A new method of current control strategy for grid connected photovoltaic (PV) system is presented in this paper. The connection of photovoltaic system with the grid is a difficult task as the solar irradiation is a nonlinear quantity. The objective of this work is to develop a model of the photovoltaic system with maximum power point tracking (MPPT) system connected to 11 KV grid by implementing new control technique so that maximum active power transfer from PV to grid can be taken place without injection of harmonics. The considered system consists of a PV system, MPPT controller, boost converter, voltage source inverter (VSI), 3-Φ filter, a control system, a distribution network, load and grid. In the beginning, a model of a photovoltaic array was developed and then a MPPT controller and a direct current to direct current (DC-DC) converter are designed. To connect PV system to grid, a power electronics converter is needed which can convert DC voltage into three- phase AC voltage. Three-phase VSI using insulated gate bipolar transistors (IGBTs) is used. By means of a step-up transformer and filter, this three-phase VSI is connected to the distribution network. The proposed control of the three-phase grid-connected solar PV system is designed in the synchronously-rotating d-q reference frame. Here, Vdc is measured, then compared with Vdcref and accordingly the error is fed to proportional-integral (PI) controller from which Idref is generated. As PV system should inject only active power, so reactive power injected to grid is made zero by making Iqref zero. There after the final model is simulated by using MATLAB/SIMULINK and different output waveforms are analyzed for different conditions. Finally the fault analysis is carried out to observe the behavior of the system.
| Published in | American Journal of Electrical Power and Energy Systems (Volume 5, Issue 4) |
| DOI | 10.11648/j.epes.20160504.12 |
| Page(s) | 35-44 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2016. Published by Science Publishing Group |
Grid-connected PV System, MPPT, Voltage Source Inverter (VSI), PWM Technique, LLLG Fault, MATLAB/Simulink
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APA Style
Prakash Kumar Hota, Babita Panda, Bhagabat Panda. (2016). Fault Analysis of Grid Connected Photovoltaic System. American Journal of Electrical Power and Energy Systems, 5(4), 35-44. https://doi.org/10.11648/j.epes.20160504.12
ACS Style
Prakash Kumar Hota; Babita Panda; Bhagabat Panda. Fault Analysis of Grid Connected Photovoltaic System. Am. J. Electr. Power Energy Syst. 2016, 5(4), 35-44. doi: 10.11648/j.epes.20160504.12
AMA Style
Prakash Kumar Hota, Babita Panda, Bhagabat Panda. Fault Analysis of Grid Connected Photovoltaic System. Am J Electr Power Energy Syst. 2016;5(4):35-44. doi: 10.11648/j.epes.20160504.12
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Download@article{10.11648/j.epes.20160504.12,
author = {Prakash Kumar Hota and Babita Panda and Bhagabat Panda},
title = {Fault Analysis of Grid Connected Photovoltaic System},
journal = {American Journal of Electrical Power and Energy Systems},
volume = {5},
number = {4},
pages = {35-44},
doi = {10.11648/j.epes.20160504.12},
url = {https://doi.org/10.11648/j.epes.20160504.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.epes.20160504.12},
abstract = {A new method of current control strategy for grid connected photovoltaic (PV) system is presented in this paper. The connection of photovoltaic system with the grid is a difficult task as the solar irradiation is a nonlinear quantity. The objective of this work is to develop a model of the photovoltaic system with maximum power point tracking (MPPT) system connected to 11 KV grid by implementing new control technique so that maximum active power transfer from PV to grid can be taken place without injection of harmonics. The considered system consists of a PV system, MPPT controller, boost converter, voltage source inverter (VSI), 3-Φ filter, a control system, a distribution network, load and grid. In the beginning, a model of a photovoltaic array was developed and then a MPPT controller and a direct current to direct current (DC-DC) converter are designed. To connect PV system to grid, a power electronics converter is needed which can convert DC voltage into three- phase AC voltage. Three-phase VSI using insulated gate bipolar transistors (IGBTs) is used. By means of a step-up transformer and filter, this three-phase VSI is connected to the distribution network. The proposed control of the three-phase grid-connected solar PV system is designed in the synchronously-rotating d-q reference frame. Here, Vdc is measured, then compared with Vdcref and accordingly the error is fed to proportional-integral (PI) controller from which Idref is generated. As PV system should inject only active power, so reactive power injected to grid is made zero by making Iqref zero. There after the final model is simulated by using MATLAB/SIMULINK and different output waveforms are analyzed for different conditions. Finally the fault analysis is carried out to observe the behavior of the system.},
year = {2016}
}
TY - JOUR T1 - Fault Analysis of Grid Connected Photovoltaic System AU - Prakash Kumar Hota AU - Babita Panda AU - Bhagabat Panda Y1 - 2016/09/29 PY - 2016 N1 - https://doi.org/10.11648/j.epes.20160504.12 DO - 10.11648/j.epes.20160504.12 T2 - American Journal of Electrical Power and Energy Systems JF - American Journal of Electrical Power and Energy Systems JO - American Journal of Electrical Power and Energy Systems SP - 35 EP - 44 PB - Science Publishing Group SN - 2326-9200 UR - https://doi.org/10.11648/j.epes.20160504.12 AB - A new method of current control strategy for grid connected photovoltaic (PV) system is presented in this paper. The connection of photovoltaic system with the grid is a difficult task as the solar irradiation is a nonlinear quantity. The objective of this work is to develop a model of the photovoltaic system with maximum power point tracking (MPPT) system connected to 11 KV grid by implementing new control technique so that maximum active power transfer from PV to grid can be taken place without injection of harmonics. The considered system consists of a PV system, MPPT controller, boost converter, voltage source inverter (VSI), 3-Φ filter, a control system, a distribution network, load and grid. In the beginning, a model of a photovoltaic array was developed and then a MPPT controller and a direct current to direct current (DC-DC) converter are designed. To connect PV system to grid, a power electronics converter is needed which can convert DC voltage into three- phase AC voltage. Three-phase VSI using insulated gate bipolar transistors (IGBTs) is used. By means of a step-up transformer and filter, this three-phase VSI is connected to the distribution network. The proposed control of the three-phase grid-connected solar PV system is designed in the synchronously-rotating d-q reference frame. Here, Vdc is measured, then compared with Vdcref and accordingly the error is fed to proportional-integral (PI) controller from which Idref is generated. As PV system should inject only active power, so reactive power injected to grid is made zero by making Iqref zero. There after the final model is simulated by using MATLAB/SIMULINK and different output waveforms are analyzed for different conditions. Finally the fault analysis is carried out to observe the behavior of the system. VL - 5 IS - 4 ER -
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