Analytical and experimental analysis of DC-DC converters in photovoltaic maximum Power Point Tracking applications

Maximum Power Point Trackers (MPPT) systems are essential devices employed to maximize the power flow from a photovoltaic module (or array) to a load. In most of applications, the MPPT is composed by a DC-DC converter interposed between the referred photovoltaic module and load. Among the main DC-DC converters, the Buck-type and Boost-type are not proper for this purpose, since they cannot ensure that the operating point will match the maximum power point for all radiation and temperature conditions. On the other hand, as it will be demonstrated theoretically and by experimentation, the Buck-Boost, Cúk, Sepic, Zeta, or any other DC-DC converter with static transfer characteristic given by D/(1-D), are the natural solution in Maximum Power Point Tracking applications.

[1]  N. Dasgupta,et al.  A Simple Single-Sensor MPPT Solution , 2007, IEEE Transactions on Power Electronics.

[2]  A. Bakhshai,et al.  An MPPT Controller Design for Photovoltaic (PV) Systems Based on the Optimal Voltage Factor Tracking , 2007, 2007 IEEE Canada Electrical Power Conference.

[3]  D. Shmilovitz,et al.  A Modified MPPT Scheme for Accelerated Convergence , 2008, IEEE Transactions on Energy Conversion.

[4]  Roberto F. Coelho,et al.  A study of the basic DC-DC converters applied in maximum power point tracking , 2009, 2009 Brazilian Power Electronics Conference.

[5]  Marcelo G. Villalva,et al.  Analysis and simulation of the P&O MPPT algorithm using a linearized PV array model , 2009, 2009 35th Annual Conference of IEEE Industrial Electronics.

[6]  E.D. Aranda,et al.  Measuring the I-V curve of PV generators , 2009, IEEE Industrial Electronics Magazine.

[7]  Roberto F. Coelho,et al.  A proposed photovoltaic module and array mathematical modeling destined to simulation , 2009, 2009 IEEE International Symposium on Industrial Electronics.