THD Reduction of A Current Source Rectifier-DC Motor Drive Using Single Tuned Filters
Omar Turath Tawfeeq

Omar Turath Tawfeeq, Electrical Department, University of Mosul/ College of Engineering/ Ninenava-Iraq.
Manuscript received on November 05, 2013. | Revised Manuscript Received on November 20, 2013. | Manuscript published on November 20, 2013. | PP: 25-29 | Volume-1, Issue-12, November 2013. | Retrieval Number: L03601111213/2013©BEIESP
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Abstract: A current source rectifier (CSR) is commonly used to supply a DC Motor with variable voltage for variable speed applications. A study of THD Reduction using single tuned filters employed to obtain the required low harmonic distortion and nearly unity power factor in A.C supply current over a wide range of operating shaft speed. The external performances of a three-phase CSR-fed separately excited DC motor drive such as power factor, harmonics factor, and efficiency using sinusoidal pulse width modulation (SPWM) control technique are obtained for different speeds and modulation indexes. Separately excited DC motors with armature voltage control provides constant torque operation. The effectiveness of the proposed system (2.3-kW 13A DC motor drive) was verified through computer Matlab simulations.
Keywords: Current source rectifier, DC Drive, THD Reduction, Single tuned filters, SPWM.