基于PIR控制器的CSC-DPMSG-WGS低电压穿越控制

ZHANG Liuchen

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基于PIR控制器的CSC-DPMSG-WGS低电压穿越控制

更新时间：2025-08-13

- 基于PIR控制器的CSC-DPMSG-WGS低电压穿越控制
- Automation of Electric Power Systems Vol. 41, Issue 14, Pages: 153-158(2017)
- 作者机构：
  
  合肥工业大学教育部光伏系统工程研究中心,安徽省,合肥市,230009
- 作者简介：
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- Published：2017
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ZHANG Liuchen. [J]. Automation of electric power systems, 2017, 41(14): 153-158.
DOI：

ZHANG Liuchen. [J]. Automation of electric power systems, 2017, 41(14): 153-158. DOI：

摘要

提出了一种基于比例—积分—谐振(PIR)控制器，且适用于电流源型永磁直驱风力发电系统(CSC-DPMSG-WGS)的低电压穿越运行控制方案。根据所提出的方法，电网故障时，通过机侧变换器控制来限制风力发电机的电磁功率，以实现机侧和网侧的功率平衡；网侧控制器在正序旋转坐标系下采用PIR控制器同时对正负序电流进行无差控制，以消除两倍基频的功率波动，进而稳定直流电流。仿真与实验结果表明，所提出的控制方案在电网对称及不对称故障下均可有效降低直流电流波动，并实现电流源型永磁直驱风力发电系统的低电压穿越。

Abstract

A novel low voltage ride-through(LVRT)control scheme based on proportional-integral-resonant(PIR)controller and also applicable to current source converter based direct-drive permanent magnet synchronous generator(PMSG)wind generation system(CSC-DPMSG-WGS)is proposed. Based on the proposed method

once unbalanced grid voltage dip happens

the generator-side converter will quickly limit the power which flows to the DC-link to coordinate the grid-side and generator-side power. Meanwhile the grid-side converter adopts the PIR controller to control the positive and negative sequence current simultaneously in the positive sequence rotating coordinate system. This is intended to eliminate the power fluctuation of twice the fundamental frequency caused by unbalanced grid fault and maintain DC current stability. It is proved by simulation and experimental results that the proposed control strategy can eliminate the fluctuation of DC current and realize LVRT during balanced and unbalanced dip faults.

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