모델 예측 제어 기반 Cascaded H-bridge 컨버터의 균일한 손실, 스위칭 주파수, 전력 분배를 위한 알고리즘An Algorithm for Even Distribution of Loss, Switching Frequency, Power of Model Predictive Control Based Cascaded H-bridge Multilevel Converter
- Authors
- 김이김; 곽상신
- Issue Date
- Oct-2015
- Publisher
- 전력전자학회
- Keywords
- Multilevel inverter; Cascaded H-bridge inverter; Model predictive control; Cell balancing method; Switching pattern balancing
- Citation
- 전력전자학회 논문지, v.20, no.5, pp 448 - 455
- Pages
- 8
- Journal Title
- 전력전자학회 논문지
- Volume
- 20
- Number
- 5
- Start Page
- 448
- End Page
- 455
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/10465
- DOI
- 10.6113/TKPE.2015.20.5.448
- ISSN
- 1229-2214
- Abstract
- A model predictive control (MPC) method without individual PWM has been recently researched to simplify and improve the control flexibility of a multilevel inverter. However, the input power of each H-bridge cell and the switching frequency of switching devices are unbalanced because of the use of a restricted switching state in the MPC method. This paper proposes a control method for balancing the switching patterns and cell power supplied from each isolated dc source of a cascaded H-bridge inverter. The supplied dc power from isolated dc sources of each H-bridge cells is balanced with the proposed cell balancing method. In addition, the switching frequency of each switching device of the CHB inverter becomes equal. A simulation and experimental results are presented with nine-level and five-level three-phase CHB inverter to validate the proposed balancing method.
A model predictive control (MPC) method without individual PWM has been recently researched to simplify and improve the control flexibility of a multilevel inverter. However, the input power of each H-bridge cell and the switching frequency of switching devices are unbalanced because of the use of a restricted switching state in the MPC method. This paper proposes a control method for balancing the switching patterns and cell power supplied from each isolated dc source of a cascaded H-bridge inverter. The supplied dc power from isolated dc sources of each H-bridge cells is balanced with the proposed cell balancing method. In addition, the switching frequency of each switching device of the CHB inverter becomes equal. A simulation and experimental results are presented with nine-level and five-level three-phase CHB inverter to validate the proposed balancing method.
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Collections - College of ICT Engineering > School of Electrical and Electronics Engineering > 1. Journal Articles
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