Wind power and waterpower hybrid generation device

Abstract

The invention belongs to the technical field of a wind power and waterpower generation and relates to a hybrid wind power and waterpower generation device. The hybrid wind power and waterpower generation device comprises an upper storage reservoir, a lower storage reservoir lower than the upper storage reservoir, water conveying pipes communicating the upper storage reservoir with the lower storage reservoir, and a waterpower generation device arranged on the water conveying pipe, wherein a wind power generation device is arranged on one side of the upper storage reservoir, and electricity generated by the wind power generation device is input into a variable-frequency motor through a power transmission line; the variable-frequency motor drives a water suction pump to pump water; a water inlet of the water suction pump is communicated with the bottom in the lower storage reservoir through a water conveying pipe; and a water outlet of the water suction pump is communicated with the water conveying pipes between the upper storage reservoir and the lower storage reservoir through the water conveying pipe. The hybrid wind power and waterpower generation device disclosed by the invention has the advantages that a disordered inferior power supply of wind power generation is changed into a high-quality power supply needed in a power utilization peak of a power grid; the variable-frequency motor is applicable to a wind power generator or a wind power generator set to generate a fluctuated power supply, so that wind energy in renewable energy resources can be sufficiently utilized; a power grid structure can be optimized, a peak clipping and valley filling capability of the power grid is improved, and the total operation cost is effectively reduced; and therefore, the hybrid wind power and waterpower generation device is suitable for middle-sized and small-sized hydraulic power stations.

Description

technical field [0001] The invention belongs to the technical field of wind power and hydropower generation, in particular to a wind-hydraulic hybrid power generation device. Background technique [0002] At present, the forms of hydroelectric power stations are as follows: one is the pumped storage power station, which transfers the water level potential energy of the upstream reservoir to the downstream reservoir, and the kinetic energy generated by the water level is converted into electrical energy by the hydroelectric generator; There are upper and lower reservoirs. Wind power generation is currently being directly connected to the grid for power generation. Due to the erratic wind force, the generated electric energy is disordered and low-quality electric energy. The specific application of wind power generation has great limitations. Although both of the above two types operate independently and have relatively complete structures, it is still a great pity for the ut...

AI Technical Summary

Problems solved by technology

Although the above two types operate independently and have a relatively complete structure, it is still a great regret for the use of renewable energy that they cannot be combined with wind energy to generate electricity.

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