| Title |
Predictive Direct Power Control in MMC-HVDC System |
| DOI |
https://doi.org/10.6113/TKPE/2018.23.6.403 |
| Keywords |
MMC(Modular Multilevel Converter) ; HVDC(High Voltage Direct Current) ; DPC(Direct Power Control) ; Predictive |
| Abstract |
This study proposes a predictive direct power control method in a modular multilevel converter (MMC) high-voltage direct-current (HVDC) system. The conventional proportional integral (PI)-based control method uses a cascaded connection and requires an optimal gain selection procedure and additional decoupling scheme. However, the proposed control method has a simple structure for active/reactive power control due to the direct power control scheme and exhibits a fast dynamic response by predicting the future status of system variables and considering time delay. The effectiveness of the proposed method is verified by simulation results. |