Passivity-based active stabilization for DC microgrid applications

• DOI: 10.17775/cseejpes.2016.01390
• Publication Date: 2018-07-22T08:19:05Z
• Authors: Jiaqi Yu; Jingrong Yu; ; Yue Wang; ; Yijia Cao; ; Xiaonan Lu; ; Dongbo Zhao
• Keywords: Passivity; Microgrid

In this paper, an improved active stabilization strategy of the interface converters in microgrid applications is proposed on basis passivity-based stability criterion (PBSC). As a critical part AC and DC hybrid microgrids, taken as example. particular, method with proportional-integral (PI) controller firstorder high-pass filter (HPF) to meet passivity requirements overall control diagram respect output voltage. Meanwhile, current feedback loop introduced ensure impedance passivity. Moreover, small-signal model parallel converter system established comprehensively study influence parameters converters. Based study, by manipulating each converter, microgrids variable configuration can be guaranteed. Therefore, generic simplified design approach realized. A simulation three implemented MATLAB/Simulink, effectiveness algorithm verified using model.