Microcontroller based automatic voltage regulator of synchronous generator using chopper as exciter | ||
| The International Conference on Electrical Engineering | ||
| Article 131, Volume 6, 6th International Conference on Electrical Engineering ICEENG 2008, May 2008, Pages 1-10 PDF (165.72 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/iceeng.2008.34494 | ||
| Authors | ||
| Abdelelah K. M.1; Tarq Kalf Jassim2 | ||
| 1Dr., College of Engineering, Department of Electrical Engineering, University of Mosul. | ||
| 2North Iraqi Petroleum Company. | ||
| Abstract | ||
| Abstract: In this work a single chip microcontroller AT 89C51 is programmed in an assembly language to regulate the terminal voltage of a synchronous generator practically. The output of the microcontroller is as pulse width modulation (PWM) which drives a static exciter as power transistor chopper circuit. The PWM is generated from microcontroller utilizing the timer and programmed in such way that produces duty cycle as a function of the error between reference signal and a measured terminal voltage. The reference voltage has a two part 8+4 bit string and the measured also consist of two parts 8+4 bit string, the absolute error between reference strip and measured strip is computed for each part of the signal individually. The result shows that when a drop in terminal voltage occur the regulator reject this effect and goes back to its set value as fast as possible. | ||
| Keywords | ||
| AVR; Microcontroller AT 89C51; Chopper; Static Exciter | ||
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