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Impeller rotating speed fault-tolerant monitoring method and system based on flange gap sensor

A gap sensor, flange technology, used in wind turbine monitoring, machine/engine, wind turbine control, etc.

Pending Publication Date: 2021-05-28
陕西中科启航科技有限公司
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Problems solved by technology

[0004] In order to solve the deficiencies of the prior art, the present invention provides a method for fault-tolerant monitoring of the impeller speed based on the flange gap sensor. The value measured by the encoder is verified, which can provide effective feedback information for the pitch control cabinet when the original impeller speed monitoring sensor fails or the slip ring fails. crew safety

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  • Impeller rotating speed fault-tolerant monitoring method and system based on flange gap sensor
  • Impeller rotating speed fault-tolerant monitoring method and system based on flange gap sensor
  • Impeller rotating speed fault-tolerant monitoring method and system based on flange gap sensor

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with drawings and embodiments.

[0039] refer to Figure 1 to Figure 10 , the present invention provides a method for fault-tolerant monitoring of impeller speed based on a flange clearance sensor, comprising the following steps:

[0040] S1. The wind turbine collects the first impeller speed measured by the absolute speed encoder through the speed monitoring module in real time, and transmits it to the main control cabinet processor;

[0041] S2, using the connection between each blade of the wind turbine and the pitch bearing to install a flange gap sensor to collect signals, the flange gap sensor collector 13 collects the signal of the flange gap sensor, and transmits the collected flange gap data To the pitch cabinet control processor;

[0042] S3. The control processor of the pitch control cabinet calculates the rotational speed of the second impeller according to the collected flange clearance ...

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Abstract

The invention provides an impeller rotating speed fault-tolerant monitoring method and system based on a flange gap sensor. The flange gap sensor effectively collects the change of a flange gap, the impeller rotating speed is calculated according to the change of the flange gap, and the impeller rotating speed fault-tolerant monitoring method and system are further used for judging the bolt state and pitch angle control to achieve modularized setting of sensing equipment, fault-tolerant setting of the sensing equipment and intelligent requirements of a unit, such that complementation and fault-tolerant monitoring of an existing system for rotating speed monitoring and rotating speed control of a wind turbine generator through an electric slip ring are achieved, and therefore, the safety requirement of the unit is met.

Description

technical field [0001] The invention relates to a method and system for fault-tolerant monitoring of impeller speed based on a flange gap sensor, and belongs to the technical field of wind turbine monitoring. Background technique [0002] Wind power generation technology is an important development direction of new energy. Based on the consideration of wind resource factors and the conclusion of unit cost analysis, wind power generation units are constantly developing in the direction of large-scale, large-capacity, and offshore. Especially for offshore units, the reliability requirements are higher, so the demand for intelligence and sensor technology of the units is also increasing accordingly. Among them, the impeller speed is an important closed-loop control parameter of the main control, which is not only related to the power generation of the unit, but also related to the safe operation of the unit. [0003] Usually wind turbines use an absolute value speed encoder to...

Claims

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Application Information

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IPC IPC(8): F03D17/00F03D7/00
CPCF03D17/00F03D7/00Y02E10/72
Inventor 程庆阳蔡云龙梁伟林董兆宇
Owner 陕西中科启航科技有限公司
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