A Modified Perturb-and-Observe Control for Improved Maximum Power Point Tracking Performance on Grid-Connected Photovoltaic System
This paper deals with the control of maximum power production in a grid-connected photovoltaic system. The on-grid system ensures the continuity of electricity supply to consumers. It also offers less investment and operation cost due to the removal of battery requirements normally indispensable...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2024-01-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/5316 |
| Summary: | This paper deals with the control of maximum power
production in a grid-connected photovoltaic system. The on-grid system ensures
the continuity of electricity supply to consumers. It also offers less
investment and operation cost due to the removal of battery requirements
normally indispensable to guarantee supply continuity. To maintain the maximum
output power production of photovoltaic panels regardless of changes in
irradiation, proper control of the boost converter is necessary. The known
perturb-and-observe method is explored and modified to improve performance. The
modification is proposed by adding the measurement of the current variable to
reduce the oscillation around the maximum power point once it is achieved. The
connection to an existing single-phase alternating-current power grid is
accomplished by implementing sinusoidal pulse-width modulation on the inverter.
Phase-angle synchronization between the inverter output and the existing power
grid is accomplished by using the phase-lock loop technique. Simulation of the
proposed method showed that an improvement of the photovoltaic function up to
98% has been achieved. |
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| ISSN: | 2086-9614 2087-2100 |