Aiming at the problems of wind and solar curtailment
reverse transmission and over-limit of feeder power caused by the access of distributed generation in high-penetration active distribution network
this paper proposes a bi-level optimal configuration method of energy storage system based on flexible interconnection of rotating power flow controller. Firstly
a bi-level framework is presented
where the objective is to minimize the payback period of RPFC and energy storage combined system in the outer planning layer to realize the optimal configuration of RPFC and energy storage location and capacity
and the objective is to minimize the annual operation cost in the inner operation layer with RPFC participating in the operation optimization as a flexible adjustment resource. Secondly
the hybrid optimization of genetic algorithm and Pulp solver is used to solve the optimal configuration model. Finally
the optimal configuration model is verified on the example of IEEE 33-node. The results verify the applicability of the proposed optimal configuration scheme of RPFC and energy storage combined system
which can effectively promote the renewable energy consumption
and improve flexibility and economy of system.
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references
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