Results 31 to 40 of about 2,273 (186)

Application of Sensorless Control Technology of Permanent Magnet Synchronous Motor in Tianjin Metro

机车电传动, 2020
The necessity of sensorless control technology of permanent magnet traction system in the field of rail transit was introduced, the position estimation method based on the electromagnetic relation of permanent magnet motor was summarized, and the ...
Xingxiang ZHOU
doaj  

Permanent-Magnet Synchronous Motor Sensorless Control Using Proportional-Integral Linear Observer with Virtual Variables: A Comparative Study with a Sliding Mode Observer

Energies, 2019
Quick convergence, simple implementation, and accurate estimation are essential features of realizing permanent-magnet synchronous motor (PMSM) position estimation for sensorless control using microcontrollers. A linear observer is often designed on real
Baochao Wang, Yangrui Wang, Liguo Feng, Shanlin Jiang, Qian Wang, Jianhui Hu   +5 more
doaj   +1 more source

Contact Force Estimation in Human–Robot Collaboration: A Case Study on Heavyweight Robotic Manipulators

Advanced Intelligent Systems, EarlyView.
The method presented in this paper provides a practical sensorless solution for estimating both contact force and contact location using only standard joint encoders and an available robot dynamic model. By reformulating the contact estimation problem using a single scalar equivalent contact parameter, the approach enables fast and robust computation ...
Thanh‐Quan Ta, Shyh‐Leh Chen
wiley   +1 more source

Enhanced Sensorless Control of Switched Reluctance Motors Using Inertial Phase-locked Loop for Extended Speed Range

CES Transactions on Electrical Machines and Systems
Sensorless control of switched reluctance motors (SRMs) often requires a hybrid mode combining low-speed pulse injection methods and high-speed model-based estimation. However, pulse injection causes unwanted audible noises and torque ripples.
Zifeng Chen, Xijian Lin, Huayu Ji, Zehua Li, Hang Zhao, Dianxun Xiao   +5 more
doaj   +1 more source

Extended Back-EMF Based Industrial Sensorless Drive System for PMSMs

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
Field oriented control (FOC) of Permanent Magnet Synchronous Motors (PMSM) is utilized in many industrial applications due to its high performance. Semiconductor manufacturers provide specialized solutions and tools for this technique.
Burak Gördük, Murat Yilmaz
doaj   +1 more source

Hybrid Inverters With Dual Switching Frequencies for Switched Reluctance Motors

Energy Science &Engineering, EarlyView.
A hybrid dual‐switching‐frequency inverter for SRMs is proposed, combining SiC and IGBT devices based on rotor inductance. The method enables accurate current tracking with simple hysteresis control, significantly reducing torque ripple, vibration, and acoustic noise while cutting inverter cost compared to full‐SiC solutions.
Fares S. El‐Faouri, Majd G. Batarseh, Hamzeh J. Jaber, Ayman Faza, Wejdan Abu Elhaija   +4 more
wiley   +1 more source

An Integrated Numerical and Bollard Pull Evaluation Approach for Early‐Stage Resistance and Thrust Assessment of a Small Craft

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Early‐stage hydrodynamic assessment of slender multihull vessels is challenged by limited geometric maturity, uncertain propulsion integration, and strong sensitivity to operating conditions. Under such constraints, reliance on a single analytical or numerical method may lead to misleading design decisions due to oversimplification or ...
Chairat Napasaksri, Napat Intaraksa, Chalermkiat Nuchturee, Ramil Kesvarakul, Sarawuth Srinakaew   +4 more
wiley   +1 more source

Cost-Effective Predictive Flux Control for a Sensorless Doubly Fed Induction Generator

IEEE Access, 2019
The paper introduces a cost effective predictive flux control (PFC) approach for a sensorless doubly fed induction generator (DFIG). The base operation of the proposed PFC depends on controlling the rotor flux (α-β) components using a cost ...
Mahmoud A. Mossa, Ameena Saad Al-Sumaiti, Ton Duc Do, Ahmed A. Zaki Diab   +3 more
doaj   +1 more source

Robust Sensorless Model-Predictive Torque Flux Control for High-Performance Induction Motor Drives

Mathematics, 2021
This paper introduces a novel sensorless model-predictive torque-flux control (MPTFC) for two-level inverter-fed induction motor (IM) drives to overcome the high torque ripples issue, which is evidently presented in model-predictive torque control (MPTC).
Ahmed G. Mahmoud A. Aziz, Hegazy Rez, Ahmed A. Zaki Diab   +2 more
doaj   +1 more source

Research Progress on Thermal Runaway and Thermal Management of Lithium‐Ion Batteries

Safety Science and Technology, EarlyView.
This review summarizes thermal runaway mechanisms, propagation pathways, mitigation strategies, and intelligent thermal management technologies for lithium‐ion batteries, highlighting the transition from passive heat dissipation to integrated safety regulation through advanced cooling, barrier materials, sensing, machine learning, and digital‐twin ...
Songrong Li, Wenjia Zhao, Yutong Zhang, Xianyong Wu, Zhongxue Chen   +4 more
wiley   +1 more source