Cooperative Voltage and Frequency Regulation of Permanent Magnet Synchronous Wind Turbine Based on Explicit Model Predictive Control

YAN Yichen; KOU Peng; ZHANG Yuanhang; LI Hua; LI Xudong; XIONG Weichen; LIANG Deliang

doi:10.7652/xjtuxb202408002

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Cooperative Voltage and Frequency Regulation of Permanent Magnet Synchronous Wind Turbine Based on Explicit Model Predictive Control

更新时间：2025-07-28

- Cooperative Voltage and Frequency Regulation of Permanent Magnet Synchronous Wind Turbine Based on Explicit Model Predictive Control
- Vol. 58, Issue 8, Pages: 9-18(2024)
- 作者机构：
  
  1. 西安交通大学电气工程学院,西安,710049
  2. 西安交通大学电工材料电气绝缘全国重点实验室,西安,710049
  3. 西安交通大学陕西省智能电网重点实验室,西安,710049
  4. 国网陕西省电力有限公司电力科学研究院,西安,710100
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202408002
  CLC： TM341
- Online First：10 August 2024，
  
  Published：2024
- 稿件说明：
移动端阅览
YAN Yichen, KOU Peng, ZHANG Yuanhang, et al. Cooperative Voltage and Frequency Regulation of Permanent Magnet Synchronous Wind Turbine Based on Explicit Model Predictive Control[J]. 2024, 58(8): 9-18.
DOI：

YAN Yichen, KOU Peng, ZHANG Yuanhang, et al. Cooperative Voltage and Frequency Regulation of Permanent Magnet Synchronous Wind Turbine Based on Explicit Model Predictive Control[J]. 2024, 58(8): 9-18. DOI： 10.7652/xjtuxb202408002.

摘要

为解决高压直流输电线路发生闭锁故障引起送端近区功率冗余、造成频率和电压升高的问题

提出了一种面向频率电压协同调节的永磁同步风电机组的显式模型预测控制(EMPC)策略。该控制策略利用了直驱式永磁同步风力发电机组具有同时调节电网频率和电压的能力。根据频率摆动方程和电压灵敏度模型建立了换流站母线电压和电网频率的状态空间模型; 将永磁同步风电机组的有功输出和无功输出相结合

利用多个EMPC控制器计算代价函数下的最优输出并进行组合

计算出故障后永磁同步风电机组的参考功率输出

以实现送端近区频率和电压的协同控制。在MATLAB/Simulink平台进行仿真验证表明:当闭锁故障发生时

EMPC控制策略不仅可以降低送端近区的频率和电压的峰值与稳态值

而且与其他控制方法相比

频率峰值降低了0.089 Hz

电压峰值降低了0.012(标幺值)。该研究可为电力系统的频率电压控制提供理论及工程参考。

Abstract

To solve the problem of power redundancy at the sending end caused by converter blocking on high-voltage direct current transmission lines

which results in frequency and voltage increases

this paper proposes an explicit model predictive control(EMPC)strategy for cooperative frequency and voltage regulation of permanent magnet synchronous wind turbines(PMSWTs). The control strategy takes advantage of the fact that PMSWTs have the ability to regulate the voltage of the converter station and grid frequency simultaneously at the sending end. First

the state space model of bus voltage and grid frequency at the converter station is established based on the frequency swing equation and voltage sensitivity model. Then

the active and reactive power outputs of the PMSWTs are combined

and multiple EMPC controllers are used to calculate the optimal outputs under the cost function

which are then combined to compute the reference power output of the PMSWTs after the converter blocking. Thus

the cooperative frequency and voltage regulation is achieved at the sending end. The simulation in MATLAB/Simulink shows that when the blocking occurs

the EMPC strategy reduces the peak and steady values of frequency and voltage at the sending end. Compared with other control methods

the proposed strategy reduces the peak frequency by 0.089 Hz and the peak voltage by 0.012 p.u.. This research can offer theoretical and engineering insights for frequency and voltage control in power systems.

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