نتایج جستجو برای: pulsed power switch

تعداد نتایج: 572849  

2007
Hoshiyuki Yamazaki Weihua Jiang

The Magnetron is one of the efficiency high-power microwave source, although the energy conversion efficiency decreases with pulsed-power relativistic electron beam. We study the capability to increase energy conversion efficiency of Relativistic Magnetron by using Transparent Cathode. The Transparent-Cathode consists of independent cathode strips. Each cathode strip caused azimuthal magnetic f...

2007
Shesha H. Jayaram

Pulsed power application has emerged to become an important technology in today’s industry beyond defense sectors, although historically the applications included particle acceleration, imploding plasmas and related. Pulsed power refers to the technology where a steady accumulation of energy followed by its rapid release, results in the delivery of a large amount of instantaneous power over a v...

2008
M. Georges C. Thizy P. Lemaire G. Roosen G. Pedrini H. Schubach

We present the achievement of the european PHIFE project (Pulsed Holographic Interferometer for the analysis of Fast Events) concerning the development of holographic head principles connected to a YAG Q-switch double pulsed laser. Based on the results of a first laboratory development phase, a final prototype has been designed and built that incorporates both the laser and a modular holographi...

State estimation is used in power systems to estimate grid variables based on meter measurements. Unfortunately, power grids are vulnerable to cyber-attacks. Reducing cyber-attacks against state estimation is necessary to ensure power system safe and reliable operation. False data injection (FDI) is a type of cyber-attack that tampers with measurements. This paper proposes network reconfigurati...

Journal: :The Transactions of The Korean Institute of Electrical Engineers 2013

2017
Jie Chen Weiyu Lu Guoping Huang Jianfeng Zhu Jinchun Wang

To control the flow separation in the compressors, a novel pulsed jet concept without external energy injection is proposed. The new concept designs a slot in the middle of the blade and sets a micro device to switch the slot periodically. Such a structure is expected to generate a pulsed jet by the pressure difference between the pressure side and the suction side of the blade. In order to ana...

Journal: :IEEE Transactions on Power Delivery 1991

2013
David Otto Brunner Markus Weiger Thomas Schmid Klaas Paul Pruessmann

Introduction: High-power transmit-receive (T/R) switches are a core component of pulsed NMR and MRI spectrometers. The usually employed PIN diodes offer low losses and high power handling capabilities, but are inherently slow semiconductors and let switches usually transit within 5-20 μs from transmission to reception. For liquid state NMR methods, this dead-time is mostly not a big caveat, how...

Journal: :Acta IMEKO 2021

<span lang="EN-GB">DC grids can effectively feed pulsed power loads (PPLs), integrating local energy storage to minimize the impact on other connected and implementing buffered sub-grids isolate susceptible even more. The identification of regulatory limits for PPL integration DC grid response assessment necessitate suitable Power Quality (PQ) metrics. Existing indexes (e.g. ripple distor...

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