POWER QUALITY IMPROVEMENT ON 14 BUS IEEE SYSTEM USING UPQC

Power quality has now turned into the most important issue for equally transmitters and domestic users. People are doing efforts to enhance power quality. The custom power devices which are used for power quality enhancement are basically made from power electronic devices for example the state transfer switch (STS) and active filters. In this present work single – phase UPQC with minimum voltage angle injection control is used for 14 bus system and the result has been compared with and excluding power electronic custom power device. The required model is developed in Simulink/MATLAB and both types of loads has been applied either steady state or dynamic. The resistance and inductive loads has been inserted at the center of simulation model by turning on and off of circuit breaker, which is placed at bus 2. The output is compared in terms of real and reactive power. The system with UPQC has enhanced values of real power, voltage and current and also posse's only minimum harmonics when load is ON and OFF. However, arrangement without UPQC is not constant and has excess harmonics in current and voltage waveforms and also high values of Total Harmonic Distortion