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

Gab-Su Seo, Marcello Colombino, Irina Subotic, Brian Johnson, Dominic Gros, Florian Dorfler
2019 2019 IEEE Applied Power Electronics Conference and Exposition (APEC)  
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
more » ... iple 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.
doi:10.1109/apec.2019.8722028 fatcat:zri4kqtdvjghxdodphzi3sgdau