Research on a new bidirectional DC-DC topology for space applications
Abstract
In the spacecraft power supply system, due to the discontinuous working current, the traditional boost circuit has unstable operating points and leads to the depression of bus power quality and the module efficiency, which can't be directly applied to the space power system. With the advantages of high power density, high efficiency and continuous current, the Weinberg topology has been supplied in the practical space power system. In this paper, we improve the Weinberg topology, which combines the discharge and charge function in one converter, to achieve smaller volume, lighter weight and higher power density space power system. A detailed analysis is made on the bidirectional working principle of the proposed circuit topology, and the circuit gain of boost and buck processing is derived. The simulation model is built to show the feasibility of the proposed topology.
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The improved Weinberg topology adds diode and switches to realize bidirectional power flow.
“This topology adds the diode and switches to realize the function of the bidirectional power flow, as shown in Fig. 13.”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [72]
The improved Weinberg topology has a simple structure, high power density, and efficiency.
“It has a simple structure, high power density, and efficiency.”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [72]
The improved Weinberg topology has a conventional buck circuit on one side and a Weinberg boost topology circuit on the other side.
“A conventional buck circuit is placed on one side and a Weinberg boost topology circuit on the other side.”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [72]
The improved Weinberg topology works in buck and boost modes, achieving bidirectional power flow and higher energy density within a smaller mass.
“This topology works on two modes, buck, and boost modes, achieving thus bi-directional power flow and consequently higher energy density within a smaller mass.”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [72]
In [72], a new bidirectional converter is proposed, being an improved Weinberg topology.
“Finally, in [72] a new bidirectional converter is proposed, being an improved Weinberg topology.”
From A Comprehensive Review on Small Satellite Microgrids (2022) · cites this paper as [72]
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References 10 · Cited by 6
- Authors
- Qunhai, H., Jingyuan, Y., Lixin, W., & Tongzhen, W.
- Affiliations
- Chinese Academy of Sciences (CN)
- Venue
- 2017 12th IEEE Conference on Industrial Electronics and Applications (ICIEA)
- Publisher
- IEEE
- Published
- 2017-06
- Pages
- 1686-1690
- OpenAlex
- W2786557124
- Cited by
- 6
- References
- 10
- Citations by year
- 2025: 1 · 2024: 1 · 2022: 1 · 2020: 1 · 2019: 2
- FWCI
- 1.16
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- IEEE Conference on Industrial Electronics and Applications (ICIEA) (publishedVersion)
- Topics
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced DC-DC Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Multilevel Inverters and Converters
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Wireless Power Transfer Systems
- Keywords
- bidirectional DC-DC converter, spacecraft power supply, space power systems, continuous current, power density, converter efficiency, power quality
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