Cascade reservoir ecological random optimization scheduling model and solving method

Abstract

The invention discloses a cascade reservoir ecological random optimization scheduling model and a solving method. The establishment of the optimization scheduling model comprises the following steps:firstly, establishing a cascade reservoir ecological random scheduling model target function with the minimum corrected annual flow deviation AAPFD index; secondly, describing constraint conditions ofthe cascade reservoir ecological random scheduling model, wherein the constraint conditions comprise a water level constraint, a discharge flow constraint, a reservoir capacity constraint and a guaranteed output constraint. The ecological random scheduling model is solved by utilizing an SARSA algorithm in reinforcement learning, so that the problem of dimensionality disasters caused by a randomdynamic programming algorithm can be solved. The method can improve the ecological demands on the premise of guaranteeing the output of the cascade reservoir hydropower station, and has higher guidingsignificance for the ecological utilization of reservoir water resources. Meanwhile, the proposed SARSA algorithm can well obtain the result of the cascade reservoir random ecological optimization scheduling model in a short time.

Description

technical field [0001] The invention discloses an ecological stochastic optimal scheduling model of cascade reservoirs and a solution method thereof, belonging to the field of optimal scheduling of reservoirs. Background technique [0002] As the renewable energy with the most mature technology and the largest development scale, hydropower plays an important role in the global power energy supply due to its low operating cost, good regulation performance and fast load response capability. Reservoirs have beneficial functions such as power generation, flood control, and irrigation. However, in the actual operation of the reservoir, in order to improve the benefits of power generation, the natural runoff of the river where the reservoir is located is often changed, which destroys the natural law of the river's hydrological changes, has a great impact on the ecological environment of the river, and causes the ecological environment of the river to deteriorate. As my country ac...

AI Technical Summary

Problems solved by technology

However, in the actual operation of the reservoir, in order to improve the benefits of power generation, the natural runoff of the river where the reservoir is located is often changed, which destroys the natural law of the river's hydrological changes, has a great impact on the ecological environment of the river, and causes the ecological environment of the river to deteriorate.

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