Multi-objective optimization operation method for combined cooling, heating and power supply system

Abstract

The invention discloses a multi-objective optimization operation method for a combined cooling, heating and power supply system, which comprises the steps of firstly establishing mathematical models respectively for equipment of a combined supply system and a separated supply system; then respectively calculating the total operation cost, the total carbon emission and the total primary energy consumption of the combined supply system and the separated supply system in allusion to each set of the equipment; building a multi-objective optimization model by adopting a weighting method, then performing single-objective optimization solving on the separated power supply by adopting a mixed integer linear programming solver, finally obtaining an optimization operation strategy of the combined supply system, and being coupled to a ground source heat pump. The multi-objective optimization operation method can effectively improve the energy utilization efficiency of terminal users, alleviate the contraction between energy supply and demand in a regional power grid, promote the local absorption of distributed renewable energy and realize social benefits of the combined supply system to the greatest extent.

Description

technical field [0001] The invention belongs to the technical field of power system operation analysis and control, and in particular relates to a multi-objective optimization operation method of a combined cooling, heating and power supply system. Background technique [0002] With the continuous development of economy and technology and the continuous growth of the world's population, energy issues are facing enormous challenges, and future energy demand will continue to rise. The primary energy consumption dominated by fossil energy has further aggravated the tense situation of energy supply. In addition, the combustion of fossil energy has brought huge environmental problems, and rational and effective energy utilization will become a hot spot in academic research. At present, the form of energy consumption is gradually shifting from simplification to diversification. The traditional energy supply system generally meets energy demand in the form of distributed supply, wh...

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Problems solved by technology

For power generation systems, fossil energy is burned to generate heat, only a small part of which is converted into electricity, and the rest of the heat is dissipated in the air, so the energy loss is serious and the energy utilization rate is extremely low

For cold energy, due to the large demand for cold energy in summer, traditional cold energy is met by electric refrigeration and air conditioners, and a large number of air-conditioning cooling loads increase the pressure on the power grid for peak-shaving and valley-shaving

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