A Novel Group Search Method for Optimal Dispatch of Cascade Reservoir Groups

Abstract

The invention relates to the field of power generation scheduling of hydropower systems, and discloses a novel group search method for optimization and scheduling of cascade reservoir groups, which combines an elite set dynamic update strategy and a neighborhood variation search mechanism to balance the global search and local exploration of the method and take into account the population Diversity and the speed of convergence of the method. The technical scheme is as follows: take the water level of the hydropower station as the state variable, take the maximum comprehensive power generation of the cascade reservoir group as the optimization goal during the dispatching period, after initializing a certain number of spider individuals, carry out the internal cooperative behavior of the sub-swarms and the heterosexual individual's generation after generation. The mating behavior, the dynamic update of elite individuals and the search strategy of neighborhood variation, successively approach the optimal scheduling strategy of cascade reservoir groups. Among them, the elite individual dynamic update strategy can ensure that the elite spider group guides the population to carry out effective evolution, and balance the search ability and exploration ability of the method; the excellent individual neighborhood mutation strategy can maintain the diversity of the population and improve the calculation efficiency and convergence speed of the method. The method has good promotion value and application prospect.

Description

technical field [0001] The invention relates to the field of hydropower system power generation scheduling, in particular to a novel group search method for optimal scheduling of cascade reservoir groups. [0002] technical background [0003] With the steady and orderly advancement of hydropower development, China has gradually formed a new pattern of giant cascade reservoirs. The coordinated and unified dispatch of cascade reservoirs is conducive to the rational and efficient utilization of water energy resources and the safe and stable operation of the power system, and can produce significant economic, social and ecological benefits, making the optimal dispatch of cascade reservoirs an important aspect of current and future hydropower energy systems. Important theoretical and practical topics. However, complex hydraulic and electric power connections coexist among cascade reservoirs, and various complex time and space constraints such as water level, outflow, and output ...

AI Technical Summary

Problems solved by technology

However, when applying this method to solve the optimal dispatching problem of cascade reservoir groups, there are still problems such as premature convergence.

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