电力系统自动化2017，Vol.41Issue(17)：66-71,6.DOI:10.7500/AEPS20161220003
基于不对称双子模块的混合MMC及其直流故障自清除能力
Hybrid MMC Based on Asymmetrical Double Commutated Cells and Its DC Fault Clearance Capability
摘要
Abstract
The rapid development of voltage source converter based high voltage direct current transmission (VSC-HVDC) technology and Energy Internet have greatly expanded the application of power electronic conversion technique in the field of transmission and distribution of the power system.Because of the frequent appearance of instantaneous fault on overhead lines of VSC-HVDC, the structure of asymmetrical double commutated cells (ADCC) with DC fault clearance capability is studied.First, the topology, operating principle and the control algorithm of the ADCC are given, the loss of ADCC is analyzed and calculated.Faced with the higher loss in the ADCC based multi-modular converter than that in the half bridge multi-modular converter, the structure of hybrid multi-modular converter with ADCC and half-bridge cell combined is proposed.Furthermore, the design principle of the hybrid multi-modular converter is also proposed.Finally, the DC fault clearance capability of the hybrid multi-modular converter is verified by simulation waveforms of the hybrid multi-modular converter in transient fault at DC side in MATLAB/Simulink software.关键词
模块化多电平换流器/不对称双子模块/柔性直流输电/直流线路故障Key words
multi-modular converter/asymmetrical double commutated cells (ADCC)/voltage source converter based high voltage direct current transmission (VSC-HVDC)/DC line fault引用本文复制引用
朱明琳,杭丽君,李国杰..基于不对称双子模块的混合MMC及其直流故障自清除能力[J].电力系统自动化,2017,41(17):66-71,6.基金项目
国家重点研发计划资助项目(2016YFB0900201).This work is supported by National Key Research and Development Program of China (No.2016YFB0900201). （2016YFB0900201）
