In order to enhance the DC side performance of AC-DC hybrid microgrid,a DC hierarchical control system is proposed in this paper.To meet the requirement of DC load sharing between the parallel power interfaces,droop method is adopted.Meanwhile,DC voltage secondary control is employed to restore the deviation in the DC bus voltage.The hierarchical control system is composed of two levels.DC voltage and AC current controllers are achieved in the primary control level.
|Bidragets oversatte titel||DC Hierarchical Control System for Microgrid Applications|
|Tidsskrift||Diangong Jishu Xuebao|
|Status||Udgivet - 1 apr. 2013|