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Volume 12
Issue 10
10.3390/app12105053
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Article
Peer-Review Record

An Intelligent Nonlinear Control Method for the Multistage Electromechanical Servo System

Appl. Sci. 2022, 12(10), 5053; https://doi.org/10.3390/app12105053
by Yunxiao Lian 1, Yong Zhou 1,2,*, Jianxin Zhang 3,4, Shangjun Ma 2,3 and Shuai Wu 1
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Appl. Sci. 2022, 12(10), 5053; https://doi.org/10.3390/app12105053
Submission received: 21 April 2022 / Revised: 8 May 2022 / Accepted: 16 May 2022 / Published: 17 May 2022
(This article belongs to the Special Issue AI Applications in the Industrial Technologies)

Round 1

Reviewer 1 Report

The authors are kindly asked to consider the following comments:

Q1- the abbreviation of “PMSM” is not defined in Keywords

Q2- Before designing the control system, it is necessary to provide an appropriate analysis of dynamic behaviors, nonlinearity, stability conditions, non-minimal phase behaviors, and interactions between the system variables. Procedure of designing control system is unclear.

Q3- The authors should use the symbol ® or TM for the software employed, for example MATLAB® (The MathWorks, Inc., Natick, MA, USA).  

Q4- Simulink is a simulation package for MATLAB and this should be indicated.

Q5- On page 4, line 129, the reference link is missing.

Q6- How was the employed model for designing the controller validated?

Q7- The robustness of the designed control system should be evaluated.

Q8 - Please remove the grayscale background in Figure 9

Q9- Fonts are very small in plots.

Q10- How was the EMA frequency range chosen? Please elaborate.

Q11- More explanations are required for experimental setup and its components including sensors, data acquisition and so on.

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 2 Report

The paper presents effect results of a study on the development of the non-linear drive control system. The work contains a clearly detailed mathematical description of the system. There are comments on the work.

  1. In the figure 2, you need to check the direction of the arrows ua, ub, uc. And also to indicate the parameters and directions of the arrows from the SVPWM block
  2. In general, the description of the circuit in Figure 2 and the mathematical description does not include all the parameters of the system. The presented system model does not include sufficient information about the calculation of the parameters u_alfa, u_betta, ua, ub, uc.
  3. Figure 8 is not informative, it is better to present it as a diagram, rather than pictures of parts of the system (images are too small to get an idea of ​​​​the structure of the system)
  4. It is not clear how the data in Figure 4 was obtained. What is the reason why torque reaches its maximum at the 4-th second. For informational content, it is better to compare diagram 4 with the angle of rotation of the platform.

Author Response

Please see the attachment

Author Response File: Author Response.docx

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