LAPSE:2019.0086
Published Article
LAPSE:2019.0086
A High-Precision Control for a ZVT PWM Soft-Switching Inverter to Eliminate the Dead-Time Effect
Baoquan Kou, Hailin Zhang, He Zhang
January 7, 2019
Attributing to the advantages of high efficiency, low electromagnetic interference (EMI) noise and closest to the pulse-width-modulation (PWM) converter counterpart, zero-voltage-transition (ZVT) PWM soft-switching inverters are very suitable for high-performance applications. However, the conventional control algorithms intended for high efficiency generally results in voltage distortion. Thus, this paper, for the first time, proposes a high-precision control method to eliminate the dead-time effect through controlling the auxiliary current in the auxiliary resonant snubber inverter (ARSI), which is a typical ZVT PWM inverter. The dead-time effect of ARSI is analyzed, which is distinguished from hard-switching inverters. The proposed high-precision control is introduced based on the investigation of dead-time effect. A prototype was developed to verify the effectiveness of the proposed control. The experimental results shows that the total harmonic distortion (THD) of the output current of the ARSI can be reduced compared with that of the hard-switching inverter, because the blanking delay error is eliminated. The quality of the output current and voltage can be further improved by utilizing the proposed control method.
Keywords
auxiliary resonant snubber inverter (ARSI), dead-time effect, high precision, soft-switching, Zero-voltage-transition (ZVT)
Suggested Citation
Kou B, Zhang H, Zhang H. A High-Precision Control for a ZVT PWM Soft-Switching Inverter to Eliminate the Dead-Time Effect. (2019). LAPSE:2019.0086
Author Affiliations
Kou B: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
Zhang H: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China [ORCID]
Zhang H: Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150080, China
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Journal Name
Energies
Volume
9
Issue
8
Article Number
E579
Year
2016
Publication Date
2016-07-25
Published Version
ISSN
1996-1073
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PII: en9080579, Publication Type: Journal Article
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LAPSE:2019.0086
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doi:10.3390/en9080579
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Jan 7, 2019
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Calvin Tsay
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