A flying capacitor multilevel converter based UPFC

Xu, L. and Agelidis, V.G. (2002) A flying capacitor multilevel converter based UPFC. IEE Proceedings Electric Power Applications, 149. pp. 304-310. ISSN 1350-2352 (https://doi.org/10.1049/ip-epa:20020374)

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Abstract

The paper presents a unified power flow controller (UPFC) based on the flying capacitor (FC) multilevel voltage source converter (VSC) with phase-shifted sinusoidal PWM control. The topology allows high power handling, low power loss, low harmonic distortion and hence less filtering requirement. The series converter injects a voltage with controlled magnitude and phase to control the active/reactive power flow in a transmission line. The shunt converter absorbs/supplies active power demanded by the series one to maintain a constant DC link voltage, providing also independent reactive support to the network. A complete model in the synchronous d-q frame is presented and control circuits are described. Finally, simulation results are provided to confirm the robustness of the proposed system.

ORCID iDs

Xu, L. ORCID logoORCID: https://orcid.org/0000-0001-5633-7866 and Agelidis, V.G.;
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