虛擬同步機技術(shù)在電力系統(tǒng)中的發(fā)展及應(yīng)用
沈天驕1，曾成1，王 琦1，2
（1 東南大學(xué) 電氣工程學(xué)院，江蘇 南京 210096；2 河南工學(xué)院 自動控制系，河南 新鄉(xiāng) 453003）
摘 要：虛擬同步機技術(shù)可以有效解決大量電力電子變換器接入電力系統(tǒng)帶來的欠阻尼和低慣量問題。概括了虛擬同步機技術(shù)的起源以及在各國的發(fā)展狀況，分析了虛擬同步發(fā)電機和虛擬同步電動機的拓撲結(jié)構(gòu)及工作原理，闡述了虛擬同步機技術(shù)在新能源并網(wǎng)、柔性直流輸電、電動汽車等中的具體應(yīng)用，指出其在優(yōu)化電力系統(tǒng)運行方式、實現(xiàn)新能源并網(wǎng)設(shè)備的即插即用等方面具有廣泛的應(yīng)用前景。
關(guān)鍵詞：虛擬同步機；同步電機；電力系統(tǒng)；虛擬慣量
中圖分類號：TM464 文獻標識碼：A 文章編號：1007-3175(2017)09-0006-05
Development and Application of Virtual Synchronous Machine Technologies in Power Systems
SHEN Tian-jiao1, ZENG Cheng1, WANG Qi1, 2
（1 School of Electrical Engineering, Southeast University, Nanjing 210096, China;
2 Department of Automation and Control, Henan Institute of Technology, Xinxiang 453003, China）
Abstract: Under-damped and low inertia problems caused by a large number of power electronic converters connected to power systems can be solved by virtual synchronous machine technologies. This paper illustrated the origin and development situation of virtual synchronous machine technologies, analyzed the topological structure and working principle of virtual synchronous generators and motors, and expounded the specific application of virtual synchronous machines in territories, such as new energy resources grid connected, voltage source converter based high voltage and electromobile, pointing out that this technology has the extensive application prospect in the fields such as optimal electric power system operation, plug and play of new energy grid connected equipment implement etc.
Key words: virtual synchronous machine; synchronous machine; power system; virtual inertia
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