Dispatchable Virtual Oscillator Control for Decentralized Inverter-dominated Power Systems: Analysis and Experiments

Gabsu Seo, Irina Subotic, Brian Johnson, Dominic Gross, Florian Dorfler, Marcello Colombino

Research output: Contribution to conferencePaperpeer-review

112 Scopus Citations

Abstract

This paper presents an analysis and experimental validation of dispatchable virtual oscillator control (dVOC) for inverter-dominated power systems. dVOC is a promising decentralized control strategy that requires only local measurements to induce grid-forming behavior with programmable droop characteristics. It is dispatchable-i.e., the inverters can vary their power generation via user-defined power set-points and guarantees strong stability. To verify its feasibility, a testbed comprising multiple dVOC-programmed inverters with transmission line impedances is designed. With an embedded synchronization strategy, the dVOC inverters are capable of dynamic synchronization, black start operation, and transient grid voltage regulation with dynamic load sharing, and real-time-programmable droop characteristics for backward compatibility. All these features are experimentally verified.

Original languageAmerican English
Pages561-566
Number of pages6
DOIs
StatePublished - 24 May 2019
Event34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States
Duration: 17 Mar 201921 Mar 2019

Conference

Conference34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/TerritoryUnited States
CityAnaheim
Period17/03/1921/03/19

Bibliographical note

See NREL/CP-5D00-72774 for preprint

NREL Publication Number

  • NREL/CP-5D00-74307

Keywords

  • Decentralized control
  • Droop control
  • Grid-forming control
  • Microgrid
  • Nonlinear control
  • Synchronization
  • Voltage source inverters

Fingerprint

Dive into the research topics of 'Dispatchable Virtual Oscillator Control for Decentralized Inverter-dominated Power Systems: Analysis and Experiments'. Together they form a unique fingerprint.

Cite this