.png){kind=icon}
返回
Improved Current Reference Calculation for MMCs Internal Energy Balancing Control
.png){kind=icon}
OA
AI
DOI：10.1109/TPWRD.2021.3091013.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
The paper addresses an improved inner current reference calculation to be employed in the control of modular multilevel converters operating during either balanced or unbalanced conditions. The suggested reference calculation is derived based on the AC and DC additive and differential voltage components applied to the upper and lower arms of the converter. In addition, the impacts caused not only by the AC network's impedances but also by the MMC's arm impedances are also considered during the derivation of the AC additive current reference expressions. Another issue discussed in this article regards that singular voltage conditions, where the positive-sequence component is equal to the negative one, may occur not only in the AC network but also internally (within the converter's applied voltages). Several different inner current reference calculation methods are compared and their applicability during the former fault conditions is analyzed. The paper presents a detailed formulation of the inner current reference calculation and applies it to different unbalanced AC grid faults where it is shown that the presented approach can be potentially used to maintain the internal energy of the converter balanced during normal and fault conditions.
Keyword:
Additives
Voltage control
Power quality
Impedance
Legged locomotion
Current control
Capacitors
Modular multilevel converter (MMC)
unbalanced voltage conditions
internal energy balancing
reference calculation
期刊
IF:
3.7
论文数:
9.1K
被引数:
2.2W
机构
引用论文
Pharmacokinetics of intravenous pentosan polysulphate (HOE/BAY 946) in HIV-positive patients.png)
AIDS
AIDSIF0
PREAI
分享收藏
Arm Current Balancing Control for Modular Multilevel Converters Under Unbalanced Grid Conditions
PREAI
分享收藏
查看更多内容