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The development of DC distribution systems(DSs) not only provides more efficient way for the access of DC generation and load,but also makes DSs form an AC-DC hybrid topology.In order to adapt to this change,a uniform steady state power flow model is established by considering the possible hybrid structures in AC-DC DSs.In order to ensure the characteristics of network radiation,a necessary and sufficient constraint condition based on the active current equation is established,and a dynamic reconfiguration model of the AC-DC hybrid distribution network with distributed power generation is proposed.This model takes the minimum sum of power purchase cost,network loss cost and distributed power generation cost as the objective function,which can be transformed into a mixed integer linear programming problem(MILP) based on Taylor series and piecewise linearization that can be effectively solved.Finally,the effectiveness of the proposed model is verified by an improved 50-bus example containing different types of distributed power generation.
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Basic Information:
DOI：10.20040/j.cnki.1000-7709.2021.02.045
China Classification Code:TM73
Citation Information:
[1]SUN Xu,QIU Xiao-yan,ZHANG Zhi-rong ,et al.Dynamic Reconfiguration Model of AC-DC Hybrid Distribution Network with Distributed Power Generation[J].Water Resources and Power,2021,39(02):190-194.DOI:10.20040/j.cnki.1000-7709.2021.02.045.
Fund Information:
四川省科技厅重点研发项目(2017FZ0103)
2021-02-25
2021-02-25