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直流固态变压器 (DCSST) 是高压直流配网与低压直流微网互连的关键设备,为了提高输出电压的抗扰能力,提出基于自抗扰控制 (ADRC) 的输出直流电压控制方法.通过 DCSST电路模型分析进行控制器的设计,并基于线性自抗扰控制 (LADRC) 结构通过极点配置给出依赖于增益带宽的参数整定方法,并将此得到的参数应用于非线性 ADRC的状态反馈增益以及状态观测增益,可实现系统快速无超调响应.实验结果表明文中所提控制策略及ADRC参数整定方法可行,DCSST输出电压采用 ADRC 控制比采用传统 PI控制具有更快的响应速度及更强的抗扰能力.“,”In order to improve the disturbance rejection abil-ity of DC solid state transformer (DCSST)which is applied as the key connection device between high voltage DC distri-bution grid and low voltage DC microgrid,a novel control strategy based on active disturbance rejection control (AD-RC)is proposed to stabilize the DC output voltage.The con-troller is designed based on the analysis of the DCSST circuit model,the tuning method that is dependent on gain band-width is given through pole assignment based on linear active disturbance rejection control (LADRC)scenario,and ob-tained parameters are applied to state feedback gain and state observation gain of nonlinear ADRC to achieve rapid non-overshoot response of system.Experiment results show that proposed control strategy and ADRC parameter tuning method are feasible,and the DCSST output voltage achieves faster response speed and stronger disturbance rejection abil-ity than that of conventional PI control.