Capacity Allocation Strategy Using Virtual Synchronous Compensator for Renewable Energy Stations Based on Fuzzy Chance Constraints

The uncertainty of high penetration of renewable energy brings challenges to the safe and stable operation of a power system; the virtual synchronous compensation (VSCOM) can shift the demand and compensate real-time discrepancy between generation and demand, and can improve the active support abili...

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Bibliographic Details
Published in:Energies (Basel) 2022-12, Vol.15 (24), p.9306
Main Authors: Xu, Zhi, Song, Pengfei, Yin, Chunya, Kang, Pengpeng, Zhai, Baoyu
Format: Article
Language:English
Subjects:
Alternative energy sources
Analysis
capacity configuration
Electric power systems
Electric utilities
Electricity distribution
Energy management systems
Energy storage
Optimization algorithms
Reactive power
renewable energy station
Renewable resources
Supply and demand
Uncertainty
virtual synchronous compensator (VSCOM)
Wind power
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Summary:The uncertainty of high penetration of renewable energy brings challenges to the safe and stable operation of a power system; the virtual synchronous compensation (VSCOM) can shift the demand and compensate real-time discrepancy between generation and demand, and can improve the active support ability for the power system. This paper proposes a novel capacity allocation strategy using VSCOM for renewable energy stations based on fuzzy constraints. Firstly, the basic framework of the VSCOM is constructed with energy storage and reactive power generator (SVG) unit. Secondly, the inertia and standby capacity requirements of high penetration of renewable energy system are modeled; on this basis, a capacity allocation model of each sub unit of the VSCOM is developed, and the investment economy and stable support needs are considered. Thirdly, the uncertainty set of wind power output is defined based on the historical data to find a decision that minimizes the worst-case expected where the worst case should be taken. Finally, the simulation results show that the proposed optimal sizing strategy can effectively take advantage of stability and economy, and the VSCOM can meet the inertia support demand of 98.6% of a high proportion of renewable energy systems.
ISSN:1996-1073
1996-1073
DOI:10.3390/en15249306