Optimized operation method of cool and thermal power comprehensive energy system

Abstract

The invention provides an optimized operation method of a cool and thermal power comprehensive energy system. The optimized operation method comprises the steps of: 1) taking the optimal overall operating economic efficiency of the cool and thermal power comprehensive energy system as the core, considering multi-time scale characteristics of the cool and thermal power comprehensive energy system,and constructing a system operating total cost minimum objective function; 2) establishing an equipment constraint model and a power balance constraint model as the multi-time scale characteristics ofthe cool and thermal power comprehensive energy system are considered, and regarding the equipment constraint model and the power balance constraint model as constraint conditions of the system operating total cost minimum objective function; 3) and adopting a branch and bound method, and solving the system operating total cost minimum objective function according to the constraint conditions instep 2). For the complex structure and operation mechanism of the cool and thermal power comprehensive energy system, the optimized operation method can improve the energy utilization rate, reduces the operating cost, and realizes the optimized operation of the cool and thermal power comprehensive energy system.

Description

technical field [0001] The invention belongs to the field of comprehensive energy systems, and in particular relates to an optimal operation method for a cold, heating and power comprehensive energy system. Background technique [0002] Cooling, heating and power integrated energy system is based on the concept of cascade utilization of energy, using natural gas as primary energy to generate heat, electricity, and cold energy. It uses natural gas as fuel, and uses small gas turbines, gas internal combustion engines, micro-combustion engines and other equipment to burn the high-temperature flue gas obtained after natural gas combustion for power generation, and then uses the waste heat for heating in winter; in summer, it drives absorption refrigerators for cooling; At the same time, domestic hot water can also be provided, making full use of the exhaust heat. The primary energy utilization rate can be increased to about 80%, which saves a lot of primary energy. [0003] Ac...

AI Technical Summary

Problems solved by technology

[0005] The integrated cooling, heating and power energy system is essentially a cooling, heating and power multi-energy coupling system with complex structure and operating mechanism, multiple laws coexisting and interacting, and has the characteristics of numerous parameter variables, nonlinearity, uncertainty, and multi-level. Therefore, Its system structure and workflow are complex and diverse

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