An optimal dispatching method for integrated community energy systems based on the economic optimality

Abstract

In order to strengthen the community energy interconnection and promote the optimization and complementation of various energy sources, the scheduling of the integrated community energy system (ICES) has become the basic work of the development of community energy systems. At the same time, the economic dispatch of ICES is an important measure to accept new energy and improve the economic performance of community energy consumption. Without a suitable economic dispatching method, the system cannot fully accept new energy, which will cause the decrease of overall efficiency of the integrated energy system. For the object of economic optimization, this work proposes a holistic optimization dispatching method of several energy devices (electric boilers, hot water tanks and heat pumps) to minimize the operation cost of ICES. Considering that under low temperature the utilization rate of heating equipment is relatively high, a typical season, winter is selected to build operation constraints models. Example analysis shows that the proposed ICES optimization dispatching method provides an appropriate dispatching scheme for the planner of the ICES. This optimization dispatching method not only reduces the operation cost, but also promotes the consumption of renewable energy.