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Availability

Availability

Copyright: © 2016 |Pages: 33
ISBN13: 9781466694293|ISBN10: 1466694297|EISBN13: 9781466694309
DOI: 10.4018/978-1-4666-9429-3.ch009
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MLA

Shahriyar Kaboli and Hashem Oraee. "Availability." Reliability in Power Electronics and Electrical Machines: Industrial Applications and Performance Models, IGI Global, 2016, pp.339-371. https://doi.org/10.4018/978-1-4666-9429-3.ch009

APA

S. Kaboli & H. Oraee (2016). Availability. IGI Global. https://doi.org/10.4018/978-1-4666-9429-3.ch009

Chicago

Shahriyar Kaboli and Hashem Oraee. "Availability." In Reliability in Power Electronics and Electrical Machines: Industrial Applications and Performance Models. Hershey, PA: IGI Global, 2016. https://doi.org/10.4018/978-1-4666-9429-3.ch009

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Abstract

Protection methods, which were described in the previous chapter, save the converter against non-catastrophic faults. However, this method saves the converter but it also takes the converter out of the service. The subject of this chapter is converters that are not damaged but can not operate normally. In this chapter, availability of electric power converters as a most important but usually forgotten parameter is described. The concept of availability was originally developed for repairable systems that are required to operate continuously. It is explained that a system may be unavailable while none of its parts damaged. In fact, there is an important difference between reliability and availability. A converter may be highly reliable but unavailable and vice versa. One of the most important factors for this undesired state is influence of noise. In this chapter, electromagnetic interference and certain methods for reducing its undesired effects on electric power converters are presented. Electric power converters are usually the source of electromagnetic noise due to high operating voltage and/or current. Various techniques for safe operation of sensitive systems that operate close to these converters are described. In the last part of chapter, alarm management is presented based on availability concept. This method is used to prevent fast shutdown of important systems due to dispensable faults.

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