Results 121 to 130 of about 14,243 (235)

An improved sensorless FS-PTC of induction motors using estimated stator currents

, 2015
© 2015 IEEE. Conventionally a finite state predictive torque control (FS-PTC) strategy uses measured stator currents and estimated stator and rotor flux to predict stator flux and torque of induction motor (IM).
Md. Habibullah, Lu, DDC, Dylan Dah-Chuan Lu, Habibullah, M   +3 more
core   +1 more source

On the possibilities of using a brushless doubly-fed reluctance generator in a 2 MW wind turbine

, 2008
The paper will put a forward a description of a realistic design for a brushless doubly-fed machine that is of practical value. It takes the form a 4-pole / 8-pole machine aimed for use in a 2 MW wind turbine over a correct speed and torque range ...
Jovanovic, Milutin, Dorrell, D., Jovanovic, M., Dorrell, D.G., Milutin Jovanovic, Jovanovic, M, David G. Dorrell, Dorrell, DG   +7 more
core   +1 more source

ZERO-SPEED ROTOR POSITION RECONSTRUCTION TECHNIQUES ANALYSIS FOR HYBRID EXCITATION PM MOTORS [PDF]

openIn condizioni di funzionamento a bassa velocità, le tecniche di stima sensorless offrono un'ottima alternativa ai metodi convenzionali sensored. Questa tesi presenta un'analisi comparativa focalizzata sulla valutazione dell'efficacia dei metodi di ...
DALLA ZUANNA, EDOARDO
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Sensorless quasi-standstill and very low-speed position detection in non-salient PMSMs based on current injection and back-EMF observer

, 2012
Accuracy and robustness of sensorless speed control of non-salient PMSMs in the low-speed region and at start-up is a critical issue, due to the low amplitude of the back-EMF which prevents estimation and then closed-loop control in the zero speed range.
Calligaro, S, Roberto Petrella, Bolognani, S, BOLOGNANI, SILVERIO, PETRELLA, Roberto, Silverio Bolognani, Sandro Calligaro   +6 more
core   +1 more source

Extended Kalman Filter for Sensorless Control of Induction Motors

, 2010
This paper deals with speed and rotor flux estimation of induction motors via Extended Kalman Filter (EKF). The filter is designed starting from a discrete time model obtained by means of a first order discretization of the original nonlinear model of ...
ALONGE, Francesco, D'IPPOLITO, Filippo
core   +1 more source

An Investigation into the Saliency Ratio of Fractional-Slot Concentrated-Winding Generators for Offshore Wind Power

Energies
This paper investigates the nature of the low saliency ratio of large permanent magnet generators with fractional-slot concentrated windings (FSCWs). A saliency ratio of at least 1.2 is typically required to enable sensorless control of large generators ...
Isaac Rudden, Guang-Jin Li, Zi-Qiang Zhu, Alexander Duke, Richard Clark   +4 more
doaj   +1 more source

A Lie Theory-Based Control Scheme for a Solar-Fed Encoderless SPMSM

IEEE Open Journal of Power Electronics
This article proposes a novel Lie group controller for speed sensorless control of a surface-mounted Permanent Magnet Synchronous Motor (SPMSM) fed by a solar microinverter.
Abirami Kalathy, Arpan Laha, Praveen Jain, Majid Pahlevani   +3 more
doaj   +1 more source

Analysis of phase-detection algorithms for back-EMF-based sensorless strategies through real-time simulations

, 2011
The work developed in this paper presents a comparison between three different phase detection algorithms in order to study the benefits of using each of them when they are applied inside a sensorless rotor position estimation technique. In particular we
Tursini M., Di Leonardo L., Olivieri C.
core   +1 more source

Investigating the Effect of Water Contamination on Gearbox Lubrication based upon Motor Control Data from a Sensorless Drive

Water is one of the most significant destructive contaminations to lubricants which in turn lead to more power consumption and early damage to rotating machines.
Gu, Fengshou, Brethee, Khaldoon F., Ball, Andrew, Benghozzi, Ahmed, Abusaad, Samieh   +4 more
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Sensorless control and temperature estimation of a PM motor for e-bike

reservedLo scopo di questa tesi è quello di presentare un algoritmo sensorless e un algoritmo per il derating della coppia nella regione di sovraccarico. Nel primo capitolo vengono introdotte delle nozioni teoriche e il Field Oriented Control (FOC). Nel
SARTORI, PIERFRANCESCO
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