A voltage-sensorless controller for grid converters

Jarno Kukkola*, Mikko Routimo, Marko Hinkkanen, Lennart Harnefors

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)
163 Downloads (Pure)


Grid converters need information about the point-of-common-coupling voltage for their control. The voltage is typically measured for current and ac-bus voltage control, and for synchronization. In order to increase reliability by decreasing dependence on this measurement, this paper proposes a multifunctional grid-voltage sensorless controller that can operate either in current- or voltage-control mode. The control system is designed to be robust against variations in grid strength, covering strong and very weak grid conditions. The controller is experimentally tested and its robustness is verified in these conditions. The results show that sensorless ac-bus voltage control can provide grid voltage support.
Original languageEnglish
Title of host publication2021 IEEE PES Innovative Smart Grid Technologies Europe (ISGT-Europe)
Number of pages6
ISBN (Electronic)978-1-6654-4875-8
ISBN (Print)978-1-6654-4876-5
Publication statusPublished - 2021
MoE publication typeA4 Article in a conference publication
EventIEEE PES Europe Conference on Innovative Smart Grid Technologies - Aalto University, Espoo, Finland
Duration: 18 Oct 202121 Oct 2021


ConferenceIEEE PES Europe Conference on Innovative Smart Grid Technologies
Abbreviated titleISGT-Europe
Internet address


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