Novel Space-Vector PWM Schemes for Enhancing Efficiency and Decoupled Control in Quasi-Z-Source Inverters

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The article addresses an important area of research and makes significant contributions to the field of power electronics. The introduction of new PWM schemes with independent control of key parameters represents a substantial improvement over existing methods. Experimental results provide a robust validation of the proposals, demonstrating measurable improvements in efficiency and reliability. In addition, comparative analysis with other established PWM schemes enriches the context and relevance of the results presented.

Points for Improvement: A more in-depth discussion of the practical implications and potential industrial applications of the proposals could enrich the relevance and impact of the study

The article represents a valuable contribution to the field of power electronics, presenting new PWM schemes that offer significant improvements in efficiency and reliability for three-phase low-voltage source impedance inverters. With solid experimental results and a comprehensive comparative analysis, the study demonstrates a promising advance in the field. Some additional revisions are recommended to improve the clarity and comprehensiveness of the article.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

Comments and Suggestions for Authors

The paper, " Novel Space-Vector PWM Schemes for Enhancing Efficiency and Decoupled Control in Quasi-Z-Source Inverters" has an intriguing topic, but it needs a lot of work before it can be published. Please react to the remarks that follow:

1.    Previous investigations were not adequately described in the introduction section.

2.    Of the 22 references in the Introduction section, the authors do not do a good job of describing these references except for references 7, 11 and 18. It is advised to go into further detail about each reference and avoid overlapping citations.

3.    The originality of the research should be written more clearly at the end of the introduction section.

4.    It is recommended to define the standalone system in section 2.

5.    It is recommended to improve the resolution of all figures.

6.    It is recommended to provide an argument for your choice (SBSVM).

7.    Why is the pulse width modulated continuously for all phase legs?

8.    What affects the vertical analysis of AC reference signals?

9.    Why is the DC reference signal removed, when a timer is used instead to ensure an adjustable but constant ST state duration? It is recommended to provide an argument for this case.

10. Explain why the ST condition occurs once per switching period when the carrier signal is below the lower envelope of the reference signals, but, unlike SBMSV, it occurs in all three phase legs.

11.What is the reason for the increased current stress, switching losses, and conduction losses of the transistors in question, especially at higher D₀ values?

12.Rephrase this paragraph`` Only the continuous ZSPWM and ZSVM6 schemes result in symmetric thermal stress of the upper and lower switches, with the latter resulting in the highest overall temperature.’’

 

 

Comments on the Quality of English Language

13.English needs to be improved. 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

Manuscript has been improved and is now ok.

Reviewer 2 Report

Comments and Suggestions for Authors

Accept in present form