Ιδρυματικό Αποθετήριο [SANDBOX]
Πολυτεχνείο Κρήτης
EN  |  EL

Αναζήτηση

Πλοήγηση

Ο Χώρος μου

A new unbalanced voltage compensation method based on Hopf oscillator for three-phase DC/AC inverters with unbalanced loads

Luo Siyi, Wu Weimin, Koutroulis Eftychios, Chung Henry Shu-Hung, Blaabjerg, Frede, 1963-

Πλήρης Εγγραφή


URI: http://purl.tuc.gr/dl/dias/22AFEE23-91D3-4B4B-8BCF-AB19AC26C56A
Έτος 2022
Τύπος Δημοσίευση σε Περιοδικό με Κριτές
Άδεια Χρήσης
Λεπτομέρειες
Βιβλιογραφική Αναφορά S. Luo, W. Wu, E. Koutroulis, H. S. -H. Chung and F. Blaabjerg, "A new unbalanced voltage compensation method based on Hopf oscillator for three-phase DC/AC inverters with unbalanced loads," IEEE Trans. Smart Grid, vol. 13, no. 6, pp. 4245-4255, Nov. 2022, doi: 10.1109/TSG.2022.3184911. https://doi.org/10.1109/TSG.2022.3184911
Εμφανίζεται στις Συλλογές

Περίληψη

In islanded microgrids, distributed generators (DGs) are employed as distributed compensators to improve the power quality on the load side. Due to the access of unbalanced loads, the low-voltage microgrid will naturally exhibit three-phase unbalance, which may cause additional power losses and deteriorate power quality. Therefore, this paper proposes a novel unbalanced-voltage compensation control method based on the Hopf oscillator, which introduces the negative-sequence voltage and current into the traditional Hopf oscillator to achieve the negative sequence voltage droop characteristics. It can not only realize the negative sequence droop control of a single inverter, but it is also capable to support the reactive power automatic distribution between multi-parallel grid-forming inverters. Compared with the traditional unbalanced voltage compensation method based on filtered negative sequence reactive power, the proposed unbalanced voltage compensation method can slightly improve the dynamic response. Experimental results verify the effectiveness of the proposed control strategy.

Υπηρεσίες

Στατιστικά