Digital Single-phase Thyristor AC Voltage Regulator Research Based on Fuzzy PID and APF Control

被引：0
|
作者：
Li, Fengxiang [1 ]
Chuan, Gu [1 ]
机构：
[1] Jiangsu Univ, Zhenjiang 212013, Peoples R China
来源：
ADVANCED RESEARCH ON ENGINEERING MATERIALS, ENERGY, MANAGEMENT AND CONTROL, PTS 1 AND 2 | 2012年 / 424-425卷
关键词：
AC Voltage; Fuzzy control; PID control; APF;
D O I：
10.4028/www.scientific.net/AMR.424-425.1262
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In the APF system, PWM control plays an important role in improvement of power quality and harmonic compensation. Given the current PWM control method assumes DC voltage as constant. So the APF operating loss and energy exchange among system components cause the DC voltage the certain fluctuation which deteriorates the effect of harmonic compensation. This paper presents an improved PWM method which uses the designed fuzzy PID controller to control the deviation between the calculated voltage and the set one, adjust the size of the duty cycle to modify PWM waves, and make the output stability in the new set-point. Finally, it shows the simulation results in this paper. This improved PWM approach makes the AV output to avoid the influence from the DC fluctuation, and obtains the ideal harmonic compensation effect.
引用
收藏
页码：1262 / 1265
页数：4
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