新能源车电机驱动系统的EMI协同分析

doi:10.16180/j.cnki.issn1007-7820.2023.10.004

Abstract

Abstract:

In view of the electromagnetic interference problem of the motor drive system inside the electric vehicle, a prediction model of the electromagnetic interference of the vehicle motor drive system is established in this study. Based on the principle of electromagnetic compatibility, the electromagnetic interference mechanism of the in-vehicle motor drive system module is analyzed. The model of the IGBT power semiconductor device that causes interference in the module is constructed, and the influence of the parasitic parameters of the actual device is considered in the modeling process. Through the Simulink+Maxwell+Simplorer collaborative analysis technology, the electromagnetic interference signal acquisition of the motor drive system is realized. The comparison between the simulation and the measured data verifies the effectiveness of the method proposed in this study, and the errors of both are less than 10 dB.Based on the GB/T 18655-2018 electromagnetic compatibility standard, the results of the parts exceeding the standard are optimized and rectified.

Key words: new energy vehicle, motor drive system, electromagnetic interference, electromagnetic compatibility, permanent magnet synchronous motor, collaborative analysis, SVPWM algorithm, inverter

CLC Number:

TN97

XU Zhijiang,TAN Kangbo,LI Min,ZHAO Ziwen,CHEN Tongshan. Research on EMI Synergy Analysis of New Energy Vehicle Motor Drive System[J].Electronic Science and Technology, 2023, 36(10): 24-31.

Figures/Tables 15

Figure 1.

Table 1.

The parameter values of motor model"

参数名称	数值	参数名称	数值
额定功率/kW	20.00	额定电压/V	305.00
额定转速/rpm	3 000.00	转子极数/个	8.00
转子外径/mm	136.80	转子内径/mm	63.00
定子外径/mm	248.00	定子内径/mm	140.00
定子槽数/个	36.00	叠压系数	0.97
定子槽 $B S 0$ /mm	2.40	定子槽 $B S 1$ /mm	5.63
定子槽 $B S 2$ /mm	10.16	定子槽 $H S 0$ /mm	1.40
定子槽 $H S 1$ /mm	0.50	定子槽 $H S 2$ /mm	36.00

Table 1.

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Figure 3.

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Figure 7.

Table 2.

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Figure 10.

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Figure 13.

References 19

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端口名称	端口描述
I_a₁	电机三相线缆A相电流
I_b₁	电机三相线缆B相电流
I_c₁	电机三相线缆C相电流
Theta	电机转角
T_e	电机转矩
N	电机转速

Research on EMI Synergy Analysis of New Energy Vehicle Motor Drive System

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