Condition Assessment Method of Electronic Transformer Based on High-dimensional Random Matrix

The operation status of the transformer in the substation is changeable, and the evaluation index can not be determined, which leads to an increase in evaluation error. The evaluation method of the electronic transformer based on a high-dimensional random matrix is studied and analyzed. A comprehensive evaluation of the needs and standards and analysis of the evaluation characteristics are targeted to clear the evaluation index and calculate the threshold, build a high-dimensional random matrix state assessment model, and use the wide-area measurement processing method to achieve state assessment. The test results show that the final evaluation error of the method is only 0.82, which is well controlled below 1. It indicates that in the process of practical application, the evaluation speed is fast, the accuracy is high, and the links are simplified, which has practical application value.