Results 61 to 70 of about 1,871 (249)

Generalized High-Frequency Injection Framework for Sensorless Control of Synchronous Reluctance Machines

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
The high-frequency injection (HFI) method is commonly used for sensorless control of synchronous reluctance motors (SynRMs) at low speeds. Injecting a high-frequency (HF) signal in a predefined direction, referred to as the $d$-axis, and further ...
Dmytro Prystupa   +8 more
doaj   +1 more source

From Ship to Shore: A Review of Vessel‐To‐Grid Bidirectional Charging for Sustainable Maritime Transport

open access: yesEcoEnergy, EarlyView.
As maritime transport electrifies, bidirectional charging (V2G) offers a dual‐purpose solution for energy resilience and economic viability. This work identifies key technological advancements and lifecycle challenges utilizing practical case studies to demonstrate how V2G systems can drive decarbonization and grid stability in the marine sector ...
Jonathan Bloor   +3 more
wiley   +1 more source

Position-sensorless control of permanent-magnet-assisted synchronous reluctance motor

open access: yes, 2003
The sensorless control of permanent-magnet-assisted synchronous reluctance (PMASR) motors is investigated, in order to conjugate the advantages of the sensorless control with full exploitation of the allowed operating area, for a given inverter.
Pastorelli, Michele Angelo   +4 more
core   +1 more source

The role of cardiac acoustic biomarkers in monitoring patients with heart failure: A systematic literature review

open access: yesESC Heart Failure, Volume 12, Issue 2, Page 980-997, April 2025.
Abstract Heart failure (HF) creates a considerable clinical, humanistic and economic burden on patients and caregivers as well as on healthcare systems. To attenuate the significant burden of HF, there is a need for enhanced management of patients with HF.
Javed Butler   +8 more
wiley   +1 more source

Sensored and sensorless speed control methods for brushless doubly fed reluctance motors

open access: yes, 2009
The study considers aspects of scalar V/f control, vector control and direct torque (and flux) control (DTC) of the brushless doubly fed reluctance machine (BDFRM) as a promising cost-effective alternative to the existing technological solutions for ...
Jovanovic, Milutin
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.
G Pellegrino   +13 more
core   +1 more source

Performance Comparison of Traction Synchronous Motors with Ferrite Magnets for a Subway Train: Reluctance versus Homopolar Variants

open access: yesApplied Sciences, 2023
Due to the high cost and the predicted shortage of rare earth elements in the near future, the task of developing energy-efficient electric machines without rare earth magnets is of great importance.
Vladimir Dmitrievskii   +2 more
doaj   +1 more source

A Humanistic Social Justice Critique of AI in Counseling

open access: yesThe Journal of Humanistic Counseling, EarlyView.
ABSTRACT Humanistic counselors prioritize social justice, human contact, the therapeutic relationship, and unconditional positive regard for the client that supports the client and the client's identity community. In contrast, counseling using artificial intelligence (AI) is driven by internet information pertaining to the inquiry or command ...
Colette T. Dollarhide, Amber Baughman
wiley   +1 more source

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

open access: yes, 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   +7 more
core   +1 more source

Magnetically Nonlinear Dynamic Models of Synchronous Machines and Experimental Methods for Determining Their Parameters

open access: yesEnergies, 2019
This paper deals with rotary and linear synchronous reluctance machines and synchronous permanent magnet machines. It proposes a general method appropriate for determining the two-axis dynamic models of these machines, where the effects of slotting ...
Gorazd Štumberger   +2 more
doaj   +1 more source

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