PMU-Based Detection of Voltage Imbalances with Tolerance Constraints

Tirza Routtenberg; Ricky Concepcion; Lang Tong

doi:10.1109/TPWRD.2016.2591727

PMU-Based Detection of Voltage Imbalances with Tolerance Constraints

Tirza Routtenberg, Ricky Concepcion, Lang Tong

Department of Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The problem of voltage imbalance detection in a three-phase power system using phasor measurement unit (PMU) data is considered within a hypothesis testing framework. A general model for the PMU output with a downsampled negative sequence is presented. The new formulation takes into account computation complexity and tolerance of imbalance. A new monitoring tool, referred to as a generalized locally most powerful (GLMP) test, is proposed for detection in the presence of nuisance parameters. A closed-form expression of the GLMP test is developed for the detection of an imbalance problem, based on a single PMU's measurements. Numerical simulations show improved performance over benchmark techniques.

Original language	English
Article number	7513442
Pages (from-to)	484-494
Number of pages	11
Journal	IEEE Transactions on Power Delivery
Volume	32
Issue number	1
DOIs	https://doi.org/10.1109/TPWRD.2016.2591727
State	Published - 1 Feb 2017

Keywords

Phasor measurement unit (PMU)
generalized locally most powerful (GLMP) test
microgrids
off-nominal frequencies
power system monitoring
state estimation
symmetrical components
unbalanced power system

ASJC Scopus subject areas

Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1109/TPWRD.2016.2591727

Cite this

@article{85f9d5e9e4344dc7b7f68b119355dc05,

title = "PMU-Based Detection of Voltage Imbalances with Tolerance Constraints",

abstract = "The problem of voltage imbalance detection in a three-phase power system using phasor measurement unit (PMU) data is considered within a hypothesis testing framework. A general model for the PMU output with a downsampled negative sequence is presented. The new formulation takes into account computation complexity and tolerance of imbalance. A new monitoring tool, referred to as a generalized locally most powerful (GLMP) test, is proposed for detection in the presence of nuisance parameters. A closed-form expression of the GLMP test is developed for the detection of an imbalance problem, based on a single PMU's measurements. Numerical simulations show improved performance over benchmark techniques.",

keywords = "Phasor measurement unit (PMU), generalized locally most powerful (GLMP) test, microgrids, off-nominal frequencies, power system monitoring, state estimation, symmetrical components, unbalanced power system",

author = "Tirza Routtenberg and Ricky Concepcion and Lang Tong",

note = "Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

year = "2017",

month = feb,

day = "1",

doi = "10.1109/TPWRD.2016.2591727",

language = "English",

volume = "32",

pages = "484--494",

journal = "IEEE Transactions on Power Delivery",

issn = "0885-8977",

publisher = "Institute of Electrical and Electronics Engineers",

number = "1",

}

TY - JOUR

T1 - PMU-Based Detection of Voltage Imbalances with Tolerance Constraints

AU - Routtenberg, Tirza

AU - Concepcion, Ricky

AU - Tong, Lang

PY - 2017/2/1

Y1 - 2017/2/1

N2 - The problem of voltage imbalance detection in a three-phase power system using phasor measurement unit (PMU) data is considered within a hypothesis testing framework. A general model for the PMU output with a downsampled negative sequence is presented. The new formulation takes into account computation complexity and tolerance of imbalance. A new monitoring tool, referred to as a generalized locally most powerful (GLMP) test, is proposed for detection in the presence of nuisance parameters. A closed-form expression of the GLMP test is developed for the detection of an imbalance problem, based on a single PMU's measurements. Numerical simulations show improved performance over benchmark techniques.

AB - The problem of voltage imbalance detection in a three-phase power system using phasor measurement unit (PMU) data is considered within a hypothesis testing framework. A general model for the PMU output with a downsampled negative sequence is presented. The new formulation takes into account computation complexity and tolerance of imbalance. A new monitoring tool, referred to as a generalized locally most powerful (GLMP) test, is proposed for detection in the presence of nuisance parameters. A closed-form expression of the GLMP test is developed for the detection of an imbalance problem, based on a single PMU's measurements. Numerical simulations show improved performance over benchmark techniques.

KW - Phasor measurement unit (PMU)

KW - generalized locally most powerful (GLMP) test

KW - microgrids

KW - off-nominal frequencies

KW - power system monitoring

KW - state estimation

KW - symmetrical components

KW - unbalanced power system

UR - http://www.scopus.com/inward/record.url?scp=85010679723&partnerID=8YFLogxK

U2 - 10.1109/TPWRD.2016.2591727

DO - 10.1109/TPWRD.2016.2591727

M3 - Article

AN - SCOPUS:85010679723

SN - 0885-8977

VL - 32

SP - 484

EP - 494

JO - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

IS - 1

M1 - 7513442

ER -

PMU-Based Detection of Voltage Imbalances with Tolerance Constraints

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this