全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

一种快速的模块化多电平换流器电压均衡控制策略

DOI: 10.13334/j.0258-8013.pcsee.2015.04.021, PP. 929-934

Keywords: 模块化多电平换流器,电压均衡,平均值比较,开关频率,最近电平控制

Full-Text   Cite this paper   Add to My Lib

Abstract:

模块化多电平换流器(modularmultilevelconverter,MMC)传统的电压均衡控制需要对电容电压排序,占用了大量计算资源。设计了一种无需排序的均衡控制策略。该策略通过比较前后控制周期中投入子模块的个数以及判断各桥臂子模块的电容电压与其平均值的偏差是否越界,来决定是否重新计算触发脉冲。选取桥臂电容电压的平均值作为基准值,各子模块由其电容电压与该基准值比较来确认投入与否:当桥臂处于充电状态时,优先投入低于基准值的子模块;当桥臂处于放电状态时,优先投入高于基准值的子模块。在PSCAD/EMTDC平台上搭建了MMC模型,对设计的均衡控制策略的有效性进行了验证。结果表明该策略可以在较低频率下实现电容电压的均衡控制。

References

[1]  徐政,陈海荣.电压源换流器型直流输电技术综述[J].高电压技术,2007,33(1):1-10. Xu Zheng,Chen Hairong.Review and applications of VSC-HVDC[J].High Voltage Engineering,2007,33(1):1-10(in Chinese).
[2]  陈海荣,徐政.向无源网络供电的VSC-HVDC系统的控制器设计[J].中国电机工程学报,2006,26(23):42-48. Chen Hairong,Xu Zheng.Control design for VSC-HVDC supplying passive network[J].Proceedings of the CSEE,2006,26(23):42-48(in Chinese).
[3]  尹明,李庚银,牛同义,等.VSC-HVDC 连续时间状态空间模型及其控制策略研究[J].中国电机工程学报,2005,25(18):34-39. Yin Ming,Li Gengyin,Niu Tongyi,et al.VSC-HVDC control strategy based on respective adjustment of active and reactive power[J].Proceedings of the CSEE,2005,25(18):34-39(in Chinese).
[4]  杨晓峰,林智钦,郑琼林,等.模块组合多电平变换器的研究综述[J].中国电机工程学报,2013,33(6):1-15. Yang Xiaofeng,Lin Zhiqin,Zheng Trillion Q,et al.A review of modular multilevel converters[J].Proceedings of the CSEE,2013,33(6):1-15(in Chinese).
[5]  潘武略,徐政,张静,等.电压源换流器型直流输电换流器损耗分析[J].中国电机工程学报,2008,28(21):7-14. Pan Wulue,Xu Zheng,Zhang Jing,et al.Dissipation analysis of VSC-HVDC converter[J].Proceedings of the CSEE,2008,28(21):7-14(in Chinese).
[6]  Hagiwara M,Akagi H.Control and experiment of pulse width-modulated modular multilevel converters[J].IEEE Transactions on Power Electronics,2009,24(7):1737-1746.
[7]  李笑倩,宋强,刘文华,等.采用载波移相调制的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2012,32(9):49-55. Li Xiaoqian,Song Qiang,Liu Wenhua,et al.Capacitor voltage balancing control by using carrier phase-shift modulation of modular multilevel converters [J].Proceedings of the CSEE,2012,32(9):49-55(in Chinese).
[8]  赵昕,赵成勇,李广凯,等.采用载波移相技术的模块化多电平换流器电容电压平衡控制[J].中国电机工程学报,2011,31(21):48-55. Zhao Xin,Zhao Chengyong,Li Guangkai,et al.Submodule capacitance voltage balancing of modular multilevel converter based on carrier phase shifted SPWM technique[J].Proceedings of the CSEE,2011,31(21):48-55(in Chinese).
[9]  管敏渊,徐政,屠卿瑞,等.模块化多电平换流器型直流输电的调制策略[J].电力系统自动化,2010,34(2):48-52. Guan Minyuan,Xu Zheng,Tu Qingrui,et al.Nearest level modulation for modular multilevel converters in HVDC tranission[J].Automation of Electric Power Systems,2010,34(2):48-52(in Chinese).
[10]  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(in Chinese).
[11]  屠卿瑞,徐政,郑翔,等.一种优化的模块化多电平换流器电压均衡控制方法[J].电工技术学报,2011(5):15-20. Tu Qingrui,Xu Zheng,Zheng Xiang,et al.An optimized voltage balancing method for modular multilevel converter[J].Transactions of China Electrotechnical Society,2011(5):15-20(in Chinese).
[12]  Akagi H,Inoue S,Yoshii T.Control and performance of a transformerless cascade PWM STATCOM with star configuration[J].IEEE Transactions on Industry Applications,2007,43(4):1041-1049.
[13]  Ilves K,Antonopoulos A,Norrga S,et al.A new modulation method for the modular multilevel converter allowing fundamental switching frequency[J].IEEE Transactions on Power Electronics,2012,27(8):3482-3494.
[14]  Franquelo L G,Rodriguez J,Leon J I,et al.The age of multilevel converters arrives[J].IEEE Industrial Electronics Magazine,2008,2(2):28-39.
[15]  Dragan Jovcic,Weixing Lin.Multiport High-Power LCL DC Hub for Use in DC Tranission Grids[J].IEEE Transactions on Power Delivery,2014,29(2):760-768.
[16]  Kouro S,Bernal R,Miranda H,et al.High-performance torque and flux control for multilevel inverter fed induction motors[J].IEEE Transactions on Power Electronics,2007,22(6):2116-2123.
[17]  Perez M,Rodriguez J,Pontt J,et al.Power distribution in hybrid multi-cell converter with nearest level modulation[C]//IEEE International Symposium on Industrial Electronics Industrial Electronics.Vigo,Spain:IEEE,2007:736-741.
[18]  Tu Qingrui,Xu Zheng.Impact of sampling frequency on harmonic distortion for modular multilevel converter [J].IEEE Transactions on Power Delivery,2011,26(1):298-306.
[19]  Ji-Woo Moon,Chun-Sung Kim,Jung-Woo Park,et al.Circulating Current Control in MMC Under the Unbalanced Voltage[J].IEEE Transactions on Power Delivery,2013,28(3):1952-1959.
[20]  Bin W.High-power converters and AC drives [M].Hoboken:IEEE Press,John Wiley & Sons,2006:325.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133