多电平逆变器中不同调制技术的开关缩减及性能分析

2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES) Pub Date : 2016-07-04 DOI:10.1109/ICPEICES.2016.7853068

Kamaldeep, J. Kumar

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引用次数: 10

摘要

功率变换器是由不同电力驱动系统驱动的工业过程、火车牵引和船舶推进中的一项重要技术。本文采用次多电平逆变器获得多电平波形，在相同输出电平下，与其他传统多电平逆变器相比，使用的开关数减少。比较了采用近电平控制和选择性谐波消除两种开关方案的7电平次多电平逆变器输出电压产生的THD。在MATLAB/SIMULINK环境下对7电平次多电平逆变器进行了仿真研究。仿真结果表明，与最接近电平控制技术相比，采用选择性谐波消除技术时输出电压的THD较小。

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Switch reduction and performance analysis using different modulation technique in multilevel inverter

Power converter is an important technology in industrial process, train traction and ship propulsion powered by different electric drive system. In this paper, sub-multilevel inverter is used to obtained multilevel waveform which uses reduced number of switches in comparison of other conventional multilevel inverter for same output levels. A comparison of THD produced in the output voltage generated using 7 level sub-multilevel inverter by employing two switching schemes i.e. nearest level control and selective harmonic elimination have been made. Simulation studies in MATLAB/SIMULINK environment have been carried out for 7 level sub-multilevel inverter. Based on simulation results, it is observed that THD in output voltage is less when selective harmoni elimination technique is employed as compared to nearest level control technique.

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来源期刊

2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES)

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