Analysis and simulation of a single-phase seven-level inverter controlled by modified sinusoidal PWM technique

作     者：V.Srinath Man Mohan Agarwal D.K.Chaturvedi 

作者机构：Department of Electrical Engineering Faculty of EngineeringDayalbagh Educational InstituteAgraIndia 

出 版 物：《International Journal of Modeling, Simulation, and Scientific Computing》 (建模、仿真和科学计算国际期刊（英文）)

年 卷 期：2021年第12卷第4期

页      面：120-139页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Induction motor MATLAB/SIMULINK Seven-level inverter single triangular carrier SPWM stepped reference signals THD 

摘      要：In this paper,a modified sinusoidal pulse width modulation(MSPWM)technique and a modified single-phase H-bridge seven-level inverter is *** switching pulses for the proposed seven-level inverter are generated using a single triangular carrier waveform,a fully rectified sinusoidal signal,and three stepped reference signals(Uref1,Uref2 and Uref3).Using optimization technique,the magnitude of the stepped reference signal is determined so that the total harmonic distortion(THD)of the output voltage waveform is minimum and the fundamental component,RMS value of the voltage is improved for a given modulation index Ma as compared to the sinusoidal pulse width modulation(SPWM).By the implementation of the new scheme,the seven-level of the inverter output voltage level(+Vdc,+2Vdc/3,+Vdc/3,0,−Vdc,−2Vdc/3,−Vdc)is obtained for any given modulation ***,if only two stepped reference signals are used then the inverter will act as a five-level inverter for any modulating index *** proposed MSPWM and seven-level inverter are simulated on MATLAB/SIMULINK for R,R-L load and on a single-phase capacitor-start and capacitor-start-run Induction Motor.