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Simplified Modulation Method for Hybrid Two-stage Matrix Converter

Xiong Jia

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Abstract

In order to solve the problem of complex control strategies and high voltage fluctuations of DC bus ofhybrid TSMC,for which a simplified method of pulse width modulation(PWM)was proposed in the rectifier stage.This method can simplify the calculation of duty and can make the rectifier stage to output direct voltage with constantaverage value in every switching cycle,and the SVPWM modulation method is convenient to be used in level inverterstage,so it contains the advantage of the conventional method. Finally,modeling and simulation was carried out inMatlab/Simullink to verify the correctness of the new modulation method.

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What this paper is about

In order to solve the problem of complex control strategies and high voltage fluctuations of DC bus ofhybrid TSMC,for which a simplified method of pulse width modulation(PWM)was proposed in the rectifier stage.This method can simplify the calculation of duty and can make the rectifier stage to output direct voltage with constantaverage value in every switching cycle,and the SVPWM modulation method is convenient to be used in level inverterstage,so it contains the advantage of the conventional method. Finally,modeling and simulation was carried out inMatlab/Simullink to verify the correctness of the new modulation method.

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Available abstract

In order to solve the problem of complex control strategies and high voltage fluctuations of DC bus ofhybrid TSMC,for which a simplified method of pulse width modulation(PWM)was proposed in the rectifier stage.This method can simplify the calculation of duty and can make the rectifier stage to output direct voltage with constantaverage value in every switching cycle,and the SVPWM modulation method is convenient to be used in level inverterstage,so it contains the advantage of the conventional method. Finally,modeling and simulation was carried out inMatlab/Simullink to verify the correctness of the new modulation method.

Key concepts: Pulse-width modulation, Duty cycle, Modulation (music), Control theory (sociology), Correctness, Rectifier (neural networks), Computer science, Voltage

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