Ripple elimination for DC/AC DAB converter with phase shift and duty cycle control
| Autor: | D.M. Vilathgamuwa, Negareh Ghasemi, Jiang You, W. L. Malan |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Cycloconverter
Engineering business.industry 090603 Industrial Electronics cycloconverter dc/ac dual active bridge ripple current reduction resonant converter 020208 electrical & electronic engineering Ripple Electrical engineering 02 engineering and technology Multiplexing law.invention Capacitor Modulation law Duty cycle Frequency grid 0202 electrical engineering electronic engineering information engineering business Electronic circuit |
| Zdroj: | 2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC) |
| DOI: | 10.1109/spec.2016.7846204 |
| Popis: | Active ripple current reduction method is proposed for isolated DC/AC dual active bridge (DAB) converter to reduce the double grid frequency ripple in the DC current. Unlike those active methods that require extra switches to construct separate ripple reduction circuit, in this method, one or two branches of LC ripple steering circuits are used along with existing full bridge switches in a multiplexing manner. For the purpose of the ripple elimination, unsymmetrical phase shift modulation and duty cycle regulation methods are proposed and applied to both legs of the converter on the primary side of DAB converter. Also a current sharing (CS) scheme is presented to balance the current on both LC ripple steering circuits. |
| Databáze: | OpenAIRE |
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