Results 131 to 140 of about 1,816 (187)
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Sensorless control for synchronous motors
2010 International Conference on Autonomous and Intelligent Systems, AIS 2010, 2010Permanent magnet synchronous motors are used in many industrial applications because they have several inherent advantages. However, information about the rotor position is necessary even to be able to control drive speed. Conventional speed and position detection uses encoder and resolver.
Libor Vesely, Pavel Zbranek
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SMA sensorless actuators for micrometric control
2009 European Control Conference (ECC), 2009The ability of SMAs to respond reversibly to an external stimulus by modifying their dimensions can be used to generate motion or force in electromechanical devices and micro-machines. There are several works that demonstrate SMAs are serious alternatives as micrometric actuators, obtaining accuracies around 3 µm in position control if high-quality ...
Estibaliz Asua +3 more
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Research of sensorless controller of BLDC motor
IEEE 10th International Conference on Industrial Informatics, 2012Sensorless control technology has been a hotspot in the area of BLDCM control. In this paper, a speed controller of BLDCM based on MC56F8013 was researched using BEMF-crossing-zero-detecting method, including hardware circuit and software design. Experiments were implemented and it shows that the BEMF method for detecting rotor position signal is ...
Yuanlou Gao, Yongliang Liu
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Sensorless speed control of induction motors
Proceedings of the 2004 American Control Conference, 2004We consider field-oriented speed control of induction motors without rotor position sensors. We augment the traditional approach with flux and speed observers and derive a sixth-order nonlinear model that describes the motor in field-oriented coordinates. The model takes into consideration the error in flux estimation.
Hassan K. Khalil, Elias G. Strangas
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On sensorless control of a class of electrical machines
Proceedings of the 41st IEEE Conference on Decision and Control, 2002., 2004The problem of sensorless (local) speed regulation of a class of electrical machines is addressed and solved using a simple linear-time varying controller. The class, which contains permanent magnet synchronous and stepper motors, consists of all fully actuated machines whose magneto motive force can be approximated by a first harmonic Fourier ...
Alessandro Astolfi +2 more
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A sensorless passivity-based control for PMSM
2018 International Conference on Electronics, Communications and Computers (CONIELECOMP), 2018This paper presents a sensorless controller design to speed tracking problem for a Permanent Magnet Synchronous Motor (PMSM). The technique of passivity requires knowing the load torque, this is estimated with a reduced-order extended state observer, a traditional reduced-order observer and an online algebraic estimator.
Jacob Javier Vasquez Sanjuan +3 more
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Sensorless control of the suspension preload in motorcycles
2008 IEEE International Symposium on Industrial Electronics, 2008This paper describes the sensorless control of a motorcycle suspension preload. The aim of the system is to make the suspension work around its optimal operating point, making the vehicle height independent of the load carried. This improves the safety and comfort of the vehicle.
BARONTI, FEDERICO +3 more
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Sensorless predictive control for an induction machine
2016 IEEE International Conference on Information and Automation (ICIA), 2016Predictive current control is described for an Induction Machine in this paper. Instead of the cascaded PI control systems, the proposed system directly generates switching vectors by evaluating the designed cost function, which reduces the tuning parameters. An observer is applied for the sensorless system, whcih has the merit of low cost.
Fengxiang Wang 0001 +2 more
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A nonlinear tracking control for sensorless induction motors
Automatica, 2004zbMATH Open Web Interface contents unavailable due to conflicting licenses.
MARINO, RICCARDO +2 more
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Estimation, identification, and sensorless control in motion control system
Proceedings of the IEEE, 1994The paper presents the state of the art of motion systems particularly emphasizing both estimation and identification of parameters and control variables of an electric-motor-driven motion system. In a modern electrical drive system, it is required to take not only the electrical aspect but also the mechanical phase into total system consideration ...
Kouhei Ohnishi +2 more
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