Study on optimization method of rural integrated energy system including renewable energy

Abstract

Due to the implementation of the rural revitalization strategy, the urbanization process in rural areas has been accelerated in China, as the economy has grown more rapidly and energy consumption has increased. Rural power infrastructure, however, remains inadequate and the rural power grid is relatively weak, which further exacerbates the contradiction between rural energy supply and demand. To solve these problems and achieve sustainable development, renewable energy sources should be utilized for energy supply in rural areas to reduce the demand for power from rural grids. Using this idea, this paper proposes an optimization method for an integrated energy system for rural areas that includes renewable energy sources. Firstly, a model of the output of equipment such as wind and solar biogas, as well as the model of energy storage equipment, is constructed. A portion of flexible load is considered when estimating energy consumption on the demand side. A day-ahead optimization model for rural energy systems is designed to minimize costs, which allows different energy sources to play complementary roles under the constraints of power balance, output limits, etc. The approach proposed in this paper may provide a comprehensive solution for optimizing the operation of an integrated rural energy system by improving its energy efficiency and maximizing its use of renewable energy resources. Furthermore, the article also provides specific examples of the feasibility of the method.