Local discharge development process diagnosis method based on pulse-train analysis
A technology of partial discharge and pulse sequence, which is applied in the direction of testing dielectric strength, etc., can solve the problems of not considering continuous discharge interaction, space charge effect, and not considering discharge time sequence, etc., and achieves wide application range, high utilization rate and wide application range Applied effect
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[0050] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0051] Such as figure 1 As shown, the method for diagnosing the development process of partial discharge based on pulse sequence analysis of the present invention includes the following steps:
[0052] Step 1), signal acquisition. The partial discharge signal emitted by the power equipment is captured by sensors (such as high-frequency current sensors, coupled capacitance sensors), and after amplification and digital-to-analog conversion, it becomes a digital signal that is continuously collected and sent to the signal preprocessing module. The information collected for partial discharge signals includes: applied voltage amplitude, frequency, phase of each discharge pulse ( )-Amplitude (q) information (ie phase-amplitude), the timing relationship between partial discharge pulses (ie time array).
[0053] Step 2), signal preprocessing. When obtaining ...
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