Parallel power processing topology for solar PV applications

A high efficiency converter topology for extracting maximum power from a photovoltaic (PV) module to charge standalone storage devices is presented in this paper. A reversed buck-boost converter enabling parallel power processing with a power switch referenced to the common return is the main core of the charging system. Small signal analysis of the proposed charging system is carried out to facilitate the design of a compensator for the maximum power point (MPP) tracking. The simulation and experimental results confirmed the validity of the model, and verified the high efficiency system operation with MPP tracking. The use of the PPP with the split loads is also presented, which would improve the size, efficiency and step down duty ratio of the converters.

[1]  Johan Enslin,et al.  An experimental evaluation of MPPT converter topologies for PV installations , 1993 .

[2]  Mike Ropp,et al.  Comparative study of maximum power point tracking algorithms using an experimental, programmable, maximum power point tracking test bed , 2000, Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036).

[3]  Tsutomu Hoshino,et al.  Maximum photovoltaic power tracking: an algorithm for rapidly changing atmospheric conditions , 1995 .

[4]  Hongwen He,et al.  Evaluation of Lithium-Ion Battery Equivalent Circuit Models for State of Charge Estimation by an Experimental Approach , 2011 .

[5]  P.L. Chapman,et al.  Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques , 2007, IEEE Transactions on Energy Conversion.

[6]  Adel M. Sharaf,et al.  A novel maximum power fuzzy logic controller for photovoltaic solar energy systems , 2008 .

[7]  M. G. Wanzeller,et al.  Current control loop for tracking of maximum power point supplied for photovoltaic array , 2003, IMTC 2003.

[8]  A. Messai,et al.  FPGA-based real time implementation of MPPT-controller for photovoltaic systems , 2011 .

[9]  Andres Barrado,et al.  Evaluation of a new maximum power point tracker (MPPT) applied to the photovoltaic stand-alone systems , 2005 .

[10]  Slobodan Cuk,et al.  A general unified approach to modelling switching-converter power stages , 1977 .

[11]  Kostas Kalaitzakis,et al.  Development of an FPGA-based System for Real-Time Simulation of Photovoltaic Modules , 2009, Seventeenth IEEE International Workshop on Rapid System Prototyping (RSP'06).

[12]  H. Nehrir,et al.  Direct Energy Transfer for High Efficiency Photovoltaic Energy Systems Part I: Concepts and Hypothesis , 2009, IEEE Transactions on Aerospace and Electronic Systems.

[13]  Jongrong Lin,et al.  Implementation of a DSP-controlled photovoltaic system with peak power tracking , 1998, IEEE Trans. Ind. Electron..

[14]  F. Blaabjerg,et al.  A review of single-phase grid-connected inverters for photovoltaic modules , 2005, IEEE Transactions on Industry Applications.

[15]  Saad Mekhilef,et al.  Simulation and Hardware Implementation of Incremental Conductance MPPT With Direct Control Method Using Cuk Converter , 2011, IEEE Transactions on Industrial Electronics.

[16]  Z.J. Shen,et al.  New Physical Insights on Power MOSFET Switching Losses , 2009, IEEE Transactions on Power Electronics.

[17]  Kostas Kalaitzakis,et al.  Development of a microcontroller-based, photovoltaic maximum power point tracking control system , 2001 .

[18]  Richard Lee Hartmann,et al.  An Aging Model for Lithium-Ion Cells , 2008 .