【作者】 周诗嘉； 林卫星； 文劲宇；

【Author】 ZHOU Shijia;LIN Weixing;WEN Jinyu;WANG Shaorong;State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology);

【机构】 强电磁工程与新技术国家重点实验室(华中科技大学)；

【摘要】 本文提出了基于谐波等值电路与快速仿真模型的MM交流侧谐波分析方法。论文首先总结了IEC/TR62001标准中涉及交流谐波的各项谐波计算指标,进而推导了MMC的交流侧谐波等值电路,根据MMC交流输出的阶梯波特性,提出了一种基于多个方波叠加的MMC交流谐波简化分析方法。针对利用MMC详细电磁暂态仿真模型进行谐波分析仿真速度太慢的问题,提出了一种利用MMC快速模型进行MMC谐波分析方法。论文最后在PSCAD/EMTDC下对基于Matlab的谐波解析分析进行了仿真验证。更多还原

【Abstract】 A method of using equivalent harmonic circuit and fast numerical simulation model for AC harmonic analysis of MMC is proposed in this paper.The major harmonic performance criteria are firstly summarized according to the standard IEC/TR62001.An equivalent harmonic circuit for MMC is then derived.Based on the ladder-wave characteristics of the inner EMF of MMC,a simple method of treating the ladder-wave as multiple superimposed square-wares is derived for theoretically calculating the harmonic characteristics.To overcome the time-consuming problem of analyzing MMC harmonic using detailed switching model,a method of using fast numerical simulation model for harmonic analyzing is proposed.Comparisons of the simulations on PSCAD/EMTDC and the theoretical results from Matlab verified the proposed methods.更多还原