IED modelling for IEC61850 based substation automation system performance simulation

Abstract

This paper introduces the modeling of Intelligent Electronic Device (IED) on OPNET modeler, a communication network modeling and simulation tool developed by OPNET TECHNOLOGIES. These configurable IED models allow to easily build Substation Automation System (SAS) network model with different topologies for all kinds of substations so that the dynamic performance issues could be studied during the planning stage and network performance problem could be caught ahead of the deployment stage. An example of using those models to construct SAS network on OPNET Modeller as well as the network performance simulation results is also included in this paper.

Traffic generation of IEC 61850 sampled values

“…Sidhu and Yin produced two publications [8], [9] showing how the OPNET Modeler network simulator can be used to model the substation communication network and analyse the network's dynamic performance (i.e., packet delay characteristics of time-critical services). Their model of SV traffic generator mapped packets directly onto Ethernet and, in their latter publication, included handling of IEEE 802.1Q VLAN tags.…”

Analysis of end-to-end delay characteristics for various packets in IEC 61850 substation communications system

“…Once the data packets transfer has been delayed and has not been reached to the target devices within the predetermined period of time, which may lead to extremely serious consequences, and endanger the substation and even the entire grid [1][2][3][4][5][6][7][8]. The key objectives for designing any substation automation architecture are interoperability between the IEDs, satisfaction of communication performance, and extensibility of the architecture.…”

“…Also, the dynamic performance of the SAS network must be studied during the planning stage in order to catch the network performance problems ahead of the deployment stage [6]. The modeling of communication system requires the definition of objects (such as, data objects, data sets, report control, and log control, etc.)…”

“…The key objectives for designing any substation automation architecture are interoperability between the IEDs, satisfaction of communication performance, and extensibility of the architecture. The IEC 61850 is a global communication standard for substation automation system (SAS) defines the communication between the IEDs and not only solves the interoperation problem but also specifies other system requirements like message performance, information security in the SAS networks [6]. Substation communication network transmission packets have strict delay requirements, real-time study for the underlying communication network, in particular, the media access control (MAC) layer protocol, while ignoring the real-time upper-layer protocols [2].…”

Comparisons process-to-bay level peer-to-peer network delay in IEC 61850 substation communication systems

“…According to the IEC 61850-5, the message transmission time requirements for the SAS network must be ensured under any operating conditions and contingencies inside the substation to be consistent. Moreover, the dynamic performance of the SAS network must be analyzed during the planning stage in order to find the network performance problems ahead of the deployment stage (Sidhu and Yin, 2006). The modeling of communication systems requires the definition of objects (such as data objects, data sets, report control, and log control) and services provided by the objects (such as get, set, report, create, and delete) (Sidhu and Yin, 2007;IEC, 2003).…”