Research on High Reliable Aerospace Secondary Power Supply Based on Resonant Reset Forward Converter

With the development of space technology, space load equipment, including high-power electric thrusters, have more and more stringent requirements on DC power supply, such as voltage, power, efficiency and reliability. However, the particularity of space environment and the performance of existing astronaut-grade devices limit the direct realization of high-voltage busbar output. The 100V bus voltage of domestic spacecraft can not meet the demand of high-power load. Based on the 100V bus supply voltage of the spacecraft, this paper adopts a half-bridge LLC resonant converter to realize the simulation design of 600V output voltage and 1kW output power. Through the FHA modeling and modal analysis of the LLC resonant converter, the circuit parameter design is completed, and the influence of the circuit parasitic parameters is analyzed theoretically and through simulation. The correctness of the design is verified by Simulink simulation. Considering the reliability, the spatial high-power system adopts multi-module parallel topology, which is conducive to improving the power and power density of single module, and the sub-side capacitor array structure is convenient for multi-module parallel, which provides a feasible scheme for the miniaturization of space power supply.

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Research on High Reliable Aerospace Secondary Power Supply Based on Resonant Reset Forward Converter

Cited by 4 publications

References 2 publications

Design of Heating Power Supply for Power Processing Unit of Hall Thruster

Design of Heating Power Supply for Power Processing Unit of Hall Thruster

An Improved Cascading Scheme to Achieve Wide Gain Range and Efficiency Optimization for Resonant Forward Converter

Design of high voltage and high power supply for aerospace based on LLC resonant converter

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