Operation method of a regional integrated energy system containing carbon dioxide energy storage

Abstract

The invention provides an operation method of a regional comprehensive energy system containing carbon dioxide energy storage, and relates to the technical field of regional comprehensive energy system optimization. The system includes power bus, heat load bus, cooling load bus, transcritical carbon dioxide energy storage subsystem, energy input module, gas turbine, gas boiler, waste heat boiler, electric chiller, absorption chiller, ground source heat pump and thermal energy storage device; its operation method is to first judge whether the renewable energy can meet the current electric load demand, if it is satisfied, the renewable energy will be used for power supply, the gas boiler, the ground source heat pump, the waste heat boiler and the thermal energy storage device will provide heat, and the electric refrigerator will and absorption refrigerator for cooling; otherwise, choose power supply equipment; finally determine the supply and demand balance of the regional comprehensive energy system, and then determine the output of each equipment in the system. The system and its operating method of the present invention make the whole system more tightly combined and improve the operating efficiency of the system.

Description

technical field [0001] The invention relates to the technical field of regional comprehensive energy system optimization, in particular to an operation method of a regional comprehensive energy system containing carbon dioxide energy storage. Background technique [0002] Energy is the driving force of social development and the basis of human existence. Due to the increasing shortage of fossil fuels and the increasingly serious environmental pollution problems caused by them, people pay more and more attention to the development of energy saving and emission reduction technologies and the development and utilization of new energy sources. The dual dilemma of rapid consumption of traditional fossil energy sources and increasing environmental pollution has led to The energy Internet with the power system as the core is developed, and by coupling power, transportation, natural gas, heating and cooling systems to achieve complementary advantages and the sharing and efficient ut...

AI Technical Summary

Problems solved by technology

The conversion efficiency of a single energy system is low, and technical defects in production, transmission, storage, etc. will cause a lot of energy waste

The power generation system can only convert 30% to 40% of the fuel energy into electric energy, and the rest of the energy may be transferred to the heat source, but most of it is directly discharged and used, which is unreasonable; due to the fluctuation of the load, the unit runs most of the time. Under non-working conditions, constantly changing the output of the unit is not conducive to the long-term operation of the unit, and the introduction of energy storage technology will improve this problem

[0004] The development of traditional energy storage technology is not perfect and the cost is high. The excess power of the power system cannot be fully absorbed and has to be discarded. This series of problems has brought about great resource consumption and waste.

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