Maximum-power-tracking using positive feedback

Certain recent publications report the use of switching power converters, supplied by photovoltaic arrays and employing positive feedback, as maximum power trackers. This paper explains the principle applied, and compares it to other known approaches. A simplified mathematical model that can be used for evaluation of the performance, is derived. Possible improvements are suggested.<<ETX>>

[1]  J.J. Schoeman,et al.  A simplified maximal power controller for terrestrial photovoltaic panel arrays , 1982, 1982 IEEE Power Electronics Specialists conference.

[2]  H.J. Beukes,et al.  Analysis of a new compound converter as MPPT, battery regulator and bus regulator for satellite power systems , 1993, Proceedings of IEEE Power Electronics Specialist Conference - PESC '93.

[3]  Johan Enslin,et al.  Simplified maximum power point controller for PV installations , 1993, Conference Record of the Twenty Third IEEE Photovoltaic Specialists Conference - 1993 (Cat. No.93CH3283-9).

[4]  Johan Enslin,et al.  Economical, PV maximum power point tracking regulator with simplistic controller , 1993, Proceedings of IEEE Power Electronics Specialist Conference - PESC '93.

[5]  A.S. Kislovski.  Maximum power point monitor , 1990, 12th International Conference on Telecommunications Energy.

[6]  Johan Enslin,et al.  Simplified feed-forward control of the maximum power point in PV installations , 1992, Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation.

[7]  A.S. Kislovski.  Dynamic behaviour of a constant-frequency buck power cell in a photovoltaic battery charger with a maximum power tracker , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[8]  A. Boehringer.  Self-Adapting dc Converter for Solar Spacecraft Power Supply Selbstanpassender Gleichstromwandler für die Energieversorgung eines Sonnensatelliten , 1968, IEEE Transactions on Aerospace and Electronic Systems.