Day-ahead safety constraint unit combination method for coordinated optimization of standby auxiliary service and electric energy

Abstract

The invention discloses a day-ahead safety constraint unit combination method for coordination optimization of standby auxiliary service and electric energy, and relates to the technical field of power system operation and control, in particular to unit combination under the background of coordination optimization of auxiliary service and electric energy. The method comprises the following steps: 1) declaration data of market subjects such as loads, electricity selling companies and power generators are input; operation parameters of the power system are input; 2) quotation data of the market subject and operation parameters of the power system are used to construct an objective function and constraint conditions of a day-ahead security constraint unit commitment model of standby auxiliary service and electric quantity coordinated optimization; 3) the optimization model is solved, the start-stop state of each generator is obtained after calculation, and the start-stop plan of the day-ahead unit is instructed. The day-ahead unit combination of the power system can be effectively optimized, social welfare maximization is achieved, the market operation efficiency is improved, and the situation that scheduling means intervene in market behaviors is avoided.

Description

technical field [0001] The invention relates to the technical field of power system operation and control, in particular to unit combination under the background of auxiliary service and electric energy coordination and optimization. Background technique [0002] At present, the reform of the electricity market is in full swing. Due to the power generation space of the electric energy and the spare generator set, the optimization and clearing of the two in the market environment has brought severe challenges to the existing unit combination. At the same time, how the dispatching organization considers the safety constraints of the power system operation while taking into account the economics of the power system operation has become an important factor affecting the safe and stable operation of the power market, and has brought greater uncertainty to the normal operation of the power system. Contents of the invention [0003] The purpose of the present invention is to over...

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Problems solved by technology

[0002] At present, the reform of the electricity market is in full swing. Due to the power generation space of the electric energy and the spare generator set, the optimization and clearing of the two in the market environment has brought severe challenges to the existing unit combination.

At the same time, how the dispatching organization considers the safety constraints of the power system operation while taking into account the economics of the power system operation has become an important factor affecting the safe and stable operation of the power market, and has brought greater uncertainty to the normal operation of the power system.

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