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- Title
SVM Based Hysteresis Current Controller for DSTATCOM Using Instantaneous Reactive Power Theory.
- Authors
Murugesan, K.; Vijayenthiran, S.; Mervin, J. B.; Muthu, Ranganath
- Abstract
A Distribution STATCOM (DSTATCOM) is a shunt compensation device used for reactive power compensation. It can be used either in the power factor correction mode or in the voltage regulation mode. In this paper, a vector based hysteresis current controller (HCC) for DSTATCOM, operated in the power factor correction mode, is implemented. The control law is derived based on generalized instantaneous reactive power theory. The controller uses errors in current represented in stationary a-β frame, multi-level hysteresis comparators and an associated lookup table to produce a switching pattern, which restricts the errors in currents to lie within a region. Extensive use of zero vectors has been made to reduce the switching frequency and switching losses. The control technique implemented does not require phase locked loop (PLL) to track the line frequency. The use of HCC makes the system robust, and hence independent of load parameter variation, with fast transient response. The performance of vector based HCC is studied in MATLAB/SIMULINK environment and results obtained are satisfactory.
- Subjects
HYSTERESIS motors; ALTERNATING current electric motors; ELECTRIC currents; ELECTRIC power; ELECTRIC potential; MATLAB (Computer software); SIMULATION methods &; models
- Publication
International Review on Modelling & Simulations, 2012, Vol 5, Issue 4, p1710
- ISSN
1974-9821
- Publication type
Article