جبرانساز سری سنکرون استاتیک (SSSC): یک روش برای جبران توان راکتیو برای سیستم انتقال

Static Synchronous Series Compensator(SSSC): An approach for reactive power compensation for the trnsmission system

جبرانساز سری سنکرون استاتیک (SSSC): یک روش برای جبران توان راکتیو برای سیستم انتقال

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جبرانساز سری سنکرون استاتیک (SSSC): یک روش برای جبران توان راکتیو برای سیستم انتقال

جبرانساز سری سنکرون استاتیک (SSSC): یک روش برای جبران توان راکتیو برای سیستم انتقال

Abstract:

A transmission line needs controllable compensation for power flow control and voltage regulation. This can be achieved by FACTS controllers. Static Synchronous Series Compensator (SSSC) is a series connected FACTS controller, which is capable of providing reactive power compensation to a power system. The output of an SSSC is series injected voltage, which leads or lags line current by 90°, thus emulating a controllable inductive or capacitive reactance. SSSC can be used to reduce the equivalent line impedance and enhance the active power transfer capability of the line. In this paper, series compensation provided by an SSSC is considered.
Index Terms—Compensation, FACTS Controllers, Reactive Power, SSSC.

Introduction:

The rapid development of power electronics technology provides exciting opportunities to develop new power systems equipment for better utilization of existing systems. During the last decade a number of control devices under the term Flexible AC Transmission Systems (FACTS) technology have been proposed and implemented. The FACTS devices can be used for power flow control, loop flow control, load sharing among parallel corridors, voltage regulation, and enhancement of transient stability and mitigation of system oscillations. FACTS have become an essential and integral part of modern power systems. Modeling and digital simulation plays an important role in the analysis, design, testing and commissioning of such controllers. Static Synchronous Series Compensator (SSSC) is a series compensator of FACTS family. It injects an almost sinusoidal voltage with variable amplitude. It is equivalent to an inductive or a capacitive reactance in series with the transmission line.