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Design of a three-phase Grid Connector System Using Power Transfer from Park’s Transformation

Smart Grid and Renewable Energy 2024年第5期15卷 123-138页

作者： Birtukan Yenealem Elias Mamushet Department of Metallic Minerals Research and Development Minerals Industry Development Institute Ministry of Mines Addis Ababa Ethiopia Department of Mineral Processing Engineering Addis Ababa Institute of Technology Addis Ababa Ethiopia

Instabilities in grid-connected inverters can arise from a number of sources, including mismatched parameters, grid impedance, faults, and feedback delays. Park’s transformation provides accurate control over reactive and active (real) power. This enhances the overall efficiency of the system by enabling operators to control reactive power compensation and optimize energy flow. In dynamic settings, this guarantees greater system stability and faster response times. The current paper aims to improve the grid system by utilizing the dq0 controller. The current work focuses on the analysis based on simulations and theory, where the state space equation serves as the basis for dq-axis current decoupling. A MATLAB platform was used to simulate the complete system. TDH values of 2.45%, or less than 5%, in the given results are acceptable. The suggested controller was hence appropriate for grid system applications.

关键词： Grid System Inverter Optimization Energy three phase

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Analysis of Multiphysics Field in ESR Process With three Electrodes

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Journal of Iron and Steel Research International 2012年第S2期19卷 937-940页

作者： WANG Fang WANG Bo WANG Zi-kun LI Bao-kuan School of Materials & Metallurgy Northeastern University

The electroslag remelting(ESR)furnaces with three-phase installation by delta or star connection are mainly used to produce the large or super large *** electrical efficiency is significantly improved as the short circuiting through the molten ***,little is found about fundamental research on the electromagnetic field of the ESR system with three-phase installation.A three-dimensional(3D)finite element model was developed to simulate the current density,magnetic field,electromagnetic force,Joule heating and temperature field for a system of electrode,slag and ingot in the ESR system with three-phase installation.

关键词： electroslag remelting processes electromagnetic field joule heating three phase temperature field

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