Modeling and Analysis of a Novel Levitation Magnet with Damping Coils for High-Speed Maglev Train

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

This paper proposes a better optimization measure for the magnet pole fault. The magnet and damper coil model are built and analyzed accurately, at the same time, a large number of experiments are carried out. The paper has good innovation and significance. there are some questions need to be answered and modified.

1. The name of Fig.5 is not right and should be related to the distribution of fluxes.

2. In the formula (8), the α should be constants, so how can we determine them?

3. Formula (9) represents the damper coil becomes a power source and is connected in series with the resistor. In the paper, there is no figure can show the relationship, so it can be added to the Fig.10 and make the relationship clearer.

4. In part 2.2 of page 5, Why are the amplitude 10A and frequency 1 Hz selected for the inductive voltage test in ground.

5. This paper focuses on the EMS type, in which the active electromagnetic control plays an important role, so some references about EMS control can be added.

6. Please check and correct the grammar in the paper.

Comments on the Quality of English Language

Some language and formatting errors need to be corrected.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

Dear authors, please improve your english language. Some sentences are very bad formulated.

I appreciate your topic, it is very useful and interesting for me.

Comments on the Quality of English Language

Please improve english language.

Author Response

Thank you very much for taking the time to review this manuscript. We appreciate that you have given an excellent evaluation to the research content of this paper. Based on the comments, we have invited native English speakers to assist in revising the English language in the paper.

Reviewer 3 Report

Comments and Suggestions for Authors

The paper descripted clearly the research background and the research process. A novel measure is put forward for the existing magnet of high speed EMS  maglev. The effect of damping coil is proved by means of analysis of mathmatical model, nuemrical simulation, and rig testing. I am satisfied on it.

The paper is wirtten well. Minor improvement suggestions: 

1) EDS,SC, EMS, BS, HTS: abbreviation should be explained while their first occurring; 

2) Line 163: pls. specified speed range

3) Section 2.2: is there a corresponding relationship between wave frequency of coil current mentioned in ground test and speed mentioned in actual vehicle test?

Author Response

Please see the attachment.

Author Response File: Author Response.pdf