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 language | American English |
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Pages | 561-566 |
Number of pages | 6 |
DOIs | |
State | Published - 24 May 2019 |
Event | 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States Duration: 17 Mar 2019 → 21 Mar 2019 |
Conference
Conference | 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 |
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Country/Territory | United States |
City | Anaheim |
Period | 17/03/19 → 21/03/19 |
Bibliographical note
See NREL/CP-5D00-72774 for preprintNREL Publication Number
- NREL/CP-5D00-74307
Keywords
- Decentralized control
- Droop control
- Grid-forming control
- Microgrid
- Nonlinear control
- Synchronization
- Voltage source inverters