Analysis and Reduction Method of MMC Capacitor Voltage Ripple Operation Boundary based on Circulating-Current Control

被引：0

作者：

Li, Xiaoqian ^{[1
]}

Meng, Jingwei ^{[1
]}

Song, Qiang ^{[1
]}

Liu, Wenhua ^{[1
]}

Xu, Shukai ^{[2
]}

Zhu, Zhe ^{[2
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing, Peoples R China

[2] China Southern Power Grid, Elect Power Res Inst, Guangzhou, Guangdong, Peoples R China

来源：

2018 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2018年

基金：

美国国家科学基金会;

关键词：

circulating current control; capacitor voltage ripple reduction; modular multilevel converter; operation boundary analysis;

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：

Sub-module capacitors of modular multilevel converter (MMC) have critical impact on the cost and size of MMC. Circulating current control is an effective method to suppress capacitor voltage ripple. The existing analytical method is not sufficient enough to figure out accurate analytical relation between MMC operation boundaries and circulating current control. Therefore, this paper proposes an operation boundary analysis method which considers the impact of circulating-current control, and accordingly proposed a capacitor voltage ripple reduction control strategy, which can directly regulate the capacitor voltage ripple boundary through circulating-current control. Experimental results are presented to verify the validation of the proposed analysis method and control strategy.

引用

页码：3038 / 3043

页数：6

共 12 条

[1] Dynamic Interactions of the MMC-HVDC Grid and its Host AC System Due to AC-Side Disturbances [J].

Ajaei, Firouz Badrkhani ;

Iravani, Reza .

IEEE TRANSACTIONS ON POWER DELIVERY, 2016, 31 (03) :1289-1298

[2] Operation, Control, and Applications of the Modular Multilevel Converter: A Review [J].

Debnath, Suman ;

Qin, Jiangchao ;

Bahrani, Behrooz ;

Saeedifard, Maryam ;

Barbosa, Peter .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2015, 30 (01) :37-53

[3] Arrester-less DC fault current limiter based on pre-charged external capacitors for half-bridge modular multilevel converters [J].

Elserougi, Ahmed A. ;

Massoud, Ahmed M. ;

Ahmed, Shehab .

IET GENERATION TRANSMISSION & DISTRIBUTION, 2017, 11 (01) :93-101

[4]

Engel S.P., 2011, Power Electronics and Applications (EPE 2011), Proceedings of the 2011-14th European Conference on, P1

[5] Dynamic Analysis of Modular Multilevel Converters [J].

Harnefors, Lennart ;

Antonopoulos, Antonios ;

Norrga, Staffan ;

Angquist, Lennart ;

Nee, Hans-Peter .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2013, 60 (07) :2526-2537

[6] A Repetitive Control Scheme for Harmonic Suppression of Circulating Current in Modular Multilevel Converters [J].

He, Liqun ;

Zhang, Kai ;

Xiong, Jian ;

Fan, Shengfang .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2015, 30 (01) :471-481

[7]

Ilves K, 2011, IEEE IND ELEC, P4403, DOI 10.1109/IECON.2011.6120033

[8] Offshore Wind Farm Modeling Accuracy and Efficiency in MMC-Based Multiterminal HVDC Connection [J].

Karaagac, U. ;

Mahseredjian, J. ;

Cai, L. ;

Saad, H. .

IEEE TRANSACTIONS ON POWER DELIVERY, 2017, 32 (02) :617-627

[9] Performance Analysis and Optimization of Circulating Current Control for Modular Multilevel Converter [J].

Li, Xiaoqian ;

Song, Qiang ;

Liu, Wenhua ;

Xu, Shukai ;

Zhu, Zhe ;

Li, Xiaolin .

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, 2016, 63 (02) :716-727

[10]

Picas R., 2011, P IEEE EN CONV C EXP, P4985

← 1 2 →