Validation of a methodology for service restoration on a real Brazilian distribution system

Camillo, Marcos H. M.; Romero, Marcel E. V.; Fanucchi, Rodrigo Z.; Lima, Telma Woerle de; Marques, Leandro Tolomeu; Delbem, A. B. C.; London, João Bosco Augusto

doi:10.1109/tdc-la.2014.6955192

Cited by 7 publications

(8 citation statements)

References 6 publications

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“…During CPPDSs contingencies [14] the faulted components are identified by the system operators through sensors between the system branches, the faulted branch are isolated by opening sectionalizing switches (normally-closed), and then, the operator reenergizes the healthy out-of-service branches after the disconnected one by closing tie switches (normally-open). The performance of isolation and restoration during contingencies is dependent of the switches that divide the feeders into branches, and the electrical capability of the system to restore the healthy branches after the faulted one [32].…”

Section: Cppds Service Restorationmentioning

confidence: 99%

“…Furthermore, the service restoration can be focused on different objectives [14,15,33], e.g., minimize the number of switching operations and out-ofservice customers. Additionally, changes in the system topology need to respect the system radiality and electrical constraints [14]. In summary, the service restoration is a multi-objective and multi-constrained problem that is solved by human operators at the distribution operation centers.…”

Section: Cppds Service Restorationmentioning

confidence: 99%

“…Failure Rate during a year, and in a system with a high reliability [12], it can be measured by the "number of nines" (14). 9 = − log 10 (1 − )…”

Section: Reliability Indices Equation Descriptionmentioning

confidence: 99%

“…A failure of the cyber network can cause erroneous measures of physical parameters and unrealized operator commands due to communication failure. Kirschen and Bouffard's paper [14] summarizes several blackouts that started with information and communication network failures. In particular, the Italian blackout of 2003 and the Western and Central Europe incident of 2006 did not involve electrical components failures.…”

mentioning

confidence: 99%

“…During Power Distribution Systems contingencies, the system topology is dynamically changed to either solve or minimize contingency impacts, i.e., isolate the faulted parts and restore as many out-ofservice healthy areas as possible [14]. Such service restoration is performed in distribution operation centers, and the decision-making process is based on the expertise and knowledge of each human operator [15].…”

mentioning

confidence: 99%

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Impact of operators’ performance in the reliability of cyber‐physical power distribution systems

Bessani¹,

Fanucchi²,

Delbem

et al. 2016

IET Generation, Transmission & Distribution

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Cyber-Physical Systems are the result of integrating information and communication technologies into physical systems. One particular case are Cyber-Physical Power Systems (CPPS), which use communication technologies to perform real-time monitoring and operation. These kinds of systems have become more complex, impacting on the systems' characteristics, such as their reliability. In addition, it is already known that in terms of the reliability of Cyber-Physical Power Distribution Systems (CPPDS), the failures of the communication network are just as relevant as the electrical network failures. However, some of the operators' performances, such as response time and decision quality, during CPPDS contingencies have not been investigated yet. In this paper, we introduce a model to the operator response time, present a Sequential Monte Carlo Simulation methodology that incorporates the response time in CPPDS reliability indices estimation, and evaluate the impact of the operator response time in reliability indices. Our method is tested on a CPPDS using different values for the average response time of operators. The results show that the response time of the operators affects the reliability indices that are related to the durations of the failure, indicating that a fast decision directly contributes to the system performance. We conclude that the improvement of CPPDS reliability is not only dependent on the electric and communication components, but also dependent on operators' performance.

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Section: Cppds Service Restorationmentioning

confidence: 99%