DC 배전용 반도체 변압기를 위한 직렬 연결된 플라잉 커패시터 멀티-레벨 정류기의 모델 예측 제어 방법A Model Predictive Control Method of a Cascaded Flying Capacitor Multi-level Rectifier for Solid State Transformer for DC Distribution System
- Other Titles
- A Model Predictive Control Method of a Cascaded Flying Capacitor Multi-level Rectifier for Solid State Transformer for DC Distribution System
- Authors
- 김시환; 장영혁; 김준성; 김래영
- Issue Date
- Oct-2018
- Publisher
- 전력전자학회
- Keywords
- DC distribution system; Finite control set-model predictive control; Flying capacitor rectifier; Multi-level converter; Solid state transformer
- Citation
- 전력전자학회 논문지, v.23, no.5, pp.359 - 365
- Indexed
- KCI
- Journal Title
- 전력전자학회 논문지
- Volume
- 23
- Number
- 5
- Start Page
- 359
- End Page
- 365
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/149202
- DOI
- 10.6113/TKPE.2018.23.5.359
- ISSN
- 1229-2214
- Abstract
- This study introduces a model predictive control method for controlling a cascaded flying capacitor multilevel rectifier used as an AC-DC rectifier of a solid-state transformer for DC distribution systems. The proposed method reduces the number of states that need to be considered in model predictive control by separately controlling input current, output DC link voltage, and flying capacitor voltage. Thus, calculation time is shortened to facilitate the level expansion of the cascaded flying capacitor multilevel rectifier. The selection of weighting factors did not present difficulties because the weighting factors in the cost function of the conventional model predictive control are not used. The effectiveness of the proposed method is verified through computer simulation using powersim and experiment.
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