What is the need of UPFC?
The UPFC allows a secondary but important function such as stability control to suppress power system oscillations improving the transient stability of power system.
Where is UPFC used?
A Unified Power Flow Controller (UPFC) is used to control the power flow in a 500 kV transmission system. The UPFC located at the left end of the 75-km line L2, between the 500 kV buses B1 and B2, is used to control the active and reactive powers flowing through bus B2 while controlling voltage at bus B1.
What are the multiple functionalities of UPFC?
The UPFC is the most versatile FACTS controller developed so far, with all encompassing capabilities of voltage regulation, series compensation, and phase shifting. It can independently and very rapidly control both real- and reactive power flows in a transmission.
What can be controlled by UPFC?
The unified power flow controller (UPFC) realizes real-time control over power flow in transmission lines by adjusting the line parameters, including node voltages, phase angle, and line impedance, which cover all adjustable parameters of other FACTS.
What are the functional merits of UPFC over SVC and TCSC?
In this respect, UPFC has the advantage over TCSC and phase shifter that it can control not only real power but also reactive power flow on transmission lines simultaneouslyIndex Terms – Flexible AC transmission systems (FACTS), FACTS Controllers, Power flow, Real and reactive power, SSSC, TCSC, Unified power flow …
What is UPFC why it is called Unified how active and reactive powers are independently controlled with UPFC?
The Unified Power Flow Controller (UPFC) is a second generation FACTS device which enables independent control of active and reactive power besides improving reliability and quality of the supply. … Simulations are carried out in Matlab/Simulink environment to validate the performance of the UPFC.
Which of the two devices characteristics are combined in UPFC?
UPFC is the combination of STATCOM and SSSC which are coupled by via a common DC link.
What is Ipfc power system?
The interline power flow controller (IPFC) is a voltage-source-converter (VSC)-based flexible AC transmission system (FACTS) controller which can inject a voltage with controllable magnitude and phase angle at the line-frequency thereby providing compensation among multiple transmission lines.
In which year the UPFC concept was proposed?
The UPFC concept was proposed by Gyugyi in 1991. It is able to control, simultaneously or selectively all the parameters affecting power flow in the transmission line (i.e., voltage, impedance and phase angle). UPFC consists of two switching converters operated from a common DC link, as shown in Fig.
What is meant by FACTS in power systems discuss about UPFC type FACTS device?
FACTS has been the focal device in power system, because of the applicability to enhance the stability of power system voltage, angle, and frequency stability. … These problems are voltage dips, harmonics, unbalance reactive power compensation, etc. The control devices custom is DSTATCOM, UPFC, and DVR [16].
What are the advantages of Ipfc?
Therefore, the IPFC is capable to level both active and reactive power flow between the lines, to reduce overloading of lines by active power transfer, and to increase the effectiveness of the overall compensating system for the dynamic disturbance.
What is Ipfc controller?
The interline power flow controller (IPFC) is a voltage-source-converter (VSC)-based flexible AC transmission system (FACTS) controller which can inject a voltage with controllable magnitude and phase angle at the line-frequency thereby providing compensation among multiple transmission lines.
What is Ipfc?
The Interline Power Flow Controller (IPFC) is one of the latest generation Flexible AC Transmission Systems (FACTS) controller used to control power flows of multiple transmission lines. … Interline power flow controller is a versatile device can be used to control power flows of a multi-line system or sub-networks.
What are the advantages of Ipfc over UPFC?
Advantages and limitations Compared to the UPFC, the IPFC provides a relatively economical solution for multiple transmission line power flow control, since only one shunt converter is involved. The performance of the IPFC enhances when more series converter involves in the IPFC system.
In which year the Upfc concept was proposed?
The UPFC concept was proposed by Gyugyi in 1991. It is able to control, simultaneously or selectively all the parameters affecting power flow in the transmission line (i.e., voltage, impedance and phase angle). UPFC consists of two switching converters operated from a common DC link, as shown in Fig.