Author : Amit Kumar Tiwari 1
Date of Publication :17th May 2017
Abstract: the objective of the present work is to obtain a three level ac output, which is obtained by a 4-stage, 3-level multilevel inverter. An inverter receives dc supply for its input and produces ac output. It stepped up to 220 V, 50 Hz single-phase ac supply with the help of a step up transformer with E/I core with a resulting given input of 12V. Using a simple L-C filter at the rectifier output terminals the obtained dc supply can be made ripple free. The circuit consists of 4 MOSFET’s which requires more current and generate heat and to dissipate heat sink, which is fabricated in aluminum. The obtained dc from the renewable sources i.e., Solar Panel, Wind Mill and Hydro Mill is directly fed to the dc to dc converter which boost up the input power and this is fed to the battery with the capacity of 12V, 24 AHC. Simulation of the firing pulse generation circuit and multilevel inverter was done using MATLAB 13a and Simulink. Since we are using Hybrid inverter, to establish the communication, ARM Processor (LPC2148) and GSM (SIM900A) module is used to provide access of the user to the model i.e., controlling its mode of control of operation.
Reference :
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[1] Mohammad Ahmad and B.H. Khan, Senior Member, IEEE “New Approaches for harmonic reduction in solar inverters”
[2] J. Rodriguez. J.-S. Lai, and F.Z. Peng, “Multilevel inverters: A survey of topologies, controls and applications,” IEEE Trans. Ind. Electron. vol. 49, No. 4, pp. 724-738, Aug.
[3] Ebrahim Babaei, Member, IEEE, Sara Laali, Student Member, IEEE, and Zahra Bayat” A single phase cascaded multilevel inverter based on a new basic unit with reduced number of power swithes.
[4] MariuszMalinowaski, Senior Member, IEEE, K.Gopakumar, Senior Member, IEEE, Jose Rodriguez, Senior Member, IEEE, and Marcelo A.Perez, Member IEEE “A Survey on Cascaded Multilevel Inverters”.
[5] Gobinath.K1, Mahendran.S2, Gnanambal.I3 “New cascaded H-bridge multilevel inverter with improved efficiency.” International journal of advanced research in Electrical, Electronics and Instrumentation Engineering Vol.2, issue 4, April 2013.
[6] MithunKuriakose, Anooja V S “Comparison of Performances of Switched DC Sources Inverter and Cascaded H-bridge Inverter”,International Journal of Science, Engineering and Technology Research, Volume 3, Issue 9, September2014.
[7] C. Govindaraju and K. Baskaran, Member, IEEE” Efficient Sequential Switching HybridModulation Techniques for Cascaded Multilevel Inverters” vol. 26, no. 6, June 2011.