PONE-D-23-32855Improved Assembly DC Circuit Breaker Based on Resonant Current InjectionPLOS ONE

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PLOS ONE

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Additional Editor Comments:

A major revision has to be made on the paper, and the authors should carefully address the issues raised by reviewers and improve the paper accordingly.

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Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: Yes

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2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: Yes

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3. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: Yes

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4. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: Yes

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5. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: 1. Provide specific parameter design specifications. This paper mentions CI-MPACB can cut off DC fault lines, but it does not provide specific details about the parameter design.

2. Resonant current injection is primarily designed for AC circuit breakers, DC circuits have a continuous and unidirectional flow of current, making it challenging to achieve the same resonant conditions. So how to achieve the same resonant conditions?

3. How Transient and Switching Stress are managed? In DC circuit breakers, resonant conditions may lead to high transient voltages and switching stresses. These transients can pose challenges in terms of insulation coordination and may require additional protective measures to prevent insulation breakdown and damage to the breaker components.

4. Achieving resonant current injection in DC circuit breakers often requires complex control algorithms and sophisticated electronic components. This increases the risk of malfunctions. So, what are the measures taken to rectify these malfunctions.

5. DC systems vary widely in terms of voltage levels, current ratings, and applications. Achieving a universal resonant current injection solution that is compatible with all DC systems is challenging, so how you will achieve this?

6. The additional complexity introduced by resonant current injection in DC circuit breakers may lead to increased maintenance requirements. So it may increase the cost. So, what is the remedy for this?

Reviewer #2: In this paper, a multiport assembly circuit breaker based on current injection (CI-MPACB) is proposed, which is able to generate a resonant current with increasing amplitude by controlling the duty cycle of Integrated Gate-Commutated Thyristors (IGCTs). Then the resonant current is injected into the SBS to generate current zero crossing and arc extinction. This article raises an interesting idea, but several issues must be addressed to clarify the work's novelty and contribution and some of the assumptions.

1. Existing simulations or results do not take into account the inductance of the DC line or the flat-wave reactor. Do they affect the simulation results?

2. There is no clear description of the working principle of the circuit breaker. It is recommended to combine time series and working process in detail.

3. The multi-port circuit breaker proposed in this paper has not been verified by simulation.

4. How to calculate the economy of multi-port circuit breaker?

5. Some experiments and results have not been compared with existing work. I think a comparison of results is needed to highlight the innovation and contribution of this paper.

6. It is also hoped that the author can show the current and voltage waveforms of T1 and T2 at work.

7. It is suggested to arrange the structure of the article reasonably in order to enhance the logic and readability of the article.

8. There are some mistakes in the units and variables in the article, please correct them in time.

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Reviewer #1: No

Reviewer #2: No

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Attachments

Attachment

Submitted filename: Reviewr comments_PONE.pdf

Improved Assembly DC Circuit Breaker Based on Resonant Current Injection

PONE-D-23-32855R1

Dear Dr. Cui,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

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Kind regards,

Arvind R. Singh, Ph.D

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Accept

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

1. If the authors have adequately addressed your comments raised in a previous round of review and you feel that this manuscript is now acceptable for publication, you may indicate that here to bypass the “Comments to the Author” section, enter your conflict of interest statement in the “Confidential to Editor” section, and submit your "Accept" recommendation.

Reviewer #1: All comments have been addressed

Reviewer #2: (No Response)

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2. Is the manuscript technically sound, and do the data support the conclusions?

The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented.

Reviewer #1: Yes

Reviewer #2: (No Response)

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3. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: (No Response)

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4. Have the authors made all data underlying the findings in their manuscript fully available?

The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified.

Reviewer #1: Yes

Reviewer #2: (No Response)

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5. Is the manuscript presented in an intelligible fashion and written in standard English?

PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here.

Reviewer #1: Yes

Reviewer #2: (No Response)

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6. Review Comments to the Author

Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters)

Reviewer #1: (No Response)

Reviewer #2: (No Response)

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7. PLOS authors have the option to publish the peer review history of their article (what does this mean?). If published, this will include your full peer review and any attached files.

If you choose “no”, your identity will remain anonymous but your review may still be made public.

Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy.

Reviewer #1: No

Reviewer #2: No

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