Coordinated Operation Strategy of Multi-energy Flow System with 5G Base Station Participating in Comprehensive Demand Response

Abstract

The future energy system will integrate multiple energy sources such as electricity, gas, and heat. The mode of independent operation and dispatch of each subsystem will not be suitable for the operation and dispatch of the tightly coupled integrated energy system. For this reason, the integrated demand response of electricity, gas, and heat is introduced into the integrated energy system, in which a 5G base station is taken into consideration for the electric load, to give full play to the scheduling potential of the load side. Then, in order to improve the economy of system operation and the level of new energy consumption, the day-ahead optimal energy flow scheduling model is constructed to minimize the total operating cost of the system. Based on the difference in steady-state transmission characteristics of electricity/gas/heat and the response time of energy equipment, the intraday optimization stage is decomposed into two-time scales. In the longer time scale, the gas and heat subsystems are dispatched and the integrated gas and heat load response is activated. While in the shorter time scale, the power subsystem is finely dispatched and the electric load demand response is activated. Finally, based on the theory of second-order cone relaxation and incremental piecewise linearization, the non-convex and nonlinear problems in the day-intraday optimization model are dealt with, and the day-intraday optimal scheduling strategy of the multi-energy flow integrated energy system is formulated. The results of calculation examples show that the mixed time-scale coordinated scheduling considering 5G base station participating in comprehensive demand response can ensure the safe and economical operation of the system, and realize resource complementarity and energy mutual benefit.