By Topic

Considerations for the Application of Synchrophasors to Predict Voltage Instability

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

6 Author(s)

Growth in electric load, without a corresponding growth in service infrastructure, results in systems operating closer to voltage and frequency instability. While rotor angle stability, or real power stability, can be determined by balancing load and generation, until recent advances in technology, it was difficult to quantify or predict voltage stability. Synchronized phasor measurements (synchrophasors) are a new technology that provides a tool for system operators and planners to measure the state of the electrical system. Synchrophasors measure voltages and currents, at diverse locations on a power grid, and can output accurately time-stamped voltage and current phasors. Implementing a synchrophasor system involves a number of discrete stages. Implementation may involve using phasor measurement and control units (PMCUs) at locations suitable to provide the desired inputs to predictive algorithms, then establishing communication from those sites to a central location for data processing. At the central location, the data from the different locations must be correlated, displayed, and recorded. This paper discusses the completion of these steps for a unique R&D demonstration project installed by Long Island Power Authority. Long Island Power Authority will use data collected from this project to determine future steps to continue work to improve system reliability by testing a predictive model to preempt steady-state voltage collapse. We discuss concerns, trade-offs made, lessons learned during installation, and initial operation of the system

Published in:

2006 Power Systems Conference: Advanced Metering, Protection, Control, Communication, and Distributed Resources

Date of Conference:

14-17 March 2006