To solve the complete-period tie-line power fluctuation problem of the distributed combined heat and power(DCHP)system

a complete-period power fluctuation suppressing strategy based on virtual battery model is proposed. Firstly

a virtual gas-battery energy storage model is established according to the dynamic constraints of heat loads

and it is combined with the virtual liquid-battery energy storage model and the battery energy storage model into a virtual battery integrated energy storage system under united architecture of the power grid. Secondly

the complete-period power fluctuation suppressing problem is simplified into a shortest path optimization problem. This problem is solved by the state of charge(SOC)dispatching strategy of the virtual battery integrated energy storage system by using the improved Dijkstra algorithm. Based on the theoretical analysis

the proposed strategy is tested by the practical household energy management system. Finally

test results show that the proposed strategy can suppress the complete-period power fluctuation of DCHP system and realize the co-scheduling of battery energy storage

virtual liquid energy storage and virtual gas energy storage.