A collaborative optimal allocation method for thermal power-energy storage considering system operating costs

Abstract

Energy storage is an important way to solve the problems of system power support and new energy consumption. Based on the installed scale of various power sources and load forecast results in the planning year, the power balance calculation of typical methods is used to provide the basis for the calculation of the volume ratio relationship of thermal energy and energy storage. Then, a model is established for the relationship between thermal energy and energy storage to obtain a variety of thermal energy and energy storage installed capacity combinations. This paper proposes a system operation cost objective function to compare the annual cost and new energy consumption rate of thermal energy and energy storage. The aim is to obtain a combination of energy storage and thermal energy that meets the new energy consumption level of the system and has a relatively reasonable annual operation cost. This paper proposes a collaborative optimal allocation method for thermal energy and energy storage that takes into account the system operating costs. It will help guide the development of power resources in the region in the medium to long term and ensure the load supply requirements and power regulation capacity of the power system.