Practical evaluation of telecoms for Smart Grid measurements, control and protection

The new standard C37.118.1 lays down strict performance limits for phasor measurement units (PMUs) under steady-state and dynamic conditions. Reference algorithms are also presented for the P (performance) and M (measurement) class PMUs. In this paper, the performance of these algorithms is analysed during some key signal scenarios, particularly those of off-nominal frequency, frequency ramps, and harmonic contamination. While it is found that total vector error (TVE) accuracy is relatively easy to achieve, the reference algorithm is not able to achieve a useful ROCOF (rate of change of frequency) accuracy. Instead, this paper presents alternative algorithms for P and M class PMUs which use adaptive filtering techniques in real time at up to 10 kHz sample rates, allowing consistent accuracy to be maintained across a ±33% frequency range. ROCOF errors can be reduced by factors of >40 for P class and >100 for M class devices.

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“…Data transfer time through a network (i.e. Figure 2 in [14]) might also vary between zero and 30-50ms [2,6,17].…”

Section: The Importance Of Frequency and Rocofmentioning

confidence: 99%

P and M Class Phasor Measurement Unit Algorithms Using Adaptive Cascaded Filters

Roscoe

Abdulhadi

Burt

2013

IEEE Trans. Power Delivery

148

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“…However, issues associated with these techniques such as power quality degradation, mutual interference between multiple devices and injection hardware requirement have continued to be their Achilles heel. Other researchers have detected the islanding condition by the comparison of frequency and phase at the DER with other locations in the distribution system [9,10]. This approach is simple and attractive but requires real-time telecommunication and also local back-up protection in case the telecommunication fails.…”

Section: Introductionmentioning

confidence: 99%

Passive islanding detection technique for synchronous generators based on performance ranking of different passive parameters

Raza

Arof

Mokhlis

et al. 2017

IET Generation, Transmission & Distribution

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“…Finally, Sharman et al [23,24] briefly evaluated different technologies using standards for synchrophasors. The authors concluded that wired technologies such as ADSL2 and FTTC are the best last-mile possible candidates for smart grid operations.…”

mentioning

confidence: 99%

Wireless Communication Technologies for Smart Grid Distribution Networks

Rodriguez,

Grijalva,

García

et al. 2023

XXXI Conference on Electrical and Electronic Engineering

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Practical evaluation of telecoms for Smart Grid measurements, control and protection

Cited by 7 publications

References 3 publications

P and M Class Phasor Measurement Unit Algorithms Using Adaptive Cascaded Filters

P and M Class Phasor Measurement Unit Algorithms Using Adaptive Cascaded Filters

Passive islanding detection technique for synchronous generators based on performance ranking of different passive parameters

Wireless Communication Technologies for Smart Grid Distribution Networks

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