Study On TWACS Of Concentrator Equipment For Pumping Unit Remote Monitor System

In order to realize automatic management of equipment used in oil mining,it is significant to consider Remote Monitoring System applied in pumping-unit motor.As a great number of oil wells are scattered,information transmitting channels with the advantages of low cost and high reliability have become the critical way for remote monitoring system. According to requirement of information transmittance in remote monitoring system for pumping-unit motor and taking structure characteristics of power supply network of oil field into consideration,concentrator for remote monitoring based on Two Way Automatic Communication System(TWACS)is designed.The electrical parameters from remote monitoring terminal can be acquired by this set which is already used in the oil field.Because the harmonics from power network are serious,signals are preprocessed before demodulation by using the technology of independent component in order to improve the performance of uplink communication in power frequency.Through the simulation results,it is proved that in this system the serious harmonic interference can be suppressed effectively and ideal results can be achieved,which lays a foundation for the improvement of communication performance.