摘要
详细阐述了建立直流保护仿真模型的重要性,并根据西门子提供的控制保护模块说明以及直流保护逻辑图,基于PSCAD/EMTDC软件平台,建立了不依赖于厂家的高肇直流保护仿真模型。利用该模型分析了直流线路行波保护、站内接地网过流保护、交流过流保护等直流保护功能的动作特性,充分说明直流保护仿真模型在提高直流运行水平、保障交直流并联运行的电力系统的安全稳定运行能起到重要的作用。
This paper describes the nesessity and key points of set 他 ing up simulation model of HVDC protection system of China Southern Power Grid （CSG）. Based on the specification of control modes and the logic diagrams of HVDC protection system provided by SIEMENS, a simulation model of Gao-Zhao HVDC project is developed independently with PSCAD/EMTDC software package. By this model, the performance of HVDC functions, such as the wave front travelling protection, the over grounding-net current at the station, or the AC over current function is researched, which confirms that the simulation model can play an important role in security and stabilization of AC/DC system operation.
出处
《南方电网技术》
2007年第2期31-35,共5页
Southern Power System Technology
