The investigation of the load and frequency Influences on the quality of three phases voltage source inverter current with SHEM modulation pattern

被引：0
|
作者：
Asadi, M. [1 ]
Borjilou, Sh. Rezaei [2 ]
Farahani, H. F. [2 ]
Shoulaei, A. [3 ]
机构：
[1] Fars Higher Training & Res Campus, Dep Elec Eng, Shiraz, Iran
[2] Azad Univ, Dept Elect Engn, Tehran, Iran
[3] Univ Sci & Technol, Dept Elect Engn, Tehran, Iran
来源：
2007 42ND INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE, VOLS 1-3 | 2007年
关键词：
power quality; SHEM modulation; current harmonics; passive filter;
D O I：
10.1109/UPEC.2007.4469082
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Today the voltage source inverters are used in UPS, small and large induction motor drivers and etc. One of the important points in voltage source inverters is the output current quality or the output current harmonics. The voltage modulation is used for increasing the quality of the current in the inverters. One of the modulation methods is SHEM modulation (Selected Harmonic Elimination Modulation) in voltage source inverters. Output harmonics are depending on the load and the operational frequency in this modulation. In this paper by means of the made laboratory inverter, the influence of the frequency and different loads (pure resistance, resistance-inductance, pure inductance) have been investigated on the inverter output harmonics. For this purpose different operational modes has been defined for the inverter and the influence of the different frequency have been investigated and evaluated by means of the passive filter (for decreasing of the current harmonics amplitude) on the quality of the inverter output current. Mentioned inverter has been modeled and simulated in PSPICE software too. The Simulated and the experimental results confirm together.
引用
收藏
页码：979 / 985
页数：7
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