RESEARCH ON A HYBRID CASCADE NINE-LEVEL INVERTER AND ITS MODULATION STRATEGY

Zhu Yifeng; Zhou Feishan; Jia Xiaolei; Zhang Ziyang; Li Yan

doi:10.19912/j.0254-0096.tynxb.2023-1266

PDF(2301 KB)

Acta Energiae Solaris Sinica ›› 2024, Vol. 45 ›› Issue (12) : 115-122. DOI: 10.19912/j.0254-0096.tynxb.2023-1266

RESEARCH ON A HYBRID CASCADE NINE-LEVEL INVERTER AND ITS MODULATION STRATEGY

Zhu Yifeng^1,2, Zhou Feishan^1,2, Jia Xiaolei^1,2, Zhang Ziyang³, Li Yan^1,2

Author information +

History +

Abstract

In order to solve the problem of power backflow in the traditional 1∶; 3 hybrid cascaded inverter, a hybrid cascaded nine-level inverter topology with coupled inductor is constructed based on the five-level rectifier. Firstly, by reconstructing the modulation wave, a hybrid modulation strategy is proposed, which combines the step wave modulation with the high frequency modulation to achieve the power balance of the two-stage unit in the partial modulation range. At the same time, through in-depth analysis of the relationship between modulation and output power, the range of step wave modulation and high frequency modulation is adjusted, and the output power balance of the two-stage unit in a wider modulation range is realized. The simulation and experimental results verify the feasibility and superiority of the constructed inverter topology and modulation strategy.

Key words

hybrid cascade / hybrid modulation / power balance / power backflow / multi-level inverter

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Zhu Yifeng, Zhou Feishan, Jia Xiaolei, Zhang Ziyang, Li Yan. RESEARCH ON A HYBRID CASCADE NINE-LEVEL INVERTER AND ITS MODULATION STRATEGY[J]. Acta Energiae Solaris Sinica. 2024, 45(12): 115-122 https://doi.org/10.19912/j.0254-0096.tynxb.2023-1266

References

[1] 李涛, 程启明, 程尹曼, 等. 基于无源E-L模型的五电平逆变器并网控制策略[J]. 高电压技术, 2019, 45(6): 1819-1826.
LI T, CHENG Q M, CHENG Y M, et al.Control strategy of five-level grid-connected inverter based on passive E-L model[J]. High voltage engineering, 2019, 45(6): 1819-1826.
[2] 郭小强, 吴卓群, 骆然, 等. 高可靠性非隔离型五电平并网逆变器拓扑与控制[J]. 电力系统自动化, 2022, 46(5): 151-158.
GUO X Q, WU Z Q, LUO R, et al.Topology and control of five-level transformerless grid-connected inverter with high reliability[J]. Automation of electric power systems, 2022, 46(5): 151-158.
[3] KHOUCHA F, LAGOUN S M, MAROUANI K, et al.Hybrid cascaded H-bridge multilevel-inverter induction-motor-drive direct torque control for automotive applications[J]. IEEE transactions on industrial electronics, 2010, 57(3): 892-899.
[4] 胡文华, 刘剑锋, 曹仁赢. 混合级联H桥逆变器的倍频调制及功率平衡方法[J]. 太阳能学报, 2021, 42(8): 77-83.
HU W H, LIU J F, CAO R Y.Double-frequency modulation and power balance method for hybrid cascaded h-bridge inverter[J]. Acta energiae solaris sinica, 2021, 42(8): 77-83.
[5] 赵鲁, 李耀华, 葛琼璇, 等. 特定谐波消除及优化脉宽调制单相整流器的研究[J]. 电工技术学报, 2014, 29(10): 57-64.
ZHAO L, LI Y H, GE Q X, et al.Study of selective harmonic elimination and optimization pulse width modulation single-phase rectifier[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 57-64.
[6] 王付胜, 戴之强, 王佳宁, 等. 一种基于级联H桥光伏并网逆变器的变移相角载波移相调制策略[J]. 太阳能学报, 2020, 41(8): 144-150.
WANG F S, DAI Z Q, WANG J N, et al.A variable-angle phase-shifted pwm strategy for cascaded H-bridge photovoltaic grid-connected inverter[J]. Acta energiae solaris sinica, 2020, 41(8): 144-150.
[7] JAVIER P R, BERISTAIN J JOSE A, HERNÁNDEZ L JESÚS H, et al. Hybrid modulation strategy for asymmetrical cascade H-bridge multilevel inverters[J]. IEEE Latin America transactions, 2018, 16(6): 1623-1630.
[8] 叶满园, 童子威, 陈子豪, 等. 改进的新型Ⅱ型不对称CHB逆变器调制策略[J]. 高电压技术, 2021, 47(6): 2186-2194.
YE M Y, TONG Z W, CHEN Z H, et al.Modified new modulation strategy of type Ⅱ asymmetric hybrid CHB inverter[J]. High voltage engineering, 2021, 47(6): 2186-2194.
[9] MHIESAN H, WEI Y Q, SIWAKOTI Y P, et al.A fault-tolerant hybrid cascaded H-bridge multilevel inverter[J]. IEEE transactions on power electronics, 2020, 35(12): 12702-12715.
[10] 朱艺锋, 岳豪, 赵海龙, 等. 含耦合电感的四管五电平整流器模型预测控制[J]. 电网技术, 2021, 45(2): 768-775.
ZHU Y F, YUE H, ZHAO H L, et al.Model predictive control of four-tube five-level rectifier with coupled inductors[J]. Power system technology, 2021, 45(2): 768-775.
[11] 杜少通, 刘杰, 周娟, 等. 一种基于NPC和H桥混合级联的6 kV静止无功发生器[J]. 电网技术, 2022, 46(12): 5012-5020.
DU S T, LIU J, ZHOU J, et al.A 6 kV hybrid cascade static var generator using NPC and H-bridge[J]. Power system technology, 2022, 46(12): 5012-5020.
[12] 陈仲, 许亚明, 刘亚云, 等. 不对称两单元H桥级联逆变器的混合载波PWM方法[J]. 中国电机工程学报, 2016, 36(20): 5584-5593.
CHEN Z, XU Y M, LIU Y Y, et al.A PWM method based on the hybrid carriers for an asymmetric inverter with two cascaded H-bridge cells[J]. Proceedings of the CSEE, 2016, 36(20): 5584-5593.
[13] 顾军, 宋飞, 李平, 等. 混合级联H桥逆变器的调制策略优化方法[J]. 高电压技术, 2022, 48(2): 753-761.
GU J, SONG F, LI P, et al.Modulation strategy optimization method of hybrid cascaded H-bridge inverter[J]. High voltage engineering, 2022, 48(2): 753-761.
[14] 叶满园, 李宋. 混合级联多电平逆变器的改进混合调制技术[J]. 电机与控制学报, 2015, 19(11): 39-44.
YE M Y, LI S.Improved hybrid modulation technique for hybrid cascade multi-level inverter[J]. Electric machines and control, 2015, 19(11): 39-44.
[15] 胡文华, 喻正炎, 邢瑞新, 等. 混合十三电平逆变器的倍频调制及功率均衡方法[J]. 高电压技术, 2022, 48(12): 4968-4976.
HU W H, YU Z Y, XING R X, et al.Double frequency modulation and power balance method for hybrid 13-level inverter[J]. High voltage engineering, 2022, 48(12): 4968-4976.