Themicrogrid energy management system, which is the core of the microgrid control system, is mainly responsible for the microgrid operating state monitoring, muti-source coordination control, energy optimization management and so on. Firstly, the hardware system is built by the design of the electrical structure and control structure. Around the goal with friendly interaction between microgrid and distribution, it has designed software system platform and application of functional and developed the energy management system, based on the four-dimensional(4D) energy management space, to realize short-term power balance and long-term energy management. It has efficiently resolved the problem in different modes, timings and multi-constraitsconditions.

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