POWER CONVERSION DEVICE
Patent Information
- Application Number
- DE602016091720
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2016-11-29
- Publication Date
- 2025-03-26
- Estimated Expiration
- 2036-11-29
AI Technical Summary
In power conversion apparatuses with multiple units connected in parallel, ripple currents caused by switching operations flow between units, leading to increased power loss and heat generation due to resonance of DC capacitors, which is difficult to mitigate with existing impedance reduction methods.
The apparatus incorporates a common bus bar system with unit bus bars and magnetic material outer plates on the casing of each power conversion unit, increasing the inductance of unit bus bars to effectively suppress the inflow of ripple currents without the need for additional reactors, thereby reducing power loss and heat generation.
This configuration effectively suppresses ripple current inflow between power conversion units, reducing power loss and heat generation while maintaining a cost-effective and component-efficient design.