Results 41 to 50 of about 2,431 (308)

Predictive Current Control of Sensorless Linear Permanent Magnet Synchronous Motor

Energies, 2023
In the vector control system of a tubular oscillating permanent magnet synchronous linear motor, it is difficult to obtain accurate feedback information from the conventional mechanical sensors under bad and complex working conditions.
He Wang, Tao Wu, Youguang Guo, Gang Lei, Xinmei Wang   +4 more
doaj   +1 more source

Extending The Lossy Spring-Loaded Inverted Pendulum Model with a Slider-Crank Mechanism [PDF]

, 2015
Spring Loaded Inverted Pendulum (SLIP) model has a long history in describing running behavior in animals and humans as well as has been used as a design basis for robots capable of dynamic locomotion.
Morgul, Omer, Odabas, Caner, Orhon, H. Eftun, Saranli, Uluc, Uyanik, Ismail   +4 more
core   +2 more sources

Improved Model-Free Deadbeat Predictive Current Controller for PMSMs Based on Ultralocal Model and H∞ Norm

Energies
This article proposes an improved model-free deadbeat predictive current control (MFCC) method for permanent magnet synchronous motors (PMSMs) based on the ultralocal model and H∞ norm.
Yiming Fang, Junlei Chen
doaj   +1 more source

Comparison between FS-MPC control strategy for an UPS inverter application in α-β and abc frames [PDF]

, 2010
The voltage source inverter (VSI) of an uninterruptible power supply (UPS) is a system where the main objective is to obtain a high quality output sinusoidal voltage with independence on the output load.
Carrasco, J. M., Cortés, P., Dominguez, E., García Franquelo, Leopoldo, León Galván, José Ignacio, Rodriguez, José, Vázquez Pérez, Sergio   +6 more
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

Current-Controller-Free Self-Commissioning Scheme for Deadbeat Predictive Control in Parametric Uncertain SPMSM

IEEE Access, 2021
Deadbeat predictive control (DBPC) requires accurate model parameters in its application, therefore it is difficult to use DBPC for surface mounted permanent magnet synchronous motor (SPMSM) with uncertain motor parameters.
Jiang Long, Ming Yang, Yangyang Chen, Kaiyuan Liu, Dianguo Xu   +4 more
doaj   +1 more source

An Enhanced Deadbeat Predictive Current Control of SPMSM With Linear Disturbance Observer

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022
Deadbeat predictive current control (DPCC) with a linear disturbance observer (LDO) in the surface-mounted permanent magnet synchronous machine (SPMSM) has been widely applied in many applications due to better dynamic response performance and easy implementation. However, the evaluated lumped disturbances caused by current measurement noises, inverter
Xin Yuan, Shuangchun Xie, Jiahao Chen, Shuo Zhang, Chengning Zhang, Christopher H. T. Lee   +5 more
openaire   +2 more sources

A simple method to reduce torque ripple in direct torque-controlled permanent-magnet synchronous motor by using vectors with variable amplitude and angle [PDF]

, 2011
In this paper, a modified direct torque control (DTC) for permanent-magnet synchronous machines, which enables important torque- and flux-ripple reduction by using voltage vectors with variable amplitude and angle, is proposed.
Guo, Y, Xu, W, Zhang, Y, Zhu, J
core   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source

Renewable energy system for an isolated sustainable social centre [PDF]

, 2016
This paper describes the development of the power converters and control algorithms to implement an isolated microgrid based in renewable energy sources used to feed a Sustainable Social Centre in a remote place.
Afonso, João L., Exposto, Bruno Fernandes, Fernandes, Fábio, Monteiro, Vitor, Pinto, J. G.   +4 more
core   +1 more source