Methodology for the Surveillance the Voltage Supply in Public Buildings Using the ITIC Curve and Python Programming

Round 1

Reviewer 1 Report

Line 14

PQ problems - Missing Acronym

Line 17 to Line 20

Too long, needs to be rephrased

Line 18

IoT - Missing Acronym

Line 22

ITIC - Missing Acronym

Line 34

has had a direct impact on the final power quality (PQ) - Reference of the statement is missing

Line 59

Missing reference

Line 68

it's - it is

won't - will not

Line 69

ITIC was mentioned on the abstract, so I suggest to introduce it there (acronym)

Line 71

analyzing - analysing  - I suggest check everything else and make sure it is for British - English not US English

Analyzing is for US – English

Analysing is British – English

Line 73

The main advantage... - Reference missing

Line 76

Depending of - Depending on

Line 80

Reference missing

Line 83

90% - reference

Line 84

summarizes - summarises - Also, I would suggest to keep the same pattern when referring to sections, do not mix text with letter, keep the same pattern

Line 106

Running Python - Running on Python

Line 108

Multiples parameters - Multiple parameters

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For the representation of voltage sags and swells, it has been used a function similar to one developed by Aggiag et al. in [9],

For the representation of voltage sags and swells, a function similar to one developed by Aggiag et al. in [9], has been used

Line 142

I would suggest for the future if you use existing diagrams try to change them and make them unique because it does not look good to use the same diagram that someone else have used.

Line 180

However, instantaneous voltage data are also available on the PC, being acquired at a sampling rate of 10k samples

However, instantaneous voltage data are also available on the PC. These data are acquired at a sampling rate of 10k samples

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Figure 4: - Figure 4. Please change the rest to "."

Line 191

Its been programmed - it has been programmed - Also, I would suggest adding more technical details of how the Python and MATLAB program works.

Line 204

All these sags, due to their magnitude and duration, are outside the safety zone established by the ITIC curve, as can be seen in Figure 6.

The magnitude and duration of all these sags exceed the safety zone established by the ITIC curve, as shown in Figure 6.

Line 209

Due to this, we can state with complete certainty that the equipment will stop working when subjected to a voltage sag of such magnitude and duration.

This means that if a voltage sag of this magnitude and duration occurs, the equipment will not function. 

Avoid using "we", "I"

Please also consider the following aspects: 

• Add more technical details about the Python and MATLAB program because it is unclear how it works
• Explain in more detail their findings (Results)

Author Response

Thank you for your comments. Please, find attached a document with all the questions and the answers we have given.

Author Response File: Author Response.docx

Reviewer 2 Report

This paper does the detection of voltage sag and swell from the implementation view. Overall, is a good "report", and still needs improvement to appear like an "article". Please see my concerns below:

1- The list of references in the whole paper and introduction is very few.

2- Explain how the paper can be applied to protection goals as discussed in the abstract.

3- How about having a comparison with other implementation methods?

4- Sags/swell are two power-quality disturbances in electrical power systems. Hence, it is not relevant to bring them in the paper as "electrical disturbance".

5- Could you add some results regarding swells too?

Author Response

Thank you for your comments. Attached you will find a document with all the questions you asked and the answers we have given you.

Author Response File: Author Response.docx

Reviewer 3 Report

This study presented a methodology for detecting the power quality distortions: voltage sag and swells. The paper is fairly organized and presented. Please find my comments as follows.

Python is a programming language; it is not a methodology. Also, in this study, only voltage sag and swells are considered, not all electrical disturbances. Thus, the title should be modified. 

The author should provide reasons why only voltage sag and swells are considered. 

The contribution(s) of this work is not clearly explained.

In the abstract, it is mentioned that the proposed method can manage big data. However, there is no information on how the model can manage big data (volume, velocity, variety, etc.).

The literature is not enough, so it should be updated and improved. In this section, the contribution of the works should be clearly added.

The presented result should be compared and justified by other methods in the literature.

I recommend authors to re-write the conclusion.

Author Response

Thank you for your comments. Attached you will find a document with all the questions you asked and the answers we have given you.

Author Response File: Author Response.docx

Round 2

Reviewer 1 Report

Thanks for the changes, it looks much better than before.

Author Response

Thank you for your comments

Reviewer 2 Report

The authors have tried to answer my concerns. However the way they choosed is not proper while adressing the comments.

1- Any changes in the paper must be clear from the letter to reviewrs anwsers.

2- Any answer to the reviewrs must be somehow added to the papers.

Author Response

Please see the attachment.

Author Response File: Author Response.docx

Reviewer 3 Report

The main contributions should be clearly explained in the abstract and introduction as well.

The literature review can be updated considering new studies in recent years.

This paper talks about managing big data; however, even if only the main characteristics of big data (volume, variety, and velocity) are considered, this paper does not address any of them. Authors should either delete the big data or provide solid proof regarding this matter.

The authors mentioned: "Python is up to 4 times faster than LabVIEW"; however, this is not a fair comparison unless authors compare their model with other programming languages such as C/C++, java, and Julia.

Author Response

Please see the attachment.

Author Response File: Author Response.docx