NVH Optimization Analysis of Permanent Magnet Synchronous Motor by Rotor Slotting

Round 1

Reviewer 1 Report

The paper deals with an interesting subject, however its development, discussion and presentation deserve an improvement. The introduction cites some references, however the novelty and interest of the paper with respect to previous literature are not adequately explained. Moreover, more references should be added. After the theoretical part, the proposed method (rotor slotting) is abruptly introduced, just saying that "the rotor is slotted at specific positions" without further explanation, actually being not very useful for interested readers. The experimental results demonstrate that the applied slotting was effective, but no justification is given for that choice. It would be much more interesting for the reader to explain the optimization performed by the authors in order to find a slotting configuration that minimizes the noise without penalizing the torque too much, instead of presenting just the final result. Figures 1 and 4 are unreadable and should be enlarged. 

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 2 Report

This paper proposes an optimization analysis of the permanent magnet synchronous motor by rotor slotting. Although the abstract clearly presents the description of the work carried out by the authors, it is necessary to indicate the contribution of the authors to the topic addressed.

The text incorporates multiple variables and parameters, it is recommended that the authors include a brief index indicating the definition of each parameter used; or that it is clearly indicated in the text.

The introduction includes the state-of-the-art of the problem studied. It would be advisable to increase the number of bibliographic references; as well as indicate the differences between the research works mentioned, showing some advantages and disadvantages between them. It is recommended that the authors clearly indicate their contribution with respect to other researches develops and cited in the references.

Section 2 provides the equations for the principle of operation as well as the theoretical principles. It would be advisable to indicate that the finite element method has been used to obtain different parameters. While section 3 presents the results of the PMSM finite element simulation. These results are shown in different figures and tables. Mathematical expositions make it easier for the reader to follow the document. Figures 2, 5 and 6 help to re-interpret the effects of rotor grooving, it would be advisable to experimentally validate the results obtained in the simulation.

The text included in the conclusions is more related to the discussion of the simulation results than to the global conclusions obtained. For this reason, it is recommended to delve into the conclusions obtained.

Bibliographic references are current, all of them have been published in the last decade. It would be advisable to carry out a more detailed search to complement the research work carried out.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

The paper has been enough improved with respect to the first submission, following the reviewer's comments, and can be now considered for publication.

This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.