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学者姓名:陈为
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Common mode chokes (CMCs) are key components in electromagnetic interference (EMI) filters, and accurate modeling of these components is critical for filter design and EMI noise simulation. This article proposes a behavioral model and parameter extraction technique for characterizing three-phase four-wire common mode chokes (4W-CMCs). The proposed model considers the inductance nonlinearity caused by the nonlinear permeability of manganese-zinc ferrite and nanocrystalline magnetic materials, as well as the asymmetry and local symmetry in the winding distribution of 4W-CMCs. The parameters for the common mode and differential mode (DM) models are extracted using a parameter extraction program and a simple equation-based method, respectively. For the DM model parameter extraction, this article proposes a measurement method that utilizes the local symmetry of 4W-CMCs. The equivalent circuit of this measurement method decouples the interwinding capacitance (C-W) from the DM inductance parallel capacitance (C-D) by transforming two-port network parameters, greatly simplifying the parameter extraction process. The accuracy of the model and the effectiveness of the method are validated through experiments using several 4W-CMCs with manganese-zinc ferrite and nanocrystalline magnetic cores.
Keyword :
Analytical models Analytical models Common mode chokes (CMCs) Common mode chokes (CMCs) electromagnetic interference electromagnetic interference Electromagnetic interference Electromagnetic interference filters filters Filters Filters Inductors Inductors Magnetic cores Magnetic cores model analysis model analysis Noise Noise Parameter extraction Parameter extraction parasitic parameter extraction parasitic parameter extraction Permeability Permeability Testing Testing Windings Windings
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GB/T 7714 | Lan, Yujie , Chen, Wei , He, Qing et al. Analysis and High-Frequency Model of Three-Phase Four-Wire Common Mode Chokes [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (3) : 4156-4169 . |
MLA | Lan, Yujie et al. "Analysis and High-Frequency Model of Three-Phase Four-Wire Common Mode Chokes" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 3 (2025) : 4156-4169 . |
APA | Lan, Yujie , Chen, Wei , He, Qing , Chen, Qingbin . Analysis and High-Frequency Model of Three-Phase Four-Wire Common Mode Chokes . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (3) , 4156-4169 . |
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The effective capacitance of the common mode port serves as a critical metric for assessing the common mode noise suppression capability of transformers in power converters. Conventionally, the evaluation of transformers in single-ended topologies, such as flyback converters, using a network analyzer necessitates a reference static point and a dynamic point at the transformer port. However, a full-bridge transformer without a center tap lacks a reference static point in both the primary and secondary stages. Consequently, this paper proposes an innovative measurement technique to evaluate the common mode noise suppression capability of full-bridge transformers. This method accounts for the intrinsic parameters of the transformer and refines the high-frequency equivalent circuit model for accurate measurement. Ultimately, the validity of the proposed model is confirmed through experiments conducted on a CLLC converter prototype, offering the industry a straightforward and efficient approach to assessing and testing the common mode noise suppression performance of transformers without a center tap.
Keyword :
common mode port effective capacitance common mode port effective capacitance high-frequency model high-frequency model transformer transformer
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GB/T 7714 | Kong, Yipeng , Chen, Wei . Evaluation Method and Modeling Analysis of the Common Mode Noise Suppression Capability of Full-Bridge Transformers [J]. | ELECTRONICS , 2025 , 14 (2) . |
MLA | Kong, Yipeng et al. "Evaluation Method and Modeling Analysis of the Common Mode Noise Suppression Capability of Full-Bridge Transformers" . | ELECTRONICS 14 . 2 (2025) . |
APA | Kong, Yipeng , Chen, Wei . Evaluation Method and Modeling Analysis of the Common Mode Noise Suppression Capability of Full-Bridge Transformers . | ELECTRONICS , 2025 , 14 (2) . |
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在电磁干扰(EMI)滤波器的设计和功率变换器的EMI噪声预测中,共模扼流圈的精确建模至关重要.然而,在高频下受共模扼流圈寄生参数的影响,现有模型难以准确表征其滤波特性.该文分析现有模型的缺点在于无法完整反映共模扼流圈的内部电场特性,因此根据共模扼流圈差模分量在高频下的插入损耗谐振点特性提出一种新的高频模型,该模型通过综合考虑端部和绕组中间寄生电容的影响从而完整表征差模分量的电场特性,并解析新模型电路结构给出模型中寄生参数的提取流程.实验结果表明,新模型在 150 kHz~30 MHz下具有良好的拟合精度,证明了该模型的准确性.
Keyword :
共模电感 共模电感 寄生参数提取 寄生参数提取 建模 建模 滤波器 滤波器 电磁干扰 电磁干扰
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GB/T 7714 | 兰宇杰 , 曾晓辉 , 陈为 et al. 电磁干扰滤波器中共模扼流圈的高频模型 [J]. | 电工技术学报 , 2025 , 40 (6) : 1805-1815 . |
MLA | 兰宇杰 et al. "电磁干扰滤波器中共模扼流圈的高频模型" . | 电工技术学报 40 . 6 (2025) : 1805-1815 . |
APA | 兰宇杰 , 曾晓辉 , 陈为 , 陈庆彬 . 电磁干扰滤波器中共模扼流圈的高频模型 . | 电工技术学报 , 2025 , 40 (6) , 1805-1815 . |
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针对磁性材料直流磁化特性难以宽范围精确测量的问题,本文提出直流励磁法测量磁性材料的本征直流磁化曲线,详细分析其测量原理并搭建自动化测量平台.通过上下位机通信合理控制开关管的通断时间,利用高精度采样仪器采样感应电压和励磁电流后进行数据处理.基于测量平台分析其误差来源并加以解决,实现宽范围的磁性材料直流磁化曲线的测量.利用磁导率是真空磁导率的空心电感为被测件,验证直流励磁法的测量精度.最后,利用提出的直流励磁法测量铁氧体和金属磁粉心的直流磁化曲线,将其与大信号交流法测量结果进行比较分析.
Keyword :
测量 测量 直流励磁 直流励磁 直流磁化特性 直流磁化特性 软磁材料 软磁材料
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GB/T 7714 | 汪晶慧 , 范鹏 , 陈为 . 基于直流励磁的磁性元件直流磁化特性测量与分析 [J]. | 电工电能新技术 , 2025 , 44 (3) : 99-108 . |
MLA | 汪晶慧 et al. "基于直流励磁的磁性元件直流磁化特性测量与分析" . | 电工电能新技术 44 . 3 (2025) : 99-108 . |
APA | 汪晶慧 , 范鹏 , 陈为 . 基于直流励磁的磁性元件直流磁化特性测量与分析 . | 电工电能新技术 , 2025 , 44 (3) , 99-108 . |
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Capacitive power transfer (CPT) technique uses coupled metal plates for energy transmission, which has the advantages of negligible eddy-current loss and low weight. To achieve efficient power transfer, the CPT system often adopts circuit resonance and impedance compensation, which are generally realized by integer-order components, such as inductors and capacitors. However, it remains a fundamental challenge to create a CPT system whose transfer efficiency and output power are robust against the variation of resonant frequency and the coupled plates' relative position. Therefore, this article proposes a robust fractional-order autonomous CPT system containing a fractional-order inductor. Theoretical analysis shows that the transfer efficiency and output power of the proposed fractional-order CPT system are inherently robust not only to the variation of the coupled plates' relative position but also to the resonant frequency. In contrast, the transfer efficiency and output power of traditional integer-order CPT systems are sensitive to the resonant frequency. The available experimental results verify the effectiveness of the proposed system.
Keyword :
Autonomous Autonomous capacitive power transfer (CPT) capacitive power transfer (CPT) Capacitors Capacitors Couplings Couplings fractional order fractional order Inductors Inductors Receivers Receivers Resonant frequency Resonant frequency RLC circuits RLC circuits robust transmission robust transmission Transmitters Transmitters
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GB/T 7714 | Jiang, Yanwei , Zhou, Yang , Zhang, Bo et al. A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit [J]. | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2024 , 12 (3) : 3258-3267 . |
MLA | Jiang, Yanwei et al. "A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit" . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS 12 . 3 (2024) : 3258-3267 . |
APA | Jiang, Yanwei , Zhou, Yang , Zhang, Bo , Chen, Wei , Chen, Qingbin , Shu, Xujian . A Robust Capacitive Power Transfer System via Fractional-Order Autonomous Circuit . | IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS , 2024 , 12 (3) , 3258-3267 . |
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针对高低频复合励磁磁元件磁心损耗难以精确测量和建模的问题,在详细分析现有磁心损耗测量方法和磁心损耗模型局限性的基础上,根据直流功率法测量原理搭建高低频复合励磁磁心损耗测量系统,利用损耗能精确测量的空心电感验证其测量精度.最后,基于直流偏置下脉宽调制(pulse width modulation,PWM)波励磁的磁心损耗模型,提出高低频复合励磁磁性元件的磁心损耗预测模型,并实验验证预测模型最大相对误差为-8.83%,具有较高的精度.
Keyword :
模型 模型 直流功率法 直流功率法 磁心损耗 磁心损耗 磁滞回线 磁滞回线 高低频复合励磁 高低频复合励磁
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GB/T 7714 | 汪晶慧 , 卢志诚 , 陈为 . 高低频复合励磁磁心损耗量化的研究 [J]. | 中国电机工程学报 , 2024 , 44 (10) : 4091-4102,中插29 . |
MLA | 汪晶慧 et al. "高低频复合励磁磁心损耗量化的研究" . | 中国电机工程学报 44 . 10 (2024) : 4091-4102,中插29 . |
APA | 汪晶慧 , 卢志诚 , 陈为 . 高低频复合励磁磁心损耗量化的研究 . | 中国电机工程学报 , 2024 , 44 (10) , 4091-4102,中插29 . |
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共模电感由绕组和磁芯组成,锰锌铁氧体可以作为共模电感的磁芯,其高频参数的频变特性使共模电感的阻抗特性在150 kHz~30 MHz内呈非线性.针对传统共模电感集总电路模型与实测阻抗特性存在较大偏差,难以准确预测共模电感在高频段阻抗特性的问题,分析磁芯材料参数与绕组绕制方式对共模电感高频阻抗特性的影响;从共模电感分布电容特性的角度阐述磁性材料参数与绕组结构对分布电容大小的作用机理;提出考虑磁芯相关频变参数的共模电感宽频段阻抗仿真建模方法,结合阻抗测试验证所提方法的有效性.
Keyword :
仿真建模 仿真建模 共模电感 共模电感 分布电容 分布电容 阻抗特性 阻抗特性
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GB/T 7714 | 连振珠 , 傅恺宁 , 陈为 . 考虑频变特性的共模电感宽频段阻抗建模方法 [J]. | 电源学报 , 2024 , 22 (5) : 28-36 . |
MLA | 连振珠 et al. "考虑频变特性的共模电感宽频段阻抗建模方法" . | 电源学报 22 . 5 (2024) : 28-36 . |
APA | 连振珠 , 傅恺宁 , 陈为 . 考虑频变特性的共模电感宽频段阻抗建模方法 . | 电源学报 , 2024 , 22 (5) , 28-36 . |
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为了搭建适合工程批量应用的高频变压器共模抑制特性评估平台,分析变压器的共模噪声传导机理,研究变压器通道上共模噪声的传导特性,评估变压器对共模噪声的抑制能力.首先,通过函数发生器产生高频跳变电位信号,将其施加于变压器原边绕组以模拟变压器的共模噪声传输特性;其次,采用示波器捕捉共模信号在采样电阻上产生的电压降的值,判断变压器对共模噪声的抑制效果,分析评估平台中采样电阻的阻值选取对评估结果的影响;最后,对比评估结果与传导电磁干扰频谱的测试结果,验证所提变压器共模抑制特性评估方法的有效性.
Keyword :
共模 共模 容性耦合 容性耦合 电磁干扰 电磁干扰 高频变压器 高频变压器
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GB/T 7714 | 傅恺宁 , 涂江涛 , 陈为 . 高频变压器传导共模干扰分析与评估 [J]. | 电源学报 , 2024 , 22 (5) : 37-43 . |
MLA | 傅恺宁 et al. "高频变压器传导共模干扰分析与评估" . | 电源学报 22 . 5 (2024) : 37-43 . |
APA | 傅恺宁 , 涂江涛 , 陈为 . 高频变压器传导共模干扰分析与评估 . | 电源学报 , 2024 , 22 (5) , 37-43 . |
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Aiming at the problem that it is difficult to accurately measure and model the core losses of high and low frequency composite excitation, based on the detailed analysis of the limitations of the existing core losses measurement methods and core losses models, a core losses measurement system of high and low frequency composite excitation is built based on DC power method in this paper. The measurement accuracy is verified with the air-core inductor whose loss can be accurately measured. Finally, the core losses model of high and low frequency composite excitation is proposed based on the core losses model of PWM wave excitation under DC bias, and the experimental results show that the maximum relative error is −8.83%, which has high accuracy. ©2024 Chin.Soc.for Elec.Eng.
Keyword :
Magnetic cores Magnetic cores
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GB/T 7714 | Wang, Jinghui , Lu, Zhicheng , Chen, Wei . Research on Quantization of Core Losses of High and Low frequency Composite Excitation [J]. | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (10) : 4091-4102 . |
MLA | Wang, Jinghui et al. "Research on Quantization of Core Losses of High and Low frequency Composite Excitation" . | Proceedings of the Chinese Society of Electrical Engineering 44 . 10 (2024) : 4091-4102 . |
APA | Wang, Jinghui , Lu, Zhicheng , Chen, Wei . Research on Quantization of Core Losses of High and Low frequency Composite Excitation . | Proceedings of the Chinese Society of Electrical Engineering , 2024 , 44 (10) , 4091-4102 . |
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In this paper, the magnetic density distribution of three-phase common-mode inductors under different magnetic bias is obtained by finite element simulation of electromagnetic field, and the segmental reluctance model of the vertical core is established. The dynamic permeability distribution of three-phase common-mode choke is obtained by combining the characteristic curve of the material, so as to calculate the dynamic inductance under different magnetic bias. The establishment of the model provides design guidance for the optimization design of the common mode choke, reducing the volume and improving the noise suppression ability. The simulation results agree well with the experimental results, which shows that the proposed calculation method for the dynamic inductance of the common mode choke is effective. © 2024 IEEE.
Keyword :
Common mode choke Common mode choke Dynamic inductance Dynamic inductance Magnetic bias Magnetic bias Magnetic field distribution Magnetic field distribution
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GB/T 7714 | Kong, Y. , Chen, W. . Simulation and Calculation of Three-Phase Common Mode Inductance Considering Biased Magnetic Effects [未知]. |
MLA | Kong, Y. et al. "Simulation and Calculation of Three-Phase Common Mode Inductance Considering Biased Magnetic Effects" [未知]. |
APA | Kong, Y. , Chen, W. . Simulation and Calculation of Three-Phase Common Mode Inductance Considering Biased Magnetic Effects [未知]. |
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