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Isolated and reconfigurable power converter

A power converter, power conversion technology, applied in high-efficiency power electronic conversion, output power conversion device, irreversible DC power input conversion to AC power output and other directions, can solve problems such as limited conversion structure

Pending Publication Date: 2021-11-02
SAFRAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Outside these ranges, the two conversion structures 2, 30 do not perform optimally when there are variations in the voltage delivered by the aircraft's on-board high-voltage DC network, and each conversion structure is therefore limited

Method used

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  • Isolated and reconfigurable power converter
  • Isolated and reconfigurable power converter
  • Isolated and reconfigurable power converter

Examples

Experimental program
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Effect test

Embodiment Construction

[0065] Reference below image 3 , image 3 represents the high DC voltage V intended to be delivered by the aircraft's on-board electrical network according to the invention bus1 converted to at least a low DC voltage V bus2 The low DC voltage is at a level suitable for powering various equipment of the aircraft such as emergency wind turbines (known by the acronym RAT for Ram air turbine), batteries, etc.

[0066] image 3 The conversion system 32 shown in is capable of converting the high DC voltage V bus1 Converted to two low DC voltages V capable of powering various aircraft equipment bus2 and V bus3 (not necessarily the same).

[0067] The power conversion system 32 is also capable of performing the conversion in reverse. In this case, some components of the system are selected accordingly, as will be detailed later.

[0068] image 3 The circuit diagram shown in is a simplified representation of a conversion system 32 according to the invention. For simplicity,...

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PUM

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Abstract

The invention relates to a power conversion system for an on-board power supply system in an aircraft, said power conversion system being capable of converting a high DC voltage into a low DC voltage, and vice versa, and comprising switching means designed such that the system operates according to various configurations, each of which forms an isolated DC / DC converter.

Description

technical field [0001] The present invention relates to onboard electrical power systems in aircraft, and in particular to the structure of power converters integrated into such electrical power systems. Background technique [0002] To power the on-board equipment on the aircraft, a number of power converters are used, allowing the individual devices to be powered at low DC voltage from the high DC voltage network of the aircraft. [0003] There are many types of power converters available at the state of the art and are chosen with respect to the DC voltage level of the aircraft's network and the voltage level required for correct operation of the device and with respect to the control of the converter. To be precise, the most decisive control parameters are switching frequency, duty cycle and phase shift between power bridges. However, other parameters such as dead time (switching delay between two power arms) may also affect the control quality. [0004] Typically, an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/335H02M7/48
CPCH02M3/33584Y02B70/10H02M7/4818H02M7/4815H02M7/219
Inventor 金-西尔维奥·恩高阿·特·马甘博西里利·戈蒂埃
Owner SAFRAN