重庆理工大学学报2024，Vol.38Issue(15)：30-40,11.DOI:10.3969/j.issn.1674-8425(z).2024.08.003
谐波电流激励下电驱动系统振动特性及主动控制策略研究
Research on vibration characteristics and active control strategy of electric drive system under harmonic current excitation
摘要
Abstract
To study the electromechanical coupling vibration characteristics of the electric drive system under harmonic current excitation and the active vibration damping control strategy,this paper builds an electromechanical coupling dynamics model of the electric drive system,taking into account the structural characteristics of the electric motor,magnetic saturation characteristics,time-varying meshing stiffness of gears,meshing error and other nonlinear factors.The electromechanical coupling vibration characteristics of the electric drive system under the excitation of different harmonic currents are investigated.Then,an active vibration reduction control strategy for the electric drive system based on harmonic current injection is proposed,and the optimal harmonic current parameters are identified offline.Our simulation results show the coupling effect of electromagnetic excitation and nonlinear mechanical excitation lead to electromagnetic torque fluctuation and phase current waveform distortion,and the harmonic current excitation aggravates the electromagnetic torque of the motor and the vibration amplitude of the gearing system while the harmonic current injection-based active vibration damping control strategy significantly reduces the fluctuation of the torque of the motor (6fe) and the amplitude of the harmonic component (12fe) of the gearing sub-dynamic mesh force.关键词
电驱动系统/多物理场耦合/振动特性/主动减振Key words
electric drive system/multi-physics field coupling/vibration characteristics/active damping分类
交通工程引用本文复制引用
葛帅帅,赵家银,张志刚,郭栋,石晓辉..谐波电流激励下电驱动系统振动特性及主动控制策略研究[J].重庆理工大学学报,2024,38(15):30-40,11.基金项目
国家自然科学基金项目(52005067) （52005067）
重庆市教育委员会科学技术研究计划青年项目(KJQN202301169) （KJQN202301169）
