The DOI matches its Crossref record; 33 of the 33 references it cites were found in a registry or an index.
Synchronization and power sharing for droop-controlled inverters in islanded microgrids
Open accessAbstract
Motivated by the recent and growing interest in smart grid technology, we study the operation of DC/AC inverters in an inductive microgrid. We show that a network of loads and DC/AC inverters equipped with power-frequency droop controllers can be cast as a Kuramoto model of phase-coupled oscillators. This novel description, together with results from the theory of coupled oscillators, allows us to characterize the behavior of the network of inverters and loads. Specically, we provide a necessary and sucient condition for the existence of a synchronized solution that is unique and locally exponentially stable. We present a selection of controller gains leading to a desirable sharing of power among the inverters, and specify the set of loads which can be serviced without violating given actuation constraints. Moreover, we propose a distributed integral controller based on averaging algorithms, which dynamically regulates the system frequency in the presence of a time-varying load. Remarkably, this distributed-averaging integral controller has the additional property that it preserves the power sharing properties of the primary droop controller. Our results hold without assumptions on identical line characteristics or voltage magnitudes.
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Self-citation
Cited by
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Metadata
- Authors
- Simpson-Porco, J. W., Dörfler, F., & Bullo, F.
- Venue
- Automatica
- Publisher
- Elsevier BV
- Published
- 2013-09
- Volume
- 49
- Issue
- 9
- Pages
- 2603-2611
- ISSN
- 0005-1098 (ISSN-L)
- OpenAlex
- W1990833963
- Cited by
- 832
- References
- 33
- FWCI
- 99.96
- Type
- journal article
- Language
- en
- Open access
- green
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