New Combined Fuzzy-IC Variable Step Size MPPT Reducing Steady State Oscillations

  • Abdelghani HarragEmail author
  • Sabir Messalti
Conference paper
Part of the Lecture Notes in Networks and Systems book series (LNNS, volume 62)


In this paper, a combined fuzzy-IC variable step size MPPT controller has been proposed. The proposed MPPT uses the classical IC algorithm where the step size is drived using a fuzzy logic controller. The MPPT controller has been tested and validated under Matlab/Simulink environment where the model of the system including a Solarex MSX-60W module fed by DC-DC boost converter drived using the proposed combined fuzzy-IC controller has been implemented. The simulation results prove the performance of the proposed algorithm to reduce the steady state oscillation leading to the reduction of energy losses between 23.08% and 93.15%. In addition, the proposed MPPT controller improves the dynamic performances by reduction the response time between 54.39% and 82.64% as well as a reducing the overshoot between 10.47% and 33.53% which will reduce effectively the energy losses.


IC MPPT Fuzzy logic PV cell modeling Variable step size 


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© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.Optics and Precision Mechanics InstituteFerhat Abbas University - Setif 1SetifAlgeria
  2. 2.CCNS Laboratory, Department of Electronics, Faculty of TechnologyFerhat Abbas University - Setif 1SetifAlgeria
  3. 3.Electrical Engineering Department, Faculty of TechnologyMohamed Boudiaf UniversityMsilaAlgeria

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