欢迎访问《太阳能学报》官方网站,今天是 分享到:
ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (10): 275-280.DOI: 10.19912/j.0254-0096.tynxb.2021-0293

• • 上一篇    下一篇

基于无源控制策略的MMC-DVR控制系统

周雅婷1,2, 程启明1,2, 江畅1,2, 谢怡群1,2, 傅文倩1,2, 叶培乐1,2   

  1. 1. 上海电力大学自动化工程学院,上海 200090;
    2. 上海市电站自动化技术重点实验室,上海 200090
  • 收稿日期:2021-03-18 出版日期:2022-10-28 发布日期:2023-04-28
  • 通讯作者: 程启明(1965——),男,博士、教授,主要从事新能源发电控制、微网控制、电力变换器控制等方面的研究。chengqiming@sina.com
  • 基金资助:
    国家自然科学基金(61905139); 上海市电站自动化技术重点实验室资助项目(13DZ2273800)

MMC-DVR CONTROL SYSTEM BASED ON PASSIVITY CONTROL STRATEGY

Zhou Yating1,2, Cheng Qiming1,2, Jiang Chang1,2, Xie Yiqun1,2, Fu Wenqian1,2, Ye Peile1,2   

  1. 1. College of Automation Engineering, Shanghai University of Electric Power, Shanghai 200090, China;
    2. Shanghai Key Laboratory Power Station Automation Technology Laboratory, Shanghai 200090, China
  • Received:2021-03-18 Online:2022-10-28 Published:2023-04-28

摘要: 为了提高高压电网电压质量补偿效果,提出基于模块化多电平换流器(MMC)的动态电压调节器(DVR)系统的无源非线性控制方法。首先,介绍MMC-DVR的框图以及工作原理,根据基尔霍夫电压电流定律,分别构建abc静止与两相dq旋转坐标系下的数学模型;接着提出无源控制方法来解决问题;最终,在Matlab/Simulink软件实验平台上构建MMC-DVR系统,构建仿真验证无源非线性控制的可行性和优越性。与传统PID相比,无源策略能使系统迅速稳定,提高抗扰能力,采取阻尼注入,能快速、有效地对电压降落/升高和谐波进行补偿,并且无源非线性控制器控制规律简单,所需控制器数量少,可避免PI控制参数选择困难及繁复的缺点。

关键词: 风电场, 动态电压调节器, 无源控制, 模块化多电平转换器, 动态电压

Abstract: MMC-DVR combined with dynamic voltage regulator(DVR) and modular multilevel converter (MMC) can be used to solve the problem of sag/swell compensation for medium and high voltages. Since MMC-DVR is a non-linear system, the compensation effect of linear control methods such as PID commonly used in DVR systems is not satisfactory. To this end, this paper proposes a passive nonlinear control method for the MMC-DVR system, which can be deeply integrated in the wind farm grid-connected system, and can solve the negative problems such as power quality degradation. First, the circuit topology and working principle of MMC-DVR are introduced, and the mathematical model under the static and rotating coordinate system is established. Then, the passive control method is proposed to solve the problem. Finally, the MMC-DVR control system is built on Matlab/Simulink software experimental platform, and the experimental results verify the feasibility and superiority of the passive nonlinear control strategy proposed in this paper.

Key words: wind farm, dynamic voltage restorer (DVR), passivity-based control (PBC), modular multilevel converter, dynamic voltage

中图分类号: