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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.

Inactive Publication Date: 2012-05-16
SSB WIND SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This reduces recharging time, but can still result in failure of the blade adjustment system due to a failure of one charging device

Method used

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Examples

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Embodiment Construction

[0034] in the attached figure 1 A schematic diagram of a wind power generation device 1 is clearly shown in , and the wind power generation device includes a tower body 3 erected on a base 2 , and a machine room 4 is arranged at the end of the tower body 3 away from the base 2 . The machine room 4 has a support (frame) 5 on which is supported a rotatable rotor 6 comprising a rotor hub 7 and a plurality of rotor blades 8, 38 and 39 connected to the hub (see Figure 4 ). The rotor 6 is mechanically connected to a generator 9 which is arranged in the machine room 4 and is fastened to the frame 5 .

[0035] A rotor blade adjustment system 10 is arranged in the rotor hub 7, the system 10 comprising an emergency power supply device 11 according to an embodiment of the invention and a blade angle adjustment drive 12, by means of which the rotor blades 8 , 38 and 39 can rotate around their respective longitudinal axes 13, 40 and 41 relative to the rotor hub 7 (see Figure 4 ). The...

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PUM

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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).

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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Application Information

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IPC IPC(8): H02J9/06F03D7/02
CPCY02E10/723H02J9/062F05B2260/76Y02E10/766F03D7/0224Y02E10/721F05B2260/74Y02B10/70Y02E10/72Y02E10/76
Inventor R.哈格多恩
Owner SSB WIND SYST
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