Analysis and Design of Distributed MPPT System Suitable for Non-Uniform Solar Irradiation

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2015 by IJETT Journal
Volume-22 Number-9
Year of Publication : 2015
Authors : Kailash Krishna Prasad.B
DOI :  10.14445/22315381/IJETT-V22P288

Citation 

Kailash Krishna Prasad.B"Analysis and Design of Distributed MPPT System Suitable for Non-Uniform Solar Irradiation", International Journal of Engineering Trends and Technology (IJETT), V22(9),432-437 April 2015. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
Under the nonuniform solar insolation conditions, the photovoltaic (PV) power system exhibits a peculiar property of multimodal i-p or v-p characteristic and results in obtaining multiple local maxima and a global maximum power point (MPP). Due to the presence of such non ideal power characteristic, the conventional maximum power point tracking (MPPT) algorithms cannot track the actual global MPP successfully. Hence, this paper investigates and discusses the application of distributed MPPT (DMPPT) technique of approach, in order to capture the optimum global MPP effectively. This is ensured by analyzing the system’s dynamic performance and tracking abilities. Such condition is not only helpful in improving the tracking efficiency of the system, but also enhances the transient performance under rapidly changing nonuniform solar irradiation.

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Keywords
Distributed MPPT, Local maxima, Global MPP, Transient performance, Multimodal.