Power Supply Prognostics and Health Management of High Reliability Electronic Systems in Rugged Environment

2011 ◽  
Vol 474-476 ◽  
pp. 1195-1200 ◽  
Author(s):  
Yong Guan ◽  
Sheng Zhen Jin ◽  
Li Feng Wu ◽  
Wei Pan ◽  
Yong Mei Liu ◽  
...  
Keyword(s):  
Power System ◽  
Embedded System ◽  
Power Supply ◽  
Health Management ◽  
High Reliability ◽  
Electronic System ◽  
Fixed Time ◽  
Electronic Systems ◽  
Prognostics And Health Management ◽  
Healing Model

The high reliable embedded system in rugged environment has huge potential application value. There are 34% faults in electronic system by the cause of the fault of power system. So the prognostics mechanism and the algorithm of power health has been a core support technology in applications. the fault and the deterioration and healing model of the power system in rugged environment is constructed by analysis of FFP, DFP and healing(alleviation)for improving the reliability, the usability and the maintainability. And many questions such as fixed-time maintenance and back-down maintenance depending on conventional statistical method are solved fundamentally. Finally, the prognostics and health management methods of power health in domestic and foreign presently are contrasted and analyzed.

Prognostics and Health Management of Mechanical Systems

2013 ◽  
Vol 694-697 ◽  
pp. 872-875
Author(s):  
Jiang Chang ◽  
Fang Wei
Keyword(s):  
Health Management ◽  
Mechanical Systems ◽  
Smart Sensors ◽  
Electronic Systems ◽  
System Failure ◽  
Prognostics And Health Management ◽  
Critical Systems ◽  
Embedded Sensing ◽  
Safety Critical Systems ◽  
Self Test

Reliability is an important issue to consider for mechanical systems. The state of art is regular checkup and maintenance to ensure normal operations. This is not good enough for safety-critical systems like gearboxes in vehicles and helicopters because the risk of system failure still exists, let alone the manpower and monetary cost required. Prognostics and health management (PHM) was first raised by the U.S. armed force, which should ideally be able to predict faults and schedule maintenance only when necessary by monitoring the system condition. In this paper, inspired by the idea of Built-In Self Test (BIST) in electronic systems, we propose a novel framework to fulfill the task of prognostics and health management with a set of smart sensors, consisting of embedded sensing elements, wireless communication modules and micro-controllers. Both the significance and challenges of the framework are discussed.

A Survey of Sensor Technologies for Prognostics and Health Management of Electronic Systems

2014 ◽  
Vol 602-605 ◽  
pp. 2229-2232 ◽  
Author(s):  
Wen Xue Yang ◽  
Zhe Chen ◽  
Feng Yang
Keyword(s):  
Life Cycle ◽  
Early Warning ◽  
Health Management ◽  
Life Cycle Costs ◽  
Electronic Systems ◽  
Sensor Systems ◽  
Prognostics And Health Management ◽  
Electronic Products ◽  
System Failures

Recently, the field of Prognostics and Health Management (PHM) for electronic products and systems has received increasing attention due to the potentialities to provide early warning of system failures, reduce life cycle costs, and forecast maintenance as needed. This paper introduces the sensors and their sensor technologies. The required attributes of sensors for the development for PHM of electronics are discussed. Finally, their trends in sensor systems are presented.

The Development and Solution of Intelligent Secondary Power in Space

2014 ◽  
Vol 635-637 ◽  
pp. 1118-1123
Author(s):  
Xiao Peng Wang ◽  
Ping Yu ◽  
Xian Feng Li ◽  
Xin Da Qi ◽  
Yan Wang
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Health Management ◽  
High Reliability ◽  
Serial Communication ◽  
Supply System ◽  
Power Performance ◽  
Fault Protection ◽  
Management Function ◽  
Secondary Power

Intelligent secondary power supply is a power supply which integrate power conversion , data acquisition, power control ,serial communication features for aviation, aerospace high-reliability power supply system, with the diagnosis, fault protection and power health management function. Intelligent design is a necessary measures to ensure and improve the secondary power performance , is the trend of secondary power supply system of the future, It solve the shortcomings of traditional secondary power system such as poor monitoring , lack of fault identification and diagnostics, improve the reliability of the secondary power supply greatly, has great significance to improve the design of space payload.

Application of EMI Filter in Design of Switching Power Supply

2013 ◽  
Vol 385-386 ◽  
pp. 1305-1308
Author(s):  
Pan Feng Guo ◽  
Jian Song ◽  
Hong Zhang ◽  
Xin Li ◽  
Rui Lu
Keyword(s):  
Power Supply ◽  
High Reliability ◽  
Power Converter ◽  
Experimental Results ◽  
Electronic Systems ◽  
Power Electronic ◽  
Switching Power Supply ◽  
Switching Power ◽  
Output Waveform ◽  
Emi Filter

Because of its high reliability and stable output, switching power supply is widely used in power electronic systems, but it is can not be ignored that its self-generated electromagnetic has a profound effect on the whole system. In order to suppress conducted interference generated by switching power supply, this article proposed a cascaded technology about the integrated EMI filter, and a simulation is carried out for the power converter output waveform. Experimental results show that this cascaded technology about the integrated EMI filter has a good inhibition on the harmonic.

The Research of High Reliability Secondary Power on Orbiting Carbon Observatory

2013 ◽  
Vol 712-715 ◽  
pp. 2223-2228
Author(s):  
Xiao Peng Wang ◽  
Jing Wang ◽  
Ping Yu ◽  
Xin Da Qi ◽  
Xian Feng Li ◽  
...  
Keyword(s):  
Power System ◽  
Power Supply ◽  
High Efficiency ◽  
High Reliability ◽  
Aerospace Engineering ◽  
Technical Performance ◽  
Actual Application ◽  
Secondary Power

On the research of Orbiting Carbon Observatory (OCO),There is a demand to design a power system of high-reliability, to ensure the life of the OCO. The DC/DC has been widely used in the secondary power supply in aerospace engineering with its high reliability, high integration and high efficiency. In the space, it is easy to introduce various forms of interference and noise, affect the reliability of power supply directly, thereby affecting the OCO's technical performance. To improve the reliability of the secondary power, a number of key technical discussions is taken on the Secondary Power design. Include: DC/DC, Redundancy, Derating , EMC, Heat. After taking such measures, the reliability of the secondary power supply is greatly improved, All the result of the experiment and actual application shows that the anti-interference design are effective.

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