An adaptive stabilizer for thyristor controlled static VAR compensators for power systems

Journal Article · Mon May 01 00:00:00 EDT 1989 · IEEE Trans. Power Syst.; (United States)

DOI:https://doi.org/10.1109/59.193809· OSTI ID:6173798

Dash, P K; Sharaf, A M; Hill, E F

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), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 4:2; ISSN ITPSE
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104* -- Fossil-Fueled Power Plants-- Components
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
COMPUTERS
CONTROL SYSTEMS
DIGITAL SYSTEMS
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
IMPLEMENTATION
INTERCONNECTED POWER SYSTEMS
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
POWER SYSTEMS
POWER TRANSMISSION
SEMICONDUCTOR DEVICES
STABILITY
SWITCHING CIRCUITS
THYRISTORS
VAR CONTROL SYSTEMS