A method and system for economic dispatching of water, thermal power and electricity based on hybrid rice algorithm

Abstract

The invention discloses a hydrothermal power economic dispatch method and system based on a hybrid rice algorithm. The method includes: determining the power generation range of a hydropower plant and the power generation range of a thermal power plant; randomly selecting any value within the power generation range of a hydropower plant as a hydropower plant Any value within the range of the initial power generation and the power generation of the thermal power plant is taken as the initial power generation of the thermal power plant; the first objective function and the second objective function are constructed; the optimal value of the first objective function is solved to obtain the first optimal value; Solve the optimal value of the second objective function to obtain the second optimal value; determine the corresponding optimal power generation of thermal power plants and optimal power generation of hydropower plants; determine according to the optimal power generation of thermal power plants and optimal power generation of hydropower plants The optimal allocation ratio; determine the optimal scheduling scheme according to the optimal allocation ratio. The method or system of the present invention is used to perform multi-objective reactive power optimization based on the hybrid rice algorithm for hydrothermal power dispatching, thereby realizing optimal dispatching of hydrothermal power economy.

Description

technical field [0001] The invention relates to the field of hydrothermal power dispatching, in particular to a hydrothermal power economic dispatching method and system based on a hybrid rice algorithm. Background technique [0002] With the soaring demand for electricity and the depletion of fossil energy, the efficient use of non-renewable energy is becoming increasingly important, and it is necessary to study the efficient use of fuel in thermal power plants. Hydro-thermal power dispatching means that within a certain operation period, through the corresponding decision-making criteria, the output share of hydropower plants can be fully utilized under a series of constraints, so as to achieve the goal of minimizing the fuel cost of thermal power plants. In the scheduling process, not only the constraints of hydropower plants and thermal power plants, but also the network loss during power grid transmission, the valve point effect of the fuel cost function of thermal powe...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and system for economic dispatching of water, thermal power and electricity based on the hybrid rice algorithm, to perform multi-objective reactive power optimization based on the hybrid rice algorithm for the dispatch of water and thermal power, and to solve the problem that the overall situation cannot be performed in the optimal dispatching solution process. Search, easy to fall into the problem of local optimum

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