In this study, we propose an advanced sliding mode control (SMC) technique for plants with time delays. In control engineering, the presence of time delays in a control system may cause it to become unstable. Furthermore, SMC cannot control systems having time delays. To solve this problem, we introduce a simple plant predictor to the SMC method. Therefore, our proposed method is designed easil...

This paper presents a torque ripple reduction approach to direct torque and flux control (DTFC) of an induction motor using a sliding-mode control (SMC) technique. A distinctive feature of the approach is that, by appropriately parametrizing and implementing the sliding-mode controller, the discontinuous nature of the actuator may be directly incorporated to the design process. The present pape...

This study examines the feasibility of applying adaptive fuzzy sliding mode control (AFSMC) strategies to reduce the dynamic responses of bridges constructed using a lead rubber bearing (LRB) isolation hybrid protective system. Recently developed control devices for civil engineering structures, including hybrid systems and semi-active systems, have been found to have inherent nonlinear propert...

The position of the DC motor is controlled by using a continuous sliding mode control (SMC), which is highly robust to the Coulomb friction torque and to high unknown payload variations, which involve changes in the rotational inertia of the motor shaft. The main contribution of the work is the experimentation of a SMC control which does not requires the knowledge of the payload variation range...

This study investigates a design procedure for a robust nonlinear control algorithm based on sliding mode control (SMC) to stabilize the attitude of a 3-DOF quadrotor UAV subject to external disturbances. Since traditional sliding mode controllers are sensitive against external disturbances in the reaching phase, a new algorithm is proposed to enhance the robust performance of an SMC strategy. ...

This study describes the direct torque control-DTC approach, based on Sliding Mode Control (SMC) technology with chattering reduction, for reducing ripple of Switched Reluctance Motor (SRM). The SRM control loop has been given SMC treatment to account low-frequency fluctuations in output. To maintain a consistent motor speed, sliding mode controller modifies value reference current. findings de...

This article discusses the use of Sliding Mode Control (SMC) for control a four-rotor vertical take-off and landing (VTOL) unmanned aerial vehicle (UAV). The Newton-Euler method is utilized to build quadcopter's dynamic model. model divided into under-actuated fully actuated subsystems. Even though controlling UAVs difficult owing their extremely nonlinear characteristics, previous experimental...

In this paper a Sliding Mode Control scheme (SMC) applied to the Permanent Magnet Synchronous Motor (PMSM) speed control is designed and improved. A Fuzzy logic algorithm is added to mitigate chattering caused by discontinuous term in steady states, and to ensure good performances of the controller in transient states. The proposed Fuzzy-SMC performance is tested in simulation and experimental ...

The paper presents a novel adaptive sliding mode fuzzy control strategy (AFSMC) for maintaining steam temperature in power plants. The AFSMC consists of a learning algorithm inspired by the sliding-mode control (SMC) and fuzzy gain scheduling integral control to compensate system offsets. The performance index for the learning algorithm has a similar structure to the switching variables derived...

In this paper, sliding mode controllers (SMC) are designed for a steerable tractor-trailer system, which is operating in the presence of longitudinal and lateral slips at front and rear wheels. Such vehicles intended for autonomous operations usually traverse at low speeds along straight lines. As very low accelerations are involved kinematic models seem sufficiently accurate for developing con...