考虑多类型主导模式的直驱风电/光伏经柔直送出系统近工频振荡特性分析

刘辉; 董文凯; 王潇; 李蕴红; 邓晓洋; 任怡娜; 谢小荣

doi:10.19725/j.cnki.1007-2322.2024.0076

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考虑多类型主导模式的直驱风电/光伏经柔直送出系统近工频振荡特性分析

新能源电力系统 | 更新时间：2026-06-02

- 考虑多类型主导模式的直驱风电/光伏经柔直送出系统近工频振荡特性分析
- Characteristic Analysis of Near-fundamental-frequency Oscillations in a PMSG/ PV Integrated System via MMC-HVDC Considering Multitype Dominant Modes
- 现代电力 2026年43卷第3期页码：509-517
- 作者机构：
  
  1. 华北电力科学研究院有限责任公司, 北京市西城区,100045
  2. 新型电力系统运行与控制全国家重点实验室(清华大学), 北京市海淀区,100084
- 作者简介：
  
  刘辉(1975)，男，博士，教授级高级工程师，研究方向为新能源并网技术，E-mail：liuhtj@163.com
  董文凯(1992)，男，博士，助理研究员，研究方向为电力系统稳定性分析与控制，E-mail：596167281@qq.com
  王潇(1987)，男，博士，高级工程师，研究方向为电力系统实时仿真控制，E-mail：wangxiao2017@foxmail.com
  李蕴红(1988)，女，硕士，高级工程师，研究方向为新能源并网技术，E-mail：13260208572@163.com
  邓晓洋(1989)，男，博士，高级工程师，研究方向为电力系统可靠性，E-mail：14117389@bjtu.edu.cn
  任怡娜(1993)，女，博士，高级工程师，研究方向为新能源并网运行与控制，E-mail：renynnn@163.com
  谢小荣(1975)，男，博士，教授，研究方向为电力系统振荡分析与控制，E-mail：xiexr@tsinghua.edu.cn
- 基金信息：
  
  国家杰出青年科学基金项目(51925701);华北电力科学研究院有限责任公司科技项目(KJZ2022056)。
- DOI：10.19725/j.cnki.1007-2322.2024.0076
  中图分类号： 3
- 纸质出版：2026
- 稿件说明：
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刘辉, 董文凯, 王潇, 等. 考虑多类型主导模式的直驱风电/光伏经柔直送出系统近工频振荡特性分析[J]. 现代电力, 2026,43(3):509-517.

LIU Hui, DONG Wenkai, WANG Xiao, et al. Characteristic Analysis of Near-fundamental-frequency Oscillations in a PMSG/ PV Integrated System via MMC-HVDC Considering Multitype Dominant Modes[J]. 2026, 43(3): 509-517.
刘辉, 董文凯, 王潇, 等. 考虑多类型主导模式的直驱风电/光伏经柔直送出系统近工频振荡特性分析[J]. 现代电力, 2026,43(3):509-517. DOI： 10.19725/j.cnki.1007-2322.2024.0076.

LIU Hui, DONG Wenkai, WANG Xiao, et al. Characteristic Analysis of Near-fundamental-frequency Oscillations in a PMSG/ PV Integrated System via MMC-HVDC Considering Multitype Dominant Modes[J]. 2026, 43(3): 509-517. DOI： 10.19725/j.cnki.1007-2322.2024.0076.

摘要

近年来，直驱风电/光伏经柔直送出系统出现多起频率在40~60

Hz范围的近工频振荡事件，其诱因与特性尚未完全明确，造成振荡控制研究难以深入开展。针对这一问题，首先建立直驱风电/光伏经柔直送出系统状态空间模型；然后，在变流器外环、内环和锁相环控制参数典型取值范围内，发掘系统潜在近工频主导振荡模式；进而，基于根轨迹和参与因子发现系统存在两类近工频主导模式，分别与直驱风电/光伏并网逆变器锁相环和直流电压外环动态强相关，且二者均与柔直交流电压外环动态强相关，强相关控制环节积分系数设置，是造成振荡频率靠近工频的根本原因。最后，基于时域仿真，验证了上述结论的有效性。

Abstract

Recently

a new-type 40~60

Hz near-fundamental- frequency oscillation has been observed in PMSG/PV integrated systems via MMC-HVDC. The causes and characteristics remain unclear

posing great challenges for conducting deep research on oscillation control. Focusing on this gap

a state-space model for the PMSG/PV integrated system via MMC-HVDC is built in this paper first. Secondly

potential near-fundamental-frequency dominant oscillation modes of the system are explored by considering the typical ranges for control parameters of the outer loop as well as the inner loop and phase-lock loop of power converters. Then

based o

n the root locus and participation factors

it is found that there exist two types of near-fundamental-frequency dominant modes. One mode is strongly associated with the dynamics of phase-lock loops of PMSG/PV converters

while the other is strongly correlated with the dynamics of DC voltage outer loops. Besides

both types of modes are highly correlated with the dynamics of the AC voltage outer loop of the MMC. The setting of integral coefficients of the strongly correlated control loops is the root cause of the oscillation occurring at frequencies near the fundamental frequency. Finally

the effectiveness of the conclusions obtained is verified through time-domain simulation.

关键词

Keywords

references

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