Optimization strategy of AC / DC hybrid energy supply in multi energy system considering adiabatic compressed air energy storage device and comprehensive demand response

Abstract

Abstract Regional multi energy system (RMES)has advantages in meeting the diversified needs of energy and improving energy efficiency. In this paper, with the increase of DC power sources such as photovoltaic power generation and fuel cells, it is difficult for batteries to fully improve energy utilization efficiency and solve the problem of large-scale consumption of clean energy power. An adiabatic compressed air energy storage (A-CAES) device is established, and RMES model considering integrated demand response (IDR) is considered. As the most potential energy storage device at present, A-CAES device can better promote the absorption of new energy such as wind energy and photovoltaic, effectively utilize traditional energy and reduce the environmental pollution caused by RMES. Improve the ”multi-energy complementary” energy supply mode adopted by RMES through A-CAES. IDR is adopted to improve the economy and flexibility of integrated energy system. The results show that the total operating cost of the model established in this paper is significantly reduced, which is effective and feasible to promote new energy consumption, energy conservation and emission reduction.