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An online monitoring system for the displacement of the stator core of the hydroelectric generator

A hydroelectric generator, stator core technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve problems such as generator failure, economic loss, etc.

Active Publication Date: 2018-03-27
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

During the regular maintenance interval, the deterioration of the stator core of the generator cannot be detected in time, until the generator fails, and the operator cannot perceive it. At this time, the generator has suffered a serious failure, causing major economic losses

Method used

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  • An online monitoring system for the displacement of the stator core of the hydroelectric generator
  • An online monitoring system for the displacement of the stator core of the hydroelectric generator
  • An online monitoring system for the displacement of the stator core of the hydroelectric generator

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] First of all, it should be noted that the specific structure and characteristics of the integrated grid structure will be described below by way of example, which should not be construed as any limitation to the present invention. Secondly, any technical feature mentioned (specifically described or implicitly disclosed) in the following specific embodiments, as well as any technical feature directly shown or implied in each drawing, can still be included in these technical features ( or their equivalents), to obtain more other embodiments that may not be directly mentioned in the present inv...

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Abstract

The invention relates to the technical field of hydraulic generator operation state monitoring, in particular to an online monitoring system for stator core displacement of a hydraulic generator. The invention arranges the sensing optical fiber in the groove of the stator iron core, monitors the displacement of the stator iron core indirectly through monitoring the optical power of the sensing optical fiber, detects the fault of the stator iron core in time and performs fault location.

Description

technical field [0001] The invention relates to the technical field of hydraulic generator operation state monitoring, in particular to an online monitoring system for stator core displacement of a hydraulic generator. Background technique [0002] The hydro-generator set is the core equipment of a hydropower plant and consists of two parts: a turbine and a generator. The water turbine is the power equipment, the power source of the power plant, and the equipment that converts the potential energy and kinetic energy of water into mechanical energy; the generator is the equipment that converts the mechanical energy of the water turbine into electrical energy, driven by the turbine rotor of the water turbine, the rotor of the generator rotates, and the stator coil and The rotor forms and cuts the magnetic field lines, and converts the mechanical energy of the rotor into electrical energy to realize power generation. The hydroelectric generator consists of main components such...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
Inventor 李永清沈利平别必鹏王恩选张建伟李晓崔新友马春泉姬发茂魏延花
Owner STATE GRID CORP OF CHINA
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