Efficiency and Performance Optimization of Non-Ideal Synchronous Buck Converter Using MOMI Tuned PID Controller for Voltage Mode Control

International Journal of Electrical and Electronics Engineering

© 2024 by SSRG - IJEEE Journal

Volume 11 Issue 3

Year of Publication : 2024

Authors : Prasanna Bagdalkar, Layak Ali

10.14445/23488379/IJEEE-V11I3P126

How to Cite?

Prasanna Bagdalkar, Layak Ali, "Efficiency and Performance Optimization of Non-Ideal Synchronous Buck Converter Using MOMI Tuned PID Controller for Voltage Mode Control," SSRG International Journal of Electrical and Electronics Engineering, vol. 11,  no. 3, pp. 308-323, 2024. Crossref, https://doi.org/10.14445/23488379/IJEEE-V11I3P126

Abstract:

This paper investigates the performance of three different methods of tuning a PID controller-MOMI, Harriot, and Good-Gain for a non-ideal synchronous buck converter. The mathematical model is derived through state space averaging and small signal modelling techniques for accurate and realistic assessment of the tuning methods. The Simscape tool of MATLAB/Simulink facilitates closed-loop simulation. The results indicate that the MOMI method outperforms in terms of transient response and steady-state error under significant input voltage variations (up to 50%), demonstrating minimal overshoot (16%), quick settling time (2.7ms), and zero steady-state error. Also, under dynamic load conditions, the MOMI approach consistently demonstrates decreased overshoot in the output voltage and faster convergence to the steady-state value, signifying improved transient performance. Furthermore, the MOMI method shows the lowest error signal in tracking output reference voltage changes, indicating its superior tracking capability and rapid adaptation. This research contributes to the field of control systems by advancing the understanding of PID controller performance under different variations. It highlights the effectiveness of the MOMI method in achieving optimal performance. The study validates the critical role of tuning methods in the design of optimized PID controllers that strike a delicate balance between efficiency and performance.

Keywords:

DC-DC converter, Damped oscillation method, Magnitude Optimum Multiple Integration method, Proportional Integral Derivative (PID) controller, Non-ideal synchronous buck DC-DC converter.

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