电力系统自动化2013，Vol.37Issue(12)：92-99,8.DOI:10.7500/AEPS201210120
基于RTDS的模块化多电平换流器子模块等效模型
An Equivalent Sub-module Model for Modular Multilevel Converter in RTDS
摘要
Abstract
Modular multilevel converter (MMC) is one of the most promising direct current transmission modes.There are lots of sub-modules (SM) in series in MMC high-voltage direct-current (MMC-HVDC) transmission system.It is a challenge to model MMC-HVDC system in real-time simulation tools.Furthermore,the existing MMC component in real time digital simulator (RTDS) cannot be used for SM faults.The rtds_SM component is proposed.It is developed by CBuilder in RTDS.The component can not only reduce memory usage in RTDS,but also be used for the sub-module fault and the test of control and protection devices for MMC system in RTDS.The insulated gate bipolar transistor (IGBT),antiparallel-connected diode and capacitor are modeled; the bypass switch and thyristor models are realized for control and protection.The developed rtds_SM component has eight inputs and two outputs,which can response for various operation states under various conditions.It can also provide the information for capacitor voltage balancing.Simulation results show that the proposed rtds_SM component needs less memory usage and provides high enough simulation precision.关键词
直流输电/子模块故障/控制与保护/实时仿真/CBuilderKey words
direct current transmission/sub-module faults/control and protection/real time simulation/CBuilder引用本文复制引用
刘崇茹,林雪华,李海峰,程晓绚,涂小刚,罗海云..基于RTDS的模块化多电平换流器子模块等效模型[J].电力系统自动化,2013,37(12):92-99,8.基金项目
国家自然科学基金资助项目(51277068) （51277068）
教育部新世纪优秀人才支持计划资助项目(NCET-12-0846) （NCET-12-0846）
This work is supported by National Natural Science Foundation of China (No.51277068) and Program for New Century Excellent Talents in University (No.NCET-12-0846). （No.51277068）
