Performance analysis of process bus communication in a Central Synchrocheck application

Thrybom, Linus; Sivanthi, Thanikesavan; Pignolet, Yvonne-Anne

doi:10.1109/etfa.2015.7301443

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…The results in Figure 9 assume worst case network loads for the simulation, with network sizes ranging from 10 to 60 bays. Figure 9: Latencies and inter-arrival times for SV and GOOSE traffic [12] The results from Figure 9 validate that network transfer times can be assumed to be in the area of TT6 or better (600us or better in average), both for latencies for sampled values traffic, as well as GOOSE traffic up-and downstream latencies, for various network configurations consisting of HSR and PRP or point-to-point combinations.…”

Section: Impact Of the Communication Network On Performancementioning

confidence: 60%

“…If we assume process bus network design following a traditional partitioning per bay and connected devices are therefore limited more or less to one bay only, we can safely assume that the maximum network transfer time delay of 600µs as demanded by TT6 can be respected with network sizes of up to 16 hops in case of HSR and up to 9 hops in case of PRP or non-redundant process bus networks. Further analysing whether the maximum transfer time delay can be kept within the defined boundaries, [12] uses the example of a central synchrocheck applicationusing samplings from merging units and issuing commands to breaker IEDsin order to assess performance aspects for other network architecture configurations according to [10] next to HSR and PRP setups. The results in Figure 9 assume worst case network loads for the simulation, with network sizes ranging from 10 to 60 bays.…”

Section: Impact Of the Communication Network On Performancementioning

confidence: 99%

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Performance considerations in digital substations

Meier

Werner

Popescu-Cirstucescu

2016

13th International Conference on Development in Power System Protection 2016 (DPSP)

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Today's substation automation, protection and control applications use IEC 61850 messaging typically only for control related and relatively static functions like blocking and interlocking schemes. With the introduction of process bus communication in digital substations copper wiring is being replaced by digital communication using IEC 61850. This shift towards a higher usage of Ethernet-based communication increases the overall performance requirements of IEC 61850 communication systems, as well as of protection and control devices. The process bus transmits sampled analogue values according IEC 61850-9-2 supplied by merging units as well as binary GOOSE messages for dynamic and time critical applications such as circuit breaker tripping. This poses new requirements on products and communication systems to ensure timely handling of real-time data for proper performance of the substation protection, automation and control functions. The paper discusses performance considerations in digital substations by looking into requirements of products on process level such as merging units, sensors and breaker IEDs (intelligent electronic devices), as well as on bay level protection and control devices. Also system aspects like communication network design are taken into account. Two examples for AIS (air insulated system) and GIS (gas insulated system) substations are used to verify the standardized performance figures defined in IEC 61850, IEC 60044 and IEC 61869 standards. As supporting information a short overview of IEC 61850 GOOSE performance testing explains how GOOSE performance for IEDs is assessed and certified.

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Section: Impact Of the Communication Network On Performancementioning

confidence: 60%

Section: Impact Of the Communication Network On Performancementioning

confidence: 99%

Performance considerations in digital substations

Meier

Werner

Popescu-Cirstucescu

2016

13th International Conference on Development in Power System Protection 2016 (DPSP)

View full text Add to dashboard Cite

show abstract

“…The process bus communicates the current and voltage samples with the application layer protocol SAV (IEC 61850‐9‐2) and binary values as generic object oriented substation event (GOOSE) (IEC 61850‐8‐1) messages between the MUs and protection relays. In [7], the process bus performance is analysed in case of a centralised function such as synchrocheck and states that the tight sampled value (SV) requirements might be violated in case of a failure of the high‐availability‐seamless‐redundancy ring. Therefore reliability, speed and real‐time performance of the communication solution are of high importance.…”

Section: Related Work Of Cpc Architecturesmentioning

confidence: 99%