Design & Implementation of Compact-Integrated Solar-PV Symmetric Multilevel Inverter Topology for RES Applications
Ch. Punya Sekhar1, P. V. Ramana Rao2, M. Uma Vani3

1Ch. Punya Sekhar, Research Scholar, Department of Electrical & Electronics Engineering, JNTU, Kakinada (Andhra Pradesh), India.
2Dr. P. V. Ramana Rao, Professor and HOD, Department of Electrical & Electronics Engineering, Achraya Nagarjuna University, Guntur (Andhra Pradesh), India.
3Dr. M. Uma Vani, Professor and HOD, Department of Electrical Electronics Engineering, LBRCE, Mylavaram (A.P), India.

Manuscript received on 18 June 2019 | Revised Manuscript received on 25 June 2019 | Manuscript published on 30 June 2019 | PP: 769-776 | Volume-8 Issue-5, June 2019 | Retrieval Number: E7237068519/19©BEIESP
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Abstract: Multi-level inverter (MLI) engages the incredible recognition for high power-medium voltage apparatus and highly suitable for distributed-generation by utilizing renewable energy sources. In general multilevel inverter topologies acts as feasible substitute of formal 2-level inverters; there has been vital interest in the development of novel inverter structures. Several MLI structures incorporate the more switching devices which increases the complex design due to increased number of operating levels. This paper explores the novel single phase symmetric 5-level inverter topology is proposed and driving by both voltage pulse method/multi carrier pulse width modulation (PWM) technique. The proposed novel compact symmetric 5-level inverter topology offers fewer switches, gate drive circuits, reduced size, low cost, low harmonic profile, low switch stress and high efficiency over the formal topologies. The detailed simulation analysis of proposed 5-level inverter performance is conceded by MATLAB/SIMULINK software and feasibility has been evaluated by hardware-prototype model, results are illustrated.
Keywords: Distributed Generation, Multilevel Inverter, Simplified Multi Carrier PWM, Renewable Energy Sources, Solar-Photovoltaic, Total Harmonic Distortions

Scope of the Article: Renewable Energy Technology