A Doubly-Fed Induction Generator Adaptive Control Strategy and Coordination Technology Compatible with Feeder Automation

The extensive connection of distributed generation (DG) with the distribution network (DN) is one of the core features of a smart grid, but in case of a large number, it may result in problems concerning the DN-DG compatibility during fault isolation and service restoration, for which no efficient a...

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Bibliographic Details
Published in:Energies (Basel) 2019-11, Vol.12 (23), p.4463
Main Authors: Tian, Peng, Li, Zetao, Hao, Zhenghang
Format: Article
Language:English
Subjects:
Automation
Communication
Coordination
Electric power systems
Electrical transmission
Failure
Feeders
Induction generators
Inspection
Integration
Shutdowns
Strategy
Substations
Synchronism
Synchronization
Technology
Topology
Turbines
Wind power
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Summary:The extensive connection of distributed generation (DG) with the distribution network (DN) is one of the core features of a smart grid, but in case of a large number, it may result in problems concerning the DN-DG compatibility during fault isolation and service restoration, for which no efficient and economic solutions have been developed. This paper proposes a doubly-fed induction generator (DFIG) adaptive control strategy (ACS) and a coordination technology to be compatible with the typical feeder automation (FA) protection logics in the ring distribution system. First of all, an ACS simulating the inertia/damping characteristics and excitation principles of synchronous generators is developed to achieve seamless switching between DFIG grid-connection/island modes, and make distant synchronization possible. Next, a technology coordinating the DFIG islands controlled by ACS and the remote tie-switches based on local inspection of synchronization conditions for closing is developed to achieve the safety grid-connection of DFIG islands in the absence of DN-DG communication. At the last, a detailed simulation scenario with a ring DN accessed by five DFIGs is used to validate the effectiveness of ACS and coordination technology compatible with FA in various faults scenes.
ISSN:1996-1073
1996-1073
DOI:10.3390/en12234463