ANFIS based unified power-quality conditioner for power quality improvement in multi feeder system

摘要

This paper presents a new topology of unified power-quality conditioning system using ANFIS, capable of simultaneous compensation for voltage and current in multi-bus/multi-feeder systems for Power Quality Improvement. In this configuration, two shunt voltage-source converter (shuntVSC) and two series VSCs exist. The system can be applied to adjacent feeders to compensate for supply-voltage and load current imperfections on the main feeder and full compensation of supply voltage imperfections on the other feeders. In the proposed configuration, all converters are connected back to back on the dc side and share a common dc-link capacitor. Therefore, power can be transferred from one feeder to adjacent feeders to compensate for sag/swell and Current/Voltage Harmonics. The proposed topology can be used for simultaneous compensation of voltage and current imperfections in both feeders by sharing power compensation capabilities between two adjacent feeders. The Proposed System performance is analyzed by simulation results using MATALB/SIMULINK.