Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity
YE Zhihong① ZHOU Haijing② LIU Qiang②
①(School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China) ②(Institute of Applied Physics and Computational Mathematics, Beijing 100094, China)
Abstract：This paper presents a novel time domain hybrid method consisting of Finite Difference Time Domain (FDTD) method, Transmission Line (TL) equation, interpolation technique, and Newton iteration method for the coupling simulation of the arbitrary height cable terminated with TVS circuit in shield cavity rapidly. It can achieve a strong synergism computation of electromagnetic field and the responses of the cable and the circuit. The hybrid method uses FDTD method combined with the STL mesh generator technique to model the enclosure of the cavity rapidly and simulate the electromagnetic field distribution in the cavity accurately. The TL equation with interpolation technique is used to set up the coupling model of the cable in the cavity. Then the FDTD method is used to discrete the TL equation to obtain the transient voltage and current responses on the cable. The current-voltage equations are used for the analysis of the TVS circuit. Then the Newton iteration method is utilized to solve the current-voltage equations to obtain the voltage responses on the TVS. The correctness of the hybrid method is confirmed by comparing with the results obtained by electromagnetic simulation software. In testing, the hybrid method can be well applied to the limiting protection design of the loads in the terminal of the cable in shield cavity.
叶志红, 周海京, 刘强. 屏蔽腔内任意高度线缆端接TVS管电路的电磁耦合时域分析[J]. 电子与信息学报, 2018, 40(4): 1007-1011.
YE Zhihong, ZHOU Haijing, LIU Qiang. Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity. JEIT, 2018, 40(4): 1007-1011.
NODA T and KIKUMA T. A robust and efficient iterative scheme for the EMT simulations of nonlinear circuits[J]. IEEE Transactions on Power Delivery, 2011, 26(2): 1030-1038. doi: 10.1109/TPWRD.2010.2091288.
[2]
NIU B, SONG Z X, GENG Y S, et al. Electromagnetic topology analysis on relation between electromagnetic interference inside equipment and external electrostatic discharge[C]. Asia-Pacific Sympsoium on Electromagnetic Compatibility, Singapore, 2008: 815-818.
[3]
XIE Li and LEI Yinzhao. Transient response of a multiconductor transmission line with nonlinear terminations excited by an electric dipole[J]. IEEE Transactions on Electromagnetic Compatibility, 2009, 51(3): 805-810. doi: 10.1109/TEMC.2009.2023327.
[4]
YUAN Keliang, WANG Jianguo, XIE Haiyan, et al. SPICE model of a single twisted-wire pair illuminated by a plane wave in free space[J]. IEEE Transactions on Electromagnetic Compatibility, 2015, 57(30): 574-583. doi: 10.1109/TEMC. 2015.2392852.
[5]
XIE Haiyan, DU Taijiao, ZHANG Maoyu, et al. Theoretical and experimental study of effective coupling length for transmission lines illuminated by HEMP[J]. IEEE Transactions on Electromagnetic Compatibility, 2015, 57(6): 1529-1538. doi: 10.1109/TEMC.2015.2463814.
[6]
XIONG Run, CHEN Bin, MAO Yunfei, et al. A simple local approximation FDTD model of short apertures with a finite thickness[J]. Progress in Electromagnetics Research, 2012, 131: 135-152. doi: 10.2528/PIER12072201.
WANG Wei, QIN Yujian, LIU Peiguo, et al. The solution of transient response for complex transmission line network by hybrid higher order finite difference time domain-modified nodal analysis method[J]. Journal of Electronics & Information Technology, 2012, 34(12): 2999-3005. doi: 10.3724/SP.J.1146.2012.00160.
[8]
YE Zhihong, XIONG Xiangzheng, LIAO Cheng, et al. A hybrid method for electromagnetic coupling problems of transmission lines in cavity based on FDTD method and transmission line equation[J]. Progress in Electromagnetics Research M, 2015, 42: 85-93. doi: 10.2528/PIERM15032605.
[9]
YE Zhihong, XIONG Xiangzheng, ZHANG Min, et al. A novel time domain hybrid method for coupling problems of long cables excited by electromagnetic pulses[J]. IEEE Transactions on Electromagnetic Compatibility, 2016, 58(6): 1710-1716. doi: 10.1109/TEMC.2016.2587904.
