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**Harvard**

Flores, R., Gu, I. och Bollen, M. (2003) *Positive and negative sequence estimation for unbalanced voltage dips*. : Toronto

** BibTeX **

@conference{

Flores2003,

author={Flores, Rafael and Gu, Irene Y.H. and Bollen, Math},

title={Positive and negative sequence estimation for unbalanced voltage dips},

booktitle={in Proc. IEEE Power Engineering Society Summer Meeting, '03, Canada, JUL 13-17},

pages={2498-2502},

abstract={ This paper proposes the use of a complex Kalman filter for the estimation of positive and negative sequences from three phase voltages. A complex voltage is obtained by applying the alphabeta-transform followed by the dq-transform using a rotational operator. The algorithm for three phase voltages containing K harmonics is also given.
In the conventional method, estimation of positive and negative sequences is performed through two steps: the magnitude and phase-angle in each individual phase of the voltages are first estimated and the symmetrical component transformation is then applied. The proposed method offers a direct estimation of the positive and negative sequences that may reduce the estimation errors. In addition, the proposed method has a reduced computational cost since the number of state variables is reduced to 2/3 as compared to that in the conventional method. An experiment was performed on measured three phase voltage data. Results have shown that the proposed method offers a good estimation.},

publisher={Toronto},

year={2003},

}

** RefWorks **

RT Conference Proceedings

SR Electronic

ID 15111

A1 Flores, Rafael

A1 Gu, Irene Y.H.

A1 Bollen, Math

T1 Positive and negative sequence estimation for unbalanced voltage dips

YR 2003

T2 in Proc. IEEE Power Engineering Society Summer Meeting, '03, Canada, JUL 13-17

SP 2498

OP 2502

AB This paper proposes the use of a complex Kalman filter for the estimation of positive and negative sequences from three phase voltages. A complex voltage is obtained by applying the alphabeta-transform followed by the dq-transform using a rotational operator. The algorithm for three phase voltages containing K harmonics is also given.
In the conventional method, estimation of positive and negative sequences is performed through two steps: the magnitude and phase-angle in each individual phase of the voltages are first estimated and the symmetrical component transformation is then applied. The proposed method offers a direct estimation of the positive and negative sequences that may reduce the estimation errors. In addition, the proposed method has a reduced computational cost since the number of state variables is reduced to 2/3 as compared to that in the conventional method. An experiment was performed on measured three phase voltage data. Results have shown that the proposed method offers a good estimation.

PB Toronto

LA eng

DO 10.1109/PES.2003.1271035

LK http://dx.doi.org/10.1109/PES.2003.1271035

OL 30