The High-Gain Boost Converter for Maximum Power Point Tracking in Photovoltaic System
The aim of this paper is to introduce a high-gain Boost circuit and to use the maximum power model to analyze the principles of maximum power point tracking (MPPT) in photovoltaic (PV) system .The principle is applied to the high-gain Boost circuit and control circuit, through a specific MPPT algorithm to change the duty cycle of Boost circuit realizes maximum power tracking and higher DC output voltage, the control circuit are formed by the CPLD and the AVR microcontroller, through which the control circuit to generate a varying duty cycle and 40KHz PWM pulse to control High-gain Boost circuit. Algorithm uses the incremental conductance method. Experiments show that maximum power point tracking effect is good.
H. F. Tian et al., "The High-Gain Boost Converter for Maximum Power Point Tracking in Photovoltaic System", Advanced Materials Research, Vols. 383-390, pp. 2677-2684, 2012