Results 41 to 50 of about 105,219 (309)

Active RCD adaptive voltage balancing control strategy for high-voltage uncontrolled rectifier valve

Journal of Physics: Conference Series, 2023
Abstract The voltage balance of the series diodes is the premise to ensure the stable and reliable operation of the high voltage uncontrolled rectifier valve. When traditional RC and RCD voltage balancing methods are applied to high voltage uncontrolled rectifier valves in far-reaching offshore wind farms, the complex and changeable ...
Wenhao Chen, Ping Yang, Guoping Peng, Zejian Liu, Jun Zeng, Ben Shi, Hongzhan Wang   +6 more
openaire   +1 more source

Investigation of DC‐bus control modes and impacts on energy yield for a modular HVDC wind drive train

IET Renewable Power Generation
This article aims to investigate different dc‐bus voltage balancing control modes for a modular HVDC drive train applied to offshore wind energy. The modular structure discussed consists of a stacked polyphase bridge converter connected to the modules of
Lorrana Faria da Rocha, Lynn Verkroost, Hendrik Vansompel, Pål Keim Olsen   +3 more
doaj   +1 more source

A Currentless Submodule Individual Voltage Balancing Control for Modular Multilevel Converters [PDF]

IEEE Transactions on Industrial Electronics, 2020
The capacitor voltage balancing is one of the most important issues for safe and reliable operation of the modular multilevel converters (MMC). This article proposes a currentless submodule individual voltage balancing control (SMIVBC) to realize capacitor voltage balancing in the MMC.
Fujin Deng, Chengkai Liu, Qingsong Wang, Rongwu Zhu, Xu Cai, Zhe Chen   +5 more
openaire   +1 more source

Derivation of Voltage Source Multilevel Converter Topologies [PDF]

, 2017
Multilevel converters have gained popularity in both medium voltage and low voltage applications. To find out the connections between various multilevel voltage-source converter topologies and to reveal how to obtain new topologies, this paper has ...
Yuan, Xibo
core   +2 more sources

Nutritional and Behavioral Intervention for Long‐Term Childhood Acute Leukemia Survivors With Metabolic Syndrome

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Metabolic syndrome (MetS) is a common complication in survivors of childhood acute lymphoblastic and myeloid leukemia (AL), and a major risk factor for premature cardiovascular disease, type‐2‐diabetes, and metabolic dysfunction‐associated steatotic liver disease (MASLD).
Visentin Sandrine, Béliard Sophie, Renard Cécile, Caussy Cyrielle, Hamidou Zeinab, Romano David, Gacem Mélanie, Petit Arnaud, Saultier Paul, Borentain Patrick, Michel Gérard   +10 more
wiley   +1 more source

Cophase Traction Power Supply System Based on Improved MMC-STATCOM-Vv Wiring

IEEE Access
A static synchronous compensator topology with an improved MMC (MMC-STATCOM) is proposed in this study after analyzing the modular converter (MMC) topology.
Yong Zhou, Minan Tang, Weili Liu
doaj   +1 more source

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François, Fadel, Maurice, Llor, Ana-Maria   +2 more
core   +1 more source

Predicting Chronicity in Children and Adolescents With Newly Diagnosed Immune Thrombocytopenia at the Timepoint of Diagnosis Using Machine Learning‐Based Approaches

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Objectives To identify predictors of chronic ITP (cITP) and to develop a model based on several machine learning (ML) methods to estimate the individual risk of chronicity at the timepoint of diagnosis. Methods We analyzed a longitudinal cohort of 944 children enrolled in the Intercontinental Cooperative immune thrombocytopenia (ITP) Study ...
Severin Kasser, Alice Bizeul, Meera Chitlur, Hugo Donato, Jelena Roganovic, Julia E. Vogt, Thomas Kühne   +6 more
wiley   +1 more source

Optimization of switching losses and capacitor voltage ripple using model predictive control of a cascaded H-bridge multi-level StatCom [PDF]

, 2013
This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom).
Betz, Robert E., Clare, Jon C., Summers, Terence J., Townsend, Christopher D., Vodden, John Alan, Watson, Alan James   +5 more
core   +2 more sources

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source