Hierarchical dimensionality reduction dynamic planning method for load optimization distribution of hydropower station

Abstract

The invention discloses a hierarchical dimensionality reduction dynamic planning method for load optimization distribution of a hydropower station, which is based on a dynamic planning method and overcomes the problem of curse of dimensionality of the dynamic planning method by using a hierarchical planning method. A table storage to-be-looked-up method is adopted. Firstly, an optimal operation general table of the whole plant is calculated off line, and an optimal operation scheme is obtained by looking up the table through a computer in the operation process. On the basis of unit design characteristic data of the power station, dynamic characteristics of each unit and each unit are calculated. On the basis, the optimal load distribution problem under the ideal condition that all the units in the plant can work normally (namely, all the units are good in state, free of faults and capable of working according to designed dynamic characteristics) is researched, a scheme of optimal load distribution of the hydropower station units is given, and a general conclusion of load distribution of the units is obtained. The method has the advantage that the operation efficiency of optimal distribution of the hydropower station unit load is improved. The calculation workload is reduced, the calculation time is shortened, and the real-time operation requirement is met.

Description

technical field [0001] The invention relates to the technical field of economical operation of hydropower stations, in particular to a hierarchical dimensionality reduction dynamic programming method for optimal load distribution of hydropower stations. Background technique [0002] With the development of the national economy, the scale of the power grid continues to increase. The peak-to-valley difference of electricity load in the power grid is large and has strong randomness, so that the demand of electricity load is adjusted frequently and greatly. For the hydropower station participating in the regulation of the power system, how to make the operation of the units in the hydropower station the best economical operation under the premise of satisfying the power system dispatch, that is, to reasonably distribute the load among the units of the whole plant in real time to meet the power generation requirements of the power plant. It is an important topic for the optimal ...

AI Technical Summary

Problems solved by technology

The "curse of dimensionality" problem reduces the calculation efficiency of the dynamic programming method when the number of units is large, and even makes the dynamic programming method difficult to implement. The present invention is an effective technical means to solve the problem of "curse of dimensionality"

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