consideration of the current-voltage (i-v) characteristics variations of solar modules with temperature and irradiations variations is basic for maximum power point tracking (mppt). having a simple and accurate mathematical model for the optimize utilization of the solar modules is essential. in this paper, a novel modeling of photovoltaic systems with novel coefficients is proposed for mathema...

For a world where energy demand is increasing day by day, available resources are constantly decreasing. At this point, it very important to be able benefit from the sun, which main source, with minimum damage environment. It possible produce electricity directly sunlight through PV panels. Due limited efficiency of these panels, MPPT algorithms always required. In study, Sliding Mode Control (...

the graphical technique for nonlinear circuits was described that enable us to optimize circuits to obtain maximum output power, maximum efficiency or minimum intermodulation. according to this method a high power amplifier in the ka band was designed. using a nonlinear model of the transistor, optimum slope for load-line was determined so that maximum power at the output was obtainable, then ...