Results 91 to 100 of about 153,808 (271)

Control and simulation design of a cascaded single-phase VIENNA switching converter based on small signal modeling

矿业科学学报, 2020
In order to avoid using the heavy and expensive line frequency transformer in the traditional high-voltage mining AC driver, and considering that the mining fan does not need energy feedback, a three-phase rectifier consisting of three star connected ...
Wang Cong, Hu Haoyu, Cheng Hong
doaj   +1 more source

ZVS/ZCS Vienna rectifier topology for high power applications

IET Power Electronics, 2019
This paper focuses on the study of a soft‐switched unidirectional boost‐type rectifier employing a snubber circuit, used as a front‐end converter stage in high‐power applications. The proposed rectifier operates with soft switching which results in high efficiency and low cost.
Abdar Ali, Muhammad Mansoor Khan, Jiang Yuning, Yaqoob Ali, Muhammad Talib Faiz, Jiang Chuanwen   +5 more
openaire   +1 more source

Representativeness of the Natura 2000 network for preserving plant biodiversity in the European Union

Conservation Biology, Volume 40, Issue 2, April 2026.
Abstract The Natura 2000 (N2K) network of protected areas is one of the main tools for area‐based conservation in the European Union (EU), yet its role in preserving plant biodiversity requires better understanding. We examined data kept in the European Vegetation Archive from over 1.2 million vegetation plots and obtained over 14.2 million plant ...
Michele Di Musciano, Piero Zannini, Riccardo Testolin, Francesco Maria Sabatini, Diletta Santovito, Borja Jiménez‐Alfaro, Florian Jansen, Milan Chytrý, Lorenzo Ricci, Emiliano Agrillo, Fabio Attorre, Idoia Biurrun, Gianmaria Bonari, Hans Henrik Bruun, Luigi Cao Pinna, Andraž Čarni, Maria Laura Carranza, Roberto Cazzolla Gatti, Jürgen Dengler, Michele De Sanctis, Úna Fitzpatrick, Anna Rita Frattaroli, Emmanuel Garbolino, Stephan Hennekens, Ute Jandt, Jan Jansen, Zygmunt Kacki, Ilona Knollová, Jonathan Lenoir, Jesper Erenskjold Moeslund, Tomáš Peterka, Nataša Pipenbaher, Duccio Rocchini, Eszter Ruprecht, Solvita Rūsiņa, Urban Šilc, Sonja Škornik, Grzegorz Swacha, Milan Valachovič, Kiril Vassilev, Wolfgang Willner, Alessandro Chiarucci   +41 more
wiley   +1 more source

Direct current control of an active power filter for harmonic elimination, power factor correction and load unbalancing compensation [PDF]

, 2003
An active power filter is designed, simulated, implemented, and tested. It can work in different modes: active power filtering, power factor correction, and load unbalance compensation.
Adriano S. Carvalho, António P. Martins, Helder J. Azevedo, José M. Ferreira   +3 more
core  

Hamstring Mechanics During Acceleration, Deceleration and Sidestep Cutting

Scandinavian Journal of Medicine &Science in Sports, Volume 36, Issue 4, April 2026.
ABSTRACT Hamstring strain injuries (HSI) are common in field‐based sports. Musculoskeletal modeling studies have been used to investigate hamstring mechanics during steady‐state running. Accelerative and decelerative running as well as change of direction actions, which are common mechanisms of HSI, have been largely overlooked.
Nikolai Steventon‐Lorenzen, Emily Fitzwilliam, Anthony G. Schache, David Opar, Nirav Maniar   +4 more
wiley   +1 more source

Predictive power control strategy without grid voltage sensors of the Vienna rectifier

IET Power Electronics
This paper proposes a predictive power control strategy for the three‐phase, six‐switch Vienna rectifier without grid voltage sensors to reduce the hardware cost and complexity of a high‐power PWM rectifier system.
Tao Yang, Lan Chen, Yiru Miao
doaj   +1 more source

Research on VIENNA rectifier QPR control and soft start

Journal of Physics: Conference Series
Abstract The principle and operation of the VIENNA rectifier is examined and the VIENNA mathematical model is developed. To address the issue that the three-phase VIENNA rectifier’s double PI controller finds it challenging to attain both rapidity and accuracy, a double closed-loop control approach consisting of inner loop quasi ...
Guangwei Gao, Xikun Chen, Ze Sun, Haotian Xu, Chenyu Ju, Kesong Zhang   +5 more
openaire   +1 more source

Correcting Breaks in Temperature and Humidity Observations: Implications for Climate Variability Analysis in Austria

International Journal of Climatology, Volume 46, Issue 3, 15 March 2026.
A 2‐h shift in the timing of evening observations in 1971 resulted in a discontinuity in the estimation of daily means of air temperature and humidity across all climate stations in Austria. This study employs hourly observations to, for the first time, comprehensively quantify and correct this break.
Johann Hiebl, Anna Rohrböck, Klaus Haslinger   +2 more
wiley   +1 more source

A Fixed Switching Frequency Model Predictive Control Strategy With Reactive Power Handling Capability and Improved Current Tracking for Vienna Rectifiers

IEEE Open Journal of Power Electronics
Vienna rectifiers are widely used for high power density AC–DC conversion in applications such as electric vehicle chargers, power supplies, and industrial front-end rectifiers.
Abdul Nazer P, Harish Sudhakaran Nair
doaj   +1 more source

Feasability demonstration of the Vienna type excitation system for synchronous generators [PDF]

, 2018
The operation of the Vienna rectifier has been analyzed and relevant literature on the rectifier has been reviewed. Furthermore, the Vienna rectifier in scope of rotating power electronics in brushless excitation has been discussed and found to be an ...
Giset, Martin Magnus Scherz
core