Modeling, Design and Suspension Force Analysis of a Novel AC Six-Pole Heteropolar Hybrid Magnetic Bearing

Round 1

Reviewer 1 Report

This paper presents modeling, design and suspension force analysis of a novel AC six-pole heteropolar hybrid magnetic bearing. The article is well organized. Some comments and suggestions are given here:

- In introduction, the main contribution and originality should be explained in more detail.

- Interpretation of results needs to be improved.

- What is the sampling frequency to use for the control system?

- The authors used consciences a lot, for example.

The authors used consciences a lot, for example.

we can find that the ....

we build a prototype....

we can conclude that....

we choose the air.....

we apply an instantaneous .....

- The conclusions should be extended with more future work.

Author Response

Response to Reviewer 1

Comments and Suggestions for Authors

This paper presents modeling, design and suspension force analysis of a novel AC six-pole heteropolar hybrid magnetic bearing. The article is well organized. Some comments and suggestions are given here:

Point 1:  In introduction, the main contribution and originality should be explained in more detail.

Response 1: Thanks very much for reviewer’s hard work. In order to highlight the main contributions and originality, we have revised the abstract and introduction, which have been marked in the revised version. The main contributions and originality in this paper is to research a new AC six-pole heteropolar HMB with large suspension.

Point 2: Interpretation of results needs to be improved.

Response 2: Thanks very much for reviewer’s good suggestions. We carefully revised the full text, focusing on the restatement of each analysis result.

Point 3: What is the sampling frequency to use for the control system?

Response 3: Thanks very much for reviewer’s good suggestions. In control system, the STM32H743 controller is used. This controller has good performances: 480 MHz fCPU/, 2424 CoreMark /1027 DMIPS executing from Flash memory, with 0-wait states thanks to its L1 cache L1 cache (16 Kbytes of I-cache +16 Kbytes of D-cache) boosting execution performance from external memories. The sampling frequency is 20KHz, in which the rotor displacement changes can be sampled in real time.

Point 4:The authors used consciences a lot, for example.

we can find that the ....

we build a prototype....

we can conclude that....

we choose the air.....

we apply an instantaneous .....

Response 4: Thanks very much for reviewer’s good suggestions. In this paper, there are 15 improper expressions mentioned above. We have carefully revised these expressions in accordance with the revised opinions.

Point 5:The conclusions should be extended with more future work.

Point5: Thanks very much for reviewer’s good suggestions. The conclusions are rewritten, in which we point that the future word is to use this HMB to support the motor rotor, and test its suspension performance in the high-speed rotating state.

Thanks again for the expert’s hard work.

 

Reviewer 2 Report

11- Contribution is not well emphasized. What is the main innovation of the work? Please point it out at the end of the introduction clearly.

2-  Abstract is confusing. Please highly improve it.

3- Why this method is employed? What is the main purpose? Please elucidate and enhance enough explanation in addition to more references in the section.

4-   How equation (9) is given? It’s disputed.

5-   Figure 9 is not clear enough. please correct it

6-  Intelligent methods are missing in the introduction. How fuzzy type -3 and type -2 as an innovative scheme can develop your study? Its extremely recommended to refer to the following paper and bring it into your introduction.

* A robust control of a class of induction motors using rough type-2 fuzzy neural networks
*A Neural Controller for Induction Motors: Fractional-Order Stability Analysis and Online Learning Algorithm

7-  Can the results of this method be valid for another similar system? Please point it out in your results and conclusion and describe the weakness of the work too.

Author Response

Response to Reviewer 2

Response: Thanks for the expert’s hard work; we have carefully revised the paper. But I think that are there some problems with the suggestions? If expert has other new suggestions, please send them to me again.

Author Response File: Author Response.pdf