Control of VSC transmission systems under unbalanced network conditions

L. Xu, B. Andersen, P. Cartwright

Research output: Contribution to conferencePaper

21 Citations (Scopus)

Abstract

This paper presents a new control design for VSC Transmission systems with special attention to unbalanced ac network conditions. The proposed control strategy contains a main controller and an auxiliary controller. The main controller is implemented in the positive dq frame using decoupling control without involving positive/negative sequence decomposition. The auxiliary controller is implemented in the negative sequence dq frame using cross coupling control of negative sequence current. Simulation results using SIMULINK Power System Blockset (PSB) show good performance of the proposed control strategy for a 300MW, 300kV dc VSC Transmission system during both balanced conditions and unbalanced conditions which may be caused by solid single-phase to ground fault.
Original languageEnglish
Pages626-632
Number of pages7
DOIs
Publication statusPublished - Sep 2003
EventIEEE PES Transmission and Distribution Conference and Exposition - Dallas, United States
Duration: 7 Sep 200312 Sep 2003

Conference

ConferenceIEEE PES Transmission and Distribution Conference and Exposition
CountryUnited States
CityDallas
Period7/09/0312/09/03

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Keywords

  • control design
  • unbalance
  • power transmission
  • modeling
  • HVDC
  • converters
  • VSC transmission
  • unbalanced
  • network conditions

Cite this

Xu, L., Andersen, B., & Cartwright, P. (2003). Control of VSC transmission systems under unbalanced network conditions. 626-632 . Paper presented at IEEE PES Transmission and Distribution Conference and Exposition , Dallas, United States. https://doi.org/10.1109/TDC.2003.1335349