A Hybrid PEEC–SPICE Method for Time-Domain Simulation of Mixed Nonlinear Circuits and Electromagnetic Problems

Safavi, Sohrab; Ekman, Jonas

doi:10.1109/temc.2014.2300372

Cited by 14 publications

(8 citation statements)

References 24 publications

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“…Therefore, although the first row in (12) formally states discrete convolution as a multiplication by a (sparse) matrix H, the actual numerical evaluation applies (13) to compute the auxiliary state variables at all time steps, and then, uses the results to evaluate the output samples based on (14). These samples are finally assembled in the output vector b.…”

Section: B Inexact Newton-krylov Iterationsmentioning

confidence: 99%

“…The electrodynamic behavior of energy-selective shields must be analyzed in time domain due to the presence of nonlinear terminations. To this end, transient full-wave electromagnetic solvers can be adopted, such as time-domain integral equation [9], finite-difference time-domain method [10], timedomain finite-element method [11], and partial element equivalent circuit [12]. Nonetheless, nonlinear interactions are only lumped at the ports where discrete nonlinear devices are connected.…”

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confidence: 99%

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A Waveform Relaxation Solver for Transient Simulation of Large-Scale Nonlinearly Loaded Shielding Structures

Stefano

Wendt

Yang

et al. 2022

IEEE Trans. Electromagn. Compat.

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This article introduces an algorithm for transient simulation of electromagnetic structures loaded by lumped nonlinear devices. The reference application is energy-selective shielding, which adopts clipping devices uniformly spread along shield apertures to achieve a shielding effectiveness that increases with the power of the incident field, thereby blocking high-power interference while allowing low-power communication. Transient simulation of such structures poses a number of challenges, related to their large-scale and low-loss nature. In this work, we propose a waveform relaxation (WR) scheme based on decoupling the linear electromagnetic structure from its nonlinear terminations. In a preprocessing stage, the electromagnetic subsystem is characterized in the frequency domain and converted into a behavioral rational macromodel. Transient simulation is performed by refining estimates of the port signals through iterations. The proposed scheme combines a time partitioning approach with an inexact Newton-Krylov solver. This combination provides fast convergence also in those cases where standard WR schemes fail due to a strong mismatch at the decoupling sections. Numerical results on several test cases of increasing complexity with up to 1024 ports show that the proposed approach proves as reliable as HSPICE in terms of accuracy, with a speedup ranging from one to three orders of magnitude.

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Section: B Inexact Newton-krylov Iterationsmentioning

confidence: 99%

mentioning

confidence: 99%

A Waveform Relaxation Solver for Transient Simulation of Large-Scale Nonlinearly Loaded Shielding Structures

Stefano

Wendt

Yang

et al. 2022

IEEE Trans. Electromagn. Compat.

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show abstract

“…To obtain accurate simulated results, the same methodology developed in [24] and [25] for the parasitic wiring model of the test setup is considered using the partial element equivalent circuit method [26]. The complete circuit model, which takes into account the self and mutual inductances of the layout, shunt, probe, and cable models, is shown in Fig.…”

Section: Experimental Test Circuit Modelingmentioning

confidence: 99%

A Novel Approach to Accurately Determine the $t_{q}$ Parameter of Thyristors

Garrab

Jedidi

Morel

et al. 2017

IEEE Trans. Ind. Electron.

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The continued use of high-voltage thyristor devices in industry and their increased use in high-voltage dc transmission systems call for more attention to the properties of these devices. One of the important thyristor parameters is their turn-off time tq, which can be a limiting factor when applying thyristors at elevated switching frequencies. Hence, the accurate measurement of tq and its variation versus the operating conditions remains a crucial task for thyristor converters operating at elevated switching frequencies. In this paper, a proper test circuit for measuring this parameter with a high level of accuracy has been designed and built. Owing to the test circuit specificity, the variation effects of several electrical and physical constraints, such as the forward current, I F , the reverse applied voltage, VR, the operating temperature, T o , and the ramp rate of the forward reapplied voltage, dV D /dt, on the t q parameter of Thyristors are also studied and analyzed based on the physics of semiconductor devices and associated simulations.

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“…However, other parasitic extraction tools like Q3D [21] may also be used. INCA software is based on the Partial Element Equivalent Circuit (PEEC) method [22] to model printed circuit boards. This is a useful concept in Power Electronics that enables researchers to assign an equivalent electrical circuit to each portion of a conductor.…”

Section: B Modeling the Circuit Wiring Behavior With Mutual And Selfmentioning

confidence: 99%

The Role of a Wiring Model in Switching Cell Transients: the PiN Diode Turn-off Case

Jedidi

Garrab

Morel

et al. 2017

Journal of Power Electronics

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Power converter design requires simulation accuracy. In addition to the requirement of accurate models of power semiconductor devices, this paper highlights the role of considering a very good description of the converter circuit layout for an accurate simulation of its electrical behavior. This paper considers a simple experimental circuit including one switching cell where a MOSFET transistor controls the diode under test. The turn-off transients of the diode are captured, over which the circuit wiring has a major influence. This paper investigates the necessity for accurate modeling of the experimental test circuit wiring and the MOSFET transistor. It shows that a simple wiring inductance as the circuit wiring representation is insufficient. An adequate model and identification of the model parameters are then discussed. Results are validated through experimental and simulation results.

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A Hybrid PEEC–SPICE Method for Time-Domain Simulation of Mixed Nonlinear Circuits and Electromagnetic Problems

Cited by 14 publications

References 24 publications

A Waveform Relaxation Solver for Transient Simulation of Large-Scale Nonlinearly Loaded Shielding Structures

A Waveform Relaxation Solver for Transient Simulation of Large-Scale Nonlinearly Loaded Shielding Structures

A Novel Approach to Accurately Determine the $t_{q}$ Parameter of Thyristors

The Role of a Wiring Model in Switching Cell Transients: the PiN Diode Turn-off Case

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