Prospects for IGBT application in electrical power converters for industrial high-current DC loads

International Conference on Mechanical Engineering, Automation and Control Systems 2018

Veprikov, A.A.^1 ; Abramovich, B.N.^1

Department of Electromechanics and Eletric Power, Saint Petersburg Mining University, 2, 21st Line, St Petersburg

199106, Russia^1

关键词: Active rectifiers;    Desynchronization;    Electrical power;    Energy performance;    Industrial power;    Specific energy consumption;    Switching process;    Total harmonic distortion (THD);   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/560/1/012131/pdf
DOI  :  10.1088/1757-899X/560/1/012131

来源: IOP

【 摘 要 】

The paper presents the research data of the electrical power converters used for a powering industrial vacuum DC arc furnace. The authors have analyzed energy performance of the power converter with a parametric current source (PCS) and the converter based on switched-mode power supply (SMPS) units with IGBT switches. The research shows that the converter with SMPS units has greater efficiency, thereby reducing specific energy consumption. To improve power quality in industrial power grids, which provide electricity to high-current DC loads, a converter design based on current-source-type active rectifiers is proposed. The simulations carried out by the authors have shown that desynchronization of AR switching processes in the proposed converter system allows one to reduce total harmonic distortion (THD) of the mains voltage.