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Voltage oscillations in power distribution networks in the presence of DFIGs and induction motor loads

conference contribution
posted on 2013-01-01, 00:00 authored by Naruttam Kumar Roy, H Pota, S Sayeef
This paper investigates the oscillatory behavior of power distribution systems in the presence of distributed generation. The analysis is carried out over a distribution test system with two doubly fed induction type wind generators and different types of induction motor loads. The system is linearized by the perturbation method. Eigenvalues are calculated to see the modal interaction within the system. The study indicates that interactions between closely placed converter controllers and induction motor loads significantly influence the damping of the oscillatory modes of the system. The critical modes have a frequency of oscillation between the electromechanical and subsynchronous oscillations of power systems. Time-domain simulations are carried out to verify the validity of the modal analysis and to provide a physical feel for the types of oscillations that occur in distribution systems. Finally, significant parameters of the system that affect the damping and frequency of the oscillation are identified.

History

Event

IEEE Grenoble PowerTech. Conference (2013 : Grenoble, France)

Pagination

1 - 5

Publisher

IEEE

Location

Grenoble, France

Place of publication

Piscataway, N.J.

Start date

2013-06-16

End date

2013-06-20

ISBN-13

9781467356671

Language

eng

Publication classification

E1.1 Full written paper - refereed

Copyright notice

2013, IEEE

Title of proceedings

PowerTech 2013 : Towards carbon free society through smarter grids : Proceedings of the 2013 IEEE Power & Energy Society in Europe

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