Differential protection strategy for distribution network based on 5G communication

Abstract With the high penetration of distributed generation and gradual increase in loop network structures, existing over‐current protection distribution networks is difficult to apply. The use current differential has become an ideal solution, performance commercialization 5G communication provides effective way solve problem channel transmission. Aiming at based on 5G, this paper adopted adaptive frequency conversion transmission mechanism significantly reduce data flow protection. In terms strategy, allowable signal startup logic are separated, a novel action method suitable for weak infeed proposed. strategy shortens time under wireless communication. Furthermore, comprehensive synchronization scheme using zero‐crossing forward sampling points cycle numbers second pulse was established. This can effectively improve reliability Finally, proposed study verified dynamic model experiment real‐time digital simulation (RTDS).