This article presents a new kind of class of all after composed set and fore composed set using the arbitrary binary relation based on nano topological space. We express the notion of nano equality, and nano inclusion...This article presents a new kind of class of all after composed set and fore composed set using the arbitrary binary relation based on nano topological space. We express the notion of nano equality, and nano inclusion and nano power set regarding binary relation based on nano topology. Also, we discuss their properties. Finally, the real life application of network topology is studied.展开更多
The equalization management system is an essential guarantee for the safe,stable,and efficient operation of the power battery pack,mainly composed of the topology of the equalization circuit and the corresponding cont...The equalization management system is an essential guarantee for the safe,stable,and efficient operation of the power battery pack,mainly composed of the topology of the equalization circuit and the corresponding control strategy.This article proposes a novel active balancing control strategy to address the issue of individual cell energy imbalance in battery packs.Firstly,to achieve energy equalization under complex conditions,a two-layer equalization circuit topology is designed,and the efficiency and loss of energy transfer in the equalization process are studied.Furthermore,a directed graph-based approach was proposed to represent the circuit topology equivalently as a multi-weighted network.Combined with a multi-weighted optimal matching algorithm,aims to determine the optimal energy transfer path and reduce equalization losses.In addition,a fuzzy controller that can dynamically adjust the equalization current with the state parameter of the cell as the input condition is designed to optimize the equalization efficiency.Matlab/Simulink software is used to build and simulate the model.The experimental results indicate that,under the same static state,the newly proposed control strategy improves efficiency by 6.08%and enhances equalization speed by 42.03%compared to the maximum value equalization method.The method also effectively improves energy utilization under the same charging and discharging states.展开更多
文摘This article presents a new kind of class of all after composed set and fore composed set using the arbitrary binary relation based on nano topological space. We express the notion of nano equality, and nano inclusion and nano power set regarding binary relation based on nano topology. Also, we discuss their properties. Finally, the real life application of network topology is studied.
基金supported by the Natural Science Foundation of Hebei Province(Grant No.F2023502011 and E2023502026)the Chongqing Natural Science Foundation(Grant No.CSTB2023NSCQMSX0359).
文摘The equalization management system is an essential guarantee for the safe,stable,and efficient operation of the power battery pack,mainly composed of the topology of the equalization circuit and the corresponding control strategy.This article proposes a novel active balancing control strategy to address the issue of individual cell energy imbalance in battery packs.Firstly,to achieve energy equalization under complex conditions,a two-layer equalization circuit topology is designed,and the efficiency and loss of energy transfer in the equalization process are studied.Furthermore,a directed graph-based approach was proposed to represent the circuit topology equivalently as a multi-weighted network.Combined with a multi-weighted optimal matching algorithm,aims to determine the optimal energy transfer path and reduce equalization losses.In addition,a fuzzy controller that can dynamically adjust the equalization current with the state parameter of the cell as the input condition is designed to optimize the equalization efficiency.Matlab/Simulink software is used to build and simulate the model.The experimental results indicate that,under the same static state,the newly proposed control strategy improves efficiency by 6.08%and enhances equalization speed by 42.03%compared to the maximum value equalization method.The method also effectively improves energy utilization under the same charging and discharging states.
