MCB or eFuse? – Which one is best for properly securing DC circuits By Abdul Ücüncü, Application Engineer, PULS-MAGAZINE ELECTRONICS WORLD SEPTEMBER 2025

 

Aprovação: Disjuntor modular (MCB) somente no lado CC, com IEC 60947-2 A maioria dos disjuntores foi desenvolvida para a proteção de circuitos CA. A ideia de que a mesma tecnologia também pode proteger circuitos CC é um equívoco. O principal motivo é que as propriedades de queima e extinção de arco dos sistemas CA e CC são diferentes. Um disjuntor CA pode não desarmar de forma confiável em um circuito CC. Portanto, se você deseja usar um disjuntor modular (MCB) no lado CC em sistemas industriais de baixa tensão, ele deve estar em conformidade com a norma IEC 60947-2. Esta norma se aplica a disjuntores modulares cujos contatos principais são destinados à conexão a circuitos com tensões nominais na faixa de baixa tensão de 1.000 VCA ou 1.500 VCC.

ORIGINAL SOURCE WEB: https://www.electronicsworld.co.uk/magazines/september-3/

Inductive Wireless Power Transfer Systems for Low-Voltage and High-Current Electric Mobility Applications: Review and Design Example Manh Tuan Tran, Sarath Thekkan, Hakan Polat, Dai Duong Tran, Mohamed El Baghdadi, Omar Hegazy Faculty of EngineeringElectrical Engineering and Power ElectronicsMOBI - Electromobility Research Centre

 

Inductive Wireless Power Transfer Systems for Low-Voltage and High-Current Electric Mobility Applications: Review and Design Example ManhTuanTran1,2 ,Sarath Thekkan 1 and OmarHegazy 

 Abstract: Along with the technology boom regarding electric vehicles such as lithium-ion batteries, electric motors, and plug-in charging systems, inductive power transfer (IPT) systems have gained more attention from academia and industry in recent years. This article presents a review of the stateof-the-art development of IPT systems, with a focus on low-voltage and high-current electric mobility applications. The fundamental theory, compensation topologies, magnetic coupling structures, power electronic architectures, and control methods are discussed and further considered in terms of several aspects, including efficiency, coil misalignments, and output regulation capability. A 3D finite element software (Ansys Maxwell) is used to validate the magnetic coupler performance. In addition, a 2.5 kW 400/48 V IPT system is proposed to address the challenges of low-voltage and high-current wireless charging systems. In this design, an asymmetrical double-sided LCC compensation topology and a passive current balancing method are proposed to provide excellent current sharing capability in the dual-receiver structures under both resonant component mismatch and misalignment conditions. Citation: Tran, M.T.; Thekkan, S.; Polat, H.; Tran, D.-D.; El Baghdadi, M.; Hegazy, O. Inductive Wireless Power Transfer Systems for Low-Voltage and High-Current Electric Mobility Applications.

FULL TEXT :https://researchportal.vub.be/files/107101910/106587107.pdf

Efficient and Bidirectional Cascaded Auxiliary Power Module Design for Electric Trucks Using Hybrid Si, SiC, and GaN Technologies Ramy Kotb1,2 , Sajib Chakraborty1,2, and Omar Hegazy1,2

Efficient and Bidirectional Cascaded Auxiliary Power Module Design for Electric Trucks Using Hybrid Si, SiC, and GaN Technologies Ramy Kotb, Sajib Chakraborty, Omar Hegazy MOBI - Electromobility Research CentreElectrical Engineering and Power Electronics 

 Abstract In battery electric vehicles (BEVs), ensuring reliable auxiliary power is crucial for supporting essential functions such as communications, cooling systems, cabin air conditioning and emergency braking. Traditionally, 12V batteries have been widely used for auxiliary systems, but there is now a shift towards 48V systems, driven by the need for improved vehicle efficiency and enhanced performance. This transition is significant, especially for future medium and heavy duty BEVs, which are expected to use multiple low-voltage (LV) batteries to optimize power distribution. As part of an EU H2020 project, it is required to develop a digital twin model of the auxiliary loads power supply for an electric Truck. Hence, this research focuses on providing a proof of concept validation for an isolated DC-DC converter, known as the auxiliary power module (APM) through a high-fidelity model. This paper presents the design and evaluation of a single-input, multi-output cascaded APM topology for electric trucks, emphasizing its efficiency and performance. The integration of advanced switching technologies, including Si and SiC MOSFETs and GaN HEMTs, is highlighted for their potential to enhance APM functionality. A high-fidelity co-simulation model has been developed using PLECS-Blockset and MATLAB Simulink, demonstrating the APM's ability to achieve a peak efficiency of 98% at 10 kW in bidirectional power control between the high voltage (HV) bus and two LV buses. 

 FULL TEXT :https://researchportal.vub.be/files/118150168/241126_SMART24_Ramy_PURE_Version.pdf

A Novel Solid-State Circuit Breaker for DC Microgrid System-Weilin Li, IEEE Member, Xuanlyu Wu, Yufeng Wang, Renyou Xie, Zhiyong Zhang, Heng Wang School of Automation, Department of Electrical Engineering The Key Laboratory of Aircraft Electric Propulsion Technology, Ministry of Industry and Information Technology of China

 A Novel Solid-State Circuit Breaker for DC Microgrid System-Weilin Li, IEEE Member, Xuanlyu Wu, Yufeng Wang, Renyou Xie, Zhiyong Zhang

Conference: 2018 IEEE International Conference on Electrical Systems for Aircraft, Railway, Ship Propulsion and Road Vehicles & International Transportation Electrification Conference (ESARS-ITEC) 

 Abstract—The development of the DC microgrid system has promoted the development of the DC circuit breaker. However, the traditional DC circuit breaker exists many problems such as long period of fault interruption, complex circuit structure, existing arc, low reliability and low anti-interference. Aiming to solve these problems, a novel solid-state DC circuit breaker was proposed in this paper. Firstly, this paper analyzes the working principle and process of the circuit in detail according to the results of the simulation based on Saber. Secondly, this paper gives the criteria on how to choose the parameters of the components correctly in the circuit. The concept of the maximum fault resistance according to the minimum fault current is also introduced. Moreover, this paper analyzes the influence of the minimum fault ramp rate on the circuit performance. Finally, experimental results verify that this novel solid-state circuit breaker is available.

FULL TEXT:

 https://www.researchgate.net/publication/330388450_A_Novel_Solid-State_Circuit_Breaker_for_DC_Microgrid_System

Research on Control Strategy of High-power Three-phase Combined Inverter-Submitted by ZHANG HUAYING-Department of Electrical Engineering Graduate School of Konkuk University

 

ABSTRACT 

Research on Control Strategy of High-power Three-phase Combined Inverter Zhang Hua Ying Department of Electrical engineering Graduate School of Konkuk University 

Thesis for Degree of Master

Supervisor: Prof. Younghoon Cho

Three-phase voltage-type inverters are used in various occasions, such as static reactive power compensator, uninterruptible power supply distribution network development system, motor control, etc. In today's world where energy is scarce, research on inverters and their control technology is of great significance and is gaining more and more attention. People have higher and higher requirements for inverter power supplies. High-performance, high-reliability high-power inverters are one of the development trends of inverter power supplies. In the high-power inverter power supply, the current on the main circuit power device is relatively large, which can reach hundreds of amps, or even thousands of amps. There are two main ways to increase the capacity of the inverter power supply. And parallel technology using inverters to achieve power modularity. This article takes 30kVA combined three-phase inverter as the research object, adopts PID control method, mainly studies the waveform control of high-power three-phase inverter, and focuses on the main circuit structure and system of high-power three-phase inverter. The mathematical model and waveform control were analyzed and studied in detail. The structure of the three-phase combined inverter suitable for high power is analyzed, the main circuit design of the combined threephase inverter with 30KVA is given, and the combined three-phase inverter established and analyzed under different coordinate systems The mathematical model of the model is simulated and studied according to the parameter settings.

FULL THESIS: 

ORIGINAL LINK: 

https://www.riss.kr/search/detail/DetailView.do?p_mat_type=be54d9b8bc7cdb09&control_no=ef54d3a0876fa98cffe0bdc3ef48d419&keyword=INVERTER%20THREE-PHASE

LINK ALTERNATIVO: https://www.mediafire.com/file/npvw61981whwbo0/Research+on+Control+Strategy+of+High-power+Three-phase+Combined+Inverter.pdf/file