Reactive Power Control for Grid Tied PVG System with ANN Based Transformerless Inverter
K. Ravikiran1, K.S. Srikanth2
1K. Ravikiran, M.Tech Research Scholar, Department of Electrical and Electronics Engineering, KL Deemed To be University, Green Fields, Vaddeswaram, Vijayawada (Andhra Pradesh), India.
2K.S. Srikanth, Professor, Department of Electrical and Electronics Engineering, KL Deemed To be University, Green Fields, Vaddeswaram, Vijayawada (Andhra Pradesh), India.
Manuscript received on 27 November 2019 | Revised Manuscript received on 15 December 2019 | Manuscript Published on 30 December 2019 | PP: 536-542 | Volume-9 Issue-2S3 December 2019 | Retrieval Number: B11271292S319/2019©BEIESP | DOI: 10.35940/ijitee.B1127.1292S319
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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: The Rise in power demand with growing population across the world has led to the development of renewable energy sources. Amongst all the renewable energy sources PV power generation system proves to be more superior and efficient than other renewable sources. Recent innovations in transformerless inverters have proven to be efficient and reliable than conventional ones. The major difficulty in handling the transformerless inverter is the leakage currents, which is for the reason that parasitic capacitance is in between PV array and ground. This leakage current leads to several protection issues along with unstable CM voltages. Here the recommendedtransformerless inverter aimed at grid connected PV system has capability to reduce leakage currents. It also provides the required reactive power to the system to maintain constant CM voltage. To provide high quality current injection in to the grid, PR controller and fuzzy controller are used. In this study the detailed analysis of the operating modes of the H6 PV transformer less inverter system, investigation of the leakage currents and outcomesobtained in MATLAB simulation are to be presented.
Keywords: Common Mode (CM), Parasitic Capacitance, Reactive Power, ANN Controller, Transformer Less Inverter.
Scope of the Article: Grid Networking/ Computing