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Intelligent Control Method of Power Supply for Tundish Electromagnetic Induction Heating System

Journal of Modern Power Systems and Clean Energy 2020年第6期8卷 1188-1195页

作者： Xinxing Xiang An Luo Yan Li the Electrical and Information Engineering Department Hunan UniversityChangshaChina the School of Automation Central South UniversityChangshaChina

An intelligent control method is proposed to improve the performance of power supply for tundish electromagnetic induction heating,which can adequately regulate the tundish *** topology structure of power supply for tundish electromagnetic induction heating is presented,and its working principle is *** power supply consists of six power units,and each of them consists of a fore-stage threephase rectifier and back-stage single-phase *** feedforward control DC voltage is used by three-phase rectifier to obtain the stable DC voltage supplied to the *** cloud controller based intelligent temperature control algorithm is combined with the power feed-forward algorithm to obtain accurate tracking of the output current and constant temperature control of the tundish steel in the back-stage *** simulation and experiment are performed to verify the accuracy and effectiveness of the proposed method.

关键词： Cloud control electromagnetic induction heating rectifier-inverter tundish

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Energy Saving Analysis and Simulation for Home Electricity

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Journal of Power and Energy Engineering 2020年第9期8卷 35-50页

作者： Nader Barsoum Farah Talib Department of Electrical and Computing Engineering University of Sabah Kota Kinabalu Malaysia

This paper presents the energy saving method by applying the voltage control technique on a single-phase AC source to a thyristor rectifier and an IGBT inverter with LC filter. Based on the LC filter parameter, the values of the gain for the controller are obtainable. The proposed controller structure consists of two loops arranged in a cascaded model. The output of the first loop is the capacitor current. This current is added to the load current in order to obtain the current reference. This reference current value will be compared with the inverter current which produces the error signal to be fed into the second loop in the cascade system. The output of the second loop is the inverter voltage. This voltage is added to the load voltage to produce the voltage reference. This reference is fed to the pulse width modulation generator via the controller and compared with the triangular wave. This energy-saving circuit is designed in blocks using MATLAB Simulink.

关键词： Energy-Saving Circuit rectifier-inverter LC Filter PI And PR Controllers MATLAB/Simulink

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