Results 51 to 60 of about 3,939 (291)
Radial force control of multi-sector permanent magnet machines for vibration suppression [PDF]
, 2018 Radial force control in electrical machines has been widely investigated for a variety of bearingless machines, as well as for the conventional structures featuring mechanical bearings.
Formentini, Andrea +4 more
core +2 more sources
Torque Ripple Suppression Control for PM Motor Considering the Bandwidth of Torque Meter
IEEJ Transactions on Industry Applications, 2010 PM motor drive systems are widely used for industrial drives. However, PM motors basically produce the torque ripple due to the fluctuation of the magnetic field distribution. Dead time of the inverter, offset of sensors and current measurement errors lead to the torque ripple, too. The torque ripple leads vibration noises. In this paper, we proposed a
Kento Nakamura +2 more
openaire +2 more sources
IET Power ElectronicsAiming at the torque ripple caused by significant current ripple and non‐ideal back‐electromotive force (back‐EMF) of coreless brushless DC motor (BLDCM), an incremental predictive control strategy based on unipolar pulse width modulation (PWM) is ...
Chong Zeng +3 more
doaj +1 more source
IEEE Open Journal of Industry ApplicationsSwitched reluctance motors (SRMs) are an attractive magnet-free alternative to permanent magnet synchronous motors for applications, such as electric vehicles, but their adoption is hindered by significant torque ripple, which causes both poor ...
Shou Qiu +4 more
doaj +1 more source
Realising robust low speed sensorless PMSM control using current derivatives obtained from standard current sensors [PDF]
, 2017 This paper describes the implementation of a simple, robust and cost-effective sensorless control technique for PMSM machines. The method uses stator current derivative measurements made in response to certain PWM vectors.
Gerada, Chris +3 more
core +1 more source
Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio
Advanced Engineering Materials, EarlyView.This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov +4 more
wiley +1 more source
IET Power ElectronicsTorque ripple is an important factor affecting the smoothness of permanent magnet synchronous motor. However, for high saturation permanent magnet synchronous motor (HSPMSM), the flux linkage of permanent magnet is nonlinear, which leads to poor effect ...
Wenjuan Zhang +4 more
doaj +1 more source
CES Transactions on Electrical Machines and Systems, 2020 To store energy from the grid into spiral torsion spring (STS) smoothly and efficiently via PMSM, a multi-objective control problem of flexible load's vibration, PMSM's torque ripple, and electrical loss is raised, where the current studies on vibration ...
Yang Yu +6 more
doaj +1 more source
Smooth Speed Control of Permanent Magnet Synchronous Machine Using Back Propagation Neural Network
World Electric Vehicle Journal, 2023 Torque ripple is one of the most critical problems in PMSM system. In this paper, a neural network (NN) torque compensator is combined with a conventional extended state observer (ESO)-based active disturbance rejection controller (ADRC) system to ...
Chenhao Zhao +4 more
doaj +1 more source
Study and comparison of discontinuous modulation for modular multilevel converters in motor drive applications [PDF]
, 2018 Discontinuous modulation applied to modular multilevel converters is an effective method for reducing the capacitor voltage ripples. In this paper, the discontinuous modulation is adapted and used in a motor drive application. For proper operation of the
Capellá Frau, Gabriel José +5 more
core +2 more sources