电力系统保护与控制Issue(12)：43-48,6.
模块化多电平换流器型柔性直流系统的等效仿真方法比较
Comparative study on the accelerated models of MMC-based VSC-HVDC systems
摘要
Abstract
For modular multilevel converter (MMC) based high-voltage direct-current (HVDC) system, its dynamic simulation faces the problems of cumbersome construction, small simulation step and extremely time-consuming. Based on the review of the results of existing research, four equivalent models are proposed for accurate and accelerated simulation. The four types of equivalent models are investigated by comparative study. All equivalent models are compared with the original detailed MMC’s circuit model. Their key characteristics in simulation are examined. The key characteristics include the simulation speed, the required minimum simulation step and the accuracy for different stability studies (for instance, low-frequency oscillation, short-circuit fault and sub synchronous oscillation). The comparative study of different models provides a reference for selecting a reasonable equivalent model for different targets and requirements. And the results of this work lay a foundation for further improvement on equivalent models of MMC-based VSC-HVDC systems.关键词
模块化多电平换流器/柔性直流输电/电磁仿真/等效仿真/仿真步长/仿真速度Key words
modular multilevel converter (MMC)/HVDC/electromagnetic simulation/equivalent model/simulation step/simulation speed分类
信息技术与安全科学引用本文复制引用
杨煜,孙大卫,谢小荣,黎小林..模块化多电平换流器型柔性直流系统的等效仿真方法比较[J].电力系统保护与控制,2015,(12):43-48,6.基金项目
国家自然科学基金资助项目(51322701) （51322701）
国家高技术研究发展计划项目(863项目)(2012AA050216) This work is supported by National Natural Science Foundation of China (No.51322701) and National High-tech R & D Program of China (863 Program)(No.2012AA050216) （863项目）
