Power electronics in electric utilities: Static var compensators

Journal Article · Fri Apr 01 00:00:00 EST 1988 · Proc. IEEE; (United States)

DOI:https://doi.org/10.1109/5.4433· OSTI ID:6913936

Gyugyi, L

This paper deals with dynamic var compensation of electric power systems, applying power electronics for reactive power generation and control. After an overview of the emergence and status of modern, solid-state var compensators in utility and industrial applications, the first part of the paper explains how dynamic var compensation increases transmittable power by providing voltage support, transient stability improvement, and power oscillation damping in electric power transmission systems. Subsequent sections describe the methods of reactive power generation and control using thyristor-controlled reactors, with fixed and thyristor-switched capacitors, or modern gate turn-off (GTO) power converters that can function without ac capacitors or reactors. The last part of the paper summarizes the control structure and operation to provide the desired characteristics and performance in power system applications.

• Research Organization: Power Electronics Dept., Westinghouse R and D Center, Pittsburgh, PA (US)
• OSTI ID: 6913936
• Journal Information: Proc. IEEE; (United States), Vol. 76:4
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
42 ENGINEERING
VAR CONTROL SYSTEMS
REVIEWS
CAPACITORS
DAMPING
ELECTRICAL TRANSIENTS
GATING CIRCUITS
PERFORMANCE
POWER CONDITIONING CIRCUITS
POWER DISTRIBUTION SYSTEMS
POWER SYSTEMS
POWER TRANSMISSION
STABILIZATION
THYRISTORS
CONTROL SYSTEMS
DOCUMENT TYPES
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
ENERGY SYSTEMS
EQUIPMENT
SEMICONDUCTOR DEVICES
TRANSIENTS
VOLTAGE DROP
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)
420800 - Engineering- Electronic Circuits & Devices- (-1989)