电动汽车驱动系统直流母线稳定性分析

doi:10.19562/j.chinasae.qcgc.2022.04.013

Abstract

Abstract:

In order to improve the dc bus quality of the high voltage system of electric vehicles， the load restriction requirements of the driving system are put forward based on the principle of stability analysis. Based on the impedance analysis method， the source/load side impedance model is established. According to the Middlebrook stability criterion， the stability conditions in the full frequency domain are deduced， and the power restriction for the load connected to the DC bus is clearly defined. Moreover， the system stability improvement by the source/load side impedance matching method is studied， which provides a theoretical basis for system parameters design. Finally， the analysis conclusion is verified by experiments combined with a specific electric vehicle.

Key words: electric vehicle, DC bus, impedance analysis method, stability condition, impedance matching

Cheng Lin,Jianxia Sun,Yao Xu,Jiang Yi. Stability Analysis of DC Bus of Electric Vehicle Drive System[J].Automotive Engineering, 2022, 44(4): 583-590.

Figures/Tables 13

References 26

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Stability Analysis of DC Bus of Electric Vehicle Drive System

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References 26

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