Author(s)

Qingxin Meng ¹, Shuang Yan ¹

Affiliation(s)

¹ State Grid Tong Hua Power Supply Company, State Grid Jilin Electric Power Company Limited, Tonghua, Jilin, China

Corresponding Author

Qingxin Meng

ABSTRACT

The purpose of this paper is to discuss the integration and coordination strategy of relay protection system in smart grid, focusing on analyzing the main problems existing in the current system and proposing corresponding solutions. The study shows that the overall stability and safety of the power grid can be significantly improved by optimizing the configuration of protection equipment and improving the reliability and accuracy of communication technology. In the experiments, the detection accuracy of fault detection based on XGBoost algorithm under short circuit, overload, grounding and line fault types is 98%, 97%, 96% and 95%, respectively, which is significantly better than the decision tree and random forest algorithms. Meanwhile, the false alarm rate and missed alarm rate of the XGBoost-based algorithm are between 2-3% and 1-3%, respectively. From the conclusion of the data, the XGBoost-based algorithm is excellent in both fault detection and communication delay, and has high application value.

KEYWORDS

Smart Grid, Medium Relay Protection System, XGBoost Algorithm, Fault Detection, Coordination Strategy

CITE THIS PAPER

Qingxin Meng, Shuang Yan, Integration and Coordination Strategy of Relay Protection System in Smart Grid. Journal of Electrotechnology, Electrical Engineering and Management (2024) Vol. 7: 28-37. DOI: http://dx.doi.org/10.23977/jeeem.2024.070205.

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