An Embedded DC Power Flow Controller Based on Full-Bridge Modular Multilevel Converter

被引：23
|
作者：
Zhang, Jianwen [1 ]
Liu, Yuwen [1 ]
Zang, Jiajie [2 ]
Liu, Zichen [1 ]
Zhou, Jianqiao [1 ]
Wang, Jiacheng [3 ]
Shi, Gang [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn, Dept Elect Engn, Key Lab Control Power Transmiss & Convers,Minist, Shanghai 200240, Peoples R China
[2] Shanghai Univ Engn Sci, Sch Elect & Elect Engn, Shanghai 201600, Peoples R China
[3] Simon Fraser Univ, Sch Mechatron Syst Engn, Surrey, BC V3T 0A3, Canada
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2024年 / 71卷 / 03期
基金：
中国国家自然科学基金;
关键词：
DC power flow controller (DCPFC); meshed flexible dc transmission system; modular multilevel converter (MMC);
D O I：
10.1109/TIE.2023.3265041
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Meshed dc grids help improve the current network's configuration, flexible power management, and reliable power supply. However, the existing power converters implemented in dc grids do not have enough controllability in adjusting each feeder's power, leading to transmission congestion, overloads, and high-power loss issues. The dc power flow controller (DCPFC) is prominent in addressing problems with a better system performance. This article proposes an embedded dc power flow controller (eDCPFC) with full-bridge modular multilevel converter (MMC) (FB-MMC) topology. The eDCPFC is directly integrated into a host MMC. The device's energy is balanced through the coordinated control of the eDCPFC and the host MMC without using isolation transformers or external power supplies. The working principle and the corresponding control strategies of the FB-MMC type eDCPFC and its host MMC are elaborated. Experimental results conducted in a scaled-down prototype validate the feasibility and effectiveness of the proposed topology and control schemes under typical working conditions.
引用
收藏
页码：2556 / 2566
页数：11
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