Dual angle control of line frequency switched STATCOM under single line to ground fault and mitigation of voltage dip

Dual angle control of line frequency switched STATCOM under single line to ground fault and mitigation of voltage dip
Author(s):
Swathy Sasikumar, Jaison Cherian
Keywords:
angle control, dual angle control(DAC), STATCOM.
Abstract
This paper presents a new control method of reducing the dc link voltage oscillations as well as the voltage dip mitigation. The main improvement is the decrease of negative sequence current, dc voltage oscillation under fault condition and mitigation of voltage dip at the point of common coupling when inductive and capacitive load is connected. The proposed control scheme is for adding appropriate oscillation to the conventional angle controller output. The method improves sensitivity as well as reliable when the STATCOM works under fault conditions and when connected to loads.
Article Details
Unique Paper ID: 143882 Publication Volume & Issue: Volume 3, Issue 3 Page(s): 219 - 226
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