Research on Dual-Phase Non-Salient Pole Receiver for EV Dynamic Wireless Power Transfer System

Round 1

Reviewer 1 Report

The article reports a design of an optimized two-phase NSP receiver and a comparison between this NSP receiver and the existing two-phase DD-OQO. The developped receiver can reduce 35.4% of the 172 occupied volume and 47.0% of the wire consumption. The comparisons were limited to FEM simulations performed by the authors.

 

1.In the Introduction, the authors refer to various references,

unfortunately these references are starting to be old, please add more recent references. You can find recent references in the journal energy - Special Issue Wireless Power Transfer System for Electric Vehicles. https://www.mdpi.com/journal/energies/special_issues/Wireless_Power_Transfer_System_for_Electric_Vehicles)

 

2.Could you please give more details about the magnetic couplers used:

- materials used (permeability, shielding material and its conductivity, etc.)

- Distance between shielding and windings

- Distance between turns and number of wire strands

- Shielding plate for original DDQ coil are not shown (and its dimensions)

• Q factor of the coils (it is important for example to know the maximum achievable efficiency)

3.In Figure 5, at what distance (displacement and misalignment) are the simulations performed?  do these prameters influence the results ?Which FEM software are used?

 

4.It would be interesting to complete the study by integrating, for example, a comparison in terms of radiated emission or a comparative study concerning losses or even an efficiency study.

 

5.the presentation of an experimental validation part with measurements and a comparison of these results between the proposed structure and the original structure would give even more interest to the article.

 

6.In the end of the paper, the authors should include more "conclusive" comments. 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

In this paper, a design of dual-phase non-salient pole (NSP) receiver for EV DWPT system with bipolar transmitter is proposed, aiming at the contradiction between reducing the volume or cost and improving the misalignment tolerance of the receiver. The coupling principle of the proposed receiver is analyzed. The structure parameters are optimized by finite-element simulation method. If the authors can provide more experimental results to compare with the simulation results, then this optimized design will be solid in the real world.

Author Response

Dear Reviewer,

We would like to appreciate the time and effort that you dedicated to providing feedback on our manuscript. The details of the main changes are briefly indicated point by point in this letter.

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In this paper, a design of dual-phase non-salient pole (NSP) receiver for EV DWPT system with bipolar transmitter is proposed, aiming at the contradiction between reducing the volume or cost and improving the misalignment tolerance of the receiver. The coupling principle of the proposed receiver is analyzed. The structure parameters are optimized by finite-element simulation method. If the authors can provide more experimental results to compare with the simulation results, then this optimized design will be solid in the real world.

 

Response: Thank you for this reminder. The manuscript is revised accordingly.

Change: The presentation of an experimental validation part with measurements and a comparison of these results between the proposed structure and the original structure are added in the revised manuscript.

Reviewer 3 Report

The paper proposes a dual-phase non-salient pole receiver to replace existing dual-phase salient pole receiver, which seems to be more efficient. 

In general, the paper is interesting; however, it would have been nice to have also some experimental results. Below some typo's comments:

• page 6, line 145, remove extra space
• page 9, line 194 -> capital letter
• in general, add a space between numbers and units

Some general comments

• Can you add some comments about the power electronics needed for the dual-phase device? Is it more expensive or complex with respect to the single-phase device? Can you comment about that?
• In this paper "V. Cirimele et al., "Uncertainty Quantification for SAE J2954 Compliant Static Wireless Charge Components," in IEEE Access, vol. 8, pp. 171489-171501, 2020, doi: 10.1109/ACCESS.2020.3025052." an uncertainty quantification analysis has been performed for the standard (static) WPT in in order to study the impact of the manufacturing tolerances on the overall performances of the WPT system. Do you think that the proposed WPT is robust also in terms of variations due to manufacturing tolerances? Can you comment on that?

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The authors significantly improve the quality of the paper. In addition to the corrections requested, the authors added an experimental part. This well-detailed section further enhances the already very interesting research work of this publication.
Thanks to the authors for their involvement.