基于改进虚拟同步发电机控制的功率交互振荡抑制策略  

Power interactive oscillation suppression strategy based on improved virtual synchronous generator control

作　　者：贾焦心 秦本双 颜湘武[1] 陈一丹 杨添淇 JIA Jiaoxin;QIN Benshuang;YAN Xiangwu;CHEN Yidan;YANG Tianqi(Key Laboratory of Distributed Energy Storage and Microgrid of Hebei Province,North China Electric Power University,Baoding 071003,China;School of Electrical Engineering and Automation,Henan Polytechnic University,Jiaozuo 454003,China;Henan Key Laboratory of Intelligent Detection and Control of Coal Mine Equipment,Jiaozuo 454003,China;State Grid Shanghai Pudong Power Supply Company,Shanghai 200122,China)

机构地区：[1]华北电力大学分布式储能与微网河北省重点实验室,河北保定071003 [2]河南理工大学电气工程与自动化学院,河南焦作454003 [3]河南省煤矿装备智能检测与控制重点实验室,河南焦作454003 [4]国网上海浦东供电公司,上海200122

出　　处：《电力自动化设备》2024年第3期203-209,共7页Electric Power Automation Equipment

基　　金：国家自然科学基金资助项目(52207102);中央高校基本科研业务费专项资金资助项目(2022MS074)。

摘　　要：在指令功率发生扰动时,虚拟同步发电机控制环路易产生功率交互振荡,威胁系统的安全稳定运行。为此,提出一种基于改进虚拟同步发电机控制的功率交互振荡抑制策略。基于相对增益矩阵原理研究不同系统参数变化时虚拟同步发电机输出功率间交互作用的变化规律;采用转速阻尼功率高通反馈改进虚拟同步发电机有功功率-频率控制环路,并通过绘制Bode图对比传统虚拟同步发电机控制策略与改进虚拟同步发电机控制策略的暂态和稳态性能;利用相对增益矩阵原理分析改进虚拟同步发电机控制策略的有功功率环路交互作用情况。仿真及实验结果表明,所提策略可有效实现虚拟同步发电机交互振荡的抑制。When the command power is disturbed,the power interactive oscillation is easily produced in the control loop of virtual synchronous generator,threatening the safe and stable operation of the system.There-fore,a power interactive oscillation suppression strategy is proposed based on an improved virtual synchro-nous generator control.Based on the principle of relative gain array,the variation law of the output power interaction between virtual synchronous generators is researched when different system parameters change.The active power-frequency control loop of virtual synchronous generator is improved by high-pass feedback of rotating speed damping power,and the transient and steady state performances of traditional virtual syn-chronous generator control and improved virtual synchronous generator control strategies are compared by drawing Bode diagram.The relative gain array principle is used to analyze the active power loop interac-tion condition of the improved virtual synchronous generator control strategy.The simulative and experimen-tal results show that the proposed strategy can effectively suppress the interactive oscillation of the virtual synchronous generator.

关 键 词：构网型逆变器 相对增益矩阵 改进虚拟同步发电机 交互振荡 抑制 

分 类 号：TM712[电气工程—电力系统及自动化]