期刊
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
卷 62, 期 11, 页码 7025-7038出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2015.2436879
关键词
Distributed control; inverters; microgrid; secondary control; voltage control
资金
- National Science Foundation [CNS-1135819]
- Natural Sciences and Engineering Research Council of Canada
- Division Of Computer and Network Systems
- Direct For Computer & Info Scie & Enginr [1135819] Funding Source: National Science Foundation
In this paper, we present new distributed controllers for secondary frequency and voltage control in islanded microgrids. Inspired by techniques from cooperative control, the proposed controllers use localized information and nearest-neighbor communication to collectively perform secondary control actions. The frequency controller rapidly regulates the microgrid frequency to its nominal value while maintaining active power sharing among the distributed generators. Tuning of the voltage controller provides a simple and intuitive tradeoff between the conflicting goals of voltage regulation and reactive power sharing. Our designs require no knowledge of the microgrid topology, impedances, or loads. The distributed architecture allows for flexibility and redundancy, eliminating the need for a central microgrid controller. We provide a voltage stability analysis and present extensive experimental results validating our designs, verifying robust performance under communication failure and during plug-and-play operation.
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