基于动态阻尼增强的VSG并联系统功率振荡抑制方法  

Power Oscillation Suppression Method for VSG Parallel System Based on Dynamic Damping Enhancement

作　　者：白文远 庄国峰 罗雪梅 赵秀珍 魏占宏 BAI Wenyuan;ZHUANG Guofeng;LUO Xuemei;ZHAO Xiuzheng;WEI Zhanhong(State Grid Gansu Electric Power Company,Lanzhou 730001,China;State Grid Gansu Electric Power Research Institute,Lanzhou 730012,China;Ultra High Voltage Company of State Grid Gansu Electric Power Company,Lanzhou 730012,China;College of Electrical and Information Engineering,Lanzhou University of Technology,Lanzhou 730050,China)

机构地区：[1]国网甘肃省电力公司,甘肃兰州730001 [2]国网甘肃电力科学研究院,甘肃兰州730012 [3]国网甘肃省电力公司超高压公司,甘肃兰州730012 [4]兰州理工大学电气工程与信息工程学院,甘肃兰州730050

出　　处：《智慧电力》2024年第11期16-22,113,共8页Smart Power

基　　金：国家自然科学基金资助项目(51767017)。

摘　　要：随着可再生能源的不断渗透,大量电力电子变换器通过虚拟同步机(VSG)技术来提供惯量支撑。针对多个VSG并联系统的有功功率振荡问题,提出一种基于动态阻尼增强的VSG并联系统功率振荡抑制方法。首先,建立多VSG的并联模型,分析系统有功功率振荡机理;然后,阐述所提控制方法原理,分析其功率振荡抑制机理;最后,通过仿真和实验验证了所提控制方法的正确性和有效性。With the continuous penetration of renewable energy,many power electronic converters are providing inertia support through virtual synchronous generator(VSG)technology.Targeting the problem of active power oscillation in multi-VSG parallel system,the paper proposes a power oscillation suppression method with dynamic damping enhancement for the VSG parallel system.Firstly,a parallel model of the multi-VSG is established to analyze the mechanism of the active power oscillation in the system.Then the principle of the proposed method is elaborated,and its power oscillation suppression mechanism is analyzed.Finally,the correctness and effectiveness of the proposed method are verified through simulations and experiments.

关 键 词：虚拟同步机 功率振荡 动态阻尼 

分 类 号：TM731[电气工程—电力系统及自动化]