Multi-system voltage output power supply method

Abstract

The invention discloses a multi-system voltage output power supply method, which comprises the following steps: carrying out parameter calculation of single batteries under each system according to multi-system power supply load parameters; calculating power supply currents and the capacities of the single batteries under each system; selecting the single battery scheme with the maximum power supply current and the highest capacity; selecting the single batteries for electric pile scheme design of a battery pack, and determining series and parallel schemes of the single batteries; carrying out single batteries marshalling, and bonding, fixing and molding the marshaled single batteries; and carrying out connecting, spot welding and tin soldering on all single batteries according to the electric pile scheme. The multi-system voltage output power supply method reasonably selects the single batteries, combines the single batteries according to different numbers and outputs different power supply voltages; each power supply voltage is controlled to output; and an extra device is not added, so that the manufacturing cost can be greatly reduced; charge-discharge maintenance can be carried out according to the highest output voltage system; and the reliability is high.

Description

technical field [0001] The invention belongs to the technical field of aircraft power supply systems, in particular to a multi-system voltage output power supply method. Background technique [0002] In some aircrafts, the power supply system is required to output power supply voltages of various systems, namely 27V, 15V and 12V, to supply power for different loads of the aircraft, and the cost of the power supply system must be controlled within a certain range. In the design of traditional power systems, the mode of "battery pack + DC / DC converter" or "battery pack 1+battery pack 2+battery pack 3" is often used, resulting in high design costs. Designing targeted maintenance schemes for the battery packs of each power supply system has poor guarantee and cannot meet the cost control requirements of the aircraft for the power supply system. Contents of the invention [0003] In order to solve the above technical problems, the present invention proposes a multi-system volt...

AI Technical Summary

Problems solved by technology

In the design of traditional power systems, the mode of "battery pack + DC / DC converter" or "battery pack 1+battery pack 2+battery pack 3" is often used, resulting in high design costs. Targeted maintenance plan design for battery packs of each power supply system, the guarantee is poor, and it cannot meet the cost control requirements of the aircraft for the power system

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