Results 171 to 180 of about 1,622,335 (215)

Sensorless control of high speed BLDC

2017 IEEE International Symposium on Sensorless Control for Electrical Drives (SLED), 2017
The paper deals with brushless DC motors (BLDC) operated in high speed region without any speed or position sensor. A six-step commutation technique is used to control the BLDC motor, utilizing the disconnected motor phase for sensing the induced voltage.
Marek Stulrajter, Pavol Makyssn, Pavol Rafajdus   +2 more
openaire   +1 more source

Speed sensorless observer for an induction machine

Proceedings of the 1997 American Control Conference (Cat. No.97CH36041), 1997
A nonlinear filter, referred to as the state dependent Riccati equation filter, is applied to the model of an induction machine. The filter is used to estimate the velocity and the rotor flux components of induction machine.
V. Pappano, B. Friedland
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Robust speed sensorless control of PMSM

2008 IEEE International Symposium on Industrial Electronics, 2008
This paper presents a speed sensorless non-salient permanent magnet synchronous motor (PMSM) sliding mode control algorithm. The key idea is to integrate the benefits of the variable structure system control design and the event-driven sequential control structures to raise the system performance and control efficiency.
Karel Jezernik, Aljaz Kapun, Milan Curkovic   +2 more
openaire   +1 more source

Sensorless speed control of DC machine

2013 International Conference on Power, Energy and Control (ICPEC), 2013
In this paper a Kalman filter based state feedback controller of a DC machine is designed and implemented in a hardware. A Kalman filter is used to estimate the speed and armature current from noisy measurement of armature current. A state feedback control is designed and simulated in Matlab. The controller designed is implemented in dSPACE.
B. Das, A. Chakrabarti, P. R. Kasari, N. Sharma   +3 more
openaire   +1 more source

A comparative study of sensorless speed control

International Journal of Applied Electromagnetics and Mechanics, 2012
In this paper, a sensorless control scheme using back-EMF observer for permanent magnet synchronous motor drive (PMSM) is presented. Based on a general relationship between back-EMF and rotor position, observed rotor position is calculated and corrected with position estimation error. To obtain the velocity information from the observed rotor position,
Lu, An, Hameyer, Kay
openaire   +1 more source

Vss Speed Sensorless Control of PMSM

IFAC Proceedings Volumes, 2008
The speed sensorless control of nonsalient PMSM that uses estimated rotor flux instead of the transformation angle is designed. This paper introduces a new sequential switching control strategy for a current control of a three phase inverter. The key idea is to integrate the benefits of the variable structure system control design and the event-driven ...
openaire   +1 more source

Robust Speed and Parameters of Induction Motor Speed Sensorless Drive

2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition, 2009
This paper presents the robust speed and parameters control of induction motors (IM) without speed sensors. The reactive power Model Reference Adaptive System was used to estimate the speed. The method is independent from stator resistance and pure integrator in reference model. Furthermore, parameters, used in the speed approximation, are not affected
S. Banharn, Y. Udomsak, M. Veerapol
openaire   +1 more source

Sensorless speed control of PMSM

2013
In this chapter, the authors are interested in the sensorless control for nonsalient permanent-magnet synchronous motors (PMSM). The models of the PMSM and the problem formulation are given in the first section of the chapter. The controller structure and the main result are presented in the second section.
Shah, Dhruv, Espinosa-Pérez, Gerardo, Ortega, Roméo, Hilairet, Michaël   +3 more
openaire   +2 more sources

Sensorless speed measurement of induction motors

IEEE International Symposium on Intelligent Signal Processing, 2003, 2004
The paper deals with the accurate slip measurement of induction motors. The proposed procedure uses a noninvasive slip measurement scheme based on digital filtering and dynamic parameter estimation. The slip measurement is carried out without speed sensor and is deduced analyzing the magnetic field harmonics spectrum in proximity of the induction motor.
openaire   +1 more source

Speed sensorless field orientation control of the induction machine

Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting, 1993
A speed estimation method for an induction machine and its application to a flux observer-based field orientation (FOFO) control system proposed previously is presented. The motor speed is estimated on the basis of the difference between two flux estimators. The convergence of the method is analyzed, and a novel pole assignment method is proposed.
H. Tajima, Y. Hori
openaire   +1 more source