High power density IGBT module for high reliability applications

2009 ◽  
Author(s):  
D.J. Chamund ◽  
L. Coulbeck ◽  
D.R. Newcombe ◽  
P.R. Waind
Keyword(s):  
Power Density ◽  
High Power ◽  
High Reliability ◽  
High Power Density ◽  
Igbt Module

Design and Characteristics of Microfocus X-ray Source with Sealed Tube and Transmissive Target on Diamond Window

2021 ◽  
Vol 79 (6) ◽  
pp. 631-640
Author(s):  
Takaaki Tsunoda ◽  
Takeo Tsukamoto ◽  
Yoichi Ando ◽  
Yasuhiro Hamamoto ◽  
Yoichi Ikarashi ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Speed ◽  
Electronic Device ◽  
High Reliability ◽  
Electronic Devices ◽  
Lithium Ion ◽  
High Power Density ◽  
High Magnification ◽  
X Ray

Electronic devices such as medical instruments implanted in the human body and electronic control units installed in automobiles have a large impact on human life. The electronic circuits in these devices require highly reliable operation. Radiographic testing has recently been in strong demand as a nondestructive way to help ensure high reliability. Companies that use high-density micrometer-scale circuits or lithium-ion batteries require high speed and high magnification inspection of all parts. The authors have developed a new X-ray source supporting these requirements. The X-ray source has a sealed tube with a transmissive target on a diamond window that offers advantages over X-ray sources having a sealed tube with a reflective target. The X-ray source provides high-power-density X-ray with no anode degradation and a longer shelf life. In this paper, the authors will summarize X-ray source classification relevant to electronic device inspection and will detail X-ray source performance requirements and challenges. The paper will also elaborate on technologies employed in the X-ray source including tube design implementations for high-power-density X-ray, high resolution, and high magnification simultaneously; reduced system downtime for automated X-ray inspection; and reduced dosages utilizing quick X-ray on-and-off emission control for protection of sensitive electronic devices.

Thermal Resistance Analysis and Simulation of IGBT Module with High Power Density

2013 ◽  
Vol 303-306 ◽  
pp. 1902-1907 ◽  
Author(s):  
Yi Bo Wu ◽  
Guo You Liu ◽  
Ning Hua Xu ◽  
Ze Chun Dou
Keyword(s):  
Thermal Resistance ◽  
Power Density ◽  
High Power ◽  
Resistance Management ◽  
Equivalent Circuit Model ◽  
Element Model ◽  
Equivalent Model ◽  
High Power Density ◽  
Power Module ◽  
Igbt Module

As the IGBT power modules have promising potentials in the application of the field of traction or new energy, the higher power density and higher current rating of the IGBT module become more and more attractive. Thermal resistance is one of the most important characteristics in the application of power semiconductor module. A new 1500A/3300V IGBT module in traction application is developed successfully by Zhuzhou CSR Times Electric Co., Ltd (Lincoln). Thermal resistance management of this IGBT module with high power density is performed in this paper. Based on thermal nodes network, an equivalent circuit model for thermal resistance of power module is highlighted from which the steady state thermal resistance can be optimized by theoretical analysis. Furthermore, thermal numerical simulation of 1500A/3300V IGBT module is accomplished by means of finite element model (FEM). Finally, the thermal equivalent model of the IGBT module is verified by simulation results.

The new 7th generation IGBT module with high compactness and high power density

2015 ◽  
Author(s):  
Naoki Mitamura ◽  
Junya Kawabata ◽  
Yoshiyuki Kusunoki ◽  
Yuichi Onozawa ◽  
Yasuyuki Kobayashi ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Igbt Module

Additive Manufacturing: A New Paradigm for the Next Generation of High-Power-Density Direct-Drive Electric Generators

2018 ◽  
Author(s):  
Austin C. Hayes ◽  
Latha Sethuraman ◽  
Lee Jay Fingersh ◽  
Katherine Dykes
Keyword(s):  
Additive Manufacturing ◽  
Power Density ◽  
Systems Engineering ◽  
High Power ◽  
Complex Geometry ◽  
High Reliability ◽  
High Power Density ◽  
Direct Drive ◽  
Sand Cast ◽  
Lattice Design

In recent years, there has been a growing demand for high-power-density direct-drive generators in the wind industry owing to their high reliability, torque per unit volume, and conversion efficiencies. However, direct-drive wind turbine generators are very large, low-speed electric machines, which pose remarkable design and manufacturing issues that challenge their upscaling potential and cost of implementation. With air-gap tolerance as the main design driver, the need for high stiffness shifts the focus toward support-structure design that forms a significant portion of the generator’s total mass. Existing manufacturing processes allow the use of segmented-steel-weldment disk or spoke-arm assemblies that yield stiffer structures per unit mass but tend to be heavier and more expensive to build. As a result, there is a need for a transformative approach to realize lightweight designs that can also facilitate series production at competitive costs. Inspired by recent developments in metal additive manufacturing (AM), we explore a new freedom in the structural design space with a high potential for weight savings in direct-drive generators. This includes the feasibility of using nonconventional complex geometries, such as lattice-based structures as structurally efficient options. Powder-binder jetting of a sand-cast mold was identified as the most feasible AM technology to produce large-scale generator rotor structures with complex geometry. A parametric optimization study was performed and optimized results within deformation and mass constraints were found for each design. The response to the maximum Maxwell stress due to unbalanced magnetic pull was also explored for each design. Further, a topology optimization was applied for each parameter-optimized design to validate results and provide insights into further mass reduction. These novel designs catered for AM are compared in both deflection and mass to conventional rotor designs using NREL’s systems engineering design tool, GeneratorSE. The optimized lattice design with a U-beam truss resulted in a 24% reduction in structural mass of the rotor and 60% reduction in radial deflection. It is demonstrated that additive manufacturing shifts the focus from manufacturability constraints toward lower mass.

The compact and high power density 7th generation IGBT module

2015 ◽  
Author(s):  
Alexander Theisen ◽  
T. Heinzel ◽  
J. Kawabata ◽  
Y. Kusunoki ◽  
Y. Nishimura ◽  
...  
Keyword(s):  
Power Density ◽  
High Power ◽  
High Power Density ◽  
Igbt Module

scholarly journals Single‐phase current source converter with high reliability and high power density

2020 ◽  
Vol 13 (6) ◽  
pp. 1218-1226
Author(s):  
Wenjing Xiong ◽  
Yonglu Liu ◽  
Zhihao Lin ◽  
Yao Sun ◽  
Mei Su
Keyword(s):  
Power Density ◽  
High Power ◽  
Single Phase ◽  
High Reliability ◽  
Current Source ◽  
High Power Density ◽  
Phase Current ◽  
Current Source Converter
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