Transformerless dc Converter for Distributed Solar Power Generation System
DOI:
https://doi.org/10.12962/j25796216.v1.i1.7Abstract
There are two types of distributed solar power generation system stand-alone system and grid-connected system. In grid-connected system usually are equiped with additional transformer to transfer the energy from solar power to the grid. However, it has resulted in considerable cost in providing these systems. Therefore in this reserach develops boost transformerless inverter system. The proposed system consists of a boost converter and transformerless inverter. Boost converter is used to increse the dc voltage yield by photovoltaic (PV) and delivered to the grid by mean of transformerless inverter.In order to maximize the power from PV, the proposed system is also designed with Maximum Power Point Tracking (MPPT) by changing the value of modulation index in the transformerless inverters. From the simulation results show that the system can work effectively in a variety conditions such as light intensity changed and fluctuating in the grid voltage side. Keywords: Inverter Transformerless, Boost Converter, MPPT, Photovoltaic.References
Jia-Min Shen, Hurng-Liahng Jou, and Jinn-Chang Wu, "Novel transformerless grid-connected power converter with negative grounding for photovoltaic generation system", IEEE Trans. Power Electron., vol.
, no. 4, Apr. 2012.
Rashid, Muhammad H."Power Electronics: Circuits, Devices, and Applications", Pearson Prentice Hall. 2009.
Solarex."MSX-60 and MSX-64 Photovoltaic Modules", USA, 1998.
Safi’i, A.Y., “Design and simulation full bridge converter DC link voltage to regulate the dispersed generation systems using fuel cellsâ€, Teknik Elektro ITS, Surabaya, Juli, 2011.
Widodo, Rusminto T., Rugianto, Asmuniv, Sejati, Purnomo, "Maximum Power Point Tracker Solar Cells Using Algorithms Observe and Perturb ", Politeknik Elektronika Negeri Surabaya-ITS, Surabaya, Indonesia.
Schimpf, F., Norum, L.E., “Grid connected converters for photovoltaic, state of the art, ideas for improvement of transformerless invertersâ€, Norwegian University of Science and Technology.
Riawan D.C., “Grid-Connected Buck-Boost Inverter for Variable Speed WECS Applicationsâ€, Chapter 5, Curtin University of Technology, Perth, Western Australia, 2010.
