MSVR & Operator-Based System Design of Intelligent MIMO Sensorless Control for Microreactor Devices

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

This manuscript delves into the exploration of advancing temperature control in microreactors, building upon the foundation laid by the authors' prior research. The authors propose a design of multi-input, multi-output nonlinear control system for microreactors using operator theory that is able to control two different temperatures. A sensorless control method using M-SVR with generalized Gaussian kernel was incorporated into the MIMO nonlinear control system. While the work is interesting, the reviewer has identified specific points that need to be addressed before the manuscript can be considered for publication.

1) The manuscript heavily relies on mathematical equations. To enhance clarity, I recommend reorganizing the content by moving the majority of equations into the Supplemental Information. Retaining only the main results in the main content will improve readability and facilitate a clearer understanding of the key findings.

2) Some letters in the equations, such as ud2 in Eq(3), Omega a1 in Eq(7), Omega a2 in Eq(8), etc., are not listed or explained. It is crucial to address this issue by thoroughly checking all equations and providing comprehensive explanations for the missing letters. This clarification will enhance the accessibility of the mathematical content.

3) n section 2.3.3, a real-coded genetic algorithm is utilized for hyperparameter optimization, with 50 generations and 20 individuals. However, the rationale behind choosing these specific numbers is not explained. Could the authors provide a clear explanation for the selection of 50 generations and 20 individuals in the genetic algorithm for hyperparameter optimization?

4) In line 146, details about the training data, including the quantity used, are not specified. Additionally, the manual adjustment of results mentioned in line 147 requires clarification. The authors should provide information on the nature and size of the training data and elaborate on the manual adjustments made to obtain the parameter values presented in Table 3 and Table 4.

5) In section 4, it is unclear why the values presented in Table 7 were chosen for simulation. Please provide a detailed explanation of the rationale behind using these specific values.

6) It would be beneficial for the manuscript to include a section discussing the comparison between simulation results and experimental outcomes. Integrating and analyzing both sets of results would enhance the comprehensiveness of the study and provide valuable insights into the practical applicability of the proposed control system.

 

Comments on the Quality of English Language

The clarity of the English in this context could be enhanced for better understanding.

Author Response

Please see the attached file. Many thanks.

Author Response File: Author Response.docx

Reviewer 2 Report

Comments and Suggestions for Authors

 In this paper, a single-input/output nonlinear control system was proposed.  the work itself is concrete and could be useful for further practical applications. I can recommend this work to be published

Comments on the Quality of English Language

GOOD

Author Response

Please see the attached file. Many thanks.

Author Response File: Author Response.docx

Reviewer 3 Report

Comments and Suggestions for Authors

This article proposes a new multiple input multiple output temperature control system for microreactors. Unlike traditional methods, this approach can control two temperatures within the microreactor. Additionally, a multioutput support vector regression machine learning model based on a generalized Gaussian kernel is created, enabling sensorless control.

While the manuscript is rich in content, there are several issues that need attention.

1. Numerous typos are present in the manuscript. On Page 2, lines 73-74, 'Chapter 3 describes the results of simulation and actual machine experiments using the control system designed in Chapter 4' should be corrected to 'Chapter 4 describes the results of simulation and actual machine experiments using the control system designed in Chapter 3.' On Page 10, line 170, the text 'xxx f and ' is incomplete and lacks content after 'and.' On Page 14, line 250, Page 16, lines 254-255, and Page 17, line 261, 'Figures xx' should use the singular form 'Figure.'

2. More recent works concerning key technique in MIMO systems should be reviewed, e.g., 2D-DOA estimation for coherent signals via a polarized uniform rectangular array.

3. The title of Figure 1 does not support text. It is suggested that the title of Figure 1 be changed to 'Model of Microreactor and Heat Spreader.'

4. Ensure that images and tables are appropriately sized and positioned to avoid excessive blank space on Page 3 and maintain the manuscript's aesthetic appeal.

5. The typesetting of expressions and the use of symbols are suboptimal, with many symbols lacking corresponding explanations in the text. For example, it is unclear what bold italic represents, and the interpretation of bold '1' needs clarification. It is advisable to study high-quality literature to improve the presentation of mathematical expressions.

 

6. Figure 4 is not easily understood. Adding a specific description of how the control system eliminates the impact of disturbances would enhance its value.

Comments on the Quality of English Language

While the manuscript is rich in content, there are several issues that need attention.

1. Numerous typos are present in the manuscript. On Page 2, lines 73-74, 'Chapter 3 describes the results of simulation and actual machine experiments using the control system designed in Chapter 4' should be corrected to 'Chapter 4 describes the results of simulation and actual machine experiments using the control system designed in Chapter 3.' On Page 10, line 170, the text 'xxx f and ' is incomplete and lacks content after 'and.' On Page 14, line 250, Page 16, lines 254-255, and Page 17, line 261, 'Figures xx' should use the singular form 'Figure.'

2. More recent works concerning key technique in MIMO systems should be reviewed, e.g., 2D-DOA estimation for coherent signals via a polarized uniform rectangular array.

3. The title of Figure 1 does not support text. It is suggested that the title of Figure 1 be changed to 'Model of Microreactor and Heat Spreader.'

4. Ensure that images and tables are appropriately sized and positioned to avoid excessive blank space on Page 3 and maintain the manuscript's aesthetic appeal.

5. The typesetting of expressions and the use of symbols are suboptimal, with many symbols lacking corresponding explanations in the text. For example, it is unclear what bold italic represents, and the interpretation of bold '1' needs clarification. It is advisable to study high-quality literature to improve the presentation of mathematical expressions.

6. Figure 4 is not easily understood. Adding a specific description of how the control system eliminates the impact of disturbances would enhance its value.

Author Response

Please see the attached file. Many thanks.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

I agree that the manuscript could be published in its present form.

Reviewer 3 Report

Comments and Suggestions for Authors

No further comment.