In order to improve the accuracy of grounding fault detection of direct current power supply in substation,a grounding fault detection method of direct current power supply in substation based on Morlet wavelet is proposed.According to the detection requirements,the grounding fault signal is extracted,and the fault data is collected by dynamic acquisition.Based on Morlet wavelet,the fault detection model of direct current power supply grounding is designed,and the fault detection is realized by transient processing The test results show that the method proposed in this paper has high precision,can clearly identify the detection target,and effectively improve the comprehensive performance of the grounding fault detection mode.
Morlet waveletsubstationdirect current power supplyground faultfault detection
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