State observer for grid-voltage sensorless control of a grid-connected converter equipped with an LCL filter
School of Electrical Engineering | A4 Artikkeli konferenssijulkaisussa
Unless otherwise stated, all rights belong to the author. You may download, display and print this publication for Your own personal use. Commercial use is prohibited.
AbstractThis paper proposes a simple grid-voltage sensorless alternative to the conventional PLL synchronization for a grid-connected converter equipped with an LCL filter. The grid-voltage magnitude and angle are estimated based only on the converter current and DC-voltage measurements. Reduced number of sensors decreases costs and amount of sensor wiring. The analytically derived design is validated experimentally.
adaptive observer, grid-connected converter, grid-voltage sensorless, sensorless control, small-signal linearisation
Kukkola, Jarno & Hinkkanen, Marko. 2014. State observer for grid-voltage sensorless control of a grid-connected converter equipped with an LCL filter. 16th European Conference on Power Electronics and Applications (EPE'14-ECCE Europe). ISBN 978-1-4799-3014-2 (electronic). DOI: 10.1109/epe.2014.6910740.