Photovoltaic system having power-increment-aided incremental-conductance maximum power point tracking controller using constant-frequency variable-duty control and method thereof

摘要

#$%^&*AU2012216771B220140313.pdf#####PHOTOVOLTAIC SYSTEM HAVING POWER-INCREMENT-AIDED INCREMENTAL-CONDUCTANCE MAXIMUM POWER POINT TRACKING CONTROLLER USING CONSTANT-FREQUENCY VARIABLE-DUTY CONTROL AND METHOD THEREOF 5 ABSTRACT OF THE DISCLOSURE The configurations of photovoltaic system and methods thereof are provided. The proposed photovoltaic system includes a PI-INC MPPT 10 controller using a constant-frequency variable-duty (CFVD) control and guided by an Ipv-Vpv curve and a Ppv-Vpv curve.R~ I~ Rs lPV Iph sh A D Rsh V Fig. 1(a)(Prior Art) 1000W/m 2 .. 8 ---- dV -240 p 2 7 --T - v -1210 6 - c16 180 600W/m2 TTZ 5 150 4 120 3 90 300W/m 2 2 ~~60 1 30 0 0 0 5 10 15 20 25 30 35 40 45 Vpv(V) Fig. 1(b)