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Compensation of Power Fluctuations of PV Generation System by SMES Based on Interleaving Technique

  • Kim, Seung-Tak ;
  • Park, Jung-Wook
  • Received : 2014.11.19
  • Accepted : 2015.06.29
  • Published : 2015.09.01

Abstract

This paper proposes the enhanced application of superconducting magnetic energy storage (SMES) for the effective compensation of power fluctuations based on the interleaving technique. With increases in demand for renewable energy based photovoltaic (PV) generation system, the output power fluctuations from PV generation system due to sudden changes in environmental conditions can cause serious problems such as grid voltage and frequency variations. To solve this problem, the SMES system is applied with its superior characteristics with respect to high power density, fast response for charge and discharge operations, system efficiency, etc. In particular, the compensation capability is effectively improved by the proposed interleaving technique based on its parallel structure. The dynamic performance of the system designed using the proposed method is evaluated with several case studies through time-domain simulations.

Keywords

Distributed power generation;Interleaving technique;Renewable energy system;superconducting magnetic energy storage

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