Research on Energy Management Strategy for the Island Wind-solar-diesel-battery Integrated System

Based on the island weather and natural conditions, establishing a wind-solar-diesel-battery integrated system and realizing the energy management can maximize the utilization of natural resources of the island, which has practical application demand and significance. In this paper, the structure diagram of a wind-solar-diesel-battery integrated system is described in detail, then the power balance control strategy, the energy allocation and operation modes switch strategy are proposed, and finally the energy management system is realized based on the control strategies. The operation results show that the designed energy management system can realize the optimal control of distributed generation, energy storage device and load, and guarantee the safe, economical and stable operation of the system.