A DAB Converter with Common-Point-Connected Winding Transformers Suitable for a Single-Phase 5-Level SST System
| Autor: | Myoungho Kim, Hyeok-Jin Yun, Ho Sung Kim, Hee-Je Kim, Ju-Won Baek |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Control and Optimization
Computer science 020209 energy Energy Engineering and Power Technology cascaded H-bridge 02 engineering and technology dual active bridge solid-state transformer power balancing lcsh:Technology law.invention Common point Rectifier law Control theory 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering Single phase Transformer Engineering (miscellaneous) Electronic circuit Renewable Energy Sustainability and the Environment business.industry lcsh:T 020208 electrical & electronic engineering Electrical engineering High voltage visual_art Electronic component visual_art.visual_art_medium Solid state transformer business Energy (miscellaneous) Voltage |
| Zdroj: | Energies, Vol 11, Iss 4, p 928 (2018) Energies; Volume 11; Issue 4; Pages: 928 |
| ISSN: | 1996-1073 |
| Popis: | One of the main disadvantages of the multi-level solid-state transformer (SST) system is the voltage imbalance on the output of the rectifier modules. This voltage imbalance can be caused by parameter mismatch of the active and passive components, different loads, and the floating structure of the high voltage DC-links. Some studies have been done to solve this voltage imbalance problem. A common way to avoid this imbalance is to balance the voltage of DC-links at the AC/DC conversion stage and balance the power between the modules at the DC/DC conversion stage. Most of these methods require a complex balancing controller or additional circuits. This paper proposes a novel dual active bridge (DAB) converter specialized in power balancing in a single-phase 5-level SST system. The proposed DAB converter does not require any additional balancing controllers or techniques for power balancing. The performance of the proposed DAB converter was verified by simulation and experiments using a 3 kW 5-level SST prototype system. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|