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Compensation of Harmonics in Residential Distribution System Using Virtual Impedance


Affiliations
1 EEE Department, Sri Krishna College of Engineering & Technology, India
2 Bio-Medical Engineering Department, Vellalar College of Engg & Tech, India
 

This paper presents the modelling of nonlinear load used in domestic and small scale industrial distribution system. Proportional integral controller is used for the current control, fuzzy based MPPT is used for the variation of power from PV due to the change in atmospheric condition. Harmonics are compensated by the virtual impedance implementation. However due to increasing implementation of multiple distributed generation in residential areas, DG grid interfaced converters are used to improve the power quality. Harmonic analysis of the distribution system is used to study the behavior of equipment connected in the non-sinusoidal system environment for designing and optimal location of filters. THD is used as harmonics index to study the effect of these nonlinear loads at utility. In depth analysis and comparison of different compensation schemes based on the virtual harmonic damping impedance concept are carried out. The effect of harmonics and the compensations are verified by the analysis and simulation by MATLAB/Simuink.

Keywords

Photo Voltaic, Distributed Generation, Maximum Power Point Tracking, Total Harmonic Distortion, Clean Development Mechanism, Point of Common Coupling.
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  • Compensation of Harmonics in Residential Distribution System Using Virtual Impedance

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Authors

R. Kavin
EEE Department, Sri Krishna College of Engineering & Technology, India
S. Anbumani
Bio-Medical Engineering Department, Vellalar College of Engg & Tech, India

Abstract


This paper presents the modelling of nonlinear load used in domestic and small scale industrial distribution system. Proportional integral controller is used for the current control, fuzzy based MPPT is used for the variation of power from PV due to the change in atmospheric condition. Harmonics are compensated by the virtual impedance implementation. However due to increasing implementation of multiple distributed generation in residential areas, DG grid interfaced converters are used to improve the power quality. Harmonic analysis of the distribution system is used to study the behavior of equipment connected in the non-sinusoidal system environment for designing and optimal location of filters. THD is used as harmonics index to study the effect of these nonlinear loads at utility. In depth analysis and comparison of different compensation schemes based on the virtual harmonic damping impedance concept are carried out. The effect of harmonics and the compensations are verified by the analysis and simulation by MATLAB/Simuink.

Keywords


Photo Voltaic, Distributed Generation, Maximum Power Point Tracking, Total Harmonic Distortion, Clean Development Mechanism, Point of Common Coupling.

References