Results 21 to 30 of about 137,530 (263)

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

open access: yesIEEE 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   +5 more
doaj   +1 more source

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

open access: yesWorld 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

open access: yesIEEE 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   +3 more
doaj   +1 more source

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

open access: yesIEEE 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   +4 more
doaj   +1 more source

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

open access: yesE3S 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   +5 more
doaj   +1 more source

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo   +5 more
wiley   +1 more source

Suppressing the Capacitor Voltage Fluctuations in Low Frequency Operation of Modular Multilevel Converters

open access: yesIEEE Access, 2020
Low frequency operation in the modular multilevel converters (MMCs) is enabled by applying a reference common mode voltage and circulating currents at a frequency much higher than the desired output frequency.
Muneer Al Sabbagh   +3 more
doaj   +1 more source

Low-frequency operation control method for medium-voltage high-capacity FC-MMC type frequency converter

open access: yesSystems Science & Control Engineering, 2023
The application of modular multilevel converters (MMCs) to large drive systems is subject to severe low-frequency operation restrictions. The fluctuation of capacitor voltage and the high amplitude of common mode voltage in sub-modules is a thorny ...
Weiman Yang   +4 more
doaj   +1 more source

Health Literacy, Self‐Efficacy and Knowledge of Sickle Cell Disease Among Caregivers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a hereditary blood disorder in which abnormal haemoglobin leads to severe anaemia, painful crises and organ failure. Caregivers’ health literacy (HL) – their ability to assess, understand and apply information, and interact with healthcare professionals – is crucial for managing children with SCD, yet ...
Melanie Bruinooge   +6 more
wiley   +1 more source

Common Mode Voltage Reduction of Single-Phase Quasi-Z-Source Inverter-Based Photovoltaic System

open access: yesIEEE Access, 2019
A common mode voltage (CMV) reduction method is proposed for the active power filter (APF) integrated single-phase quasi-Z-source inverter (qZSI) based photovoltaic (PV) power system. The APF integrated qZSI completely compensates the dc-side double-line-
Yushan Liu   +3 more
doaj   +1 more source

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