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
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.<br> 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).
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
TM71(输配电工程、电力网及电力系统)
国家自然科学基金资助项目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 China51322701;National High-tech R & D Program of China 863 Program2012AA050216
2015-07-16（万方平台首次上网日期，不代表论文的发表时间）
共6页
43-48
