What is it about?
This study proposes the convex model for active distribution network expansion planning integrating dispersed energy storage systems (DESS). Four active management schemes, distributed generation (DG) curtailment, demand side management, on-load tap changer tap adjustment and reactive power compensation are considered. The optimization of DESS for peak shaving and operation cost decreasing is also integrated. The expansion model allows alternatives to be considered for new wiring, new substation, substation expansion and DG installation. The distribution network expansion planning (DNEP) problem is a mixed integer non-linear programming problem. Active management and uncertainties especially with the DG integration make the DNEP problem much complex. To find the suitable algorithm, this study converts the DNEP problem to a second-order cone programming model through distflow equations and constraints relaxation. A modified 50-bus application example is used to verify the proposed model.
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Why is it important?
This paper (i) proposes the SOCP model for ADNEP considering practical operation constraints and DESS at the first time and applying to the application example; (ii) raises the consciousness that the active distribution network planning should be accompanied closely with the system operation.
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This page is a summary of: Active distribution network expansion planning integrating dispersed energy storage systems, IET Generation Transmission & Distribution, February 2016, the Institution of Engineering and Technology (the IET),
DOI: 10.1049/iet-gtd.2015.0411.
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