Power converter
The power conversion device addresses dead-time compensation issues in multi-port converters by adjusting phase differences and applying compensation, expanding the zero-voltage switching range and improving efficiency.
JP2026121032APending Publication Date: 2026-07-23PANASONIC AUTOMOTIVE SYST CO LTD
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- PANASONIC AUTOMOTIVE SYST CO LTD
- Filing Date
- 2025-01-10
- Publication Date
- 2026-07-23
Smart Images
Figure 2026121032000001_ABST
Abstract
To compensate for the effects of dead time in a power converter composed of multiple bridge circuits. [Solution] The power conversion device according to this disclosure comprises a power conversion circuit and a control device. The power conversion circuit has a plurality of bridge circuits. The control device controls the transmitted power by the power conversion circuit by adjusting a first phase difference and a second phase difference. The first phase difference is the amount of phase shift between the bridge circuits in the plurality of bridge circuits. The second phase difference is the amount of phase shift between a pair of switching legs included in the bridge circuits in the plurality of bridge circuits. The control device compensates for the error between the power command value and the transmitted power by compensating for the first phase difference and the second phase difference with a compensation amount based on whether zero voltage switching is possible for each of the plurality of switching legs of the plurality of bridge circuits.
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