Analysis and optimization of maximum power point tracking algorithms in the presence of noise

Alexander M. Latham, Robert Pilawa-Podgurski, Kofi M. Odame, Charles R. Sullivan

Research output: Contribution to journalArticle

Abstract

This paper analyzes the effect of noise on several maximum power point tracking (MPPT) algorithms for photovoltaic systems. Noise is an essential consideration for optimization of MPPT algorithms. For example, for a perturb and observe algorithm, the perturbation size must be big enough to produce a signal larger than the measurement noise; however, the larger the perturbation, the farther the system will deviate from the maximum power point in steady state. There is also a tradeoff with respect to tracking speed, as slower tracking allows for more averaging of the signals, mitigating the noise. The effect of noise and other parameters on tracking performance is quantified, leading to an optimization of the system parameters to provide the best tracking accuracy for a specified tracking speed. The performance of the various algorithms is compared, and the analysis is verified by both simulations and experiments.

Original languageEnglish (US)
Article number6256745
Pages (from-to)3479-3494
Number of pages16
JournalIEEE Transactions on Power Electronics
Volume28
Issue number7
DOIs
StatePublished - Jan 11 2013

Keywords

  • Maximum power point tracking (MPPT)
  • Noise
  • Photovoltaic (PV) systems

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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