检索结果-内蒙古大学图书馆

Circuit Proposal of a Latching Current Limiter for Space Applications Based on a SiC N-MOSFET

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第5期10卷 5474-5485页

作者： Lopez, Abraham Miaja, Pablo Fernandez Arias, Manuel Fernandez, Arturo Univ Oviedo Elect Power Supply Syst Grp Gijon 33204 Spain European Space Agcy ESA Elect Power Management Sect NL-2201 AZ Noordwijk Netherlands

Latching current limiters (LCLs) provide individual overcurrent protection to payloads protecting the satellite power bus. Under an overload, they limit the maximum current for a certain time. After this time, if the failure persists, the LCL isolates it from the power bus. The keystone of the LCLs is the current-limiting transistor. In traditional LCL designs, P-MOSFETs are used as the main current-limiting device. However, in this work, a complete LCL based on N-MOSFETs is presented. This change involves a complete redesign of the control circuitry of the LCL architecture. The use of silicon carbide (SiC) is explored to assess the possibility of operating at higher voltages and potentially at higher temperatures. This article shows a complete LCL design based on a SiC N-MOSFET. The design is tested implementing a class 10 LCL (10 A as nominal current) for a bus voltage of 100 V, a limitation current of 12 A, and a limitation time (trip-OFF time) of 1.5 ms.

关键词： Transistors MOSFET circuits Silicon carbide Junctions Logic gates Limiting MOSFET Current protection latching current limiter (LCL) satellite silicon carbide (SiC) N-MOSFET wide bandgap (WBG) devices

来源：评论

学校读者我要写书评

暂无评论

Transformerless Grid Connected Control of Wind Turbine Based on H-MMC

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第2期10卷 2126-2137页

作者： Rong, Fei Xu, Shuang Pan, Lao Sun, Zongqing Hunan Univ Coll Elect & Informat Engn Changsha 410082 Peoples R China

A high-power wind turbine has low rotational speed and a relatively low terminal voltage level. Thus, the wind energy conversion system (WECS) is commonly connected to the grid by an isolated boost transformer, which increases costs and room greatly. In this article, the hexagonal modular multilevel converter (H-MMC) is applied so that the high-power wind turbine can be directly connected to the medium-voltage ac grid. It has the advantages of transformerless grid connection and low ripples of capacitor voltages. As the bridge arm voltage of H-MMC contains both the low-frequency component induced by a wind turbine and the power frequency component induced by the grid, the voltage ripples of submodules (SMs) are reduced. Due to the large differences in the voltage level between the wind turbine and the grid, the low-amplitude-modulation voltage of the wind turbine side is easily obliterated by the high-amplitude-modulation voltage of the grid side, which will cause distortion of the bridge arm current. Therefore, auxiliary SMs with variable reference voltage are adopted to improve the tracking accuracy. The MATLAB/Simulink simulation and the RT-LAB hardware-in-the-loop experimental results verify the feasibility of the proposed topology and the effectiveness of the control strategy.

关键词： Wind turbines Bridge circuits Voltage Capacitors Frequency modulation Transformers Multilevel converters Auxiliary submodules (SMs) hexagonal modular multilevel converter (H-MMC) medium voltage transformerless grid connection wind turbine

来源：评论

学校读者我要写书评

暂无评论

A Family of Coupled Dual-Winding Impedance-Source Inverters With Continuous Input Currents and No DC-Link Voltage Spikes

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第6期10卷 7904-7914页

作者： Ma, Jianwei Liu, Hongpeng Chen, Jikai Li, Yuhao Loh, Poh Chiang Northeast Elect Power Univ Sch Elect Engn Jilin 132012 Peoples R China State Grid Corp China Mkt Dept Beijing 100031 Peoples R China Delta Elect Enterprise Management Shanghai Co LTD Shanghai 200135 Peoples R China Chinese Univ Hong Kong Dept Elect Engn Hong Kong Peoples R China

Impedance-source inverters with coupled inductors can provide much higher voltage gains, but occasionally at the expense of discontinuous input currents and large voltage spikes at their dc-links. The former is caused by the absence of inductances at their inputs, while the latter is due to unintentional interruptions of leakage currents through their coupled inductors. These problems have now been solved here by a new family of dual-winding impedance-source inverters (DW-ISIs). Each DW-ISI can recycle the leakage energy from its two windings to a few clamping capacitors, which in turn help prevent the voltage spikes. This, together with the presence of an inductance for smoothing its input current, renders the family of DW-ISIs to be highly effective, while not compromising the voltage and current stresses when compared with other precedent inverters. In addition, to simplify the circuit analysis, a reactive component elimination method has been proposed in this article. Simulation and experimental results have confirmed the validity of the proposed topologies.

关键词： Absorbing circuits impedance-source inverters leakage inductances voltage spikes

来源：评论

学校读者我要写书评

暂无评论

Multi-Objective Parameter Optimization-Based Design of Six-Pole Radial Hybrid Magnetic Bearing

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第4期10卷 4526-4535页

作者： Zhang, Hao Zhu, Huangqiu Wu, Mengyao Jiangsu Univ Sch Elect & Informat Engn Zhenjiang 212013 Jiangsu Peoples R China

To reduce the couplings between the radial suspension forces and control currents caused by the asymmetry structure of the three-pole hybrid magnetic bearing (HMB) which is driven by an inverter, a six-pole radial HMB is proposed. To improve the bearing capacity and reduce the eddy current loss and volume of the six-pole radial HMB, an improved multi-objective particle swarm optimization (MOPSO) algorithm is proposed to optimize the parameters. At first, the structure and working principle of the six-pole radial HMB are introduced based on the equivalent magnetic circuit method. Then, the optimization objectives and optimization variables are determined and the number of multi-objective optimization parameters is reduced by sensitivity analysis. Next, the fitting function of the suspension force is obtained by the response surface method (RSM). Based on the theoretical analysis of the MOPSO, the linear decreasing inertia weight and the concept of hybridization are introduced to improve the diversity and convergence of the MOPSO to get Pareto optimal sets. Finally, simulation analysis and prototype experiment are carried out on the optimized six-pole radial HMB. The feasibility of the optimization method is verified by the results of simulation and experiment.

关键词： Optimization Magnetic levitation Force Magnetic circuits Stators Permanent magnets Rotors Multi-objective particle swarm optimization (MOPSO) algorithm parameter-optimization-based design Pareto front response surface model six-pole radial hybrid magnetic bearing (HMB)

来源：评论

学校读者我要写书评

暂无评论

Thomson-Coil Actuator System for Enhanced Active Resonant DC Circuit Breakers

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第1期10卷 800-810页

作者： Augustin, Tim Parekh, Mrunal Magnusson, Jesper Becerra, Marley Nee, Hans-Peter KTH Royal Inst Technol S-10044 Stockholm Sweden ABB Corp Res S-72226 Vasteras Sweden

Enhanced active resonant (EAR) dc circuit breakers (DCCBs) are a promising set of recently proposed DCCB concepts. As other DCCBs, EAR DCCBs still require a fast mechanical switch. The requirements on the actuator of the mechanical switch depend on the DCCB concept and the dc grid and are derived here for an EAR DCCB. Thomson-coil actuators (TCAs) can open and close mechanical switches sufficiently fast to satisfy the requirements. This work studies experimentally a TCA system with active damping for an off-the-shelf industrial vacuum interrupter used as mechanical switch in an EAR DCCB. The prototype is explained in detail, and extensive measurement results are presented, showing that active damping must be perfectly timed to be effective. A novel Thomson-coil (TC) driver is proposed and studied experimentally, which operates the TCA more efficiently by recycling energy during the actuation. Moreover, the novel TC driver reduces the capacitive storage by 50% and allows for faster recharging with lower charging current. Finally, the autoreclosing and proactive commutation operation of the TCA system and the interruption capability of the prototype EAR DCCB are demonstrated experimentally.

关键词： Ear Actuators Switches Damping RLC circuits Circuit faults Circuit breakers Active damping actuator dc circuit breaker (DCCB) dc grid Thomson-coil actuator (TCA) vacuum interrupter (VI)

来源：评论

学校读者我要写书评

暂无评论

A Zero-Voltage, Zero-Current Transition Boost Cascaded-by-Buck PFC Converter for Universal E-Transportation Charging Applications

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第3期10卷 3273-3283页

作者： Praneeth, A. V. J. S. Williamson, Sheldon S. Delphi Automot Syst Luxembourg L-4940 Luxembourg Luxembourg Ontario Tech Univ Smart Transportat Electrificat & Energy Res Grp Oshawa ON L1H 7K4 Canada

Two-switch converters (TSCs) are widely used and are more efficient at high-power levels with lower component stress than the single-switch topologies. These converters have flexible operations in both boost and buck modes and are applicable to on-board battery chargers in the power factor correction (PFC) converter stage. The intermediate output voltage at PFC can be greater or lesser than the peak of input voltage (variable dc-link voltage), resulting in higher switching losses across the boost switch. An auxiliary circuit proposed in this article comprises an active switch and a diode with a pair of resonant inductors and capacitors that are applied across the main switch to operate with loss-less switching. Though the conduction time of the proposed auxiliary circuit is small compared with the main converter operation but attains the main switch to turn-on with zero-voltage transition and turn-off with zero-current transition. In addition, the auxiliary switch involved in the converter operation is also subjected to SS. In addition, the proposed converter has no extra component stress and switching losses. With this, it can enhance the overall converter efficiency. The various operating modes involved in different time intervals are analyzed and presented in this article. Moreover, the design criteria of the auxiliary circuit and the main converter parameters are also discussed in this article. As a proof-of-concept, a hardware prototype of 1 kW is implemented with the proposed control structure, and the results are presented in this article. Maximum efficiency of 97.4% has been achieved from the implemented hardware prototype.

关键词： Switches Switching circuits Stress Topology Capacitors Voltage control RLC circuits AC-DC power converters power electronics soft-switching (SS) zero-current switching (ZCS) zero-voltage switching (ZVS)

来源：评论

学校读者我要写书评

暂无评论

A Novel Power and Signal Composite Modulation Strategy for CCC-Based SRG in Distributed Microgrid

引用

ieee journal on emerging and selected topics in circuits and systems 2021年第1期11卷 121-132页

作者： Hua, Yingchun Yu, Dongsheng Li, Kecheng Hu, Yihua Fernando, Tyrone China Univ Min & Technol Sch Elect & Power Engn Xuzhou 221116 Jiangsu Peoples R China Univ Western Australia Sch Elect Elect & Comp Engn Crawley WA 6009 Australia

Switched Reluctance Generator (SRG) possesses the advantages of simple structure, low cost, high reliability and high fault tolerance. For promoting the intelligence of SRG based distributed power network, reliable communication is the key to achieve system monitoring, remote control, fault protection, etc. Power and Signal Composite Modulation (PSCM) methods are newly proposed to realize power-line communication (PLC) for SRG-based distributed microgrid. Two signal modulation methods are implemented on the basis of Current Chopping Control (CCC) by modulating either chopping references or chopping threshold of phase currents, so as to obtain voltage ripples with different frequencies to carry signals. Fast Fourier Transform (FFT) method is adopted for demodulating the transmitted data on receiving side. The proposed PSCM strategies are experimentally tested for SRG system with phase failure in distributed microgrid.

关键词： Microgrids Inductance Reliability Rotors circuits and systems Wind power generation Optical fiber cables Switched Reluctance Generator (SRG) Power and Signal Composite Modulation (PSCM) Current Chopping Control (CCC) Fast Fourier Transform (FFT)

来源：评论

学校读者我要写书评

暂无评论

Detuned Design Methodology of Anti-Misalignment Capacitive Power Transfer Converter

引用

ieee journal of emerging and selected topics in Power Electronics 2025年

作者： Huang, Zhicong Wang, Yu Wang, Jingyu Li, Xiaolu Lucia South China University of Technology Shien-Ming Wu School of Intelligent Engineering Guangzhou510006 China Sun Yat-sen University School of Integrated Circuits China

Stable power transmission is a critical concern in capacitive power transfer (CPT) systems due to the inevitable misalignment between couplers leading to power fluctuations. Existing anti-misalignment techniques face challenges of complicated design processes, reliance on multiple compensation components, and the necessity for complex control systems. To ensure stable power transmission under misalignment conditions in a relatively simple manner, this paper proposes a detuned design approach for series-compensated CPT systems to limit output power variations caused by misalignment. The proposed method employs a simple compensation scheme and achieves effective anti-misalignment capability via parameter design. By avoiding the need for active control or complex compensation, it offers a lightweight and highly reliable solution. Additionally, the design process considers aspects such as soft switching conditions and voltage stress for better performance. An experimental platform was built to validate the proposed detuned design methodology, with anti-misalignment output power, zero-voltage soft-switching and suppressed voltage stress. © 2025 ieee. All rights reserved.

关键词： Inductive power transmission

来源：评论

学校读者我要写书评

暂无评论

Special Section on ieee ICECS 2020

IEEE OPEN JOURNAL OF CIRCUITS AND SYSTEMS

引用

ieee OPEN journal OF circuits AND systems 2021年 2卷 546-547页

作者： Galayko, Dimitri Agostini, Luciano Volcan Sorbonne Univ LIP6 F-75006 Paris France Univ Fed Pelotas Ctr Technol Dev CDTec BR-96010610 Pelotas RS Brazil

This special Section contains extended versions of papers presented at the ieee International Conference on Electronics, circuits and systems (ICECS) in November 2020. The ieee ICECS 2020 was the first edition to be held in fully virtual form. The authors of the focus papers presented at the conference were invited to submit extended versions of their works to this OJCAS Special Section and after a rigorous review process, four of these submissions were selected to be included in this Special Section. All submissions were evaluated by experts in each respective field, with at least three revisions. The selected works cover an ample spectrum of state-of-the-art research in the circuits and systems area, including Analog and Mixed circuits, Micro Electromechanical systems, Quantum Computers, and Video Coding. These four published works are authored by researchers from Brazil, France, Ireland, Italy, and Spain and represent the plurality of high-quality works annually presented at ieee ICECS. These four papers perfectly fit with the OJCAS scope and are of interest for many researchers in the CAS community. The first two papers are review papers on two cutting-edge technologies of information processing: quantum information and video signal processing. The two other papers address selected topics in the field of embedded sensors in MEMS technologies.

关键词： Special issues and sections Meetings Electronics circuits and systems

来源：评论

学校读者我要写书评

暂无评论

A High-Efficiency Isolated PFC AC-DC Topology With Reduced Number of Semiconductor Devices

引用

ieee journal OF emerging AND selected topics IN POWER ELECTRONICS 2022年第4期10卷 3631-3642页

作者： Aldosari, Obaid Garcia Rodriguez, Luciano Andres Oggier, German G. Carlos Balda, Juan Prince Sattam Bin Abdulaziz Univ Dept Elect Engn Wadi Addawaser 11991 Saudi Arabia Sandia Natl Labs Albuquerque NM 87111 USA Univ Nacl Rio Cuarto UNRC CONICET Inst Invest Tecnol Energet & Mat Avanzados IITEMA RA-5800 Rfo Cuarto Argentina Univ Arkansas Dept Elect Engn Fayetteville AR 72701 USA

A new three-level isolated ac-dc power factor correction (PFC) topology with a minimum number of semiconductor devices is the focus of this article. This topology provides a high input power factor (PF), soft-switching, and higher efficiency than existing isolated ac-dc converters. Furthermore, the proposed circuit has lower voltage rating requirements for the secondary side devices, which leads to a lower total cost and minimizes total converter losses. This article presents a theoretical analysis describing the complete characterization of this new topology, and experimental results on a 1-kW prototype showing high PF and efficiency throughout the operating range.

关键词： Topology Bridge circuits Steady-state Voltage control Switches Reactive power Proposals AC-DC converters conduction losses power factor correction (PFC) soft-switching solid-state transformer (SST)

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：