VSC transmission operating under unbalanced AC conditions - analysis and control design

L. Xu; B. Andersen; P. Cartwright

doi:10.1109/TPWRD.2004.835032

VSC transmission operating under unbalanced AC conditions - analysis and control design

L. Xu, B. Andersen, P. Cartwright

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

254 Citations (Scopus)

Abstract

This work presents an analysis and a new control design of a voltage-source converter (VSC) transmission system operating under unbalanced network conditions. The system is analyzed in the positive and negative synchronous reference frames. The proposed control strategy contains a main controller and an auxiliary controller. The main controller is implemented in the positive d-q frame using decoupling control without involving positive/negative-sequence decomposition. The auxiliary controller is implemented in the negative-sequence d-q frame using cross-coupling control of negative-sequence current. Simulation results using the SIMULINK power system blockset show good performance of the proposed control strategy for a 300-MW 300-kV dc VSC transmission system during both balanced conditions and unbalanced conditions as may be caused by a solid single-phase-to-ground fault.

Original language	English
Pages (from-to)	427-434
Number of pages	7
Journal	IEEE Transactions on Power Delivery
Volume	20
Issue number	1
DOIs	https://doi.org/10.1109/TPWRD.2004.835032
Publication status	Published - Jan 2005

Keywords

control design
converters
modeling
power transmission
unbalance

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10.1109/TPWRD.2004.835032

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title = "VSC transmission operating under unbalanced AC conditions - analysis and control design",

abstract = "This work presents an analysis and a new control design of a voltage-source converter (VSC) transmission system operating under unbalanced network conditions. The system is analyzed in the positive and negative synchronous reference frames. The proposed control strategy contains a main controller and an auxiliary controller. The main controller is implemented in the positive d-q frame using decoupling control without involving positive/negative-sequence decomposition. The auxiliary controller is implemented in the negative-sequence d-q frame using cross-coupling control of negative-sequence current. Simulation results using the SIMULINK power system blockset show good performance of the proposed control strategy for a 300-MW 300-kV dc VSC transmission system during both balanced conditions and unbalanced conditions as may be caused by a solid single-phase-to-ground fault.",

keywords = "control design, converters, modeling, power transmission, unbalance",

author = "L. Xu and B. Andersen and P. Cartwright",

year = "2005",

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T1 - VSC transmission operating under unbalanced AC conditions - analysis and control design

AU - Xu, L.

AU - Andersen, B.

AU - Cartwright, P.

PY - 2005/1

Y1 - 2005/1

N2 - This work presents an analysis and a new control design of a voltage-source converter (VSC) transmission system operating under unbalanced network conditions. The system is analyzed in the positive and negative synchronous reference frames. The proposed control strategy contains a main controller and an auxiliary controller. The main controller is implemented in the positive d-q frame using decoupling control without involving positive/negative-sequence decomposition. The auxiliary controller is implemented in the negative-sequence d-q frame using cross-coupling control of negative-sequence current. Simulation results using the SIMULINK power system blockset show good performance of the proposed control strategy for a 300-MW 300-kV dc VSC transmission system during both balanced conditions and unbalanced conditions as may be caused by a solid single-phase-to-ground fault.

AB - This work presents an analysis and a new control design of a voltage-source converter (VSC) transmission system operating under unbalanced network conditions. The system is analyzed in the positive and negative synchronous reference frames. The proposed control strategy contains a main controller and an auxiliary controller. The main controller is implemented in the positive d-q frame using decoupling control without involving positive/negative-sequence decomposition. The auxiliary controller is implemented in the negative-sequence d-q frame using cross-coupling control of negative-sequence current. Simulation results using the SIMULINK power system blockset show good performance of the proposed control strategy for a 300-MW 300-kV dc VSC transmission system during both balanced conditions and unbalanced conditions as may be caused by a solid single-phase-to-ground fault.

KW - control design

KW - converters

KW - modeling

KW - power transmission

KW - unbalance

UR - http://ieeexplore.ieee.org/iel5/61/30033/01375123.pdf?tp=&arnumber=1375123&isnumber=30033

UR - http://dx.doi.org/10.1109/TPWRD.2004.835032

U2 - 10.1109/TPWRD.2004.835032

DO - 10.1109/TPWRD.2004.835032

M3 - Article

SN - 0885-8977

VL - 20

SP - 427

EP - 434

JO - IEEE Transactions on Power Delivery

JF - IEEE Transactions on Power Delivery

IS - 1

ER -

VSC transmission operating under unbalanced AC conditions - analysis and control design

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