**5. Conclusions**

In order to improve the generation-side security and the coordination performance between the power system generation and grid sides, the existing power generationside protection mode is improved through the idea of a multi-information fusion-based hierarchical protection system.


**Author Contributions:** Conceptualization, X.Y. (Xianggen Yin), Y.W. and J.Q.; data curation, X.Y. (Xianggen Yin), Y.W., J.Q. and X.Y. (Xin Yin); Formal analysis, X.Y. (Xianggen Yin); funding acquisition, X.Y. (Xianggen Yin); investigation, Y.W., J.Q., W.X. (Wen Xu), X.Y. (Xin Yin) and L.J.; methodology, X.Y. (Xianggen Yin) and Y.W.; resources, X.Y. (Xianggen Yin), Y.W., W.X. (Wen Xu), X.Y. (Xin Yin) and L.J.; validation, J.Q. and W.X. (Wen Xu); writing—original draft, X.Y. (Xianggen Yin), Y.W. and J.Q.; writing—review and editing, Y.W., W.X. (Wen Xu), L.J. and W.X. (Wei Xi). All authors have read and agreed to the published version of the manuscript.

**Funding:** This work was supported by the key project of smart grid technology and equipment of national key research and development plan of China under Grant 2016YFB0900600.

**Institutional Review Board Statement:** Not applicable. **Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Data is contained within the article.

**Conflicts of Interest:** The authors declare no conflict of interest.
