Title:
PITCH FAULT PREDICTION METHOD AND APPARATUS FOR WIND TURBINE
Document Type and Number:
WIPO Patent Application WO/2024/045413
Kind Code:
A1
Abstract:
A pitch fault prediction method for a wind turbine. The pitch fault prediction method comprises: during a pitch operation of a wind turbine, acquiring at each sampling moment the pitch speed of each blade of the wind turbine and the active power of the wind turbine; determining a power interval where the active power of the wind turbine at each sampling moment is located, and, on the basis of a mapping relation between pitch speed difference ranges of each two blades and the power intervals, determining whether a pitch speed difference of each two blades at each sampling moment exceeds a corresponding pitch speed difference range; and when the number of the pitch speed differences of each two blades exceeding the corresponding pitch speed difference ranges is greater than a first preset number, outputting first pitch fault early warning information indicating that a pitch fault will occur. A pitch fault prediction apparatus for a wind turbine, comprising an acquisition unit (501), a determination unit (502) and an output unit (503). Pitch faults are predicted in advance, such that users can take maintenance measures in time to avoid great loss.
Inventors:
XIA HUIFANG (CN)
TIAN YUANXING (CN)
DU XUEFENG (CN)
TIAN YUANXING (CN)
DU XUEFENG (CN)
Application Number:
PCT/CN2022/139082
Publication Date:
March 07, 2024
Filing Date:
December 14, 2022
Export Citation:
Assignee:
BEIJING GOLDWIND SMART ENERGY SERVICE CO LTD (CN)
International Classes:
F03D17/00
Foreign References:
| CN112228290A | 2021-01-15 | |||
| CN112613554A | 2021-04-06 | |||
| CN113027695A | 2021-06-25 | |||
| CN113090474A | 2021-07-09 | |||
| CN113187674A | 2021-07-30 | |||
| CN113357098A | 2021-09-07 | |||
| EP2402596A2 | 2012-01-04 | |||
| US20200309099A1 | 2020-10-01 |
Attorney, Agent or Firm:
MING & SURE INTELLECTUAL PROPERTY LAW FIRM (CN)
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