基于工频通信(TWACS)方式,设计了一套应用于油田的抽油机电机远程监测系统集中器装置。方法为利用电压过零点调制的原理,通过配电网电压和电流分别携带微弱畸变信号来实现双向通信,从而实现集中器对抽油机电机各种电气参数进行远程实时监测和电机故障报警。经过现场试验运行,满足可视化操作要求,达到实际应用所需精度。 Based on TWACS, a set of remote monitoring system of pumping unit concentrator used in oil field was designed. The method is based on the principle of zero-crossing voltage modulation, and carries two-way communication by carrying the weak distortion signal through the distribution network voltage and current respectively, so that the concentrator can remotely monitor the various electrical parameters of the pump motor in real time and alarm the motor. After field test run to meet the visual operation requirements, to achieve the accuracy of practical applications.