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

IEEE IECON2025 SYPA Winner - Resonant Converter with Reconfigurable Rectifier-Authors: Milan van de Zanden, Levy Ferreira Costa, João Victor Guimarães França. -Affiliation: Department of Electrical Engineering – Eindhoven University of Technology

 

 

 Reconfigurable Rectifier-Based Resonant Converter for Wide Output Voltage Applications -Authors: Milan van de Zanden, Levy Ferreira Costa, João Victor Guimarães França. -Affiliation: Department of Electrical Engineering – Eindhoven University of Technology -Paper abstract: Newer electric vehicle (EV) architectures require different charging voltages compared to the old systems, and to improve compatibility between chargers, a wide output voltage is desirable. While resonant converters offer high efficiency, the efficiency is typically closely tied to fixed operating conditions, making it difficult to maintain high efficiency across a wide output voltage range. This paper proposes a secondary rectifier architecture that enables wide-range output voltages with minimal complexity. With two switches, the rectifier can generate four discrete output voltages to achieve a wide voltage range without changing the switching frequency. Voltage expressions are derived from the analysis of equivalent circuit models for the four operation modes. To validate the operation of the proposed topology, simulation results are described and discussed for a 1 kW output power converter, with an input voltage of 150 V, and rectifier conversion gains of 1, 1.33, 2, and 4.

“Best Industrial Practices Applied as Control Measures to Reduce Incident Energy at Vale’s Sol do Cerrado Plant” by Eng.Anna Junqueira -XII ESW Brasil - Electrical Safety Workshop, promovido pelo IEEE e IAS, representando a SM&A Sistemas Elétricos.

 

         

“Best Industrial Practices Applied as Control Measures to Reduce Incident Energy at Vale’s Sol do Cerrado Plant” by Eng.Anna Junqueira -XII ESW Brasil - Electrical Safety Workshop, promovido pelo IEEE e IAS, representando a SM&A Sistemas Elétricos. Excelente palestra que aborda quatro possiveis soluções para a redução da energia incidente em painéis de inversores solares, um contexto desafiador que combina sistemas em corrente alternada e corrente contínua.

LANÇAMENTO DO LIVRO "O LABORATÓRIO BRASILEIRO DE ARCO ELÉTRICO" DR.MARCIO BOTTARO ,DR. ILDO LUÍS SAUER-XII Electrical Safety Workshop – ESW Brasil-SÃO PAULO-7 A 9 OUTUBRO 2025

 

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