WO1996030669A1 - A variable r.p.m. converting planetary gear system - Google Patents

A variable r.p.m. converting planetary gear system Download PDF

Info

Publication number
WO1996030669A1
WO1996030669A1 PCT/KR1996/000042 KR9600042W WO9630669A1 WO 1996030669 A1 WO1996030669 A1 WO 1996030669A1 KR 9600042 W KR9600042 W KR 9600042W WO 9630669 A1 WO9630669 A1 WO 9630669A1
Authority
WO
WIPO (PCT)
Prior art keywords
variable
speed
gear
output
input
Prior art date
Application number
PCT/KR1996/000042
Other languages
French (fr)
Inventor
Chan Shin
Original Assignee
Chan Shin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chan Shin filed Critical Chan Shin
Priority to AU51247/96A priority Critical patent/AU5124796A/en
Priority to JP8529197A priority patent/JPH10512353A/en
Priority to EP96907775A priority patent/EP0813659A1/en
Publication of WO1996030669A1 publication Critical patent/WO1996030669A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0833—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with arrangements for dividing torque between two or more intermediate shafts, i.e. with two or more internal power paths
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D15/00—Transmission of mechanical power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/403—Transmission of power through the shape of the drive components
    • F05B2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05B2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclic, planetary or differential type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/1016—Purpose of the control system in variable speed operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • the present invention is related to the variable- speed operation of the wind turbine technology.
  • variable- speed r.p.m. input force which converts into an increasing pre-set constant- speed r.p.m. output a highly efficient mechatronic logic actuator controlled variable r.p.m. converting planetary gear system in order to generate a constant-output frequency and voltage of utility grade power output, despite the variable- speed r.p.m. input of the rotor turbine under varying wind conditions.
  • Wind is one of the coldest form of energy used by man. With enormous increases in demand for environmentally friendly sources of energy, plus a growing fossil-fuel shortage, development of alternative energy sources has been stimulated. In this same environment, wind conversion technologies are becoming more efficient and competitive, generating a high quality of electrical energy. However, in order to meet global clean energy needs, it will be necessary to adopt a new technical approach to wind-generated electrical energy production. There are two major challenges to a developer of a wind energy converting system ' a constant-speed technology system and a variable- speed processing technology system. The pitch control system of constant- speed wind turbines are designed to operate over a very narrow wind speed range in order to maintain constant-speed rotation for a fixed frequency of electricity produced.
  • the system should be provided with a power-electronic inverter as 5 essential equipment for fixed frequency and constant power output, but the conventional power-electronic inverter systems deliver poor power quality with high levels of harmonics and a varying power factor.
  • variable- speed technology of wind turbines can improve energy capture and reduce mechanical stress and audible noise levels caused by the 10 varying speed of the rotor according to wind velocity. It is possible to maintain the ideal angle of attack of the blades over a wide range of wind conditions.
  • the present invention provides for a more cost effective and high quality of electricity producing improved mechatronic control system which is based on 15 the prior art system patented in Korea under No. 057585 and in the United states under No. 5222924.
  • the rotor turbine should be provided with a innovational system for a continuos range of variable- speed operation in all wind conditions.
  • FIG. 1 shown is a general perspective structure of the advanced wind turbine equipped with the said system and in FIG. 2 is an overall control schematic diagram of the system.
  • variable-speed rotation r.p.m. When variable- speed rotation r.p.m. increased by the main gear system 100 from the input force of rotor turbine, it is applied to the variable speed actuator 200 and the convertible r.p.m. of planetary gear device 400 via an input axle shaft 100' from the main gear 100.
  • the actuator 200 controls the variable r.p.m. converting system 400 according to the control signal which is processed by the mechatronic governing part 300 including forward-reverse variable speed motor 330 equipped with a sensor 310 for monitoring the pre-set r.p.m. of the output axle shaft 500.
  • FIG. 3 is shown a software operational flow chart which illustrated the sequence of controls. If the final output r.p.m. (Zo) meets the pre-set r.p.m.
  • FIG. 1 is a side elevational view of the multi-input propeller-type wind turbine generator containing a variable r.p.m converting planetary gear system according to the present invention.
  • FIG. 2 is a block diagram of the control system for the constant- speed rotating output system of the present invention.
  • FIG. 3 is an operational flow chart of microprocessor of the present invention.
  • FIG. 4 is a detailed cross sectional view of the main embodiment of the present invention.
  • FIG. 5 is a cross- sectional view of FIG. 4, taken along line A- A.
  • FIG. 6 is a cross- sectional view of FIG. 4, taken along line B-B and line D-D.
  • FIG. 7 is a cross- sectional view of FIG. 4, taken along line C ⁇ C.
  • FIG. 1, FIG. 2, FIG. 3 and FIG. 4 it is comprised of ' — a multi- input rotor turbine equipped with a main gear system 100, as shown in FIG. 1 and FIG. 2, which has a vertical output axle shaft 100',
  • a ring gear 240 forward-reverse variable speed rotatable, being controlled by actuator motor 330 of the control part 300, — a spider 230, forward -reverse variable speed rotatable, connected to the three planet gear members 220 which provided a respective pivotal axis,
  • a spider 430 connected to the input shaft 100', consisting of three planet gear members 420 which provided a respective pivotal axis,
  • the reversal transfer gears 600 being pivotally fastened to the case 10 in order to convert the rotation direction of spider 230 and ring gear 440 or reverse, — a ring gear 440, forward-reverse variable speed rotatable, being controlled by spider 230 of the actuator200,
  • a microprocessor 320 equipped with the r.p.m. sensor 310 for monitoring the final r.p.m. of the output axle shaft 500
  • variable r.p.m. converting system in order to convert to constant-speed r.p.m. output of the present invention for use in a variable-speed rotor turbine as well as other applicable mechanical devices where need be.
  • the possible system control methods are achieved as follows:
  • variable r.p.m. ⁇ speed input from the main gear system 100 is applied to the input sun gear 210 through the input axle shaft 100' in the center of the actuator 200.
  • the sun gear 210 of the actuator 200 rotates clockwise, the three planet gear members 220, connected to spider 230 are revolve around the sun gear 210 in a geared relationship with the forward-reverse rotatable ring gear 240.
  • This activating gear 333 is equipped with a horizontal rotor shaft 334, connected to the worm gear 340 which rotates in a geared retationship with worm-wheel-gear 350 connected to the extender 241 which extended from the ring gear 240 of the actuator 200.
  • variable r.p.m. converting planetary gear system 400 operates as a normal operation planetary gear in principle, thus the input r.p.m. force is applied to the spider 430 of the planetary gear numbers 420 through the input axle shaft 100' with an immovable neutrally positioned ring gear 440.
  • the output sun gear 410 rotates at the speed of pre-set constant-speed r.p.m. of the converting system 400, which is consistent with the equation ⁇ .
  • the Output r. p. m. is higfrer than the pre-set r. p. m. wi th Ro ⁇ Zo.
  • the output speed monitoring sensor 310 attached to the output axle shaft 500 activates to send a Ro ⁇ Zo signal to the microprocessor 320 as shown in FIG. 2, FIG. 3, FIG. 4 and FIG. 5.
  • the microprocessor 320 compares the signal Ro ⁇ Zo with the pre-set r.p.m.
  • the rotation force of the spider 230 is transmitted via reversal transfer gears 600 and is applied to the ring gear 440 which rotates at the neutral position in the clockwise direction of the variable r.p.m. converting system 400, which is consistent with the equation . Consequently, both one-way rotation direction of the pivotally forward-reverse rotatable ring gear 440 and the spider 430 connected to the input axle shaft 100' can be adjust the r.p.m. to meet the pre-set constant output r.p.m. of the output axle shaft 500.
  • the microprocessor 320 compares the signal Ro ⁇ Zo with the pre-set r.p.m. and processed to send a control signal to the actuating motor 330.
  • the actuating motor 330 controls the revolving speed of the spider 230 through the ring gear 240 of the planet gear member 220 in order to rotate in a clockwise at the immovable neutral position.
  • the rotation force is transmitted via the reversal transfer gears 600 and is applied to the ring gear 440 which rotated at the immovable neutral position in the counter-clockwise direction.
  • the constant r.p.m. of the output axle shaft 500 can be controlled by the rotation speed and direction of the ring gear 440, which is consistent with the equation (3).
  • variable r.p.m. converting system of the present invention is applicable to the various industrial fields. Numerous modifications and variations of the present invention are possible : a series or parallel connection of multiple control gear devices and motors, either the input or the output r.p.m. monitoring sensor devices or both of them, and the mechanical structures of the actuator as well as the mechatronic control devices. All such modifications as would be obvious to one skilled in the art are to be included within the scope of this invention as defined by the following claims.

Abstract

The present invention is to provide an advance variable-speed operation wind turbine system which overcomes the disadvantages and deficiencies of the conventional variable-speed and fixed-speed operation technology. The disclosed variable r.p.m. converting planetary gear system is designed to be used with a variable-speed operation wind turbines for the wind energy converting system which is comprised of the three mechanical configurations: an actuator control mechatronics controlled by microprocessor part (300), an actuator part (200), including three reversal transfer gears (600), and the variable r.p.m. converting part (400) of the special featured planetary gear system. The variable-speed r.p.m. input rotation force created by the varying rotor speed in accordance with wind velocity, is converted to a pre-set constant r.p.m. output force by adjusting the rotation speed and direction of the ring gear (440) of the converting system. The operational control is built up on the base of the microprocessor system with a monitoring sensor supervised the r.p.m. of input or output shaft in order to pre-set constant r.p.m. output. The system, thereby, allows to generate a high-quality mains power from variable-speed wind turbine without any power-electronic inverter system.

Description

DESCRIPTION
A VARIABLE R.P.M. CONVERTING PLANETARY GEAR SYSTEM
Technical Field
The present invention is related to the variable- speed operation of the wind turbine technology. With variable- speed r.p.m. input force which converts into an increasing pre-set constant- speed r.p.m. output a highly efficient mechatronic logic actuator controlled variable r.p.m. converting planetary gear system in order to generate a constant-output frequency and voltage of utility grade power output, despite the variable- speed r.p.m. input of the rotor turbine under varying wind conditions.
Background Art
Wind is one of the coldest form of energy used by man. With enormous increases in demand for environmentally friendly sources of energy, plus a growing fossil-fuel shortage, development of alternative energy sources has been stimulated. In this same environment, wind conversion technologies are becoming more efficient and competitive, generating a high quality of electrical energy. However, in order to meet global clean energy needs, it will be necessary to adopt a new technical approach to wind-generated electrical energy production. There are two major challenges to a developer of a wind energy converting system ' a constant-speed technology system and a variable- speed processing technology system. The pitch control system of constant- speed wind turbines are designed to operate over a very narrow wind speed range in order to maintain constant-speed rotation for a fixed frequency of electricity produced.
However, the system should be provided with a power-electronic inverter as 5 essential equipment for fixed frequency and constant power output, but the conventional power-electronic inverter systems deliver poor power quality with high levels of harmonics and a varying power factor.
The variable- speed technology of wind turbines can improve energy capture and reduce mechanical stress and audible noise levels caused by the 10 varying speed of the rotor according to wind velocity. It is possible to maintain the ideal angle of attack of the blades over a wide range of wind conditions.
The present invention provides for a more cost effective and high quality of electricity producing improved mechatronic control system which is based on 15 the prior art system patented in Korea under No. 057585 and in the United states under No. 5222924.
It should also be noted that an important feature of the invention which converts a variable- speed r.p.m input force into a constant- speed r.p.m output with an high efficiency without change to the gear ratio of the planetary gear 20 system controlled by mechatronic logic control system.
Disclosure of Invention
The majority of wind turbines currently installed operate at constant speed through grid-connected alternators or induction generators, so that at the maximum performance coefficient Cp(max) will only occur at one wind r>r_: velocity. Cp(max) ' yielding a maximum power coefficient
Therefore, to maximize the annual energy capture the rotor turbine should be provided with a innovational system for a continuos range of variable- speed operation in all wind conditions.
Although a number of mechanical variable-systems have been tried, the majority of designs use power-electronic inverter interface. The conventional power-electronic interfaces providing the necessary frequency conversion return power to the network through Line Commutable Inverter(LCI). These deliver poor quality power with high harmonics and a vary power factor even if supply side harmonic filters are used. The present invention of the system can eHminate all of the above mentioned problems.
Referring now to the drawing, in FIG. 1 shown is a general perspective structure of the advanced wind turbine equipped with the said system and in FIG. 2 is an overall control schematic diagram of the system.
When variable- speed rotation r.p.m. increased by the main gear system 100 from the input force of rotor turbine, it is applied to the variable speed actuator 200 and the convertible r.p.m. of planetary gear device 400 via an input axle shaft 100' from the main gear 100. The actuator 200 controls the variable r.p.m. converting system 400 according to the control signal which is processed by the mechatronic governing part 300 including forward-reverse variable speed motor 330 equipped with a sensor 310 for monitoring the pre-set r.p.m. of the output axle shaft 500. In FIG. 3 is shown a software operational flow chart which illustrated the sequence of controls. If the final output r.p.m. (Zo) meets the pre-set r.p.m. (Ro) then the microprocessor 320 controls the ring gear 440 immovable neutral position for the constant output r.p.m. Ro=Zo, if the output r.p.m (Zo) is higher than the pre-set r.p.m (Ro) Ro≤Zo, the microprocessor 320 controls to clockwise rotation direction and the speed of ring gear 440, if the r.p.m. Zo is lower than the r.p.m. Ro Ro≥Zo the microprocessor 320 controls to counter-clockwise rotation direction and the speed of ring gear(440) by means of a mechanical processing of rotation speed and direction of the ring gear 440 of the system 400. Brief Description of the Drawings
The present invention will be fully appreciated as it becomes better understood through detailed description of the accompanying drawings ;
FIG. 1 is a side elevational view of the multi-input propeller-type wind turbine generator containing a variable r.p.m converting planetary gear system according to the present invention.
FIG. 2 is a block diagram of the control system for the constant- speed rotating output system of the present invention. FIG. 3 is an operational flow chart of microprocessor of the present invention. FIG. 4 is a detailed cross sectional view of the main embodiment of the present invention. FIG. 5 is a cross- sectional view of FIG. 4, taken along line A- A. FIG. 6 is a cross- sectional view of FIG. 4, taken along line B-B and line D-D. FIG. 7 is a cross- sectional view of FIG. 4, taken along line C~C.
Best Mode for Carrying Out the Invention
In reference to details regarding the illustrations of the preferred designs of the present invention, as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, it is comprised of ' — a multi- input rotor turbine equipped with a main gear system 100, as shown in FIG. 1 and FIG. 2, which has a vertical output axle shaft 100',
— an actuator 200 controlled by mechatronic control device 300,
— a ring gear 240, forward-reverse variable speed rotatable, being controlled by actuator motor 330 of the control part 300, — a spider 230, forward -reverse variable speed rotatable, connected to the three planet gear members 220 which provided a respective pivotal axis,
— a spider 430, connected to the input shaft 100', consisting of three planet gear members 420 which provided a respective pivotal axis,
— the reversal transfer gears 600 being pivotally fastened to the case 10 in order to convert the rotation direction of spider 230 and ring gear 440 or reverse, — a ring gear 440, forward-reverse variable speed rotatable, being controlled by spider 230 of the actuator200,
— a microprocessor 320 equipped with the r.p.m. sensor 310 for monitoring the final r.p.m. of the output axle shaft 500,
— a forward-reverse variable- speed actuating motor 330 governing the rotation speed and direction of the ring gear 240 of the actuator 200 controls the rotation speed and direction of the ring gear 440.
As shown in FIG. 4, in detailed drawings, for the purpose of illustrating the preferred embodiment of the variable r.p.m. converting system in order to convert to constant-speed r.p.m. output of the present invention for use in a variable-speed rotor turbine as well as other applicable mechanical devices where need be. The possible system control methods are achieved as follows:
1 ) . The Output r. p. m. equals pre-set r. p. m. wi th Ro = Zo
Figure imgf000007_0001
Ro '• the number of output r.p.m. of pre-set constant- speed Zo '• the number of output r.p.m. of constant-speed.
Am ' the number of input r.p.m. of variable- speed. Zs : the number of teeth of sun gear 410. ZR '• the number of teeth of ring gear 440.
Am '■ the number of rotation speed and direction of ring gear 440. 0 : Zero .neutral position).
As shown in FIG. 2 and FIG. 4, variable r.p.m. Δπ speed input from the main gear system 100 is applied to the input sun gear 210 through the input axle shaft 100' in the center of the actuator 200.
Accordingly if the sun gear 210 of the actuator 200 rotates clockwise, the three planet gear members 220, connected to spider 230 are revolve around the sun gear 210 in a geared relationship with the forward-reverse rotatable ring gear 240.
When the input rotating force is applied to the spider 430, consisting of three planet gear members 420, connected to the lower end of the input axle shaft 100', which rotates in a geared relationship with the sun gear 410 and the ring gear 440 in the same direction. This effect is caused by the planet gear members 220 which are forced to revolve around the sun gear 210 counter-clockwise by load reaction rotation force from the constant r.p.m. converting system 400. Because of the rotation load reaction force from the forward -reverse rotatable ring gear 440 is applied to the spider 230 of the planet gear members 220 of the actuator 200 through the gear teeth 441 and reversal transfer gears 600 and gear teeth 231 of the spider 230.
As shown in FIG. 4 and FIG. 5 the final output speed r.p.m monitoring sensor 310, positioned around the output axle shaft 500, sends a Ro=Zo signal to the microprocessor 320, which processes the signal Ro=Zo to the control mechatronic variable- speed forward-reverse actuating motor 330 of the actuator 300, which being connected to the control gear(332) connected to the rotor shaft 331, which rotates in a geared relationship with the activating gear 333. This activating gear 333 is equipped with a horizontal rotor shaft 334, connected to the worm gear 340 which rotates in a geared retationship with worm-wheel-gear 350 connected to the extender 241 which extended from the ring gear 240 of the actuator 200.
However, if the spider 230 of the planet gear members 220 of the actuator 200 is forced to revolve around the counter-rotation of input sun gear 210 by the load reaction force, as previously described, is to be controlled in balance to immovable neutral position by the speed of the ring gear 240 of the actuator 200 through the actuating motor 330 of actuator control system 300.
As a result the variable r.p.m. converting planetary gear system 400, operates as a normal operation planetary gear in principle, thus the input r.p.m. force is applied to the spider 430 of the planetary gear numbers 420 through the input axle shaft 100' with an immovable neutrally positioned ring gear 440. The output sun gear 410 rotates at the speed of pre-set constant-speed r.p.m. of the converting system 400, which is consistent with the equation φ.
2 ) The Output r. p. m. is higfrer than the pre-set r. p. m. wi th Ro≤Zo.
Figure imgf000009_0001
-dm '• a number of clockwise rotation of ring gear(440)
As shown in FIG. 2 and FIG. 4, when a variable speed r.p.m. Δn input with Ro≤Zo, from the main gear system 100 is applied to the input sun gear 210 positioned in the center of the actuator 200 through the input axle shaft 100', the input sun gear 210 rotates in a geared relationship with the three planet gear members 220 and the ring gear 240 of the actuator 200.
If with a gust of wind, an over speed variable r.p.m. is applied to the said gear system 400, and the output sun gear 410 rotates with a higher speed than the pre-set r.p.m., the output speed monitoring sensor 310 attached to the output axle shaft 500 activates to send a Ro ≤ Zo signal to the microprocessor 320 as shown in FIG. 2, FIG. 3, FIG. 4 and FIG. 5. The microprocessor 320 compares the signal Ro≤Zo with the pre-set r.p.m. sends a control signal to the mechatronic variable-speed actuating motor 330, and then the actuating motor 330 will accelerate the rotation speed to control counter-clockwise rotation of the ring gear 240 so as to adjust counter-colckwise rotation to the speed of the spider 230 (the load reaction rotation force is applied to the spider 230 counter-clockwise).
The rotation force of the spider 230 is transmitted via reversal transfer gears 600 and is applied to the ring gear 440 which rotates at the neutral position in the clockwise direction of the variable r.p.m. converting system 400, which is consistent with the equation . Consequently, both one-way rotation direction of the pivotally forward-reverse rotatable ring gear 440 and the spider 430 connected to the input axle shaft 100' can be adjust the r.p.m. to meet the pre-set constant output r.p.m. of the output axle shaft 500.
3) The Output r. p. m. is lower than the presetting r. p. m. with Ro≥Zo.
°=(- -f- * H+(-§ * H ®
+ Δm '• the number of counter-clockwise rotation of ring gear 440
As shown in FIG. 2 and FIG. 4, when a variable lower speed r.p.m. Δn input with Ro≥Zo, from the main gear system 100 is applied to the input sun gear 210 positioned in the center of the actuator 200 through the input axle shaft 100' and the input sun gear 210, these gears rotate in a geared relationship with three planet gear members 220 and the ring gear 240 of the actuator 200. The lower speed r.p.m. due to weak wind conditions, is also taken into account in the above mentioned gear system 400. The output sun gear 410 rotates with a lower speed r.p.m. than the pre-set r.p.m., thereby the activating output speed monitoring sensor 310 to send a Ro≥Zo signal to the microprocessor 320, as shown in FIG. 2, FIG. 3 and FIG. 4. The microprocessor 320 compares the signal Ro≥Zo with the pre-set r.p.m. and processed to send a control signal to the actuating motor 330. The actuating motor 330 controls the revolving speed of the spider 230 through the ring gear 240 of the planet gear member 220 in order to rotate in a clockwise at the immovable neutral position.
As above described the rotation force is transmitted via the reversal transfer gears 600 and is applied to the ring gear 440 which rotated at the immovable neutral position in the counter-clockwise direction. Thus, the constant r.p.m. of the output axle shaft 500 can be controlled by the rotation speed and direction of the ring gear 440, which is consistent with the equation (3).
As described previously, the variable r.p.m. converting system of the present invention is applicable to the various industrial fields. Numerous modifications and variations of the present invention are possible : a series or parallel connection of multiple control gear devices and motors, either the input or the output r.p.m. monitoring sensor devices or both of them, and the mechanical structures of the actuator as well as the mechatronic control devices. All such modifications as would be obvious to one skilled in the art are to be included within the scope of this invention as defined by the following claims.

Claims

What is claimed is;
1. A variable r.p.m. converting planetary gear system comprising: a) A variable- speed r.p.m. input axle shaft 100' , b) An actuator 200 including an input sun gear 210 fixed to the 5 surface of said input axle shaft 100' , a plurality of planet gear members 220, a forward-reverse variable speed rotatable spider 230 and a forward-reverse rotatable ring gear 240, c) A mechatronic control means 300 connected to said forward- reverse ring gear 240 to control the rotation speed and the
10 direction of said forward-reverse ring gear 240, d) A constant r.p.m. of planetary gear means 400 including an output spider 430 fixed to the lower part of said input axle shaft 100' , rotatable planet members 420 connected to said out spider 430, a ring gear 440 in geared relationship with said
15 input spider 230 and an output sun gear 410 positioned inside and to rotate in geared relationship with said rotatable planet members 420, e) An output axle shaft 500 fixed in the center of said output sun gear 410.
20 2. The variable r.p.m. converting planetary gear system according to claim 1 wherein said forward-reverse spider 230 and said ring gear 440 are equipped with gear's teeth 231, 441 in geared relationship with each other, through transfer gears 600 pivotally fastened to the case 10.
25 3. The variable r.p.m. converting planetary gear system according to claim 1 or 2 wherein said mechatronic control means 300 comprises a sensor 310 monitoring the rotation r.p.m. the output axle shaft 500, a microprocessor 320 to process the rotation speed and direction of said mechatronic control means 300, a forward-reverse variable-speed actuator motor 330 which is rotating in the speed and direction being controlled by said microprocessor 320, a forward-reverse rotatable worm gear 340 and a worm-wheel-gear 350 formed on the outer surface of said ring gear 240.
4. The variable r.p.m. converting planetary gear system according to claim 3 wherein a control gear 332 is fixed to the rotor schaft 331 of said actuating motor 330 connected to the actuating gear 333 in geared relationship, and said rotatable worm-gear 340 is fixed to the axle shaft 334 and in geared relationship with the worm-wheel-gear 350.
PCT/KR1996/000042 1995-03-27 1996-03-27 A variable r.p.m. converting planetary gear system WO1996030669A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU51247/96A AU5124796A (en) 1995-03-27 1996-03-27 A variable r.p.m. converting planetary gear system
JP8529197A JPH10512353A (en) 1995-03-27 1996-03-27 Transmission input constant speed output gear device
EP96907775A EP0813659A1 (en) 1995-03-27 1996-03-27 A variable r.p.m. converting planetary gear system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019950006522A KR0163825B1 (en) 1995-03-27 1995-03-27 Gearing device with a change input and normal speed output
KR1995/6522 1995-03-27

Publications (1)

Publication Number Publication Date
WO1996030669A1 true WO1996030669A1 (en) 1996-10-03

Family

ID=19410600

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1996/000042 WO1996030669A1 (en) 1995-03-27 1996-03-27 A variable r.p.m. converting planetary gear system

Country Status (4)

Country Link
EP (1) EP0813659A1 (en)
KR (1) KR0163825B1 (en)
AU (1) AU5124796A (en)
WO (1) WO1996030669A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6137187A (en) * 1997-08-08 2000-10-24 Zond Energy Systems, Inc. Variable speed wind turbine generator
WO2000077395A1 (en) * 1999-06-10 2000-12-21 Aloys Wobben Wind energy system with adjustment of the sound level
US6420795B1 (en) 1998-08-08 2002-07-16 Zond Energy Systems, Inc. Variable speed wind turbine generator
US6459165B1 (en) * 1999-04-12 2002-10-01 Winergy Ag Drive for a windmill
US6847128B2 (en) 1997-08-08 2005-01-25 General Electric Company Variable speed wind turbine generator
US7081689B2 (en) * 2003-12-23 2006-07-25 Voith Turbo Gmbh & Co. Kg Control system for a wind power plant with hydrodynamic gear
WO2009016508A2 (en) 2007-07-30 2009-02-05 Orbital 2 Limited Improvements in and relating to electrical power generation from fluid flow
FR2927394A1 (en) * 2008-02-11 2009-08-14 Roucar Gear Technologies Bv TRANSMISSION DEVICE FOR MACHINE FOR GENERATING ELECTRICITY FROM A VARIABLE SPEED MOTOR SOURCE, ELECTRICAL PRODUCTION UNIT AND WIND TURBINE SO EQUIPPED, AND METHOD OF ADJUSTING A TRANSMISSION RATIO
CN103334880A (en) * 2013-07-25 2013-10-02 王德忠 Wind-driven generating set for constant-frequency power generation
CN103527413A (en) * 2013-09-23 2014-01-22 王德忠 Wind power generating device capable of generating power at constant frequency
CN103890386A (en) * 2011-10-27 2014-06-25 西门子公司 Gearbox for industrial applications or wind power plants
US8845471B2 (en) 2013-01-23 2014-09-30 General Electric Company Variable input synchronous output drivetrain for wind turbine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001444A1 (en) * 1979-11-14 1981-05-28 Allmaenna Ingbyran Windmill transmission and control systems
FR2509822A1 (en) * 1981-07-15 1983-01-21 Schweizerische Lokomotiv CONTROL DEVICE, IN PARTICULAR FOR MOTOR VEHICLE ON RAILS FOR GEAR CHOICE AND ADHESION OPERATION, OR ADHESION ONLY, WITH SUBDIVISION MECHANISM
EP0120654A1 (en) * 1983-03-23 1984-10-03 The English Electric Company Limited Power generating equipment
US4513206A (en) * 1980-09-15 1985-04-23 Snamprogetti S.P.A. Exploitation of wind energy for producing electrical power
WO1991019916A1 (en) * 1990-06-09 1991-12-26 Hicks Transmissions Limited Epicyclic gear train
JPH06200864A (en) * 1992-12-28 1994-07-19 Kawatetsu Techno Res Corp Variable speed output device
EP0635639A1 (en) * 1993-07-21 1995-01-25 Ashot Ashkelon Industries Ltd. Improved wind turbine transmission

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981001444A1 (en) * 1979-11-14 1981-05-28 Allmaenna Ingbyran Windmill transmission and control systems
US4513206A (en) * 1980-09-15 1985-04-23 Snamprogetti S.P.A. Exploitation of wind energy for producing electrical power
FR2509822A1 (en) * 1981-07-15 1983-01-21 Schweizerische Lokomotiv CONTROL DEVICE, IN PARTICULAR FOR MOTOR VEHICLE ON RAILS FOR GEAR CHOICE AND ADHESION OPERATION, OR ADHESION ONLY, WITH SUBDIVISION MECHANISM
EP0120654A1 (en) * 1983-03-23 1984-10-03 The English Electric Company Limited Power generating equipment
WO1991019916A1 (en) * 1990-06-09 1991-12-26 Hicks Transmissions Limited Epicyclic gear train
JPH06200864A (en) * 1992-12-28 1994-07-19 Kawatetsu Techno Res Corp Variable speed output device
EP0635639A1 (en) * 1993-07-21 1995-01-25 Ashot Ashkelon Industries Ltd. Improved wind turbine transmission

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6856039B2 (en) 1997-08-08 2005-02-15 General Electric Company Variable speed wind turbine generator
US7095131B2 (en) 1997-08-08 2006-08-22 General Electric Company Variable speed wind turbine generator
US6137187A (en) * 1997-08-08 2000-10-24 Zond Energy Systems, Inc. Variable speed wind turbine generator
US6847128B2 (en) 1997-08-08 2005-01-25 General Electric Company Variable speed wind turbine generator
US6420795B1 (en) 1998-08-08 2002-07-16 Zond Energy Systems, Inc. Variable speed wind turbine generator
US6459165B1 (en) * 1999-04-12 2002-10-01 Winergy Ag Drive for a windmill
US6688841B1 (en) 1999-06-10 2004-02-10 Aloys Wobben Wind energy system with adjustment of the sound level
WO2000077395A1 (en) * 1999-06-10 2000-12-21 Aloys Wobben Wind energy system with adjustment of the sound level
US7081689B2 (en) * 2003-12-23 2006-07-25 Voith Turbo Gmbh & Co. Kg Control system for a wind power plant with hydrodynamic gear
WO2009016508A2 (en) 2007-07-30 2009-02-05 Orbital 2 Limited Improvements in and relating to electrical power generation from fluid flow
WO2009016508A3 (en) * 2007-07-30 2010-05-27 Orbital 2 Limited Improvements in and relating to electrical power generation from fluid flow
RU2471087C2 (en) * 2007-07-30 2012-12-27 Орбитал 2 Лимитед Driving mechanism of power generator (versions), method to control frequency of power generator driving mechanism rotation, turbine (versions)
FR2927394A1 (en) * 2008-02-11 2009-08-14 Roucar Gear Technologies Bv TRANSMISSION DEVICE FOR MACHINE FOR GENERATING ELECTRICITY FROM A VARIABLE SPEED MOTOR SOURCE, ELECTRICAL PRODUCTION UNIT AND WIND TURBINE SO EQUIPPED, AND METHOD OF ADJUSTING A TRANSMISSION RATIO
WO2009101360A1 (en) * 2008-02-11 2009-08-20 Roucar Gear Technologies B.V. Transmission device for a machine for producing electricity from a variable‑speed motive source, unit for producing electricity and wind machine both so equipped, and method of adjusting a transmission ratio
CN103890386A (en) * 2011-10-27 2014-06-25 西门子公司 Gearbox for industrial applications or wind power plants
CN103890386B (en) * 2011-10-27 2016-08-24 西门子公司 For commercial Application or the actuating device of wind power plant
US8845471B2 (en) 2013-01-23 2014-09-30 General Electric Company Variable input synchronous output drivetrain for wind turbine
CN103334880A (en) * 2013-07-25 2013-10-02 王德忠 Wind-driven generating set for constant-frequency power generation
CN103527413A (en) * 2013-09-23 2014-01-22 王德忠 Wind power generating device capable of generating power at constant frequency

Also Published As

Publication number Publication date
EP0813659A1 (en) 1997-12-29
AU5124796A (en) 1996-10-16
KR0163825B1 (en) 1998-12-01
KR960034813A (en) 1996-10-24

Similar Documents

Publication Publication Date Title
EP0635639A1 (en) Improved wind turbine transmission
WO1996030669A1 (en) A variable r.p.m. converting planetary gear system
WO2011011358A2 (en) A system and method for providing a constant output from a variable flow input
CN203601542U (en) Tidal current power generation device and installation frame thereof
KR20070047303A (en) Power train for a wind power plant
WO2008079553A2 (en) Oscillating windmill
CN101344073A (en) Variable-speed constant-frequency apparatus of wind generator set
CN103346718A (en) Control method of birotor permanent magnet wind power generation system under voltage imbalance
CN102852726B (en) Gird-connected wind power generation system with self-adaptive speed regulation composite transmission based on differential mechanism
CN101030753A (en) Pneumatic generating speed-changing frequency-constant method and apparatus based on digital-controlled flywheel hybrid driven
KR101028960B1 (en) Wind Turbine Equipment
CN103124115B (en) Wind power generation plant
JP4461078B2 (en) Wind power generator
AU4107599A (en) A variable R.P.M. converting planetary gear system
EP0058037A2 (en) Apparatus for producing a constant rotational speed from a variable speed input
CN113014037B (en) Electric gas conversion device with flywheel and stepless transmission and operation method thereof
KR20180068325A (en) Generators that generate electricity by the weight of the motor
CN208122993U (en) Stepless speed changing type ocean current energy generator
Leithead et al. Control of a variable speed wind turbine with induction generator
Barakati Wind turbine systems: history, structure, and dynamic model
CN213331400U (en) Horizontal wind driven generator with helical blades
CN205744289U (en) A kind of preposition speed-regulating type synchronous wind unit
CN202718814U (en) Direct grid wind turbine generating set of synchronous generator
CN102654106B (en) Variable-ratio speed regulation device
Rao et al. Control of induction generator in a Wells turbine based wave energy system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR CA CN JP NZ RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1996907775

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1996907775

Country of ref document: EP

ENP Entry into the national phase

Ref country code: US

Ref document number: 1998 913890

Date of ref document: 19980205

Kind code of ref document: A

Format of ref document f/p: F

NENP Non-entry into the national phase

Ref country code: CA

WWW Wipo information: withdrawn in national office

Ref document number: 1996907775

Country of ref document: EP