Fuzzy Logic Control for High-Frequency Switching in Photovoltaic SEPIC DC/DC Converters and Three-Phase Inverters.

This research paper focuses on the application of fuzzy logic control in the high-frequency switching control of SEPIC DC/DC converters and three-phase inverters for photovoltaic systems. The research is separated into two distinct sections. The first part entails the design and development of a prototype mechanism for a single-ended primary-inductor converter (SEPIC), which is utilized to manage the input voltage from the PV system. The operation of this SEPIC DC/DC converter incorporates real-time fuzzy logic control principles and methods. The second part involves the design and creation of a three-phase inverter mechanism (SVPWM) responsible for driving a three-phase induction motor. In a similar manner, fuzzy logic control principles and methods are independently employed for the operation control of this three-phase inverter. Both control mechanisms are integrated with the mathematical model of MATLAB/Simulink program and synchronized with the TMS320F28379D microcontroller in order to effectively regulate their respective functions. The evaluation and experimentation of the developed mechanisms demonstrate the successful regulation of input and output voltages for the SEPIC DC/DC Converter, as well as the efficient control of the three-phase induction motor's speed, torque, and power using the three-phase inverter. [ABSTRACT FROM AUTHOR]