Work

Research on detection and protection technology of DC residual current

Year: 2024

Type: conference-paper

Abstract: To realize that the residual current device can accurately and quickly detect the fault when the fluctuating DC residual current occurs in the system and improve the system’s safety, a DC residual current detection and protection method based on VMD was proposed. Particle Swarm Optimization (PSO) was used to optimize the penalty factor and the number of decomposition layers of VMD. The minimum envelope entropy of the residual current signal is used as the fitness function to obtain the optimal combination. The criterion of fault occurrence is established based on the optimal modal component mutation characteristic of the residual current decomposed by VMD. Experiments show that this method can identify faults quickly and effectively when pulsating DC residual current is generated in the system.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/2876/1/012006

Authors: Ruixiong Yang, Yong Chen, Kai Xu, Shuping Gao

Institutions: Guangdong Power Grid Company (China), Xi'an University of Science and Technology, Shaanxi University of Science and Technology

Language: English

Topic: Electrical Fault Detection and Protection

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4404068712

FWCI: 1.612

Cites: 1

Cited by: 2

Related to: 10