内置式永磁同步电机弱磁控制技术的研究

doi:10.16180/j.cnki.issn1007-7820.2020.02.003

Abstract

Abstract:

In order to meet the speed and torque requirements of interior permanent magnet synchronous motor used in electric vehicles under different working conditions, a control strategy based on standardized mathematical model combining with on-line calculation method of Maximum Torque Per Ampere control and voltage feedback method of flux-weakening control was designed. Taking a 2.8 kW permanent magnet synchronous motor as the research object, the control strategy was simulated by using MATLAB/Simulink, and the experimental platform of flux-weakening control system was established. Simulation and experimental results demonstrated that the control strategy had good robustness and faster torque response speed, which could meet the requirements of motor speed and torque under different working conditions.

Key words: electric vehicle, nterior permanent magnet synchronous motor, maximum torque per ampere, flux-weakening control strategy, space vector control, voltage feedback method

CLC Number:

TP273

SHI Xun,YI Yingping,WANG Xiaoli. Research on Flux Weakening Control Technology of Interior Permanent Magnet Synchronous Motor[J].Electronic Science and Technology, 2020, 33(2): 14-19.

Figures/Tables 9

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References 16

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名称	符号	数值
额定电压/V	U	72
额定功率/kW	P	2.8
额定转速/r·min^-1	N	2 500
最大转速/r·min^-1	N_max	4 800
额定转矩/N·m	T	11
极对数	P_n	4
直轴电感/μH	L_d	299.82
交轴电感/μH	L_q	457.33
转子磁链/Wb	ψ_f	0.029 25
定子相电阻/Ω	R_s	0.011

Research on Flux Weakening Control Technology of Interior Permanent Magnet Synchronous Motor

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