Operating characteristics of the P&O algorithm at high perturbation frequencies for standalone PV systems

Mohammed A. Elgendy; Bashar Zahawi; David J. Atkinson

doi:10.1109/TEC.2014.2331391

Operating characteristics of the P&O algorithm at high perturbation frequencies for standalone PV systems

Mohammed A. Elgendy
, Bashar Zahawi
, David J. Atkinson

Electrical Engineering

Newcastle University
Desert Research Centre

Research output: Contribution to journal › Article › peer-review

183 Scopus citations

Abstract

The perturb and observe (P&O) algorithm is one of the most commonly utilized maximum power point tracking (MPPT) control schemes for photovoltaic (PV) generators. However, the operation of this algorithm at high perturbation frequencies, when the system response to MPPT perturbations is never allowed to settle, has not been given adequate attention in the literature. This paper characterizes system behavior in this mode of operation for standalone PV systems feeding resistive loads and motor-pump loads. Simulation and experimental results show that the P&O algorithm operating at a high perturbation frequency may offer higher energy utilization efficiency and better system performance, despite the resulting nonperiodic waveforms of the system.

Original language	British English
Article number	6863632
Pages (from-to)	189-198
Number of pages	10
Journal	IEEE Transactions on Energy Conversion
Volume	30
Issue number	1
DOIs	https://doi.org/10.1109/TEC.2014.2331391
State	Published - Mar 2015

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

DC-DC power conversion
maximum power point tracking (MPPT)
photovoltaic (PV) power systems
PV pumping

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abstract = "The perturb and observe (P\&O) algorithm is one of the most commonly utilized maximum power point tracking (MPPT) control schemes for photovoltaic (PV) generators. However, the operation of this algorithm at high perturbation frequencies, when the system response to MPPT perturbations is never allowed to settle, has not been given adequate attention in the literature. This paper characterizes system behavior in this mode of operation for standalone PV systems feeding resistive loads and motor-pump loads. Simulation and experimental results show that the P\&O algorithm operating at a high perturbation frequency may offer higher energy utilization efficiency and better system performance, despite the resulting nonperiodic waveforms of the system.",

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Operating characteristics of the P&O algorithm at high perturbation frequencies for standalone PV systems

Abstract

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