Probabilistic Risk Evaluation of Microgrids Considering Stability and Reliability

被引:7
作者
Song, Yubo [1 ]
Sahoo, Subham [1 ]
Yang, Yongheng [2 ]
Blaabjerg, Frede [1 ]
机构
[1] Aalborg Univ, Dept Energy, DK-9220 Aalborg, Denmark
[2] Zhejiang Univ, Coll Elect Engn, Hangzhou 310027, Peoples R China
基金
中国国家自然科学基金;
关键词
AC microgrids; power electronic systems; reliability; risk evaluation; stability; POWER CONVERTERS; SYSTEMS;
D O I
10.1109/TPEL.2023.3278037
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Microgrids are being developed with higher penetration of renewable energy sources and utilization of power electronics. The functionality of microgrids is normally measured by two indices, stability and reliability, which are highly influenced by system configuration and generation/load mission profiles. Although system-level modeling approaches have been proposed to evaluate both the said indices for microgrids, they are still considered independently due to the mismatch in their timescales. To this end, it limits the derivation of a comprehensive risk framework to exploit the interdependencies between stability and reliability. Hence, this article addresses this gap for the first time in the realm of microgrids by proposing a probabilistic risk framework by considering stability and reliability simultaneously. Long-timescale reliability are basically decomposed into shorter timescale events, whereas stability is treated as probabilistic events to be integrated into the risk evaluation. This framework can quantify the operation risk of microgrids, thereby providing a more intuitive approach to the design of microgrids. To validate the ruggedness of the proposed framework, system stability and reliability are assessed and interpreted under experimental conditions.
引用
收藏
页码:10302 / 10312
页数:11
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