Results 61 to 70 of about 2,732 (182)
Sliding Mode Control of Vienna Rectifier Under Unbalanced Weak Power Grid
Three-phase, three-level Vienna rectifiers are widely used in power supplies for the advantages of high power density, low switching voltage stress and low grid side current harmonics.
Yanbing Tian +4 more
doaj +1 more source
Research on high efficiency VIENNA rectifier based on novel particle swarm optimization
The traditional L filter has the disadvantages of poor filtering effect, and the LCL filter is designed to further reduce the harmonic loss of the high frequency switching frequency.
Xu Wenqian, Shao Ruping, Yuan Donglin
doaj +1 more source
Climate Justice in Courtrooms: A Normative Inquiry into Reasoning in Climate Litigation
ABSTRACT Climate litigation cases have grown rapidly in number and influence. While framed legally, climate litigation appeals to the idea of climate justice, understood as involving a set of independent moral standards to be met in the face of climate change.
Laura García‐Portela +1 more
wiley +1 more source
World Beliefs Moderate the Effects of Trauma and Severe Illness on Emotional Distress
ABSTRACT Objective Severe illness and trauma can cause significant psychological distress, but individuals differ in their responses. This research tested whether world beliefs—fundamental assumptions about the nature of the world—moderate the relationship between negative life experiences and emotional distress.
Nicholas Kerry +7 more
wiley +1 more source
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
Predictive power control strategy without grid voltage sensors of the Vienna rectifier
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
Single-stage modified Vienna rectifier SEPIC AC-DC LED driver
This paper presents an innovative approach by combining a modified first-stage Vienna rectifier with a single-stage SEPIC converter. The proposed Vienna rectifier structure significantly reduced the switch stress. This allows the use of switches with low
Kenan Gürçam, M. Nuri Almalı
doaj +1 more source
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
Unidirectional multilevel back-to-back (BTB) converters are widely employed in renewable energy generation systems and in motor drives for coal mining operations. However, the current zero-crossing distortion (CZCD) on the grid side and the neutral-point
Haigang Wang, Zongwei Liu, Muqin Tian
doaj +1 more source
Performance optimization of VIENNA rectifier based on SVM under unbalanced grid
On the basis of the steady state analysis of the VIENNA rectifier, an improved direct synchronous decoupling method is used to model the current inner loop, and a small amount of power compensation is added to expand the working area to adapt to ...
Wang Da, Shao Ruping, Dong Feiju
doaj +1 more source

