新型电力系统下虚拟同步机的定位和应用前景展望  

Orientation and Application Prospect of Virtual Synchronous Generator in New Power System

作　　者：曹炜 钦焕乘 陆建忠 何必伦 庄侃沁 励刚 CAO Wei;QIN Huancheng;LU Jianzhong;HE Bilun;ZHUANG Kanqin;LI Gang(College of Electrical Engineering,Shanghai University of Electric Power,Shanghai 200090,China;East China Branch of State Grid Corporation of China,Shanghai 200120,China)

机构地区：[1]上海电力大学电气工程学院,上海市200090 [2]国家电网有限公司华东分部,上海市200120

出　　处：《电力系统自动化》2023年第4期190-207,共18页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51807114)。

摘　　要：随着“碳达峰·碳中和”目标的提出,未来电网日益凸显的“高比例可再生能源、高比例电力电子设备”问题显著影响系统安全稳定运行。虚拟同步机(VSG)技术可以使以电力电子逆变器为接口的新能源设备具备类似同步机的电网支撑能力,因而得到广泛关注。文中首先梳理了构网型电源和跟网型电源,并介绍了VSG原理、作用和国内外应用情况。其次,梳理VSG对电力系统稳定性的影响以及限流对系统运行的影响。最后,从辅助服务角度对VSG在新型电力系统下的定位进行分析,在大电网、配电网、微电网层面对VSG的应用提出构想,并对VSG发展和后续研究提出相应建议。With the proposed goal of “carbon emission peaking and carbon neutrality”, the increasingly prominent problem of “high proportion of renewable energy and high proportion of power electronic equipment” in the future power grid will significantly impact the safe and stable operation of the system. Virtual synchronous generator(VSG) technology can make the new energy equipment with the power electronic inverter as the interface have the power grid support capability similar to the synchronous generator, which has attracted wide attention. Firstly, this paper combs the grid-forming source and grid-following source, and introduces the principle, function and application of VSG at home and abroad. Secondly, combing the influence of VSG on the stability of the power system and the influence of current limitation on system operation. Finally, the role of VSG in the new power system is analyzed from the perspective of the auxiliary service, and the application of VSG is conceived on the levels of large power grid, distribution network and microgrid. The corresponding suggestions are also put forward for the development and follow-up research of VSG.

关 键 词：新型电力系统 虚拟同步机 稳定性 限流 辅助服务 

分 类 号：TM341[电气工程—电机]