Optimal integrated demand response scheduling in regional integrated energy system with concentrating solar power

Abstract

The Regional Integrated Energy System Concentrating Solar Power (RIES-CSP) can realize the energy conversion between solar energy, thermal energy and electric energy, which provides an effective way to solve the problem of solar power generation. In this paper, a concentrating solar power station is introduced in the integrated energy system of combined thermal and power supply to assist the system operation, and a typical system structure architecture is constructed by combining energy conversion equipment such as wind power station, energy storage device and electric heater. Moreover, the electricity price and the thermal price are used as signals to guide the system to participate in the Integrated Demand Response program (IDR), and the Demand Response model of electric load and thermal load is established based on the price elasticity matrix. On this basis, considering the uncertainty of renewable energy, ladder carbon emission and the DR benefit, the system operation optimization model is established with the goal of minimizing the operation cost of integrated energy system. The model presented could reduce the cost of system without causing a significant amount of environmental pollutions, and improve the energy efficiency of the system operation efficiently. Finally, a RIES-CSP was used for simulation analysis. The simulation results show that the system participates in the IDR program and exchanges energy with the energy market, which makes the DR effect more obvious, and the total operation cost is 7.85% lower than the traditional operation mode.