Call For Paper Volume:4 Issue:8 Aug'2017 |

Unified Power flow controller for reactive power compensation based on reference frame theory

Publication Date : 30/01/2016



Author(s) :

Shasikala.G.


Volume/Issue :
Volume 3
,
Issue 1
(01 - 2016)



Abstract :

This paper proposes a new algorithm to generate reference voltage for a unified power flow controller (UPFC) operating in voltage control mode. The proposed scheme exhibits several advantages compared to traditional voltage-controlled UPFC. The proposed scheme ensures that unity power factor (UPF) is achieved at the load terminal during nominal operation, which is not possible in the traditional method. Also, the compensator injects lower currents and, therefore, reduces losses in the feeder, voltage source converter and voltage source inverter. Further, a saving in the rating of UPFC is achieved which increases its capacity to mitigate voltage sag. Nearly UPF is maintained, while regulating voltage at the load terminal, during load change. The state-space model of UPFC for fast load voltage regulation during voltage disturbances. With these features, this scheme allows UPFC to tackle power-quality issues by providing power factor correction, harmonic elimination, load balancing, and voltage regulation based on the load requirement. Simulation results are presented to demonstrate the efficacy of the proposed algorithm.


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Unified Power flow controller for reactive power compensation based on reference frame theory

January 30, 2016