Digital control of high DC voltage converter based on cockcroft walton voltage multiplier circuit

Muhammad, K.S. and Omar, A.M. and Mekhilef, Saad (2007) Digital control of high DC voltage converter based on cockcroft walton voltage multiplier circuit. In: TENCON 2005 - 2005 IEEE Region 10 Conference, Melbourne.

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A new method of controlling high DC voltage based on Cockcroft Walton Voltage Multiplier circuit by using digital controller is presented. The digital controller is developed using Complex Programmable Logic Devices (CPLD). The proposed system utilizes a single-phase AC as an input supply. The power switching devices in the controlled bridge are controlled by the multiple-pulse Pulse Width Modulation (PWM) switching technique so as to minimize the low order harmonic present on the AC side of the converter system. A low pass filter is incorporated in the circuit to filter out unwanted harmonics and to give a sinusoidal AC current. A high frequency transformer with 1:1 ratio is incorporated 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. The laboratory model of the converter is developed and tested. The experimental result is compared with the simulation result.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference code: 69661 Export Date: 16 November 2012 Source: Scopus Art. No.: 4084880 CODEN: 85QXA doi: 10.1109/TENCON.2005.300885 Language of Original Document: English Correspondence Address: Mekhilef, S.; Department of Electrical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia; email: References: Yan Liu; Moschopoulos, G.; A single-stage AC-DC Forward Converter with Input Power Factor Correction and Reduced DC Bus Voltage, The 25th International Telecommunications Energy Conference, 19-23 Oct. 2003 pp. 132-139Chun-Feng Jin; Ninomiya, T.; Novel Soft-switched Single-stage AC-DC Converter with Sow Line-current Harmonics and Low Output-voltage Ripple, Power Electronics Specialists Conference 2001, 2, 17-21 June 2001, pp. 660 - 665Moschopoulos, 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; 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; Rahim, N.A., And Omar, A.M., Three-phase Single-Stage High-Voltage DC Converter (2002) IEE Proceedings Generation, Transmission and Distribution, 149 (5), pp. 505-509. , Sept; 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 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 - 1450UR -
Uncontrolled Keywords: And Pulse Width Modulation (PWM), Cockcroft Walton, Complex Programmable Logic Devices (CPLD), Digital control systems, Harmonic analysis, Multiplying circuits, Optimization, Pulse width modulation, Topology, Voltage control, Cockcroft walton voltage multiplier circuits, Digital controllers, Electric converters.
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 09:36
Last Modified: 25 Oct 2019 03:48

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