Electric heating integrated energy system optimization scheduling method considering heat storage standby benefit

Abstract

The invention discloses an electric heating integrated energy system optimization scheduling method considering heat storage standby benefits. The method comprises the steps that system parameters are acquired; an electric heating comprehensive energy system optimization scheduling model considering the heat storage tank standby benefit and the proposed operation strategy is established, the optimization scheduling model takes the minimum value of the total coal consumption calculated by the heat storage tank from the actual total coal consumption of the system as a target function, and takes the system constraint, the heat supply area constraint and the unit constraint as constraint conditions; and finally, the operation plan of the heat storage tank and each unit and the total coal consumption of the system are calculated by utilizing an optimization solver. Aiming at the electric heating comprehensive energy system comprising pure condensed coal power, heat supply coal power, wind power, photovoltaic power generation and the heat storage tank, the electric heating comprehensive energy system optimization scheduling under the heat supply standby benefit of the heat storage tank is realized. Conversion benefits from heat storage and heat supply standby of the heat storage tank to power generation standby are considered, decision makers are helped to formulate operation plans of the generator set and the heat storage tank, and then reference is provided for dispatching of the electric heating comprehensive energy system.

Description

technical field [0001] The invention relates to the technical field of power system dispatching operation, in particular to an optimal dispatching method for an electric-thermal comprehensive energy system that takes into account the benefits of heat storage and backup. Background technique [0002] The continuous growth of the installed capacity of new energy such as wind power and photovoltaics puts forward higher requirements for the flexibility of the electric-thermal integrated energy system. As a flexible resource, heat storage tank is widely used in our country because of its low cost and good effect. Existing comprehensive dispatching models usually take the daily cycle, and only operate according to the goal of minimizing the cost of coal consumption of the system, ignoring the heat storage constraints at the end of the heat storage tank, or assuming that the heat storage at the first and last time of the heat storage tank is equal. However, the fluctuation of wind...

AI Technical Summary

Problems solved by technology

This means that the thermal storage tank’s heat supply reserve for the thermal power unit can be transformed into the thermal power generation reserve for the thermal power unit, and the existing models do not consider the heat supply backup benefit of the thermal storage tank in the power reserve constraint

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