PHOTOVOLTAIC MAXIMUM POWER POINT TRACKING USING SEPIC CONVERTER | ||||
| ERJ. Engineering Research Journal | ||||
| Article 5, Volume 32, Issue 4, October 2009, Page 437-445 PDF (822.88 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2009.69528 | ||||
 View on SCiNiTO | ||||
| Author | ||||
| Yousry Atia | ||||
| Electronics Research Institute; PV Cells Dept, El-Tahrir St., Do&, 12311-Giza, Egvpt | ||||
| Abstract | ||||
| In this paper a maximum power point hacking (MPPT) system based on the single ended primary inductor converter (SEPIC) and hill-climbimg approach is introduced. 'SEPIC converter is a comprehensive buck-boost converter and has minimum ripple content in the input current that suitable for PV application. The proposed MPPT system is designed and components of SEPIC converter are sized and selected. The conholler is so fast and no fluctuation around the MPP is introduced. A current and voltage of the PV array are sensed and a pulse width modulation (PWM) signal is produced from the controller to conhol the duty ratio of the converter. The simulation results show that three tests are carried out on the system; a suddenly insolation level increasing, decreasing, and load resistance variation. The controller establishes robustness for all the three cases and the maximum power available fiom the PV array are transferred to the load irrespective of load or environmental condition variations. | ||||
| Keywords | ||||
| Maximum Power Point Tracking; SEPIC Converter; DCDC Converter | ||||
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