Title: Design and experimental investigations of dynamic sliding-mode control strategy with dynamic sliding manifold for control systems

Authors: A.R. Laware; S.A. Deokar; A.N. Sarwade; V.S. Bandal; M.H. Nerkar

Addresses: Department of Electrical Engineering, Dr. Vithalrao Vikhe Patil College of Engineering, Savitribai Phule Pune University, Ahmednagar, Pune, India ' SSPM, Sharadchandra Pawar College of Engineering and Technology, Someshwarnagar, Baramati, Pune, India ' Sinhgad College of Engineering, Vadgaon (Budruk), Pune, India ' Government Polytechnic, Pune, India ' Dr. Vithalrao Vikhe Patil College of Engineering, Savitribai Phule Pune University, Ahmednagar, Pune, India

Abstract: The chattering in control signal, response time, process parameter variability and stability are the issues in a classical sliding-mode control (SMC). The paper synthesises a dynamic sliding-mode controller (DySMC) to improve the performance of process control plants and thereby alleviating chattering effect. The stability condition is proven via direct Lyapunov candidate function. The proposed designs have been tested to temperature control system and second-order servo plant while real-time experimental tests are carried out for level control system. The efficacy of proposed design is assessed for four error-based performance indices. Simulation and experimental result reveals the superiority of proposed strategy over classical SMC, global SMC (GSMC) and normal terminal SMC (NTSMC) in terms of time-domain specifications, error-based performance indices, multiple reference-point tracking and disturbance rejection capability. The simulation and real-time experimental tests explore improvements in time-domain specifications and error-based performance indices.

Keywords: classical sliding-mode controller; chattering; dynamic sliding-mode controller; error-based performance indices; normal terminal sliding mode controller; real-time experimentation.

DOI: 10.1504/IJAAC.2026.152116

International Journal of Automation and Control, 2026 Vol.20 No.2, pp.133 - 168

Received: 15 Jan 2024
Accepted: 23 Aug 2024
Published online: 09 Mar 2026 *

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