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A ZVS Technique Implemented inInverter By Using Cycloconverter for variable frequency Application

S. Priya

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The voltage source full-bridge DC-AC converter with PWM technique using a step down Cycloconverter is implemented. The zero-voltage switching (ZVS) commutation for full-bridge high frequency inverter active power switches and the Cycloconverter bi-directional switches are obtained. Soft switching operation is provided in a wide range of voltage regulation without utilizing an auxiliary inductor in the primary side of an isolating transformer. The transformer size and filter components value is reduced by using high frequency inverter. Therefore switching losses in the circuit can be reduced and output voltage is regulated. Based on the simulation and experimental results, the steady-state operation principles of the converter are analyzed.

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MOHAN N., UNDELAND T.M., ROBBINS W.P.: ‘Switching DC power supplies’. ‘Power Electronics: Converter, Application, and Design’, (Willy, New York, 2003, 3rd edn.), pp. 301–353

YAMATOI.,TOKUNAGAN.,MATSUDA.: ‘New conversion system for UPS using high frequency link’. Proc. IEEE Power Electron. Spec. Conf., (PESC), Tokyo, Japan, 1988,pp. 658–663 & The Institution of Engineering and Technology 2008 IET Power Electron., 2008, Vol. 1, No. 2, pp.275–286

MOSCHOPOULOS G., JAIN P.: ‘Single-stage ZVS PWM fullbridge converter’, IEEE Trans. Aerosp. Electron. Syst., 2003, 39, (4), pp. 1122–1133

[4] HELDWEIN M.L., FERRARI DE SOUZA A., BARBI I.: ‘A primary side clamping circuit applied to the ZVS-PWM asymmetrical half-bridge converter’. Proc. IEEE Power Electron. Spec. Conf., (PESC), June 2000, vol. 1, pp. 199–204

[5] ZHU L.: ‘A novel soft-commutating isolated boost fullbridge ZVS-PWM DC-DC converter for bidirectional high power applications’, IEEE Trans. Power Electron., 2006, 21, pp. 422–429

[6] MEDURY A., CARR J., BALDA J., ET AL.: ‘Three-level ZVZCS and ZVS half-bridge converters: a comparative evaluation’. IEEE Power Conver. Conf. (PCC ‘07), April 2007, pp. 892–898

[7] CHUNG V.H., SHIN S.S., CHO G.H.: ‘Bilateral series resonant converter for high frequency link UPS’, IEE Proc., Electron. Power Appl., 1991, 138, (4), pp. 159–166

[8] JANG Y., JOVANOVIC M.M., CHANG Y.M.: ‘A new ZVS-PWM fullbridge converter’, IEEE Trans. Power Electron., 2003, 18, (5), pp. 1122–1129 [9] ZHANG Y., SEN P.C.: ‘A new ZVS phase shifted PWM DC/DC converter with push-pull Type synchronous rectifier’. IEEE Conf. Electrical and Computer Engineering, May 2003, vol. 1, pp. 395–398.



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