Bus voltage calibration method and apparatus and computer readable storage medium

Abstract

The invention provides a bus voltage calibration method and apparatus and a computer readable storage medium. The bus voltage calibration method is used for a distributed converter system. The bus voltage calibration method comprising the steps that bus voltage values of subsystems of the distributed converter system are obtained; according to the bus voltage values of the subsystems, a calibration voltage value is determined; voltage calibration coefficients of the subsystem are determined according to the bus voltage values of the subsystems and the calibration voltage value; and the voltagecalibration coefficients of the subsystems are transmitted to the subsystems, so that the bus voltage values of the subsystems are calibrated. According to the bus voltage calibration method and apparatus used for the distributed converter system, the voltage calibration coefficients are transmitted to the subsystems, so that the bus voltage values of the subsystems are calibrated into the same voltage value, stability and reliability of the distributed converter system are improved, and the circumstance of false start or delayed start of brake unit subsystems due to bus voltage deviation isavoided.

Description

technical field [0001] The invention relates to the field of variable current control, in particular to a method and device for calibrating bus voltage and a computer-readable storage medium. Background technique [0002] At present, the distributed converter system includes multiple subsystems, such as grid-side subsystem, machine-side subsystem and braking unit subsystem. These subsystems collect the bus voltage through independent collection loops. The collection points of the respective subsystems are at different positions of the bus. For example, the collection point of the grid-side subsystem is inside the module, the collection point of the machine-side subsystem is inside the module, and the collection point of the braking unit subsystem is at the connection between the braking unit and the bus. Due to the independence of the voltage acquisition loop devices of each subsystem, the different locations of the acquisition points, and the voltage drop of the copper ba...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bus voltage calibration method and equipment and a computer-readable storage medium to solve the problem of deviations between the bus voltages of the various subsystems of the existing distributed converter system

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