Various Strategies Comparison of NPC Inverter Current Control Connected to the Grid for Photovoltaic System

被引：0
|
作者：
Hlaili, Mane [1 ]
Hfaiedh, Mechergui [1 ]
Exposto, Bruno [2 ]
Monteiro, Vitor [2 ]
Afonso, Joao L. [2 ]
机构：
[1] Univ Tunis, Ecole Natl Super Ingenieurs Tunis, Lab & Res Groups C3S, Tunis, Tunisia
[2] Univ Minho Guimaraes, ALGORITMI Res Centre, Braga, Portugal
来源：
201415TH INTERNATIONAL CONFERENCE ON SCIENCES & TECHNIQUES OF AUTOMATIC CONTROL & COMPUTER ENGINEERING (STA'2014) | 2014年
关键词：
Photovoltaic Systems; Neutral Point Clamped Inverter; Grid connected; Current Control; Hysteresis; Pulse Width Modulation PWM; Periodic Sampling; Predictive;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Multilevel inverters offer advantages in terms of the output waveform quality due to the increased number of levels used in the output voltage modulation such us three level NPC inverter. The output current and voltage is the same for NPC and half bridge but the difference is the way to generate the signal and its current control. This paper presents a comparative study of four current control techniques such as hysteresis current controller, Predictive current controller, Proportional Integral controller and Periodic sampling current controller. Comparison is done based on switching frequency, harmonic distortion and dynamic response of each method. Simulation of these controllers is done in PSIM environment. Waveforms of output current injected into the grid, THD etc are shown for different current controllers.
引用
收藏
页码：649 / 653
页数：5
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