Anti-control of chaos of a permanent magnet DC motor system for vibratory compactors

Robust Linear Control of (Chaotic) Permanent-Magnet Synchronous Motors With Uncertainties

“…Simplified -models are often used for instance, neglecting viscous friction-cf., [14], [10] or by considering the stator inductances to be equal, that is the case of the smooth-air-gap PM machines-cf. [15], [6], [13], [3], [5], [9]. Our main results cover but are not limited to these cases.…”

“…In this paper, we revisit the problems of set-point (constant operating point) and tracking (time-varying operating regime) control of open-loop chaotic permanent-magnet synchronous machines (PMSM). This problem has attracted a number of researchers from different areas as witnessed by the variety of publications' fora: physics cf., [3], [4], (power) electronics cf., [5]- [7], electrical engineering (circuits) cf., [8]- [12]; besides the fact that the PMSM is a popular benchmark in the control community cf., [13], [14]. One of the key problems related to the PMSM is its natural chaotic behavior, for certain choices of parameters and initial conditions, see, e.g., [15], [16], [6], [11].…”

“…Indeed, while it has been argued that chaos is undesirable for a number of relatively valid reasons, it is also argued the opposite with certain interesting applications in mind: [3] presents a controller to generate chaotic behavior in PMSMs used to construct vibratory soil compactors. Simulation results are presented in [5], where chaos is induced via delayed feedback.…”

DTC-SVPWM of an Energy Storage Flywheel Associated with a Wind Turbine Based on the DFIM

“…The Direct Torque Control (DTC) is based on the flow control and torque using hysteresis controllers [13,14]. The stator flux is estimated from the equation of stator voltage of asynchronous machine:…”

“…Being very difficult to measure the voltages at the terminals of a three-phase inverter voltage supply voltages are estimated based on the DC bus voltage and switching states of the inverter arm. So, the phase voltages of the MAS are determined as follows: [14,15]. A three-phase inverter can produce eight different combinations as follows:…”