Safety Assessment for PCS of Photovoltaic and Energy Storage System Applying FTA 


Vol. 34,  No. 1, pp. 14-20, Feb.  2019
10.14346/JKOSOS.2019.34.1.14


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  Abstract

This paper presents a safety assessment based approach for the safe operation for PCS(Power Conditioning System) of photovoltaic and energy storage systems, applying FTA. The approach established top events as power outage and a failure likely to cause the largest damage among the potential risks of PCS. Then the Minimal Cut Set (MCS) and the importance of basic events were analyzed for implementing risk assessment. To cope with the objects, the components and their functions of PCS were categorized. To calculate the MCS frequency based on IEEE J Photovolt 2013, IEEE Std. 493-2007 and RAC (EPRD, NPRD), the failure rate and failure mode were produced regarding the basic events. In order to analyze the top event of failure and power outage, it was assumed that failures occurred in DC breaker, AC breaker, SMPS, DC filter, Inverter, CT, PT, DSP board, HMI, AC reactor, MC and EMI filter and Fault Tree was drawn. It is expected that the MCS and the importance of basic event resulting from this study will help find and remove the causes of failure and power outage in PCS for efficient safety management.

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  Cite this article

[IEEE Style]

김두현, 김성철, 김의식, 남기공, 정천기, "Safety Assessment for PCS of Photovoltaic and Energy Storage System Applying FTA," Journal of the Korean Society of Safety, vol. 34, no. 1, pp. 14-20, 2019. DOI: 10.14346/JKOSOS.2019.34.1.14.

[ACM Style]

김두현, 김성철, 김의식, 남기공, and 정천기. 2019. Safety Assessment for PCS of Photovoltaic and Energy Storage System Applying FTA. Journal of the Korean Society of Safety, 34, 1, (2019), 14-20. DOI: 10.14346/JKOSOS.2019.34.1.14.

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