Power electronic device, power electronic system and hot swap method of power unit

Abstract

The present invention provides a power electronic device, a power electronic system and a hot-plugging method for a power unit. The power electronic device includes a power unit and an installation grid matched with the power unit; the installation grid is provided with guide rails and an inlet and outlet for the power unit to be pushed in and pulled out, and is provided with a power supply and control output end and a signal output end. The power unit is provided with a micro switch, a power source, a control input end and a signal input end which are respectively connected with the power source, the control output end and the signal output end. When the power unit needs to be connected, the power unit is inserted into the installation grid along the guide rail, and the power supply and control input end are contacted with the power supply and control output end to form an electrical connection, and then the signal input end of the power unit and the signal output end are connected again, and the micro Press the switch to start the power unit. When the power unit needs to be pulled out, the sequence is reversed. The present invention can realize hot insertion or hot extraction of the power unit relative to the installation grid under the condition that the whole machine of the power electronic system is electrified, which greatly improves the working efficiency of the whole machine system.

Description

technical field [0001] The invention relates to a power electronic device, a power electronic system and a hot plugging method for a power unit. Background technique [0002] In the traditional power electronic system, multiple IGBTs, inductors, capacitors, resistors and other components, which are the main components of the power part, are installed separately on the cabinet, and the power part has not been modularized. Only in individual power electronic systems, multiple IGBTs or multiple inductors, capacitors, resistors and other components are integrated into a power electronic device, that is, the power part is modularized. Usually a power electronic system will contain several power electronic devices. [0003] Such as figure 1 As shown, in the current power electronic system, each power electronic device includes a power unit 1 , a plurality of conductive terminals 10 , and a plurality of connection terminals 13 . The power line 14 connected to the power grid is c...

AI Technical Summary

Problems solved by technology

Since the power line 14 and the signal line 15 are directly connected to the power unit 1, the movement range of the power unit 1 is limited, resulting in that the power electronic device cannot be freely plugged and unplugged relative to the cabinet.

If a certain power electronic device in the power electronic system fails, the entire power electronic system can only be shut down for repair or replacement, which seriously affects the working efficiency of the power electronic system

[0004] Therefore, in the traditional power electronic system, it is impossible to realize the free plug function of the power electronic device relative to the cabinet, and it is impossible to repair or replace one of the faulty power electronic devices when other power electronic devices are charged and working normally. The electronic device cannot realize the hot swap function

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