The UPFC is a combination of a static synchronous compensator (STATCOM) and a static synchronous series compensator (SSSC) coupled via a common DC voltage link.
Unified power flow controller (UPFC) is one of the most advanced FACTS devices and is a combination of STATCOM and a SSSC. UPFC may be seen to consist of two VSCs sharing a common capacitor on their dc side and a unified control system.
I use Microsoft Windows 10 21H2, Build 19044.1645, and every time when I boot up my laptop, I see a process named Updateability from SCM, or upfc.exe. Although it takes only 0,6MB RAM when it's running and pretty much 0% CPU, Disk, GPU and Network.
Ø The UPFC is the most versatile FACTS controller developed so far, with all encompassing capabilities of voltage regulation, series compensation, and phase shifting. Ø It can independently and very rapidly control both real- and reactive power flows in a transmission.
Abstract: The Unified Power Flow Controller (UPFC) is a generalized AC transmission controller that has multiple functional capabilities and thus, it is capable of performing simultaneously or selectively the compensation and control functions of different individual line compensators and controllers.
The Unified Power Flow Controller (UPFC) proposed by Gyugyi is the most versatile FACTS controller for the regulation of voltage and power.....
The Unified Power Flow Controller (UPFC) provides the reactive shunt compensation, active and reactive series compensation and phase shifting.
Unified Power Flow Controller (UPFC) is a combination of Static Synchronous Compensator (STATCOM) and Static Synchronous Series Compensator (SSSC) which are coupled via the DC link.