Design and Realization of Voltage lift Luo Converter with PID controller for Solar Power

Abstract

The paper focuses on one of the DC-to-DC converters namely Voltage-lift Luo converter which enhances minimal input ripple, higher voltage gain, higher power density and higher efficiency for photovoltaic applications. There are different types of Luo converters. Voltage lift Luo converters produce output voltage using arithmetic progression. The storage battery is utilized for the standalone PV system. In this study, PID controller is used with a Luo converter for closed loop control operation to attain a more effective output. The solar panel output which is DC is first fed into the Luo converter. The Luo converter steps up or steps down the input voltage as needed to match the battery to get charged and the output voltage is again fed to the PID controller for control. The software MATLAB/SIMULINK is used for the circuit simulation and hardware is implemented for the same. The circuit of Luo converter with PV without PID is also simulated and hardware is implemented. It is inferred that the Luo converter with PID converter for PV application performs better than that of without PID. The simulation results and real time hardware results are compared in this paper.