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.

Conference

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

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Controllers
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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
Xu, L. ; Andersen, B. ; Cartwright, P. / Control of VSC transmission systems under unbalanced network conditions. Paper presented at IEEE PES Transmission and Distribution Conference and Exposition , Dallas, United States.7 p.
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Xu, L, Andersen, B & Cartwright, P 2003, 'Control of VSC transmission systems under unbalanced network conditions' Paper presented at IEEE PES Transmission and Distribution Conference and Exposition , Dallas, United States, 7/09/03 - 12/09/03, pp. 626-632 . https://doi.org/10.1109/TDC.2003.1335349

Control of VSC transmission systems under unbalanced network conditions. / Xu, L.; Andersen, B.; Cartwright, P.

2003. 626-632 Paper presented at IEEE PES Transmission and Distribution Conference and Exposition , Dallas, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Control of VSC transmission systems under unbalanced network conditions

AU - Xu, L.

AU - Andersen, B.

AU - Cartwright, P.

PY - 2003/9

Y1 - 2003/9

N2 - 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.

AB - 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.

KW - control design

KW - unbalance

KW - power transmission

KW - modeling

KW - HVDC

KW - converters

KW - VSC transmission

KW - unbalanced

KW - network conditions

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