Results 41 to 50 of about 3,939 (291)

The use of cement leftovers from the hollow of spun piles as an additive in self-compacting concrete [PDF]

, 2018
Spun piles have been used widely by developing countries, including Malaysia, to construct the foundation of most construction projects. A spun pile is a reinforced precast and prestressed concrete that is compacted in a mould through spinning compaction.
Adnan, Suraya Hani, Adnan, Suzana Wati, Jamellodin, Zalipah, Osman, Mohamad Hairi, Zakaria, Muhammad Shukri   +4 more
core   +1 more source

Unified Fault-tolerant Control Strategy with Torque Ripple Compensation for Five-phase Permanent Magnet Synchronous Motor Based on Normal Decoupling

Energies, 2019
In this paper, the decoupling matrix in a five-phase permanent magnet synchronous motor (FPMSM) is rebuilt and changed, according to different open-phase conditions, which complicate the switch and control algorithm.
Guodong Sun, Guijie Yang, Yanyi Wang, Jianyong Su   +3 more
doaj   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas, Abolhassani, Andrese, Apsley, Atkinson, Bakhshai, Benatmane, Bendixen, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Casadei, Coates, Correa, Correa, Corzine, de Silva, Dente, Duran, E. Levi, Edelson, F. Profumo, Farina, Ferraris, Ferreira, Figureoa, Gataric, Gerada, Golubev, Golubev, Golubev, Gopakumar, Gopakumar, Gritter, H.A. Toliyat, Hadiouche, Hadiouche, Hodge, Hou, Iqbal, Iqbal, Iqbal, Iqbal, Iqbal, Jacobina, Jacobina, Jacobina, Jacobina, Jahns, Jones, Jones, Jones, Jones, Jouanne, Kelly, Kestelyn, Kestelyn, Kestelyn, Kianinezhad, Klingshirn, Levi, Levi, Levi, Levi, Lipo, Locment, Lu, Lyra, Mantero, Mantero, McCoy, Mecrow, Merabtene, Miller, Miranda, Mitcham, Mohapatra, Mohapatra, Mokhtari, Monti, Nelson, Ojo, Oriti, Oudjebour, Parsa, Pereira, Pereira, R. Bojoi, Razik, Ryu, Ryu, S. Williamson, Semail, Semail, Shi, Siala, Silva, Singh, Smith, Smith, Steiner, Sudhoff, Takami, Terrien, Toliyat, Toliyat, Toliyat, Toliyat, Toliyat, Ward, Weh, Williamson, Xu, Xu, Zhao, Zhao, Zheng   +121 more
core   +1 more source

Optimal Modeled Six-Phase Space Vector Pulse Width Modulation Method for Stator Voltage Harmonic Suppression [PDF]

, 2018
Dual Y shift 30 six-phase motors are expected to be extensively applied in high-power yet energy-effective fields, and a harmonic-suppressing control strategy plays a vital role in extending their prominent features of low losses and ultra-quiet ...
Luo, Qiwu, Sun, Yichuang, Yang, Lijun, Zheng, Jian   +3 more
core   +2 more sources

Robot Impedance Control and Passivity Analysis with Inner Torque and Velocity Feedback Loops [PDF]

, 2016
Impedance control is a well-established technique to control interaction forces in robotics. However, real implementations of impedance control with an inner loop may suffer from several limitations.
Boaventura, Thiago, Buchli, Jonas, Caldwell, Darwin G., Focchi, Michele, Frigerio, Marco, Medrano-Cerda, Gustavo A., Semini, Claudio   +6 more
core   +1 more source

Brushless DC Motor Current Prediction Torque Ripple Suppression

Journal of Harbin University of Science and Technology, 2020
Aiming at the torque ripple problem of brushless DC motor, a current predictive control method combined with commutation overlap method is proposed to suppress the commutation torque ripple Based on the analysis of the cause of the commutation torque ...
LDegang, ZHANG Chenguang, HOU Zhengdong
doaj   +1 more source

Optimal design of a novel three-phase high-speed flux reversal machine [PDF]

, 2019
A single-phase flux reversal machine (FRM) has many advantages in high-speed applications because of its simple and reliable rotor structure without magnets or winding, simple and cheap concentrated stator windings, high efficiency, and power density ...
Dmitrievskii, Vladimir, Ibrahim, Mohamed Nabil Fathy, Kazakbaev, Vadim, Oshurbekov, Safarbek, Prakht, Vladimir   +4 more
core   +2 more sources

Methods for Reducing Cogging Force in Permanent Magnet Machines: A Review

Energies, 2022
Permanent magnet (PM) machines inevitably suffer from cogging force, which does not contribute to the average output torque (force) but contributes as a type of torque (force) ripple. This paper provides an overview of the cogging force reduction methods
Wenjuan Hao, Gong Zhang, Wenbo Liu, Hui Liu, Yu Wang   +4 more
doaj   +1 more source

A new method of accurate broken rotor bar diagnosis based on modulation signal bispectrum analysis of motor current signals [PDF]

, 2014
Motor current signature analysis (MCSA) has been an effective way of monitoring electrical machines for many years. However, inadequate accuracy in diagnosing incipient broken rotor bars (BRB) has motivated many studies into improving this method.
Alwodai, Ahmed, Ball, Andrew, Gu, Fengshou, Shao, Yimin, Tian, Xiange, Wang, T.   +5 more
core   +1 more source

Research on Novel Hybrid Torque Sharing Function for Switched Reluctance Motors

IEEE Access, 2022
Torque Sharing Function (TSF) approach can be considered a promising method to solve the torque ripple issue in switched reluctance motors (SRMs) drives at low and medium speed ranges. However, at the high-speed operation of the machine, the actual phase
Fahad Al-Amyal, Laszlo Szamel
doaj   +1 more source