|
|
|
| Three-Level H-Bridge Cascade Type Multi-Level Inverter |
| Zhang Ying1, Li Chongjian1, Zhu Chunyi1, Wang Chengsheng1, Lan Zhiming2 |
| 1. Automation Research and Design Institute of Metallurgical Industry Beijing 100071 China 2. Institute of Electrical Engineering, Chinese Academy of Sciences Beijing 100080 China |
|
|
|
|
Abstract Cascade type multi-level inverter is adopted to high power AC drives due to small harmonic components of the output voltage and facilitating greater modularity. In this paper, the problems which are interrelated with the topology and control method of three-level H-bridge cascade type multi-level inverter with clamped diode are investigated in detail. The differences of cascaded number decide different control methods. Carrier modulation scheme based on cascaded carriers and phased-shifted consideration are presented. Carrier phase opposition disposition pulse width modulation is used in three-level legs, while carrier phase shift pulse width modulation is used both in three-level legs and H-bridges. According to the cascaded number, different carrier phase shift angles are applied in H-bridges. Finally the PSIM emulation results validate this control method, and the output voltage harmonics are analyzed.
|
|
Received: 21 October 2010
Published: 07 March 2014
|
|
|
|
|
|
[1] 刘凤君. 多电平逆变技术及其应用[M]. 北京: 机械工业出版社, 2007.
[2] 李永东, 肖曦, 高跃. 大容量多电平变换器[M]. 北京: 科学出版社, 2005.
[3] Masahiko Tsukakoshi, Mostafa Al Mamun, Kazunori Hashimura. Introduction of a large scale high efficiency 5-level IEGT inverter for oil and gas industry[J]. The 2nd Annual IEEE Energy Conversion Conference and Exhibition, 2010: 4313-4320.
[4] 徐海杰. 中压多电平逆变装置的研究[D]. 杭州: 浙江大学, 2006.
[5] 姚文熙, 吕征宇, 胡海兵. 三电平H桥级联逆变器载波移相脉宽调制方式[J]. 浙江大学学报, 2008, 42(8): 1330-1334.
Yao Wenxi, Lü Zhengyu, Hu Haibing. Carrier phase shift PWM techniques of three-level H-bridge cascaded multilevel inverter[J]. Journal of Zhejiang University, 2008, 42(8): 1330-1334.
[6] 王兆安, 黄俊. 电力电子技术[M]. 北京: 机械工业出版社, 2007.
[7] Medium Voltage AC Drive for Control of Motors up to 6.9 kV. ABB ACS5000. |
|
|
|
2011, Vol. 26 
