Method and system for locating partial discharge of electrical equipment
A partial discharge and electrical equipment technology, applied in the detection field, can solve problems such as error amplification, high cost, and loss of array signal phase difference information
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[0087] The invention aims to provide a method and system for realizing partial discharge localization of electrical equipment by using an ultrasonic array sensor and a novel array signal processing technology.
[0088] The present invention designs a partial discharge localization system based on an ultrasonic array sensor, uses it to receive partial discharge ultrasonic signals, and forms an array model; then proposes a partial discharge ultrasonic array signal denoising algorithm based on fast independent component analysis and a comprehensive evaluation system for denoising effects; on this basis, a complete set of methods including broadband focusing of partial discharge ultrasonic array signals, narrowband direction finding, and spatial positioning are proposed to provide an effective reference for accurately evaluating the partial discharge location of electrical equipment .
[0089] In order to achieve the above object, the specific technical scheme is as follows:
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