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System deployment and decentralized control of islanded AC microgrids without communication facility
This paper proposes a novel system deployment principle for master/slave type islanded alternating current (AC) microgrids, with which decentralized control can be achieved without communications. The net power of a microgrid, including active and reactive power, is metered and compensated locally and independently by its units. This can benefit a microgrid regarding system expandability, flexibility, and plug-and-play. The proposed strategy is demonstrated in a typical islanded AC microgrid with diesel generators, renewable generation, and hybrid storage. A diesel generator set with constant speed governor and static exciter runs to build up and dominate the main AC bus. An ultra-capacitor unit suppresses fast-varying power fluctuations, and the battery shares part of the slow-varying power component. The diesel generator set only provides slow-varying power within a lower limit, which can avoid dramatic accelerations and decelerations and low load-rate operation. Finally, simulations on MATLAB/Simulink are carried out to verify the proposed strategy in typical scenarios.
System deployment and decentralized control of islanded AC microgrids without communication facility
This paper proposes a novel system deployment principle for master/slave type islanded alternating current (AC) microgrids, with which decentralized control can be achieved without communications. The net power of a microgrid, including active and reactive power, is metered and compensated locally and independently by its units. This can benefit a microgrid regarding system expandability, flexibility, and plug-and-play. The proposed strategy is demonstrated in a typical islanded AC microgrid with diesel generators, renewable generation, and hybrid storage. A diesel generator set with constant speed governor and static exciter runs to build up and dominate the main AC bus. An ultra-capacitor unit suppresses fast-varying power fluctuations, and the battery shares part of the slow-varying power component. The diesel generator set only provides slow-varying power within a lower limit, which can avoid dramatic accelerations and decelerations and low load-rate operation. Finally, simulations on MATLAB/Simulink are carried out to verify the proposed strategy in typical scenarios.
System deployment and decentralized control of islanded AC microgrids without communication facility
Baoquan Liu (author)
2019
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
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