Abstract

The aim of study of this paper is design and implementation of a simple and efficient soft switched Pulse Width Modulation (PWM) for three-phase induction motor drives. Soft-switching techniques have gained popularity in recent times because they offer many advantages over hard-switched Pulse Width Modulated inverters such as higher efficiency, higher power density and better performances. The quasi-resonant DC-link is being designed, the simulation and experimental results prove that it achieves soft switching of all the main switches and resonant circuit switches at the same time it posses all the capabilities of conventional sinusoidal modulated PWM inverter. Finally, the efficiency of the Soft Switched Sinusoidal PWM (SSSPWM) inverter calculated from experimental results is compared with the conventional Hard Switched Sinusoidal PWM (HSSPWM) inverter, under identical load conditions. It is of great significance to improve the efficiency by reducing switching losses, high power density, high reliability and low electro management interference.

Keywords:

Hard-switching inverter pulse width modulation , resonant DC-link inverter , soft-switching inverter pulse width modulation, Zero Voltage Switching (ZVS),

References

1. Amini, M.R. and H. Farzanehfard, 2009. Novel family of PWM soft-single-switched DC-DC converters with coupled inductors. IEEE T. Ind. Electron., 56(6): 2108-2114.
   CrossRef    
2. Amini, M.R. and H. Farzanehfard, 2011. Three-phase soft-switching inverter with minimum components. IEEE T. Ind. Electron., 58(6): 2258-2264.
   CrossRef    
3. Bellar, M.D., T.S. Wu, A. Tchamdjou, J. Mahdavi and M. Ehsani, 1998. A review of soft-switched DC-AC converters. IEEE T. Ind. Appl., 34(4): 847-860.
   CrossRef    
4. Chen, Y.T., 1998. A new quasi-parallel resonant dc link for soft-switching PWM inverters. IEEE T. Power Electr., 13(3): 427-435.
   CrossRef    
5. Chen, S. and T.A. Lipo, 1996. A noval soft-switching PWM inverter for AC motor drives. IEEE T. Power Electr., 11(4): 653-659.
   CrossRef    
6. Divan, D. and I. Wallace, 1997. New developments in resonant DC link inverters. Proceeding of the Power Conversion Conference (PCC'97-Nagaoka), pp: 311-318.
   CrossRef    
7. Pan, Z.Y. and F.L. Luo, 2005. Novel resonant pole inverter for brushless dc motor drive system. IEEE T. Power Electr., 20(1): 173-181.
   CrossRef    
8. Park, S.H., G.R. Cha, Y.C. Jung and C.Y. Won, 2010. Design and application for PV generation system using a soft-switching boost converter with SARC. IEEE T. Ind. Electron., 57(2): 515-522.
   CrossRef    
9. Pattnaik, S.K. and K.K. Mahapatra, 2010. Power loss estimation for PWM and soft-switching inverter using RDCLI. Proceeding of the International MultiConference of Engineering and Computer Scientists, Vol. 2.
   
10. Wang, C.M., C.H. Su, M.C. Jiang and Y.C. Lin, 2008. A ZVS-PWM single phase inverter using a simple ZVS-PWM commutation cell. IEEE T. Ind. Electron., 55(2): 758-766.
    CrossRef    

Competing interests

The authors have no competing interests.

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The authors have no competing interests.