NDLI: Fuzzy controlled UPQC for power quality enhancement in a DFIG based grid connected wind power system

Content Provider	IEEE Xplore Digital Library
Author	Bhavani, R. Prabha, N.R. Kanmani, C.
Copyright Year	2015
Description	Author affiliation: Dept. of EEE, Mepco Schlenk Eng. Coll., Sivakasi, India (Bhavani, R.; Prabha, N.R.; Kanmani, C.)
Abstract	Owing to fuel scarcity and environmental contamination set off by the conventional sources, renewable energy resources rule the world of power generation. Up gradation of energy production through wind farms is being encouraged now-a-days, as the wind power is dirt free, readily available renewable alternative. The integration of wind farms with power grid leads to Power Quality (PQ) issues such as voltage sag, swell, flicker, harmonics etc. Most of the industrial and commercial loads are of non-linear type which indeed the starting place of harmonics. As 70% of PQ problems are voltage sag which is one of the most severe disturbances to sensitive loads. As an outcome of the aforementioned issues both consumer sector and production sector gets affected with poor quality of power which urge PQ enhancement at its best level. Among many of custom power devices, Unified Power Quality Conditioner (UPQC) is the only device used to diminish both voltage sag and current harmonics. This paper analyzes PQ problems, voltage sag and current harmonics due to the interconnection of grid connected wind turbine and also provides PQ enhancement by introducing UPQC. To improve the performance of UPQC, a novel control strategy using Fuzzy Logic Controller (FLC) is proposed which eliminates the drawback of using fixed gains in conventional PI controller. From the simulation results, by comparing controller performance, the proposed fuzzy controlled UPQC provides effective and efficient mitigation of both voltage sag and current harmonics than the conventional PI controlled UPQC, thus making the grid connected wind power system more reliable by providing good quality of power.
Starting Page	1
Ending Page	7
File Size	400878
Page Count	7
File Format	PDF
e-ISBN	9781479970759
DOI	10.1109/ICCPCT.2015.7159410
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-19
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Doubly Fed Induction Generator (DFIG) Voltage fluctuations Power Quality (PQ) Unified Power Quality Conditioner (UPQC) Power quality Voltage sag Power system harmonics Wind power generation Harmonic analysis Wind turbines Current harmonics Voltage control
Content Type	Text
Resource Type	Article

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Fuzzy controlled UPQC for power quality enhancement in a DFIG based grid connected wind power system

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