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An Improved Power Electronic Controller with Unity Power Factor for a Single-Stage Grid-Tied PV System

  • Research Article - Electrical Engineering
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Abstract

A single-stage PV system using Z-source inverter (ZSI) capable of operating in grid-connected mode or stand-alone mode has been developed for extracting power from PV array. For feeding the extracted power to the grid, an analog current controller adjusting the modulation index of ZSI combined with the shoot-through duty ratio has been designed and developed. The proposed system has the advantage of using less number of power converters and can be built with simple controllers. Experiments have been conducted on a PV array consisting of seven PV panels (each rated for 21.2V, 5.17A) connected in series, feeding a 110V single-phase utility grid through ZSI. A hysteresis current controller for varying the modulation index of ZSI has been built using analog ICs. Using MATLAB/Simulink, the complete system has been simulated and the simulation results closely correlate with experimental ones. The efficacy of the proposed scheme with the power being fed to the grid at unity power factor is indicated by the results. It is also proved that the total harmonic distortion of both voltage and current waveforms fed to the grid terminals is less than 5%.

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References

  1. Nikhil P.G., Subhakar D.: Sizing and parametric analysis of a stand-alone photovoltaic power plant. IEEE J. Photovolt. 3(2), 776–784 (2013)

    Article  Google Scholar 

  2. Chiu H.-J., Lo Y.-K., Yao C.-J. et al.: Design and implementation of a photovoltaic high-intensity-discharge street lighting system. IEEE Trans. Power Electron. 26(12), 3464–3471 (2011)

    Article  Google Scholar 

  3. Nasiri A., Zabalawi S.A., Mandic G.: Indoor power harvesting using photovoltaic cells. IEEE Trans. Ind. Electron. 56(11), 4502–4509 (2009)

    Article  Google Scholar 

  4. Lee J.H., Bae H.S., Cho B.H.: Resistive control for a photovoltaic battery. IEEE Trans. Ind. Electron. 55(7), 2767–2775 (2008)

    Article  Google Scholar 

  5. Kharzi. S, Haddadi M., Malek A., Barazane L., Krishan M.M.: Optimized design of a photovoltaic cathodic protection. Arab. J. Sci. Eng. 34(2B), 477–489 (2009)

    Google Scholar 

  6. Ballouti A., Djahli F., Bendjadou A., Belhaouchet N., Benhamadouche A.: MPPT system for photovoltaic module connected to battery adapted for unstable atmospheric conditions using VHDL-AMS. Arab. J. Sci. Eng. 39(3), 2021–2031 (2014)

    Article  Google Scholar 

  7. Balathandayuthapani S., Edrington C.S., Henry S.D. et al.: Analysis and control of a photovoltaic system: application to a high-penetration case study. IEEE Syst. J. 6(2), 213–219 (2012)

    Article  Google Scholar 

  8. Ropp M.E., Gonzalez S.: Development of a MATLAB/Simulink model of a single-phase grid-connected photovoltaic system. IEEE Trans. Energy Convers. 24(1), 195–202 (2009)

    Article  Google Scholar 

  9. Villanueva E., Correa P., Rodríguez J. et al.: Control of a single-phase cascaded H-bridge multilevel inverter for grid-connected photovoltaic systems. IEEE Trans. Ind. Electron. 56(11), 4399–4406 (2009)

    Article  Google Scholar 

  10. Calais M., Agelidis V.G., Dymond M.S.: A cascaded inverter for transformerless single- phase grid-connected photovoltaic systems. Renew. Eng. 22, 255–262 (2001)

    Article  Google Scholar 

  11. Peng F.Z.: Z-source inverter. IEEE Trans. Ind. Appl. 39(2), 504–510 (2003)

    Article  Google Scholar 

  12. Bakar, M.S.; Rahim, N.A.; Ghazali, K.H.; et al.: Z-source inverter pulse width modulation: a survey. Int. Conf. on Elect. Control Comput. Eng., Pahang, Malaysia June 21-22, pp. 313–316 (2011)

  13. Peng F.Z., Shen M., Qian Z.: Maximum boost control of the Z-source inverter. IEEE Trans. Power Electron. 20(4), 833–838 (2005)

    Article  Google Scholar 

  14. Zare, F.; Firouzjaee, J.A.: Hysteresis band current control for a single phase Z-source inverter with symmetrical and asymmetrical Z-network. power conversion. Conf. Nagoya, April 2–5, pp. 143–148 (2007)

  15. Hanif M., Basu M., Gaughan K.: Understanding the operation of a Z-source inverter for photovoltaic application with a design example. IET Power Electron. 4(3), 278–287 (2011)

    Article  Google Scholar 

  16. Rajakaruna S., Jayawickrama L.: Steady-state analysis and designing impedance network of Z-source inverters. IEEE Trans. Ind. Electron. 57(7), 2483–2491 (2010)

    Article  Google Scholar 

  17. Daniel S.A., Gounden N.A.: Simulation of photovoltaic array-driven electric machines with power electronic interfaces. Simulation 86(11), 699–711 (2010)

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Electrical and Electronics Engineering, National Institute of Technology, Tiruchirappalli, Tamil Nadu, India

    S. Krithiga & N. Ammasai Gounden

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  1. S. Krithiga
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  2. N. Ammasai Gounden
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Correspondence to N. Ammasai Gounden.

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Krithiga, S., Ammasai Gounden, N. An Improved Power Electronic Controller with Unity Power Factor for a Single-Stage Grid-Tied PV System. Arab J Sci Eng 39, 7173–7182 (2014). https://doi.org/10.1007/s13369-014-1268-3

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  • DOI: https://doi.org/10.1007/s13369-014-1268-3

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