微电网谐振建模与抑制方法的研究现状

总结了现有微电网谐振建模与抑制策略的国内外研究现状和发展动态。对微电网的谐振现象按阻抗网络谐振的主体进行3层分类,即单逆变器本体谐振、多逆变器交互的局部谐振和微电网层面的全局谐振,并详细探讨了不同层面的谐振建模与抑制策略的优点与不足。通过系统地总结和归纳现有的研究成果,指出了微电网谐波交互研究中需要解决的关键问题。

Research Status of Resonance Modeling and Suppressionin in Microgrid

This paper summarizes the domestic and foreign research status of resonance modeling and suppression methods in microgrid. According to the subjects involved in the harmonic resonance of impedance network, it is classified into three types of resonance, which are resonance within a single inverter, resonance among multiple paralleled inverters, and resonance due to the aggregated effect of inverters, loads, etc. in the microgrid. The advantages and disadvantages of resonance modeling and suppression are addressed in detail with respect to each of the resonance types. Main research results of the current methods are systematically reviewed, and the key problems harmonic interaction in microgrid that need to be solved are presented.