IEEE 1588 time synchronisation performance for IEC 61850 transmission substations

Han, Mingyu; Guo, Haijuan; Crossley, P.A.

doi:10.1016/j.ijepes.2018.11.036

Cited by 17 publications

(9 citation statements)

References 14 publications

(16 reference statements)

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“…These two timestamps mark the time instances when a SV message enters and leaves the network, and hence the network latency is equal to t2 -t1. More descriptions of the setup can be found in [53]. A traffic generator was used to inject background SV traffic at 50Mb/s (with the same frame size but different multicast addresses) from Redbox 8.…”

Section: A Test Networkmentioning

confidence: 99%

Methodology for Reliability Assessment of Smart Grid Considering Risk of Failure of Communication Architecture

Zhu

Han

Milanović

et al. 2020

IEEE Trans. Smart Grid

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This paper introduces an analytical method, based on the Complex Network Theory (CNT), to assess the risk of the Smart Grid failure due to communication network malfunction, associated with latency and ICT network reliability. Firstly, the communication architecture is modelled using a two-step CNT frameworkan Operation Graph (OG) in step one and a Reliability Graph (RG) in step two. Secondly, the latency of data packets and the reliability of each communication device are incorporated into the model to identify the reliability of all operational communication paths for successful power system control purposes. Then, the risk of Smart Grid failure due to the communication network malfunction is quantified using a System Reliability Index (SRI). Next, sensitivity analysis is performed to assess the importance of each communication network component using two innovative Importance Measures (IM), namely System Reliability Advancement Worth (SRAW) and System Reliability Deterioration Worth (SRDW). Finally, the proposed approach is demonstrated on a laboratory-scale communication network.

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Section: A Test Networkmentioning

confidence: 99%

Methodology for Reliability Assessment of Smart Grid Considering Risk of Failure of Communication Architecture

Zhu

Han

Milanović

et al. 2020

IEEE Trans. Smart Grid

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“…The fiber cable is considered as a very high data transmission rate. The acceleration facility is contributing to isolate the line instantaneously at the fault happen in the transmission line [52][53]. This facility important at the line fault near one side which the remote IED protection relay calculate the fault impedance in the zone two boundaries, which will send the trip order after 200 ms to 500 ms delay time.…”

Section: Iec 61850 For Aided Trip Schemementioning

confidence: 99%

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2020

JESTR

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The substation automation technologies are considered as the highlights points to innovation with the researchers and electric companies, which resulted in the development of numerous protocols and standards. The high voltage substation control system is considered as one of the main challenges to reach the optimum operating system. In the past, it's difficult to re-install the protection or control relay by a different manufacturer, to avoid the log-off the communication with the substation control system. The International Electro-Technical Commission (IEC) 61850 protocol is a new technique for the communication and remote control of the Substation Automation System (SAS). IEC 61850 protocol is a more flexible communication system for control, fast for operation, high accuracy measurements and interoperability between many different manufactures Intelligent Electronic Devices (IEDs). The Generic Object-Oriented Substation Event (GOOSE) is the light important function in IEC 61850 protocol to represent a status function from the remote IEDs to operates in the local IEDs. This paper discusses the substation automation system control depending on the IEC 61850 communication protocol for the optimum automation system. The simulation in this paper has been validated with 220.0 kV transmission line and 220.0/66.0 kV power transformer to discusses the actual operating system for control, alarms, status, and measurements.

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“…Wide variability and disturbances, which are considered as inherent characteristics of an Ethernet-based network environment, are two of the technical difficulties preventing the wide spread of practical PTP applications in power systems [11,12,13,14,15,16,17]. There have been many efforts to provide an adaptive method to compensate the effects of variability and disturbances of network environment [18,19,20], eventually to achieve an effective and fault-tolerant control of time synchronization [21]. Proper modeling of a disturbance environment and its reflection into a PTP time synchronization control algorithm should be emphasized for effective and satisfactory compensation of the effects of disturbances [18].…”

Section: Introductionmentioning

confidence: 99%

Improved Time-Synchronization Algorithm Based on Direct Compensation of Disturbance Effects

Seo

Son

et al. 2019

Sensors

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In this paper, an improved time-synchronization algorithm is proposed. The improvement of time synchronizing performance was achieved by introducing a stochastic model-based direct compensation of the disturbance effects appearing in the IEEE 1588 Precision Time Protocol (PTP)-based time synchronization system. A dynamic model of PTP clock system was obtained by reflecting the three major sources of disturbances, i.e., clock frequency drift, clock rate offset, and network noise. With the application of the dynamic model of the PTP clock system, the effects of the disturbances can be effectively eliminated in the PTP time synchronization control loop. Computer simulations are performed to verify the performance of the proposed time synchronization algorithm by applying the various types of disturbances, including network noise and clock drift. The simulation results are compared with those of other representative time synchronization algorithms, i.e., IEEE 1588 PTP algorithm and Kalman-filter-based algorithm. It is shown that the proposed algorithm improves time synchronizing performance up to 84% with respect to that of the Kalman-filter-based synchronization algorithm when simulated with colored noise type disturbances. The proposed time synchronization algorithm is expected to contribute for the realization of future Ethernet-based industry-plant monitoring and control including IEC 61850-based digital substation.

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IEEE 1588 time synchronisation performance for IEC 61850 transmission substations

Cited by 17 publications

References 14 publications

Methodology for Reliability Assessment of Smart Grid Considering Risk of Failure of Communication Architecture

Methodology for Reliability Assessment of Smart Grid Considering Risk of Failure of Communication Architecture

Untitled

Improved Time-Synchronization Algorithm Based on Direct Compensation of Disturbance Effects

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