A New Approach for Three-phase Three-level Unity PF Rectifier Considering Alternative Performance Indices

被引：0
|
作者：
Zhang, Shaoru [1 ]
Luo, Fang Lin [1 ]
机构：
[1] Nanyang Technol Univ, Sch EEE, Singapore, Singapore
来源：
ICIEA 2010: PROCEEDINGS OF THE 5TH IEEE CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS, VOL 1 | 2010年
关键词：
Alternative Performance Indices; Unity Power Factor; Three-Phase Three-Level Rectifier; Total Harmonic Distortion;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The three-phase three-level unity PF rectifier can improve the power factor of three-phase rectifier. However, both the power factor (PF) and total harmonic distortion (THD) are degraded in low-output power region, because its "critical input inductor" is calculated for the nominal load condition. A novel reference compensation current strategy for three-phase three-level unity PF rectifier considering alternative performance indices was proposed based on the operation principle of this rectifier. The main concept of the proposed new design for optimal rectifier control lies in that the three-phase load currents are filtered through a current compensator, where the desired source currents after compensation are maintained sinusoidal/balanced or within permissible levels of current distortion and imbalance. In addition, the load power factor can be set to meet a specified target value. The simulation results show that the input power factor can be well improved and input current harmonics can be effectively eliminated under wide load variation.
引用
收藏
页码：515 / 520
页数：6
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