端接复杂电路传输线网络的电磁耦合时域并行计算方法

叶志红; 张玉; 鲁唱唱

doi:10.11999/JEIT230098

端接复杂电路传输线网络的电磁耦合时域并行计算方法

doi: 10.11999/JEIT230098

叶志红^{1, 2, ,},
张玉¹,
鲁唱唱¹

1.
重庆邮电大学通信与信息工程学院重庆 400065
2.
电网环境保护全国重点实验室武汉 430074

基金项目: 2023年度电网环境保护全国重点实验室开放基金(GYW51202301435)

详细信息

作者简介:
叶志红：男，副教授，研究方向为电磁安全与智能电磁计算、计算电磁学

张玉：女，硕士生，研究方向为电磁兼容

鲁唱唱：女，硕士生，研究方向为电磁兼容

通讯作者:
叶志红　yezh@cqupt.edu.cn

中图分类号: TN711; TM15
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- 被引次数: 0
出版历程
- 收稿日期: 2023-02-23
- 修回日期: 2023-12-25
- 网络出版日期: 2023-12-25
- 刊出日期: 2024-02-10

Time Domain Parallel Calculation Method for the Coupling of Transmission Line Network Terminated with Complex Circuits

YE Zhihong^{1, 2
, ,},
ZHANG Yu¹,
LU Changchang¹

1.
School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
2.
State Key Laboratory of Power Grid Environmental Protection, Wuhan 430074, China

Funds: Open Fund of State Key Laboratory of Power Grid Environmental Protection (GYW51202301435)

摘要

摘要: 针对端接复杂电路传输线(TL)网络的电磁耦合问题，仍缺乏高效的场路协同仿真技术。该文将传输线方程与时域有限差分(FDTD)方法、诺顿定理和置换定理以及NGSPICE软件相结合，并引入消息传递接口(MPI)并行技术，提出一种高效的时域混合并行算法(FDTDTL-NGSPICE)。首先，根据诺顿定理和置换定理，将传输线网络分解为传输线子系统和复杂电路子系统，并构建对应的等效电路模型。然后，使用FDTDTL并行算法计算传输线子系统沿线各点的电压和电流，并获取对应诺顿等效电路的电流源和等效导纳大小。最后，使用NGSPICE对复杂电路子系统进行传导干扰分析，获得复杂电路各元件上的瞬态响应，并将端口电压反馈给传输线子系统作为边界，实现传输线网络电磁耦合的场线路联合协同仿真。通过对3类典型场景的计算实例，分别使用时域混合并行算法和电磁仿真软件CST电缆工作室(CS)进行数值模拟并对比，验证所提算法的置信度。
- 传输线网络 /
- 复杂电路 /
- 诺顿定理 /
- 时域有限差分与传输线方程的混合并行算法 /
- NGSPICE软件
Abstract: Efficient field-circuit synchronous simulation techniques used for the coupling analysis of Transmission Line (TL) network with complex circuits excited by ambient wave are still rare. In this work, the TL equations are combined with the Norton’s theorem, the Substitution theorem Finite-Difference Time-Domain (FDTD) method, NGSPICE software and parallel technique based on Message Passing Interface (MPI) to form an efficient parallel time domain hybrid method (FDTD-Transmission Line equation-NGSPICE, FDTDTL-NGSPICE). Firstly, the overall structure of transmission line network is decomposed into the transmission line subsystem and complex circuit subsystems according to the Norton’s theorem and Substitution theorem, and the corresponding equivalent circuit models are constructed. Then the parallel FDTDTL method is employed to solve the voltage and current responses along the transmission line subsystem, which are utilized to extract the current sources and equivalent admittance of the Norton’s equivalent circuits. Finally, the NGSPICE software is applied for the conducted interference analysis of the complex circuit subsystems to obtain the transient responses on the ports and all elements of the complex circuits, and then the port voltages are fed back to the transmission line subsystem as boundary conditions. The significant feature of this time domain hybrid method is that it realizes the field-line-circuit synchronous simulation of transmission line network. And the confidence of this method is verified by the comparison of three typical scenario examples simulated by this method and the electromagnetic software CST Cable Studio (CS).
- Transmission Line (TL) network /
- Complex circuit /
- Norton’s theorem /
- Parallel Finite-Difference Time-Domain-Transmission Line equation (FDTDTL) method /
- NGSPICE software

HTML全文

图 1 端接复杂电路传输线网络的场路混合模型

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图 2 时域混合并行算法的实现流程

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图 3 FDTDTL并行算法不同线程之间的数据通信

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图 4 复杂电路端口电压的前向和后向差分格式

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图 5 端接复杂电路传输线网络的等效电路模型

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图 6 终端电路子系统的传导干扰分析模型

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图 7 端接复杂线性电路传输线网络的电磁耦合模型

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图 8 算例1的传输线网络端接电路电压响应

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图 9 端接非线性电路传输线网络的电磁耦合模型

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图 10 算例2的传输线网络端接电路电压响应

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图 11 屏蔽腔内传输线网络的电磁耦合模型

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图 12 算例3的传输线网络端接电路电压响应

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表 1 复杂线性电路的元件参数表

元件 R_r1 R_r2 R_r3 R_r4 R_r5 R_r6 L₁ L₂ C₁

参数值 180 Ω 100 Ω 180 Ω 100 Ω 150 Ω 150 Ω 5 nH 1 nH 1 pF

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表 2 复杂非线性电路的元件参数表

元件 R_r1 R_r2 R_p1 R_p2 C_p C_r1 C_r2 L_r1 L_p

参数值 100 Ω 100 Ω 50 Ω 100 Ω 1 pF 1 pF 1 pF 1 nH 1 nH

下载: 导出CSV

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