Novel tidal power developing mode and universal condition tidal power plant

Abstract

The invention provides a tidal power generation method and a universal tide power plant. Two reservoirs A and B are enclosed by a cofferdam method on a shoal or shallow sea; furthermore, a water inlet strobe and a water outlet strobe are arranged on the cofferdam to correspond to the reservoir A and the reservoir B; a separation levee between the reservoir A and the reservoir B is provided with a hydraulic generator set which generates power by water head; when an astronomic tide ebbs to the lowest tide level, the water outlet strobe corresponding to the reservoir B is closed to wait for flood tide; when the tide is flooded, the water inlet strobe of the reservoir A is opened and the water enters; furthermore, when the water level reaches the water head between the reservoir B and the reservoir A more than the minimum design of the water head difference for generation, the hydraulic generator set starts to generate power; when the astronomic tide is flooded to the highest tide level, the water inlet strobe of the reservoir A is closed, and the hydraulic generator set continues to generate power by the water head between the reservoir A and the reservoir B when the water level of the B reservoir ascends and the water level of the reservoir A descends; when the tide level ebbs below the water level of the reservoir B, the reservoir B is opened and the water is discharged out, leading the water level of the reservoir B is reduced to the minimum tide level with the ebb and the hydraulic generator set can continue to generate power till the tide is flooded to the next circulation. The invention has the advantages of long generation time, low manufacture cost of unit electric energy, strong controllability of electric energy quality, wide applicable range of plant establishment, high comprehensive exploitation rate of resource, etc.

Description

technical field [0001] The invention relates to a hydroelectric power generation device and a power generation method, in particular to a device and a tidal power generation method utilizing tidal power. Background technique [0002] The development of tidal energy has a history of half a century. The traditional development of tidal energy is to use the bay and build a dam at its entrance. This bay-type single-reservoir tidal power station has disadvantages such as short power generation time, poor power quality, and high cost per unit of electric energy. Therefore, so far, there are only French Langs tidal power stations built in the 1960s and 1980s in the world, with an installed capacity of 200,000 kw; Jiangxia tidal power plants in China The power station, with an installed capacity of 3000kw; Annapolis, Canada, etc., did not make any achievements until the end of the 20th century. The reasons are, first, the economy, second, the controllability of power quality, and th...

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Problems solved by technology

However, the economical efficiency, controllability of power quality and resource limitations in the developmen

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