电气工程学报 ›› 2021, Vol. 16 ›› Issue (3): 17-24.doi: 10.11985/2021.03.003

• 电机与电器 • 上一篇    下一篇

扫码分享

虚拟同步发电机的参数自适应控制策略研究*

耿昊翔1(), 王维俊2(), 唐帅2, 张国平1, 米红菊1   

  1. 1.陆军勤务学院军事设施系 重庆 401331
    2.军事科学院系统工程研究院 北京 100000
  • 收稿日期:2021-05-07 修回日期:2021-06-23 出版日期:2021-09-25 发布日期:2021-10-29
  • 通讯作者: 王维俊 E-mail:4630173173@qq.com;wangwj666@126.com
  • 作者简介:* 王维俊,女,1964年生,研究员,博士研究生导师。主要研究方向为移动电源与多能源发电技术。E-mail: wangwj666@126.com
    耿昊翔,男,1994年生,硕士研究生,助理工程师。主要研究方向为多能源发电与电力电子。E-mail: 4630173173@qq.com
  • 基金资助:
    * 国家重点研发计划(2016YFC0305001);军内科研科学研究(ZXD2018C5008)

Research on Parameter Adaptive Control Strategy of Virtual Synchronous Generator

GENG Haoxiang1(), WANG Weijun2(), TANG Shuai2, ZHANG Guoping1, MI Hongju1   

  1. 1. Department of Military Installations, Army Logistics University of PLA, Chongqing 401331
    2. Academy of Systems Engineering, Academy of Military Sciences, Beijing 100000
  • Received:2021-05-07 Revised:2021-06-23 Online:2021-09-25 Published:2021-10-29
  • Contact: WANG Weijun E-mail:4630173173@qq.com;wangwj666@126.com

摘要:

虚拟同步发电机(Virtual synchronous generator, VSG)通过引入转动惯量(J)与阻尼系数(Dp)模拟同步发电机的机电特性,有效地提高了分布式电源接入电网的稳定性。由于VSG中的JDp可以动态调节,通过对VSG进行小信号模型分析,分析了JDp对系统动态性能的影响。根据功角特性曲线分析了振荡周期中JDp的整定原则,提出了一种参数自适应控制策略,建立了JDp的自适应控制函数,使VSG在功率和频率输出具有更加良好的动态性能。最后通过Matlab/Simulink搭建仿真模型进行验证,仿真结果验证了自适应控制策略的可行性。

关键词: 虚拟同步发电机, 转动惯量, 阻尼系数, 自适应

Abstract:

Virtual synchronous generator (VSG) simulates the mechanical and electrical characteristics of synchronous generator by introducing the moment of inertia (J) and damping coefficient (Dp), which effectively improves the stability of distributed power access to the grid. Since J and Dp in VSG can be dynamically adjusted, the influence of J and Dp on the system through small signal model analysis of VSG is analyzed. Then, according to the power angle characteristic curve, the setting principle of J and Dp in the oscillation period is analyzed, a parameter adaptive control strategy is proposed, and the adaptive control function of J and Dp is established, so that the VSG has better dynamic performance in power and frequency output. Finally, a simulation model is built by Matlab/Simulink to verify the feasibility of the adaptive control strategy.

Key words: Virtual synchronous generator, moment of inertia, damping coefficient, self-adaption

中图分类号: