An adaptive stabilizer for thyristor controlled static VAR compensators for power systems
A static VAR systems play an important role as a stability aid for small signal and transient disturbances in an interconnected power system. Further the introduction of an adaptive stabilizer loop to its controller can significantly improve power system performance under a variety of abnormal situations such as 3-phase short-circuits, voltage collapse, load shedding, reactance switching, etc. This paper presents the analytical development of a new controller scheme for a static VAR system and presents detailed simulation results to highlight its effectiveness in comparison with a discrete PI stabilizer under a variety of operating conditions for power transmission systems. The adaptive stabilizer is suitable for microprocessor digital implementation as the numerical steps involved are minimal.
- Research Organization:
- Univ. of New Brunswick, Fredericton, N.B. (CA)
- OSTI ID:
- 6173798
- Journal Information:
- IEEE Trans. Power Syst.; (United States), Vol. 4:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
INTERCONNECTED POWER SYSTEMS
STABILITY
VAR CONTROL SYSTEMS
DIGITAL SYSTEMS
IMPLEMENTATION
MICROPROCESSORS
POWER TRANSMISSION
SWITCHING CIRCUITS
THYRISTORS
COMPUTERS
CONTROL SYSTEMS
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
MICROELECTRONIC CIRCUITS
POWER SYSTEMS
SEMICONDUCTOR DEVICES
200104* - Fossil-Fueled Power Plants- Components
990220 - Computers
Computerized Models
& Computer Programs- (1987-1989)