PID control tuning via particle swarm optimization for coupled tank system

• Main Authors: Syed Hussien, Sharifah Yuslinda, Jaafar, Hazriq Izzuan, Selamat, Nur Asmiza, Daud, Fiona Serina, Zainal Abidin, Amar Faiz
• Format: Article
• Language: English
• Published: Blue Eyes Intelligence Engineering & Sciences Publication Pvt. Ltd. 2014
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utem.edu.my/id/eprint/12763/1/2014_Journal_IJSCE_B2253054214.pdf; http://eprints.utem.edu.my/id/eprint/12763/; https://www.ijsce.org/wp-content/uploads/papers/v4i2/B2253054214.pdf

This paper presents the use of meta-heuristic technique to obtain three parameters (KP, KI and KD) of PID controller for Coupled Tank System (CTS). Particle Swarm Optimization (PSO) is chosen and Sum Squared Error is selected as objective function. This PSO is implemented for controlling desired liquid level of CTS. Then, the performances of the system are compared to various conventional techniques which are Trial and Error, Auto-Tuning, Ziegler-Nichols (Z-N) and Cohen-Coon (C-C) method. Simulation is conducted within Matlab environment to verify the transient response specifications in terms of Rise Time (TR), Settling Time (TS), Steady State Error (SSE) and Overshoot (OS). Result obtained shows that performance of CTS can be improved via PSO as PID tuning methods.