TY - JOUR
T1 - Safety Integrity Level Verification Model for IED Protection Schemes
AU - Torres, Esperanza Susana
AU - Celeita, David
AU - Sriramula, Srinivas
AU - Ramos, Gustavo
N1 - Funding Information:
Manuscript received May 15, 2019; revised October 4, 2019; accepted November 6, 2019. Date of publication March 22, 2020; date of current version July 1, 2020. Paper 2019-ESafC-0310.R1, presented at the 2019 Electrical Safety Workshop, Jacksonville, FL USA, Mar. 4–8, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Electrical Safety Committee of the IEEE Industry Applications Society. This work was financed jointly by the Administrative Department of Science, Technology, and Innovation of Colombia (COLCIENCIAS) and the National Hydrocarbon Agency (ANH) under Grant ANH-720. This work was also supported by the Lloyd’s Register Foundation (LRF) Centre for Safety and Reliability Engineering at the University of Aberdeen, United Kingdom. LRF is a U.K. charity that helps to protect the safety of life and property, and support education, engineering-related research and public engagement. (Corresponding author: Esperanza Susana Torres.) Esperanza Susana Torres and Srinivas Sriramula are with the University of Aberdeen, Aberdeen AB24 3UE, U.K. (e-mail: estorres@ieee.org; s.sriramula@abdn.ac.uk).
Publisher Copyright:
© 1972-2012 IEEE.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - The ever-increasing complexity of intelligent electronic devices (IED) for the protection of electrical equipment leads to significant research challenges in evaluating their safety integrity level (SIL). The development of new technologies, components, operation, and maintenance requirements are factors that increase uncertainties and risks associated with the safety, integrity, and reliability of the IEDs. Based on both 'the U.K. guidance on assessing the safety integrity of electrical supply protection' and Markov processes, this research proposes a methodology to assess and verify the integrity of protection schemes in industrial and commercial power systems. The average probability of failure on demand (PFDavg) and SIL level, are used to quantify the reliability of protection arrangements for radial distribution systems in accordance with the safety integrity foundations of IEC 61508 and IEC 61511 standards. The methodology is implemented with the IEEE 242-2001 case study, with illustrative results.
AB - The ever-increasing complexity of intelligent electronic devices (IED) for the protection of electrical equipment leads to significant research challenges in evaluating their safety integrity level (SIL). The development of new technologies, components, operation, and maintenance requirements are factors that increase uncertainties and risks associated with the safety, integrity, and reliability of the IEDs. Based on both 'the U.K. guidance on assessing the safety integrity of electrical supply protection' and Markov processes, this research proposes a methodology to assess and verify the integrity of protection schemes in industrial and commercial power systems. The average probability of failure on demand (PFDavg) and SIL level, are used to quantify the reliability of protection arrangements for radial distribution systems in accordance with the safety integrity foundations of IEC 61508 and IEC 61511 standards. The methodology is implemented with the IEEE 242-2001 case study, with illustrative results.
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U2 - 10.1109/TIA.2020.2982846
DO - 10.1109/TIA.2020.2982846
M3 - Article
AN - SCOPUS:85089579438
SN - 0093-9994
VL - 56
SP - 4329
EP - 4336
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 4
M1 - 9044754
ER -
