Controller Design Based on Internal Model Applied in a Quadratic Boost Converter with P&O MPPT E. N. Chaves, G. P. Viajante, M. A. A. Freitas, L. S. Villefort, H. T. de Moura, L. C. G. de Freitas, E. A. A. Coelho   2018/04/20

Abstract

This paper presents the controller design used in the inner loop of the Perturb and Observe (P&O) type of maximum power point tracking (MPPT) algorithm to control the output voltage of photovoltaic panels, from a DC-DC quadratic boost converter. The use of such a converter is based on the need to extend the DC-DC conversion range and acquire a quadratic dependence of the output voltage in relation to the duty cycle. In order to investigate a method that improves the controllability of this DC-DC converter, the design of an internal model based controller with 1 degree of freedom is proposed, and its performance is evaluated through experimental results that support the viability of its application.

Authors and affiliations

E. N. Chaves1, G. P. Viajante1, M. A. A. Freitas1, L. S. Villefort2, H. T. de Moura2, L. C. G. de Freitas2, E. A. A. Coelho2
1. Federal Institute of Education, Science and Technology of Goiás. Energy Systems Research Center (Núcleo de Pesquisas em Sistemas de Energia - NuPSE)
2. Electric Drives Laboratory, Federal University of Uberlândia. Campus Santa Mônica, Uberlândia-MG, Brasil.

Key words

Internal Model Control, Maximum Power Point Tracking, Photovoltaic Generation, Quadratic Boost Converter.

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