Improved static VAR compensator control
This project examines many of the control aspects of static VAR compensators (SVCS) important for transmission-system applications. Underlying principles and control-design guidelines are given for each of five topics: (1) voltage regulator stability, (2) power swing damping enhancement, (3) second-harmonic interactions, (4) unbalanced faults, and (5) use of mechanically-switched capacitors versus all-thyristor control. Two additional aspects of SVC application emerged during this research: the potential for interaction between the SVC and subsynchronous-torsinal modes of vibration on turbine-generators and interactions between the SVC voltage regulator and subsynchronous resonances associated with series-compensated ac lines.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); General Electric Co., Schenectady, NY (United States). Power Systems Engineering Dept.
- Sponsoring Organization:
- EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 7178498
- Report Number(s):
- EPRI-TR-100696
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
AC SYSTEMS
CAPACITORS
CONTROL SYSTEMS
DAMPING
DESIGN
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
EQUIPMENT
EVALUATION
HARMONICS
OSCILLATIONS
POWER SUBSTATIONS
POWER SYSTEMS
POWER TRANSMISSION
SEMICONDUCTOR DEVICES
STABILITY
THYRISTORS
VAR CONTROL SYSTEMS
VOLTAGE REGULATORS