The infrastructure of phasor measurements have evolved over the last two decades from isolated measurement units to networked measurement systems with footprints beyond individual utility companies. This is, to a great extent, a bottom-up self-evolving process except some local systems built by design. Given the number of phasor measurement units (PMUs) in the system is small (currently 70 each in western and eastern interconnections), current phasor network architecture works just fine. However, the architecture will become a bottleneck when large number of PMUs are installed (e.g. >1000~10000). The need for phasor architecture design has yet to be addressed. This paper reviews the current phasor networks and investigates future architectures, as related to the efforts undertaken by the North America SynchroPhasor Initiative (NASPI). Then it continues to present staged system tests to evaluate the performance of phasor networks, which is a common practice in the Western Electricity Coordinating Council (WECC) system. This is followed by field measurement evaluation and the implication of phasor quality issues on phasor applications.
Revised: August 20, 2009 |
Published: July 31, 2008
Citation
Huang Z., and J.E. Dagle. 2008.SynchroPhasor Measurements: System Architecture and Performance Evaluation in Supporting Wide-Area Applications. In 2008 IEEE Power Engineering Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. Piscataway, New Jersey:IEEE.PNNL-SA-58349.doi:10.1109/PES.2008.4596890