PONE-D-24-04478Research on State Machine Control Optimization of Double-stack Fuel Cell/Super Capacitor Hybrid SystemPLOS ONE

Dear Dr. Li,

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Academic Editor

PLOS ONE

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Reviewers' comments:

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Comments to the Author

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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

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

Reviewer #1: N/A

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Reviewer #1: No

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Reviewer #1: 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: Good paper but requires the following revisions:

1. Abstract: should have a clear statement of the paper main findings and its significance.

2. Introduction: rephrase te following statement to ensure its clarity and brevity.

With the development of fuel cell systems towards high power, high power fuel cells in addition to the final installation problems, due to the large size, there may be mechanical failure, resulting in gas leakage; It may also lead to gas non-uniformity in the internal reaction of the fuel cell [1], resulting in poor voltage consistency of each single cell in the stack, increasing the difficulty of system operation.

3. Introduction: proofread the paper before submission for review. For example, see the following unnecessary repetition:

the train can reach a maximum speed of 140km per hour, a maximum speed of 140km per hour.

4. Paper should have an abbreviation list, or all symbols should be identified when first presented.

5. Page 10: Add a reference after the following statement:

Feroldi proposed using a state machine policy to ensure that the fuel cell in the hybrid energy system operates in the high-efficiency region, as shown in Figure 2.

6. Page 10: Give brief explanation of the multiple peaks in relation to inflection point.

The efficiency chart of multi-stack fuel cell systems exhibits multiple peaks due to the presence of the inflection point.

7. Page 11: repetition of a word:

The strategy architecture diagram is shown in Figure Figure 5,

8. Table1: last row is bold; is there a significance for that or just typo.

9. Table 2: column title should be in English

10. Figure 12 a, b, c: explain the meaning and significance of the spikes.

11. Section 3.4/paragraph one: explain the relationship between stress and delta P.

When the majority of the ΔP values fall into the small range near "0," it indicates low operational stress on the fuel cell.

12. Table 3: correct the table title, it is table 3 and not fig 3. In addition, add units or % to hydrogen consumption and operational stress analysis.

13. Conclusion: rewrite the first sentence. Maybe you can start by saying the paper propose…. Or in these investigations it is proposed….

Propose an energy management strategy for a dual-stack fuel cell/supercapacitor hybrid system that combines Equivalent Consumption Minimization (ECM) and a state machine approach.

14. Conclusion: Why the poorest performing cell? Clarify in the previous sections and briefly state in the conclusion.

Reverse verification reveals that in full startup mode, the maximum efficiency of the dual-stack fuel cell system is determined by the poorest-performing fuel cell system.

15. Conclusion: second paragraph requires writing. You may state … the investigation aimed to….

Aim to develop an energy management strategy for a multi-source hybrid system with the goal of operating the system with lower energy consumption while increasing the operating time of the fuel cell in its high-efficiency range

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Reviewer #1: No

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Research on State Machine Control Optimization of Double-stack Fuel Cell/Super Capacitor Hybrid System

PONE-D-24-04478R1

Dear Dr. Li,

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,

Jim P. Zheng

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

Reviewers' comments: