主设备继电保护技术的现状与发展

介绍了电力系统中主设备继电保护的现状,阐述了发展趋势。随着硬件平台的发展,双重化继电保护配置方案和主后一体化思想成功地应用于电力系统主设备保护,提高了可靠性,方便了运行管理。主设备内部故障计算方法的工程应用,为内部故障保护方案的优化提供了理论基础。许多新原理和新技术成功地应用于工程,并得到了检验,大大改善了主设备保护的安全运行。光电流互感器(OTA)、光电压互感器(OTV)的应用,将改善TA饱和对主设备保护的影响。主设备保护将向一体化、信息化、智能化、自适应等方向发展。

Development and the Present Situation of Main Equipment Protection Technology

The present situation of main equipment protection in power system was introduced, and the development tendency was elaborated. Along with the development of hardware platform, it was successful to adopt redundant protection disposition scheme and integration of main and backup protection for main equipment, which raised the reliability and facilitated operation management. The engineering application of internal fault calculation method for main equipment offered the theoretical basis for the optimization of internal fault scheme. A lot of new principle and new technology was applied successfully in project, which improved the safety operation of main equipment protection greatly. The application of OTA and OTV will improve the influence of TA saturation on main equipment protection. Main equipment protection will be developed toward the direction of integration, information, intelligence and adaptation etc..