International Journal of Engineering Research in Electrical and Electronic Engineering (IJEREEE)

A Novel Approach for Improvement of Power Quality in Transmission System by Using Distributed Power- Flow Controller

Author : Raja Reddy Duvvuru ¹ B.Venkata Prasanth ² V.Ganesh ³

Date of Publication :7th March 2016

Abstract: The Electronic based FACTS controllers are static equipment. Its principle purpose is to control AC transmission. The parameters of FACTS are enhancement of controllability, ability of power transfer, control of line impedance, load angle and the magnitude of bus voltage. A unified power controller is to be a static device and this system device should have quick reactive transmission. This paper focuses on the issues like voltage sag and swell of power quality. DPFC is used to moderate the voltage variation and improve power quality and also used to couple the phase controllable bridges to produce current which is injected into a transmission line by using series of transformers. The UPFC is a combination of a static synchronous compensator (STATCOM) and a static synchronous series compensator (SSSC) which is coupled with common DC link. The DPFC eliminates the common dc link between the shunt and series converters and also it performs in transmission line to exchange real power between converters at the 3rd harmonic frequency. The DPFC employs several 1-phase converters like D-FACTS concepts as the series compensator. These concepts reduce the rating of the components and offer a high reliability. Since the DPFC can immediately control the active and reactive power flow and the voltage magnitude, it implies a great potential for power oscillation damping. The case study contains a DPFC located in an exceedingly single-machine infinite bus power grid with 2 parallel transmission lines that simulated in MATLAB/Simulink. The bestowed simulation results of a DPFC device wont to improve the facility quality.

Reference :

1. Ramesh. M., Laxmi,A.J. “stability of power transmission capability of hvdc system using facts controllers” computer communication and informatics (iccci), 2012 international conference on year: 2012.
2. Ross R.P.; de Souza, L.F.W.” Power quality investigation in a distribution utility”in the south of Brazil Brasil, Luciano; Harmonics and Quality of Power, 2000. Proceedings. Ninth International Conference on year 2000.
3. Nita R I. Patne, Krishna L. Thakre “Factor Affecting Characteristics Of Voltage Sag Due to Fault in the Power System” Serbian Journal Of Electrical engineering. vol. 5, no.1, May2008, pp. 171-182.
4. Enslin J. R., “Unified approach to power quality mitigation,” in Proc. IEEE Int. Symp. Industrial Electronics (ISIE ’98), vol. 1, 1998, pp. 8– 20
5. Hingorani JNG, Gyugyi L. Understanding FACTS: concepts and Technology of flexible AC transmission systems. New York: IEEE Press; 2000.
6. Yuan, S. W. H. de Haan, and B. Ferreira, “A new facts component: Distributed power flow controller (dpfc),” in Power Electronics and Applications, 2007 European Conference on, 2007, pp. 1–4