Abstract
The revolution of Power Electronics Technology has given opportunities for developing the FACTS devices for stable operation of power system. In the last two decades number of Power Electronic based devices are implemented and known as FACTS (Flexible AC transmission System).These devices are effectively used for voltage control, power flow control, harmonic elimination, damping oscillation and improving transient stability and minimization of losses. Static and Transient stability enhancement of IEEE 14 bus system is done with the help of UPFC. Fault is created at a bus and the results show that by properly placing UPFC, settling time of the system can be reduced considerably making the system stable with fewer oscillations.
Highlights
Over the past ten years, applications of renewable energy in power systems have been the most common issue mentioned amongst operators, and encouraged with governmental policies, in order to utilize more green energy
Following set of elements is included in the model: Synchronous generator: The description of transient processes in synchronous generator is performed on the basis of system of Park-Gorev equations in relative units of mutual type, excluding the impact of fast transient processes in stator windings
AC transmission line. : It is represented by a Ushaped equivalent circuit without active shunt conductivity, which corresponds to two types of active power losses: losses due to the leakage current through insulators and corona losses
Summary
Over the past ten years, applications of renewable energy in power systems have been the most common issue mentioned amongst operators, and encouraged with governmental policies, in order to utilize more green energy. After a large disturbance in a power system such as a short-circuit fault, it is very crucial to maintain system transient stability for secure operation. A SVC can be continuously controlled to modify reactive power injection in order to maintain a bus voltage. [1] This paper proposes a new control strategy of shunt flexible ac transmission system (FACTS)
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