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Power module heat management device and method based on self-adaptive adjustment of driving circuit

A technology of self-adaptive adjustment and drive circuit, applied in the direction of control/regulation system, simulator, program control, etc., can solve the problems of increasing useless loss, complex drive circuit, etc., and achieve the advantages of overcoming circuit impact, good dynamic performance, and simple circuit Effect

Active Publication Date: 2015-07-08
CHONGQING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method, due to the addition of additional circuits, often makes the drive circuit too complex, while increasing useless losses

Method used

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  • Power module heat management device and method based on self-adaptive adjustment of driving circuit
  • Power module heat management device and method based on self-adaptive adjustment of driving circuit
  • Power module heat management device and method based on self-adaptive adjustment of driving circuit

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Embodiment Construction

[0037] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0038] As shown in the figure, the power module thermal management device based on the adaptive adjustment of the driving circuit provided by the present invention includes a DSP analog voltage output circuit arranged between the driving circuit and the IGBT gate, an IBGT gate charging control loop and an IGBT gate Discharge control circuit;

[0039] The IGBT grid charging control loop is used to provide a charging loop for the IGBT grid parasitic capacitance while controlling the charging current peak value; the IGBT grid discharge control loop is used to provide a discharge loop for the IGBT grid parasitic capacitance while controlling The discharge current peak val...

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Abstract

The invention discloses a power module heat management device based on self-adaptive adjustment of a driving circuit. The power module heat management device based on the self-adaptive adjustment of the driving circuit comprises a DSP analog voltage output circuit arranged between the driving circuit and an IGBT grid, and an IGBT grid charging and discharging control loop, wherein the IGBT grid charging and discharging control loop is used for providing a charging and discharging loop for a stray capacitor of the IGBT grid, and the DSP analog voltage output circuit is used for generating the control voltage of the IGBT grid charging and discharging control loop. According to the power module heat management device based on the self-adaptive adjustment of the driving circuit, the base current of the IGBT grid charging and discharging control loop is adjusted by adjusting the output analog voltage of the DSP analog voltage output circuit, then the collector current of a triode is adjusted, and namely, the grid peak current of an IGBT is adjusted. According to the power module heat management device, the circuit is simple, and the problems of circuit impact and time delay which are caused by driving voltage switching are solved; an extra driving circuit is not needed by adjusting the given voltage of the triode in a control circuit.

Description

technical field [0001] The invention relates to the field of power module thermal management, in particular to a power module thermal management device and method based on an improved drive circuit. Background technique [0002] With the wide application of wind power generation, the reliability of wind power converters has received widespread attention. Since the wind power converter is a weak subsystem, most of the failures of the wind power system are caused by the failure of the internal converter. As the core component of the converter, the power device is the most vulnerable part because of its high cost and is easily affected by complex working conditions and accidents. In order to reduce the cost of device operation and maintenance and prolong its service life, it is necessary to improve its reliability. [0003] Since the reliability of power devices is affected by many factors, experts at home and abroad have obtained its characteristic quantity through experimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/042
Inventor 周雒维于燕来吴军科杜雄孙鹏菊
Owner CHONGQING UNIV
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