NDLI: On the Role of Phasor Measurement Units for Distribution System State Estimation

Content Provider	IEEE Xplore Digital Library
Author	Macii, D. Barchi, G. Schenato, L.
Copyright Year	2014
Description	Author affiliation: DISI, Univ. of Trento, Trento, Italy (Barchi, G.) \|\| DII, Univ. of Trento, Trento, Italy (Macii, D.) \|\| DEI, Univ. of Padova, Padua, Italy (Schenato, L.)
Abstract	The Phasor Measurement Units (PMUs) are currently considered among the most useful instruments for future smart grid monitoring, due to their ability to measure with great accuracy both magnitude and phase of voltages or currents synchronized to the Coordinated Universal Time (UTC). In this paper, the role of PMUs and their impact on distribution system state estimation (DSSE) are reviewed and analyzed in a meaningful case study via numerical simulations. The reported results confirm that a limited number of PMUs can considerably improve the accuracy of state estimation based on the Weighted Least Squares (WLS) approach. However, this improvement seems to plateau when more than about 1/3 of grid nodes or branches are instrumented with PMUs, regardless of the placement sequence. When some state variables (i.e. voltage magnitudes and phases) are measured directly, the overall average estimation uncertainty is approximately a linear function of PMU accuracy, with a trend which is quite independent on the number of instruments. A more in-depth analysis of this behavior could be exploited to minimize the overall deployment expenses for a given state estimation uncertainty, once the relationship between PMU unit cost and accuracy is available.
Starting Page	1
Ending Page	6
File Size	655310
Page Count	6
File Format	PDF
e-ISBN	9781479949885
DOI	10.1109/EESMS.2014.6923277
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-17
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage measurement Accuracy Phase measurement Uncertainty Instruments Current measurement Phasor measurement units Weighted least square estimation Smart grids Phasor Measurement Units State estimation Power distribution systems
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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