Bacterial foraging-optimized PID control of a two-wheeled machine with a two-directional handling mechanism

K M Goher; S O Fadlallah

doi:10.1186/s40638-017-0057-3

Bacterial foraging-optimized PID control of a two-wheeled machine with a two-directional handling mechanism

Robotics Biomim. 2017;4(1):1. doi: 10.1186/s40638-017-0057-3. Epub 2017 Mar 23.

Authors

K M Goher¹, S O Fadlallah²

Affiliations

¹ Department of Informatics and Enabling Technologies, Lincoln University, Lincoln, New Zealand.
² Mechanical Engineering Department, Auckland University of Technology, Auckland, New Zealand.

Abstract

This paper presents the performance of utilizing a bacterial foraging optimization algorithm on a PID control scheme for controlling a five DOF two-wheeled robotic machine with two-directional handling mechanism. The system under investigation provides solutions for industrial robotic applications that require a limited-space working environment. The system nonlinear mathematical model, derived using Lagrangian modeling approach, is simulated in MATLAB/Simulink^® environment. Bacterial foraging-optimized PID control with decoupled nature is designed and implemented. Various working scenarios with multiple initial conditions are used to test the robustness and the system performance. Simulation results revealed the effectiveness of the bacterial foraging-optimized PID control method in improving the system performance compared to the PID control scheme.

Keywords: BFO; Inverted pendulum; Lagrangian modeling; PID; Two-directional handling; Two-wheeled machine.