基于正序故障分量的电流相位差动保护的仿真.pdf

Advances in Energy and Power Engineering  电力与能源进展, 2015, 3(5), 139‐151  Published Online October 2015 in Hans. /journal/aepe  /10.12677/aepe.2015.35020    Current Phase Dynamic Protection Simulation Based on Positive Sequence Fault Component Lemeng Di, Jijiang Song, Hengfu Liang School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo Shandong  Email: dlm1202@, songniu@, 478861442@    th th th Received: Oct. 7 , 2015; accepted: Oct. 26 , 2015; published: Oct. 29 , 2015  Copyright © 2015 by authors and Hans Publishers Inc.  This work is licensed under the Creative Commons Attribution International License (CC BY).  /licenses/by/4.0/    Abstract Based on the superposition principle, this paper gives the positive sequence fault component con‐ cept and its characteristics, elaborates the application principle of positive sequence fault compo‐ nent in the current phase longitudinal differential protection, and illustrates the advantages of the protection principle based on positive sequence fault component compared with the traditional one. Using the application of positive sequence fault component in the current phase longitudinal differential protection for an example, through MATLAB simulation verification, it is demonstrated that using positive sequence fault component to achieve the current phase longitudinal differential protection is more sensitive and reliable, and also can overcome the disadvantages of the conven‐ tional protection. Keywords Positive Sequence Fault Components, Current Phase Longitudinal Differential Protection, MATLAB, Simulation 基于正序故障分