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

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...

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Bibliographic Details
Published inEnergies (Basel) Vol. 13; no. 6; p. 1520
Main Authors Xinming, Guo, Qunhai, Huo, Tongzhen, Wei, Jingyuan, Yin
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.03.2020
Subjects
Alternative energy sources
Communication
Computer simulation
Converters
Distributed generation
distributed renewable energy
Electric potential
Electric power distribution
Energy
Energy management
Energy sources
Energy utilization
Global optimization
Load
low voltage distribution network
minimum apparent power compensation
Optimization
Reactive power
Renewable energy sources
soft open point
Strategy
Voltage
voltage fluctuation suppression
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Summary: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.
ISSN:1996-1073
1996-1073
DOI:10.3390/en13061520