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.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Sustainable Development (AREA)
• Sustainable Energy (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
• Retarders (AREA)
• Structure Of Transmissions (AREA)

Applications Claiming Priority (3)

Publications (1)

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ID=19410600

Family Applications (1)

Country Status (4)

Families Citing this family (12)

Family Cites Families (7)

• 1995
  • 1995-03-27 KR KR1019950006522A patent/KR0163825B1/ko not_active Expired - Fee Related
• 1996
  • 1996-03-27 WO PCT/KR1996/000042 patent/WO1996030669A1/en not_active Ceased
  • 1996-03-27 AU AU51247/96A patent/AU5124796A/en not_active Abandoned
  • 1996-03-27 EP EP96907775A patent/EP0813659A1/de not_active Withdrawn

Non-Patent Citations (1)

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