Abstract
With the rapid development of the world’s aerospace technologies, a high-power and high-reliability space high-voltage power supply is significantly required by new generation of applications, including high-power electric propulsion, space welding, deep space exploration, and space solar power stations. However, it is quite difficult for space power supplies to directly achieve high-voltage output from the bus, because of the harshness of the space environment and the performance limitations of existing aerospace-grade electronic components. This paper proposes a high-voltage power supply module design for space welding applications, which outputs 1 kV and 200 W when the input is 100 V. This paper also improves the efficiency of the high-voltage converter with a phase-shifted full-bridge series resonant circuit, then simulates the optimized power module and the electric field distribution of the high-voltage circuit board.
Highlights
High-voltage is required by the electric thruster to generate an electric or electromagnetic field to accelerate the flux of the pre-ionized propellant, which can range from several hundred V to several kV, depending on the particular type of electric thruster used (Reese et al, 2013; Fu et al, 2017; Bekemans et al, 2019; Forrisi et al, 2019)
This paper focuses on high-voltage power supply modules for space with 100 V input, 1 kV/200 W output
Inspired by paper (Yao et al, 2011; Karimi et al, 2014), we propose softswitching to improve the efficiency of this power module
Summary
With the rapid development of aerospace and power electronics technology, highefficiency, high-voltage and high-power DC power supplies are required in space applications (Novac et al, 2010; Wen-jie et al, 2020) such as space electric propulsion (Lord et al, 2020), traveling wave tube amplifier, space welding, and space solar power station (Xin-bin and Li, 2015; Wang et al, 2018; Zaitsev et al, 2019). At the second half-period: Switches Q2 and Q3 are turned on, Q1 and Q4 are turned off, and the rectifier circuit outputs approximately eight times the voltage of the secondary winding through the series of C1, C2∗ , C3, C4∗ and the secondary winding This design solves the problems of space high-voltage power supply, including high turn ratio transformers, secondary-side multi-windings in series with excessive stress and the power insulation. Separating the small signal variables of the entire circuit from the above equation, a set of equations can be listed as follows: v2 k + 1 T = a11v2 kT + a12v4 kT (24) In this power module, the rectifier capacitor can be charged and discharged in half a working cycle (switching cycle). The design of the space high-voltage power supply module meet the standards in the ECSS-E-HB-20-05A (Ecss, 2012)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
