Comparison of directly connected and constant voltage controlled photovoltaic pumping systems

Mohammed Ali Elgendy, Bashar Zahawi, David John Atkinson

Research output: Contribution to journalArticlepeer-review

158 Scopus citations

Abstract

This paper presents a comparative investigation of the performance characteristics of a directly connected photovoltaic (PV) pumping system and a scheme utilizing a constant voltage maximum power point tracking algorithm. A simple and accurate model is developed for each individual component of the system based on its measured characteristics and the system is simulated numerically. System performance is analyzed and energy utilization efficiency is calculated for different weather conditions. A detailed comparison identifying the advantages and drawbacks of each technique is presented. Experimental results obtained using a 1080-Wp PV array connected to a 1-kW permanent magnet dc motor-centrifugal pump set show very good agreement with the numerical simulation of the systems.

Original languageBritish English
Article number5484622
Pages (from-to)184-192
Number of pages9
JournalIEEE Transactions on Sustainable Energy
Volume1
Issue number3
DOIs
StatePublished - Oct 2010

Keywords

  • DCDC power conversion
  • photovoltaic (PV) power systems
  • photovoltaic (PV) pumping

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