针对电压变换和外部条件等因素引起三相脉宽调制（Pulse Width Modulation，PWM）整流器工作异常的问题，提出了一种基于等价输入干扰(Equivalent-Input-Disturbance， EID)误差估计的自抗扰控制(Active Disturbance Rejection Control， ADRC)和新型终端模糊滑模电流控制的控制策略。通过对PWM整流器系统的欠驱动特性分析，构建了基于等价输入干扰误差估计的新型终端模糊滑模控制的电流环控制器和基于等价输入干扰误差估计的自抗扰控制的电压环控制器的双闭环结构控制器。通过对滑模控制中存在的电流抖振和负序电流问题进行误差估计，提高控制器精度，优化控制效果。抑制电压环控制器系统谐波量，提升电压的响应速率，确保PWM整流器在干扰情况下的稳定工作。最后通过仿真实验进行分析，验证了所提控制策略的有效性与优越性。

Aiming at the problem of abnormal operation of three-phase pulse width modulation rectifier caused by factors such as voltage transformation and external conditions, a control strategy of active disturbance rejection control based on equivalent input disturbance error estimation and a new terminal fuzzy sliding mode current control is proposed. By analyzing the under-actuated characteristics of the PWM rectifier system, a new terminal fuzzy sliding mode control current loop controller based on equivalent input disturbance error estimation and an active disturbance rejection control voltage loop controller based on equivalent input disturbance error estimation are constructed. Double closed-loop structure controller. By estimating the error of current chattering and negative sequence current in sliding mode control, the accuracy of the controller is improved and the control effect is optimized. Suppress the harmonic of the voltage loop controller system, improve the response rate of the voltage, and ensure the stable operation of the PWM rectifier under interference. Finally, the effectiveness and superiority of the proposed control strategy are verified by simulation experiments.