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Control method and device of intelligent power module

A technology of intelligent power module and control method, applied in the direction of automatic disconnection emergency protection device, circuit device, electrical program control, etc., can solve problems such as unstable operation, and achieve the effect of increasing response speed and operation stability

Inactive Publication Date: 2017-01-25
GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from the figure that the repeated switching on and off of the intelligent power module causes the driven motor load to be unable to run stably

Method used

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  • Control method and device of intelligent power module
  • Control method and device of intelligent power module
  • Control method and device of intelligent power module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 2 It is a flow chart of an intelligent power module control method in Embodiment 1 of the present invention. The method is used to adjust the temperature of the intelligent power module in real time, avoiding repeated switching of the intelligent power module due to excessive temperature, and improving the operation efficiency of the intelligent power module. stability. The method can be executed by a device having an intelligent power module adjustment function, and the device can be implemented by software and / or hardware, such as a typical user terminal device, such as a mobile phone, a computer, and the like. The control method of the intelligent power module in this embodiment includes: step S210, step S220, step S230 and step S240.

[0029] Step S210, acquiring the temperature of the intelligent power module at the current moment.

[0030] Specifically, the intelligent power module is a new type of power switching device, which adds peripheral equipment ...

Embodiment 2

[0041] image 3 It is a flow chart of a control method of an intelligent power module in Embodiment 2 of the present invention. This embodiment further explains step S230 on the basis of Embodiment 1, wherein, the intelligent power module is adjusted according to the temperature change trend. The temperature of the power module includes: if the temperature of the intelligent power module is greater than the preset temperature first threshold, and if the change trend of the temperature is rising, then reduce the temperature of the intelligent module; if the temperature of the intelligent power module greater than the first threshold of the preset temperature, and if the change trend of the temperature is decreasing, then keep the temperature of the intelligent module unchanged. Specifically, the control method of the intelligent power module in this embodiment includes: step S310, step S320, step S330 and step S340.

[0042] Step S310, acquiring the temperature of the intellig...

Embodiment 3

[0049] Figure 4 is a flow chart of a control method for an intelligent power module in Embodiment 3 of the present invention. This embodiment further explains step S240 on the basis of Embodiment 1, wherein, if the temperature of the intelligent power module is greater than the preset If the temperature of the intelligent power module is lower than or equal to the preset temperature second threshold, the intelligent power module is turned off; if the temperature of the intelligent power module is less than or equal to the preset temperature second threshold, the intelligent power module is turned on. Specifically, the control method of the intelligent power module in this embodiment includes: step S410, step S420, step S430 and step S440.

[0050] Step S410, acquiring the temperature of the intelligent power module at the current moment.

[0051] Step S420: Determine the temperature change trend of the intelligent power module according to the temperature at the current mome...

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Abstract

The invention discloses a control method and a control device of an intelligent power module. The control method comprises the following steps: obtaining the temperature of an intelligent power module at current moment; determining the temperature change trend of the intelligent power module according to the temperature at current moment and the temperature at previous moment; regulating the temperature of the intelligent power module according to the temperature change trend; and controlling the connection and disconnection of the intelligent power module according to the temperature of the intelligent power module. The temperature is regulated in real time according to the temperature change trend of the intelligent power module, so as to control the connection or disconnection of the intelligent power module, and automatic disconnection of the intelligent power module at excessively high temperature is prevented. The problem of repeated start and shutdown of the intelligent power module is solved, and the operation stability of the intelligent power module is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of control applications, and in particular to a control method and device for an intelligent power module. Background technique [0002] Intelligent power modules (Intelligent Power Modules, IPM) is a new type of power switching device, which is widely used in variable frequency motors. The intelligent power module integrates the power switching device Insulated Gate Bipolar Transistor (IGBT), drive circuit, protection circuit, built-in thermistor and temperature sensor, and has the characteristics of high voltage resistance, high input impedance, high switching Frequency, low power and other advantages, and the intelligent power module is also equipped with fault detection circuits such as undervoltage, overcurrent and overheating, and can send the detection signal to the processor for processing, which improves the reliability of the system. When any fault of undervoltage, overcurrent, overhea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04H02H5/04
CPCG05B19/04H02H5/04
Inventor 尹波
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD
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