Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction
Abstract Herein, a variable switching frequency pulse width (VSFPWM) modulation strategy for quasi‐Z‐source inverter (qZSI) based on a recently proposed modulation method, named as ZSVM8, is proposed. The formulae of quasi‐Z‐source inverter inductor current ripple of ZSVM8 are deduced in detail, and...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-06-01
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| Series: | IET Power Electronics |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/pel2.12476 |
| _version_ | 1797817346692218880 |
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| author | Xin Liu Zhenbin Huang Litong Wang |
| author_facet | Xin Liu Zhenbin Huang Litong Wang |
| author_sort | Xin Liu |
| collection | DOAJ |
| description | Abstract Herein, a variable switching frequency pulse width (VSFPWM) modulation strategy for quasi‐Z‐source inverter (qZSI) based on a recently proposed modulation method, named as ZSVM8, is proposed. The formulae of quasi‐Z‐source inverter inductor current ripple of ZSVM8 are deduced in detail, and a prediction model for the current ripple is obtained. Combining with the VSFPWM technique, an improved modulation method named ZSVM8 VSFPWM is proposed to further reduce the switching times without increasing the maximum inductor current ripple. As a result, the switching losses can be reduced compared with the conventional ZSVM8. Besides, ZSVM8 VSFPWM also suppresses electromagnetic interference noise, such as current EMI and common‐mode voltage. Simulations and hardware experimental results are implemented to verify the efficacies of the proposed modulation method. |
| first_indexed | 2024-03-13T08:52:07Z |
| format | Article |
| id | doaj.art-4528042e31bf4a7687cdcf7316e89415 |
| institution | Directory Open Access Journal |
| issn | 1755-4535 1755-4543 |
| language | English |
| last_indexed | 2024-03-13T08:52:07Z |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Power Electronics |
| spelling | doaj.art-4528042e31bf4a7687cdcf7316e894152023-05-29T09:25:42ZengWileyIET Power Electronics1755-45351755-45432023-06-011681382139710.1049/pel2.12476Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple predictionXin Liu0Zhenbin Huang1Litong Wang2Department of Electrical Engineering North China Electric Power University Baoding P. R. ChinaDepartment of Electrical Engineering North China Electric Power University Baoding P. R. ChinaDepartment of Electrical Engineering North China Electric Power University Baoding P. R. ChinaAbstract Herein, a variable switching frequency pulse width (VSFPWM) modulation strategy for quasi‐Z‐source inverter (qZSI) based on a recently proposed modulation method, named as ZSVM8, is proposed. The formulae of quasi‐Z‐source inverter inductor current ripple of ZSVM8 are deduced in detail, and a prediction model for the current ripple is obtained. Combining with the VSFPWM technique, an improved modulation method named ZSVM8 VSFPWM is proposed to further reduce the switching times without increasing the maximum inductor current ripple. As a result, the switching losses can be reduced compared with the conventional ZSVM8. Besides, ZSVM8 VSFPWM also suppresses electromagnetic interference noise, such as current EMI and common‐mode voltage. Simulations and hardware experimental results are implemented to verify the efficacies of the proposed modulation method.https://doi.org/10.1049/pel2.12476current ripple reductionDC–AC power convertorspower electronicsquasi‐Z‐source inverter (qZSI)variable switching frequency pulse width modulation (VSFPWM) |
| spellingShingle | Xin Liu Zhenbin Huang Litong Wang Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction IET Power Electronics current ripple reduction DC–AC power convertors power electronics quasi‐Z‐source inverter (qZSI) variable switching frequency pulse width modulation (VSFPWM) |
| title | Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction |
| title_full | Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction |
| title_fullStr | Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction |
| title_full_unstemmed | Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction |
| title_short | Variable switching frequency PWM for quasi‐Z‐Source inverter based on DC current ripple prediction |
| title_sort | variable switching frequency pwm for quasi z source inverter based on dc current ripple prediction |
| topic | current ripple reduction DC–AC power convertors power electronics quasi‐Z‐source inverter (qZSI) variable switching frequency pulse width modulation (VSFPWM) |
| url | https://doi.org/10.1049/pel2.12476 |
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