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Open AccessArticle

A Local Control Strategy for Distributed Energy Fluctuation Suppression Based on Soft Open Point

1
Institute of Electrical Engineering of the Chinese Academy of Sciences, Beijing 100190, China
2
School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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Author to whom correspondence should be addressed.
Energies 2020, 13(6), 1520; https://doi.org/10.3390/en13061520
Received: 17 February 2020 / Revised: 9 March 2020 / Accepted: 22 March 2020 / Published: 23 March 2020
(This article belongs to the Section Energy Economics and Policy)
This paper proposes a local control strategy applied in the soft open point (SOP) to suppress voltage fluctuation when adding a renewable energy source into the system. The mathematic model of the grid connected to SOP is established based on the characteristics of a low-voltage distribution network. Combined with the mathematic model and local voltage information, the local control strategy is proposed to optimize the active and reactive power distribution and consume the minimum apparent power of the converter. The local control strategy can effectively suppress the voltage fluctuation caused by renewable energy access, which was testified by MATLAB/Simulink simulation. In addition, the local control strategy can deduce the communication resource and increase the response speed compared to global optimization. This paper is meaningful for renewable energy source distribution and voltage balance in low-voltage distribution systems. View Full-Text
Keywords: low voltage distribution network; soft open point; minimum apparent power compensation; distributed renewable energy; voltage fluctuation suppression low voltage distribution network; soft open point; minimum apparent power compensation; distributed renewable energy; voltage fluctuation suppression
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Xinming, G.; Qunhai, H.; Tongzhen, W.; Jingyuan, Y. A Local Control Strategy for Distributed Energy Fluctuation Suppression Based on Soft Open Point. Energies 2020, 13, 1520.

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