Study Of Crude Oil Dehydration Power Supply With Rectangle-wave Alternate Current

Considering the present situation of electric dehydration power resource of crude oil ,an electric dehydration power resource of crude oil which can output great power is designed from the angle of energy conservation and the performance-cost ratio.In this paper, the electric dehydration power resource is designed in the hardware and software part. The hardware part is made of main circuit, drive circuit, control circuit and protection circuit. The full bridge structure is used in the design of main circuit. The function of main circuit is presented, and the parameters of IGBT power components and transformer are calculated. The control circuit are mainly composed of the TL494 module and the AT89C51 single-chip processor,which forms a closed loop control system. The PWM waves controlling IGBT components are generated by PWM control circuit which is mainly composed of the TL494 module. The IGBT drive circuit uses the special-purpose 2SD315A module to carry on the amplification of control signal. Protection circuit includes over voltage protection, over current protection, short-circuit protection. The software part designs the initialization parameters separately according to anti-biasing controlling circuit which is mainly composed of AT89C51 single-chip processor and does the programming of micro controlled unit. The experimental results indicate that the output waveform meets the requirement of the theoretical design parameters basically and the system can work reliably and control well.Finally, the tests and analysis of the electric dehydration power resource are done, which proves the reasonability of the circuits.