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Spectrum intensity information-based arc light risk estimation method and device

A technology of spectral intensity and spectral information, applied in the field of ground fault monitoring of electrical equipment, can solve the problem of insufficient online monitoring accuracy, and achieve the effect of high accuracy and strong anti-interference ability

Inactive Publication Date: 2019-11-12
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0005] This application provides an arc hazard assessment method and device based on spectral intensity information to solve the problem that the current online monitoring accuracy of arc ground faults is not high enough

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  • Spectrum intensity information-based arc light risk estimation method and device
  • Spectrum intensity information-based arc light risk estimation method and device
  • Spectrum intensity information-based arc light risk estimation method and device

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Embodiment Construction

[0066]In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0067] see figure 1 , is a flow chart of a method for assessing arc flash hazards based on spectral intensity information provided in an embodiment of the present application.

[0068] Such as figure 1 As shown, an arc hazard assessment method based on spectral intensity information provided in the embodiment of the present application inclu...

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Abstract

The invention discloses a spectrum intensity information-based arc light risk estimation method and device. The method comprises the steps of acquiring spectrum information of an optical signal; judging whether the optical signal is an arc light signal or not; extracting characteristic bands of arc light spectrum if the optical signal is the arc light signal; and combining spectrum intensity information of a plurality of characteristic bands to obtain an arc light risk degree estimation result. The arc light risk estimation method provided by the invention mainly employs estimation means of non-electrical monitoring and waveform observation, the spectrum intensity of arc light is used as a monitoring object, the spectrum characteristic band is extracted, the interference and the noise arefiltered, the calculation efficiency and the subsequent estimation accuracy are improved, the estimation of the arc light risk degree is achieved by combining the spectrum intensity information of theplurality of characteristic bands, and the method has the remarkable advantages of high interference-resistant capability, high accuracy and the like.

Description

technical field [0001] The present application relates to the technical field of electrical equipment grounding fault monitoring, in particular to a method and device for evaluating arc hazards based on spectral intensity information. Background technique [0002] In the power system, the busbar is the main way to transmit electric energy. However, the arc ground fault of the busbar seriously endangers the safety of electrical equipment. Effective monitoring of the arc is very important for the safe and reliable operation of the power system. The arc can be generated within milliseconds. Once the arc starting mechanism conditions are met, the arc can be ignited under the conditions of low impedance short circuit, high impedance and low current. In addition, due to the ionization of the air, the arc and the nearby resistance will change, resulting in strong light. , high temperature, impact force and toxic gas, etc., which will cause combustion or even explosion. The extensi...

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Application Information

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IPC IPC(8): G01R31/02G01R31/12
CPCG01R31/1218
Inventor 彭兆裕杨明昆邱鹏锋洪志湖代维菊文刚钱国超颜冰马御棠
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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