Detection Method for Insulating Gas Leakage of Combined Electrical Appliances based on Mutual Sensing Feature and Nuclear Bias Least Squares

When detecting the insulation gas leakage of the combined electrical appliances, the reliability of the detection results is low due to the influence of noise interference in the combined electrical appliances. Therefore, the detection method of the combined electrical appliances based on the mutual inductive feature and the nuclear least squares is proposed. Design the acquisition method based on the principle of the mutual induction. In the stage of combined electrical insulation gas leakage detection, the problem in a limited space (combined electrical data), with the mapping function to determine the presence of gas leakage status, an indirect way-nuclear least squares, to calculate the partial derivative of the variable (combined electrical data) and mapping function (gas leakage state), to realize the accurate detection of the combined electrical insulation gas leakage. In the test results, the effective detection rate of the designed detection method is stable above 95.0%, the false detection rate is less than 3.0%, and the missed detection rate is less than 2.0%, with high reliability.