Dynamic Load Adjustment Method of Hydropower Station Based on Unilateral Matching Mechanism

Abstract

The invention provides a method for dynamic load adjustment of a hydropower station based on a unilateral matching mechanism, comprising the following steps: obtaining an initial scheduling process; determining the load adjustment time t*, calculating the load matching coefficient R of the upper and lower hydropower stations on the current day; formulating a unilateral matching mechanism based on It carries out full-cycle dispatch calculation, and implements early warning judgment of operating water level and river flood control; outputs load adjustment plans that meet the early warning requirements, and analyzes the matching of load processes before and after the adjustment of cascade hydropower stations; the evaluation results are used in both reservoir dispatching and power grid operation. aspects of security. The purpose of the present invention is to provide a dynamic load adjustment method of hydropower station based on the unilateral matching mechanism to improve the matching of the upstream and downstream cascade load processes, and to promote the adjustment ability of the hydropower station to the uncertainty of the incoming water and the load process. to ensure the safe operation of hydropower stations.

Description

technical field [0001] The invention belongs to the technical field of water conservancy project management and hydropower energy dispatching, and in particular relates to a dynamic load adjustment method of a hydropower station based on a unilateral matching mechanism. Background technique [0002] The process from hydropower output to grid connection requires the coordination and cooperation of the grid dispatching department and the reservoir dispatching department. For cascade hydropower stations with a series structure, when the upper and lower hydropower stations belong to different power grid dispatching departments, the difference in the load characteristics of the regional power grid will cause a mismatch in the output process of the two hydropower stations. [0003] The unmatched load process has brought great pressure to the dispatching and operation of downstream hydropower stations, especially when the adjustment storage capacity of the lower-level hydropower st...

AI Technical Summary

Problems solved by technology

In fact, most of the unfavorable working conditions occur in lower-level hydropower stations with weak regulation capacity. The essence of the problem reflects the incompatibility of the lower-level hydropower stations in two aspects: one is the interaction between the hydropower station's own load, inflow flow and reservoir regulation capacity. The second is the mutual incompatibility of the upstream and downstream cascade load process

The overall processing method in the existing technology is difficult to comprehensively reflect the nature of the problem, and the richness of technical effects needs to be improved

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