Application of grid computing in wide area relaying protection

The grid computing is a key information technology springing up in recent years.This paper introduces the basic concept,development status,structure and characteristic of grid technology.According to the current situation of power system in China,the application of grid computing system in relaying protection is prospected.Taking the wide area current differential protection as example,the function of grid computing is briefly explained in dividing protection region,fast and reliably cutting fault,overcoming circuit breaker's failures and misstrip.