A multi-objective optimization and electric quantity distribution method for a cascade key hydropower station in a market environment

Abstract

The invention belongs to the field of hydroelectric economic dispatching, andrelates to a multi-objective optimization and electric quantity distribution method for a cascade key hydropower station ina market environment. According to the water coming condition in the cascade hydropower station group year, the requirement is formulated according to the multi-objective optimization scheduling method with the maximum market economic benefit and the minimum waste water amount, and the multivariate power market allocation proportion based on the minimum price fluctuation rate and the maximum expected income of different markets is given according to multivariate market classification. the NSGA-2 genetic algorithm framework is used to solve the multi-objective frontier solution set for the economic benefits and the abandonment of the ladder market, a satisfactory solution set for the water level process and the treatment process of the cascade reservoir in the year are given, and a plan participation multivariate market transaction electric quantity distribution proportion is given according to market electricity price fluctuation in the reference year. The invention publishes the boundary range of the water level of the important hydropower station for the transaction center and provides method support for the hydropower station participating in the main market to participate in power market bidding.

Description

technical field [0001] The invention belongs to the field of hydropower economic dispatching, and relates to a method for multi-objective optimization and electricity distribution of cascade key hydropower stations in a market environment. According to the market transaction information disclosed by the trading center, combined with historical runoff information and future runoff forecast, economic benefits and abandoned water The minimum goal is to optimize the market power distribution and water level control within the year, and then provide method support for the transaction center to release the boundary range of the water level of important hydropower stations, and provide method support for the hydropower stations of market participants to participate in the electricity market bidding. technical background [0002] The cascade hydropower station group with multi-year regulation performance plays an important role in the utilization of water energy in the entire river b...

AI Technical Summary

Problems solved by technology

With the gradual establishment of the electricity market in my country, the price of electricity transactions is affected by market supply and demand. Cascade hydropower stations, as market participants, tend to "discharge water during dry seasons with high prices and store water at low prices during flood seasons". Influenced by uncertain factors, once this behavior is contrary to the situation of incoming water, it will lead to the reduction of incoming water in the later period and reduce the economic benefits, and the increase of incoming water will aggravate the potential of cascading water abandonment

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