Query：
学者姓名：陈为
Refining：
Year
Type
Indexed by
Source
Complex
Co-
Language
Clean All
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 等. "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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
为了研究单管正激变换器传导共模EMI特性,降低单管正激变换器的共模噪声,对单管正激变换器的传导共模噪声传输机理进行分析.基于分析建立共模噪声路径模型,提出 1 种计算方法明确外接电容大小来改善共模噪声;同时针对传统计算二次侧感应电荷量模型存在的缺陷,提出改进计算模型,通过仿真验证表明理想条件下改进模型准确性较高;然后使用平衡绕组的方法降低流经变压器的共模噪声,并通过 1 台单管正激电源样机进行实验验证,结果表明了计算外接电容方法的有效性,及在绕组距离较近且绕组较密情况下,改进计算模型计算的电荷量准确性较高.
Keyword ：
传导共模EMI特性 传导共模EMI特性 共模噪声抵消 共模噪声抵消 正激变换器 正激变换器 电磁干扰 电磁干扰
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 彭长川 , 陈为 , 林苏斌 . 单管正激变换器传导共模EMI特性分析 [J]. | 电源学报 , 2025 , 23 (2) : 298-306 . |
| MLA | 彭长川 等. "单管正激变换器传导共模EMI特性分析" . | 电源学报 23 . 2 (2025) : 298-306 . |
| APA | 彭长川 , 陈为 , 林苏斌 . 单管正激变换器传导共模EMI特性分析 . | 电源学报 , 2025 , 23 (2) , 298-306 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
应用多相交错并联耦合电感技术,可以有效降低相电流纹波、提升动态响应速度.针对不同设计目标,首先分析直接耦合电感和间接耦合电感的稳态性能和动态性能的影响因素;然后根据耦合前后等效动态电感不变设计提升稳态性能的直接耦合电感和间接耦合电感,根据耦合前后等效稳态电感不变设计提升动态性能的直接耦合电感和间接耦合电感;最后通过实验验证了理论分析的正确性和有效性.实验表明,2种不同耦合方式的耦合电感分别对提高变换器的稳态性能和动态性能有明显的效果.
Keyword ：
动态性能 动态性能 稳态性能 稳态性能 等效动态电感 等效动态电感 等效稳态电感 等效稳态电感 耦合电感 耦合电感 间接耦合 间接耦合
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 谢昌桦 , 张丽萍 , 陈为 et al. 多相交错并联耦合电感的分析与设计 [J]. | 电源学报 , 2025 , 23 (2) : 31-39 . |
| MLA | 谢昌桦 et al. "多相交错并联耦合电感的分析与设计" . | 电源学报 23 . 2 (2025) : 31-39 . |
| APA | 谢昌桦 , 张丽萍 , 陈为 , 肖长青 . 多相交错并联耦合电感的分析与设计 . | 电源学报 , 2025 , 23 (2) , 31-39 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Based on the finite-element analysis software Ansys Maxwell, this article proposed a simulation method for the core losses of pulsewidth modulation wave voltage excitation with dc bias which solves the problem of core losses calculation of magnetic components with different core structures in power converters. This article points out that the two key factors for core losses simulation are the magnetic properties of magnetic material and the magnetic flux density distribution inside the core. The measurement and modeling of different magnetization curves and core losses are analyzed, which are essential conditions for accurate core losses simulation. Meanwhile, a decoupling and calculation strategy for dc magnetic flux density and ac magnetic flux density peak value within the core are proposed to ensure effective implementation of core losses simulation, and the core losses can be obtained with field calculator based on an accurate core losses model. Furthermore, the article also provides a detailed analysis of the main simulation errors sources and proposes corresponding solutions. Finally, the core losses of ferrite magnetic ring and EE shaped magnetic core are analyzed and calculated using the proposed simulation method, and calculated results are compared with measurement results to verify accuracy.
Keyword ：
Accuracy Accuracy Core losses Core losses dc bias excitation dc bias excitation finite-element analysis (FEA) finite-element analysis (FEA) intrinsic magnetic properties intrinsic magnetic properties Loss measurement Loss measurement Magnetic cores Magnetic cores Magnetic flux density Magnetic flux density Magnetic hysteresis Magnetic hysteresis Magnetic separation Magnetic separation Mathematical models Mathematical models Power measurement Power measurement Voltage measurement Voltage measurement
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jinghui , Yao, Haowei , Xiao, Juntao et al. Research on Core Losses Quantification Method of DC Bias Excitation Based on Finite Element Analysis [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (6) : 8405-8415 . |
| MLA | Wang, Jinghui et al. "Research on Core Losses Quantification Method of DC Bias Excitation Based on Finite Element Analysis" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 40 . 6 (2025) : 8405-8415 . |
| APA | Wang, Jinghui , Yao, Haowei , Xiao, Juntao , Li, Xu , Chen, Wei . Research on Core Losses Quantification Method of DC Bias Excitation Based on Finite Element Analysis . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2025 , 40 (6) , 8405-8415 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Isolated power converters are widely used for its safety and flexible adjustment between input and output voltage range. EMI occurs due to the presence of switching process. The existence of parasitic parameters in transformers causes the work of EMI prediction in isolated DC-DC power converters more complicated. Parasitic parameters in transformer are the crucial propagation paths for CM noise conduction. For improving the accuracy of EMI prediction, this paper developed a wide-band frequency transformer model based on the two-capacitance model, further considering both the effect capacitive and inductive coupling on conductive common mode noise. Furthermore, the influence of permeability versus frequency of Mn-Zn ferrite on CM transmission, is investigated in detail. Two-port measurement is used for the validation of the proposed high frequency model. The experiment results demonstrate that the proposed wind-band frequency transformer model can well predict the CM noise behavior in the frequency range of 100 kHz to 100 MHz. © 2025 China Power Supply Society. All rights reserved.
Keyword ：
Binary alloys Binary alloys Capacitance Capacitance DC-DC converters DC-DC converters Electromagnetic coupling Electromagnetic coupling Electromagnetic induction Electromagnetic induction Electromagnetic pulse Electromagnetic pulse Electromagnetic wave interference Electromagnetic wave interference High frequency transformers High frequency transformers Manganese alloys Manganese alloys Signal interference Signal interference Ternary alloys Ternary alloys
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Fu, Kaining , Tu, Jiangtao , Chen, Wei et al. Developed Wide-Band Frequency Transformer Model for Conducted Common Mode Characteristics Prediction [J]. | CPSS Transactions on Power Electronics and Applications , 2025 , 10 (1) : 110-119 . |
| MLA | Fu, Kaining et al. "Developed Wide-Band Frequency Transformer Model for Conducted Common Mode Characteristics Prediction" . | CPSS Transactions on Power Electronics and Applications 10 . 1 (2025) : 110-119 . |
| APA | Fu, Kaining , Tu, Jiangtao , Chen, Wei , Huang, Linsen . Developed Wide-Band Frequency Transformer Model for Conducted Common Mode Characteristics Prediction . | CPSS Transactions on Power Electronics and Applications , 2025 , 10 (1) , 110-119 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The core losses quantification of magnetic components with geometrically diverse cores for power converters remains a challenge and an area of active research. By using finite element analysis software Ansys Maxwell, a simulation method for core losses calculation under PWM voltage excitation is proposed based on the modified Steinmetz equation (MSE) in this paper. The magnetic properties measurement and model of core material are specified, which are basis of core losses simulation. Furthermore, the work conducts a comprehensive error analysis to identify primary sources of simulation inaccuracies, accompanied by targeted mitigation strategies. To validate the methodology, core losses of a ferrite EE shaped core are simulated and subsequently compared with experimental measurements acquired through the DC power method. The close agreement between simulated and empirical results demonstrates the efficacy of the proposed methodology. © 2025 China Power Supply Society. All rights reserved.
Keyword ：
Computer software Computer software Coremaking Coremaking Magnetic cores Magnetic cores Magnetic devices Magnetic devices Maxwell equations Maxwell equations Pulse width modulation Pulse width modulation
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Fu, Zhikang , Wang, Jinghui , Xiao, Juntao et al. Simulation and Analysis of Core Losses Under High-Frequency PWM Wave Voltage Excitations [J]. | CPSS Transactions on Power Electronics and Applications , 2025 , 10 (2) : 210-219 . |
| MLA | Fu, Zhikang et al. "Simulation and Analysis of Core Losses Under High-Frequency PWM Wave Voltage Excitations" . | CPSS Transactions on Power Electronics and Applications 10 . 2 (2025) : 210-219 . |
| APA | Fu, Zhikang , Wang, Jinghui , Xiao, Juntao , Chen, Wei . Simulation and Analysis of Core Losses Under High-Frequency PWM Wave Voltage Excitations . | CPSS Transactions on Power Electronics and Applications , 2025 , 10 (2) , 210-219 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The key to the intelligent development of low-voltage plastic shell circuit breakers is to achieve real-time and accurate detection of the internal current. PCB Rogowski coil has the characteristics of high measurement accuracy, wide measurement frequency band, small size, and low cost. Moreover, PCB Rogowski coil does not directly contact with the measured primary current in the process of current detection, which is a very safe method. However, the internal space of low-voltage plastic shell circuit breaker is compact and complex. PCB Rogowki coil placed in the circuit breaker inevitably is interfered by various factors and it is difficult to achieve the theoretical high precision. This article makes use of mathematical analysis to identify the main factors that affect the performance of PCB Rogowski coils, including the influence of temperature on the skeleton, the eccentricity accuracy of the measured primary current, and the crosstalk accuracy of adjacent phase currents. Measures are proposed to reduce or even eliminate these effects. Through the analysis of these main factors, a three-phase uniform and densely winding PCB Rogowski coil with equal area return turns is proposed in this article. Finally, the experiment verifies that the eccentricity error does not exceed 0.2% and the crosstalk error does not exceed 0.3%. The PCB Rogowksi coil proposed in this article has a good linearity and has a current measurement accuracy of 0.5%.
Keyword ：
Accuracy Accuracy Circuit breakers Circuit breakers Coils Coils Crosstalk Crosstalk Current measurement Current measurement current measurement accuracy current measurement accuracy eccentricity accuracy eccentricity accuracy Low voltage Low voltage PCB Rogowski coil PCB Rogowski coil Printed circuits Printed circuits Sensors Sensors Skeleton Skeleton Temperature measurement Temperature measurement Windings Windings
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jianhao , Li, Shihui , Yu, Xujiang et al. Analysis of Influencing Factors on Current Measurement Accuracy of PCB Rogowski Coil [J]. | IEEE SENSORS JOURNAL , 2025 , 25 (6) : 9531-9539 . |
| MLA | Wang, Jianhao et al. "Analysis of Influencing Factors on Current Measurement Accuracy of PCB Rogowski Coil" . | IEEE SENSORS JOURNAL 25 . 6 (2025) : 9531-9539 . |
| APA | Wang, Jianhao , Li, Shihui , Yu, Xujiang , Zhou, Run , Zhu, Zhiting , Chen, Wei . Analysis of Influencing Factors on Current Measurement Accuracy of PCB Rogowski Coil . | IEEE SENSORS JOURNAL , 2025 , 25 (6) , 9531-9539 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
