山东电力技术2025，Vol.52Issue(6)：10-21,51,13.DOI:10.20097/j.cnki.issn1007-9904.2025.06.002
计及变流器频率支撑与容量约束的孤岛微电网多源协同调度方法
Multi-source Collaborative Scheduling Method for Islanded Microgrids Considering Converter Frequency Support and Capacity Constraints
摘要
Abstract
In response to the challenge posed by the high proportion of new energy intensity uncertainty within island microgrids,which can lead to significant frequency fluctuations and exceed the boundary threshold in extreme cases,thereby triggering the protective action of power grid devices and endangering the security and stability of the power grid,we propose a multi-source collaborative scheduling method for islanded microgrids.This method considers converter frequency support and capacity constraints.Firstly,a dynamic frequency response model for the islanded microgrid with multi-source participation(wind,photovoltaic,hydro,and storage)in dynamic frequency support is established.This model includes the system's multi-source power-frequency time-domain expression and dynamic frequency safety constraints.Secondly,the relationship between the capacity limitations of converter and the demands for active frequency modulation and reactive voltage regulation is discussed.A dynamic frequency support strategy based on the remaining available capacity of inverters is proposed.With dual optimization objectives of system operational economy and frequency-voltage security,and considering constraints such as dynamic frequency and voltage safety,an optimal dispatch method for islanded microgrids is proposed,incorporating coordinated frequency and voltage regulation by wind,photovoltaic,hydro,and storage.Finally,simulation results based on an improved IEEE 33-node system validate the effectiveness of the proposed method in enhancing the frequency and voltage stability of islanded microgrids under large disturbances and uncertainties.关键词
孤岛微电网/风光水储/频率支撑/电压安全/优化调度Key words
isolated microgrid/wind,photovoltaic,hydro and storage/frequency support/voltage safety/optimal dispatch分类
动力与电气工程引用本文复制引用
邓美玲,江通财,白振毅,林健,陈永进,吴子龙..计及变流器频率支撑与容量约束的孤岛微电网多源协同调度方法[J].山东电力技术,2025,52(6):10-21,51,13.基金项目
中国南方电网有限责任公司科技项目(GDKJXM20230364). Science and Technology Foundation of China Southern Power Grid Company Limited(GDKJXM20230364). （GDKJXM20230364）
