Abstract
Virtual synchronous generators (VSGs) utilizing renewable energy sources (RESs) have been proven to be an appealing solution for overcoming the challenges of renewable energy sources (RESs) consumption in power systems. In order to address these issues, researches have been developed to improve the dynamic characteristics of VSG power systems. However, most of the studies at home and abroad focus on the negative impact of VSGs on the grid voltage, and few on the frequency, safety and efficiency of VSGs. The first part of this paper focuses on the VSG’s electromagnetic detail model with the ability to support the system voltage and frequency deviations, the second part discusses the mathematical investigation on its response as a VSG. Finally, according to the technical requirements of the power grid, mechanical and electromagnetic loads are simulated, the influence of service life is analyzed, and design suggestions are put forward.
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