Minimum Performance Standards for Aerospace Electric Power Converters

2011 ◽  
Author(s):  
Keyword(s):  
Electric Power ◽  
Power Converters ◽  
Performance Standards ◽  
Minimum Performance

Stress Reduction

2016 ◽  
pp. 262-301
Keyword(s):  
Electric Power ◽  
Design Process ◽  
Stress Reduction ◽  
Printed Circuit Board ◽  
Power Converters ◽  
High Amplitude ◽  
Power Converter ◽  
Operating Conditions ◽  
Circuit Board ◽  
Inrush Current

After evaluation of reliability in the previous chapters and its consideration as a converter figure of merit, in this and the next chapters, guidelines for improvement of reliability are presented. These methods are used in both design and operation process of the converter. The focus of this chapter is on the component stress reduction in the design process. Based on background of chapter two, reliability of a converter increases if it operates at a set point with low stress. It is assumed that the converter is under design process or operates without fault. The methods for reliability improvement in faulty converters are discussed in the next chapters. In this chapter, methods for reducing electric field are described at both system and printed circuit board level. Low temperature operating conditions for an electric power converter are described and tools for this goal are presented. Series connection for voltage sharing and parallel connection for current sharing is explained. Novel control methods of power converters for reducing the complexity and reliable operation are presented. Control of inrush current as a typical transient problem in electric power converters is presented. Methods for preventing the over stress condition on the components in faulty cases are described. Techniques for reducing mechanical and environmental stress are expressed. Mechanical dampers for preventing the high amplitude vibration and insulating colors against humidity are presented. Industrial and real samples are presented to demonstrate application of the proposed methods.

Miniature turbo-Brayton technologies for space-borne thermal-to-electric power converters

2002 ◽  
Author(s):  
Mark V. Zagarola ◽  
Walter L. Swift ◽  
John A. McCormick ◽  
Michael G. Izenson
Keyword(s):  
Electric Power ◽  
Power Converters

scholarly journals Culture Jamming & Climate Change

2019 ◽  
Author(s):  
Brent Sturlaugson ◽  
Keyword(s):  
Climate Change ◽  
Performance Standards ◽  
Spillover Effects ◽  
Culture Jamming ◽  
Alternative Materials ◽  
The Face ◽  
Minimum Performance ◽  
Made In

While much of the fi eld of architecture claims to be concerned with the mounting effects of climate change, its tools for combating it are limited. Important gains have been made in raising minimum performance standards, developing alternative materials, and voicing support of progressive policies, but these gains are insufficient. In the face of unprecedented warming and its demonstrated spillover effects, architecture must leverage every possible angle in pursuit of a viable future, including those that capture the imagination. This project seeks to forge new relationships between architecture and climate change by using activist techniques collected under the umbrella of culture jamming.

Sign in / Sign up

Export Citation Format

Share Document