摘要
作为牵引传动系统能量转换的关键部件,牵引电机在电气激励作用下会受到各种冲击载荷和周期激振力的作用,从而产生机电耦合振动,威胁牵引传动系统的可靠运行。对此,基于双惯量模型对牵引传动系统机电耦合振动特性开展研究。首先,建立牵引电机的双惯量模型,依据此模型对其固有频率进行计算,并介绍了机械传动系统的同频受迫振动模态。其次,根据逆变器的开关特性,着重分析了脉宽调制(PWM)导致的边带谐波转矩对机电耦合同频共振的影响,探索逆变器的频率耦合产生的间谐波对机电耦合系统的影响。接着,以传递函数的形式对考虑双惯量负载的牵引传动系统进行建模,从频域角度对系统机电耦合共振特性进行理论分析。最后,利用硬件在环测试对所分析结果进行验证。
As a key component of electromechanical energy transmission,the traction drive system will be subjected to various impact loads and periodic excitation forces under electrical excitation,resulting in electromechanical coupling vibration.To analyze the electromechanical coupling vibration mechanism of the subway traction drive system,the drive device was simplified,which is equivalent to a two-mass model,and its natural frequency was calculated.Considering different torque excitation forms,the vibration mode of the mechanical drive system was analyzed.Then,according to the switching characteristics of the inverter,the effects of the sideband harmonic torque generated by pulse width modulation(PWM)on the same-frequency resonance of electromechanical coupling was focused on.Then,the traction drive system considering a two-mass load was modeled in the form of a transfer function,and the electromechanical coupling resonance characteristics of the system were theoretically analyzed from the frequency domain perspective.Finally,the analyzed results are verified in a hardware-in-the-loop test system.
作者
葛兴来
常玉
王帅帅
沐俊文
左运
王惠民
GE Xinglai;CHANG Yu;WANG Shuaishuai;MU Junwen;ZUO Yun;WANG Huimin(Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle,Ministry of Education,Southwest Jiaotong University,Chengdu 611756,China;Graduate School of Tangshan,Southwest Jiaotong University,Tangshan 063000,China)
出处
《电机与控制学报》
EI
CSCD
北大核心
2024年第6期109-119,共11页
Electric Machines and Control
基金
国家自然科学基金(52177060)。
关键词
牵引传动系统
机电耦合
同频共振
双惯量系统
边带谐波
感应电机
traction drive system
electromechanical coupling
same frequency resonance
two-mass system
sideband harmonics
induction motor
