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发明公开
CN103715863A 一种变换器及其功率器件的均热控制方法 有权 转让

一种变换器及其功率器件的均热控制方法
摘要：
本发明公开了一种变换器及其功率器件的均热控制方法，该变换器还包括至少两个并联的功率模块，平均值确定模块，用于确定至少两个功率模块的电流或功率平均值；与每个功率模块相对应的给定值确定模块，用于根据相应功率模块的功率器件的散热信息及电流或功率平均值为相应功率模块确定电流或功率给定值；与每个功率模块相对应的反馈值确定模块，用于对相应功率模块的电流或功率进行采样，并将采样电流或功率作为相应功率模块的电流或功率反馈值；与每个功率模块相对应的调节器，用于根据相应功率模块的给定值及反馈值生成相应功率模块的控制信号。实施本发明的技术方案，可实现各个功率模块的功率器件的均热。
摘要（英）：

The invention discloses a converter and a heat equalization control method of a power device of the converter. The converter comprises at least two power modules in parallel connection, an average value determining module used for determining the current or power average value of the at least two power modules, given value determining modules which are corresponding to each power module and are used for determining current or power given values for corresponding power modules according to heat radiation information of power devices and current or power average values of the corresponding power modules, feedback value determining modules which are corresponding to each power module and are used for sampling the current or power of corresponding power modules, and adopting sampled current or power as current or power feedback values of the corresponding power modules, and regulators which are corresponding to each power module and are used for generating control singles of corresponding power modules according to the given values and feedback values of the corresponding power modules. With the converter and the heat equalization control method of the power device of the converter of the invention adopted, heat equalization of the power device of each power module can be realized.

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