Results 31 to 40 of about 7,595,541 (291)

Elimination of Common Mode Voltage in the Three-To-Nine-Phase Matrix Converter

Energies, 2020
A multiphase matrix converter (MC) is a direct AC/AC converter with n-phase input and m-phase output that is required to supply multiphase systems. To synthesize the controllable sinusoidal output voltage and input current with controllable displacement ...
Janina Rząsa, Elżbieta Sztajmec
doaj   +1 more source

Leakage current and common mode voltage issues in modern AC drive systems [PDF]

, 2007
Due to rapid developments of IGBT technology, switching time and frequency are dramatically increased. At higher carrier frequencies, IGBTs induce more capacitive coupled current into a rotor and a stator frame and lead to faster bearing damage.
Ghosh, A., Adabi Firouzjaee, Jafar, F. Zare, G. Ledwich, Adabi, J., Zare, F., Ghosh, Arindam, Zare, Firuz, Ledwich, Gerard F., J. Adabi, Ledwich, G., A. Ghosh   +11 more
core   +1 more source

A 3D Reduced Common Mode Voltage PWM Algorithm for a Five-Phase Six-Leg Inverter

Machines, 2023
Neutral point voltage control converters (NPVCC) are being considered for AC drive applications, where their additional degree of freedom can be used for different purposes, such as fault tolerance or common mode voltage (CMV) reduction.
Markel Fernandez, Endika Robles, Iker Aretxabaleta, Iñigo Kortabarria, Jon Andreu, José Luis Martín   +5 more
doaj   +1 more source

A Multi-Functional De-Icing Equipment Using Modular Parallel PWM Current Source Converters [PDF]

E3S Web of Conferences, 2021
For transmission line de-icing, a five level specific harmonic elimination (5l-she) modulation method for high-power parallel current source is proposed, which realizes the current balance of DC bridge arm and the suppression of common mode voltage, and ...
Hu Yang, Zhang Heng, Chen Jing, Zhang Huan, Liu Xinmeng, Li Jiachen, Chen Hanyu, Hu Haiyang   +7 more
doaj   +1 more source

A Switched-Capacitor-Voltage-Doubler Based Boost Inverter for Common-Mode Voltage Reduction

IEEE Access, 2019
In this paper, a modified three-phase two-level voltage source inverter is proposed. By combining the conventional three-phase H-bridge inverter with a switched-capacitor-voltage-doubler network, the DC-link voltage of the proposed inverter is double ...
Tan-Tai Tran, Minh-Khai Nguyen, Truong-Duy Duong, Joon-Ho Choi, Young-Cheol Lim, Firuz Zare   +5 more
doaj   +1 more source

Optimization of TSPWM for Common-Mode Voltage Reduction in Vehicular Electric Drive System

World Electric Vehicle Journal, 2021
Common-mode voltage can be reduced effectively by optimized modulation methods without increasing additional costs. However, the existing methods cannot satisfy the requirements of the vehicular electric-drive application.
Shang Jiang, Yuan Wang
doaj   +1 more source

Mitigating Common Mode Current in Chain Energy Storage Inverters With Novel Approach

IEEE Open Journal of Power Electronics
The chain energy storage converter, a type of multilevel converter, exhibits characteristics such as multi-modularization, easy scalability, and low harmonic voltage output, rendering it suitable for medium to high voltage and large capacity energy ...
Qinglei Zhang, Waseem Ahmad, Kamran Javed, Ali Raza   +3 more
doaj   +1 more source

A Review of Modeling and Mitigation Techniques for Bearing Currents in Electrical Machines With Variable-Frequency Drives

IEEE Access, 2022
The converter switching in variable-frequency drives can generate high frequency common mode voltage between the machine winding and the converter ground, leading to high frequency parasitic currents which can flow through the machine bearings unless ...
Wenjun Zhu, Daniele De Gaetano, Xiao Chen, Geraint Wyn Jewell, Yihua Hu   +4 more
doaj   +1 more source

A New Dynamic Voltage Restorer with Multi-level Open-end Winding Topology [PDF]

E3S Web of Conferences, 2020
In this paper, a variety of main circuit structures of DVR based on open-end winding are presented. Two inverters are connected in series to realize the multi-level structure and simplify the hardware cost. According to the mathematical model of open-end
Yin Jingyuan, Li Jinke, Huo Qunhai, Wu Lixin, Han Libo, Zhang Tongshuo   +5 more
doaj   +1 more source

Neuropsychological and Educational Outcomes in Shwachman–Diamond Syndrome—A Report From the North American Shwachman–Diamond Syndrome Registry

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Shwachman–Diamond syndrome (SDS) is a rare autosomal recessive ribosomopathy characterized by bone marrow failure and multisystem involvement, with emerging evidence of associated neurocognitive impairment. Methods We conducted a retrospective study of 240 individuals with biallelic Shwachman–Bodian–Diamond syndrome (SBDS) mutations
Jane Koo, Melissa Gerstle, Leah Cheng, Richard Cooper, Katherine Coyne, Claire Dusa, Naomi E. Joffe, Diana Schwarz, Sarah Steltz, Akiko Shimamura, Kasiani C. Myers, Thea Quinton   +11 more
wiley   +1 more source