机械与电子2024，Vol.42Issue(7)：42-46,51,6.
逆变器高频谐波扰动电子信号自动检测方法
Automatic Detection Method for High-frequency Harmonic Disturbance Electronic Signals in Inverters
摘要
Abstract
Research on automatic detection method for high-frequency harmonic disturbance electron-ic signals in inverters is conducted.The electronic signal sampling function of the inverter is constructed and the electronic signal sampling results are obtained.Using the improved threshold function to perform wavelet denoising on electronic signals,sparse decomposition is performed on the denoised signals through a hybrid dictionary to determine the high-frequency harmonic disturbance characteristics of electronic sig-nals.Using the BFGS correction quasi Newton algorithm to optimize the gradient and parameters of the BP neural network,the high-frequency harmonic disturbance characteristics of the electronic signal are input into the optimized BP neural network,and the automatic detection results of the high-frequency harmonic disturbance electronic signal of the inverter are obtained.The experimental results show that the proposed method can accurately obtain the electronic signals of the inverter,and the detection error of high-fre-quency harmonic disturbance electronic signals is low,with good results.关键词
逆变器/高频谐波扰动/电子信号检测/改进阈值函数/混合字典/优化BP神经网络Key words
inverter/high frequency harmonic disturbance/electronic signal detection/improve the threshold function/hybrid dictionary/optimize BP neural network分类
信息技术与安全科学引用本文复制引用
席晓林,张新一,周金涛,黄浩..逆变器高频谐波扰动电子信号自动检测方法[J].机械与电子,2024,42(7):42-46,51,6.基金项目
国网冀北电力有限公司科技投入项目(B7014422001M) （B7014422001M）
