电网技术2017，Vol.41Issue(9)：2847-2853,7.DOI:10.13335/j.1000-3673.pst.2016.3142
应用于复杂交直流网络的箝位双子模块型MMC快速仿真模型
Efficient Simulation Model of MMC With Clamp Double Sub-Module for Complex AC and DC Power Grid Applications
摘要
Abstract
Modular multilevel converter (MMC) has extensive application in complex AC and DC power grid. The increase of power occupancy and voltage rating of MMC makes the effect of MMC dynamic behavior on power grid non- negligible and therefore it is required to build MMC model suitable for complex AC and DC power grid simulation. In this paper, efficient simulation model of MMC with clamp double sub-module is proposed. Its complicated arm circuit structure is simplified with help of auxiliary components. Cumbrous sub- module switching actions inside one arm are averaged by introducing a controlled voltage source, thus avoiding frequent solving of large-scale node admittance matrix. The proposed model can accurately simulate MMC behavior under stable state, AC fault, converter blocking and especially DC fault clearance and recovery with high efficiency. Compared with detailed model based on independent semiconductor, accuracy and simulation speed of the proposed model are validated with simulation results.关键词
模块化多电平换流器/电磁暂态仿真/复杂交直流网络/柔性直流输电Key words
modular multilevel converter (MMC)/electromagnetic transient simulation/complex AC and DC power grid/voltage source converter based HVDC (VSC- HVDC)分类
信息技术与安全科学引用本文复制引用
李笑倩,宋强,刘文华,孙树敏,李广磊..应用于复杂交直流网络的箝位双子模块型MMC快速仿真模型[J].电网技术,2017,41(9):2847-2853,7.基金项目
国家重点研发计划项目(2016YFB0901004) （2016YFB0901004）
中国博士后科学基金项目(158450). Project Supported by the National Key Research and Development Program (2016YFB0901004) （158450）
China Postdoctoral Science Foundation (158450). （158450）
