A cascade utilization method of multi-grade energy based on thermal coupling analysis

This paper presents a cascade utilization method of multi-grade energy based on thermal coupling analysis. This paper analyzes the principle of energy cascade utilization, constructs the cascade utilization energy flow structure of electrical thermal coupling transformation, and analyzes the utilization form and energy grade rise and fall method of electric power, steam, high temperature hot water, medium temperature hot water and low temperature hot water from the Angle of energy cascade utilization. Based on the operation constraints of the energy cascade optimization utilization model, the optimized economic operation of the electrical thermal micro-grid system is realized by coordinating and scheduling the coupling equipment of each energy flow. The method takes into full account the coupling and complementation of various forms of energy and the principle of multi-grade cascade optimization, and makes full use of the energy of different grades in the production process to realize the energy efficiency optimization of the system.