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A MICROCONTROLLER BASED - 400 HERTZ FREQUENCY CONVERTER | ||
| AL-TAQANI | ||
| Article 1, Volume 24, Issue 2, 2011, Pages 74-85 | ||
| Authors | ||
| Widad Jasim Hamody AL-Rawee; Safa Sahib Omran; Jameel K. Abed AL-Jashami | ||
| Abstract | ||
| This research deals with constructing and implementing voltage source inverter to control voltage at any frequency. The microcontroller 89c51 is used by pulse width modulation (PWM) generating different pulses in the duty cycle at any frequency. The voltage applied to an induction motor is varied by using a single phase, 400 HZ, voltage source inverter. The microcontroller is programmed to generate a train of pulses with different duty cycles at constant frequency 400 HZ. The range of duty cycle is from 0% - 60% at 5% resolution. The inverter receives the DC signal from the rectifier and converts it to AC power to feed the motor. MOSFETS are used as inverter power switches which are controlled by pulses calculated and generated by the microcontroller. Voltage inverter is represented by computer simulation applying orcad 9.2 program. The system is applied practically by implemting the design | ||
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