Distributed clean heating based on combined dispatching method of microgrid electricity and heat in industrial parks

Abstract

A joint electric and thermal dispatching method for industrial park microgrid based on distributed clean heating: establish the overall architecture of the industrial park microgrid based on distributed heating, including the building-level electric heating supply system and the park-level collaborative power supply system; construct the industrial park microgrid simulation model, Including building heat balance model, air source heat pump model, heat storage equipment model; constructing industrial park microgrid economic scheduling model, including objective function, electric power balance constraints, indoor temperature constraints, air source heat pump heating power constraints, energy storage Capacity constraints, energy storage device power constraints, photovoltaic grid-connected power constraints, and power flow constraints; a genetic algorithm-based microgrid scheduling solution method is proposed, including individual screening corrections and genetic algorithm partial optimization. The invention can provide technical support for dispatching of industrial parks based on distributed clean heating, is beneficial to improving the level of comprehensive energy utilization and management, and promotes the rational development of micro-energy networks in industrial parks.

Description

technical field [0001] The invention relates to a microgrid scheduling method. In particular, it relates to an industrial park micro-grid electric-heat joint scheduling method based on distributed clean heating, which is suitable for the day-ahead scheduling work of energy suppliers in industrial parks. Background technique [0002] With the development of the energy Internet, the coordinated supply of electricity / heat / gas has become an inevitable trend of future energy supply. Due to its clean and efficient energy supply characteristics, electricity / heat / gas combined supply has many applications in new industrial parks, but it also brings a series of problems. On the one hand, the park has space resources for building a large number of photovoltaic and other new energy power generation equipment and the load is relatively concentrated, which is conducive to solving the problems of poor investment returns and high energy loss caused by long-distance power supply, but it inc...

AI Technical Summary

Problems solved by technology

[0004] However, there are certain limitations in the currently commonly used dispatching method of electricity and heat combined dispatching to accommodate new energy.

First, the scheduling method is mainly suitable for energy supply systems dominated by cogeneration units. It mainly uses the idea of ​​decoupling electric heating to expand the consumption space for new energy, but it is difficult to apply to the use of distributed clean heating equipment for heat supply. The system, distributed heating and heat storage devices are distributed in each building with heating demand, which can be flexibly adjusted according to the characteristics of the building, and can participate in the consumption of new energy itself; second, it is difficult to express the heat demand with a fixed curve Considering the indoor temperature, in fact, the change of indoor temperature is an important parameter of the heating system, which can reflect the quality of heating and the comfort of users

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