Results 41 to 50 of about 490 (132)

Harmonic Analysis on Torque Ripple of Brushless DC Motor Based on Advanced Commutation Control

Journal of Control Science and Engineering, 2018
This paper investigates the relationship between current, back electromotive force (back-EMF), and torque for permanent-magnet brushless DC (PM BLDC) motors under advanced commutation control from the perspective of harmonics.
Yanpeng Ji, Bin Li, Jingcheng Sun
doaj   +1 more source

A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems

Energy Science &Engineering, EarlyView.
This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly, Eslam Essam, Hilmy Awad, Samia Abdelfatah, Walid Issa, Abdallah M. Hamada   +5 more
wiley   +1 more source

A Hybrid Excited Machine with Flux Barriers and Magnetic Bridges

Energies, 2018
In this paper, an U-shape flux barrier rotor concept for a hybrid excited synchronous machine with flux magnetic bridges fixed on the rotor is presented.
Marcin Wardach, Piotr Paplicki, Ryszard Palka   +2 more
doaj   +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

Optimization Design of Permanent Magnet Synchronous Motor Based on Multi-Objective Artificial Hummingbird Algorithm

Actuators
The interior permanent magnet synchronous motor (IPMSM) is known for its high output torque, strong overload capacity, and high power density, making it a popular choice in the electric vehicle industry.
Shaoru Zhang, Hui Yan, Likun Yang, Hua Zhao, Xiuju Du, Jielu Zhang   +5 more
doaj   +1 more source

A HTS-Excitation Modular Flux-Switching Linear Machine With Static Seals

IEEE Access, 2019
This paper proposes and analyzes a novel high-temperature superconducting (HTS) modular flux-switching linear machine for long-stator applications, which adopts the stator with a low-cost salient-pole iron core and accommodates both the armature windings
Wenzhong Ma, Xiaoyang Wang, Yubin Wang, Xianglin Li   +3 more
doaj   +1 more source

Sensorless Driving/Braking Control for Electric Vehicles

Actuators, 2020
A sensorless driving/braking control system for electric vehicles is explained in the present paper. In the proposed system, a field-oriented control (FOC) was used to integrate driving and braking controls in a unified module for reducing the cost of ...
En-Ping Chen, Jiangfeng Cheng, Jia-Hung Tu, Chun-Liang Lin   +3 more
doaj   +1 more source

AI‐enabled bumpless transfer control strategy for legged robot with hybrid energy storage system

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Designing Hybrid energy storage system (HESS) for a legged robot is significant to improve the motion performance and energy efficiency of the robot. However, switching between the driving mode and regenerative braking mode in the HESS may generate a torque bump, which has brought significant challenges to the stability of the robot locomotion.
Zhiwu Huang, Zi Yu, Hui Peng, Zixuan Wang, Xiaokang Dai, Weirong Liu, Jing Wang   +6 more
wiley   +1 more source

Electromagnetic Performance Analysis on the Bearingless Permanent Magnet Synchronous Motor With Halbach Magnetized Rotor

IEEE Access, 2019
In order to approximately obtain sinusoidal air-gap magnetic field and get larger radial levitation force of the bearingless permanent magnet synchronous motor (BPMSM), a novel BPMSM with Halbach magnetized rotor is proposed.
Tao Zhang, Xiaoting Ye, Lihong Mo, Qing Lu   +3 more
doaj   +1 more source

Back‐electromotive force analysis of permanent magnet micromotor using applicational 3D analytical model

IET Science, Measurement & Technology, 2018
Permanent magnet (PM) axial flux machines are well adopted in microelectromechanical systems application, which needs a short axial length. PM micromotors have special characteristics such as transition zone which made their analysis different from macro ones.
Mostafa Jafari Kermani Pour, Seyed Abbas Taher, Mohammad Shahidehpour   +2 more
openaire   +1 more source