Owing to the use of active-standby hosts to process all the real-time data

the current supervisory control and data acquisition(SCADA)system is faced with more and more severe challenges in terms of data throughput capacity

real-time performance

scalability

reliability and whatnot. A novel distributed SCADA system is proposed and its architecture and some related key technologies such as distributed resource and task management

distributed real-time data management

and distributed data processing are discussed. The system has broken through the bottleneck of the existing SCADA data processing mode

which can effectively improve the performance of the SCADA system and adapt to the development of future power grid dispatching and control operation.