摘要
为高效、准确模拟大型交直流混合电力系统的整个动态过程,提出将逆变器整体等效为一个可控电压源,忽略MMC内部的复杂建模过程,仅保留系统、装置级控制器。最后通过仿真,分析故障下舟山五端柔性直流及交流混合系统,证明了该方法的可行性。
In order to efficiently and accurately simulate the whole dynamic process of the large AC-DC hybrid power system,it is proposed that the inverter as a whole is equivalent to a controllable voltage source,ignoring the complex modeling process in MMC,and only retaining the system and device level controllers. Finally,the simulation analysis of a five-terminal flexible DC and AC hybrid system in Zhoushan is carried out,which proves that the method is feasible.
作者
张秀峰
丁明磊
李夯
李慧
沈清野
赵浩然
韩磊
ZHANG Xiufeng;DING Minglei;LI Hang;LI Hui;SHEN Qingye;ZHAO Haoran;HAN Lei(State Grid Zhoushan Power Supply Company,Zhoushan 316000,China)
出处
《电工技术》
2019年第5期19-20,25,共3页
Electric Engineering
关键词
柔直系统
机电暂态
等效建模
flexible DC transmission system
electromechanical transient
equivalent modeling