研究目的
提出一种在更接近实际电气工况下对IGBT??榻邢冉铀俟β恃凡馐缘淖爸糜敕椒ǎ⑹迪衷谙吣ニ鸺嗖?。
研究成果
所提出的加速功率循环测试概念有助于开发寿命模型,并在更接近实际电气运行条件下研究功率器件??榈目煽啃员硐帧2馐灾蟹⑾旨舷咄嘶悄?榈闹饕Щ啤?/p>
研究不足
该论文未明确提及局限性,但该方法需要特定设备和设置才能准确监测温度和磨损情况。
1:实验设计与方法选择:
本文描述了一种先进的IGBT模块加速功率循环测试装置,包括不同功能的控制方法。
2:样本选择与数据来源:
测试采用600 V、30 A传递模塑IGBT???。
3:实验设备与材料清单:
包括测试变流器、负载变流器、在线VCE_ON测量电路、DSP、Labview接口、水冷系统及外部温度可控加热系统。
4:实验流程与操作步骤:
执行功率循环测试的详细步骤,包括在线磨损监测和结温估算。
5:数据分析方法:
改进的利用导通状态集电极-发射极电压VCE_ON和负载电流进行原位结温估算的方法。
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IR camera
FLIR X8400sc
FLIR
Used to measure directly the applied temperature stresses and validate the applied methods.
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IGBT module
600 V, 30 A
Used as the test converter in the power cycling test setup.
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IGBT module
1200 V, 75 A
Used as the load converter in the power cycling test setup.
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Digital signal processor
Used to control the two converters in the power cycling test setup.
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Labview interface
National Instruments
Communicates with the DSP to manage and monitor the overall system.
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Water cooling system
Used to change the heat-sink temperature according to the desired test conditions.
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External temperature controllable heating system
Used to keep the heat-sink temperature as a constant during the power cycling test.
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Online VCE ON measurement circuit
Used to measure the on-state collector–emitter voltages VCE ON of the IGBTs and forward voltages VF of the diodes in real time.
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