基于500kV线路继电保护配置整定的仿真计算

Implementation and Setting of the 500kV Transmission Lines in the Dynamic Simulation Laboratory

作为电网传输电能通道的高压及超高压输电已经越来越普及,500kV及以上电压等级的线路保护已经成为维护电力系统安全、稳定运行不可或缺的重要组成部分。在归纳典型高压线路主保护的理论基础上,运用ETAP Powerstation软件进行短路计算,并根据该线路配置进行相应的整定计算,有效提高了保护整定的计算效率。由于系统为动模实验室的综合仿真模拟系统,通过相应参数设置,能够较为真实地模拟电力系统的实际情况,对继电保护的整定计算具有较大的参考价值。

As the transmission channel of power system, high voltage and extra-high voltage power transmission is becoming more and more popular. The transmission line protection of 500 kV or higher voltage is becoming, an indispensably important component of the maintenance of the safe and stable operation of the grid. First, this paper sums up the basic principle of classic main protection of high voltage transmission lines. Secondly, it uses Etap Powerstaion 5.0.3 to compute the short circuit current. At last, it implements the specific protection, and then finishes the setting. With the result of short circuit current calculation, the efficiency of settings can be improved. The power system is the synthesis simulation system in the dynamic simulation lab. With the setting of the parameters, the system is highly closed to real system, which provides a worthwhile reference for the setting of protection relay.