Emergency power supply device

A technology for emergency power supply and wind power generation device, which is applied in emergency power supply arrangement, circuit device, wind power generation and other directions, and can solve problems such as failure of blade adjustment system.
CN102460899AInactive Publication Date: 2012-05-16SSB WIND SYST
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SSB WIND SYST
Publication Date
2012-05-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an emergency power supply device for a rotor blade adjustment system (10) of a wind turbine (1), comprising a plurality of electric power accumulators (16, 17, 18), an electric charging unit (20) and an electric circuit arrangement (19) by means of which the charging unit (20) can be electrically coupled to a plurality of the power accumulators (16, 17, 18), one or more additional charging units (21, 23) being provided such that the number of charging units corresponds to the number of power accumulators. The circuit arrangement (19) can be used to electrically couple each of the charging units (20, 21, 22) to a plurality of power accumulators (16, 17, 18) and each of the power accumulators (16, 17, 18) to a plurality of charging units (20, 21, 22).
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Description

technical field

[0001] The invention relates to an emergency power supply device for a rotor blade adjustment system of a wind power plant, said emergency power supply device having a plurality of electrical energy stores, a charging device and a connection between the charging device and the plurality of energy stores electrically coupled circuit arrangement. Furthermore, the invention relates to a method for operating an emergency power supply system of a rotor blade adjustment system of a wind power plant. Background technique

[0002] In modern wind power generation devices, the power and speed are adjusted by changing the angle of the rotor blades, and the blade adjustment system is used to adjust the angle of the rotor blades. Here, the blade adjustment system is typically a hydraulic system or an electrical system. In addition, the adjustment of the angle of the rotor blades is also used for shutdown and failure shutdown of the wind power generation device, so that ...

Claims

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