Reviewer: 4Comments to the AuthorTh

Reviewer: 4Comments to the AuthorThe authors discuss the application of the commercial software Matcont to the analysis of bifurcation phenomena in a PMSG-based wind farm system. As an academic application, the analysis is interesting, but several issues prevent further consideration of the paper in its present form.a) The introductory section is too long. The authors could save valuable space by focusing on the novel contributions of the paper relative to previous work.b) The paper is not well structured. Sections II.A and II.B redundantly present information found in many existing papers. What is new? What are the practical criteria to determine the onset of bifurcations?c) There are several drawbacks to the application study. Rather than essentially presenting the presence of oscillations, authors are encouraged to propose and test useful criteria to determine the onset of oscillations.d) The approach appears to be mainly visual. Phase plane analyses are limited because only two parameters can be varied. In a real-world scenario, how can these parameters be determined?e) Additionally, comparisons with other approaches should be provided, including eigenvalue studies close to the bifurcations.In summary, the matter of originality needs to be thoroughly addressed, going beyond the application of a commercial software.