Modelling and control of a series static synchronous compensator using low-frequency, fixed- modulation index techniques

F. J. Chivite-Zabalza, P. Izurza, G. Calvo, M. A. Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

This paper presents the modelling and control design of a converter used in a Static Synchronous Series Compensator (SSSC) application, employing low frequency, fixed modulation index strategies. In those, the magnitude of the output waveform is directly related to the dc-bus level by a fixed relation. Consequently, the dc-bus has to be varied to obtain the desired output voltage. A large signal model for the converter is derived in the paper, subsequently linearized to obtain a small signal model, which was used to propose a control strategy. The theory is then validated experimentally on a novel Voltage Sourced Converter (VSC) configuration. A 200 kVA small-scale SSSC test bench, connected to an emulated transmission line was built for this purpose. This configuration has been used for the first time in a 47 MVAR demonstrator built for the Spanish transmission grid.

Original languageEnglish
Title of host publication7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
PublisherInstitution of Engineering and Technology
ISBN (Print)9781849198158
StatePublished - 2014
Externally publishedYes
Event7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014 - Manchester, United Kingdom
Duration: Apr 8 2014Apr 10 2014

Publication series

Name7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014

Conference

Conference7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014
Country/TerritoryUnited Kingdom
CityManchester
Period04/8/1404/10/14

Keywords

  • DC voltage-controlled static VAr compensator
  • Flexible AC transmission systems (FACTS)
  • Full wave modulation
  • Quad-series voltage-source inverters
  • Series static synchronous compensator (SSSC)

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