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Optimization method of efficient flood preventing power generation in hydropower station

An optimization method and hydropower station technology, applied in hydropower, hydropower stations, traditional hydropower energy, etc., can solve the problems of not being able to make full use of flood resources to generate electricity, and achieve the effect of reducing flood disasters

Active Publication Date: 2012-11-14
卢江江 +1
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Problems solved by technology

[0011] The invention provides an optimization method for high-efficiency flood control and power generation of hydropower stations, which solves the current method that cannot fully utilize flood resources to improve power generation efficiency

Method used

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  • Optimization method of efficient flood preventing power generation in hydropower station

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specific Embodiment

[0030] Specific embodiment: Taking the Three Gorges Power Station of the Yangtze River as an example, the Three Gorges Power Station of the Yangtze River does not take into account the function of flood detention and storage capacity in the flood control dispatching. This part has a huge volume of 3 to 6 billion cubic meters. When it rained heavily from the beginning, all 32 generating units were turned on to generate electricity. In the eight days before the peak of the flood, tens of billion cubic meters of flood control storage capacity had been vacated by means of large-scale power generation. , Let the flood level continue to rise (theoretically, it can rise by 5-6m). When the highest water level is reached, the flood peak entering the storage has already been reduced to below the power generation flow of 3.1 cubic meters per second. As a result, the catastrophic flood in the Three Gorges flowed downstream in the form of power generation during the flood discharge process,...

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Abstract

The invention relates to an optimization method of efficient flood preventing power generation in a hydropower station. The method comprises the steps of: dividing the lower course of a river into an upstream part and a downstream part; when a big flood flows through, cutting down the out-reservoir flood peak by adequately using the capacity of the reservoir between a normal water level and a permitted highest flood level; when the flood flows to the downstream for flood detention for 4-5 days, dividing the flood in the upstream and downstream into two parts by the result of flood detention, wherein the original independent flood peak is evolved to a two-peak state which is reduced by half, the water level is reduced much compared with that of the single peak, flood damage of the downstream is reduced, and meanwhile the blood in the flooding process flows to the downstream in the form of generating flow to form a non-flood state. Flood risks are not available in midstream and downstream. The flood control level administrative command can be cancelled, thereby, not only can the natural calamity of flood be reduced, but also blood is adequately used to increase the electric energy production.

Description

technical field [0001] The invention relates to a method for flood control and power generation by cascade hydropower stations, in particular an optimization method for effectively preventing floods and fully utilizing floods to improve power generation efficiency. Background technique [0002] Flood is a natural disaster caused by the water level of rivers, rivers, lakes, and reservoirs rising significantly in a short period of time after a heavy rainstorm, the water flow increasing sharply, the banks of the embankments overflowing, the river beaches or farmland villages and towns being submerged, and the floodwaters coming ashore. . Floods are often ferocious and have great natural destructive power. In addition to causing major disasters to agriculture, they can also cause industry and even loss of life and property. It is one of the top ten natural disasters that threaten human existence. [0003] The main measure to reduce disasters is to build flood control engineerin...

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Application Information

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IPC IPC(8): E02B9/00
CPCY02E10/22Y02E10/20
Inventor 卢现立卢锋杨绿峰卢江江卢婵江
Owner 卢江江
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