|
|
Multi-Dimensional Modulation for Cascaded H-Bridge Rectifier Based on Two-Dimensional Modulation |
Zhang Guopeng1, Jia Zan1, Tao Haijun1, Zheng Zheng1, Wang Cong2 |
1. School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 China; 2. School of Mechanical Electrical &Information Engineering China University of Mining & Technology Beijing 100083 China; |
|
|
Abstract As a rectification stage for emerging medium and high voltage power electronic converters,Cascaded H bridge rectifier (CHBR) is the key to the realization of active distribution network interface converters and chain energy storage converters. Two-dimensional modulation (TDM) has apparent advantages in optimizing the DC-bridge voltage balance speed of the two bridges and improving the unbalanced load capacity of the DC bus. However, as the number of cascades increases, the number of degrees of multidimensional modulation increases dramatically, and optimization becomes exceptionally complicated. Based on the two-dimensional voltage balance modulation, a multi-dimensional extended modulation strategy is proposed, and the modulation logic of the extended strategy is simplified so that the two-dimensional voltage balance modulation can be applied to the multi-bridge cascade. After that, the inheritance of multi-dimensional extended modulation strategy to TDM degree of freedom optimization is studied, the DC voltage balance performance of the multi-dimensional extended modulation strategy and the TDM strategy and the main factors affecting the multi-dimensional extended modulation balance performance are analyzed and compared in the CHBR unity power factor operation from in theory. Finally, the experiment results from the prototype test are given, which verified the validity and superiority of the theory.
|
Received: 17 June 2019
|
|
|
|
|
[1] Xu She, Huang A Q, Burgos R.Review of solid-state transformer technologies and their application in power distribution systems[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2013, 1(3): 186-198. [2] 周柯, 葛钦, 葛平娟, 等. 不平衡负荷下输出并联型电力电子变压器的优化控制策略[J]. 电工技术学报, 2018, 33(1): 149-156. Zhou Ke, Ge Qin, Ge Pingjuan, et al.The research on the control strategy of PET under unbalanced load[J]. Transactions of China Electrotechnical Society, 2018, 33(1): 149-156. [3] Xu She, Huang A Q, Ni Xijun.Current sensorless power balance strategy for DC/DC converters in a cascaded multilevel converter based solid state transformer[J]. IEEE Transactions on Power Electronics, 2014, 29(1): 17-22. [4] Ferreira Costa L, De Carne G, Buticchi G.The smart transformer: a solid-state transformer tailored to provide ancillary services to the distribution grid[J]. IEEE Power Electronics Magazine, 2017, 4(2): 56-67. [5] Chen Hao, Divan D.Design of a 10-kV·A soft-switching solid-state transformer(S4T)[J]. IEEE Transactions on Power Electronics, 2018, 33(7): 5724-5738. [6] 吴瑕杰, 熊成林, 冯晓云. 一种适用于单相级联H桥型变换器的通用型多电平空间矢量PWM算法[J]. 电工技术学报, 2017, 32(14): 127-136. Wu Xiajie, Xiong Chenglin, Feng Xiaoyun.An universal multilevel space vector pulse-width modulation algorithm for single-phase cascaded H-bridge converter[J]. Transactions of China Electrotechnical Society, 2017, 32(14): 127-136. [7] Kim S, Lee J, Lee K.A modified level-shifted PWM strategy for fault-tolerant cascaded multilevel inverters with improved power distribution[J]. IEEE Transactions on Industrial Electronics, 2016, 63(11): 7264-7274. [8] Moeini A, Zhao Hui, Wang Shuo.Improve control to output dynamic response and extend modulation index range with hybrid selective harmonic current mitigation-PWM and phase-shift PWM for four-quadrant cascaded H-bridge converters[J]. IEEE Transactions on Industrial Electronics, 2017, 64(9): 6854-6863. [9] 何英杰, 付亚斌, 段文岩. 一种星接H 桥级联型SVG 直流侧电压均衡控制方法研究[J]. 电工技术学报, 2016, 31(11): 13-21. He Yingjie, Fu Yabin, Duan Wenyan.Research on DC voltage balancing control method of star connection cascaded H bridge static var generator[J]. Transactions of China Electrotechnical Society, 2016, 31(11): 13-21. [10] 耿俊成, 刘文华, 袁志昌. 链式STATCOM电容电压不平衡现象研究(一)仿真和试验[J]. 电力系统自动化, 2003, 27(16): 53-57, 86. Geng Juncheng, Liu Wenhua, Yuan Zhichang.Research on voltage unbalance of chain statcom capacitor (I) simulation and test[J]. Automation of Electric Power Systems, 2003, 27(16): 53-57, 86. [11] 耿俊成, 刘文华, 袁志昌. 链式STATCOM电容电压不平衡现象研究(二)数学模型[J]. 电力系统自动化, 2003, 27(17): 35-39. Geng Juncheng, Liu Wenhua, Yuan Zhichang.Research on voltage unbalance of chain STATCOM capacitor (Ⅱ) mathematical model[J]. Automation of Electric Power Systems, 2003, 27(17): 35-39. [12] Ge Baoming, Liu Yushan, Abu-Rub H, et al.State-of-charge balancing control for a battery energy stored quasi Z source cascaded multilevel inverter based photovoltaic power system[J]. IEEE Transactions on Industrial Electronics, 2018, 65(3): 2268-2279. [13] Bifaretti S, Zanchetta P, Watson A, et al.Advanced power electronic conversion and control system for universal and flexible power management[J]. IEEE Transactions on Smart Grid, 2011, 2(2): 231-243. [14] 葛俊杰, 赵争鸣. 级联型电压自平衡固态变压器[J].清华大学学报: 自然科学版, 2013, 53(4): 459-464. Ge Junjie, Zhao Zhengming.Cascaded voltage self-balancing solid state teansformer[J]. Journal of Tsinghua University: Science&Technology, 2013, 53(4): 459-464. [15] Wang Liang, Zhang Donglai, Wang Yi, et al.Power and voltage balance control of a novel three-phase solid-state transformer using multilevel cascaded H-bridge inverters for microgrid applications[J]. IEEE Transactions on Power Electronics, 2016, 31(4): 3289-3301. [16] Zhao Tiefu, Wang Gangyao, Bhattacharya S, et al.Voltage and power balance control for a cascaded H-bridge converter-based solid-state transformer[J]. IEEE Transactions on Power Electronics, 2013, 28(4): 1523-1532. [17] She Xu, Huang A Q, Wang Gangyao.3-D space modulation with voltage balancing capability for a cascaded seven-level converter in a solid-state transformer[J]. IEEE Transactions on Power Electronics, 2011, 26(12): 3778-3789. [18] Lin B R, Lu H H.New multilevel rectifier based on series connection of H-bridge cell[J]. IEE Proceedings-Electric Power Applications, 2000, 147(4): 304-312. [19] Iman-Eini H, Schanen J, Farhangi S.A modular strategy for control and voltage balancing of cascaded H-bridge rectifiers[J]. IEEE Transactions on Power Electronics, 2008, 23(5): 2428-2442. [20] 王聪, 张国澎, 王俊, 等. 一种适用于级联H桥整流直流侧电容电压快速平衡的新型调制方法[J]. 电工技术学报, 2013, 28(8): 120-127. Wang Cong, Zhang Guopeng, Wang Jun, et al.A novel modulation method for fast balancing DC-link capacitor voltages of cascaded H-bridge rectifier[J]. Transactions of China Electrotechnical Society, 2013, 28(8): 120-127. [21] Liang Weihua, Liu Yushan, Ge Baoming, et al.DC-link voltage balance control strategy based on multidimensional modulation technique for quasi-Z-source cascaded multilevel inverter photovoltaic power system[J]. IEEE Transactions on Industrial Informatics, 2018, 14(11): 4905-4915. [22] Leon J I, Vazquez S, Portillo R, et al.Two-dimensional modulation technique for multilevel cascaded H-bridge converters[C]//IEEE International Conference on Industrial Technology, Gippsland, VIC, Australia, 2009: 1-6. [23] Napoles J, Leon J I, Franquelo L G, et al.Multidimensional modulation technique for cascaded multilevel converters[J]. IEEE Transactions on Industrial Electronics, 2011, 58(2): 412-420. [24] 高吉磊, 林飞, 郑琼林. 基于网压预测的单相 PWM 整流器比例谐振控制[J]. 电工技术学报, 2011, 26(5): 45-51. Gao Jilei, Lin Fei, Zheng Qionglin.Proportional-resonant control of single-phase PWM rectifiers based on grid voltage prediction[J]. Transactions of China Electrotechnical Society, 2011, 26(5): 45-51. |
|
|
|