具有增强宽范围运行能力的多种分布式能源级联中压直流接入接口：概念与小信号分析

In this letter, the novel concept of cascaded dc integration interface for multiple distributed energy resources (DERs) has been proposed for the scenario of MVdc distribution grid. The power equalizers are introduced to achieve the wide-range operation of DERs. A closed-loop small-signal modeling of the cascaded integration interface is performed with graphical method, and the corresponding contr...