Results 111 to 120 of about 28,429 (228)

An Optimized Sensorless Charge Balance Controller Based on a Damped Current Model for Flyback Converter Operating in DCM

Energies, 2018
This paper presents an Optimized Sensorless Charge Balance (OSCB) controller based on a damped current model for flyback converter operating in Discontinuous Conduction Mode (DCM). By solving total differential equations of non-ideal transformer currents,
Xiaofeng Zhang, Run Min, Donglai Zhang, Yi Wang   +3 more
doaj   +1 more source

Mathematical Modelling and Performance Assessment of Neural Network-Based Adaptive Law of Model Reference Adaptive System Estimator at Zero and Very Low Speeds in the Regenerating Mode

Mathematics
Precise speed estimation of sensorless induction motor (SIM) drives remains a significant challenge, particularly at zero and very low speeds. This paper proposes a mathematically modeled and enhanced stator current-based Model Reference Adaptive System (
Mohamed S. Zaky, Kotb B. Tawfiq, Mohamed K. Metwaly   +2 more
doaj   +1 more source

PWM-Based Speed and Position Estimations for Permanent Magnet Synchronous Machines

Applied Sciences
A PWM-based rotor position and speed estimator is presented in this study. The method is based on the measurement of the current response to conventional space vector pulse width-modulated voltage (SV-PWM) for PMSM drive applications.
Saleh B. Shlimet, Antonio Griffo
doaj   +1 more source

Investigation of Motor Supply Signature Analysis to Detect Motor Resistance Imbalances [PDF]

, 2015
The trend to use inverter drives in industry is well established. It is desirable to monitor the condition of the motor/drive combination with the minimum of system intervention and at the same time retaining compatibility with the latest generation of ...
Ashari, Djoni, Ball, Andrew, Gu, Fengshou, Lane, M.   +3 more
core  

Sensorless SPMSM Control for Heavy Handling Machines Electrification: An Innovative Proposal

Energies
The electrification of road vehicles is a relatively mature sector, while other areas of mobility, such as construction machinery, are just beginning their transition to electric solutions.
Marco Bassani, Andrea Toscani, Carlo Concari   +2 more
doaj   +1 more source

On Modelling and State Estimation of DC Motors

Actuators
Direct current motors are widely used in a plethora of applications, ranging from industrial to modern electric (and intelligent) vehicle applications.
Erik Arévalo, Ramón Herrera Hernández, Dimitrios Katselis, Carlos Reusser, Rodrigo Carvajal   +4 more
doaj   +1 more source

A quantitative comparison between BLDC, PMSM, brushed DC and stepping motor technologies [PDF]

, 2016
Brushless DC machines (BLDC), Permanent Magnet Synchronous Machines (PMSM), Stepping Motors and Brushed DC machines (BDC) usage is ubiquitous in the power range below 1,5kW. There is a lot of common knowledge on these technologies.
De Viaene, Jasper, Derammelaere, Stijn, Haemers, Michiel, Stockman, Kurt, Verbelen, Florian   +4 more
core   +2 more sources

A novel algorithm for sensorless motion control, parameter identication and position estimation [PDF]

, 2009
This article demonstrates that an actuator can be used as a single platform for measurement, control and estimation by designing a chain of estimators and performing simple off-line experiments.
Kahalil, Islam, Kunt, Emrah Deniz, Sabanovic, Asif, Şabanoviç, Asif   +3 more
core  

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