In this article, an event-triggered active disturbance rejection control (ET-ADRC) method is designed for the battery-supercapacitor hybrid energy storage system (HESS) in electric vehicles (EVs). The proposed method combines the advantages of the ADRC method and the ET mechanism. It inherits the fast response from the ADRC-based control module, which has an inner proportional–integral (PI) current loop and an outer ADRC voltage loop. To improve the computational efficiency, an ET control module is adopted by utilizing the system state information at the last triggering and current sampling time. When the state error exceeds the preset range, the ADRC-based control module is triggered and the control signals are updated; otherwise, the ADRC-based control module is halted with unchanged control signals. A series of simulation cases have been conducted for the verification of the response speed and computational efficiency of the proposed method. A scaled-down hardware platform is set up to carry on the experiments. The experimental results demonstrate that under the similar voltage ripples (VRs), the proposed ET-ADRC method responses faster than the conventional PI method and reduces the computational burden to almost 60% of the original ADRC method.

中文翻译：

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电动汽车混合储能系统事件触发有源抗扰控制


在本文中，为电动汽车（EV）中的电池-超级电容器混合储能系统（HESS）设计了一种事件触发的自抗扰控制（ET-ADRC）方法。该方法结合了ADRC方法和ET机制的优点。它继承了基于 ADRC 的控制模块的快速响应，该模块具有内部比例积分 (PI) 电流环路和外部 ADRC 电压环路。为了提高计算效率，利用上次触发时的系统状态信息和当前采样时的系统状态信息，采用ET控制模块。当状态误差超出预设范围时，触发基于ADRC的控制模块，更新控制信号；否则，基于 ADRC 的控制模块将停止，且控制信号不变。通过一系列仿真案例验证了该方法的响应速度和计算效率。搭建了缩小比例的硬件平台进行实验。实验结果表明，在相似的电压纹波（VR）下，所提出的ET-ADRC方法比传统的PI方法响应更快，并将计算负担减少到原始ADRC方法的近60%。