Reliability and availability study on substation automation system based on IEC 61850

Abstract

The introduction of IEC61850 standards for substation automation requires the specification of the reliability and availability performance parameter. Presently, the methodology to calculate and verify the parameters is not readily available. This paper proposed a methodology to calculate the parameters at device level, bay level and substation level. The paper will propose suitable monitoring and evaluation of those parameters for future improvement.

On the status of reliability studies involving primary and secondary equipment applied to power system

“…As shown in Fig. 1, the ICT framework in substation management can be seen distributed in 3 layers: bay level, remote level and substation level [6,16]. The local bay computer connected to the management of specific equipment should reliably communicate with the higher control levels.…”

“…An automated remote control capable of communicating within these layers resulting in optimal decision support is the objective of system automation. [11,[16][17][18] explain the reliability representation of bay level control units along with some corresponding data and Fig 2 illustrates interaction of some of these units with overall system. Some more related works within this area were reviewed.…”

Composite automated distribution system reliability model considering various automated substations

“…Three architectures, designated as ring, cascading, and star, are considered in this paper [8,20] as shown in Figs. [2][3][4]. The more detailed explanations of these architectures can be found in [8].…”

“…On the one hand, there are several previous works which consider reliability or availability of the substation control network topologies based on the fault tree analysis, event tree method, reliability block diagram (RBD) approach or tie sets methodology [1][2][3][4][5][6][7][8][9][10]. Moreover, the literatures [11,12] present approaches to quantitatively evaluate the reliability of various automated substation configurations in the presence of different SASs.…”

Impact of Imperfect Repairs and Diagnostic Coverage on the Reliability of Multi-Channel IEC-61850 Substation Communication Network

“…A detailed review of reliability evaluation methods for IEC-61850 based SCN is presented in [6]- [9], which highlight this aspect. More reliability and availability comparison studies are presented in [10], [11]. As a result, the methods exaggerated system performance is obtained through their use; which sees the system appears to underperform during its useful life [1], [9], [12], [13].…”