Enhanced Coil Design for Inductive Power-Transfer-Based Power Supply in Medium-Voltage Direct Current Sensors

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

The prototype design is not tightly integrated with the actual application scenarios, e.g. what are the input voltage and input power requirements for MVDC current sensors? How does the prototype actually power the MVDC current sensor?

Comments on the Quality of English Language

No comments.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

What are the potential applications of this IPT system?

How does the type of environment between the two coils (primary and secondary) influence? If it is vacuum, moist air, dry air?

If the working frequency increases to a frequency higher than 100KHz, can a better yield be obtained? Or a lower frequency? Why the frequency of 100kHz?

Noises also appear during the DC-AC conversion in the primary coil. Are these noises transmitted in the secondary coil? If they are transmitted, how are they removed so they don't overlap the useful signal?

In Table 1, the image shows YCH-H003 which is mounted on a radiator. Does the developed system require a radiator considering that it can transfer high powers?

The bibliographic sources used are from recent years, which proves that they are aware of the latest research in this domain.

Author Response

Please see the attachment.

Author Response File: Author Response.pdf

Reviewer 3 Report

Comments and Suggestions for Authors

Aiming to provide high power while ensuring insulation to replace the optical converter to power MVDC systems, this paper proposes a design method for an IPT-based power supply with enhanced coil design. The design method is discussed with great details and well supported by good simulation and experimental results. Please consider the following points for improvements:

1. In your abstract, could you clarify "there are limitations in achieving the rated output power of conventional power supplies that use optical converters". It causes misunderstanding.

2. The major problem of your paper is: you completely discarded optimal converter and use electrical converter (IPT-based half-bridge inverter) as replacement. However, optical converter has the advantage that it has no electromagnetic interference with the main power stage, while power converters have EMI issues. Please comment on that. Additionally, please discuss the disadvantages of your approach.

3. Please provide a detailed literature review regarding the auxiliary power supply for MVDC applications in your introduction. This part is totally missing.

4. Please discuss how do you design the value of Lp.

Comments on the Quality of English Language

The writing is authentic and fluent

Author Response

Please see the attachment.

Author Response File: Author Response.pdf