An aircraft ground power unit is a specialized ground support equipment designed to provide stable power supply to aircraft, playing a crucial role in the aviation sector. It is a mobile power device capable of supplying electricity for various needs during ground operations, such as maintenance, testing, charging, and emergency power supply. Based on the type of output power, aircraft ground power units can be categorized into AC power units, DC power units, and AC/DC dual-purpose units. Among these, AC power units are commonly used for commercial airliners, while DC power is more frequently employed for business jets and certain small aircraft.

Working Principle:

By connecting to a ground power source (such as the grid) or its own generator/battery pack, it obtains electrical energy.

Utilizing devices like inverters or converters, it transforms the acquired electrical energy into the AC or DC power required by the aircraft.

The converted electrical energy is supplied to the aircraft through output interfaces, ensuring compatibility and connection with the aircraft's power system. The power output is monitored and managed via a control system to ensure stable parameters such as output voltage, current, and frequency, meeting the operational requirements of the aircraft.

Performance Features:
1. Utilizes high-frequency SPWM and soft-start full-bridge conversion technology, efficiency over 85%.
2. Excellent output stability.
3. Equipped with current limiting function, adaptable to impact loads such as motors and rectifier types.
4. Comprehensive protection functions to ensure normal operation of the power equipment and safety of the load.
5. Vibration damping devices installed to prevent vibration and shock.
6. Modular design of the power unit with self-diagnostic functionality for convenient and quick maintenance.
7. Triple-protection treatment of the power unit to withstand various harsh climatic conditions.
8. LCD display for voltage and current with digital readout, facilitating easy start and stop operations.