International Journal of Circuit Theory and Applications

Volume 52, Issue 10 pp. 5252-5262

ORIGINAL ARTICLE

Three-phase common-ground-type photovoltaic inverter without shoot-through problem

Zhilei Yao,

Corresponding Author

Zhilei Yao

[email protected]

orcid.org/0000-0003-3991-4929

Department of Electrical Engineering, Shanghai Maritime University, Shanghai, China

Correspondence

Zhilei Yao, Department of Electrical Engineering, Shanghai Maritime University, Shanghai 201306, China.

Email: [email protected]

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Xiangyu He,

Xiangyu He

Department of Electrical Engineering, Shanghai Maritime University, Shanghai, China

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Zhilei Yao,

Corresponding Author

Zhilei Yao

[email protected]

orcid.org/0000-0003-3991-4929

Department of Electrical Engineering, Shanghai Maritime University, Shanghai, China

Correspondence

Zhilei Yao, Department of Electrical Engineering, Shanghai Maritime University, Shanghai 201306, China.

Email: [email protected]

Search for more papers by this author

Xiangyu He,

Xiangyu He

Department of Electrical Engineering, Shanghai Maritime University, Shanghai, China

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First published: 20 March 2024

https://doi.org/10.1002/cta.4014

Citations: 2

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Summary

Since there are common mode leakage current (CMLC) and shoot-through problems in the conventional three-phase transformerless photovoltaic (PV) inverters, the three-phase common-ground-type transformerless dual-buck inverters (DBIs) are derived. By shorting the neutral point of the three-phase load and the negative terminal of the PV panel, the CMLC is eliminated. The DBIs has no shoot-through problem and there is no current flowing through the body diode of the SiC metal oxide semiconductor field-effect transistor (MOSFET). The three-phase DBI combined with a buck-boost converter is taken as an example to illustrate the operating principle of the derived inverters. The control strategy of the inverter is given. A prototype is built to validate the proposed inverter. Finally, comparison among the proposed inverter and other three-phase inverters is given.

Open Research

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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Volume52, Issue10

October 2024

Pages 5252-5262

Three-phase common-ground-type photovoltaic inverter without shoot-through problem

Summary

Open Research

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References

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Three-phase common-ground-type photovoltaic inverter without shoot-through problem

Summary

Open Research

DATA AVAILABILITY STATEMENT

REFERENCES

Citing Literature

References

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