A fault handling method for the speed measuring motor in the ssb pitch motor

A fault handling method and a tachometer motor technology, which are applied in the field of wind power, can solve the problems of long workload and working time, high cost of spare parts for pitch motors, waste of spare parts cost, etc., so as to reduce the cost of spare parts and reduce the workload and working time. , reduce the effect of lifting

Active Publication Date: 2016-08-10
BEIJING TIANYUAN SCI & TECH CREATION WINDPOWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical solution is simple, but there is a lot of preparatory work in the early stage, such as lifting the spare parts pitch motor to the nacelle and moving it into the impeller, locking the blades, etc.
In addition, as the running time increases, the number of speed measuring motors will be more worn. In 2011, 8 pitch motors were replaced for this reason, and in 2012, 13 pitch motors were replaced for this reason. The manufacturer’s latest quotation for spare parts of pitch motors is 50,000 yuan / piece, resulting in a huge waste of spare parts cost
Therefore, the overall disadvantages of directly replacing the SSB pitch motor are: longer workload and working hours, and higher cost of spare parts for the pitch motor

Method used

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  • A fault handling method for the speed measuring motor in the ssb pitch motor
  • A fault handling method for the speed measuring motor in the ssb pitch motor
  • A fault handling method for the speed measuring motor in the ssb pitch motor

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Embodiment Construction

[0035] The invention provides a fault handling method for a speed-measuring motor of an SSB variable-pitch motor, that is, the speed-measuring motor is replaced separately.

[0036] With the prolongation of the running time of the unit, the speed measuring motor in the SSB pitch motor will have a certain degree of wear or abnormal output, which will cause the feathering speed of the pitch motor to be too fast or shake, and when it is too fast, it will greatly exceed the internal setting of the drive. Emergency stop speed (7 degrees / second), will cause pitch system failure.

[0037] For the situation that the feathering speed is too fast or shakes on site, first check the related components and circuits of the pitch control system. If there is no problem, it can be judged that the speed measuring motor is faulty.

[0038] see figure 1 As shown, replacing the tachometer motor in the pitch motor separately includes the following steps:

[0039] First of all, for the preparation...

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Abstract

The invention discloses a fault processing method of a speed measuring motor in an SSB (Single Side Band) variable pitch motor, i.e. the speed measuring motor can be independently replaced. Compared with a previous method for directly replacing a variable pitch motor, the method disclosed by the invention is economic, effective, convenient and quick, the cost consumption of spare parts is greatly reduced, and the working amount and the working time are reduced.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a fault handling method for a speed measuring motor in an SSB variable pitch motor. Background technique [0002] In the SSB pitch system, there is a speed measuring motor inside the pitch motor, and the speed measuring motor will output a corresponding voltage signal to the driver when the pitch motor is running. If the feedback signal is abnormal, the speed of the driver controlling the pitch motor will also be An abnormality occurs, followed by a pitch system failure. [0003] Since the speed measuring motor is located inside the SSB pitch motor, the SSB pitch motor has not been disassembled in the early stage, so in 2011 and the first half of 2012, the pitch system failures caused by the speed measuring motor were all replaced by direct replacement of the pitch motor. To solve the fault, the replacement of the SSB pitch motor is the same as the replacement of the VENSYS p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/00
Inventor 王雪王忠伟
Owner BEIJING TIANYUAN SCI & TECH CREATION WINDPOWER TECH
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