CN114337425A - Wind turbine generator torque compensation control method and system based on rotating speed acceleration - Google Patents
Wind turbine generator torque compensation control method and system based on rotating speed acceleration Download PDFInfo
- Publication number
- CN114337425A CN114337425A CN202111507038.4A CN202111507038A CN114337425A CN 114337425 A CN114337425 A CN 114337425A CN 202111507038 A CN202111507038 A CN 202111507038A CN 114337425 A CN114337425 A CN 114337425A
- Authority
- CN
- China
- Prior art keywords
- generator
- rotating speed
- torque
- wind turbine
- acceleration
- 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.)
- Pending
Links
- 230000001133 acceleration Effects 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention discloses a wind turbine generator torque compensation control method and a wind turbine generator torque compensation control system based on rotating speed acceleration, wherein a compensation torque instruction calculated based on the rotating speed acceleration is superposed on the basis of traditional torque control, and when the rotating speed of a generator of a wind turbine generator rapidly rises, the rotating speed acceleration of the generator is reduced and the rising speed of the rotating speed is slowed down by superposing a total torque instruction which is positive; when the rotating speed of the generator of the wind turbine generator system is reduced, the reducing speed of the rotating speed of the generator is reduced by superposing a total torque instruction which is a negative number, so that the possibility of large change of the rotating speed of the generator is eased, and the aim of stabilizing the rotating speed is fulfilled; the invention can optimize the rotation speed fluctuation of the wind turbine generator in the operation process and lead the wind turbine generator to better track the pneumatic change.
Description
Technical Field
The invention relates to the technical field of wind turbine torque control, in particular to a wind turbine torque compensation control method and system based on rotating speed acceleration.
Background
The current wind turbine generator set rotating speed control mode comprises torque control and variable pitch control, wherein the torque control mainly controls the rotating speed below rated power, and the rotating speed is controlled by the variable pitch control after the generator set reaches the rated power. At present, the traditional PI control is mostly adopted for torque control, and the given output torque is calculated by taking the error between the given rotating speed and the feedback rotating speed as the input of a controller.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a wind turbine generator torque compensation control method and system based on rotating speed acceleration.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a wind turbine generator torque compensation control method based on rotating speed acceleration is characterized in that a compensation torque instruction based on a rotating speed acceleration compensator is added in generator electromagnetic torque control of a wind turbine generator, and the compensation torque instruction is superposed on an electromagnetic torque instruction T1 output by a traditional PI controller, so that rotating speed fluctuation in the running process of the wind turbine generator is stabilized.
Further, the method comprises the following steps:
s1, setting the given rotating speed omega of the generator of the wind turbine generatorgset；
S2, feeding back the rotating speed omega to the generatorgWith a given rotational speed omega of the generatorgsetThe deviation is controlled by the traditional PI torque control link
Outputting an electromagnetic torque command T1 of the generator;
s3, according to the feedback rotation speed omega of the generatorgCalculating the acceleration of the rotation speed of the generator
S4 acceleration according to the rotation speed of the generator
Passing speed acceleration compensator
Outputting a compensated torque command
S5, electromagnetic torque command T1 and compensation torque command of generator
And superposing to generate a total torque control command Tedemand.
Further, in step S4, the following operations are specifically performed:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
The invention provides a wind turbine generator torque compensation control system based on rotating speed and acceleration, which comprises:
the input module is used for inputting the given rotating speed of the generator of the wind turbine generator;
the traditional PI torque controller outputs an electromagnetic torque instruction T1 of the generator according to the given rotating speed of the generator and the feedback rotating speed of the generator;
the rotating speed acceleration compensator outputs a compensation torque instruction of the generator according to the feedback rotating speed of the generator;
the given torque calculation module calculates a total command for given torque of the generator according to the electromagnetic torque command T1 of the generator and the compensation torque command.
Further, the rotational speed and acceleration compensator specifically performs the following operations:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, compensation torque calculated based on the rotating speed acceleration is superposed on the basis of traditional torque control so as to optimize the rotating speed fluctuation of the wind turbine generator in the operation process and enable the wind turbine generator to better track the pneumatic change, when the rotating speed of a generator of the wind turbine generator rapidly rises, the rotating speed acceleration of the generator is reduced and the rising speed of the rotating speed is slowed down by superposing a total torque instruction which is positive; when the rotating speed of the generator of the wind turbine generator system is reduced, the reducing speed of the rotating speed of the generator is reduced by superposing a negative total torque instruction, the possibility that the rotating speed of the generator is greatly changed is eased by the way, and the purpose of stabilizing the rotating speed is realized.
Drawings
FIG. 1 is a flow chart diagram of a wind turbine generator torque compensation control method.
Fig. 2 is a schematic block diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Referring to fig. 1, the method for controlling torque compensation of a wind turbine generator based on rotational speed and acceleration provided by this embodiment is to add a compensation torque command based on a rotational speed and acceleration compensator to the electromagnetic torque control of a generator of the wind turbine generator, and superimpose the compensation torque command on an output electromagnetic torque command T1 of a conventional PI controller, so as to stabilize rotational speed fluctuation in the operation process of the wind turbine generator, and includes the following steps:
s1, setting the given rotating speed omega of the generator of the wind turbine generatorgset；
S2, feeding back the rotating speed omega to the generatorgWith a given rotational speed omega of the generatorgsetThe deviation is controlled by the traditional PI torque control link
Outputting an electromagnetic torque command T1 of the generator;
s3, according to the feedback rotation speed omega of the generatorgCalculating the acceleration of the rotation speed of the generator
S4 acceleration according to the rotation speed of the generator
Passing speed acceleration compensator
Outputting a compensated torque command
Specifically, the following operations are performed:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
S5, electromagnetic torque command T1 and compensation torque command of generator
And superposing to generate a total torque control command Tedemand.
Referring to fig. 2, a schematic block diagram of the present invention is shown, wherein V is wind speed,
for the transfer function of the electromagnetic torque command to the torque feedback,
as a function of the transfer of wind speed to aerodynamic torque,
is a transfer function of the difference between the aerodynamic torque and the electromagnetic torque to the rotational speed of the generator, deltat is the torque increment,
is a conventional torque PI torque controller.
The following is a wind turbine generator torque compensation control system based on rotational speed and acceleration provided by this embodiment, including:
the input module is used for inputting the given rotating speed of the generator of the wind turbine generator;
the traditional PI torque controller outputs an electromagnetic torque instruction T1 of the generator according to the given rotating speed of the generator and the feedback rotating speed of the generator;
the rotating speed acceleration compensator outputs a compensation torque instruction of the generator according to the feedback rotating speed of the generator, and specifically executes the following operations:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
The given torque calculation module calculates a total command for given torque of the generator according to the electromagnetic torque command T1 of the generator and the compensation torque command.
The system can be compiled on a software platform, and a dynamic link library (. dll) which can be called by wind turbine generator simulation software is generated, so that the result can be simulated, calculated and checked, the fluctuation conditions of the rotating speed, torque and power of a generator of the wind turbine generator are observed, whether the load of the wind turbine generator is correspondingly increased is checked, and the purpose of stabilizing the rotating speed of the wind turbine generator is achieved.
The above-described embodiments are only preferred embodiments of the present invention, and not intended to limit the scope of the present invention, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and as included within the scope of the present invention.
Claims (5)
1. A wind turbine generator torque compensation control method based on rotation speed acceleration is characterized in that: according to the method, a compensation torque instruction based on a rotating speed acceleration compensator is added in the control of the electromagnetic torque of a generator of the wind turbine generator, and the compensation torque instruction is superposed on an output electromagnetic torque instruction T1 of a traditional PI controller, so that the rotating speed fluctuation of the wind turbine generator in the operation process is stabilized.
2. The wind turbine generator torque compensation control method based on the rotating speed and the acceleration is characterized by comprising the following steps of:
s1, setting the given rotating speed omega of the generator of the wind turbine generatorgset；
S2, feeding back the rotating speed omega to the generatorgWith a given rotational speed omega of the generatorgsetThe deviation is controlled by the traditional PI torque control link
Outputting an electromagnetic torque command T1 of the generator;
s3, according to the feedback rotation speed omega of the generatorgCalculating the acceleration of the rotation speed of the generator
S4 acceleration according to the rotation speed of the generator
Passing speed acceleration compensator
Outputting a compensated torque command
S5, electromagnetic torque command T1 and compensation torque command of generator
And superposing to generate a total torque control command Tedemand.
3. The wind turbine generator torque compensation control method based on the rotating speed and the acceleration according to claim 2, characterized in that in step S4, the following operations are specifically executed:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
4. The utility model provides a wind turbine generator system torque compensation control system based on rotational speed acceleration which characterized in that includes:
the input module is used for inputting the given rotating speed of the generator of the wind turbine generator;
the traditional PI torque controller outputs an electromagnetic torque instruction T1 of the generator according to the given rotating speed of the generator and the feedback rotating speed of the generator;
the rotating speed acceleration compensator outputs a compensation torque instruction of the generator according to the feedback rotating speed of the generator;
the given torque calculation module calculates a total command for given torque of the generator according to the electromagnetic torque command T1 of the generator and the compensation torque command.
5. The wind turbine generator torque compensation control system based on the rotating speed and the acceleration as claimed in claim 4, wherein the rotating speed and the acceleration compensator specifically performs the following operations:
output compensation torque instruction of rotating speed and acceleration compensator
Comprises the following steps:
wherein a is a gain coefficient and is a positive number,
j is the moment of inertia translated to the low speed shaft for generator speed acceleration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507038.4A CN114337425A (en) | 2021-12-10 | 2021-12-10 | Wind turbine generator torque compensation control method and system based on rotating speed acceleration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111507038.4A CN114337425A (en) | 2021-12-10 | 2021-12-10 | Wind turbine generator torque compensation control method and system based on rotating speed acceleration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114337425A true CN114337425A (en) | 2022-04-12 |
Family
ID=81051419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111507038.4A Pending CN114337425A (en) | 2021-12-10 | 2021-12-10 | Wind turbine generator torque compensation control method and system based on rotating speed acceleration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114337425A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550945A (en) * | 2008-03-31 | 2009-10-07 | 上海浪腾工业自动化有限公司 | Method and system for high-power blower variable-pitch control |
| CN103296961A (en) * | 2012-02-22 | 2013-09-11 | 华锐风电科技(集团)股份有限公司 | Control method and system for restraining vibration of offshore wind turbine generator set |
| CN103375332A (en) * | 2012-04-17 | 2013-10-30 | 北京能高自动化技术股份有限公司 | Dynamic optimization method for optimal resisting moment in variable-speed variable-pitch wind generating unit |
| CN103835878A (en) * | 2013-04-07 | 2014-06-04 | 南京理工大学 | Maximum power point tracing control method based on neural network optimization starting rotating speed |
| JP2017057787A (en) * | 2015-09-16 | 2017-03-23 | 株式会社明電舎 | Wind power generation system and control method of wind power generation |
-
2021
- 2021-12-10 CN CN202111507038.4A patent/CN114337425A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550945A (en) * | 2008-03-31 | 2009-10-07 | 上海浪腾工业自动化有限公司 | Method and system for high-power blower variable-pitch control |
| CN103296961A (en) * | 2012-02-22 | 2013-09-11 | 华锐风电科技(集团)股份有限公司 | Control method and system for restraining vibration of offshore wind turbine generator set |
| CN103375332A (en) * | 2012-04-17 | 2013-10-30 | 北京能高自动化技术股份有限公司 | Dynamic optimization method for optimal resisting moment in variable-speed variable-pitch wind generating unit |
| CN103835878A (en) * | 2013-04-07 | 2014-06-04 | 南京理工大学 | Maximum power point tracing control method based on neural network optimization starting rotating speed |
| JP2017057787A (en) * | 2015-09-16 | 2017-03-23 | 株式会社明電舎 | Wind power generation system and control method of wind power generation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110219774B (en) | Nacelle suspension control method for horizontal axis wind power yaw system | |
| CN111731490B (en) | Helicopter comprehensive control method and device with variable rotor rotation speed | |
| CN203061919U (en) | High-speed high-precision multi-shaft PCB numerical control drill press | |
| CN105071723A (en) | Brushed direct current motor compound control method design by three-step approach | |
| CN101550945B (en) | Method and system for high-power blower variable-pitch control | |
| CN102410138B (en) | Method for acquiring optimal control input of wind generating set | |
| Wang et al. | Second-order terminal sliding-mode speed controller for induction motor drives with nonlinear control gain | |
| CN102493883B (en) | Computer control method for constant power output of diesel engine of diesel locomotive | |
| CN112594069B (en) | Turboshaft engine anti-interference control method and device based on power demand prediction | |
| CN114337425A (en) | Wind turbine generator torque compensation control method and system based on rotating speed acceleration | |
| CN113014167A (en) | Permanent magnet motor nonsingular terminal sliding mode control method based on disturbance observer | |
| CN109861618B (en) | Construction method of anti-interference composite controller of BSG alternating current motor for hybrid electric vehicle | |
| CN109802416B (en) | Method for improving DEH primary frequency modulation performance of steam turbine generator unit | |
| CN111478365A (en) | Optimization method and system for control parameters of virtual synchronizer of direct-drive wind turbine generator | |
| CN104135207B (en) | A kind of grid-connected combined optimization control method of large-scale double-fed wind power generator | |
| CN115306637A (en) | Variable pitch drive system, variable pitch driver and master-slave motor drive method | |
| CN115276084A (en) | Fuzzy PID and hybrid energy storage cooperative control method applied to black start of diesel generator of hydropower station | |
| CN114400718A (en) | Active power tracking control method for virtual synchronous machine | |
| CN112709859A (en) | Valve opening control method and device, electronic equipment and storage medium | |
| CN112072678A (en) | Primary frequency modulation control method for wind turbine generator | |
| CN105337543A (en) | Method for controlling output power of rotor side of double-fed draught fan | |
| CN112134296A (en) | Three-level static var generator with auxiliary voltage sharing and voltage sharing method thereof | |
| CN114142539B (en) | Rapid frequency response control method for new energy power generation equipment | |
| CN114109718B (en) | Load control method for wind turbine generator in shutdown state | |
| CN117072376A (en) | Double wind wheel wind turbine running control method |
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 |