Excitation management for direct current supply
Patent Information
- Application Number
- DE602021023413
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2020-02-12
- Filing Date
- 2021-02-12
- Publication Date
- 2024-12-18
- Estimated Expiration
- 2041-02-12
AI Technical Summary
Aircraft DC power supplies require two voltage regulation loops, one on the DC side and one on the AC side, to manage load-off transients, which complicates the control system and increases complexity.
A direct current power supply with a controller that calculates the maximum line-to-line voltage from phase voltages and uses this calculation to operate an exciter winding driver with an oscillating signal, reducing the need for multiple sensing loops by maintaining the quadratic mean of the direct current link capacitor voltage during load-off conditions.
This approach simplifies the control system by allowing single-loop control during load-off transients, preventing under-excitation and maintaining voltage stability with reduced sensing requirements.