Projects per year
Emerging power system protection and control applications require faster-responding measurements and more accurate knowledge of the actual latency of the measurement and communications systems. A new method for accurately determining the reporting latency of a phasor measurement unit (PMU) has been developed and demonstrated. This method operates in real-time, works passively for any existing PMU without requiring changes to the PMU hardware or software, and it is very accurate - providing a measurement uncertainty of ¡500 ns in many cases, significantly surpassing the 0.002 s accuracy requirement in the most recent IEEE Synchrophasor standard. Only low-cost hardware and open source software are required. It is particularly important to understand end-to-end system latency, including the impact of local and wide-area communications, rather than just the latency of the PMU device; the proposed method also supports such practical measurements. It is therefore shown how this advance can be used to enable efficient, but realistic, cross-domain power system simulation studies, which incorporate measurement and communications delays. These capabilities address complexity and uncertainty in the design and operation of future PMU-based protection and control functions for new smart grid services.
- phasor measurement units
- sampled values
- time synchronization
1/06/18 → 31/05/21
Blair, S., Matheson, N., Munro, R. & Booth, C., 17 Jun 2019. 8 p.
Research output: Contribution to conference › PaperOpen AccessFile
Blair, S., 15 May 2019. 25 p.
Research output: Contribution to conference › SpeechOpen AccessFile