Results 51 to 60 of about 2,832 (169)

Model Reference Adaptive System with Finite-Set for Encoderless Control of PMSGs in Micro-Grid Systems

Energies, 2020
In micro-grid systems, wind turbines are essential power generation sources. The direct-driven surface-mounted permanent-magnet synchronous generators (SMPMSGs) in variable-speed wind generation systems (VS-WGSs) are promising due to their high ...
Mohamed Abdelrahem, Christoph M. Hackl, José Rodríguez, Ralph Kennel   +3 more
doaj   +1 more source

Full-order adaptive observer for interior permanent-magnet synchronous motor based on novel fast super-twisting algorithm

Measurement + Control, 2023
To improve the accuracy of speed estimation strategy over a wide speed range in the sensorless speed control system of an interior permanent – magnet synchronous motor (IPMSM), a full-order adaptive observer based on a novel fast super-twisting algorithm
Weidong Feng, Jing Bai, Jing Zhang
doaj   +1 more source

Speed Identification of Speed Sensorless Linear Induction Motor Based on MRAS

CES Transactions on Electrical Machines and Systems, 2023
In the linear induction motor control system, the optical grating speed transducer is susceptible to strong magnetic field interference. What's more, it may reduce motor integration and raise device costs.
Xuan Tu, Xinguo Hou, Jinghong Zhao, Sinian Yan, Yiyong Xiong   +4 more
doaj   +1 more source

Speed estimators using stator resistance adaptation for sensorless induction motor drive [PDF]

, 2016
The paper describes speed estimators for a speed sensorless induction motor drive with the direct torque and flux control. However, the accuracy of the direct torque control depends on the correct information of the stator resistance, because its value ...
Brandštetter, Pavel, Dong, Chau Si Thien, Tran, Thinh Cong, Vo, Hau Huu   +3 more
core   +2 more sources

Pre‐Imaging Clinical Factors Associated With Cardiac MR Image Quality Using Large Language Model‐Enabled Data Extraction

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background Poor cardiac MR image quality can prompt repeat examinations and hinder clinical decision‐making. Purpose To evaluate whether pre‐imaging clinical information, extracted using a large language model (LLM), is independently associated with cardiac MR image quality. Study Type Retrospective.
Hong Yu, Masha Bondarenko, Ali Nowroozi, Yoo Jin Lee, Adrian Serapio, Punita Kaveti, Jae Ho Sohn   +6 more
wiley   +1 more source

Free‐Breathing 3D Whole Heart and Aorta Cine MRI Without Contrast Agent—Comparison to Clinical Standard

Journal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background The demand for cardiac MRI is increasing with the growing burden of cardiovascular disease. However, conventional protocols require sequential acquisitions for multi‐breath‐hold 2D cine and 3D MR angiography (MRA), which is time‐consuming.
Ruixin Chen, Huangling Lu, Alexandru Cernicanu, Jos Westenberg, Merlijn Sevenster, Jochen Keupp, Jakob Meineke, Hildo J. Lamb   +7 more
wiley   +1 more source

Circadian Immunity and Vascular Inflammation in Cardiovascular Disease Chronotherapy Windows: Time for a Re‐Assessment

Med Research, EarlyView.
ABSTRACT Circadian rhythms orchestrate cardiovascular physiology by regulating immune and inflammatory pathways. Disruption of these rhythms profoundly alters vascular homeostasis, thereby promoting the onset and progression of cardiovascular diseases (CVD).
Tian Zhang, Ge Zhang, Tian‐Ding Liu, Tianshu Gu, Fengyi Yu, Pengyuan Xu, Wunan Mi, Xuanjiang Zhao, Qian Guo, Honglin Zheng, Taiqi Zhao, Qiang Li, Di Lu, Mingxuan Duan, Chaoyang Yu, Ruhao Wu, Shiqian Zhang, Haonan Zhang, Zeyu Wang, Youyang Zheng, Yan Xiao, Zenglei Zhang, Ge Zhang   +22 more
wiley   +1 more source

Parameter estimation for VSI-Fed PMSM based on a dynamic PSO with learning strategies [PDF]

, 2016
© 1986-2012 IEEE.A dynamic particle swarm optimization with learning strategy (DPSO-LS) is proposed for key parameter estimation for permanent magnet synchronous machines (PMSMs), where the voltage-source inverter (VSI) nonlinearities are taken into ...
Liu, K., Liu, Z.H., Wei, H.L., Wu, L.H., Xiao, X.S., Zhong, Q.C.   +5 more
core   +2 more sources

New Frontiers in EU Trade Policy: Moving Beyond Conventional Trade Agreements

Global Policy, EarlyView.
ABSTRACT As the rules‐based international trading system faces stagnation and increasing unilateralism, the European Union's trade policy must evolve beyond conventional free trade agreements (FTAs). This article examines recent trends in EU trade agreements, highlighting not only their expanded scope to include areas such as digital trade ...
Niall Moran
wiley   +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