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Master Thesis-Aida9-final.pdf (2.43 MB)

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Quasi Z-Source-Based Multilevel Inverter For Single Phase Photo Voltaic Applications

Gorgani, Aida, Gorgani
http://rave.ohiolink.edu/etdc/view?acc_num=akron1471615403

Abstract Details

2016, Master of Science, University of Akron, Electrical Engineering.
This thesis presents a PV system for single-phase applications. A multilevel DC link (MLDCL) structure and a single-phase H-bridge are used. To regulate the PV voltage, a quasi Z-Source converter is used in each unit of the MLDCL. Several quasi Z-source half-bridge converters are connected in series to produce the required discrete voltage output levels of the MLDCL. A detailed design and analysis are applied to a 180 W single phase stand-alone PV system using three cascaded half-bridge quasi Z-source converters and a 60 Hz H-bridge single-phase inverter. Each quasi Z-source module in the proposed structure has the advantage of having an independent control scheme, so that each unit can effectively achieve maximum power point (MPP) from the individual PV panels. The complete system is simulated using MATLAB/Simulink to verify the proposed concept and the theoretical analysis. In the simulations, the incremental conductance method is used as the Maximum Power Point Tracking (MPPT) scheme. The feasibility of the proposed topology is also confirmed through a 60-W experimental setup. The simulation and experimental results are discussed to verify the analysis. The simulations and experiments also confirm that the quasi Z-source structures allow the use of fewer switches and the use of capacitors with lower voltage ratings than traditional buck/boost or Z-source implementations.
Malik Elbuluk (Advisor)
Yilmaz Sozer (Committee Member)
Veillette Robert (Committee Member)
77 p.
Electrical Engineering; Engineering
Photovoltaic System; Quasi Z Source based Multilevel Inverter; Maximum Power Point Tracking

Recommended Citations

Citations

  • Gorgani, Gorgani, A. (2016). Quasi Z-Source-Based Multilevel Inverter For Single Phase Photo Voltaic Applications [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1471615403

    APA Style (7th edition)

  • Gorgani, Gorgani, Aida. Quasi Z-Source-Based Multilevel Inverter For Single Phase Photo Voltaic Applications. 2016. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1471615403.

    MLA Style (8th edition)

  • Gorgani, Gorgani, Aida. "Quasi Z-Source-Based Multilevel Inverter For Single Phase Photo Voltaic Applications." Master's thesis, University of Akron, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1471615403

    Chicago Manual of Style (17th edition)

akron1471615403
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© 2016, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.