微网多逆变器并联谐振与环流产生机理及抑制技术是亟需研究的重要基础课题。本课题围绕微网中多逆变器并联谐振与环流抑制关键科学问题，深入研究三个方面的内容：1)含多逆变器微网的基波域与谐波域等值电气模型；2）微网多逆变器并联谐振机理及其抑制方法。3）多逆变器并联基波与谐波环流产生机理及其抑制方法；期望揭示含多逆变器微网在基波与谐波域的内在特性，取得多逆变器并联谐振抑制方法、微网多逆变器并联基波与谐波抑制方法等创新性成果。本课题将推动分布式发电与微网基础理论研究的进步，为新能源发电的进一步推广提供理论与工程应用指导。

The mechanism of resonances, circulating current among multiple inverters in microgrid and its restraining methods are the fundamental research subjects needed to be solved . This research will focus on the key issues about parallel resonances and restraining circulalting current of multi-inverter in microgrid. And study has three aspects of science contents need to be explored in-depth: 1) the equivalent electrical model of multiple inverters in fundamental and harmonic domain; 2）the mechanism of parallel resonances among multiple inverters and its damping methods; 3）the mechanism of fundamental and harmonic circulalting current and its restraining methods. We expected to reveal the intrinsic properities of inverter equivalent model in microgrid. Moreover, we planned to obtain some innovative achievements of the restraining methods in parallel resonance and in fundamental and harmonic circulating current. This project will promote the progress of the fundamental theory research in distributed generation and microgrid, and it will directly provide theoretical and practical guidances for the application of renewable energy generation.