Results 31 to 40 of about 28,429 (228)

Improved rotor position estimation in extended back-EMF based sensorless PM brushless AC drives with magnetic saliency [PDF]

open access: yes, 2007
An improved extended back-EMF based sensorless control method is proposed for a brushless AC motor equipped with an interior permanent magnet rotor. It accounts for dq-axis cross-coupling magnetic saturation by introducing an apparent mutual winding ...
Bingham, Chris, Howe, D, Li, Y, Zhu, Z Q
core   +1 more source

Sensorless Auto Commissioning of the Position Phase Shift Compensation in Permanent Magnet Machines [PDF]

open access: yesمجلة جامعة النجاح للأبحاث العلوم الطبيعية, 2016
An automated self commissioning procedures for sensorless controlled AC drives is described where no prior knowledge of the motor parameters is required.
Kamel Saleh, Mark Sumner
doaj   +1 more source

Position estimation delays in signal injection-based sensorless PMSM drives [PDF]

open access: yes, 2012
The causes of position estimation delays and their effects on the sensorless control of permanent magnet synchronous motor drives are investigated. The position of a permanent magnet synchronous machine is estimated via the injection of high frequency ...
Altomare, A.   +3 more
core   +1 more source

Machining state monitoring in end milling based on comparison of monitored and predicted cutting torques

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
To improve machining efficiency, it is necessary to know the machining status and optimize cutting conditions. Cutting force prediction is one method of determining the machining status.
Kazuki KANEKO   +3 more
doaj   +1 more source

Neural Network-Driven Sensorless Speed Control of EV Drive Using PMSM

open access: yesMathematics, 2023
To reduce pollution and energy consumption, particularly in the automotive industry, energy saving is the main concern, and hence, Electric vehicles (EVs) are getting significantly more attention than vehicles with internal combustion engines (IC engines)
Harshit Mohan   +4 more
doaj   +1 more source

FPGA-based implementation of the back-EMF symmetric-threshold-tracking sensorless commutation method for brushless DC-machines [PDF]

open access: yes, 2013
The operation of brushless DC permanent-magnet machines requires information of the rotor position to steer the semiconductor switches of the power-supply module which is commonly referred to as Brushless Commutation. Different sensorless techniques have
Darba, Araz   +3 more
core   +1 more source

Sensorless Control for the EVT-Based New Dual Power Flow Wind Energy Conversion System

open access: yesEnergies, 2017
The dual power flow wind energy conversion system (DPF-WECS) is a novel system which is based on the electrical variable transmission (EVT) machine. The proposed sensorless control for the DPF-WECS is based on the model reference adaptive system (MRAS ...
Ying Zhu, Ming Cheng, Haixiang Zang
doaj   +1 more source

Sensorless multi-loop control of phase-controlled series-parallel resonant converter [PDF]

open access: yes, 2014
This paper proposes a multi-loop controller for the phase-controlled series-parallel resonant converter. Output voltage is solely measured for control and inner loop is used to enhance closed loop stability and dynamic performance compared to single-loop
Aboushady, A.A., Ahmed, K.H.
core   +2 more sources

Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

open access: yesEnergies, 2019
Different from the traditional method of the interior permanent magnet synchronous motor (IPMSM), the sensorless maximum torque per ampere (MTPA) control scheme in this paper does not need two observers for rotor position and d-q axis inductances ...
Mengting Ye   +4 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

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