Analysis of SEPIC-Boost Converter Using Several PID Feedback Tuning Methods for Renewable Energy Applications
DOI:
https://doi.org/10.37934/araset.26.1.105117Keywords:
SEPIC-Boost converter, PID feedback, Ziegler-Nichols, renewable energyAbstract
Design of a SEPIC-Boost converter using PID feedback control is presented in this paper. The proposed design combines the key characteristics in SEPIC and Boost topology to increase the static gain in its operation and maintains its simple single switching technique. Several PID tuning methods are employed to investigate its effect on the converter design. Based on the analysis, modified Zeigler-Nichols tuning method has shown the best dynamic characteristic for the output. The generated outputs are 48V, 2A with ripple at 289.3mV indicating an extremely well-regulated output suitable for a lot of renewable energy applications. Fast settling time at 30.2ms without any overshoot and steady-state error is also achieved using this proposed design tuned with modified Ziegler-Nichols tuning method.