WAMS-Based Voltage Stability Indicator Considering Real Time Operation

Author

Arias, Diego ; Vargas, Luis ; Rahmann, Claudia

Author_Institution

Dept. of Electr. Eng., Univ. de Chile, Santiago, Chile

Volume

13

Issue

5

fYear

2015

fDate

May-15

Firstpage

1421

Lastpage

1428

Abstract

In this work, a WAMS-Based Voltage Stability Indicator considering real time operation conditions is proposed. The indicator considers operational limits, such as reactive power reserves, transmission constraints, generating capacity, and voltage limits. The proposed indicator is based on a combination of the reactive margin and the actual demand at each busbar of the system. The reactive margins are obtained from an optimization problem. Applications on a test system show that the indicator is able to identify the proximity to voltage collapse, successfully. It also provides a reliable measure to assess the system security of real time operation in power grids.

Keywords

optimisation; power system dynamic stability; power system measurement; WAMS-based voltage stability indicator; generating capacity; optimization problem; power grids; reactive margin; reactive power reserves; real time operation; transmission constraints; voltage collapse; voltage limits; Biomedical imaging; Biomedical monitoring; Monitoring; Phasor measurement units; Power system stability; Real-time systems; Stability analysis; PMU; Real-Time Analysis; Voltage stability; WAMS;

fLanguage

English

Journal_Title

Latin America Transactions, IEEE (Revista IEEE America Latina)

Publisher

ieee

ISSN

1548-0992

Type

jour

DOI

10.1109/TLA.2015.7111998

Filename

7111998