An improved topology of digitally-controlled single-phase single-stage high DC voltage converter

Mekhilef, Saad and Omar, A.M. and Muhammad, K.S. (2006) An improved topology of digitally-controlled single-phase single-stage high DC voltage converter. In: 37th IEEE Power Electronics Specialists Conference 2006, PESC'06, Jeju.

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Abstract

This paper presents An improved topology of digitally-controlled single-phase single-stage high dc voltage converter where CPLD is used to develop the PWM switching pattern which will be discussed in detail. The proposed system utilizes a single-phase AC input supply. The power switching devices in the controlled bridge are controlled by the multiple-pulse Pulse Width Modulation (PWM) switching technique to minimize the low order harmonics present on the AC side of the converter. A low pass Alter is incorporated in the circuit to Alter out unwanted harmonics and provide a sinusoidal AC supply current. A high frequency transformer with 1:1 ratio is used in the design to provide galvanic isolation for better circuit performance and protection. The optimum operation of transformer core in four quadrant of B-H curve is also considered in the proposed converter topology. A laboratory prototype of the converter is developed and tested. Experimental results are compared with the simulation results to illustrate the effectiveness of the proposed technique.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference code: 71922 Export Date: 16 November 2012 Source: Scopus Art. No.: 1711787 CODEN: PRICD doi: 10.1109/PESC.2006.1711787 Language of Original Document: English Correspondence Address: Mekhilef, S.; University of Malaya, Department of Electrical Engineering, 50603, Kuala Lumpur, Malaysia; email: saad@um.edu.my References: Wang, J., Dunford, W., Mauch, K., A Comparison Between Some Proposed Boost Topologies and Conventional Topologies In Discontinuous Inductor Current Mode (1996) Proceeding of 22 nd annual IEEE international Conference on Industrial Electronic, control and instrumentation (IECON), 3, pp. 1524-1529; Lopez, O., Garcia De Vicuna, L., Matas, J., Castilla, M., and Lopez, M.: A New Family of Single-Stage High Power-Factor AC/DC Converters, Proceeding of 31 st annual IEEE Power Electronic Specialist Conference. (PESC) 2000, 3, pp. 1445-1450Lu, Z., Chen, H., Qian, Z., Green, T.C., An Improved Topology of Boost Converter with Ripple-Free Input Current (2000) Proceedings of 15 th annual IEEE Applied Power Electronics Conference and Exposition, 1, pp. 528-532. , APEC; Iqbal, S., A three-phase Symmetrical Multistage Voltage Multiplier (2005) IEEE Power Electronics Letters, 3 (1), pp. 30-33. , March; Bellar, M.D., Watanabe, E.H., Mesquita, A.C., Analysis of the Dynamic and Steady-state performance of Cockcroft-Walton Cascade Rectifiers (1992) IEEE Transactions on Power Electronics, 7 (3), pp. 526-534. , July; Wismer, M.G., Steady-state Operation of a High-voltage Multiresonant Converter in a High-Temperature Environment (2003) IEEE Transactions on Power Electronics, 18 (3), pp. 740-748. , May; Holtz, J., Pulsewidth modulation for electronic power conversion (1994) Proceedings of the IEEE, 82 (8), pp. 1194-1214. , Aug; The Programmable Logic Data Book, Xilinx Databook, 1998Moschopoulos, G., Jain, P., Single-phase Single-stage Power-factor-corrected Converter Topologies (2005) IEEE Transactions on Industrial Electronics, 52 (1), pp. 23-35. , Feb; Garcia, O., Cobos, J.A., Prieto, R., Alou, P., Uceda, J., Simple AC/DC converters to meet IEC 1000-3-2 (2000) Applied Power Electronics Conference and Exposition, 1, pp. 487-493. , 6-10 Feb, 1; Rossetto, L., Buso, S., Digitally-controlled single-phase single-stage AC/DC PWM converter (2003) IEEE Transactions on Power Electronics, 18 (1), pp. 326-333. , Jan
Uncontrolled Keywords: Digital control systems, Harmonic analysis, High frequency transformers, Optimization, Pulse width modulation, Topology, Galvanic isolation, Low pass Alter, Switching patterns, Voltage control.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 26 Feb 2013 09:50
Last Modified: 25 Oct 2019 03:50
URI: http://eprints.um.edu.my/id/eprint/4896

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