In this paper, it is shown that using the power injection model for a UPFC, there exists a set
of operating points for which the same amount of AC bus voltage and active/reactive series …

Practical application of the unified power flow controller requires proper design of each
component of the UPFC device in order to satisfy both economic requirements and technical …

Reactive power imbalances lead to voltage instability and these are major problem in power
systems. This study presents a comparative analysis of the performance of Unified Power …

Recently, the expansion process of electrical networks has become crucial with the
development of electrical systems. One of the active solutions to progress the performance …

In order to identify the weakest bus in a power system so that the Unified Power Flow
Controller could be connected, an investigation of static and dynamic voltage stability is …

Recently, the expansion process of electrical networks has become crucial with the
development of electrical systems. One of the active solutions to progress the performance …

Improper operations of UPFC can make power system lose its synchronism. This paper
explores the principle of this stability problem, and a simple system with single UPFC is set …

Occurrence of a fault in a power system causes transients. To stabilize the system, Power
System Stabilizer (PSS) and Automatic Voltage Regulator (AVR) are used. Load flow …

This paper presents a detailed report of the performance and impact of UPFC on the power
system behavior during fault conditions. A two machine—double line power system with …

This study presents the transient stability enhancement capability of Unified power flow
controller (UPFC) as an effective Flexible AC Transmission System (FACTS) device in a …