1. A novel sufficient protection criterion based on adjacent maximal current differences
- Author
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Chengjie Cao, Jiaqi Zheng, Jiayi Ren, Fangyuan Tian, and Jinghui Sun
- Subjects
Maximal current differences ,Distribution networks ,Computer science ,020209 energy ,Adjacent lines ,02 engineering and technology ,Fault (power engineering) ,General Energy ,Electric power transmission ,020401 chemical engineering ,Distribution system ,Transmission line ,Control theory ,Sufficient criterion ,0202 electrical engineering, electronic engineering, information engineering ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,0204 chemical engineering ,Current (fluid) ,MATLAB ,lcsh:TK1-9971 ,Downstream (networking) ,computer ,computer.programming_language - Abstract
It is hard for traditional current protection to solve problems of distribution networks with highly penetrative DGs. The fault information required by the most protection methods cannot be provided by the poor infrastructure of distribution networks. In this paper, a sufficient criterion based on the maximal current differences between adjacent transmission lines is proposed to promote selective configuration of protection scheme. The principle of the criterion and its advantages on current protection application are analyzed. The suppress influence of DG on the current of downstream transmission line current can be processed without high demand for communication in distribution network with DGs. Through the simulation in Matlab/Simulink, the effectiveness of the proposed criterion is validated.
- Published
- 2020