Abstract
The three port series resonant converter (3pSRC) is a promising topology especially for grid applications and onboard chargers. It offers galvanic isolation, high efficiency and enables a power dense design via the common multiport transformer structure. Typically, power flow is controlled by means of the switching frequency and/or the relative phase between the excitation of each transformer port. However a unique solution for the optimal combination of control variables for any unique set of port voltages and powers is non trivial. This paper proposes a control loop for naturally approximating such optimal control variables. The mathematical model used for calculating the power flow between the three ports is presented and a method for finding the switching frequency that best balances zero-voltage-switching (ZVS) and high efficiency for a given operation point is given. The control approach is demonstrated with a Silicon Carbide (SiC) based prototype for an on-board charger application.
Originalsprache | Deutsch (Österreich) |
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Titel | 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL) |
Seiten | 1-7 |
Seitenumfang | 7 |
DOIs | |
Publikationsstatus | Veröffentlicht - 5 Nov. 2021 |
Veranstaltung | 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL) - Cartagena, Colombia Dauer: 2 Nov. 2021 → 5 Nov. 2021 |
Konferenz
Konferenz | 2021 IEEE 22nd Workshop on Control and Modelling of Power Electronics (COMPEL) |
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Zeitraum | 2/11/21 → 5/11/21 |
Schlagwörter
- Ports (computers)
- Power measurement
- Silicon carbide
- Switching frequency
- Resonant converters
- Transformers
- Loss measurement