The decomposed and coordinated calculation between multiple control centers can solve the contradiction between interconnected power systems and their hierarchical management and control. But distributed calculation is a complicated process involving multi-region

multi-user and multi-application

hence the need of an investigation of the specific parallel calculation mechanism for realization. To solve the management problem of the multi-control center decomposed and coordinated calculation used in practice

an access platform for all kinds of distributed applications is provided

the distributed parallel calculation management mechanism being designed practically. The management mechanism includes the decomposition-coordination mechanism

master-slave mechanism and parallel calculation mechanism

stereographically forming 3-dimensional data layering by 3 dimensional coordinate setting. It is a complete set of parallel calculation management mechanism able to realize the goal of different users belonging to different subsystems enabled to start different application calculations independently while exploring the realization method of a new generation of energy management systems(EMSs)based on 3 dimensions. This work is supported by National Natural Science Foundation of China(No. 51277070).