上海交通大学学报

上海交通大学学报 >

2024 , Vol. 58 >Issue 12: 1968 - 1976

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2023.159

新型电力系统与综合能源

电网故障下永磁直驱风电机组并网电流的自抗扰控制

  • 王晗 ,
  • 王富文 ,
  • 周党生 ,
  • 施刚 ,
  • 张建文 ,
  • 蔡旭
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  • 1.上海交通大学 电力传输与功率变换控制教育部重点实验室,上海 200240
    2.鲁能新能源(集团)有限公司,北京 100020
    3.深圳市禾望电气股份有限公司,广东 深圳 518055
王 晗(1982—),助理研究员,现从事新能源电力变换控制技术研究.
张建文,研究员,博士生导师,电话(Tel.): 021-34207001;E-mail: icebergzjw@sjtu.edu.cn.

收稿日期: 2023-04-28

  修回日期: 2023-07-19

  录用日期: 2023-07-24

  网络出版日期: 2023-11-08

基金资助

台达电力电子科教发展计划基金(DREG2022009);上海交通大学“新进青年教师启动计划”(22X010500326)

收起

Active Disturbance Rejection Control of Current of Direct Drive Wind Turbine in Power Grid Fault

  • WANG Han ,
  • WANG Fuwen ,
  • ZHOU Dangsheng ,
  • SHI Gang ,
  • ZHANG Jianwen ,
  • CAI Xu
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  • 1. Key Laboratory of Control of Power Transmission and Conversion of the Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China
    2. Luneng New Energy (Group) Co., Ltd., Beijing 100020, China
    3. Shenzhen Hewang Electric Co., Ltd., Shenzhen 518055, Guangdong, China

Received date: 2023-04-28

  Revised date: 2023-07-19

  Accepted date: 2023-07-24

  Online published: 2023-11-08

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摘要

电网并网导则要求风电机组在电网故障时具备快速无功支撑能力,采用传统比例积分控制器控制的直驱风力机在应对电网阻抗变化和模型严重扰动时存在暂态响应速度慢、适应性差的问题.针对该问题,提出一种改进的线性自抗扰控制器与最小方差滤波器相结合的无功支撑控制策略.采用最小方差滤波器快速精准检测含背景谐波的故障电网电压幅值,可有效减小故障检测延时;利用线性自抗扰控制器有效提升机组暂态无功响应速度及其在电网阻抗扰动下的控制适应性和鲁棒性.搭建基于PSCAD/EMTDC软件的直驱风力机仿真模型,考虑弱电网和电网含背景谐波两种场景,对提出控制策略的暂态支撑有效性进行了仿真验证.

关键词： 直驱风电机组; 电网故障; 自抗扰控制; 最小方差滤波器

本文引用格式

王晗 , 王富文 , 周党生 , 施刚 , 张建文 , 蔡旭 . 电网故障下永磁直驱风电机组并网电流的自抗扰控制[J]. 上海交通大学学报, 2024 , 58(12) : 1968 -1976 . DOI: 10.16183/j.cnki.jsjtu.2023.159

Abstract

The grid connection guidelines require wind turbines to have capability to quickly support reactive power in the events of grid faults. However, traditional proportional-integral controllers have the problems of slow transient response and poor adaptability dealing with changes in grid impedance and serious model disturbances. In order to solve this problem, this paper proposes an improved reactive power support control strategy which combines linear active disturbance rejection control(ADRC) with least error squares(LES) filters. The LES filter is used to quickly and accurately detect the amplitude of the fault grid voltage with background harmonics, which can effectively reduce the fault detection delay. The ADRC controller is used to effectively improve the transient reactive power response speed and the control adaptability and robustness of the wind turbines under grid impedance disturbance. The simulation model of direct drive wind turbine based on PSCAD/EMTDC is built considering two scenarios, weak power grid and power grid with background harmonics. The effectiveness of the proposed control strategy is verified by simulation.

Key words： direct drive wind turbine; grid faults; active disturbance rejection control (ADRC); least error squares (LES) filter

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