Impact of Modulation Strategies on the Reliability and Harmonics of Impedance-Source Inverters

被引：19

作者：

Liu, Ping ^{[1
]}

Xu, Jie ^{[1
]}

Yang, Yongheng ^{[2
]}

Wang, Huai ^{[2
]}

Blaabjerg, Frede ^{[2
]}

机构：

[1] Hunan Univ, Coll Elect & Informat Engn, Changsha 410082, Peoples R China

[2] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark

来源：

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS | 2020年 / 8卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Junction temperature; modulation strategy; power loss; quasi-Z-source inverters (qZSIs); reliability; total harmonic distortion (THD); MAXIMUM BOOST CONTROL; PULSEWIDTH MODULATION; VECTOR MODULATION; CURRENT RIPPLE; INDUCTOR; CONVERTER; NETWORKS;

D O I：

10.1109/JESTPE.2019.2933575

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Impedance-source inverters, e.g., quasi-Z-source inverter (qZSI), with various modulation strategies have been explored in the literature to improve the inverter performance from different perspectives, such as high voltage gain, minimal inductor current ripple, and high efficiency. The modulation strategies can also significantly affect voltage/current stresses, power losses, thermal loading, and harmonics. Thus, this article presents a detailed analysis of the modulation effect on the reliability and harmonic performance of qZSIs. A comparative evaluation of current stresses, power losses, thermal stresses, number of cycles to failure of the power devices, and the output current harmonics is performed for various modulation strategies. Such comparative analysis enables the researchers to select the appropriate modulation strategy for the qZSI for their applications. Analytical expressions of current stresses and power losses are extracted for selected modulation strategies. Simulations and experiments are carried out to validate the analysis and comparison.

引用

页码：3968 / 3981

页数：14

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