TY - JOUR ID - TI - Speed Control of DC Motor using AC/AC/DC Converter Based on Intelligent Techniques السيطرة على سرعة محرك التيار المستمر باستعمال مغير التيار المتناوب/التيار المتناوب/ التيار المستمر بالاعتماد على التقنيات الذكية AU - Rakan Kh. Antar PY - 2009 VL - 16 IS - 2 SP - 11 EP - 19 JO - Tikrit Journal of Engineering Sciences مجلة تكريت للعلوم الهندسية SN - 1813162X 23127589 AB - 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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