Results 251 to 260 of about 4,165,103 (293)

Ground Fault Detection Method for Variable Speed Drives

IEEE transactions on industry applications, 2021
The use of variable speed drives made essential the presence of power electronic in electrical systems. The ac to dc and dc to ac conversions, thanks to rectifiers and inverters cause difficulties in the ground fault detection.
J. M. Guerrero, G. Navarro, K. Mahtani, C. Platero   +3 more
semanticscholar   +1 more source

A Coordinated Strategy of Low-Speed and Start-Up Operation for Medium-Voltage Variable-Speed Drives With a Modular Multilevel Converter

IEEE transactions on power electronics, 2020
The low-frequency fluctuation over the capacitor voltages seriously limits the development of medium-voltage variable-speed drives with a modular multilevel converter (MMC).
Fang-Zhou Zhao, Guo-Chun Xiao, Tian-Hua Zhu, Xu Zheng, Zhiqian Wu, Tong Zhao   +5 more
semanticscholar   +1 more source

Fast Frequency Response From Smart Induction Motor Variable Speed Drives

IEEE Transactions on Power Systems, 2020
Using their fast power reduction capabilities, the induction motor variable speed drives can successfully participate in the power system primary frequency control.
Mostafa Malekpour, R. Azizipanah‐Abarghooee, Fei Teng, G. Strbac, V. Terzija   +4 more
semanticscholar   +1 more source

Common Mode Voltage Elimination in Variable Speed Drives for Improved Electrical Safety

IEEE transactions on industry applications, 2020
Common-mode-voltage (CMV) is a well-known source of bearing currents and electromagnetic interference (EMI) in industrial applications. In industrial environments with impedance-earthed IT earthing system, such as underground mining, CMV is additionally ...
G. Mirzaeva, D. Carter, S. M. Muslem Uddin, P. Stepien   +3 more
semanticscholar   +1 more source

Capacitance Reduction of the Hybrid Modular Multilevel Converter by Decreasing Average Capacitor Voltage in Variable-Speed Drives

IEEE transactions on power electronics, 2019
Modular multilevel converters (MMCs) represent an emerging topology in medium-voltage (MV) and high-voltage applications. But for MV variable-speed motor drives, the MMC faces the challenge of large capacitor voltage ripple at low speeds. Delightfully, a
Shaoze Zhou, Bin-Bin Li, Ming-Xu Guan, Xin-Yi Zhang, Zi-Gao Xu, Dianguo Xu   +5 more
semanticscholar   +1 more source

Achieving energy efficiency with medium voltage variable speed drives for ventilation-on-demand in South African mines

Journal of Cleaner Production, 2019
The sustainability of the mining industry is contingent on the industry's ability to improve upon the status quo of operational efficiency. The advancement of energy efficient technologies coupled with modern strategies have resulted in large industrial ...
A. Nel, D. Arndt, J. Vosloo, M. Mathews
semanticscholar   +1 more source

Power Capability of Hybrid Excited Synchronous Motors in Variable Speed Drives Applications

IEEE transactions on magnetics, 2019
Power capability of synchronous machines, when operating in motoring mode, is discussed in this contribution. Maximum power limits and partial loads operations are both examined in the case of variable speed drives applications when the synchronous ...
Y. Amara, S. Hlioui, H. Ben Ahmed, M. Gabsi   +3 more
semanticscholar   +1 more source

Discrete Sliding-Mode-Based MRAS for Speed-Sensorless Induction Motor Drives in the High-Speed Range

IEEE transactions on power electronics, 2023
By combining the high robustness of sliding-mode observer (SMO) with the adaptability of model reference adaptive system (MRAS), the sliding-mode-based MRAS can improve the speed estimation performance of speed-sensorless induction motor (IM) drives ...
Tianqing Wang, Bo Wang, Yong Yu, Dianguo Xu   +3 more
semanticscholar   +1 more source

Improved Deadbeat Predictive Current Control of Dual Three-Phase Variable-Flux PMSM Drives With Composite Disturbance Observer

IEEE transactions on power electronics, 2022
The dual three-phase variable-flux permanent-magnet synchronous motors (VF-PMSM) have received more attention in the variable-speed drive applications since they have advantages of high-efficiency in flux-tuning ability, low current stresses in phase ...
Kailiang Yu, Zheng Wang
semanticscholar   +1 more source

Power conversion optimization for hydraulic systems controlled by variable speed drives

Journal of Process Control, 2017
Pumps are widely used in various domestic and industrial applications, such as in water and waste water, food and beverage, and oil and gas applications.
François Malrait, A. Jebai, K. Ejjabraoui   +2 more
semanticscholar   +1 more source