摘要
在研究新能源系统可靠性时,功率模块IGBT的开关损耗的准确预测是非常重要的。采用功率模块的开关动态测试系统进行试验,可以自动调整直流母线电压、集电极电流、门极驱动电压和门极电阻,记录开关动态电压、电流波形,通过处理获取精确的开关损耗值。基于试验数据的基础上,通过SVM算法建立开关损耗模型,改善了现有的基于小样本数据的开关损耗模型。
The modeling of switching loss in power modules is important in practice for the prediction and evaluation of new energy system reliability. Using the power modules dynamic test system that can automatically adjust the DC bus voltage, collector current, gate drive voltage and gate resistance. Recording switching dynamic voltage and current waveforms to obtain precise switching loss values by processing. A switching loss model that improved the existing switching loss model based on a small sample of test points was established by SVM algorithm.
出处
《电子器件》
CAS
北大核心
2017年第1期228-231,共4页
Chinese Journal of Electron Devices
基金
国家科技支撑计划项目(2015BAA09B01)
国家自然科学基金项目(51377044)
河北省科技计划项目(14214503D
13214303D)
