Phase-sensitive track voltage and phase angle comprehensive acquisition sensor

• Main Authors: YONG HONGCHENG, ZHANG SONG, YI LILI
• Format: Patent
• Language: Chinese; English
• Published: 06.03.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a phase-sensitive track voltage and phase angle comprehensive acquisition sensor which comprises an analog signal processing module, an MCU and a switching value isolation input module. The analog signal processing module is used for carrying out isolation, filtering and voltage stabilization processing on a first input signal and sending the processed first input signal to the MCU. The MCU is used for performing AD conversion, digital filtering and signal analysis and processing on the processed first input signal in sequence. The switching value isolation input module is used for carrying out signal isolation processing on a second input signal and sending the processed second input signal to the MCU. According to the invention, a track voltage signal, a local voltage signal and a track switching value signal are collected simultaneously; the effective value and frequency of each signal are further calculated; the phase angle difference between the local voltage signal and the track