کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
704243 | 891234 | 2008 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Effects of balanced and unbalanced voltage sags on DC adjustable-speed drives Effects of balanced and unbalanced voltage sags on DC adjustable-speed drives](/preview/png/704243.png)
This paper analyzes the sensitivity of DC adjustable-speed drives to balanced and unbalanced voltage sags. The influence of sag type, depth, duration and phase-angle jump on DC drives is studied. The control of the DC drive has been taken into account to understand drive behavior in the presence of voltage sags. Two working modes of the DC motor are considered in the study: as a consumer load and as a regenerative load. When the DC motor works as a consumer load, the study shows that sag type and depth have a significant influence on drive behavior. However, the voltage sag can be ridden through if the rectifier firing angle is set correctly by the control. When the DC motor works as a regenerative load, the study shows the consequences of the three-phase rectifier commutation failure due to the voltage sag.
Journal: Electric Power Systems Research - Volume 78, Issue 6, June 2008, Pages 957–966