An improved phase-shifted carrier-based modulation and loss distribution analysis for MMC using full bridge sub-modules

2016 ◽  
Author(s):  
Kai Li ◽  
Zhengming Zhao ◽  
Liqiang Yuan ◽  
Sizhao Lu ◽  
Gaohui Feng
Keyword(s):  
Distribution Analysis ◽  
Loss Distribution

scholarly journals Research on Blade Thickness Influencing Pump as Turbine

2014 ◽  
Vol 6 ◽  
pp. 190530 ◽  
Author(s):  
Sun-Sheng Yang ◽  
Chao Wang ◽  
Kai Chen ◽  
Xin Yuan
Keyword(s):  
Hydraulic Loss ◽  
Distribution Analysis ◽  
Blade Design ◽  
Efficiency Improvement ◽  
Efficiency Curve ◽  
Loss Distribution ◽  
Performance Change ◽  
Blade Thickness ◽  
Numerical Research ◽  
Geometry Parameter

Research on the efficiency improvement of pump as turbine (PAT) is inadequate. Blade thickness is an important geometry parameter in blade design. To explore effects of blade thickness on the influence of PAT, numerical research on three different specific speeds of PATs with different blade thickness was carried out. Their performance changes with blade thickness were presented. Besides, the variations of hydraulic loss distribution with increasing blade thickness were performed. Theoretical analysis gives a reasonable explanation for the performance change. Results show thatPAT's flow versus efficiency curve ( Q-η) is lowered; flow versus head ( Q-H) curve and flow versus power ( Q-P) curve are increased with increasing blade thickness. The increase of Q-P is mainly attributed to the increase of theoretical head caused by increasing blockage of impeller inlet area. Hydraulic loss distribution analysis indicates that the total hydraulic loss within PAT is increased with increasing blade thickness. The increase of Q-H curve is a combined effect of the increase in theoretical head and the total hydraulic loss. The decrease of efficiency with increasing blade thickness indicates that the blade thickness of PAT should be as thin as possible if its strength could be met.

Performance Improvement Versus CPW and Loss Distribution Analysis of Slow-Wave CPW in 65 nm HR-SOI CMOS Technology

2012 ◽  
Vol 59 (5) ◽  
pp. 1279-1285 ◽  
Author(s):  
Xiao-Lan Tang ◽  
Anne-Laure Franc ◽  
Emmanuel Pistono ◽  
Alexandre Siligaris ◽  
Pierre Vincent ◽  
...  
Keyword(s):  
Performance Improvement ◽  
Slow Wave ◽  
Cmos Technology ◽  
Distribution Analysis ◽  
Loss Distribution ◽  
Soi Cmos

Intensity distribution analysis of cathodoluminescence using the energy loss distribution of electrons

2016 ◽  
Vol 160 ◽  
pp. 225-229 ◽  
Author(s):  
Masahiro Fukuta ◽  
Wataru Inami ◽  
Atsushi Ono ◽  
Yoshimasa Kawata
Keyword(s):  
Energy Loss ◽  
Intensity Distribution ◽  
Distribution Analysis ◽  
Loss Distribution

Ohmic Loss Distribution Analysis of a Coaxial Waveguide With Misaligned Inner Rod

2012 ◽  
Vol 59 (12) ◽  
pp. 3625-3629 ◽  
Author(s):  
Diwei Liu ◽  
Xuelian Li ◽  
Yu Yang ◽  
Xiaolan Long ◽  
Ying Zhang
Keyword(s):  
Coaxial Waveguide ◽  
Ohmic Loss ◽  
Distribution Analysis ◽  
Loss Distribution
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