Voltage Stability Assessments and Their Improvement Using Optimal Placed Static Synchronous Compensator (STATCOM)

Table 1

Classification of FACTS device.

Types of FACTS devices	Groups of the devices	Purposes/functions/
Shunt devices	STATCOM and SVC	Prove a specific bus’s voltage profile, transient stability, and power oscillation damping
Series devices	TCSC, TSSC, and SSSC	Enhance the voltage stability limit, transient stability margin, power oscillation damping, and subsynchronous oscillation damping
Series and shunt devices	UPFC	Provide multifunctional flexibility required to solve many of the problems