Modular-Terminal-Behavioral (MTB) Model for Characterizing Switching Module Conducted EMI Generation in Converter Systems

Liu, Qian; Wang, Fei; Boroyevich, Dushan

doi:10.1109/tpel.2006.882903

Cited by 81 publications

(11 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This kind of model predicts EMI without looking into device details, which makes it suitable for complex circuits and system-level interference. The model generally consists of one or more pairs of Norton/Thevenin equivalent circuits for describing EMI behavior [1], [2], [3].…”

Section: Introductionmentioning

confidence: 99%

“…The modular terminal behavioral (MTB) model for characterizing switching module conducted emission was originally proposed in [1], and it has since been expanded into a generalized terminal model [2], [3]. However, the converter load is included and kept fixed in the terminal model, and the load effect on conducted emissions is unable to be addressed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Approach to Identify Noise-Source Parameters of DC–DC Converter and Predict Conducted Emissions With Different Loads

Zhang

Iokibe

Toyota

2023

IEEE Lett. on Electromagn. Compat. Pract. and Appl.

View full text Add to dashboard Cite

The black-box equivalent-circuit model is generally used to predict electromagnetic interference (EMI) from dc-dc converters for assisting with filter design. We previously proposed a Norton-based two-port equivalent-circuit model excluding load to investigate the load effect on EMI. The EMI prediction presupposes constant internal impedances independent of the load change with only the noise current source change dependent on the load change. Under these conditions, the noise current source at any load can be calculated by using the numerical interpolation method. In this work, we used a dc-dc buck converter with a switching frequency of 200 kHz and identified the model parameters precisely by applying the waveform decomposition method. The internal admittances were found to be almost constant with respect to load change and only the input-port current source decreased with load. We then applied the cubic spline interpolation method to fit the input-port current source and calculate it at any load. This approach was verified by predicting the input-port noise voltage for loads between 3.3 and 15.6 . Below 80 MHz, where the input-port current source decreased with load, the input-port voltage predicted using the input-port current source fitted by interpolation was in good agreement with the measured one.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Approach to Identify Noise-Source Parameters of DC–DC Converter and Predict Conducted Emissions With Different Loads

Zhang

Iokibe

Toyota

2023

IEEE Lett. on Electromagn. Compat. Pract. and Appl.

View full text Add to dashboard Cite

show abstract

“…some intimate knowledge of the device, such as material properties, structure, and operating mechanism [11]. It is already pretty cumbersome to be applied to a system of simple construction with only a few switches, e.g., 2-level pulsewidth modulation (PWM)-based H-bridge converter, since it would be difficult and prohibitively time-consuming to model all the devices' physical details in the system to achieve sufficient accuracy, let alone the MMCs, which could involve up to thousands of semiconductor devices.…”

Section: Introductionmentioning

confidence: 99%

An Accurate and Fast Method for Conducted EMI Modeling and Simulation of MMC-Based HVdc Converter Station

Zhu

Lin

Dinavahi

et al. 2020

IEEE Trans. Power Electron.

View full text Add to dashboard Cite

The analysis of electromagnetic interference (EMI) noise of power electronic circuits involves both the transient characteristics of power semiconductor devices and the wideband stray parameters of passive equipment. Modular multilevel converters (MMCs) used in high-voltage direct current (HVdc) transmission systems contain thousands of submodules (SMs), which makes it considerably challenging to perform device-level simulation on the traditional commercial software. This article presents an accurate and fast method for wideband modeling and simulation of MMC-HVdc system for the assessment of conducted EMI during the design stage. Physical characteristics of the semiconductor devices, parasitic parameters of the insulated-gate bipolar transistor (IGBT) packages, and stray capacitances of the SMs are all taken into consideration, and massively parallel transient simulation of the wideband MMC model is carried out on the graphics processor (GPU). The accuracy and efficiency of the GPU-based parallel algorithm are validated by the comparison with the experimental measurement of an 11-level full-bridge MMC prototype. Furthermore, the stray capacitance network of the valve tower in HVdc project is extracted, and a matrix partition method based on the shielding plate configuration is utilized to conduct the computation in a fully parallelized manner. The developed GPU program is used to run the large-scale case of a 201-level two-terminal MMC-HVdc system, and the primarily affected frequency range by various factors is analyzed. Execution time test is conducted for different level topology, and it is demonstrated that the GPU can achieve a remarkable speedup over multicore CPUs, especially when the system scale is more substantial.

show abstract

“…When the former models are applied, the semiconductor devices' switching waveforms are represented by trapezoidal, sinusoidal or piecewise linearized approximations, which are undoubtedly compromises between accuracy and computational efficiency. Then, a forward improvement has been made and the measurement-based methods are proposed to characterize a given prototype with the equivalent source via a specific test procedure [23], [24] under a certain operating condition. Nevertheless, the dependency on measurement makes it unachievable for EMI verification before the system is constructed.…”

Section: Introductionmentioning

confidence: 99%

Wideband Modeling of Power SiC mosfet Module and Conducted EMI Prediction of MVDC Railway Electrification System

Zhu

Liang

Dinavahi

et al. 2020

IEEE Trans. Electromagn. Compat.

View full text Add to dashboard Cite

The SiC MOSFET in the medium-voltage directcurrent (MVdc) transportation electrification system features faster switching performance, while simultaneously binging more significant electromagnetic interference (EMI) issues within the rolling stocks, substations, and radiated disturbance into space along the catenaries and tracks. Due to the necessity to involve both the transient characteristics of power semiconductor devices and the stray parameters of all the equipment in the analysis of EMI, it is considerably challenging to perform wideband device-level simulation on traditional commercial software for such a complex system with numerous trains and stations. A computationally efficient method for wideband modeling and simulation of the MVdc highspeed railway system for the assessment of conducted EMI during the project design stage is proposed in this article. Physical characteristics of the semiconductor devices, parasitic parameters of the MOSFET package, and converter topology are all taken into consideration to provide not only accurate system-level performance of the system but also an insight into high-frequency characteristics under different operation conditions. The calculation burden is alleviated by a hierarchical circuit partitioning architecture based on the frequency-dependent time-domain transmission line model and the Norton equivalent parameter extraction of each MOSFET module to split the whole system into several smaller subcircuits in terms of matrix size, and a fully parallel implementation of the MVdc system is carried out on the graphics processor. The developed program is used to study the case of Jing-Zhang high-speed railway system topology, which is compatible to be modified to the MVdc project. Simulation results show that it is essential to estimate the EMI level comprehensively considering the alternative of speed and dc voltage.

show abstract

Modular-Terminal-Behavioral (MTB) Model for Characterizing Switching Module Conducted EMI Generation in Converter Systems

Cited by 81 publications

References 26 publications

An Approach to Identify Noise-Source Parameters of DC–DC Converter and Predict Conducted Emissions With Different Loads

An Approach to Identify Noise-Source Parameters of DC–DC Converter and Predict Conducted Emissions With Different Loads

An Accurate and Fast Method for Conducted EMI Modeling and Simulation of MMC-Based HVdc Converter Station

Wideband Modeling of Power SiC mosfet Module and Conducted EMI Prediction of MVDC Railway Electrification System

Contact Info

Product

Resources

About