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Airplane ground static variable power supply output cable voltage drop compensation method and system

A static variable power supply and output voltage technology, applied in the direction of power network operating system integration, control/regulation system, information technology support system, etc., can solve overvoltage, parameter setting overcompensation, estimated value cannot reach the expected set value, etc. problem, to achieve the effect of simple control algorithm, high control precision and precise control

Active Publication Date: 2021-08-06
SICHUAN HANGDIAN MICRO ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In turn, the estimated value cannot reach the expected set value, and if the adjustment is not timely, it will easily lead to overvoltage, and improper parameter setting will easily cause overcompensation. In practical applications, it is impossible to accurately control the voltage at the connection between the cable end plug and the aircraft.

Method used

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  • Airplane ground static variable power supply output cable voltage drop compensation method and system
  • Airplane ground static variable power supply output cable voltage drop compensation method and system

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Embodiment 1

[0026] In view of the fact that in the prior art, there are many variables in estimating voltage compensation based on cable impedance and output current, in this embodiment, a method for compensating the voltage drop of the aircraft ground static variable power supply 1 output cable 2 is specifically provided. The voltage drop compensation method directly collects The voltage value at the end plug of the output cable 2 is used as feedback for PID control without estimation and the control algorithm is simple, which can accurately control the required voltage value at the end plug of the output cable 2 in real time. This compensation method includes:

[0027] S1: if figure 1 As shown, at the plug where the output cable 2 is connected to the aircraft, that is, the output cable 2 is located at the part of the aircraft connection plug 3, the spare control core 5 of the output cable 2 is crimped in parallel with the main circuit core 4 of the output cable 2; In order to simplify ...

Embodiment 2

[0036] On the basis of the compensation method for the voltage drop of the output cable 2 of the aircraft ground static variable power supply 1 in Embodiment 1, the present invention also provides a voltage drop compensation system for the aircraft ground static variable power supply 1 output cable 2, including the aircraft ground Static variable power supply 1 and the output cable 2 connected to the aircraft ground static variable power supply 1, its specific connection mode has been set forth in embodiment 1, no longer repeat them here, this system also includes:

[0037] At the plug where the output cable 2 is connected to the aircraft, the backup control wire core 5 of the output cable 2 is crimped in parallel with the main circuit wire core 4 of the output cable 2, and the other end of the backup control wire core 5 is connected to the ground of the aircraft The main control chip of the static variable power supply 1; the spare control core 5 and the main circuit core 4 ar...

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Abstract

The invention discloses a compensation method and system for the voltage drop of an output cable of an airplane ground static variable power supply and belongs to the technical field of airplane ground static variable power supplies. The compensation method comprises steps that S1, a standby control wire core of the output cable and a main loop wire core of the output cable are made to be connected in parallel and pressed at a plug where the output cable is connected with an airplane; S2, the standby control wire core is connected to an aircraft ground static variable power supply, and the standby control wire core is taken as a voltage acquisition wire of a main control chip in the aircraft ground static variable power supply; S3, the main control chip takes the voltage value collected by the standby control wire core as an output voltage negative feedback value, PID closed-loop control is carried out on the output voltage negative feedback value and an output voltage set value until the deviation between the output voltage negative feedback value and the output voltage set value is smaller than a threshold value, voltage drop compensation of an output cable is achieved, and purposes of simplifying voltage compensation estimation, and controlling the output voltage can be realized in real time.

Description

technical field [0001] The invention belongs to the technical field of aircraft ground static variable power supplies, and in particular relates to a compensation method and system for output cable voltage drop of aircraft ground static variable power supplies. Background technique [0002] The requirements for the voltage range of the aircraft power supply are relatively strict. After the static variable power supply on the ground of the aircraft is loaded, the voltage drop will occur on the output cable due to the cable's own impedance, but the cable voltage drop will change accordingly under different loads and transmission cables. [0003] The existing cable voltage drop compensation method: directly collect the output terminal voltage of the ground static variable power supply of the aircraft, and estimate the voltage compensation according to the cable impedance and output current, because there are many variables when estimating the voltage compensation, such as: cable...

Claims

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Application Information

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IPC IPC(8): G05F1/56
CPCG05F1/56Y04S20/20
Inventor 郭仕友赵海韩鹤光
Owner SICHUAN HANGDIAN MICRO ENERGY CO LTD
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