A novel method for addressing power quality problems in a distribution system with an unbalanced non-linear load using DSTATCOMs

A novel method for addressing power quality problems in a distribution system with an unbalanced non-linear load using DSTATCOMs
Author(s):
Dr Deepthi Janyavula
Keywords:
Harmonic reduction, power factor improvement, voltage regulation, power quality improvement, distribution static compensator, synchronous reference frame theory.
Abstract
There is requirement of fast acting devices for power quality improvement due to rapidly changing nature of electric distribution. In this paper, a comparative analysis of power quality improvement in a three-phase three-wire distribution system has been observed when one distribution static compensator (DSTATCOM) is connected at the point of common coupling by a three-phase, two-winding transformer and two DSTATCOMs are connected by a three-phase, three-winding transformer. The two-winding and three-winding transformers are in star-delta and star-delta-delta configurations, respectively. The performance of the system is examined when the DSTATCOMs are operated in power factor correction and voltage regulation modes. Their performance is evaluated when various pulse-width-modulation techniques are used along with an unbalanced variable non-linear load. It has been shown that the usage of two DSTATCOMs yields power factor improvement, harmonic reduction and voltage regulation simultaneously.
Article Details
Unique Paper ID: 166351 Publication Volume & Issue: Volume 11, Issue 2 Page(s): 396 - 402
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