A Modified SVPWM Algorithm Providing Solution to Capacitor Balancing Problem in Diode-Clamped MLI in the Entire Modulation Region

2012 ◽  
Author(s):  
Bharatiraja Chokkalingam ◽  
Jeevananthan Seenithangam ◽  
Vijayalakshmi Subramanian ◽  
Subhransu Sekhar Dash
Keyword(s):  
Modulation Region

Current Distortion Analysis of Three-Phase PWM Rectifier in Over-Modulation Region and Application to Air-Cooled Heat Pump Chiller

2020 ◽  
Vol 140 (9) ◽  
pp. 633-641
Author(s):  
Yohei Kubota ◽  
Keiichi Ishida ◽  
Masaki Kanamori ◽  
Yuki Yanase ◽  
Takahisa Endo ◽  
...  
Keyword(s):  
Heat Pump ◽  
Pwm Rectifier ◽  
Three Phase ◽  
Distortion Analysis ◽  
Modulation Region

scholarly journals Variations of Interplanetary Parameters and Cosmic-Ray Intensities

1980 ◽  
Vol 91 ◽  
pp. 393-398
Author(s):  
A. Geranios
Keyword(s):  
Solar Flare ◽  
Recovery Time ◽  
Propagation Speed ◽  
Cosmic Ray ◽  
Interplanetary Shocks ◽  
Fast Solar Wind ◽  
Neutron Monitors ◽  
Cosmic Ray Intensity ◽  
Cosmic Ray Modulation ◽  
Modulation Region

Observations of cosmic ray intensity depressions by earth bound neutron monitors and measurements of interplanetary parameter's variations aboard geocentric satellites in the period January 1972-July 1974 are analysed and grouped according to their correlation among them. From this analysis of about 30 cases it came out that the majority of the depressions correlates with the average propagation speed of interplanetary shocks as well as with the amplitude of the interplanetary magnetic field after the eruption of a solar flare. About one fourth of the events correlates with corotating fast solar wind streams. As the recovery time of the shock-related depressions depends strongly on the heliographic longitude of the causitive solar flare, it seems that the cosmic ray modulation region has a corotative-like feature.

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