phasor_smart_grid

Real-world synchrophasor solutions

Submitted by admin on Tue, 08/16/2011 - 03:10

Publication Type:

Conference Paper

Authors:

Schweitzer, E.O.; Whitehead, D.E.

Source:

Protective Relay Engineers, 2009 62nd Annual Conference forProtective Relay Engineers, 2009 62nd Annual Conference for, p.536 - 547 (2009)

Keywords:

communications channel analysis, current phasing verification, distributed generation control, electric power systems, power distribution control, real-world synchrophasor, SCADA systems, SCADA verification, state estimation, substation voltage measurement refinement, substations, telecommunication channels, voltage measurement, voltage phasing verification, wide-area disturbance recording, wide-area frequency monitoring

Abstract:

Synchrophasors are no longer an academic curiosity. Today synchrophasors are providing solutions that otherwise would have been too expensive or too complicated to implement with traditional approaches. This paper examines ten synchrophasor applications being applied to monitor, visualize, and control electric power systems. 1. Voltage and current phasing verification 2. Substation voltage measurement refinement 3. SCADA verification and backup 4. Communications channel analysis 5. Wide-area frequency monitoring 6. Improved state estimation 7. Wide-area disturbance recording 8. Distributed generation control 9. Synchrophasor-assisted black start 10. Synchrophasor-based protection Included with each application is a description of the required equipment, communications channels, and data rates.

Notes:

According to the article, utility companies where already using
synchrophasors technology to visualize in real-time information about power distribution and quality. Some of the questions that phasor synchronization answered are:
• Proper phasing within a substation breaker panel lineup without using additional test equipment.
• Provided substation system topologies and data measurement refinements.
• Improved visualization over a wide area by aligning data with varying data rates.
• Analysis of disturbances in a power system, including small ones.
• Monitor and quickly analyze disturbances.
• No longer is estimation necessary since measurement is real time.

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