This paper present a MATLAB-SIMULINK model of a single phase 2.5 KVA, 240V RMS controlled PV VSI (Photovoltaic Voltage Source Inverter) inverter using IGBTs (Insulated Gate Bipolar Transistor). The behavior of output voltage, output current, and the total harmonic distortion (THD), with the variation in input dc blocking capacitor (Cdc), for linear and non-linear load has been analyzed. The values of Cdc as suggested by the other authors in their papers are not clearly defined and it poses difficulty in selecting the proper value. As the dc power stored in Cdc, (generally placed parallel with battery) is used as input to the VSI inverter. The simulation results shows the variation in the output voltage and current with different values of Cdc for linear and non-linear load connected at the output side of PV VSI inverter and suggest the selection of suitable value of Cdc.<\/p>\r\n","references":"[1] N. Mohan, T.M. Undeland, W.P. Bobins, \"Power Electronics-\r\nConvererters, Applications and Designs\". 2nd edition, John Wiley &\r\nSons, 1995.\r\n[2] T. Philip, \"Elernents of Powel. Electronics\". Oxford University Press,\r\n1998.\r\n[3] Sunil Kumar Chaudhry, Z.A. Jaffery, and V.K. Chandna, \"Quality Assessment\r\nof Low Cost Voltage Control Voltage Source Inverter (VCVS) using\r\nMatlab Simulink\". International Journal of Electrical Engineering, Vol. 3,\r\nNo. 1, pp. 15-24, 2010.\r\n[4] Vinay Kumar Chandna, Z.A. Jaffery, and Sunil Kumar Chaudhry, \"Simulation\r\nof Single Phase RMS Controlled Voltage Source Inverter (VSI)\r\nfor variation in Cdc, Cs and Rs\". IEEE International conference Power\r\nElectronics Drive and Energy System, PEDES 2010, 21-23 Dec., 2010.\r\n[5] G. Escobar, A.A. Valdez, J. Leyva-Ramos, and P. Mattavelli, \"Repetitivebased\r\ncontroller for a UPS inverter to compensate unbalance and\r\nharmonic distortion\". IEEE Trans. Ind. Electronics, Vol. 54, No. 1,\r\npp. 504-510, Feb. 2007.\r\n[6] J.F. Fuller, E.F. Fuchs, and K.J. Roesler, \"Influence of harmonics on power\r\ndistribution system protection\". IEEE Trans. Power Delivery, vol. 3, pp.\r\n549-557, Apr. 1988.\r\n[7] M.E. De Oliveira Filho, J.R. Gazoli, A.J.S. Filho, and E.R. Filho, \"A\r\ncontrol method for voltage source inverter without dc link capacitor\".\r\nPower electronics Specialists Conference, PESC 2008. IEEE 15-19,\r\npp. 4432-4437, June 2008.\r\n[8] R. Parikh and R. Krishnan, \"Modeling, simulation and analysis of an\r\nuninterruptible power supply\". in Proc. 20th Int. Conf. Ind. Electron.,\r\nControl Instrument., Vol. 1, pp. 485-490, Sep. 5-9, 1994.\r\n[9] M.K. Mishra, and K. Karthikeyan, \u00d4\u00c7\u00ffDesign and analysis of voltage source\r\ninverter for active compensators to compensate unbalanced and nonlinear\r\nloads\". International Power Engineering Conference, 2007. IPEC\r\n2007, pp. 649-654, 3-6 Dec. 2007.\r\n[10] Sangshin Kwak and H.A. Toliyat, H.A., \"Parallelized Inverters Configuration\r\nwith Current and Voltage Sources for High Power Applications\".\r\nIEEE, 37th Power Electronics Specialists Conference, PESC -06, 2006.\r\n[11] N. Abdel-Rahim and J.E. Quaicoe, \"Analysis and design of a multiple\r\nfeedback loop control strategy for single-phase voltage-source UPS\r\ninverters\". IEEE Trans. on Power Electronics, Vol. 11, No. 4, pp. 532-\r\n541, Jul. 1996.\r\n[12] M.J. Ryan, W.E. Brumsickle, and R.D. Lorenz, \"Control topology\r\noptions for single-phase UPS inverters\". IEEE Trans. Ind. Appl., Vol.\r\n33, No. 2, pp. 493-501, Mar. 1997.","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 56, 2011"}