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Coupling inductance type high-voltage high-power DC converter for space and control system thereof

A technology of DC converters and coupled inductors, applied in control/regulation systems, DC power input conversion to DC power output, output power conversion devices, etc., can solve the problems of low overall efficiency, large switching losses of bidirectional DC converters, and output Issues such as low voltage and power levels

Active Publication Date: 2020-06-12
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the technical problems of the existing bidirectional DC converters such as large switching loss, low overall efficiency, low output voltage and power level, the present invention provides a space-use coupled inductance high-voltage transformer Power DC Converter and Its Control System

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  • Coupling inductance type high-voltage high-power DC converter for space and control system thereof
  • Coupling inductance type high-voltage high-power DC converter for space and control system thereof
  • Coupling inductance type high-voltage high-power DC converter for space and control system thereof

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Embodiment Construction

[0031]Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention.

[0032] first see attached figure 1 , which shows a schematic structural diagram of a coupled inductance-type high-voltage high-power DC converter for space use according to the first embodiment of the present invention. Such as figure 1 As shown, according to the first embodiment of the present invention, the novel space coupled inductive high-voltage high-power DC converter consists of a first DC port, a second DC port, a first capacitor C1, a second capacitor C2, a third capacitor C3, Energy storage inductance L1, L2, L3, the first MMC module group (comprising figure 1 The first MMC submodule SMn1 to the first MMC submodule SMnn shown, a t...

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Abstract

The invention relates to the technical field of power electronics, and particularly provides a coupling inductance type high-voltage high-power DC converter for space. The converter comprises a firstMMC module group and a second MMC module group; each of the first MMC module group and the second MMC module group comprises a plurality of MMC sub-modules connected in series, the first end of the first inductor is connected with the first electrode of the first direct current port, and the second end of the first inductor is connected with the first ends of the first MMC module group and the second MMC module group; the second end of the first MMC module group is connected with the second electrodes of the first direct current port and the second direct current port, and the second end of the second MMC module group is connected with the first ends of the first capacitor, the second capacitor and the second inductor; the second end of the second inductor is connected with the first electrode of the second DC port, and the second ends of the first capacitor and the second capacitor are connected with the second electrodes of the first DC port and the second DC port. The switching lossof the converter is effectively reduced, and the output voltage level is further improved.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a coupled inductance type high-voltage high-power DC converter for space and a control system thereof. Background technique [0002] In today's society, environmental and energy issues have become the focus of attention of countries all over the world. Under the influence of the rapid development of various new energy and renewable energy, the power system is developing towards the hybrid energy field of comprehensive application of new energy such as fuel cells, photovoltaic power generation, and wind power generation. bigger. Nowadays, bidirectional converters have been widely used in battery charging and discharging, electric vehicle on-board power supply, DC uninterruptible power supply system, aviation energy, solar photovoltaic power generation system and other fields. [0003] However, existing bidirectional DC converters have disadvantages such as high switchi...

Claims

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Application Information

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IPC IPC(8): H02M3/158
CPCH02M3/158H02M1/007
Inventor 霍群海尹靖元吴理心韦统振
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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