A static VAR compensator (SVC) is a set of electrical devices for providing fast-acting reactive power on high-voltage electricity transmission networks.[1][2] SVCs are part of the flexible AC transmission system[3][4] device family, regulating voltage, power factor, harmonics and stabilizing the system. A static VAR compensator has no significant moving parts (other than internal switchgear). Prior to the invention of the SVC, power factor compensation was the preserve of large rotating machines such as synchronous condensers or switched capacitor banks.[5]
The SVC is an automated impedance matching device, designed to bring the system closer to unity power factor. SVCs are used in two main situations:
Connected to the power system, to regulate the transmission voltage ("transmission SVC")
Connected near large industrial loads, to improve power quality ("industrial SVC")
In transmission applications, the SVC is used to regulate the grid voltage. If the power system's reactive load is capacitive (leading), the SVC will use thyristor controlled reactors to consume VARs from the system, lowering the system voltage. Under inductive (lagging) conditions, the capacitor banks are automatically switched in, thus providing a higher system voltage. By connecting the thyristor-controlled reactor, which is continuously variable, along with a capacitor bank step, the net result is continuously variable leading or lagging power.
In industrial applications, SVCs are typically placed near high and rapidly varying loads, such as arc furnaces, where they can smooth flicker voltage.[1][6]
^ abDe Kock, Jan; Strauss, Cobus (2004). Practical Power Distribution for Industry. Elsevier. pp. 74–75. ISBN 978-0-7506-6396-0.
^Deb, Anjan K. (2000-06-29). Power Line Ampacity System. CRC Press. pp. 169–171. ISBN 978-0-8493-1306-6.
^Song, Y. H., Johns, A. T.
Flexible AC transmission systems. IEE. ISBN 0-85296-771-3.
^Hingorani, N.G. & Gyugyi, L. Understanding FACTS - Concepts and Technology of Flexible AC Transmission Systems. IEEE. ISBN 0-7803-3455-8.
^Ryan, H.M. (2001). High Voltage Engineering and Testing. IEE. pp. 160–161. ISBN 978-0-85296-775-1.
^Arrillaga, J.; Watson, N. R. (2003-11-21). Power System Harmonics. Wiley. p. 126. ISBN 978-0-470-85129-6.
and 25 Related for: Static VAR compensator information
A staticVARcompensator (SVC) is a set of electrical devices for providing fast-acting reactive power on high-voltage electricity transmission networks...
A static synchronous compensator (STATCOM) is a shunt-connected, reactive compensation device used on transmission networks. It uses power electronics...
destabilising factor: See Buoyancy compensator (diving) Buoyancy compensator (aviation) StaticVARcompensator Heisenberg compensator, key part of a Transporter...
voltage on the AC system. The most common type of FACTs device is the StaticVARCompensator (SVC), which uses Thyristors to switch and control shunt capacitors...
technical specifications of condenser unit Example 1 Static synchronous compensatorStaticVARcompensator Unified power flow controller B. M. Weedy, Electric...
Idaho, US Saab Variable Compression engine StaticVARcompensator, electrical power factor compensator IBM SAN Volume Controller Supervisor Call instruction...
Three-phase power Power electronics / Electro-mechanical Inverter StaticVARcompensator Variable-frequency drive Ward Leonard control Electric vehicles...
have been largely replaced by power electronic devices such as the StaticVARcompensator and STATCOM. A formerly common use for Transductors was in CRT displays...
electronic devices such as the staticVARcompensator or STATCOM are increasingly used. These systems are able to compensate sudden changes of power factor...
rating of 600 MW should be possible via a new 220 kV cable and a staticvarcompensator in Lübeck-Siems after 2005. Germany portal Sweden portal Energy...
that will also be used include shunt capacitors, shunt reactors, staticVARcompensators and voltage control circuits. While active power and reactive power...
varistors, and switches; active compensators (e.g., synchronous condensers, staticvarcompensators, static synchronous compensators that can be either sources...
comes in the form of synchronous condensers, staticVARcompensators and static synchronous compensators. Briefly, synchronous condensers are synchronous...
control/power factor correction devices such as capacitors, reactors or staticVARcompensators and equipment such as phase shifting transformers to control power...
STEP—Southwest Transmission Expansion Plan group (US) (electricity) SVC—StaticVARcompensator (electricity) SVEC—Shenandoah Valley Electric Cooperative SWAT—Southwest...
flexible AC transmission system (FACTS), a staticVARcompensator, or a static synchronous series compensator. Series compensation can be thought of as...
The static synchronous series compensator injects a balance voltage in series with the transmission line. On the other hand, the DVR compensates the unbalance...
such as tap-changing transformers, switched shunt compensation, staticVarcompensators, flexible AC transmission systems, etc., location and specifications...
as phase-shifters; staticVARcompensators; and flexible AC transmission systems, FACTS) throughout the system help to compensate for the reactive power...
1991 Masao Yano "For contributions to the development of staticVARcompensators and static converters for industrial systems" 1992 Athanasios C. Antoulas...