A Comparative Analysis of Effective Control Methods For Pneumatic Servo Actuators
DOI:
https://doi.org/10.22399/ijcesen.663Keywords:
Pneumatic, Control Strategies, Position Control, Servo Actuator, Multi-Physics SimulationAbstract
The compressibility of air and the uncertainties present in real-world applications make pneumatic cylinders inherently nonlinear and challenging to control. These characteristics demand sophisticated control strategies to achieve accurate and reliable performance. This study compares four control strategies PID, SMC, PID_PWM, and SMC_PWM to determine their effectiveness for pneumatic servo actuators under industrial conditions. The research involved a thorough analysis of the system's mathematical model, which has been then simulated to replicate its dynamic behavior accurately. Each control strategy's performance has rigorously been tested in this simulation environment. An experimental setup has been constructed to validate these findings, allowing for real-world performance evaluation and comparison against the simulation results. Using the TOPSIS method for evaluation, the SMC control strategy has stood out as the most effective, with an average score of 0.9, demonstrating superior practicality and adherence to the predefined criteria. However, the other strategies also performed notably well, each offering distinct advantages depending on specific application scenarios. Given the observed position-dependent responses and varying error rates, the study suggests further exploration of hybrid control strategies to optimize overall system performance. Additionally, future research should focus on refining the parameters of similar control systems, validating these in simulation environments, and conducting comparative analyses with other advanced control methods to extend the study's depth.
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