Use of Flexible Alternating Current Transmission System to improve power system operation – damping oscillation and power flow control

2021 ◽  
Author(s):  
Vladimir Kohan ◽  
Zsolt Conka ◽  
Michal Kolcun ◽  
Matej Karabinos ◽  
Peter Havran ◽  
...  
Keyword(s):  
Power System ◽  
Flow Control ◽  
Power Flow ◽  
Alternating Current ◽  
Transmission System ◽  
System Operation ◽  
Power System Operation ◽  
Power Flow Control ◽  
Current Transmission ◽  
Flexible Alternating Current Transmission

Research on Power Flow Control of UPFC Based on PSASP/UPI

2013 ◽  
Vol 385-386 ◽  
pp. 1078-1081 ◽  
Author(s):  
Fang Zhang ◽  
Jian Ping Chen ◽  
Chuan Dong Li ◽  
Yan Juan Wu
Keyword(s):  
Power System ◽  
Flow Control ◽  
Power Flow ◽  
System Analysis ◽  
Unified Power Flow Controller ◽  
Power Flow Control ◽  
Engineering Research ◽  
Good Convergence ◽  
Practical Engineering ◽  
Bus Voltage

The main objective of power flow control for unified power flow controller (UPFC) is to increase the transmission capacity over the existing transmission corridor or line. This paper presents a practical engineering methodology of embedding the power flow control model of UPFC into the commercial software -- power system analysis software package (PSASP) based on its user program interface (UPI) function. In the proposed methodology, the interface currents of UPFC series side and UPFC shunt side between the UPFC device and the network are used to control the transmission line power flow and UPFC bus voltage, respectively. In UPFC series side, the current of UPFC series branch is calculated from the power target equation of the controlled line. In UPFC shunt side, the shunt reactive current of UPFC is used to control the bus voltage. Simulation results on a practical power system show that the proposed methodology can be efficiently applied to the engineering research and analysis of the real power grid with UPFC with good convergence and only one control parameter needed to be prescribed.

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