This paper proposes a DC link voltage control strategy for electric propulsion aircraft (EPA). This control strategy aims to achieve dynamic load management while ensuring the DC voltage stability through an adaptive V-I droop control. The steady-state voltage deviation can be improved through the droop and PI control with the introduction of the real-time current and voltage measurement at the DC link. Stability analysis based on the eigenvalue contours is used to improve the reliability of AC/DC systems for the control parameters used in the proposed control. Besides, the stability region and power boundary for the AC/DC systems are characterized, which provides a safety load curve reference for the power control. These analyses describe the safety operation margin of the proposed control strategy and provide a voltage and power reference to the design of AC/DC systems for aviation application. The simulation demonstrates the effectiveness of the proposed control strategy in terms of response time and the stability of the DC link voltage.
DC Link Voltage Control Strategy for Electric Propulsion Aircraft
2023-06-21
2380778 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Voltage controlled aircraft electric propulsion system
Europäisches Patentamt | 2024
|VOLTAGE CONTROLLED AIRCRAFT ELECTRIC PROPULSION SYSTEM
Europäisches Patentamt | 2022
|