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Introduced more than ten years ago, the multicell converters make it possible to distribute the voltage constraints among series-connected switches and to improve the output wave-forms. This structure is used generally for high power application, that's why, some safety measures must be taken before the experimental tests. For these reasons, we can use HIL simulation. This paper presents some solutions...
This paper addresses the chaos synchronization of two identical drive-response Liu chaotic systems and its application in secure communication. Based on the vector norm approach, a control law is developed and applied to synchronize both systems' states. The obtained synchronization scheme is implemented using analog circuits and applied for chaos masking communication. Simulation results are presented...
A short circuit between the stator winding turns is one of the most common faults affecting electrical motors. It can rapidly evolve to more serious faults causing significant degradation of the performance of the machine. This paper investigates inter-turns short circuit fault diagnosis in brushless direct-current (BLDC) motors. A fault diagnosis approach based on a super twisting sliding mode observer...
Hardware-in-the-loop (HIL) is known as an efficient simulation approach allowing the test of control systems before implementation, where some of the control-loop components are implemented in real hardware device and some are simulated. Typical, ordinary Input/Output ports are used as an interface between the plant simulation and the embedded system under test. However, this kind of communication...
This paper deals with bifurcation analyses in current programmed DC/DC Boost converter and exhibition of chaotic behavior. This phenomenon occurs due to variation of a set of the studied circuit parameters (input voltage and a reference current). Two different kinds of bifurcation paths have been observed as part of another bifurcation, arising from variation of suitable chosen parameter.
In this paper, an adaptive backstepping control method is developed for a single-link robotic manipulator coupled to a brushed direct current DC motor with a nonrigid joint. The developed method uses the Lyapunov approach. It guarantees the uniform ultimate boundedness of the closed-loop system signals and the tracking error converges to zero asymptotically for any initial conditions. Simulation results...
This paper proposes an adaptive backstepping control method for a class of uncertain single input single output nonlinear systems. The proposed method is based on the robust stability property of the Lyapunov method. This method can ensures the uniform ultimate boundedness of the closed-loop system signals and the tracking error converges to zero for any initial conditions. Simulation results also...
This paper presents a position sensorless control of a stepping motor based on a proportional derivative control. The proposed control allows the elimination of the studied actuator position oscillations. The motor speed and position are determined from the motor position back EMF voltages which are estimated by a nonlinear Lipschitz observer by detecting the statoric voltages and currents. The proposed...
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