Z-source inverter based Photovoltaic power generation system

This paper presents a high performance, Z-source inverter topology for grid connected PV systems and also Synchronized Pulse-Width Modulation technique in single and three phase PWM inverter for Photovoltaic power generation system. Z-source inverter has buck-boost feature, which is possible because of additional shoot through state introduced in zero state of the conventional pulse width modulated inverter and provides desired output ac voltage. The two independent control variables, the shoot-through duty ratio and the modulation index are used to control the proposed system in order to provide the required voltage and power. Simulation of single and three phase system is carried out using MATLAB/SIMULINK package and the results are presented for Z-source inverter.

[1]  F.Z. Peng,et al.  Grid Interconnected Z-Source PV System , 2007, 2007 IEEE Power Electronics Specialists Conference.

[2]  Jin Wang,et al.  Constant boost control of the Z-source inverter to minimize current ripple and voltage stress , 2006, IEEE Transactions on Industry Applications.

[3]  Jan T. Bialasiewicz,et al.  Renewable Energy Systems With Photovoltaic Power Generators: Operation and Modeling , 2008, IEEE Transactions on Industrial Electronics.

[4]  Zhaoming Qian,et al.  Maximum boost control of the Z-source inverter , 2004, PESC 2004.

[5]  F.Z. Peng,et al.  Maximum boost control of the Z-source inverter , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[6]  Poh Chiang Loh,et al.  Pulse-width modulation of Z-source inverters , 2005, IEEE Transactions on Power Electronics.

[7]  V. P. Sundarsingh,et al.  Novel grid-connected photovoltaic inverter , 1996 .

[8]  D. J. Adams,et al.  Comparison of Traditional Inverters and Z-Source Inverter , 2005 .

[9]  Poh Chiang Loh,et al.  Pulse-width modulation of Z-source inverters , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..