电力系统仿真软件PSS/E中柔性直流输电系统模型及其仿真研究  

VSC-HVDC Models of PSS/E and Their Applicability in Simulations

作　　者：常勇[1] 徐政[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027

出　　处：《电网技术》2007年第8期37-41,共5页Power System Technology

基　　金：国家自然科学基金资助项目(50277034)~~

摘　　要：柔性直流输电系统(voltage sourced converters high voltage direct current,VSC-HVDC)因其快速灵活的可控性在电力工业中将有越来越广泛的应用,研究其在复杂电力网络中的动态性能具有工程实际意义,应用电力系统仿真软件PSS/E可模拟柔性直流输电的准稳态响应。介绍了PSS/E动态仿真的基本原理;分析了柔性直流输电模型VSCDCT的有效性和适用性,并基于实际系统对准稳态直流动态模型VSCDCT进行了仿真研究,仿真结果表明PSS/E直流模型能够满足大规模交/直流系统仿真的要求。Because of its fast and flexible controllability, the voltage source converter （VSC） based high voltage direct current （VSC-HVDC） will be widely applied in power systems, so it is of practical significance to study the dynamic performance of VSC-HVDC in complicated power grids. The quasi steady state response of flexible HVDC system can be simulated in power system simulation software PSS/E. In this paper the basic principle of dynamic simulation with PSS/E is presented; the effectiveness and adaptability of flexible HVDC power transmission model are analyzed, and on the basis of actual power system the quasi steady-state VSC-HVDC dynamic model VSCDCT is simulated. Simulation results show that it is available to apply PSS/E in transient stability analysis of practical large-scale AD/DC power system.

关 键 词：PSS/E 柔性直流输电模型 准稳态直流动态模型 直流动态特性 电力系统 

分 类 号：TM721.1[电气工程—电力系统及自动化]