Investigation of Sst Pwm in qZSI
Keywords:
Quasi-Z-Source Inverter (qZSI), DC to DC converter, shoot through state, PWMAbstract
This paper presents an analysis of single phase Quasi Z-Source (qZS) Inverter based grid connected system. Quasi Z-Source DC to DC converter consists of unique impedance network which consists of inductors and capacitors. To boost DC voltage, traditional boost converters were used. But it has many disadvantages like dual stage converter, complexity in control, losses are high. On the other side the quasi-Z-Source Inverter (qZSI) is an alternative converter that can boost the input voltage. It has many advantages like single stage conversion, lesser losses, reduced component rating as well as size of components and provides continuous input current. Quasi-ZSI provides boost capability with single stage conversion which ultimately reduces the switching losses. qZSI allow the shoot through state which is responsible for the boosting of the input voltage to the higher values and avoids the risk of damaging switches in converter circuit to make the circuit more reliable. Theoretical analysis of boosted voltage and control methods for the qZSI system are investigated in this paper. Both simulations and theoretical analysis will be presented to demonstrate the proposed concept.
References
- J.Park, H.Kim, T.Chun, E.Nho, H.Shin and M.Chi," A control strategy for the grid connected PV system using a Z-source inverter", IEEE Conf. PE.1-3 Dec 2008
- Van Dijk, Edwin, J. N. Spruijt, Dermot M. O'sullivan, and J. Ben Klaassens, "PWM-switch modelling of DC-DC converters," IEEE Transactions on Power electronics, vol. 10, no. 6, pp.659-665, 1995.
- F. Z. Peng, M. Shen, and Z. Qian, Maximum boost control of the Z- source inverter,' IEEE Trans. Power Electron., vol. 20, no. 4, pp. 833_838, Jul. 2005.
- Y. P. Siwakoti, F. Z. Peng, F. Blaabjerg, P. C. Loh, and G. E. Town, "Impedance- source networks for electric power conversion part I:A topological review," IEEE Trans. Power Electron., vol.30, no.2, pp.699-716, Feb. 2015.
- Fang Zheng Peng, "Z-Source Inverter,"IEEE Trans. on Industry Applications, vol. 39, no. 2, pp. 504-510, March/April. 2003.
- F. Z. Peng, M. Shen, and Z. Qian, Maximum boost control of the Z- source inverter,' IEEE Trans. Power Electron., vol. 20, no. 4, pp. 833_838, Jul. 2005.
- Y. Liu, B. Ge, H. Abu-Rub, and F. Z. Peng, "An effective control method for quasi-Z-source cascade multilevel inverter based grid-tie single-phase? photovoltaic power system," IEEE Trans. Ind. Informat, vol. 10, no. 1, pp.399-407, Feb. 2014.
- J. G. Cintron-Rivera et al., "Quasi-Z- Source inverter with energy storage for photovoltaic power generation systems," in Proc. 26th IEEE Annu. Appl. Power Electron. Conf. Expo. (APEC), 2011, pp. 401-406.
- S. G. Kadwane, U.K. Shinde, S.P.Gawande, R.K. Keshri,"Symmetrical Shoot-through? base decoupled control of Z-Source Inverter," IEEE Access, vol.3, pp.11298-11306 , May 2017.
- J. Liu, S. Jiang, D. Cao, and F. Z. Peng, "A digital current control of quasi-Z- source inverter with battery," IEEE Trans. Ind. Informat., vol. 9, no. 2, pp.928-937, Apr. 2013.
- Y.Liu, B.Ge, H.Abu-Rub, & H.Sun. (2016). "Hybrid pulsewidth modulated single-phase quasi-Z-source grid-tie Photovoltaic power system". IEEE Trans. Ind Informat., vol.12, no. 2, pp.621-632, Apr. 2016.
- M. H. Rashid, Power Electronics, 2nd ed. Englewood Cliffs, NJ: Prentice-Hall,1993.
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