URI | http://purl.tuc.gr/dl/dias/138A4B41-9DB0-411B-832D-1BB7310F36A6 | - |
Αναγνωριστικό | https://doi.org/10.1109/IECON43393.2020.9254598 | - |
Αναγνωριστικό | https://ieeexplore.ieee.org/document/9254598 | - |
Γλώσσα | en | - |
Μέγεθος | 6 pages | en |
Τίτλος | Using Kalman filter to achieve online estimation of equivalent grid impedance and high bandwidth control for LCL-filtered grid-tied inverters | en |
Δημιουργός | Cheng Yanqi | en |
Δημιουργός | Wu Weimin | en |
Δημιουργός | Chung Henry | en |
Δημιουργός | Blaabjerg Frede | en |
Δημιουργός | Koutroulis Eftychios | en |
Δημιουργός | Κουτρουλης Ευτυχιος | el |
Δημιουργός | Zhu Lixun | en |
Εκδότης | Institute of Electrical and Electronics Engineers | en |
Περίληψη | In grid-tied DC/AC inverter applications, the equivalent grid impedance often varies widely, which may limit the bandwidth of the inverter control system. This paper introduces a new method to perform the online estimation of the equivalent grid impedance with a Kalman filter by observing the grid voltage and grid current, as well as the voltage at the point of common coupling (PCC). With the estimated grid impedance, a high control bandwidth can be achieved for the grid-tied inverter through online regulation of the proportional coefficient of a current controller. A MATLAB/Simulink model of a grid-tied single-phase inverter has been setup to demonstrate the effectiveness of the proposed method. The simulation results show that the online estimated impedance is accurate enough and the inverter system can continuously maintain a high bandwidth, even under weak grid operating conditions. | en |
Τύπος | Δημοσίευση σε Συνέδριο | el |
Τύπος | Conference Publication | en |
Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
Ημερομηνία | 2022-01-03 | - |
Ημερομηνία Δημοσίευσης | 2020 | - |
Θεματική Κατηγορία | Kalman filter | en |
Θεματική Κατηγορία | Equivalent grid impedance | en |
Θεματική Κατηγορία | Online estimation | en |
Θεματική Κατηγορία | Fundamental component | en |
Θεματική Κατηγορία | LCL-filter | en |
Θεματική Κατηγορία | Grid-tied inverter | en |
Βιβλιογραφική Αναφορά | Y. Cheng, W. Wu, H. Chung, F. Blaabjerg, E. Koutroulis and L. Zhu, "Using Kalman filter to achieve online estimation of equivalent grid impedance and high bandwidth control for LCL-filtered grid-tied inverters," in IECON 2020, pp. 4247-4252. doi: 10.1109/IECON43393.2020.9254598. | en |