Congestion dispatch bilevel programming method of considering real-time operation risk

Abstract

The invention discloses a congestion dispatch bilevel programming method of considering a real-time operation risk. The method comprises the following steps of building an objective function of an upper model by employing the minimum comprehensive cost of congestion dispatch as the target, carrying out constraining by using constraint conditions of the upper model, and building an objective function of a lower model by employing the minimum operation risk cost as the target and carrying out constraining by using the constraint conditions of the lower model, thereby obtaining a congestion dispatch bilevel programming model; and converting the congestion dispatch bilevel programming model into a mixed-integer linear programming model by using a KKT optimality condition and a linearization method and solving the mixed-integer linear programming model by using a CPLEX to generate an optimal scheme for congestion dispatch. According to the congestion dispatch bilevel programming method, theoperation risk, caused by uncertainty wind power output, to a system can be quantified, power adjustment of the congestion dispatch and joint optimization of the rotating reserve capacity are achieved, the condition of unavailable rotating reserve capacity of the system can be reduced, and resource allocation is further optimized.

Description

technical field [0001] The invention belongs to the field of optimal dispatching of electric power systems under the electric power market, and more specifically relates to a two-layer planning method for congestion dispatching considering real-time operation risks. Background technique [0002] The development of wind power has become the core content of many countries' promotion of energy transition and an important way to deal with climate change. From 2012 to 2016, the wind power grid-connected capacity increased from 61.42 million kilowatts to 148.64 million kilowatts. In addition, according to my country's "Thirteenth Five-Year Plan for Electric Power Development", from 2016 to 2020, my country's wind power will continue to maintain a high-speed development trend. situation. However, the output of wind power is random and fluctuating. The implementation of the "Renewable Energy Power Generation Guaranteed Acquisition Management Measures" makes wind power almost undispa...

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Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a two-level planning method for congestion scheduling that considers real-time operation risks, thereby solving the problem that the traditional congestion scheduling method does not consider the uncertainty of wind power and does not establish a clear The technical problem of quantifying the real-time operation risk brought by wind power output uncertainty to the system

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