A high-power high-stability step-up power supply system

Abstract

The invention relates to a high-power high-stability boost power supply system. A voltage is initially boosted to a satellite load voltage and then is transmitted, and after the boost power supply system is adopted, the requirements of simultaneously supplying power for multiple load satellite loads can be met, the battery consumption of a load satellite during flight of an aircraft can be saved,the design difficulty of a load satellite storage battery is lowered, and the power supply efficiency of the load satellite power supply system is improved. By the adoption of the boost power supply system, the problem that the aircraft is insufficient in long-distance high-power supply capacity for the load satellite is solved, a long-distance power supply cable is simple in design and small in cable loss, and the power supply efficiency is improved; and meanwhile, the bus voltage can be stabilized when a high-power supply is executed or when a load is suddenly changed, so that the design ofa load secondary power supply module is easier. A boost power partial component in a boosting circuit is replaced, and the threshold value of a comparator is changed, so that the requirements of various bus voltages of the satellite can be met, the expandability is high, and a space is expanded for an aircraft boosting power supply system.

Description

technical field [0001] The invention relates to a high-power and high-stability step-up power supply system, which belongs to the field of aircraft electrical system design. Background technique [0002] The electrical power supply system of the launch vehicle is the basis of all electrical equipment in the system, and it is also the key to the reliability of the overall quality of the system. With the continuous development and progress of the design of the launch vehicle's electrical system, the circuit is becoming more and more complex, and the requirements for the power output of the power supply and the characteristics of the busbar are getting higher and higher. The electrical power supply system usually uses a battery and a secondary power supply module. The stored chemical energy is converted into electrical energy by the battery, which is provided to the subsequent secondary power supply module. The secondary power supply module of each device converts the high-vo...

AI Technical Summary

Problems solved by technology

Due to the distance between the aircraft instrument and the payload satellite instrument, the voltage drop directly supplied by the battery is large. Under the high-power operation of the payload satellite, the cable loss is large and the heat generation is large, which is not conducive to the control of the thermal environment of the aircraft.

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