Title :
A novel on-line MPP search algorithm for PV arrays
Author :
Altas, I.H. ; Sharaf, A.M.
Author_Institution :
Dept. of Electr. Eng., Karadeniz Tech. Univ., Trabzon, Turkey
fDate :
12/1/1996 12:00:00 AM
Abstract :
A novel maximum power point (MPP) search algorithm for photovoltaic (PV) array power systems is introduced. The proposed algorithm determines the maximum power point of a PV array for any temperature and solar irradiation level using an online procedure. The method needs only the online values of the PV array output voltage and current, which can be obtained easily by using just current and voltage transducers. The algorithm requires neither the measurement of temperature and solar irradiation level nor a PV array model that is mostly used in look-up table based algorithms. Satisfactory results were obtained with the proposed algorithm in a laboratory prototype implementation scheme consisting of a PV array computer emulation model, a chopper controlled permanent magnet DC motor, and a DT2827 data acquisition board with the ATLAB software drivers for interfacing
Keywords :
photovoltaic power systems; power system analysis computing; search problems; solar cell arrays; solar cells; ATLAB software drivers; DT2827 data acquisition board; PV array power systems; PV arrays; chopper control; computer emulation model; current transducers; interfacing; look-up table based algorithms; maximum power point search algorithm; online procedure; permanent magnet DC motor; solar irradiation level; temperature level; voltage transducers; Computer interfaces; Laboratories; Photovoltaic systems; Software algorithms; Software prototyping; Solar power generation; Table lookup; Temperature measurement; Transducers; Voltage;
Journal_Title :
Energy Conversion, IEEE Transactions on
