A Stabilization Control Strategy for Wind Energy Storage Microgrid Based on Improved Virtual Synchronous Generator

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

I read with interest the article entitled: “Improved low-voltage ride-through control strategy for new energy microgrids based on energy storage VSG”.

The reviewer's only comment concerns the fact that the article does not present a simulation model created in the Matlab/Simulink environment. Only one sentence mentioned its use. It would be worth presenting a simulation model on the basis of which the simulation results are presented. This would increase the credibility of the presented results.

 

Author Response

Many thanks to the experts and editors who handled our article! Please see the attachment！

Author Response File: Author Response.docx

Reviewer 2 Report

Comments and Suggestions for Authors

This paper presents a wind-solar hybrid generation system with battery storage on the DC side and proposes a Low voltage ride-through (LVRT) control strategy based on improved VSG for grid-connected inverters. The control strategy employs comprehensive limiting technology combining virtual impedance and vector limited current, ensuring that the VSG exhibits good dynamic power support characteristics during symmetric faults by adjusting the reactive power command value. Applying the following comments and suggestions will improve the current version of the manuscript.

1)     Both the title and abstract needs a through revision. Title of the manuscript is not conveying the intended contribution of the manuscript. The abstract is missing a brief quantitative discussion of the obtained results.

2)     In introduction section, (i) novelty of the study is missing, (ii) terminologies are introduced without defining them, (iii) compounding of references should be avoided, and (iv) a paragraph at the end describing the organization of the manuscript should be added.

3)     It is recommended add more recent studies in the literature review.

4)     The discussion of hybrid AC-DC grid structure provided in lines 98-109 should be complemented with a schematic diagram for better understanding.

5)     In section 2.1, variables are introduced well before they are used in equations and shown in schematic figures. It is recommended to define these variables where they are used.

6)     It is not clear whether bi-directional DC/DC converter was used to incorporate the energy storage system into the DC side of the grid-side?

7)     It is not clear how does authors comes up with equation (1), describing the sag power?

8)     Figures 1 & 2 showing the wind storage topology and optical storage topology are not explained well enough.

9)     To protect the converter against the current fault, what strategy is proposed in the model?

10) What was the significance/source of the simulation environment parameters?

11) Figures must be improved because most of them are illegible.

12) The Conclusion section should be expanded and more details regarding the assumptions and limitations.

Comments on the Quality of English Language

Moderate editing of English language required

Author Response

Many thanks to the experts and editors who handled our article! Please see the attachment.

Author Response File: Author Response.docx

Round 2

Reviewer 2 Report

Comments and Suggestions for Authors

The manuscript has been significantly improved. I would like to recommend the manuscript for publication.

Comments on the Quality of English Language

Minor editing of English language required