基于网格平台的广域后备保护专家系统

传统的后备保护以单元件的保护为出发点,缺乏系统全局的观念。介绍了一种网格环境中的广域后备专家系统,它以保证整个输电线网络的稳定与安全为基础,从广域角度实现线路保护的目的。本文首先讨论了网格技术及其在电力系统继电保护中的应用,包括网格的基本概念和特点以及网格技术在广域后备保护中的应用前景;之后介绍了广域后备保护专家系统(BPES)的基本算法和系统结构。通过仿真,验证了其比传统后备保护的优越之处。

Wide area back-up expert system based on grid

The traditional back-up protection is based on protecting a single equipment and lack of global concept.The paper introduces a wide area back-up protection expert system,which takes the stability and security of the power system as its basis and protects the lines from a wide-area view.The application of grid computing technology in protection system is discussed in this paper,including the basic concept of grid computing and its characteristics as well as its application prospect in wide area back-up protection.The wide area back-up expert system(BPES) is then introduced.By simulations,it can be seen that BPES based on grid has much better performance than traditional back-up protection system.This project is supported by Grand Project for National Natural Sience Foundation of China(No.90612018) and Grand Project of Shanghai Electric Power Company(No.F020303).