Wind power plant tower cylinder elevator energy storage and emergency device

Abstract

The invention belongs to the field of electronic circuits, and relates to a wind power plant tower cylinder elevator energy storage and emergency device; the wind power plant tower cylinder elevator energy storage and emergency device comprises an energy storage and emergency conversion circuit and a main controller, wherein the energy storage and emergency conversion circuit is provided with a power battery contactor, a wind generator-side direct-current contactor and a tower-cylinder elevator contactor; the power battery contactor is connected to the side of the power battery; the wind generator-side direct-current contactor is connected to the side of a wind-driven generator; and the tower-cylinder elevator contactor is connected to the side of a tower-cylinder elevator. The generator side direct current energy is stored in the power battery under an energy storage mode, and the electric energy stored by the power battery is released to the power grid in a compensation mode; the power battery direct current energy is converted into alternating current energy and then is transmitted to the tower cylinder elevator in an emergency power supply mode, so that the normal use of the tower cylinder elevator under a fan fault condition is guaranteed under the existing condition, and the fluctuation of power transmission of the wind driven generator to the power grid is effectively stabilized, so that the utilization rate of the power battery is increased, and the energy consumption cost of the wind power plant is reduced.

Description

technical field [0001] The invention belongs to the field of electronic circuits, and relates to an energy storage and emergency device for a wind farm tower elevator. Background technique [0002] With the gradual depletion of earth's fossil energy, the utilization of renewable energy is widely concerned at home and abroad. As a renewable energy, the installed capacity of wind power continues to expand. Xinjiang is rich in wind energy resources. According to the regional advantages of wind resources in Xinjiang, the installed capacity of wind farms in Xinjiang is gradually increasing, and the proportion in the power grid is increasing. The scale reaches tens of millions of kilowatts. Therefore, more and more attention has been paid to the scientific operation of large wind farms and the reduction of energy consumption costs. [0003] At present, the main problem in the operation and maintenance of wind farms is that the maintenance workload of wind turbines is huge, and t...

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Problems solved by technology

[0004] In order to achieve the above purpose, the present invention provides an energy storage and emergency device for a tower elevator in a wind farm, which solves the problem of ensuring the normal use of the tower elevator in the event of a fan failure and improving the power battery usage rate to reduce the The conundrum of energy costs for tower elevators in wind farms

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