A Numerical Synthesis Method for Hybrid-Type High-Power Gyrotron Launchers

2017 ◽  
Vol 65 (3) ◽  
pp. 699-706 ◽  
Author(s):  
Jianbo Jin ◽  
Manfred Thumm ◽  
Gerd Gantenbein ◽  
John Jelonnek
Keyword(s):  
High Power ◽  
Synthesis Method ◽  
Hybrid Type ◽  
Numerical Synthesis

scholarly journals A synthesizer for gigawatt class high power microwaves

2013 ◽  
Vol 31 (4) ◽  
pp. 567-578 ◽  
Author(s):  
Jinyong Fang ◽  
Huijun Huang ◽  
Jing Sun ◽  
Zhiqiang Zhang ◽  
Tiezhu Liang ◽  
...  
Keyword(s):  
High Power ◽  
Wave Length ◽  
Synthesis Method ◽  
Coupling Efficiency ◽  
Main Channel ◽  
Wave Guide ◽  
Orthogonal Polarization ◽  
Wave Guides ◽  
Operating Bandwidth ◽  
Power Capability

AbstractThe high power microwave (HPM) synthesis method is presented in this paper for gigawatt level. The gigawatt level HPM could be synthesized from two separate input wave-guides according to the coupled-wave and orthogonal polarization theory. The synthesizer is used by two back to back circular wave-guides. The main channel is the circular wave-guide connected to the output port, which transmits horizontal polarization TE011 mode. The operating bandwidth is only limited by the barrier wave-length λc of circular wave-guide. The sub-channel transmits vertical polarization TE011 mode and the operating bandwidth is up to several hundred MHz. The energy of sub-channel could be coupled into main channel through continuous long-slit coupling structure. The synthesizer can be analyzed using numerical simulation method, which focuses on the power capability. The simulation results indicate that the transmission efficiency of the main channel is above 99%, the coupling efficiency of the sub-channel is above 96%, which also validates the reasonability of synthesizer design. At the same time, the prototype of synthesizer is designed and the HPM experiment system is established. The transmitting and coupling efficiency are both greater than 95% in cold test condition and they are also greater than 90% in gigawatt class test condition, the power capability of the synthesizer reaches about 1.2GW. The test results validate the feasibility of synthesizer for gigawatt class HPM.

Improvement of Hybrid-Type High-Power Gyrotron Launcher

2019 ◽  
Author(s):  
Wenqi Li ◽  
Zhiqiang Zhang ◽  
Iirun Luo ◽  
Yong Li ◽  
Yu Fan
Keyword(s):  
High Power ◽  
Hybrid Type

Research on High-Power Power Factor Corrector of Power Electronic Transformer

2011 ◽  
Vol 354-355 ◽  
pp. 1342-1346
Author(s):  
Jian Feng Jiang ◽  
Xi Jun Yang ◽  
Jian Guo Jiang ◽  
Huai Gang Lei
Keyword(s):  
Power Factor ◽  
High Power ◽  
Simulation Analysis ◽  
Power Level ◽  
Synthesis Method ◽  
Power Electronic ◽  
Suppression Effect ◽  
Electronic Transformer ◽  
Power Electronic Transformer ◽  
High Power Level

Power electronic transformer (PET) which has a big potential application value in smart grid is an electrical power transformer device adopting power electronic converter and high frequency switch transformer. A new PET with power factor correctors (PFC) is proposed in this paper. Due to high power level of PET, PFC should have a high power level as well. Therefore, the multi-phase interleaved PFC is employed. The paper describes the one cycle control principle, proposes a current synthesis method based on IGBT current, and then analyses the relationship between ripple current and duty cycle of IGBT. In addition, the whole PFC system is simulated completely by means of Matlab/Simulink. In order to verify the theoretical analysis and simulation analysis, a four-phase interleaved PFC with a rated output power of 8.0kW is designed and implemented based on the an analog control chip. The obtained results show that the interleaved PFC by means of one cycle control and current synthesis is feasible, capable of reaching a good suppression effect of ripple current.

Dynamic Modeling and Wear-Based Remaining Useful Life Prediction of High Power Clutch Systems

2005 ◽  
Vol 48 (2) ◽  
pp. 208-217 ◽  
Author(s):  
Matthew Watson ◽  
Carl Byington ◽  
Douglas Edwards ◽  
Sanket Amin
Keyword(s):  
Dynamic Modeling ◽  
High Power ◽  
Life Prediction ◽  
Remaining Useful Life ◽  
Useful Life
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