MMC型STATCOM子模块电容电压的自适应优化平衡控制

电气工程学报 ›› 2015, Vol. 10 ›› Issue (8): 80-85.

• 工程技术 • 上一篇

MMC型STATCOM子模块电容电压的自适应优化平衡控制

邹积勇,黄秋燕,杨志,杨立军

威凡智能电气高科技有限公司镇江 212132

收稿日期:2015-05-10 出版日期:2015-08-25 发布日期:2015-08-25
作者简介:邹积勇男 1980年生,博士,高级工程师,研究方向为电力电子功率拓扑,电能质量优化治理装置系统研发。|黄秋燕女 1986年生,硕士,工程师,研究方向为电力系统仿真,电力电子控制技术。

Self-Adaptive Control of the Sub-Module Voltage for STATCOM Based on Modular Multilevel Converter

Zou Jiyong,Huang Qiuyan,Yang Zhi,Yang Lijun

Weifan Intelligent Electrical High-Tech Co. Ltd Zhenjiang 212132 China

Received:2015-05-10 Online:2015-08-25 Published:2015-08-25

摘要/Abstract

摘要：

对模块化多电平变换器（Modular Multilevel Converter,MMC）子单元模块电容电压的谐波特性进行理论分析,并给出电容值选型的计算方法。针对传统的基于CSPWM分级电容电压平衡控制和基于NLM排序电容电压平衡控制,提出了一种适合MMC型STATCOM的自适应电容电压优化平衡控制策略,将平衡控制的重点放在如何选择最优控制器上。使用Matlab/Simulink对自适应优化控制策略进行仿真,同时搭建3kvar的实验平台,仿真及实验结果一致,结果均表明该优化平衡控制策略与传统方法相比,可以在不增加电容电压波动的前提下,降低器件的开关频率,并显著提高电容电压的响应速度。

关键词: 模块化多电平变换器, STATCOM, 自适应优化平衡控制

Abstract:

The harmonic characteristic of sub-module capacitor voltage in modular multilevel converter is analyzed. Based on the result of theoretical analysis, the principle and calculation method for the selection of sub-module capacitance are given. In order to solve the problem of hierarchical control strategy based on carrier shifted PWM modulation and the capacitor voltage sorting control based on nearest level modulation, a novel self-adaptive capacitor voltage balancing algorithm for STATCOM have been presented. The proposed control strategy is verified by simulation Matlab/Simulink, and the results show that this balancing algorithm can achieve low switching losses, fast DC voltage response speed and good dynamic performance.

Key words: Modular multilevel converter, STATCOM, self-adaptive control

中图分类号:

TM46

邹积勇,黄秋燕,杨志,杨立军. MMC型STATCOM子模块电容电压的自适应优化平衡控制[J]. 电气工程学报, 2015, 10(8): 80-85.

Zou Jiyong,Huang Qiuyan,Yang Zhi,Yang Lijun. Self-Adaptive Control of the Sub-Module Voltage for STATCOM Based on Modular Multilevel Converter[J]. Journal of Electrical Engineering, 2015, 10(8): 80-85.

图/表 11

图1

图2

图3

表1

图4

图5

图6

图7

表2

图8

图9

参考文献 11

[1]	杨晓峰, 范文宝, 王晓鹏 , 等. 基于模块组合多电平变换器的STATCOM及其控制[J]. 电工技术学报, 2011,26(8):7-13.
	Yang Xiaofeng, Fan Wenbao, Wang Xiaopeng , et al. Static synchronous compensator based on modular multilevel converter based STATCOM and its control[J]. Transactions of China Electrotechnical Society, 2011,26(8):7-13.
[2]	Vivas J H, Bergna G, Boyra M . Comparison of multilevel converter-based STATCOMs[J]. 14th European Conference on Power Electronics and Applications, 2011: 1-10.
[3]	Adam G P, Anaya Lara O, Burt G , et al. Transformerless STATCOM based on a five-level modular multilevel converters[C]. 13th European Conference on Power Electronics and Applications, 2009: 1-10.
[4]	Tu Qingrui, Xu Zheng, Xu Lie . Reduced switching-frequency modulation and circulating current suppression for modular multilevel converters[J]. IEEE Transactions on Power Delivery, 2011,26(3):2009-2017. doi: 10.1109/TPWRD.2011.2115258
[5]	管敏渊, 徐政 . MMC型VSC-HVDC系统电容电压的优化平衡控制[J]. 中国电机工程学报, 2011,31(12):9-14.
	Guan Minyuan, Xu Zheng . Optimized capacitor voltage balancing control for modular multilevel converter based VSC-HVDC system[J]. Proceedings of the CSEE, 2011,31(12):9-14.
[6]	Makoto Hagiwara, Hirofumi Akagi . Control and experiment of pulse width modulated modular multilevel converters[J]. IEEE Transactions on Power Electronics, 2009,24(7):1737-1746. doi: 10.1109/TPEL.2009.2014236
[7]	Hagiwara M, Maeda R, Akagi H . Theoretical analysis and control of the modular multilevel cascade converter based on double-star chopper-cells (MMCC-DSCC)[C]. International Power Electronics Conference (IPEC), 2010: 2029-2036.
[8]	Hagiwara M, Maeda R, Akagi H . Control and analysis of the modular multilevel cascade converter based on double-star chopper-cells (MMCC-DSCC) [J]. IEEE Transactions on Power Electronics, 2011, 26(6)(s):1649-1658. doi: 10.1109/TPEL.2010.2089065
[9]	Rodriguez J, Moran L . A vector control technique for medium-voltage multilevel inverters[J]. IEEE Transactions on Industrial Electronics, 2002,49(4):882-888. doi: 10.1109/TIE.2002.801235
[10]	管敏渊, 徐政, 潘伟勇 , 等. 最近电平逼近调制的基波谐波特性解析计算[J]. 高电压技术, 2010,36(5):1327-1331.
	Guan Minyuan, Xu Zheng, Pan Weiyong , et al. Analytical calculation of fundamental wave and harmonic characteristics for nearest level modulation[J]. High Voltage Engineering, 2010,36(5):1327-1331.
[11]	王姗姗, 周孝信, 汤广福 , 等. 模块化多电平HVDC输电系统子模块电容值的选取和计算[J]. 电网技术, 2011,35(1):26-32.
	Wang Shanshan, Zhou Xiaoxin, Tang Guangfu , et al. Selection and caclation for sub-module capacitance in modular multi-level converter HVDC power transmission system[J]. Power System Technology, 2011,35(1):26-32.

参数	数值
额定输出功率P /MW	1
直流电容容值C /μF	2 500
三角载波频率f_c/Hz	1 000
公共母线电压(V_dc= 2V_d) /V	12 000
电容电压初始值V_C_{_}_I_nit /V	12 000/4 = 3 000

参数	数值
三相电网电压V /V	220V/50Hz
额定功率P /kvar	±3
桥臂串联电感L /mH	8
子模块直流侧电容C /μF	470
三角载波频率f /kHz	5

MMC型STATCOM子模块电容电压的自适应优化平衡控制

Self-Adaptive Control of the Sub-Module Voltage for STATCOM Based on Modular Multilevel Converter

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 11

参考文献 11

相关文章 1

编辑推荐

Metrics

本文评价