含惯量控制的高渗透率风电接入交直流混联输电系统的稳定性分析  

Stability Analysis of High Permeability Wind Power with Inertial Control Connected to AC-DC Hybrid Transmission System

作　　者：曾令全 王栋 黄云辉[1] 汤瑞阳 邓翔天 朱国荣[1] ZENG Lingquan;WANG Dong;HUANG Yunhui;TANG Ruiyang;DENG Xiangtian;ZHU Guorong(School of Automation,Wuhan University of Technology,Wuhan 430070,Hubei Province,China)

机构地区：[1]武汉理工大学自动化学院,湖北省武汉市430070

出　　处：《现代电力》2022年第4期406-413,共8页Modern Electric Power

基　　金：国家自然科学基金资助项目(51777146);湖北省自然科学基金青年项目(2020CFB135)。

摘　　要：为研究高渗透率风电接入交直流混联输电系统的稳定性,首先建立含惯量控制的双馈风机接入附加频率限制控制器的交直流混联系统的低频振荡分析模型。分析含惯量控制的双馈风电机组在不同渗透率下对交直流混联电网区域间振荡模式的影响,进一步分析直流输电系统频率限制控制的投入对系统阻尼特性和频率特性的影响规律。研究结果表明高渗透率下双馈风机惯量控制和直流输电系统频率限制控制能够增大系统阻尼,抑制低频振荡。在Matlab/Simulink中搭建时域仿真,对分析结果进行了验证。To research the stability under the condition of connecting high-permeability wind power in AC-DC hybrid power transmission system,firstly,a low-frequency oscillation analysis model,in which the doubly-fed induction generator(abbr.DFIG)containing inertial control was connected in the AC-DC hybrid system with frequency limit control(abbr.FCL),was established.Secondly,the influence of the DFIG unit containing inertial control on the inter-area oscillation mode of AC-DC hybrid network under different permeabilities was analyzed.Thirdly,the influence rule of putting frequency limit controller for DC transmission system into operation on both system damping characteristic and frequency characteristic was analyzed.Research results show that adopting inertia control of DFIG and FLC of HVDC transmission system under high permeabilities could increase system damping and suppress low-frequency oscillation.Finally,above-mentioned results of stability analysis are verified by time-domain simulation by Matlab/Simulink software.

关 键 词：惯量控制 高渗透率 频率限制控制 双馈风机 交直流混联系统 稳定性分析 

分 类 号：TM72[电气工程—电力系统及自动化]