Overview of VENTURA AERO 28V Aircraft Ground Starting DC Power SupplyThe 28V Ground Power Unit(GPU)is the core equipment of the aviation ground support system,which is designed to provide stable DC power for the aircraft on the ground.It is mainly used for starting auxiliary power units(APU)

　　Overview of VENTURA AERO 28V Aircraft Ground Starting DC Power Supply

　　The 28V Ground Power Unit(GPU)is the core equipment of the aviation ground support system,which is designed to provide stable DC power for the aircraft on the ground.It is mainly used for starting auxiliary power units(APU)or main engines,testing and maintenance of avionics systems.

　　Its technological evolution is closely related to the development of aviation power systems.Modern equipment generally adopts high-frequency switching power supply technology,which has the characteristics of high power density,fast response,and strong electromagnetic compatibility.

　　Core functions and technical features

　　VENTURA Aviation Batteries

　　Power Conversion Architecture

　　Input level:Supports three-phase AC380V AC input,converted to 540V DC through PFC rectification,and power factor corrected to above 0.99.

　　Output stage:Achieve 28V/600A DC output through synchronous Buck circuit,with voltage accuracy of±0.5%.

　　Control strategy:Adopting DSP+FPGA dual core control,supporting adaptive PID algorithm and multi module parallel current sharing(uneven current degree<3%).

　　Environmental adaptability

　　The working temperature range covers-40℃~+71℃,and a mixed cooling scheme of liquid cooling and air cooling is adopted to ensure full power operation.

　　Compliant with environmental testing standards for aviation electronic equipment such as DO-160G and GJB181A-2003.

　　Typical application scenarios

　　In the civil aviation field,it replaces APU power supply to reduce fuel consumption,supports pre flight inspections(such as cabin lighting,electric slide power supply),and low-noise nighttime operations.

　　Military field:Provide precise 28V DC power supply for ground radar and weapon mount testing of J-20 and other fighter jets.

　　Emergency support:Equipped with a battery emergency busbar,which can switch to emergency power supply mode in case of ground power failure.

　　Equipment type and configuration

　　VENTURA AERO

　　Fixed type:Installed in the electrical room of the hangar,powered by the service well system.

　　Mobile:including trailer type(such as 7-HK-182 power vehicle)and vehicle mounted type,equipped with boost device and 5-meter output cable,suitable for different apron needs.