Performance enhancement of photovoltaic systems with passive lossless cuk converter using non linear controller

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K. Kanimozhi
B. Raja Mohamed Rabi

Abstract

The A soft switched Cuk converter with Improved Perturb and Observe (P&O) based Maximum power point Tracker (MPPT) that uses a HybridSliding Mode (HSM) Controller is proposed to enhance performance of Photovoltaic (PV) generator. Conduction losses, voltage stress, and switching losses are reduced in soft switched Cuk converter by introducing a snubber cell which in turn improves Cuk converter efficiency. Sliding Mode Controller (SMC) is implemented in an Analog-Digital way. The main benefit of the proposed solution is that it is possible to split the sliding Mode (SM) control equation in two terms: the first one is characterized  by a combination of signals  wich can be defined as fast and a second part obtained by a combination of signals which can be defined as slow. The slower term suits the digital implementation because it van be treated as a linear control which works on the low frequency range and faster term implemented in analog way. Performance analysis of the Passive soft switched Cukconverter and conventional converter is ilustrated by simulation and experimental methods for various irradiation changes. Peak power is harvested from PV panel and optimal operating point is detected using HSM based MPPT method. The prototype model developed with SMP085P module validates the performance of modified Cuk converter.

 

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How to Cite
Kanimozhi, K., & Rabi, B. R. (2019). Performance enhancement of photovoltaic systems with passive lossless cuk converter using non linear controller. Journal of Applied Research and Technology, 17(4). https://doi.org/10.22201/icat.16656423.2019.17.4.855
Author Biographies

K. Kanimozhi

Department of Biomedical Engineering, Sethu Institute of Technology, Kariapatti, Tamilnadu, India

B. Raja Mohamed Rabi

Department of Electrical and Electronics Engineering, Sethu Institute of Technology, Kariapatti, Tamilnadu, India