A Modified Maximum Power Point Tracking with Constant Power Generation Using Adaptive Neuro-Fuzzy Inference System Algorithm

Abstract


 
 
 
 Renewable energy is being used to lessen the consumption of fossil fuels. Solar energy is a common source of renewable energy. Solar energy is the most promising source of energy due to its long-term sustainability and availability. The output power of solar panels is strongly influenced by the intensity of sunlight and the temperature of the solar panels. Maximum Power Point Tracking (MPPT) control, which aims to optimize the output power of solar panels, is commonly used to increase the efficiency of solar panels. However, MPPT control often causes overvoltage disturbance in systems directly connected to the load. To limit the output power of solar panels, additional Constant Power Generation (CPG) control is required. In this research, a solar panel system will be created to supply submersible DC pumps without any energy storage devices. DC-DC SEPIC Converter is designed with MPPT control combined with CPG control to limit the output power of the converter using the Adaptive Neuro-Fuzzy Inference System method by 150 watts. When the output power of the solar panel is less than the power limit, then MPPT mode will work. While CPG mode works when the PV output power is greater than the limit power. The results of this research showed that the system can provide optimal power generated by solar panels in MPPT mode by increasing efficiency by up to 33.04% and CPG mode can limit power to 150 Watts to avoid overvoltage disturbance at load.
 
 
 

PID Controller for DC-DC Converter under Dynamic Load Change in Photovoltaics based Low-Voltage DC Microgrid

“…Many studies report the effect of the fast response of the DC-DC converters. Several techniques require fast output response of the DC-DC converters whilst others do not, according to their technique [19], [20] However, when such parameters i.e., rise-time, settling-time are not complied the requirements, the voltage oscillation of the grid will impose the instability of the system. Almost the published methods are to investigate and evaluate the DC MG via computer simulation, and thus those above discussed parameters are generated by an ideal DC-DC converter which has high linearity of the outputs.…”