Active Regulation of Electromagnetic Force in Wireless Power Transfer Systems

Round 1

Reviewer 1 Report

1. I suggest  the following: 

2. 1-  Provide detailed data, graphs, or charts illustrating the measured electromagnetic forces at different transmission distances to offer a clearer visualization of the results.

3. 2- Conduct a more thorough analysis of the experimental results to elucidate the relationship between the adjusted switch frequency and the magnitude/direction of electromagnetic forces on the receiving coil.

4. 3- Expand on the discussion of the experimental results and explicitly connect them to the proposed method for controlling electromagnetic forces. Discuss the broader implications and significance of the findings for WPT systems.

5. 4-  Consider including a comparative analysis with existing methods or technologies for controlling electromagnetic forces in WPT systems to highlight the novelty and effectiveness of the proposed approach.

6. 5- Suggest potential future research directions or applications based on the study's findings to provide a roadmap for further advancements in the field of WPT technology in space stations.

7.  

Minor typing and grammar mistakes are observed 

Author Response

Dear expert reviewers
Thank you very much for taking the time to review my article amidst your busy schedule. The attached document contains the modifications we made in response to your valuable feedback and suggestions from the previous review. We have thoroughly revised areas where we previously overlooked in the article. We kindly ask for your review of these modifications. While we have made efforts to address all issues, there may still be areas needing improvement. Your further suggestions would be greatly appreciated.

Author Response File: Author Response.docx

Reviewer 2 Report

This paper proposes a method to minimize the electromagnetic force of the wireless power transmission system by adjusting the working principle within a suitable range. It clearly illustrates the theory of the proposed method. But the following points should be considered.

(1) When interpreting the meaning of the symbols a formula, the word “where” should be placed at the beginning of a line and written in lowercase.

(2) It seems to be missing a formula before the sentence “Then the amperage force 𝐹 of the current element 𝑖_sd𝑙 on the coil 𝐿s is:” in line 128.

(3) Fig. 6 and 7 need to be redrawn for clarity and readability.

(4) A simple but useful method is used in your paper. But how do you determine the switching frequency based on the transmission distance h. Noted that it exists significant error between simulation and experimental results, is the change of the working frequency based on simulation results or experimental tests? And can the switching frequency automatically change according to h?

No comments.

Author Response

Dear expert reviewers
Thank you very much for taking the time to review my article amidst your busy schedule. The attached document contains the modifications we made in response to your valuable feedback and suggestions from the previous review. We have thoroughly revised areas where we previously overlooked in the article. We kindly ask for your review of these modifications. While we have made efforts to address all issues, there may still be areas needing improvement. Your further suggestions would be greatly appreciated.

Author Response File: Author Response.pdf

Reviewer 3 Report

The following issues should be addressed to improve the quality of this paper:

a. The authors should better explain the main contribution or novelty of this paper.

b. A flowchart indicating the proposed methodology used in this research should be added.

c. The discussion of results needs to be improved. This section is treated in a rather superficial way. The limitations of the research should be highlighted.

d. Future research direction may be indicated.

Author Response

Dear expert reviewers
Thank you very much for taking the time to review my article amidst your busy schedule. The attached document contains the modifications we made in response to your valuable feedback and suggestions from the previous review. We have thoroughly revised areas where we previously overlooked in the article. We kindly ask for your review of these modifications. While we have made efforts to address all issues, there may still be areas needing improvement. Your further suggestions would be greatly appreciated.

Author Response File: Author Response.pdf

Reviewer 4 Report

Dear authors

The paper proposes a method for regulating the electromagnetic force in wireless power transfer systems, combining theoretical analysis, simulations, and experimental tests. It stands out for its practical relevance and technical contribution. However, some points need to be clarified.

The figure 1 has poor resolution and is little discussed in the text, in addition to having an uninformative caption.

Figure 3 shows a frequency tracking control scheme; however, it is not discussed in the text. I believe that the scheme is something important in the paper, but it is little discussed in the text.

Some points are not clear in the text, and I believe they should be included so that the article can be considered for publication in the future:

I.              How do the authors plan to address the limitation related to frequency control accuracy for regulating electromagnetic force in wireless power transfer systems, considering that improvements in this accuracy can significantly enhance the effectiveness of the proposed method?

II.          Considering the influence of practical engineering factors not addressed in the study, such as magnetic materials and mounting surfaces near the coils, what strategies do the authors suggest mitigating these variations in both simulations and future experiments?

III.          How do the authors explain the discrepancy between simulation and experimental results, and what steps do they suggest minimizing these differences in future studies?

IV.          The article's discussion, although it clarifies the applicability and limitations of the proposed method, seems to lack an in-depth comparative analysis with the existing literature. It is unclear how the results align with or diverge from previous studies or other proposed methods in the field. Furthermore, the presentation of limitations is not accompanied by detailed suggestions to overcome them in future research, in addition to the need for greater precision in frequency control. This lack of contextualization and concrete proposals for advancement raises the question: How do the authors view the positioning of their work in relation to previous developments in the field, and what specific strategies do they propose to address the identified limitations and enhance the applicability of their method in contexts practical?

No major problems were observed regarding English.

Author Response

Dear expert reviewers
Thank you very much for taking the time to review my article amidst your busy schedule. The attached document contains the modifications we made in response to your valuable feedback and suggestions from the previous review. We have thoroughly revised areas where we previously overlooked in the article. We kindly ask for your review of these modifications. While we have made efforts to address all issues, there may still be areas needing improvement. Your further suggestions would be greatly appreciated.

Author Response File: Author Response.pdf

Round 2

Reviewer 2 Report

No comments.

No comments.

Reviewer 4 Report

I am satisfied with the answers.