Improvement in Power Quality Performance using S-Transform Based D-STATCOM

Electrical energy is a dependable and widely used forms of energy. It is easily convertible from one form to other. With successive progression in the technology, the dependency on electrical energy has been increased rapidly. Nevertheless, the inherent quality of supplied power has been affected by numerous in-system and peripheral factors of the power system. The manifestation of harmonics, voltage and frequency dissimilarities depreciate the performance of the system delivering the power. In this literature, the recurrently befalling power quality problems like voltage variation in the form of sag, swell, etc are discussed. S-Transform Transform method are used to detect and analyse this power wave and record the problem. Various methods are used to overcome this recurring problem. The declination of voltage sags is conceivable by the solicitation of Distribution Static Compensator (D-STATCOM) with L-C-L Passive Filter in consumer side supply system. The structured model is grounded on the Voltage Source Converter (VSC). It injects a current into the connected system to diminish the drop or rise in voltage. L-C-L Passive Filter was supplemented to compensator to progress the quality and lessens harmonic falsification and low power factor (PF).