TY - GEN
T1 - Unbalanced STATCOM analysis in the harmonic domain
AU - Collins, Cristopher D.
AU - Wood, Alan R.
AU - Watson, Naville R.
PY - 2004
Y1 - 2004
N2 - System imbalance plays an important role in the harmonic performance of switching devices, and it is important to account for these sequence transfers in computational models. This paper considers these sequence transfers and then outlines a non-linear harmonic domain approach to unbalanced PWM STATCOM modelling. The proposed model is validated against time domain simulation and used to consider a STATCOM under unbalanced conditions. This investigation concludes that the impact of system imbalance on STATCOM performance is two-fold. The imbalance generates non-characteristic harmonics, which in turn propagate through the control system causing a secondary effect on characteristic harmonic generation. The magnitude of this secondary effect is dependent on the control system, highlighting the necessity of including an accurate control scheme representation. In addition this unbalanced propagation through the controller decreases system linearity, making it necessary to recalculate the Jacobian at each iteration.
AB - System imbalance plays an important role in the harmonic performance of switching devices, and it is important to account for these sequence transfers in computational models. This paper considers these sequence transfers and then outlines a non-linear harmonic domain approach to unbalanced PWM STATCOM modelling. The proposed model is validated against time domain simulation and used to consider a STATCOM under unbalanced conditions. This investigation concludes that the impact of system imbalance on STATCOM performance is two-fold. The imbalance generates non-characteristic harmonics, which in turn propagate through the control system causing a secondary effect on characteristic harmonic generation. The magnitude of this secondary effect is dependent on the control system, highlighting the necessity of including an accurate control scheme representation. In addition this unbalanced propagation through the controller decreases system linearity, making it necessary to recalculate the Jacobian at each iteration.
UR - https://www.scopus.com/pages/publications/19644392420
M3 - Conference proceedings published in a book
AN - SCOPUS:19644392420
SN - 0780387465
T3 - 2004 11th International Conference on Harmonics and Quality of Power
SP - 232
EP - 237
BT - 2004 11th International Conference on Harmonics and Quality of Power
T2 - 2004 11th International Conference on Harmonics and Quality of Power
Y2 - 12 September 2004 through 15 September 2004
ER -