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Yi-Xuan Huang and Kung-Ming Chung
This study determines the mean and fluctuating pressures for flow through a rectangular shallow cavity (ratio between the length and the depth = 2.43, 4.43, and 6.14; ratio between the length and the width = 0.5, 1.0, and 2.0) at a Mach number of 0.64 in...
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Xiaowei Cai, Zhihe Fu, Huangsheng Xie, Jiaxiang Xue, Duhan Ding, Ning Ou and Gang Zhou
The coaxial cylindrical reactor with a rotary nozzle is proposed to be used as the plasma torch of the plasma cleaning machine. The phase-shifted full bridge series resonance circuit is used as the power circuit topology. Because the voltage source load ...
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Eugen Vereschago,Vitalii Kostiuchenko,Sergii Novogretskyi
Pág. 23 - 31
A simulation model of a converter with soft switching of transistors has been created. New calculation methods and means of measuring the equivalent frequency characteristics of converting devices with negative feedback to the problems of stability analy...
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Kamalaselvan Arunachalam, Balasubramanian Madanmohan, Rajesh Rajamani, Natarajan Prabaharan, Hassan Haes Alhelou and Pierluigi Siano
The Frequency Response Analysis approach (FRA) is useful in the fault diagnosis of transformers. However, its usefulness in diagnosing any potential sources of Partial Discharge (PD) in transformers has not been thoroughly investigated so far. In this wo...
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Oleksandr Plakhtii,Volodymyr Nerubatskyi,Dmytro Sushko,Igor Ryshchenko,Vladyslav Tsybulnyk,Denys Hordiienko
Pág. 6 - 14
In order to minimize the reactive power and higher harmonics of currents, as well as to improve the electromagnetic compatibility of electrical traction networks and systems of railroad automation, modern electric rolling stock of alternating current emp...
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Gang Liu, Yaxun Guo, Yanli Xin, Lei You, Xiaofeng Jiang, Ming Zheng and Wenhu Tang
In order to study switching transients in an offshore wind farm (OWF) collector system, we employ modeling methods of the main components in OWFs, including vacuum circuit breakers (VCBs), submarine cables, and wind turbine transformers (WTTs). In partic...
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Roh Chan and Sangshin Kwak
Voltage source inverters operated by predictive control methods generally lead to a variable switching frequency, because predictive control methods generate switching operation based on an optimal voltage state selected at every sampling period. Varying...
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Xiongmin Tang, Junhui Zhang, Zheng Liu and Miao Zhang
This paper presents a novel switching frequency optimized space vector pulse width modulation (SVPWM) scheme for cascaded multilevel inverters. The proposed SVPWM is developed in a a'ß' coordinate system, in which the voltage vectors have only int...
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Jauhar Ismiyadinata, Harry Yuliansyah, Muhammad Reza Kahar Aziz, Arief Syaichu Rohman, Dr.
Pág. 9 - 16
This article proposes a design of 400 watt inverter with frequency of 50 Hz at voltage of 12 Vdc input and 220 Vac output. This inverter is designed to convert the Direct Current (DC) into Alternating Current (AC) voltage with the purpose to utilize DC e...
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Shun Kojima,Kazuki Maruta,Chang-Jun Ahn
Pág. 332 - 339
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Yong-Nong Chang, Shun-Yu Chan and Hung-Liang Cheng
This paper proposes a single-stage, high power-factor light-emitting diode (LED) driver with a self-excited control scheme for the power switches. The self-excited mechanism is accomplished by fetching the driving voltages from a center-tapped transforme...
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Alexandr Shavelkin,Jasim Mohmed Jasim Jasim,Iryna Shvedchykova
Pág. 14 - 22
Improvement of the current control loop of the multifunctional grid-tied inverter of the local object electrical power system is considered. The purpose is ensuring compliance with the quality standards of the grid current in the whole range of its value...
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Nagarajan Booma, Sathi Ramareddy
Pág. 173 - 183
This paper discusses about the fixed frequency pulse mask control based high frequency AC conversion circuit for industrial induction heating applications. Conventionally, for induction heating load, the output power control is achieved using the pulse w...
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Nagarajan Booma, Sathi Ramareddy (Author)
Pág. 173 - 183
This paper discusses about the fixed frequency pulse mask control based high frequency AC conversion circuit for industrial induction heating applications. Conventionally, for induction heating load, the output power control is achieved using the pulse w...
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Hsiao-Hsing Chou, Jian-Yu Chen, Tsung-Hu Tseng, Jun-Yi Yang, Xuan Yang and San-Fu Wang
In this paper, a new control scheme for buck converters was proposed. The buck converter utilizes the dual control loop to improve transient response and has the constant switching frequency. The control scheme is mainly as follows: (a) The switch-ON tim...
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Xiangsuo Fan, Xiaokang Chen, Wenhao Xu, Lingping Feng, Ling Yu and Haohao Yuan
In this paper, we propose a new filtering switch with excellent working performance made using an optimized coupled microstrip line. Upon analyzing the RF (radio frequency) front-end?s system structure, the switching device was simplified to a diode, whi...
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Abualkasim Bakeer, Mohammed Alhasheem and Saeed Peyghami
The disadvantage of finite control set-model predictive control (FCS-MPC) is that the switching frequency is variable and relies on the sampling time and operating point. This paper describes how to implement a new algorithm to achieve a fixed-switching ...
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Hugot Pichon, Yves Lembeye and Jean-Christophe Crebier
In this article, inductor loss models are developed based on the experimental characterization of off-the-shelf components. The modelling steps and techniques are described and validated. It is shown that the model exhibits fairly good accuracy over a la...
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Jiaqi Wu, Xiaodong Li, Shengzhi Zhou, Song Hu and Hao Chen
To meet the requirements of charging the mainstream rechargeable batteries, in this work, a dual-bridge resonant converter (DBRC) is operated as a battery charger. Thanks to the features of this topology, the required high efficiency can be achieved with...
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