Inverter modeling including non-ideal IGBT characteristics in Hybrid Electric Vehicle for accurate EMI noise prediction

H. Shim, Hongseok Kim, Y. Kwack, Minkang Moon, Hyunsuk Lee, Jinwook Song, Joungho Kim, Beomshik Kim, Eulyong Kim
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引用次数: 11

Abstract

In this study, an inverter model including non-ideal Insulated Gate Bipolar Transistors (IGBTs) characteristics and a busbar model using impedance measurement is proposed. A motor drive system in Hybrid Electric Vehicle (HEV) consists of a battery, an inverter, a cable, and an electric motor. The inverter is not only a voltage source, but also one of the principal noise sources in the motor drive system. Since switching operations of power devices in the inverter make Electromagnetic Interference (EMI) noise, a non-ideal model of the IGBTs is needed for accurate EMI analysis of the motor drive system. By simulating the motor drive system with proposed non-ideal inverter model, it is possible to predict accurate common mode current noises in view of whole vehicle level. The model is verified by comparison with measurement.
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基于非理想IGBT特性的混合动力汽车逆变器建模,实现对电磁干扰噪声的准确预测
在这项研究中,提出了一个包含非理想绝缘栅双极晶体管(igbt)特性的逆变器模型和一个使用阻抗测量的母线模型。混合动力汽车(HEV)中的电机驱动系统由电池、逆变器、电缆和电机组成。逆变器不仅是电压源,也是电机驱动系统的主要噪声源之一。由于逆变器中功率器件的开关操作会产生电磁干扰噪声,因此需要一个非理想的igbt模型来精确分析电机驱动系统的电磁干扰。利用所提出的非理想逆变器模型对电机驱动系统进行仿真,可以在整车水平上准确预测共模电流噪声。通过实测对比验证了模型的正确性。
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