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A New Harmonic Optimization Strategy for Modular Multilevel Converters

This paper proposes a new harmonic optimization strategy for Modular Multilevel Converter (MMC). To verify the strategy, a typical offshore wind power DC integration using MMC model is established in the software PSCAD/EMTDC, and the total harmonic distortion (THD) of the point of common coupling (PCC) is compared before and after using the new harmonic optimization strategy. Simulation results show the effectiveness of the optimization strategy.