Development of a Control Scheme for Grid Connected Solar Inverter
Aishwarya Banerjee1, Tapas Kumar Saha2, Mohd Afroz Akhtar3
1Aishwarya Banerjee, Department of Electrical Engineering, National Institute of Technology, Durgapur (West Bengal), India.
2Tapas Kumar Saha, Department of Electrical Engineering, National Institute of Technology, Durgapur (West Bengal), India.
3Mohd Afroz Akhtar, Department of Aero System Laboratory, Central Mechanical Engineering Research Institute, Durgapur (West Bengal), India.
Manuscript received on 04 August 2019 | Revised Manuscript received on 27 August 2019 | Manuscript Published on 05 September 2019 | PP: 293-297 | Volume-8 Issue-2S7 July 2019 | Retrieval Number: B11150782S719/2019©BEIESP | DOI: 10.35940/ijrte.B1115.0782S719
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Now-a-days the renewable energy sources (RES) are going under development, research and implementation to serve the civilization. Solar energy is the most easily available RES. A solar grid connected scheme, consists of the photovoltaic (PV) module, voltage step up converter, and DC to AC converter is discussed in this work. The control technologies like (i) maximum power point tracking (MPPT), (ii) grid synchronization and (iii) sinusoidal current injection into the grid are considered in this work. The Incremental Conductance (IC) technique is used here to attain the MPPT of the PV arrangement. A Second Order Generalized Integrator (SOGI) based PLL is developed to collect the grid voltage phase angle for synchronizing with the inverter. A Proportional-Resonant (PR) based controller is developed for regulating the exchange of power with the single phase grid as well as to reduce harmonic distortions in injected current.
Keywords: H-bridge Inverter, Photovoltaic, Phase Locked Loop (PLL), Proportional Resonant (PR) Controller.
Scope of the Article: Smart Grid Communications