SINGLE-STAGE THREE-PHASE ZETA THREE-LEVEL INVERTER

Wang Liqiao; Li Jing; Li Zongyang; Shen Hong

doi:10.19912/j.0254-0096.tynxb.2025-0027

PDF(3383 KB)

Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (5) : 135-145. DOI: 10.19912/j.0254-0096.tynxb.2025-0027

SINGLE-STAGE THREE-PHASE ZETA THREE-LEVEL INVERTER

Wang Liqiao¹, Li Jing¹, Li Zongyang², Shen Hong¹

Author information +

History +

Abstract

A single-stage three-phase Zeta three-level inverter is introduced in this paper. The inverter meets the current demand for three-phase inverters with multi-level capability and the ability to step up/down voltage, which can be applied to high-power photovoltaic systems. Additionally, the carrier phase-shifted pulse width modulation is applied in this paper, which can effectively suppress the generation of even-order harmonics and improve the waveform quality of the inverter. The working principle of the proposed inverter is introduced in this paper. The CPS-PWM with zero-vector injection is also analyzed. Its buck-boost capability is also analyzed,followed by the design of inductance and capacitance parameters for the inverter. By designing a closed-loop control strategy, the system is endowed with a certain level of anti-interference capability. Ultimately, the simulation and experimentation confirm the feasibility and accuracy of the network structure.

Key words

three-level inverter / carrier phase shift pulse width modulation （CPS-PWM） / buck boost inverter / high power photovoltaic system / Zeta converter / hybrid injection pulse width modulation（HIPWM）

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Wang Liqiao, Li Jing, Li Zongyang, Shen Hong. SINGLE-STAGE THREE-PHASE ZETA THREE-LEVEL INVERTER[J]. Acta Energiae Solaris Sinica. 2026, 47(5): 135-145 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0027

References

[1] 王立乔, 林健, 朱文通, 等. 一种新型三相Buck-Boost光伏逆变器漏电流抑制研究[J]. 太阳能学报, 2022, 43(7): 101-108.
WANG L Q, LIN J, ZHU W T, et al.Research on leakage current suppression of a new three-phase Buck-Boost photovoltaic inverter[J]. Acta energiae solaris sinica, 2022, 43(7): 101-108.
[2] 代云中, 唐浩, 祁月文, 等. 一种无重叠时间无变压器电流型光伏并网逆变器研究[J]. 太阳能学报, 2023, 44(8): 232-237.
DAI Y Z, TANG H, QI Y W, et al.Research on current source PV grid-connected inverter with non-overlapping time and transformerless[J]. Acta energiae solaris sinica, 2023, 44(8): 232-237.
[3] 葛晓露, 潘尚智, 党兴华, 等. 模块化三相光伏逆变器及其分布式自适应升压控制策略[J]. 太阳能学报, 2024, 45(3): 533-541.
GE X L, PAN S Z, DANG X H, et al.Modular three-phase photovoltaic inverter and its distributed adaptive boost control strategy[J]. Acta energiae solaris sinica, 2024, 45(3): 533-541.
[4] 梁国壮, 韩沛松, 赵焕文, 等. 应用于光伏并网的双模共地型逆变器[J]. 太阳能学报, 2024, 45(1): 20-24.
LIANG G Z, HAN P S, ZHAO H W, et al.Dual-mode common-ground type inverter applied to photovoltaic grid connection[J]. Acta energiae solaris sinica, 2024, 45(1): 20-24.
[5] QANBARI T, TOUSI B.Single-source three-phase multilevel inverter assembled by three-phase two-level inverter and two single-phase cascaded H-bridge inverters[J]. IEEE transactions on power electronics, 2021, 36(5): 5204-5212.
[6] 徐质闲, 王政, 王学庆, 等. T型三电平双三相永磁同步电机驱动零共模电压模型预测控制[J]. 中国电机工程学报, 2020, 40(13): 4301-4310.
XU Z X, WANG Z, WANG X Q, et al.A predictive current control method for a T-type three-level dual three-phase PMSM with zero common-mode voltage[J]. Proceedings of the CSEE, 2020, 40(13): 4301-4310.
[7] 尹靖元, 周冰. 双三电平中点钳位开绕组电机反电动势谐波电压下弱磁控制策略[J]. 电工技术学报, 2017, 32(10): 174-181.
YIN J Y, ZHOU B.Open-end winding motor field-weaken control strategy of dual 3L-neutral point clamped based on back-electromotive force harmonic voltage[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 174-181.
[8] NABAE A, TAKAHASHI I, AKAGI H. A new neutral-point-clamped PWM inverter[J]. IEEE transactions on industry applications, 1981, IA-17(5): 518-523.
[9] 王鸿雁, 邓焰, 赵荣祥, 等. 飞跨电容多电平逆变器开关损耗最小PWM方法[J]. 中国电机工程学报, 2004, 24(8): 51-55.
WANG H Y, DENG Y, ZHAO R X, et al.Switching loss minimizing PWM method for flying capacitor multilevel inverter[J]. Proceedings of the CSEE, 2004, 24(8): 51-55.
[10] 鲍建宇, 鲍卫兵, 李玉玲. 光伏并网三相电流型多电平变流器拓扑与控制[J]. 电工技术学报, 2016, 31(8): 70-75.
BAO J Y, BAO W B, LI Y L.Topology and control of three-phase multilevel current-source converter for photovoltaic grid-connection[J]. Transactions of China Electrotechnical Society, 2016, 31(8): 70-75.
[11] GUO X Q, YANG Y, WANG B C, et al.Leakage current reduction of three-phase Z-source three-level four-leg inverter for transformerless PV system[J]. IEEE transactions on power electronics, 2019, 34(7): 6299-6308.
[12] LIU Y S, GE B M, ABU-RUB H, et al.An effective control method for three-phase quasi-Z-source cascaded multilevel inverter based grid-Tie photovoltaic power system[J]. IEEE transactions on industrial electronics, 2014, 61(12): 6794-6802.
[13] 陈旭. 新型准Z源T型三电平逆变器设计与控制研究[D]. 武汉: 华中科技大学, 2019.
CHEN X.Design and control research of new quasi-Z-source T-type three-level inverter[D]. Wuhan: Huazhong University of Science and Technology, 2019.
[14] ZHANG Z, ZHU Z H, WU J K, et al.A high performance of three-phase electrolytic capacitor-less LC-type grid-connected inverter system with multiple PV arrays[C]//2020 23rd International Conference on Electrical Machines and Systems (ICEMS). Hamamatsu, Japan, 2020: 444-448.
[15] ZHANG Z, JIANG M, YAO Y, et al.Transformerless three-phase T-type three-level inverter for medium-power photovoltaic systems[C]//2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia). Hefei, China, 2016: 1592-1595.
[16] DHARA S, SOMASEKHAR V T.A three-phase semi-single stage PV inverter with voltage boosting and leakage current minimization[J]. IEEE transactions on circuits and systems Ⅱ: express briefs, 2022, 69(1): 169-173.
[17] 韩啸. 一种单级三相Cuk三电平逆变器研究[D]. 秦皇岛: 燕山大学, 2019.
HAN X.Research on a single-stage three-phase cuk three-level inverter[D]. Qinhuangdao: Yanshan University, 2019.
[18] 黄晶生, 刘美茵, 陈志磊, 等. 中德光伏发电并网标准技术要求异同分析[J]. 电网与清洁能源, 2014, 30(1): 97-101, 108.
HUANG J S, LIU M Y, CHEN Z L, et al.Comparative study on technical demands of PV generation system between China standards and German standards[J]. Power system and clean energy, 2014, 30(1): 97-101, 108.
[19] 谢路耀, 金新民, 吴学智, 等. 基于零序电压注入与调制波分解的三电平脉宽调制策略[J]. 电工技术学报, 2014, 29(10):27-37.
XIE L Y, JIN X M, WU X Z, et al.Three-level pulse width modulation strategy based on zero-sequence voltage injection and modulation-waves decomposition[J]. Transactions of China Electrotechnical Society, 2014, 29(10): 27-37.
[20] 李涛, 张晓锋, 乔鸣忠. SPWM与SVPWM的宏观对等性研究[J]. 中国电机工程学报, 2010, 30(S1): 178-184.
LI T, ZHANG X F, QIAO M Z.Research on the macro-equivalence between SPWM and SVPWM[J]. Proceedings of the CSEE, 2010, 30(S1): 178-184.
[21] 王超, 何英杰, 刘云峰, 等. 飞跨电容型多电平逆变器空间矢量与载波脉宽调制统一理论研究[J]. 中国电机工程学报, 2016, 36(15): 4172-4183.
WANG C, HE Y J, LIU Y F, et al.Research of the unity theory between the space vector and the carrier-based pulse width modulation strategies in flying capacitor multilevel inverters[J]. Proceedings of the CSEE, 2016, 36(15): 4172-4183.
[22] 尹靖元, 周冰. 双三电平中点钳位开绕组电机反电动势谐波电压下弱磁控制策略[J]. 电工技术学报, 2017, 32(10): 174-181.
YIN J Y, ZHOU B.Open-end winding motor field-weaken control strategy of dual 3L-neutral point clamped based on back-electromotive force harmonic voltage[J]. Transactions of China Electrotechnical Society, 2017, 32(10): 174-181.
[23] ABDELHAKIM A, MATTAVELLI P, SPIAZZI G.Three-phase three-level flying capacitors split-source inverters: analysis and modulation[J]. IEEE transactions on industrial electronics, 2017, 64(6): 4571-4580.
[24] 王立乔, 韩啸, 石珊珊. 一种单级三相Cuk三电平逆变器研究[J]. 中国电机工程学报, 2020, 40(13): 4290-4301.
WANG L Q, HAN X, SHI S S.Research on a single-stage three-phase Cuk three-level inverter[J]. Proceedings of the CSEE, 2020, 40(13): 4290-4301.