Testing device and method for auxiliary inverted controller of subway vehicle system

Abstract

The invention discloses a testing device and method for an auxiliary inverted controller of a subway vehicle system. The testing device comprises a testing signal generation and detection system. Thetesting signal generation and detection system consists of a PLC test controller, a testing signal generation module, a testing data returning module, and an upper testing server. The PLC test controller is used for simulating a semi-physical simulation environment in which an auxiliary inverted controller works; the testing signal generation module is used for generating a simulation signal of the operation of the auxiliary inverted controller; the testing data returning module is used for collecting the operation state and an execution result of the auxiliary inverted controller and returning the operation state and the execution result to the upper testing server; and the upper testing server is used for generating a testing result based on the operation state and the execution result.According to the invention, a defect that the auxiliary inverter needs to be installed at a subway vehicle and then detection is carried out during the actual running of the subway vehicle according to the traditional way of detecting the auxiliary inverter controller is overcome; and thus rapid detection and rapid fault identification of the auxiliary inverter controller are realized on the offline condition of the auxiliary inverter.

Description

technical field [0001] The invention relates to a testing device and method for an auxiliary inverter controller of a subway vehicle system. Background technique [0002] With the rapid development of my country's urban rail transit, auxiliary inverters have been widely used in the traction control of urban subway vehicle systems. The auxiliary inverter of the subway vehicle mainly provides three-phase 380V AC power supply and 110V DC power supply for the vehicle, which is used for vehicle control and HVAC lighting. The auxiliary controller Agate Aux is the core of the auxiliary inverter system. The controller generates a sinusoidal pulse width modulation (SPWM) signal through the decoder to drive the insulated gate bipolar transistor (IGBT) and subsequent circuits to complete the three-phase AC inverter. Work. In the long-term use process, the operation failure of the auxiliary inverter control box occurs continuously. At the same time, according to the requirements of re...

AI Technical Summary

Problems solved by technology

Among them, the auxiliary inverter system of the vehicle system is faced with the characteristics of complex function test, difficult fault diagnosis, and high replacement cost of equipment and components, especially the auxiliary controller Agate Aux function module is difficult to judge faults and lacks fault detection methods.

At present, the detection of auxiliary controllers mainly relies on special detection instruments provided by foreign manufacturers, and there are defects such as incomplete fault detection and untimely response.

At the same time, the traditional detection method needs to install the auxiliary inverter on the subway vehicle, and carry out the detection in the actual operation of the subway vehicle, which takes up a lot of line test time, which provides a great guarantee for the normal operation and overhaul of the urban rail transit vehicle system. Guaranteeing poses great difficulties

Images