CN107465208B - Improved double-fed wind driven generator system and control method thereof - Google Patents

Improved double-fed wind driven generator system and control method thereof Download PDF

Info

Publication number
CN107465208B
CN107465208B CN201710733060.8A CN201710733060A CN107465208B CN 107465208 B CN107465208 B CN 107465208B CN 201710733060 A CN201710733060 A CN 201710733060A CN 107465208 B CN107465208 B CN 107465208B
Authority
CN
China
Prior art keywords
fed wind
doubly
generator
torque
control
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201710733060.8A
Other languages
Chinese (zh)
Other versions
CN107465208A (en
Inventor
曹政
李鹏
张永明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Shanghai for Science and Technology
Original Assignee
University of Shanghai for Science and Technology
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 University of Shanghai for Science and Technology filed Critical University of Shanghai for Science and Technology
Priority to CN201710733060.8A priority Critical patent/CN107465208B/en
Publication of CN107465208A publication Critical patent/CN107465208A/en
Application granted granted Critical
Publication of CN107465208B publication Critical patent/CN107465208B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381Dispersed generators
    • H02J3/382Dispersed generators the generators exploiting renewable energy
    • H02J3/386Wind energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

Abstract

The invention discloses an improved double-fed wind driven generator system and a control method thereof. The system and the method can deal with the unstable condition of the power grid, automatically regulate and control the torque of the main shaft of the double-fed wind driven generator by adopting a grading control strategy and selectively using the magnetic converter, the continuously variable transmission and the clutch, avoid the phenomena that a shaft is deformed by overlarge torque and even a wheel axle is broken due to the acceleration of a motor group and a wind-electricity plate, ensure the normal work of the double-fed wind driven generator system and prolong the service life of equipment.

Description

Improved double-fed wind driven generator system and control method thereof
Technical Field
The invention relates to a double-fed wind driven generator and a control method thereof, in particular to a double-fed wind driven generator with a hierarchical control strategy and a control method thereof, which are applied to the technical field of wind power generation and control.
Background
The kinetic energy of wind is converted into mechanical kinetic energy, and then the mechanical energy is converted into electric kinetic energy, namely wind power generation. The principle of wind power generation is that wind power drives windmill blades to rotate, and then the rotating speed is increased through a speed increaser, so that a generator is promoted to generate electricity. According to current windmill technology, the power generation can be started at a breeze speed of about three meters per second. Wind power generation is forming a hot tide in the world because it does not require the use of fuel and does not produce radiation or air pollution.
The devices required for wind power generation are called wind generating sets. The wind generating set can be divided into three parts of a wind wheel, a generator and a tower in general, wherein the wind wheel also comprises a tail vane. Because the wind quantity of the wind driven generator is unstable, alternating current with the output of 13-25V is rectified by a charger and then charges a storage battery, so that electric energy generated by the wind driven generator is changed into chemical energy. Then, the inverter power supply with a protection circuit is used for converting chemical energy in the storage battery into alternating current 220V commercial power, so that stable use can be ensured.
At present, for a double-fed variable-speed wind turbine generator, when a power grid fails to cause a voltage drop at a motor end, a stator current of a generator can be increased, the rapidly increased stator current can cause a rotor current to rapidly rise, if wind energy input of a wind wheel is not reduced at the moment, active power cannot be normally transmitted to the power grid due to the voltage drop at the motor end of the wind turbine generator, namely, a part of energy cannot be input into the power grid, unbalanced energy can cause a series of problems of capacitor charging in a direct-current link, rapid rise of direct-current voltage, acceleration of the wind turbine generator and the like of the wind turbine generator, production and use of equipment are affected, the service life of the equipment is threatened, and the technical problem to.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to overcome the defects in the prior art, and provides an improved double-fed wind driven generator system and a control method thereof, which can cope with the unstable condition of a power grid, can automatically regulate and control the torque of a main shaft of the double-fed wind driven generator by adopting a hierarchical control strategy and selectively using a magnetic converter, a continuously variable transmission and a clutch, can avoid the phenomena that a motor group and a wind-electricity plate are accelerated to cause the shaft to be deformed by overlarge torque and even the shaft is broken, ensure the normal work of the double-fed wind driven generator system, and prolong the service life of equipment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a control method of a doubly-fed wind generator adopts a three-level control scheme to selectively control the working mode of the doubly-fed wind generator, and the relation of torque reference values is set to be J1﹤J2﹤J3And implementing selection control on different working states of the doubly-fed wind generator according to the torque reference value, specifically as follows:
a. the first level of control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator does not reach the set obvious torque reference value J1The method is characterized in that a magnetic converter control method is adopted, and the wind power blade damping of the doubly-fed wind power generator is increased to reduce the torque of a main shaft of the doubly-fed wind power generator and realize the speed reduction control of a rotor of the doubly-fed wind power generator;
b. and a second-stage control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches an obvious torque reference value J2At or above the apparent torque reference J2When, howeverThe reference value J of the working limit torque of the main shaft of the doubly-fed wind generator in the shutdown operation is not reached3When the double-fed wind driven generator is used, the torque of a main shaft of the double-fed wind driven generator is reduced by adopting a stepless speed changer control method, and the speed reduction control of a rotor of the double-fed wind driven generator is realized;
c. and a third-level control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches the main shaft working limit torque reference value J of the doubly-fed wind generator3And when the double-fed wind driven generator is in a no-load state, the torque of a main shaft of the double-fed wind driven generator is reduced by adopting an automatic clutch control method, the clutch is controlled to be disengaged from a wind power blade and a rotor of the double-fed wind driven generator, the power transmission between the wind power blade and the rotor is cut off, and the rotor of the double-fed wind driven generator can be in a no-load state.
The invention also provides an improved double-fed wind driven generator system which comprises wind power blades, a gear speed increasing box, a double-fed wind driven generator and an inverter device, wherein the front end of the gear speed increasing box is connected with the wind power blades, the rear end of the gear speed increasing box is connected with a motor spindle of the double-fed wind driven generator, the improved double-fed wind driven generator system is also provided with a magnetic current transformer, a continuously variable transmission, a clutch and a main control system, a motor shaft of the double-fed wind driven generator is connected with the continuously variable transmission and the clutch, and the voltage output end of the double-fed wind driven generator is respectively connected with the magnetic current transformer and an AC-DC-AC inverter, wherein the AC-DC-AC inverter is also connected;
the working mode of the doubly-fed wind generator is selectively controlled by adopting a three-level control scheme, and the relation of torque reference values is set to be J1﹤J2﹤J3And selecting and controlling different working states of the doubly-fed wind generator by the main control system according to the torque reference value, wherein the selection and control method comprises the following specific steps:
a. the first level of control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator does not reach the set obvious torque reference value J1In the process, a magnetic converter control method is adopted, and the damping of the wind power blade of the doubly-fed wind driven generator is increased by controlling the magnetic converter through a main control systemThe torque of a main shaft of the doubly-fed wind generator is reduced, and the speed reduction control of a rotor of the doubly-fed wind generator is realized;
b. and a second-stage control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches an obvious torque reference value J2At or above the apparent torque reference J2When the working limit torque of the main shaft of the doubly-fed wind generator is not reached, the working limit torque reference value J of the main shaft of the doubly-fed wind generator needs to be stopped3When the double-fed wind driven generator is used, a stepless speed changer control method is adopted, the torque of a main shaft of the double-fed wind driven generator is reduced by controlling the stepless speed changer through a main control system, and the speed reduction control of a rotor of the double-fed wind driven generator is realized;
c. and a third-level control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches the main shaft working limit torque reference value J of the doubly-fed wind generator3And when the double-fed wind driven generator is in a no-load state, the torque of a main shaft of the double-fed wind driven generator is reduced by adopting an automatic clutch control method, the main control system controls the clutch to be disengaged from a wind power blade and a rotor of the double-fed wind driven generator, and the power transmission between the wind power blade and the rotor is cut off, so that the rotor of the double-fed wind driven generator is in a no-load state. According to the three-stage control scheme, the improved double-fed wind driven generator system can effectively cope with the unstable condition of a power grid, the working condition of the torque applied to the main shaft of the motor is reduced through different ways, and the working state of the improved double-fed wind driven generator system is stabilized.
As a preferred technical scheme of the invention, the magnetic converter comprises a network side module, a rotor side module and a peripheral circuit system, wherein the rotor side module is in signal connection with the doubly-fed wind driven generator, the peripheral circuit system is arranged between the doubly-fed wind driven generator and the network side module and sequentially formed by connecting a grid-connected contactor, a grid-side circuit breaker, a grid-side soft start contactor, a resistor and an inductor in series, wherein one contact of the grid-connected contactor is connected with the doubly-fed wind driven generator, the other contact of the grid-connected contactor is simultaneously connected with one contact of the grid-side circuit breaker and one end of a fuse respectively, the other contact of the grid-side circuit breaker is connected with one contact of the grid-side soft start contactor and a power grid respectively, the other contact of the grid-side soft start contactor is connected with one end of the resistor, the other end of the, the other end of the inductor is connected with the network side module, a network side soft start contactor, a resistor and the inductor are sequentially connected in series to form an internet working circuit between a power grid and the network side module, a power grid side circuit breaker, a fuse and the inductor are sequentially connected in series to form a protection circuit, and a direct current bus capacitor is connected in parallel between the network side module and the rotor side module.
Compared with the prior art, the invention has the following obvious and prominent substantive characteristics and remarkable advantages:
1. the invention can avoid the phenomena that a shaft is deformed by overlarge torque and even a wheel axle is broken due to the acceleration of a motor set and a wind-electricity sheet, reduce the working condition that a main shaft of the motor is subjected to the torque through different approaches and stabilize the working state of the improved double-fed wind-driven generator system;
2. the magnetic converter adopted by the invention has good stability, is convenient to install and maintain, can realize long-term net hanging operation and has low failure rate;
3. the invention adopts the control method of the stepless speed changer, improves the control efficiency, adopts the automatic clutch control method, realizes the effective guarantee of the safety of the equipment and provides effective support for the service life of the equipment.
Drawings
Fig. 1 is a schematic overall structure diagram of an improved doubly-fed wind generator system according to a preferred embodiment of the invention.
Fig. 2 is a schematic structural diagram of a magnetic converter according to a preferred embodiment of the present invention.
Detailed Description
The above-described scheme is further illustrated below with reference to specific embodiments, which are detailed below:
in this embodiment, referring to fig. 1 and fig. 2, an improved doubly-fed wind power generator system includes a wind power blade 5, a gear speed increasing box 1, a doubly-fed wind power generator 2 and an inverter, where the front end of the gear speed increasing box 1 is connected to the wind power blade 5, the rear end of the gear speed increasing box is connected to a motor spindle of the doubly-fed wind power generator 2, and the gear speed increasing box is further provided with a magnetic converter 4, a continuously variable transmission 3, a clutch 6 and a main control system, a motor shaft of the doubly-fed wind power generator 2 is further connected to the continuously variable transmission 3 and the clutch 6, and a voltage output end of the doubly-fed wind power generator 2 is respectively connected to the magnetic converter 4 and an AC-DC-AC inverter 7, where the AC-DC-AC inverter 7 is further connected to a power supply system 8 through;
the working mode of the doubly-fed wind generator 2 is selectively controlled by adopting a three-level control scheme, and the relation of the reference torque value is set as J1﹤J2﹤J3And the main control system implements selection control on different working states of the doubly-fed wind generator 2 according to the torque reference value, and the selection control comprises the following specific steps:
a. the first level of control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator 2 does not reach the set obvious torque reference value J1When the double-fed wind driven generator is used, a magnetic converter control method is adopted, the damping of a wind power blade 5 of the double-fed wind driven generator 2 is increased by controlling a magnetic converter 4 through a main control system, so that the torque of a main shaft of the double-fed wind driven generator 2 is reduced, and the speed reduction control of a rotor of the double-fed wind driven generator 2 is realized;
b. and a second-stage control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator 2 reaches the obvious torque reference value J2At or above the apparent torque reference J2The reference value J of the working limit torque of the main shaft of the doubly-fed wind generator 2 when the stop operation is needed is not reached3In the process, a stepless speed changer control method is adopted, the torque of a main shaft of the doubly-fed wind driven generator 2 is reduced by controlling the stepless speed changer 3 through a main control system, and the speed reduction control of a rotor of the doubly-fed wind driven generator 2 is realized;
c. and a third-level control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator 2 reaches the main shaft working limit torque reference value J of the doubly-fed wind generator 23Meanwhile, an automatic clutch control method is adopted to reduce double-fed wind power generationAnd the main control system controls the clutch 6 to be separated from the wind power blade 5 and the rotor of the doubly-fed wind driven generator 2, so that the power transmission between the wind power blade 5 and the rotor is cut off, and the rotor of the doubly-fed wind driven generator 2 can be in an idle state. According to the three-stage control scheme, the improved double-fed wind driven generator system can effectively cope with the unstable condition of a power grid, the working condition of the torque applied to the main shaft of the motor is reduced through different ways, and the working state of the improved double-fed wind driven generator system is stabilized.
In the present embodiment, referring to fig. 1 and fig. 2, the magnetic converter 4 includes a grid-side module 9 and a rotor-side module 10, and a peripheral circuit system, the rotor-side module 10 is in signal connection with the doubly-fed wind generator 2, the peripheral circuit system is disposed between the doubly-fed wind generator 2 and the grid-side module 9, and the peripheral circuit system is formed by connecting a grid-connected contactor 12, a grid-side circuit breaker 11, a grid-side soft start contactor 13, a resistor 14 and an inductor 15 in series in sequence, wherein one contact of the grid-connected contactor 12 is connected with the doubly-fed wind generator 2, the other contact of the grid-connected contactor 12 is simultaneously connected with one contact of the grid-side circuit breaker 11 and one end of a fuse 17 respectively, the other contact of the grid-side circuit breaker 11 is connected with one contact of the grid-side soft start contactor 13 and the grid respectively, the other contact of, the other end of the resistor 14 is connected with the other end of the fuse 17 and one end of the inductor 15, the other end of the inductor 15 is connected with the grid side module 9, a grid side soft start contactor 13, the resistor 14 and the inductor 15 are sequentially connected in series to form an on-grid working circuit between a grid and the grid side module 9, a grid side circuit breaker 11, the fuse 17 and the inductor 15 are sequentially connected in series to form a protection circuit, and a direct current bus capacitor 16 is connected in parallel between the grid side module 9 and the rotor side module 10. The magnetic current transformer 4 that this embodiment adopted is stable good, and installation maintenance is convenient, can realize long-term string net operation and fault rate are low.
In conclusion, the embodiment can avoid the phenomenon that the clicking main shaft is deformed by overlarge torque and even a wheel axle is broken due to acceleration of the motor set and the wind-electricity sheet, and can maximally cope with the unstable condition of the power grid. In the embodiment, a magnetic converter control method is adopted, so that the control flexibility is improved; the control efficiency is improved by adopting a continuously variable transmission control method; by adopting the automatic clutch control method, the safety of the equipment is effectively guaranteed, and the service life of the equipment is effectively supported.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes and modifications can be made according to the purpose of the invention, and any changes, modifications, substitutions, combinations or simplifications made according to the spirit and principle of the technical solution of the present invention shall be equivalent substitution ways, so long as the purpose of the present invention is met, and the present invention shall fall within the protection scope of the present invention as long as the technical principle and inventive concept of the improved double-fed wind power generator system and the control method thereof are not departed from the technical principle and inventive concept of the present invention.

Claims (3)

1. The control method of the doubly-fed wind generator is characterized in that a three-level control scheme is adopted to selectively control the working mode of the doubly-fed wind generator, and the relation of torque reference values is set to be J1﹤J2﹤J3And implementing selection control on different working states of the doubly-fed wind generator according to the torque reference value, specifically as follows:
a. the first level of control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator does not reach the set obvious torque reference value J1The method is characterized in that a magnetic converter control method is adopted, and the wind power blade damping of the doubly-fed wind power generator is increased to reduce the torque of a main shaft of the doubly-fed wind power generator and realize the speed reduction control of a rotor of the doubly-fed wind power generator;
b. and a second-stage control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches an obvious torque reference value J2At or above the apparent torque reference J2When the working limit torque of the main shaft of the doubly-fed wind generator is not reached, the working limit torque reference value J of the main shaft of the doubly-fed wind generator needs to be stopped3In the process, a stepless speed changer control method is adopted to reduce the torque of a main shaft of the doubly-fed wind driven generator and realize doubly-fed wind powerDeceleration control of the generator rotor;
c. and a third-level control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator reaches the main shaft working limit torque reference value J of the doubly-fed wind generator3And when the double-fed wind driven generator is in a no-load state, the torque of a main shaft of the double-fed wind driven generator is reduced by adopting an automatic clutch control method, the clutch is controlled to be disengaged from a wind power blade and a rotor of the double-fed wind driven generator, the power transmission between the wind power blade and the rotor is cut off, and the rotor of the double-fed wind driven generator can be in a no-load state.
2. The utility model provides an improved generation doubly-fed aerogenerator system, includes wind-powered electricity generation blade (5), gear speed increasing box (1), doubly-fed aerogenerator (2) and AC-DC-AC converter (7), wind-powered electricity generation blade (5) is connected to gear speed increasing box (1) front end, and the motor spindle of doubly-fed aerogenerator (2) is connected to the rear end, its characterized in that: the double-fed wind driven generator is characterized by further comprising a magnetic converter (4), a continuously variable transmission (3), a clutch (6) and a main control system, wherein a motor shaft of the double-fed wind driven generator (2) is further connected with the continuously variable transmission (3) and the clutch (6), a voltage output end of the double-fed wind driven generator (2) is respectively connected with the magnetic converter (4) and the AC-DC-AC converter (7), the AC-DC-AC converter (7) is further connected with a power supply system (8) through a power line, and the double-fed wind driven generator (2) is connected with a power grid through the AC-DC-AC converter (7);
the working mode of the doubly-fed wind generator (2) is selectively controlled by adopting a three-level control scheme, and the relation of torque reference values is set to be J1﹤J2﹤J3And the main control system implements selection control on different working states of the doubly-fed wind generator (2) according to the torque reference value, and the selection control comprises the following specific steps:
a. the first level of control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator (2) does not reach the set obvious torque reference value J1In the process, a magnetic converter control method is adopted, and the double-fed wind power generator is increased by controlling the magnetic converter (4) through a main control systemDamping of a wind power blade (5) of the motor (2) is used for reducing the torque of a main shaft of the doubly-fed wind power generator (2) and realizing the speed reduction control of a rotor of the doubly-fed wind power generator (2);
b. and a second-stage control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator (2) reaches an obvious torque reference value J2At or above the apparent torque reference J2When the main shaft torque reaches the main shaft working limit torque reference value J of the doubly-fed wind driven generator (2) needing the stop operation, but the reference value J does not reach the main shaft working limit torque reference value3When the double-fed wind driven generator is used, a stepless speed changer control method is adopted, the torque of a main shaft of the double-fed wind driven generator (2) is reduced by controlling the stepless speed changer (3) through a main control system, and the speed reduction control of a rotor of the double-fed wind driven generator (2) is realized;
c. and a third-level control scheme:
when the main control system detects that the torque of the main shaft of the doubly-fed wind generator (2) reaches the main shaft working limit torque reference value J of the doubly-fed wind generator (2)3When the double-fed wind driven generator is used, the torque of a main shaft of the double-fed wind driven generator (2) is reduced by adopting an automatic clutch control method, the clutch (6) is controlled by the main control system to be separated from the wind power blade (5) and the rotor of the double-fed wind driven generator (2), the power transmission between the wind power blade (5) and the rotor is cut off, and the rotor of the double-fed wind driven generator (2) can be in an idle state.
3. The improved doubly-fed wind generator system of claim 2, wherein: the magnetic converter (4) comprises a network side module (9), a rotor side module (10) and a peripheral circuit system, the rotor side module (10) is in signal connection with the doubly-fed wind driven generator (2), the peripheral circuit system is arranged between the doubly-fed wind driven generator (2) and the network side module (9), the peripheral circuit system is formed by connecting a grid-connected contactor (12), a power grid side circuit breaker (11), a power grid side soft start contactor (13), a resistor (14) and an inductor (15) in series in sequence, one contact of the grid-connected contactor (12) is connected with the doubly-fed wind driven generator (2), the other contact of the grid-connected contactor (12) is simultaneously connected with one contact of the power grid side circuit breaker (11) and one end of a fuse (17) respectively, the other contact of the power grid side circuit breaker (11) is connected with one contact of the power grid side soft start contactor (13) and the power grid respectively, another contact of electric wire netting side soft start contactor (13) is connected with the one end of resistance (14), the other end of resistance (14) is connected with the other end of fuse (17) and the one end of inductance (15) simultaneously, the other end and the net side module (9) of inductance (15) are connected, between electric wire netting and net side module (9), by electric wire netting side soft start contactor (13), resistance (14) and inductance (15) establish ties in proper order and form online working circuit, and by electric wire netting side circuit breaker (11), fuse (17) and inductance (15) establish ties in proper order and form protection circuit connect direct current bus electric capacity (16) between net side module (9) and rotor side module (10).
CN201710733060.8A 2017-08-24 2017-08-24 Improved double-fed wind driven generator system and control method thereof Active CN107465208B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710733060.8A CN107465208B (en) 2017-08-24 2017-08-24 Improved double-fed wind driven generator system and control method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710733060.8A CN107465208B (en) 2017-08-24 2017-08-24 Improved double-fed wind driven generator system and control method thereof

Publications (2)

Publication Number Publication Date
CN107465208A CN107465208A (en) 2017-12-12
CN107465208B true CN107465208B (en) 2020-09-08

Family

ID=60550413

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710733060.8A Active CN107465208B (en) 2017-08-24 2017-08-24 Improved double-fed wind driven generator system and control method thereof

Country Status (1)

Country Link
CN (1) CN107465208B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110401216B (en) * 2018-04-25 2020-12-29 株洲中车时代电气股份有限公司 Grid-connected device of double-fed wind turbine generator
CN111422170A (en) * 2020-03-24 2020-07-17 北京交通大学 Rail train braking auxiliary system with power generation and damping functions

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009070089A1 (en) * 2007-11-29 2009-06-04 Joensson Ragnar Method and system for controlling an electric ac motor
CN103117692B (en) * 2013-03-11 2015-05-20 华北电力大学(保定) Control method of mechanical elastic energy storing permanent magnet motor group under various external disturbances
CN203837912U (en) * 2014-05-26 2014-09-17 湖南科技大学 Wind power generation set transmission chain full working condition test analog device
CN103983454B (en) * 2014-05-26 2017-02-01 湖南科技大学 Wind turbine generator transmission chain full-working-condition test simulation device
CN104408223B (en) * 2014-10-13 2017-12-19 北京交通大学 A kind of tracking optimal control method of Wind turbines
US10712717B2 (en) * 2015-05-15 2020-07-14 General Electric Company Condition-based validation of performance updates
CN104935233B (en) * 2015-06-09 2019-04-30 北京天诚同创电气有限公司 Permanent magnet direct-driving aerogenerator electromagnetic torque control method and device
CN105909469B (en) * 2016-04-29 2018-09-25 南京理工大学 A kind of limit Poewr control method for the variable speed constant frequency Wind turbines reducing variable pitch action

Also Published As

Publication number Publication date
CN107465208A (en) 2017-12-12

Similar Documents

Publication Publication Date Title
CN102155356A (en) Method for controlling running of wind generating set based on speed-regulating front end of electromagnetic coupler
CN101136582A (en) Control method of DC side-discharging circuit of full power convertor
CN201339544Y (en) Passive pitch-controlled wind-powered generator with shifting device
CN102916446B (en) Electric control system of asynchronous wind generating set
KR101687900B1 (en) A method for smoothing wind power fluctuation based on battery energy storage system for wind farm
CN107465208B (en) Improved double-fed wind driven generator system and control method thereof
CN103762919A (en) Power control device and method used for low voltage ride through of direct-drive wind driven generator
CN102780229B (en) Wind turbine power control system applying super capacitor
CN100376065C (en) Wind power generating system based on direct current generator
CN201332277Y (en) Transducer redundant system of large scale wind generating set
CN201802563U (en) Full-power squirrel-cage set wind power generation apparatus
CN104242346A (en) Low voltage ride-through control method of wind generation set
Fandi et al. Modeling and simulation of a gearless variable speed wind turbine system with PMSG
CN105356504A (en) Converter, control method thereof and wind power generation system
CN201802564U (en) Half direct-driving and full-power wind power generating device
CN105041575A (en) Multi-motor power generation device and wind power generation unit
Firouzi et al. A modified transformer-type fault current limiter for enhancement fault ride-through capability of fixed speed-based wind power plants
CN204851538U (en) Many motors power generation facility and wind generating set
CN102255334B (en) Intelligent unit matrix grid connecting technology of wind generating set and special equipment thereof
CN201003466Y (en) 1.5MW direct-drive type variable speed constant frequency wind-driven generator group
CN201425001Y (en) 1.5-MW permanent magnet direct-drive wind-driven power generator unit
CN205779476U (en) A kind of double-fed wind generating device
CN200987072Y (en) Wind power generation plant based on DC electric generator
CN204024920U (en) A kind of double-fed wind generating device
CN104426147A (en) Independent operation wind-power system provided with energy-storing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant