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Novel maximum-power-point-tracking controller for photovoltaic energy conversion system

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3 Author(s)
Yeong-Chau Kuo ; Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan ; Tsorng-Juu Liang ; Jiann-Fuh Chen

A novel maximum-power-point-tracking (MPPT) controller for a photovoltaic (PV) energy conversion system is presented. Using the slope of power versus voltage of a PV array, the proposed MPPT controller allows the conversion system to track the maximum power point very rapidly. As opposed to conventional two-stage designs, a single-stage configuration is implemented, resulting in size and weight reduction and increased efficiency. The proposed system acts as a solar generator on sunny days, in addition to working as an active power line conditioner on rainy days. Finally, computer simulations and experimental results demonstrate the superior performance of the proposed technique

Published in:

IEEE Transactions on Industrial Electronics  (Volume:48 ,  Issue: 3 )