Remote fault diagnosis method of generator excitation system

A technology of fault remote diagnosis and excitation system, applied in the direction of motor generator testing, etc., can solve problems such as unreliable guarantee of safety, unreliable transmission of information, out-of-control adjustment of generator sets, etc., so as to facilitate the maintenance of on-site personnel and avoid Interference and control, and the effect of reducing economic losses

Active Publication Date: 2015-01-07
NARI TECH CO LTD
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  • Remote fault diagnosis method of generator excitation system
  • Remote fault diagnosis method of generator excitation system

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0033] The present invention is a method and device for remote diagnosis of faults in the excitation system of a generator, which improves the reliability of the excitation system of the generator set, reduces the operation risk of the generator set and the economic loss caused by the failure, and brings great benefits to the maintenance of on-site personnel. Great convenience, implemented as figure 1 The following steps are shown:

[0034] 1) The in-situ abnormal assoc...

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Abstract

The invention discloses a remote fault diagnosis method of a generator excitation system. The method comprises the steps that local abnormities of the generator excitation system are associated and screened according to the data screening algorithm, and effective data are compressed; abnormity and fault information of the generator excitation system is sent to a remote server; the remote server establishes an expert knowledge base to compare the abnormity and fault features of the generator excitation system and locate faults; early warning is carried out on accidents. The method has the advantages that input/output signals of a sensor and an analog quantity of the local generator excitation system are screened, and therefore extraction of effective signals is simplified; data are transmitted to the remote server in a one-way mode, and therefore the remote side is prevented from interfering with or controlling the local excitation system; the server compares the data features through the expert knowledge base so as to rapidly analyze the abnormity and fault information, find out fault causes and predicate the accidents.

Description

technical field [0001] The invention relates to a fault remote diagnosis method, in particular to a remote transmission and determination of a generator excitation system fault and early warning data information. Background technique [0002] The excitation system is the control core of the generator set. Due to the complex types of faults and many factors affecting the operation of the system, it is extremely difficult to locate and analyze the faults of the excitation system. After an abnormality occurs, relying only on local fault signal reporting and display, on-site personnel often respond slowly and are limited by technical capabilities to quickly determine the cause of the fault, let alone predict the expanded fault caused by the current abnormality. If the fault data can be submitted to the remote server or experts for fault analysis in real time, it can provide the fastest support for the site. Therefore, it is necessary to submit the abnormal data of the device t...

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Application Information

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IPC IPC(8): G01R31/34
Inventor 万泉许其品朱宏超耿敏彪袁亚洲郑尧山张传标林元飞桑煜
Owner NARI TECH CO LTD
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