Title :
Evaluation of incremental conductance MPPT algorithm at low perturbation rates
Author :
Elgendy, Mohammed A. ; Zahawi, Bashar ; Atkinson, David J.
Author_Institution :
Sch. of Electr., Electron., & Comput. Eng., Newcastle Univ., Newcastle upon Tyne, UK
Abstract :
This paper evaluates the incremental conductance (INC) maximum power point tracking (MPPT) algorithm using an experimental installation comprised of a 540-Wp photovoltaic array connected to a resistive load. Particular focus is given to the assessment of the two commonly utilized implementation techniques: reference voltage perturbation and direct duty ratio perturbation. The impact of algorithm parameters on system behaviour is investigated and the energy utilization efficiency is calculated for different weather conditions. The various advantages and drawbacks of each technique are identified.
Keywords :
electric admittance; maximum power point trackers; perturbation techniques; solar cell arrays; algorithm parameters; direct duty ratio perturbation; incremental conductance MPPT algorithm; incremental conductance maximum power point tracking algorithm; perturbation rates; photovoltaic array; reference voltage perturbation; resistive load; system behaviour; DC-DC power conversion; MPPT; Photovoltaic power systems;
Conference_Titel :
Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on
Conference_Location :
Manchester
Electronic_ISBN :
978-1-84919-815-8
DOI :
10.1049/cp.2014.0429
