This paper describes a virtual oscillator based approach to synchronize series-connected single-phase inverters. Each inverter controller includes a digital implementation of a Van der Pol oscillator. When connected in series, such inverters synchronize automatically, without the need for a central controller, communication channels, phase locked loops, or additional hardware such as powerline communication. A linearization-based analysis is used to prove system stability of the synchronized state. The approach is experimentally verified on a 180 W system consisting of three 60 W inverters.
|Original language||English (US)|
|Title of host publication||2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018|
|Publisher||Institute of Electrical and Electronics Engineers Inc.|
|State||Published - Sep 10 2018|
|Event||19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018 - Padova, Italy|
Duration: Jun 25 2018 → Jun 28 2018
|Name||2018 IEEE 19th Workshop on Control and Modeling for Power Electronics, COMPEL 2018|
|Other||19th IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2018|
|Period||6/25/18 → 6/28/18|
Bibliographical noteFunding Information:
ACKNOWLEDGEMENTS This work was supported in part by the U.S. Department of Energy (DOE) Solar Energy Technologies Office under Contract No. DE-EE0000-1583. The work of M. Sinha and S. Dhople was supported by the National Science Foundation under award no. 1509277.
© 2018 IEEE.