Settlement method and device based on peak shaving auxiliary service

Abstract

The invention discloses a settlement method based on peak shaving auxiliary service. The method comprises the following steps: receiving depth peak shaving prices sent by a plurality of thermal power generating units according to a flexible subsection quotation rule, importing variables of the depth peak shaving prices into a rolling power generation model, establishing a corresponding relaxation condition, assigning relaxation variables, establishing an optimization target function of the peak shaving auxiliary service, solving the rolling power generation plan model according to other constraint conditions to obtain a rolling power generation plan, obtaining a depth peak shaving call result of each thermal power generating unit, and performing settlement on actual peak shaving capacity according to the depth peak shaving call result of each thermal power generating unit and the corresponding depth peak shaving prices. The problems that subsection and floor price exist in the existing peak shaving auxiliary service market to affect the peak load regulation capacity of the excellent units, and that the cost is high are solved, the units with stronger peak load regulation capacity and lower costs can make full play to competitive advantages, and realize sufficient and effective competition of peak shaving resources.

Description

technical field [0001] The invention relates to the field of electric power market, in particular to a settlement method and device based on peak shaving auxiliary services. Background technique [0002] The foreign electricity market adopts the market pricing mechanism, and the price of electric energy at different time periods is jointly determined by the quotations of the generators and the relationship between supply and demand in the market. Foreign power markets usually do not regard peak-shaving services as auxiliary services, and peak-shaving services are incorporated into the spot market to absorb costs through time-of-use electricity prices. Some electricity markets have also introduced a negative electricity price mechanism, such as Denmark. The fees paid by wind power or conventional power sources for power generation when the power supply exceeds demand also provide a source of system balancing costs. [0003] In my country, real-time deep peak shaving is one o...

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Problems solved by technology

[0011] The purpose of the embodiments of the present invention is to provide a settlement method and device based on peak-shaving auxiliary services, which can effectively solve the problems of segmentation and minimum price affecting excellent units' ability to perform peak-shaving and high cost in the existing peak-shaving auxiliary service market It overcomes the shortcomings of low utilization efficiency due to excess installed capacity and unbalanced power supply structure in the existing power system, and realizes the flexible use of low-priced deep peak-shaving resources of the power grid under power balance and grid security.

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