Harmonics Reduction and Power Quality Improvement by using Multilevel DPFC

  M.Sujitha,  B.Vijaya Krishna,  G.Rajesh

This paper presents on the utilization of DPFC with cascaded Multi-Level Inverter to improve the power quality in distribution systems. According to growth of electricity demand and the increased number of non-linear loads in power grids, providing a high quality electrical power should be considered. In this paper, Enhancement of power quality by using fuzzy based multilevel power flow controller (DPFC) is proposed. The DPFC is a new FACTS device, which its structure is similar to unified power flow controller (UPFC). In spite of UPFC, in DPFC the common dc-link between the shunt and series converters is eliminated and three-phase series converter is divided to several single-phase series distributed converters through the line. This eventually enables the DPFC to fully control all power system parameters. It, also, increases the reliability of the device and reduces its cost simultaneously. In recent years multi level inverters are used high power and high voltage applications. Application of Fuzzy Multilevel DPFC for reduction of Total Harmonic Distortion was presented. The simulation results show the improvement of power quality using DPFC with Fuzzy logic controller.

Keywords- Distributed power flow controller(DPFC),Multilevel inverter,Fuzzy logic controll

Unique Identification Number - IJEDR1603049
Page Number(s) - 305-312
Pubished in - Volume 4 | Issue 3 | July 2016
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  M.Sujitha,  B.Vijaya Krishna,  G.Rajesh,   "Harmonics Reduction and Power Quality Improvement by using Multilevel DPFC", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.4, Issue 3, pp.305-312, July 2016, Available at :http://www.ijedr.org/papers/IJEDR1603049.pdf