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A UPFC with reduced DC bus capacitance for LV distribution networks with high PV penetrations

conference contribution
posted on 06.12.2017, 00:00 authored by Peter WolfsPeter Wolfs
A low voltage (LV) distribution level unified power flow controller (UPFC) is shown capable of regulating the positive sequence voltage with a network while simultaneously correcting phase unbalance voltages that can be produced by high levels of distributed photovoltaic (PV) generation. Instantaneous reactive power theory shows that DC-bus capacitor power will fluctuate at twice mains frequency during any unbalanced operation. Instantaneous power balance can be maintained by allowing the input converter to draw a small negative sequence current. This allows a hundred-fold reductionin the value of the DC bus capacitance allowing long life ceramic or polypropylene capacitors to replace electrolytic capacitors in this application.

History

Parent Title

22nd Australasian Universities Power Engineering Conference (AUPEC).

Start Page

1

End Page

7

Number of Pages

7

Start Date

01/01/2012

Finish Date

01/01/2012

ISBN-13

9781467329330

Location

Bali, Indonesia

Publisher

IEEE

Place of Publication

Piscataway, NJ

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Curtin University;

Era Eligible

Yes

Name of Conference

Australasian Universities Power Engineering Conference