Energy and auxiliary service joint optimization method considering frequency modulation mileage demand constraints

Abstract

The invention relates to an energy and auxiliary service joint optimization method considering frequency modulation mileage demand constraints, which comprises the following steps of: 1) inputting declaration data of market subjects such as a load, a power selling company, a power generator and the like, and inputting operation parameters of a power system; 2) constructing an objective function and constraint conditions of a real-time market clearing model of energy and auxiliary service joint optimization considering frequency modulation mileage demand constraints by utilizing quotation dataof a market subject and operation parameters of the power system; and 3) solving the optimization model, calculating the start-stop state of each generator, and guiding the start-stop plan of the day-ahead unit. The quotation data of each market subject, the operation parameters of the power system and the characteristics of the frequency modulation capacity, the standby capacity and the power generation capacity sharing unit output space are comprehensively considered, and through the joint optimization clearing model, on the premise of meeting the safety and stability constraints of the power system, the total cost of generator energy, frequency modulation and standby auxiliary service is pursued to be lowest.

Description

technical field [0001] The technical field of power system operation and control of the present invention, specifically relates to a unit combination under the background of coordinated optimization of frequency modulation, backup auxiliary services and electric energy, especially a joint optimization method of energy and auxiliary services considering the constraints of frequency modulation mileage requirements . Background technique [0002] At present, the reform of the electricity market is in full swing. Since the power generation space of the generator set is shared with the backup and frequency regulation auxiliary services, 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 af...

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Problems solved by technology

[0002] At present, the reform of the electricity market is in full swing. Since the power generation space of the generator set is shared with the backup and frequency regulation auxiliary services, 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

[0003] If the real-time power system clearing model is unreasonable, there will be a mismatch between the clearing results and the actual power system operation, and emergency rescheduling is required to ensure the normal operation of the system. However, this will affect the efficiency of market operations, making This reduces the enthusiasm of power generation companies to participate in the market, affects the stable operation of the power market, and further affects the safety and effectiveness of the entire power system.

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