Based on an open architecture model of distributed realtime system

a new generation platform of EMS is designed and implemented . Server side components are developed in Linux system

including event bus

data access bus

and some SCADA/EMS applications. Client side components include maintenance and operation control subsystems. Based on WebJava technology

maintenance subsystem is to be accessed anywhere. While operation control subsystem is implemented into Java application to obtain good responsibility and reliability. In particular

the platform can run on multivendor heterogeneous computers

and be easy to integrate the clients of EMS/DMS/DMIS into one workstation. Benchmark testing shows that the new platform could satisfy the requirements of EMS.