Parameter Tuning Method for a Lattice Compensated Wireless Power Transfer System
Round 1
Reviewer 1 Report
Comments and Suggestions for Authors1. Can the proposed solution also be used to charge low-power WPT devices (e.g. smartphone, laptop)? Or only for EVs?
2. In Fig. 4, the OX axis is not labeled.
3. The article is written less carefully (e.g. missing dots, sentences start with a lowercase letter, formatting of patterns).
4. In the Introduction, the authors should more precisely define the knowledge described by other authors, indicating the advantages and disadvantages of other solutions. The reader should notice a clear difference and innovation on this basis.
5. Please also refer to other experiments. The difference between WPT and IPT should be indicated in the Introduction.
6. Please review and refer to other works:
https://www.mdpi.com/2673-4117/4/2/61
https://www.mdpi.com/1996-1073/16/22/7651
7. Did the authors consider using multiple transmitting or receiving coils instead of just one? What advantages and disadvantages can the authors point out in this case?
8. The quality of Figs. 8-9 is poor.
9. What optimization was used and what factors influenced this choice? Can the authors compare the proposed optimization method with another method, e.g. AG?
10. How were the coils wound and did the results take into account the imprecise winding of the coils?
11. Wouldn't it be better to use Litz cable?
Comments on the Quality of English LanguageModerate editing of English language required.
Author Response
Please see attachment. Thank you.
Author Response File: 
Author Response.docx
Reviewer 2 Report
Comments and Suggestions for AuthorsWireless power transmission is one of the most relevant research topics in recent times. Wireless power transmission systems are used from micro devices to powerful cars. In this regard, more and more research and development work is being done to optimize the charging process of devices. This paper is devoted to the evaluation of a parameter tuning method for a grid-compensated wireless power transmission system, which allows optimizing the parameters for the system using a linear programming algorithm. The authors describe a mathematical model for a WPT system with a cross-connected coil to evaluate the power transfer. The authors also built a reduced-power prototype with a power of 200 W to test the feasibility and performance of such a topology. As a result of modeling and analysis of experimental data, the efficiency of the proposed WPT system was obtained, reaching more than 86%. It is worth noting that the work has scientific and practical significance, is performed at a fairly good level, the results of modeling and experimental studies are in good agreement with each other. The work can be recommended for publication after minor revisions: 1. Source 21 is not scientific, it would be better to format it as a footnote or mention this standard directly in the text. More than 60% of sources are older than 5 years, I would recommend reducing this figure. 2. In figures 8-11, the legend is very small, it is difficult to read against the background of the general view. Whereas in figure 12, on the contrary, the font of the axes and their captions is too large. I would recommend working on this.
Author Response
Please see the attachment.
Author Response File: Author Response.docx
Reviewer 3 Report
Comments and Suggestions for AuthorsThe work presented here advocates the use of double-sided Lattice compensation networks to achieve better performance wireless power transfer systems. The work is well described and reasoned but there some weaknesses that should be addressed to improve the overall paper quality and highlight the real advantages of this proposal.
The authors say in the abstract that “a 200-Watt prototype with a 100 mm air gap utilizing winding cross coupled was fabricated and tested and efficiency reached 86.3% …”, and in lines 457-459 it is claimed that “Typically, in WPT systems with LLC-LLC compensation networks for output voltage adjustment, an extra DC-DC converter is employed. The proposed system is capable of achieving soft switching during battery charging without requiring such converters.”
but in Table III it is claimed that this work shows an efficiency of 94.5% and requires an extra converter
It looks like text is missing in lines 146-147, 262, 360-361, 375, and 384.
Shouldn’t “Vout” in line 166 be “Vbatt”, and “Rl” in line 169 be “R”? Shouldn’t M in equations (10) and (11) be “Lm”?
Z- transform usually stands for the signal processing operation that converts a discrete-time signal into a complex valued frequency-domain representation. In your case you are doing a conversion into Z parameters.
What are the load conditions with which the simulations were carried out?
Where realistic inductor models and switching losses considered to obtain the results presented in figure 12?
Comments on the Quality of English Language/
Author Response
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Author Response File: 
Author Response.pdf
Round 2
Reviewer 1 Report
Comments and Suggestions for AuthorsAll of my questions have been answered, Thank you.
Comments on the Quality of English LanguageMinor editing of English language required.
Author Response
Please see the attachment.
Author Response File: Author Response.docx
Reviewer 3 Report
Comments and Suggestions for AuthorsThe authors improved significantly the paper after rewriting some parts of the text and correcting figures sizes and equations. Some incoherencies were also corrected. In general, it can be said that the previous review comments were properly addressed.
For the sake of scientific soundness and significance of content, it would be better if some conclusions drawn from the simulations were also demonstrated mathematically. Nevertheless, the proposed solution has been validated both after simulations and experimentally.
Comments on the Quality of English LanguageThe written English still requires a careful revision.
Author Response
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Author Response File: Author Response.docx
