Optimal Scheduling of AC/DC Hybrid Microgrid Considering Interlinking Converter

Zhan-kai LI , Yue LUAN , Fu-min ZHANG , Zhao-tang XU

Science Technology and Engineering ›› 2024, Vol. 24 ›› Issue (34) : 14690 -14698.

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Science Technology and Engineering ›› 2024, Vol. 24 ›› Issue (34) : 14690-14698 DOI: 10.12404/j.issn.1671-1815.2402100
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Optimal Scheduling of AC/DC Hybrid Microgrid Considering Interlinking Converter
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Abstract

In response to the hybrid topology of AC and DC in microgrid, a new model for optimizing the scheduling of AC/DC hybrid microgrid considering interlinking converter was established by comprehensively considering control variables such as distributed power sources, interlinking converters, and energy storage devices, with the objective function of minimizing the operating cost of microgrids. Through the coordinated scheduling of interlinking converter, on the one hand, voltage stability and power balance of the microgrid are achieved, and on the other hand, the cost of purchasing electricity from the higher-level power grid is significantly reduced. Due to the high computational complexity of the proposed model, which is a mixed integer non convex problem, the original model is transformed into a linearization problem that can be effectively solved. Finally, the effectiveness and speed of the proposed model are verified through the IEEE33 node system.

Keywords

AC/DC hybrid microgrid / interlinking converter / distributed generation / energy storage system / economic dispatch

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Zhan-kai LI, Yue LUAN, Fu-min ZHANG, Zhao-tang XU. Optimal Scheduling of AC/DC Hybrid Microgrid Considering Interlinking Converter. Science Technology and Engineering, 2024, 24(34): 14690-14698 DOI:10.12404/j.issn.1671-1815.2402100

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