Evaluation of power loss and efficiency for 50 kW SiC high power density converter

2016 ◽  
Author(s):  
Shan Yin ◽  
K. J. Tseng ◽  
C. F. Tong ◽  
Rejeki Simanjorang ◽  
Yong Liu ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Power Loss ◽  
High Power Density

High Power-Density SiC Converter

2008 ◽  
Vol 600-603 ◽  
pp. 1223-1226 ◽  
Author(s):  
Shin Ichi Kinouchi ◽  
Hiroshi Nakatake ◽  
T. Kitamura ◽  
S. Azuma ◽  
S. Tominaga ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
Power Loss ◽  
Cooling System ◽  
High Power Density ◽  
Loss Reduction ◽  
Effective Volume ◽  
Similar Rating ◽  
Power Densities ◽  
System Volume

A compact SiC converter having power densities about 9 W/cm3 is designed and fabricated. It is confirmed that the converter operates in a thermally permissive range. The power loss of the module of the converter measured under motor operations is less than 50% of the similar-rating Si module loss. The shrink of the effective volume of DC-link capacitor is necessary to achieve the high power-density SiC converter, in addition to the decrease of the cooling system volume due to the loss reduction caused by SiC devices.

High power density design for planetary gear transmission system

2019 ◽  
Vol 233 (16) ◽  
pp. 5647-5658 ◽  
Author(s):  
Cheng Wang
Keyword(s):  
Power Density ◽  
High Power ◽  
Power Loss ◽  
Target Function ◽  
Planetary Gear ◽  
Transmission System ◽  
Gear Transmission ◽  
Combination Method ◽  
High Power Density ◽  
Gear Transmission System

Planetary gear transmission system has been widely used in the field of aerospace equipment, automobiles, ships, etc. High power density design is an important development direction for transmission machinery, but there is a lack of systematic and deepening research in planetary gear transmission system field. Taken the most widely used 2K–H-type planetary gear transmission system as research object, a design method of high power density considering volume and efficiency is put forward. First, the transmission efficiency model of 2K–H-type planetary gear transmission system is built on the basis of calculation of single gear pair meshing efficiency instead of the look-up table method. Second, the volume model of 2K–H-type planetary gear transmission system is built according to the structure of gear. Finally, the smallest volume and the minimum power loss of 2K–H-type planetary gear transmission system are the target of optimization, and the linear-weighted combination method is used to construct target function. Taken a 2K–H-type planetary gear reducer in some machine tool as an example, the optimization is carried out. The results show that the power loss of optimized system is reduced by 11.42%, and the volume of system is reduced by 25.2%.

scholarly journals Analysis and Design of an Interleaved Switched-Capacitor Multilevel ANPC Converter

2021 ◽  
Author(s):  
LEONARDO CASSOL BACH ◽  
WILMAR ARMANDO PINEDA CASTIBLANCO ◽  
CASSIANO RECH
Keyword(s):  
Gallium Nitride ◽  
Power Density ◽  
High Power ◽  
Power Loss ◽  
Loss Estimation ◽  
Switched Capacitor ◽  
High Power Density ◽  
Analysis And Design ◽  
Loss Estimations

This paper presents an interleaved switchedcapacitor multilevel ANPC converter (SCANPC) for high power density applications. To demonstrate the feasibility of the idea, the analysis and design of the converter are made initially for one cell and after for the two cells interleaved configuration. In addition, it is used a power loss estimation methodology for the Gallium Nitride switches. Simulations and power loss estimations are shown for a 4kW power prototype.

Welding with high brilliance lasers and high power density

2010 ◽  
Author(s):  
Andreas Patschger ◽  
Markus Franz ◽  
Jens Bliedtner ◽  
Jean Pierre Bergmann
Keyword(s):  
Power Density ◽  
High Power ◽  
High Power Density
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