Voltage Profile Improvement of Distribution System using Dynamic Evolution Controller for Boost Converter in Photovoltaic System
Sheeba Jeba Malar J1, Jayaraju M.2
1Sheeba Jeba Malar.J, Department of Electrical and Electronics, John Cox Memorial CSI Institute of Technology, Kerala, India.
2Jayaraju Madhavan, Department of Electrical and Electronics, MES Engineering College Kollam Kerala, India.
Manuscript received on 10 December 2017 | Revised Manuscript received on 18 December 2017 | Manuscript Published on 30 December 2017 | PP: 10-15 | Volume-7 Issue-2, December 2017 | Retrieval Number: B5229127217/17©BEIESP
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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 existing electrical network faces problem for control and operation, since the power flow from the PV system is inconstant and hence there will be voltage fluctuation in the AC grid. This study focuses on the analysis of PV system connected to the utility grid through boost converter whose duty cycle is generated by Dynamic Evolution Controller (DEC) that applies the control law which is a function of input voltage, output voltage and inductor current, that generates a control signal which will be applied to the boost converter in such a way that it takes the voltage to a value which will operate the PV at its maximum power. The constant DC voltage thus obtained is converted to AC by using an inverter before connecting to the grid. To check the voltage variation due to the injection of PV and the effect of DEC, load flow analysis is done on IEEE 33 bus radial distribution system by connecting it in the weaker bus. The simulation is done using MATLAB/SIMULINK and the results shows that there is considerable improvement in system voltage profile at the terminal nodes in the radial distribution system than the rest of the nodes
Keywords: Radial Distribution System, Photo Voltaic Source, Dynamic Evolution Controller, Boost Converter, Duty Cycle
Scope of the Article: Foundations Dynamics