中国电机工程学报2016，Vol.36Issue(17)：4647-4655,9.DOI:10.13334/j.0258-8013.pcsee.150575
一种适用于MMC-HVDC连接极弱受端交流电网的功率阻尼同步控制方法
Power Damping Synchronization Control for MMC-HVDC Connected to an Extremely Weak Receiving AC Grid
摘要
Abstract
Integrating the current vector control and power synchronization control, and introducing instantaneous damping power component, a novel power damping synchronization control was proposed for modular multilevel converter based HVDC (MMC-HVDC) connecting to an extremely weak receiving AC grid. A small signal mathematical model of MMC-HVDC system was deduced, and the impact of power damping synchronization controller parameters on system stability was analyzed under extremely weak receiving AC system condition. Then, the controller parameter adjustable range, with which MMC-HVDC system could maintain stable operation, was investigated under different short circuit ratios (SCRs). Finally, The MMC-HVDC system connected to an extremely weak receiving AC grid was developed, and simulation analysis was conducted in the PSCAD/EMTDC. The results show that the presented power damping synchronization control method has favorable performances, and has the ability to strengthen the operation stability of MMC-HVDC connecting to an extremely weak receiving AC grid.关键词
模块化多电平换流器/极弱交流系统/功率阻尼同步控制/小信号模型Key words
modular multilevel converter/extremely weak AC system/power damping synchronization loop/small-signal model分类
信息技术与安全科学引用本文复制引用
刘炜,郭春义,赵成勇,李承昱..一种适用于MMC-HVDC连接极弱受端交流电网的功率阻尼同步控制方法[J].中国电机工程学报,2016,36(17):4647-4655,9.基金项目
国家自然科学基金项目(51177042)；国家863高技术基金项目(2013AA050105)；高等学校博士学科点专项科研基金资助项目(20130036120006)。Project Supported by National Natural Science Foundation of China (51177042) （51177042）
The National High Technology Research and Development of China 863 Program (2013AA050105) （2013AA050105）
Project Supported by Specialized Research Fund for the Doctoral Program of Higher Education (20130036120006) （20130036120006）
