一种新型多电平逆变器及其模块化分析

doi:10.19595/j.cnki.1000-6753.tces.211002

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (3521 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to improve the problems of the large number of active components and the complex expansion structure of the traditional multilevel inverter, this paper proposes a multilevel inverter that reduces the number of components and can be modularly expanded. The inverter is composed of a voltage divider capacitor unit, a switched capacitor unit and two half bridges. It uses 1 DC power supply, 4 capacitors, 8 switches and 2 diodes to achieve double voltage gain and a nine-level AC output voltage. Two half-bridges are used in the proposed inverter instead of the back-end H-bridge to convert the output voltage polarity, which can effectively reduce the total voltage stress of the switches. In the modular expansion structure of the proposed inverter, the step-by-step charging method of the capacitors further improves the voltage gain and the output level number. This paper includes the working states, modulation strategy, capacitance analysis, parameter calculation, and topology comparison of the proposed inverter. Finally, the feasibility of the proposed inverter and the correctness of the theoretical analysis are verified through simulation and experiment.

Key words： Inverter multilevel switched capacitor voltage self-balancing modular

Received: 07 July 2021

PACS:

TM464

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wang Yaoqiang
	Li Na
	Zhao Zhaoyang
	Chen Tianjin
	Liang Jun

Cite this article:

Wang Yaoqiang,Li Na,Zhao Zhaoyang等. A New Type of Multilevel Inverter and Its Modular Analysis[J]. Transactions of China Electrotechnical Society, 2022, 37(18): 4676-4687.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.211002 OR https://dgjsxb.ces-transaction.com/EN/Y2022/V37/I18/4676

[1] 朱泽安, 周修宁, 王旭, 等. 基于稳暂态联合仿真模拟的区域多可再生能源系统评估决策[J]. 电工技术学报, 2020, 35(13): 2780-2791.
Zhu Zean, Zhou Xiuning, Wang Xu, et al.Evaluation and decision-making of regional multi-renewable energy system based on steady-transient integrated simulation[J]. Transactions of China Electrotechnical Society, 2020, 35(13): 2780-2791.
[2] 张峰, 谢运祥, 胡炎申, 等. 临界模式混合光伏微型逆变器的特性分析[J]. 电工技术学报, 2020, 35(6): 1290-1302.
Zhang Feng, Xie Yunxiang, Hu Yanshen, et al.Characteristics analysis for a boundary conduction mode hybrid-type photovoltaic micro-inverter[J]. Transa- ctions of China Electrotechnical Society, 2020, 35(6): 1290-1302.
[3] 李伟, 王辉, 黄守道, 等. 全桥三电平DC-DC变换器优化控制策略[J]. 电工技术学报, 2021, 36(16): 3342-3353.
Li Wei, Wang Hui, Huang Shoudao, et al.Optimal control for the full-bridge three-level DC-DC con- verter[J]. Transactions of China Electrotechnical Society, 2021, 36(16): 3342-3353.
[4] 丁凯, 邹云屏, 蔡政英, 等. 一种新型单相不对称五电平逆变器[J]. 中国电机工程学报, 2004, 24(11): 116-120.
Ding Kai, Zou Yunping, Cai Zhengying, et al.A novel single-phase asymmetric 5-level inverter[J]. Proceedings of The CSEE, 2004, 24(11): 116-120.
[5] 邱继浪, 何英杰, 焦乾明, 等. 非隔离型三电平逆变器漏电流抑制与中点电位平衡控制[J]. 电力系统自动化, 2021, 45(17): 161-170.
Qiu Jilang, He Yingjie, Jiao Qianming, et al.Leakage current suppression and balance control of neutral point potential for three-level transformerless inver- ter[J]. Automation of Electric Power Systems, 2021, 45(17): 161-170.
[6] 叶满园, 任威, 李宋, 等. 基于控制载波自由度的级联H桥逆变器改进型PWM技术[J]. 电工技术学报, 2021, 36(14): 3010-3021.
Ye Manyuan, Ren Wei, Li Song, et al.Improved PWM technology of cascaded H-bridge inverter based on control of carrier degree of freedom[J]. Transa- ctions of China Electrotechnical Society, 2021, 36(14): 3010-3021.
[7] 刘庆丰, 冷朝霞. 二极管钳位型逆变器双频感应加热电源的解耦控制[J]. 中国电机工程学报, 2019, 39(6): 1783-1791, 1874.
Liu Qingfeng, Leng Zhaoxia.The decoupling control of double-frequency induction heating power supply based on diode clamped inverter[J]. Proceedings of the CSEE, 2019, 39(6): 1783-1791,1874.
[8] Abdullah R, Rahim N A, Raihan S R S, et al. Five-level diode-clamped inverter with three-level boost converter[J]. IEEE Transactions on Industrial Electronics, 2014, 61(10): 5155-5163.
[9] 庄桂元, 张兴, 刘威, 等. 带飞跨电容的三电平拓扑中SiC MOSFET过电压与过电流保护[J]. 电工技术学报, 2021, 36(2): 341-351.
Zhuang Guiyuan, Zhang Xing, Liu Wei, et al.Over- voltage and overcurrent protection of SiC MOSFET in three-level topology with flying capacitor[J]. Transa- ctions of China Electrotechnical Society, 2021, 36(2): 341-351.
[10] He Liangzong, Cheng Chen.A flying-capacitor- clamped five-level inverter based on bridge modular switched-capacitor topology[J]. IEEE Transactions on Industrial Electronics, 2016, 63(12): 7814-7822.
[11] 林先辉, 郭谋发, 张伟骏, 等. 用于配电网故障消弧的级联H桥多电平变换器设计及仿真[J]. 电气技术, 2015, 16(12):10-14, 21.
Lin Xianhui, Guo Moufa, Zhang Weijun, et al.Design and simulation of cascaded H-bridge multilevel converters used for faults arc extinguishing of distribution networks[J]. Electrical Engineering, 2015, 16(12): 10-14, 21.
[12] 叶满园, 康力璇, 陈乐, 等. 级联多电平逆变器优化调制策略[J]. 高电压技术, 2019, 45(11): 3612-3619.
Ye Manyuan, Kang Lixuan, Chen Le, et al.Opti- mization of modulation strategy for cascaded multi- level inverter[J]. High Voltage Engineering, 2019, 45(11): 3612-3619.
[13] Hinago Y, Koizumi H.A switched-capacitor inverter using series/parallel conversion with inductive load[J]. IEEE Transactions on Industrial Electronics, 2012, 59(2): 878-887.
[14] Ye Yuanmao, Cheng K W E, Liu Junfeng, et al. A step-up switched-capacitor multilevel inverter with self-voltage balancing[J]. IEEE Transactions on Industrial Electronics, 2014, 61(12): 6672-6680.
[15] Barzegarkhoo R, Kojabadi H M, Zamiry E, et al.Generalized structure for a single phase switched- capacitor multilevel inverter using a new multiple DC link producer with reduced number of switches[J]. IEEE Transactions on Power Electronics, 2016, 31(8): 5604-5617.
[16] 王要强, 王凯歌, 周成龙, 等. 单相中点箝位开关电容多电平逆变器及其控制[J]. 电力自动化设备, 2020, 40(7): 89-95.
Wang Yaoqiang, Wang Kaige, Zhou Chenglong, et al.Single phase neutral-point-clamped switched-capacitor multilevel inverter and its control[J]. Electric Power Automation Equipment, 2020, 40(7): 89-95.
[17] Taghvaie A, Adabi J, Rezanejad M.A self-balanced step-up multilevel inverter based on switched-capacitor structure[J]. IEEE Transactions on Power Electronics, 2018, 33(1): 199-209.
[18] Samizadeh M, Yang Xu, Karami B, et al.A new topology of switched-capacitor multilevel inverter with eliminating leakage current[J]. IEEE Access, 2020, 8: 76951-76965.
[19] Siddique M D, Mekhilef S, Mohamed Shah N, et al.A new switched-capacitor based Boost multilevel inverter topology with higher voltage gain[J]. IET Power Electronics, 2020, 13(14): 3209-3212.
[20] Zhu Xiaonan, Wang Hongliang, Zhang Wenyuan, et al.A novel single-phase five-level transformer-less photovoltaic (PV) inverter[J]. CES Transactions on Electrical Machines and Systems, 2020, 4(4): 329-338.
[21] 管月, 李磊, 张晋川. 适合高输入电压的高频隔离逆变器[J]. 电力系统自动化, 2020, 44(11): 163-170.
Guan Yue, Li Lei, Zhang Jinchuan.High-frequency isolated inverter for high input voltage[J]. Auto- mation of Electric Power Systems, 2020, 44(11): 163-170.
[22] 吴学智, 刘亚东, 黄立培. 三电平电压型逆变器空间矢量调制算法的研究[J]. 电工电能新技术, 2002, 21(4): 16-19.
Wu Xuezhi, Liu Yadong, Huang Lipei.Research on space vector modulation algorithm for three-level PWM voltage source inverter[J]. Advanced Techno- logy of Electrical Engineering and Energy, 2002, 21(4): 16-19.
[23] McGrath B P, Holmes D G. Multicarrier PWM strategies for multilevel inverters[J]. IEEE Transa- ctions on Industrial Electronics, 2002, 49(4): 858-867.
[24] 叶满园, 吴韩. 混合CHB逆变器优化调制策略的研究[J]. 电力电子技术, 2019, 53(9): 95-98.
Ye Manyuan, Wu Han.Research on hybrid CHB inverter optimization modulation method[J]. Power Electronics, 2019, 53(9): 95-98.
[25] 杨克虎, 唐欣, 张奇, 等. 阶梯波多电平变换器特定谐波消除的完全解[J]. 电机与控制学报, 2017, 21(2): 27-34.
Yang Kehu, Tang Xin, Zhang Qi, et al.Complete solutions for selective harmonic elimination problem of multilevel staircase converter[J]. Electric Machines and Control, 2017, 21(2): 27-34.