Three-Phase to High-Frequency Single-Phase Matrix Converter : A Frequency Control Suitable for Soft Switching

2018 ◽  
Author(s):  
Wataru Kodaka ◽  
Satoshi Ogasawara ◽  
Koji Orikawa ◽  
Masatsugu Takemoto ◽  
Takashi Hyodo ◽  
...  
Keyword(s):  
High Frequency ◽  
Single Phase ◽  
Frequency Control ◽  
Matrix Converter ◽  
Soft Switching ◽  
Three Phase

Control of Three Phase to High Frequency Single Phase Matrix Converter Capable of High Power Factor Operation and Soft Switching

2020 ◽  
Vol 140 (12) ◽  
pp. 893-904
Author(s):  
Wataru Kodaka ◽  
Satoshi Ogasawara ◽  
Koji Orikawa ◽  
Masatsugu Takemoto ◽  
Hiroyuki Tokusaki
Keyword(s):  
Power Factor ◽  
High Power ◽  
High Frequency ◽  
Single Phase ◽  
Matrix Converter ◽  
Soft Switching ◽  
High Power Factor ◽  
Three Phase

Three-phase to Single-phase Matrix Converter for Improvement of Three-phase Voltage Unbalance in Distribution System

2015 ◽  
Vol 135 (3) ◽  
pp. 168-180 ◽  
Author(s):  
Ryota Mizutani ◽  
Hirotaka Koizumi ◽  
Kentaro Hirose ◽  
Kazunari Ishibashi
Keyword(s):  
Distribution System ◽  
Single Phase ◽  
Matrix Converter ◽  
Phase Voltage ◽  
Voltage Unbalance ◽  
Three Phase

Electromagnetic Property of La0.7Sr0.3MnO3/Ag Composite at High Frequency

2015 ◽  
Vol 655 ◽  
pp. 182-185
Author(s):  
Ke Lan Yan ◽  
Run Hua Fan ◽  
Min Chen ◽  
Kai Sun ◽  
Xu Ai Wang ◽  
...  
Keyword(s):  
High Frequency ◽  
Single Phase ◽  
Low Frequency ◽  
Electromagnetic Property ◽  
High Frequency Range ◽  
Frequency Range ◽  
Free Electron Concentration ◽  
Theoretical Simulation ◽  
Electrical And Magnetic Properties ◽  
Three Phase

The phase structure, and electrical and magnetic properties of La0.7Sr0.3MnO3(LSMO)-xAg (xis the mole ratio,x=0, 0.3, 0.5) composite were investigated. It is found that the sample withx=0 is single phase; the samples withx=0.3 and 0.5 present three phase composite structure of the manganese oxide and Ag. With the increasing of Ag content, the grain size of the samples increases and the grain boundaries transition from fully faceted to partially faceted. The permittivity of spectrum (10 MHz - 1 GHz) and the theoretical simulation reveal that the plasma frequencyfpincrease with Ag content, due to the increasing of free electron concentration, which is further supported by the enhancement of conductivity. While for the permeability (μr'), theμr'decrease with the increasing of Ag content at low frequency range (f< 20 MHz), while at the relative high frequency range (f> 300 MHz), theμr'increased with Ag content. Therefore, the introduction of elemental Ag resulted in a higherμr'at the relative high frequency range.

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