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Speed Control of DC Motor using AC/AC/DC Converter Based on Intelligent Techniques | ||
| Tikrit Journal of Engineering Sciences | ||
| Article 1, Volume 16, Issue 2, 2009, Pages 11-19 PDF (0 K) | ||
| Author | ||
| Rakan Kh. Antar | ||
| Abstract | ||
| This paper describes the application of ac/ac/dc and ac/dc converters to control the speed of a separately excited DC motor. Artificial neural network and PI controller are trained to select the desired values of firing angles for triggering thyristors of the ac/ac/dc and ac/dc bridge converters in order to control the speed of the dc motor at a desired value with constant and different load torques in order to obtain the best speed response. Simulation results show that the rising time for ac/dc and ac/ac/dc converters at 250rpm are reduced about 79% and 89% respectively, while delay time it reduced about 69% and 64% respectively. Therefore, speed response of the dc motor is more efficient for closed loop system compared with open loop also the response of ac/ac/dc converter is better than ac/dc converter.Key words: Speed control, Speed response, DC motor, AC voltage controller, Artificial neural network, PI controller. | ||
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