Results 21 to 30 of about 28,058 (211)

A Comprehensive Survey on Fault Tolerance in Multiphase AC Drives, Part 1: General Overview Considering Multiple Fault Types

open access: yesMachines, 2022
Multiphase drives offer enhanced fault-tolerant capabilities compared with conventional three-phase ones. Their phase redundancy makes them able to continue running in the event of faults (e.g., open/short-circuits) in certain phases.
Alejandro G. Yepes   +4 more
doaj   +1 more source

Modeling of cross-coupling magnetic saturation in signal-injection-based sensorless control of permanent-magnet brushless AC motors [PDF]

open access: yes, 2007
An improved brushless AC motor model is proposed for use in signal-injection-based sensorless control schemes by accounting for cross-coupling magnetic saturation between the - and -axes.
Bingham, Chris, Howe, D, Li, Y, Zhu, Z Q
core   +1 more source

Realization of a sensorless speed controller for permanent magnet synchronous motor drives based on field programmable gate array technology

open access: yesAdvances in Mechanical Engineering, 2017
This article presents a hybrid sensorless speed controller for permanent magnet synchronous motor drives using field programmable gate array technology.
Risfendra   +3 more
doaj   +1 more source

Accurate Inverter Error Compensation and Related Self-Commissioning Scheme in Sensorless Induction Motor Drives [PDF]

open access: yes, 2009
This paper presents a technique for accurately identifying and compensating the inverter nonlinear voltage errors that deteriorate the performance of sensorless field-oriented controlled drives at low speed.
Bojoi, R.   +3 more
core   +1 more source

Sensorless Adaptive Optics

open access: yes, 2020
This tutorial describes the principles and practical implementation of sensorless adaptive optics.
Hampson, Karen Mary   +3 more
openaire   +1 more source

Super-Twisting Algorithm Applied to Velocity Control of DC Motor without Mechanical Sensors Dependence

open access: yesEnergies, 2020
A DC motor velocity control in feedback systems usually requires a velocity sensor, which increases the controller cost. Additionally, the velocity sensor used in industrial applications presents several disadvantages such as maintenance requirements and
Fredy A. Valenzuela   +4 more
doaj   +1 more source

Sensorless control of deep-sea ROVs PMSMs excited by matrix converters [PDF]

open access: yes, 2005
The paper reports the development of model-based sensorless control methodologies for driving PMSMs using matrix converters. In particular, experimental results show that observer-based state-estimation techniques normally employed for sensorless control
Bhangu, B S   +3 more
core   +1 more source

Sensorless position control of permanent magnet motors with pulsating current injection and compensation of motor end-effects [PDF]

open access: yes, 2011
The sensorless position control of permanent-magnet motors is successfully implemented by superimposing a high-frequency voltage signal on the voltage reference or adding a high-frequency current signal to the current reference.
Cupertino, F.   +3 more
core   +1 more source

Self-Adaptive High-Frequency Injection Based Sensorless Control for Interior Permanent Magnet Synchronous Motor Drives

open access: yesEnergies, 2019
An auto-tuning and self-adaptation procedure for High Frequency Injection (HFI) based position and speed estimation algorithms in Interior Permanent Magnet Synchronous Motor (IPMSM) drives is proposed in this paper.
Piyush Kumar   +4 more
doaj   +1 more source

Online Identification of Intrinsic Load Current Dependent Position Estimation Error for Sensorless PMSM Drives

open access: yesIEEE Access, 2020
Low-speed sensorless control of Permanent Magnet Synchronous Machine (PMSM) faces an intrinsic problem of increased position estimation error with increased load.
Hechao Wang   +3 more
doaj   +1 more source

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