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Tower lateral resistance increasing control method and system applied to wind generating set

A technology of wind power generators and control methods, which is applied in the control of wind power generators, the monitoring of wind power motors, and the combination of wind power motors, etc., which can solve problems such as large power fluctuations, large torque amplitudes, and loss of power generation, and achieve power Stable, reduce fatigue load, increase the effect of cost reduction space

Pending Publication Date: 2022-05-27
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this method has certain disadvantages, mainly because when the gain Kp is large, the superimposed torque amplitude including the tower vibration period will be too large, and the power fluctuation will be large during the full operation of the wind turbine, which is very Easy to cause the risk of overpower shutdown
In addition, large power fluctuations will also make the average power lower than the rated power, resulting in loss of power generation

Method used

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  • Tower lateral resistance increasing control method and system applied to wind generating set
  • Tower lateral resistance increasing control method and system applied to wind generating set
  • Tower lateral resistance increasing control method and system applied to wind generating set

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Embodiment 1

[0040] This embodiment discloses a tower lateral resistance control method applied to a wind turbine. First, the nacelle lateral vibration signal collected by the nacelle lateral vibration sensor is subjected to band-pass filtering to extract the tower lateral vibration signal, Then, the lateral vibration signal of the tower is passed through the integrator to obtain the lateral speed signal, which is used for the lateral resistance of the independent pitch and / or the lateral resistance of the torque, that is, the lateral resistance of the independent pitch or the lateral resistance of the torque. Add resistance to realize the lateral resistance control of the tower, or use the independent pitch and torque lateral resistance at the same time to realize the lateral resistance control of the tower;

[0041] For the lateral resistance addition of independent pitch, that is, to use independent pitch to add resistance, the operation is: the lateral speed signal is input to the PI co...

Embodiment 2

[0050] This embodiment discloses a tower lateral resistance control system applied to a wind turbine. The system extracts the tower lateral vibration signal by band-pass filtering the nacelle lateral vibration signal collected by the nacelle lateral vibration sensor. , and then pass the lateral vibration signal of the tower through the integrator to obtain the lateral velocity signal, which is used for the lateral resistance addition control of the tower by the independent pitch lateral resistance addition module and / or the torque lateral resistance addition module;

[0051] For the independent pitch-adding lateral resistance module, it uses independent pitching to add lateral resistance. The specific operations are as follows: Input the lateral speed signal to the PI controller to obtain the expected value of the blade angle in the fixed coordinate system, and then use the The azimuth angle of the impeller of the wind turbine is input into the main control PLC of the wind turb...

Embodiment 3

[0060] This embodiment discloses a storage medium that stores a program, and when the program is executed by a processor, the method for controlling the lateral resistance addition of a tower applied to a wind turbine in Embodiment 1 is implemented.

[0061] The storage medium in this embodiment may be a magnetic disk, an optical disk, a computer memory, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a U disk, a removable hard disk, and other media.

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Abstract

The invention discloses a tower lateral resistance increasing control method and system applied to a wind generating set, and the method comprises the steps: carrying out the band-pass filtering of a cabin lateral vibration signal, extracting a tower lateral vibration signal, enabling the tower lateral vibration signal to pass through an integrator, obtaining a lateral speed signal, and carrying out the independent variable pitch lateral resistance increasing and / or torque lateral resistance increasing. That is, tower lateral resistance increasing control is achieved through independent variable-pitch lateral resistance increasing or torque lateral resistance increasing, or tower lateral resistance increasing control is achieved through independent variable-pitch lateral resistance increasing and torque lateral resistance increasing at the same time. According to the method, the lateral vibration of the tower can be effectively restrained, the lateral fatigue load of the tower is reduced, and the unit reaches the optimal operation state.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a tower lateral resistance control method, system, storage medium and computing device applied to wind turbines. It is of great significance, which can greatly reduce the lateral fatigue load of the tower, and also has a good inhibitory effect on the lateral vibration of the engine room. Background technique [0002] The foundation of the wind turbine has only structural damping in the lateral direction, while the structural damping of the single pile and floating type is relatively small, so the fatigue load and lateral vibration of the tower My of the unit will be relatively large. [0003] In the existing technology, the torque is applied laterally to add resistance, and the lateral acceleration of the tower outputs additional torque through a series of filters and a proportional P controller, which is superimposed on the torque control. The torque is used to in...

Claims

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Application Information

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IPC IPC(8): F03D7/00F03D13/20F03D17/00F03D9/25
CPCF03D7/00F03D13/20F03D17/00F03D9/25F05B2270/328F05B2260/964F05B2270/334F05B2270/329F05B2270/705F05B2270/1032Y02E10/72
Inventor 赵晓峻任娜陈天宇萧家俊黄阳李卓伟于虹谭丹
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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