摘要
我国能源资源和生产力发展呈逆向分布,西部能源基地与东部负荷中心距离在1000～3000km左右,使得建立长距离、大容量的特高压输电系统成为必然。短距离特高压输电线路的过电压问题已有研究,而当传输距离进一步增加时,工频过电压情况更为严重,抑制方法更为复杂。结合超高压输电线路工频过电压抑制方法,针对特高压线路的具体实例,对远距离特高压输电线路的工频过电压进行了较全面的仿真研究,研究了带有串联电容补偿和并联电抗补偿的特高压输电线路的特性,为特高压远距离输电工程的建设提供了理论依据。
In China, the energy resources distribution is against the productive forces development, the energy base in the west is about 1000-3000km away from the load center in the east, Therefore, the UHV transmission system with long distance and large capacity should be established. The overvoltage of short-distance transmission line has already been studied. With the transmission distance increasing, the fundamental frequency overvoltage becomes more severely and the retraining methods more complicated. In this paper, based on the design example of UHV AC transmission system, the study of comprehensive simulation is carried out about the overvoltage of fundamental frequency component of long-distance lines. The characteristics of UHV transmission lines with the compensation of shunt reactor and series capacitor is studied. Theoretical support is supplied to the construction of long-distance UHV transmission system project. This project is supported by National Natural Science Foundation of Guangdong Province（No. 05300167） and National Natural Science of South China University of Technology（No.B05E5050370）.
出处
《继电器》
CSCD
北大核心
2007年第4期32-35,39,共5页
Relay
基金
广东省自然科学基金项目(05300167)
华南理工大学自然科学基金项目(B05E5050370)~~
关键词
特高压
输电线路
工频过电压
仿真
UHV
AC transmission line
fundamental frequency overvoltage
simulation
