Scheduling method for reducing discarded water amount of cascade hydropower station

Abstract

The invention discloses a scheduling method for reducing the discarded water amount of a cascade hydropower station. The method comprises the following steps: S1, establishing an objective function bytaking the minimum cascade total discarded water amount in a scheduling period as an objective under the situation that the discarded water of a cascade hydropower station group is reduced; S2, establishing constraint conditions of a target function; S3, solving the target function, and obtaining the scheduling process of each power station in the cascade hydropower station. According to the method, the dispatching process of each power station with the minimum cascade total water abandoning amount as the target is achieved.

Description

technical field [0001] The invention belongs to the technical field of optimal dispatching of cascade hydropower stations, and in particular relates to a dispatching method for reducing the amount of discarded water in cascade hydropower stations. Background technique [0002] The cascade power stations in the Beipan River Basin under the jurisdiction of Qianyuan Company (such as figure 1 ) including Shannipo Power Station (with daily regulation performance, installed capacity of 185.5MW), Guangzhao Power Station (with incomplete multi-year regulation performance, installed capacity of 1040MW), Mamaya Power Station (with daily regulation performance, installed capacity of 558MW), Dongqing Power Station (with Daily regulation performance, installed capacity 880MW), the total installed capacity is 2663.5MW. The four cascade hydropower stations in Beipanjiang have both daily and incomplete multi-year regulation performances, and two of them belong to Guizhou Central Dispatchin...

AI Technical Summary

Problems solved by technology

[0003] Except for the incomplete annual regulation capacity of the Guangguang Power Station, the Beipanjiang cascade power stations are daily regulation power stations with relatively poor regulation capacity. When the cascade hydropower stations encounter large floods in the flood season, there is a great risk of water abandonment. At the same time, due to the limited The accuracy of the runoff forecast model is affected. The deviation of the forecasted inflow during the real-time operation of the day may cause the power station to operate according to the power generation plan and produce water abandonment, which directly affects the operating efficiency of the Beipanjiang cascade and the centralized control assessment results. If the amount of abandoned water is large, it may even affect the downstream power station. Threats to safe operation

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