Dispatchable Virtual Oscillator Control for Decentralized Inverter-dominated Power Systems: Analysis and Experiments
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Date
2019-05-27
Publication Type
Conference Paper
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yes
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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.
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Publication status
published
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Book title
2019 IEEE Applied Power Electronics Conference and Exposition (APEC)
Journal / series
Volume
Pages / Article No.
561 - 566
Publisher
IEEE
Event
34th Annual IEEE Applied Power Electronics Conference and Exposition (APEC 2019)
Edition / version
Methods
Software
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Date collected
Date created
Subject
Microgrid; Droop control; Nonlinear control; Synchronization; Decentralized control; Grid-forming control; Voltage source inverters
Organisational unit
09478 - Dörfler, Florian / Dörfler, Florian
Notes
Funding
691800 - Massive InteGRATion of power Electronic devices (SBFI)