This report presents a simulation of a real-time phasor measurement unit (PMU) using Matlab, designed to adhere to the IEEE C.37.118 standard. A PMU utilizes measured voltage or current on the power grid and calculates the phasor, frequency and rate of change of frequency (ROCOF). They are crucial in smart grid applications, used to minimize losses and prevent damage to hardware and blackouts. The project was issued by Hitachi Energy with the purpose of utilizing the model for simulating and analyzing real-time data, assessing the PMU's response to different scenarios on the power grid. The results are intended to verify their current system's implementation. The Matlab implementation correctly calculated the phasor, phase-shift, frequency and ROCOF within the requirements of the standard. The associated Total Vector Error (TVE) also complied with the standard. However, the real-time aspect of the PMU did not comply with the standard for several reasons. Specifically the Hilbert transform and FIR filter introduced calculation and filtering delays in addition to internet transmission delays associated with the UDP-interface in Matlab. However, Matlab support confirmed that there are known performance issues with the UDP-interface. It was concluded that the model provided a solid groundwork for its intended use, though the model has yet to be tested with real data from the grid, and would benefit from additional work on optimization.
| Identifer | oai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-531389 |
| Date | January 2024 |
| Creators | Mohammed Nour, Omar, Björkhem, Folke, Boivie Myrland, Jonas, Jolhammar, Tilda |
| Publisher | Uppsala universitet, Institutionen för elektroteknik |
| Source Sets | DiVA Archive at Upsalla University |
| Language | English |
| Detected Language | English |
| Type | Student thesis, info:eu-repo/semantics/bachelorThesis, text |
| Format | application/pdf |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | ELEKTRO-E ; 24004 |
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