Medium-Voltage DC Grid Connection Using Modular Multilevel Converter

被引：0
|
作者：
Jafarishiadeh, Seyyedmahdi [1 ]
Farasat, Mehdi [1 ]
Sadigh, Arash Khoshkbar [2 ]
机构：
[1] Louisiana State Univ, Dept Elect & Comp Engn, Baton Rouge, LA 70803 USA
[2] Extron Elect, Anaheim, CA USA
来源：
2017 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2017年
关键词：
Modular multilevel converter; multi-terminal isolated DC/DC converter; MVDC interconnection; FAULT BLOCKING CAPABILITY; HVDC; OPERATION;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In recent years medium voltage direct-current (MVDC) grids have gained significant attention. This paper presents a new isolated modular multilevel converter (MMC)-based dc/dc converter for connecting such networks. The proposed converter can connect DC grids with different voltage levels and control power flow among them. The proposed isolated dc/dc converter has fewer components compared to conventional isolated MMC-based dc/dc converter. A major challenge in MMC-based dc/dc converters is balancing capacitor voltages in each arm and phase. To this end, a closed loop control is proposed. Simulation results using Matlab/SIMULINK is provided to demonstrate the dynamic response under step changes of reference powers.
引用
收藏
页码：2686 / 2691
页数：6
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