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Performance Enhancement of an Interleaved Parallel Three-Coupled Inductor Boost Converter
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DOI：10.1109/tpel.2026.3696719.png)
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Abstract
En 中文
With the continuous development of aerospace science and technology, the construction of space power plants has become an important research direction in the current development of space technology. The study of high-power DC-DC converters in space is part of the core technologies that restrict the growth of space power plants. To meet the development needs of modern space DC-DC power systems for high-power, high efficiency, and high anti-interference, this article proposes an interleaved parallel three-coupled inductor boost converter. Multiple coupled inductor technology is used to integrate three inductors on the same magnetic core, and based on retaining the original topology characteristics, phase-to-phase coupling is achieved, which improves the steady-state and transient performance of the converter. The use of interleaved parallel technology greatly reduces the ripple of input current, lowers the current stress of the converter switching transistor (i.e., the semiconductor power devices), reduces switching losses, improves the overall efficiency of the converter, and retains the advantages of the original topology minimum phase system. Finally, a 5-kW experimental prototype was under construction and the performance of the proposed converter was experimentally verified.
Keywords:
Coupling inductance
DC-DC
interleaved parallel connection
magnetic core
space power supply
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6.5
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1.7W
Citations:
8.3W
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