一种QZS-CHI的多调制波移相正弦脉宽调制方法及其输出电压分析

doi:10.19595/j.cnki.1000-6753.tces.190911

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (41106 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Quasi-Z-source cascaded H-bridge inverters (QZS-CHI) have broad application prospects in distributed generation. In the conventional modulation method, the insertion of the shoot-through state doubles the switching frequency, resulting in large switching loss. In this paper, a multi-modulation waveform phase-shifting SPWM method is proposed by inserting the shoot-through state into the switching moment, which can effectively reduce the switching loss. Since the shoot-through duty ratio is constrained by the modulation ratio, the level of the output voltage is affected. The relations of the output voltage level with the modulation ratio, the number of modules and the shoot-through duty ratio are analyzed in this paper. By constructing the simulation model and test prototype of the cascaded 6-module QZS-CHI, the modulation method and the output level analysis under open-loop conditions are verified. The experimental results show that the maximum efficiency of the proposed modulation method can reach 96.64%, which is 1.71% higher than that of the traditional modulation method.

Key words： Quasi-Z-source cascaded multilevel inverters modulation output voltage multi- module

Received: 18 July 2019

PACS:

TM464

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Wang Jian
	Zhang Rui
	Liu Yang
	Li Yuan

Cite this article:

Wang Jian,Zhang Rui,Liu Yang等. A Multi-Modulation Waveform Phase-Shift Sinusoidal Pulse Width Modulation Method of QZS-CHI and Its Output Voltage Analysis[J]. Transactions of China Electrotechnical Society, 2020, 35(16): 3470-3477.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190911 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I16/3470

[1] 李媛, 彭方正. Z源/准Z源逆变器在光伏并网系统中的电容电压恒压控制策略[J]. 电工技术学报, 2011, 26(5): 62-69.
Li Yuan, Peng Fangzheng.Constant capacitor voltage control strategy for Z-source/quasi-Z-source inverter in grid-connected photovoltaic systems[J]. Transa- ctions of China Electrotechnical Society, 2011, 26(5): 62-69.
[2] 杜春水, 刘强, 郭文君, 等. 准Z源级联多电平逆变器单元间功率平衡控制[J]. 电机与控制学报, 2019, 23(8): 19-27.
Du Chunshui, Liu Qiang, Guo Wenjun, et al.Power balance control strategy for quasi-Z-source cascaded multilevel inverter units[J]. Electric Machines and Control, 2019, 23(8): 19-27.
[3] Yuan Li, Shuai Jiang, Cintron-Rivera J G, et al. Modeling and control of quasi-Z-source inverter for distributed generation applications[J]. IEEE Transa- ctions on Industrial Electronics, 2013, 60(4): 1532-1541.
[4] 蔡春伟, 曲延滨, 盛况. 准Z源逆变器的暂态建模与分析[J]. 电机与控制学报, 2011, 15(10): 7-13.
Cai Chunwei, Qu Yanbin, Sheng Kuang.Transient modeling and analysis of quasi-Z-source-inverter[J]. Electric Machines and Control, 2011, 15(10): 7-13.
[5] 董帅, 张千帆, 王睿, 等. SVPWM控制时双向Z源逆变器电容电压纹波分析[J]. 电工技术学报, 2017, 32(24): 107-114.
Dong Shuai, Zhang Qianfan, Wang Rui, et al.Analysis of capacitor voltage ripple for bi-directional Z-source inverters based on SVPWM[J]. Transactions of China Electrotechnical Society, 2017, 32(24): 107-114.
[6] 胡斯登, 梁梓鹏, 范栋琦, 等. 基于Z源变换器的电动汽车超级电容-电池混合储能系统[J]. 电工技术学报, 2017, 32(8): 247-255.
Hu Sideng, Liang Zipeng, Fan Dongqi, et al.Imple- mentation of Z-source converter for ultracapacitor- battery hybrid energy storage system for electric vehicle[J]. Transactions of China Electrotechnical Society, 2017, 32(8): 247-255.
[7] Guo Feng, Fu Lixing, Lin C H, et al.Development of an 85kW bidirectional quasi-Z-source inverter with DC-link feed-forward compensation for electric vehicle applications[J]. IEEE Transactions on Power Elec- tronics, 2013, 28(12): 5477-5488.
[8] 薛必翠, 丁新平, 张承慧, 等. 准Z源逆变器交流调速系统及部分PAM/PWM控制策略[J]. 电工技术学报, 2012, 27(10): 142-149.
Xue Bicui, Ding Xinping, Zhang Chenghui, et al.Quasi-Z-source inverter adjustable speed drives system and its partly PAM/PWM control strategy[J]. Transactions of China Electrotechnical Society, 2012, 27(10): 142-149.
[9] 吴昊坤, 黄科元, 吕维, 等. 用于高速永磁电机的Z源逆变器直流链电压控制策略[J]. 电工技术学报, 2019, 34(1): 1-10.
Wu Haokun, Huang Keyuan, Lü Wei, et al.Z-source inverter DC-link voltage control strategy for high speed permanent magnet motor[J]. Transactions of China Electrotechnical Society, 2019, 34(1): 1-10.
[10] Zhang Yun, Shi Jilong, Zhou Lei, et al.Wide input- voltage range Boost three-level DC-DC converter with quasi-Z source for fuel cell vehicles[J]. IEEE Transactions on Power Electronics, 2017, 32(9): 6728-6738.
[11] 程启明, 李涛, 程尹曼, 等. 基于受控耗散Hamiltonian系统模型的光伏准Z源T型三电平并网逆变器控制策略[J]. 电工技术学报, 2019, 34(8): 1718-1727.
Cheng Qiming, Li Tao, Cheng Yinman, et al.Control strategy of PV quasi-Z-source T-type three-level inverter based on port controlled Hamiltonian with dissipation model[J]. Transactions of China Electro- technical Society, 2019, 34(8): 1718-1727.
[12] Abu-Rub H, Iqbal A, Ahmed S M, et al.Quasi-Z- source inverter-based photovoltaic generation system with maximum power tracking control using ANFIS[J]. IEEE Transactions on Sustainable Energy, 2013, 4(1): 11-20.
[13] Sun Dongsen, Ge Baoming, Yan Xingyu, et al.Modeling, impedance design, and efficiency analysis of quasi-Z source module in cascaded multilevel photovoltaic power system[J]. IEEE Transactions on Industrial Electronics, 2015, 61(11): 6108-6117.
[14] Liang Weihua, Liu Yushan, Ge Baoming, et al.Double-line-frequency ripple model, analysis & impedance design for energy stored single-phase quasi-Z source photovoltaic system[J]. IEEE Transa- ctions on Industrial Electronics, 2017, 65(4): 3198-3209.
[15] Zhou Yan, Liu Liming, Li Hui.A high-performance photo- voltaic module-integrated converter (MIC) based on cascaded quasi-Z-source inverters (qZSI) using eGaN FETs[J]. IEEE Transactions on Power Electronics, 2013, 28(6): 2727-2738.
[16] 孙东森. 储能型Quasi-Z源级联多电平光伏逆变器研究[D]. 北京: 北京交通大学, 2013.
[17] Liu Yushan, Ge Baoming, Abu-Rub H, et al.Over- view of space vector modulations for three-phase- source/quasi-Z-source inverters[J]. IEEE Transa- ctions on Power Electronics, 2014, 29(4): 2098-2108.
[18] 屈艾文, 陈道炼, 苏倩. 三相准Z源并网逆变器的简单升压改进空间矢量调制策略[J]. 电工技术学报, 2018, 33(4): 826-836.
Qu Aiwen, Chen Daolian, Su Qian.Simple Boost modified space vector modulation strategy for three-phase quasi-Z-source grid-connected inverter[J]. Transactions of China Electrotechnical Society, 2018, 33(4): 826-836.