Characterization of Si‐BCB transmission line at millimeter‐wave frequency by compact fractional‐order equivalent circuit model

2019 ◽  
Vol 29 (6) ◽  
pp. e21685
Author(s):  
Liyun Shi ◽  
Liangfeng Qiu ◽  
Xiaolong Huang ◽  
Feifei Zhang ◽  
Dangdang Wang ◽  
...  
Keyword(s):  
Transmission Line ◽  
Equivalent Circuit ◽  
Millimeter Wave ◽  
Fractional Order ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Wave Frequency

scholarly journals A Simplified Fractional Order Equivalent Circuit Model and Adaptive Online Parameter Identification Method for Lithium-Ion Batteries

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Jianlin Wang ◽  
Le Zhang ◽  
Dan Xu ◽  
Peng Zhang ◽  
Gairu Zhang
Keyword(s):  
Parameter Identification ◽  
Least Squares ◽  
Equivalent Circuit ◽  
Fractional Order ◽  
Equivalent Circuit Model ◽  
Lithium Ion ◽  
Circuit Model ◽  
Stability And Convergence ◽  
Battery Management System ◽  
Identification Method

In order to improve the battery management system performance and enhance the adaptability of the system, a fractional order equivalent circuit model of lithium-ion battery based on electrochemical test was established. The parameters of the fractional order equivalent circuit model are identified by the least squares parameter identification method. The least squares parameter identification method needs to rely on the harsh test conditions of the laboratory, and the parameter identification result is static; it cannot adapt to the characteristics of the lithium battery under dynamic conditions. Taking into account the dynamic changes of lithium batteries, a parameter adaptive online estimation algorithm for fractional equivalent circuit model is proposed. Based on the theory of fractional order calculus and indirect Lyapunov method, the stability and convergence of the estimator are analyzed. Finally, simulation experiments show that this method can continuously estimate the parameters of the fractional order equivalent circuit under UDDS conditions.

Analysis and Equivalent-Circuit Model for CMOS On-Chip Multiple Coupled Inductors in the Millimeter-Wave Region

2015 ◽  
Vol 62 (12) ◽  
pp. 3957-3964 ◽  
Author(s):  
Zongzhi Gao ◽  
Kai Kang ◽  
Zhengdong Jiang ◽  
Yunqiu Wu ◽  
Chenxi Zhao ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Millimeter Wave ◽  
Equivalent Circuit Model ◽  
Circuit Model ◽  
Coupled Inductors ◽  
Wave Region ◽  
On Chip
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