Effective Fuzzy Logic Control of a Stand-alone Photovoltaic Pumping System

Year 2015, Volume: 5 Issue: 3, 677 - 685, 01.09.2015

Mohamed Bahloul Larbi Chrifi-alaoui Mansour Souissi Mohamed Chabaane Said Drid

Abstract

This paper presents an effective control of a stand-alone batteryless photovoltaic (PV) pumping system. The whole design (configuration and control) is oriented in order to minimize the cost and maximize the effectiveness, the efficiency and the reliability of the whole system. Beyond the withdrawal of the battery and the rotor speed sensor, the system is composed only of a DC-DC boost converter, a DC-AC inverter, an Induction Motor (IM) and a centrifugal pump. In order to control the dc-link voltage and maximize the efficiency of the IM, a Fuzzy Logic Controller (FLC) is introduced. The validity and the effectiveness of the proposed FLC is tested and confirmed by a simulation under various climate changes.

Keywords

Photovoltaic pumping system; Induction Motor; Efficiency optimization; Fuzzy logic.

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