Research Article
Open Access
Modeling and Simulation of SRF and PI Controlled Dstatcom for Power Qualirt Enhancement
Prasad Miska1*, Ashok Kumar Akella2
1-2Department of Electrical Engineering, National Institute of Technology Jamshedpur,
Jharkhand 831014, India
Prasad Miska et al /Int.J. TechnoChem Res. 2016,2(2),pp 141-150.
Abstract
This paper describes the comparative analysis of the steady state behavior of two different
control techniques of distributed flexible AC transmission system (DFACTS) controller called as
distributed static synchronous compensator (DSTATCOM), aimed at power quality (PQ) enhancement in
terms of voltage swell mitigation in a three-phase four-wire (3p4w) distribution system. A DSTATCOM
is one of the major power quality improvement devices which consist of a DC energy source, a voltage
source inverter (VSI), a filter, a coupling transformer and the control system. The control strategy based
on synchronous reference frame (SRF) theory and propositional-integral (PI) controller has been used for
reference current generation of voltage source inverter (VSI) based DSTATCOM. The SRF and PI
control based DSTATCOM is validated through dynamic simulation in a MATLAB\SIMULINK
environment under linear as well as nonlinear loads.
Keywords
Power quality, Voltage swell, DSTATCOM, SRF, PI, VSI
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