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

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

Impedance-source inverters, e.g., quasi-Z-source inverter (qZSI), with various modulation strategies have been explored in terms of voltage gains, switching losses, inductor current ripples and capacitor voltage stresses in the literature. However, the corresponding modulation strategies can affect voltage/current stresses, power losses, inverter thermal loading and harmonics. In this paper, the impact of space vector modulation (SVM) strategies on the reliability and total harmonic distortion of the qZSI is studied. Three different SVM strategies are investigated, where the current stresses and power losses are calculated theoretically. More importantly, a comparison of the maximum current stresses, power losses, thermal stresses, the number of cycles to failure of the power switches, and output current harmonics was performed. This enables identifying the most appropriate modulation strategy for the qZSI considering the efficiency, reliability and harmonics. Simulations and experimental tests are provided to validate the analysis and comparison.
OriginalsprogEngelsk
TidsskriftI E E E Journal of Emerging and Selected Topics in Power Electronics
Vol/bindPP
Udgave nummer99
Sider (fra-til)1-10
Antal sider10
ISSN2168-6777
DOI
StatusE-pub ahead of print - jan. 2020

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Modulation
Vector spaces
Electric potential
Harmonic distortion
Thermal stress
Capacitors
Switches

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@article{2d807c6b36114442aff31f32b5833184,
title = "Impact of Modulation Strategies on the Reliability and Harmonics of Impedance-Source Inverters",
abstract = "Impedance-source inverters, e.g., quasi-Z-source inverter (qZSI), with various modulation strategies have been explored in terms of voltage gains, switching losses, inductor current ripples and capacitor voltage stresses in the literature. However, the corresponding modulation strategies can affect voltage/current stresses, power losses, inverter thermal loading and harmonics. In this paper, the impact of space vector modulation (SVM) strategies on the reliability and total harmonic distortion of the qZSI is studied. Three different SVM strategies are investigated, where the current stresses and power losses are calculated theoretically. More importantly, a comparison of the maximum current stresses, power losses, thermal stresses, the number of cycles to failure of the power switches, and output current harmonics was performed. This enables identifying the most appropriate modulation strategy for the qZSI considering the efficiency, reliability and harmonics. Simulations and experimental tests are provided to validate the analysis and comparison.",
keywords = "Quasi-Z-source inverters (qZSI), Modulation strategy, Power loss, Junction temperature, Reliability, Total harmonic distortion (THD)",
author = "Ping Liu and Jie Xu and Yongheng Yang and Huai Wang and Frede Blaabjerg",
year = "2020",
month = "1",
doi = "10.1109/JESTPE.2019.2933575",
language = "English",
volume = "PP",
pages = "1--10",
journal = "I E E E Journal of Emerging and Selected Topics in Power Electronics",
issn = "2168-6777",
publisher = "IEEE",
number = "99",

}

Impact of Modulation Strategies on the Reliability and Harmonics of Impedance-Source Inverters. / Liu, Ping; Xu, Jie; Yang, Yongheng; Wang, Huai; Blaabjerg, Frede.

I: I E E E Journal of Emerging and Selected Topics in Power Electronics, Bind PP, Nr. 99, 01.2020, s. 1-10.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Impact of Modulation Strategies on the Reliability and Harmonics of Impedance-Source Inverters

AU - Liu, Ping

AU - Xu, Jie

AU - Yang, Yongheng

AU - Wang, Huai

AU - Blaabjerg, Frede

PY - 2020/1

Y1 - 2020/1

N2 - Impedance-source inverters, e.g., quasi-Z-source inverter (qZSI), with various modulation strategies have been explored in terms of voltage gains, switching losses, inductor current ripples and capacitor voltage stresses in the literature. However, the corresponding modulation strategies can affect voltage/current stresses, power losses, inverter thermal loading and harmonics. In this paper, the impact of space vector modulation (SVM) strategies on the reliability and total harmonic distortion of the qZSI is studied. Three different SVM strategies are investigated, where the current stresses and power losses are calculated theoretically. More importantly, a comparison of the maximum current stresses, power losses, thermal stresses, the number of cycles to failure of the power switches, and output current harmonics was performed. This enables identifying the most appropriate modulation strategy for the qZSI considering the efficiency, reliability and harmonics. Simulations and experimental tests are provided to validate the analysis and comparison.

AB - Impedance-source inverters, e.g., quasi-Z-source inverter (qZSI), with various modulation strategies have been explored in terms of voltage gains, switching losses, inductor current ripples and capacitor voltage stresses in the literature. However, the corresponding modulation strategies can affect voltage/current stresses, power losses, inverter thermal loading and harmonics. In this paper, the impact of space vector modulation (SVM) strategies on the reliability and total harmonic distortion of the qZSI is studied. Three different SVM strategies are investigated, where the current stresses and power losses are calculated theoretically. More importantly, a comparison of the maximum current stresses, power losses, thermal stresses, the number of cycles to failure of the power switches, and output current harmonics was performed. This enables identifying the most appropriate modulation strategy for the qZSI considering the efficiency, reliability and harmonics. Simulations and experimental tests are provided to validate the analysis and comparison.

KW - Quasi-Z-source inverters (qZSI)

KW - Modulation strategy

KW - Power loss

KW - Junction temperature

KW - Reliability

KW - Total harmonic distortion (THD)

U2 - 10.1109/JESTPE.2019.2933575

DO - 10.1109/JESTPE.2019.2933575

M3 - Journal article

VL - PP

SP - 1

EP - 10

JO - I E E E Journal of Emerging and Selected Topics in Power Electronics

JF - I E E E Journal of Emerging and Selected Topics in Power Electronics

SN - 2168-6777

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