【摘要】 分析了混合动力车双向DC/DC变换器及其PI双闭环控制,利用方波PWM对蓄电池充、放电过程进行控制。阐述了作为电力驱动电机的交流同步电动机PMSM的结构及特点。为了解耦转速,构成了双闭环SVPWM控制,给出了空间矢量正、反变换系统控制框图。进行了实验验证,得出结论:该方案是行之有效的,系统稳定,抗干扰能力强,逆变波形正确。更多还原

【Abstract】 The paper analyzes the bi-directoinal DC / DC converter of the hybrid electric vehicle and its PI double closed-loop control,using the square-wave PWM to control the charging and discharging process of the storage battery. The paper describes the structure and characteristics of AC synchronous motor PMSM of electric motor. To decouple rotating speed,double closed loop SVPWM control is made to get the control block diagram of the space vector positive and negative transformation system. Through test verification,it’s concluded that the scheme is feasible,with a stable system,high anti-interference capability,and correct inverter waveform.更多还原