Comparative Study of 31-Level Symmetrical and Asymmetrical Cascaded H-Bridge Multilevel Inverter

被引:1
作者
Prabhu, Rakshitha R. [1 ]
Madhusudhana, J. [1 ]
Puttaswamy, P. S. [2 ]
机构
[1] UVCE, Dept Elect Engn, Bangalore, Karnataka, India
[2] PES Coll Engn, Dept Elect Engn, Mandya 571401, Karnataka, India
来源
EMERGING RESEARCH IN ELECTRONICS, COMPUTER SCIENCE AND TECHNOLOGY, ICERECT 2018 | 2019年 / 545卷
关键词
Multilevel inverter (MLI); Cascaded H-bridge inverter (CHB); Total harmonic distortion (THD);
D O I
10.1007/978-981-13-5802-9_102
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
Multilevel inverters (MLI) are suitable for high power and medium voltage applications. Number of topologies has been introduced among which the cascaded H-bridge (CHB) inverter is widely used because of its simplicity. It consists of number of power semiconductor switches and DC voltage sources to generate step voltage waveform. The use of separate DC voltage source for each H-bridge allows the CHB inverter to be easily integrated with photovoltaic systems. Depending upon DC voltage source, the CHB inverter has two types: symmetrical CHB inverter which consists of equal DC voltage sources and asymmetrical CHB inverter with unequal DC voltage sources. Symmetrical inverter topology suffers from increased number of power devices, complexity and losses with the increase in number of output levels, whereas asymmetrical topology uses less number of power devices for producing higher level output voltage waveform. In this paper, analysis and simulation results for 31-level symmetrical and asymmetrical CHB MLI are presented.
引用
收藏
页码:1185 / 1197
页数:13
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