Correction to “An Adaptive Controller for Power System Stability Improvement and Power Flow Control by Means of a Thyristor Switched Series Capacitor (TSSC)” [Feb 10 381-391

At present, power demand is increasing day by day so we have to transfer more power and for this we must have to improve stability limits of our power system. In this paper application of static synchronous series compensator (SSSC) for enhancement of power system stability is throughout investigated. SSSC is effectively utilized for power flow control in the power system. A SSSC-based damping controller is proposed for power oscillation damping and to improve the rotor angle stability. A improved control signal can be superimposed as a power flow control signal for SSSC damping controller to improve the rotor angle stability and power oscillation damping in system. Speed deviation of rotor is taken as the input signal to the SSSC damping controller. A single machine infinite bus system (SMIB) with SSSC is simulated in MATLAB/Simulink software. Simulation results shows the effectiveness of this controller for power system stability enhancement under different fault conditions.

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Power Flow Control in Power System Using FACT Device Thyristor Controlled Series Capacitor (TCSC)

IOSR Journal of Electrical and Electronics Engineering ◽

10.9790/1676-0767283 ◽

2013 ◽

Vol 7 (6) ◽

pp. 72-83 ◽

Cited By ~ 2

Author(s):

Priyanka Kathal ◽

Keyword(s):

Power System ◽

Flow Control ◽

Power Flow ◽

Power Flow Control ◽

Thyristor Controlled Series Capacitor ◽

Series Capacitor

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.385-386.1078 ◽

2013 ◽

Vol 385-386 ◽

pp. 1078-1081 ◽

Cited By ~ 1

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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