一种新型飞跨电容型Zeta多电平逆变器

doi:10.19595/j.cnki.1000-6753.tces.201222

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摘要

该文提出一种新型飞跨电容型多电平逆变器,该逆变器由Zeta变换器进行演变推导而得,具有可升降压、电容可自均压、钳位器件少、拓扑延展性好等优点,克服了传统多电平逆变器在应用方面的局限性。该文首先介绍该逆变器的工作原理,并采用单极性载波相移调制策略,在不提高载波频率的基础上提高其等效开关频率,降低输出电压的总谐波畸变率。此外,对Zeta五电平逆变器的开关器件电压应力、电容自均压的实现、升降压能力和拓扑延展性能方面进行分析。所提逆变器采用PR调节器对其进行闭环控制,通过仿真对其可行性进行验证,且在理论分析和仿真证明的基础上,对Zeta五电平逆变器搭建一台实验样机,实验结果验证该理论分析及仿真结果的正确性,以及该逆变器具有良好的动静态性能。

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	王立乔
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关键词 ：多电平逆变器, Zeta变换器, 升降压, 自均压, 闭环控制

Abstract：

This paper proposes a novel flying-capacitor zeta multi-level inverter, which is derived from the evolution of the Zeta converter. The proposed inverter has the advantages of Buck-Boost, capacitor self-sharing, less clamping devices, and topological ductility, which overcomes the limitations of traditional multi-level inverters in application. Firstly, this paper introduces the operating principle of the inverter, and adopts a unipolar carrier phase-shift modulation strategy to increase the equivalent switching frequency without increasing the carrier frequency and finally reduces the total harmonic distortion of the output voltage. In addition, this paper analyzes the voltage stress of the switching devices, the realization of the capacitor self-sharing, the buck-boost capability and the topology extension performance. The proposed inverter adopts a PR controller for closed-loop control, and its feasibility is verified by simulation. In addition, on the basis of theoretical analysis and simulation verification, an experimental prototype of the proposed inverter is built. The experimental results prove the correctness of the theoretical analysis and simulation results, and verify that the inverter has good dynamic and static performance.

Key words： Multi-level inverter Zeta converter buck-boost self-equalization close loop control

收稿日期: 2020-09-18

PACS:

TM464

基金资助:

国家自然科学基金（51677162）和河北省自然科学基金（E2017203235）资助项目

通讯作者: 韩胥静女,1995年生,硕士研究生,研究方向为多电平变流器。E-mail: 1015126784@qq.com

作者简介: 王立乔男,1974年生,博士,教授,研究方向为高频功率变换、大功率变流技术、可再生能源发电及分布式发电系统。E-mail:brent@ysu.edu.cn

引用本文:

王立乔, 韩胥静, 李占一, 杨彬. 一种新型飞跨电容型Zeta多电平逆变器[J]. 电工技术学报, 2022, 37(1): 254-265. Wang Liqiao, Han Xujing, Li Zhanyi, Yang Bin. A Novel Flying-Capacitor Zeta Multi-Level Inverter. Transactions of China Electrotechnical Society, 2022, 37(1): 254-265.

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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.201222 https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I1/254

[1] Debnath S, Saeedifard M.A new hybrid multilevel converter for grid connection of large wind tur- bines[J]. IEEE Transactions on Sustainable Energy, 2013, 4(4): 1051-1064.
[2] 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.
[3] Rahaman M A, Islam M R.Performance evaluation of carrier-based modulation strategies for modular cascaded H-bridge multilevel converters[C]//2017 International Conference on Electrical, Computer and Communication Engineering (ECCE), Cox’s Bazar, Bangladesh, 2017: 533-538.
[4] 蔡智林, 林侯涛.新型Z源T型五电平逆变器及其调制策略[J]. 高电压技术, 2017, 43(4): 1203-1213.
Cai Zhilin, Lin Houtao.Novel Z-source T-type five- level inverter and its modulation strategy[J]. High Voltage Engineering, 2017, 43(4): 1203-1213.
[5] 张建忠, 胡路才, 徐帅.一种零序电压注入的T型三电平逆变器中点电位平衡控制方法[J]. 电工技术学报, 2020, 35(4): 807-816.
Zhang Jianzhong, Hu Lucai, Xu Shuai.Neutral potential balance control method of T-type three-level inverter with zero-sequence voltage injection[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 807-816.
[6] 杨国良, 张玉娜, 陈泰余, 等. 单相升降压型五电平逆变器拓扑及控制[J]. 电工技术学报, 2019, 34(14): 2922-2935.
Yang Guoliang, Zhang Yuna, Chen Taiyu, et al. Topology and control strategy of a single-phase Buck- Boost five-level inverter[J]. Transactions of China Electrotechnical Society, 2019, 34(14): 2922-2935.
[7] Robert S.A natural DC-link voltage balancing of diode-clamped inverters in parallel systems[J]. IEEE Transactions on Industrial Electronics, 2013, 60(11): 5008-5018.
[8] Yasmeena G, Tulasi R D.A structural & operational comparative study of converter topologies & analysis of MMC for high voltage applications[C]//Inter- national Conference on Circuits, Power and Com- puting Technologies (ICCPCT), India, 2015: 1-8.
[9] 刘苗, 洪峰, 王成华.飞跨电容型双降压五电平逆变器[J]. 中国电机工程学报, 2012, 32(12): 14-21.
Liu Miao, Hong Feng, Wang Chenghua.Flying- capacitor dual Buck five-level inverter[J]. Proceedings of the CSEE, 2012, 32(12): 14-21.
[10] 王奎, 郑泽东, 许烈, 等. 混合箝位型四电平和五电平逆变器拓扑结构和控制策略[J]. 电工技术学报, 2018, 33(2): 353-360.
Wang Kui, Zheng Zedong, Xu Lie, et al. Hybrid-clamp four-level five-level inverters[J]. Transactions of China Electrotechnical Society, 2018, 33(2): 353-360.
[11] 张琦, 李江江, 孙向东, 等. 单相级联七电平逆变器拓扑结构及其控制方法[J]. 电工技术学报, 2019, 34(18): 3843-3853.
Zhang Qi, Li Jiangjiang, Sun Xiangdong, et al. Topology and control method of single-phase cascaded seven-level inverter[J]. Transactions of China Elec- trotechnical Society, 2019, 34(18): 3843-3853.
[12] 王要强, 周成龙, 李忠文, 等. 单电源自均压九电平逆变器及其调制策略[J]. 电工技术学报, 2020, 35(4): 817-826.
Wang Yaoqiang, Zhou Chenglong, Li Zhongwen, et al. Single-source self-voltage-balancing nine-level inverter and its modulation strategy[J]. Transactions of China Electrotechnical Society, 2020, 35(4): 817-826.
[13] Husev O, Strzelecki R, Blaabjerg F, et al. Novel family of modified QZS buck-boost multilevel inverters with reduced switch count[C]//International Conference on Compatibility and Power Electronics, Portugal, 2015: 98-105.
[14] Oleksandr H, Ryszard S, Frede B, et al. Novel family of single-phase modified impedance-source Buck- Boost multilevel inverters with reduced switch count[J]. IEEE Transactions on Power Electronics, 2016, 31(11): 7580-7591.
[15] 贾兴波.Z源型单相全桥中点箝位逆变器研究[D]. 秦皇岛: 燕山大学, 2016.
[16] Bhattacherjee H, Nakka J.A single-phase cascaded h-bridge inverter for grid-tied photovoltaic system addressing the problem of unbalances in H-bridge cells[C]//International Conference on Microelectro- nics, Computing and Communications, Durgapur, India, 2016: 1-6.
[17] 李艳, 阮新波, 杨东升, 等. 带缓冲单元的多输入直流变换器电路拓扑[J]. 电工技术学报, 2009, 24(6): 62-68.
Li Yan, Ruan Xinbo, Yang Dongsheng, et al. Multiple-input DC-DC converters with buffer cells[J]. Transactions of China Electrotechnical Society, 2009, 24(6): 62-68.
[18] Liu Yuanchuan, Chen Yaoming.A systematic approach to synthesizing multi-input DC-DC con- verters[J]. IEEE Transactions on Power Electronics, 2009, 24(1): 116-127.
[19] 王立乔, 王欣, 仇雷.一种新型单级非隔离双Cuk逆变器[J]. 中国电机工程学报, 2014, 34(6): 846-854.
Wang Liqiao, Wang Xin, Qiu Lei.A novel single- stage non-isolated dual Cuk inverter[J]. Proceedings of the CSEE, 2014, 34(6): 846-854.
[20] 王立乔, 孙孝峰.分布式发电系统中的光伏发电技术研究[M]. 2版.北京: 机械工业出版社, 2014.
[21] 王立乔, 李占一, 杨彬.一种新型无电解电容的单级Zeta逆变器[J]. 中国电机工程学报, 2019, 39(14): 4221-4231.
Wang Liqiao, Li Zhanyi, Yang Bin.A novel single- stage Zeta inverter with non-electrolytic capacitor[J]. Proceedings of the CSEE, 2019, 39(14): 4221-4231.
[22] 张占松, 蔡宣三.开关电源的原理与设计[M]. 修订版.北京: 电子工业出版社, 2004.
[23] 徐德鸿.电力电子系统建模及控制[M]. 北京: 机械工业出版社, 2006.
[24] 常春贺, 曹鹏举, 杨江平, 等. PR调节器在逆变电源中的应用[J]. 电源技术, 2010, 34(10): 1049-1052.
Chang Chunhe, Cao Pengju, Yang Jiangping, et al. Application of PR resonant regulator to military inverter[J]. Chinese Journal of Power Sources, 2010, 34(10): 1049-1052.