基于Hilbert变换的电压瞬变信号包络提取算法

The Envelope Extraction Algorithm of the Voltage Transient Signal Based on Hilbert Transform

针对电压瞬变信号计量测试数据量大，传统的电压瞬变信号包络提取算法计算时间长，不利于实际应用的缺点，提出了基于Hilbert变换与低通滤波器相结合的电压瞬变信号包络提取算法。对实际电压瞬变信号进行包络提取的结果表明，该算法在保证电压瞬变信号包络提取结果准确度的基础上，能够比传统电压瞬变信号包络提取算法缩短约60％的计算时间。

Aiming at the shortcoming that the measurement data of voltage transient signals is large and the calculation time of the traditional transient signal envelope extraction algorithm is very long and is not conducive to the practical application, a envelope extraction algorithm based on Hilbert transform and low-pass filter is proposed and used to the actual voltage transient signal. The result shows that the envelope extraction algorithm can ensure the result of the voltage transient signal envelope accuracy, shorten about 60% of the computing time than that of the traditional transient signal envelope extraction algorithm.