A New Sapf Control Power Quality Improvement In Pv Source Integrated Micro Grid Applications For Hormonic Rejection

Abstract

In recent times the power generated by PV source is growing at a fasterrate andaffect the electric power generation market in the way of power prices. But it is very challenging to integrate with distribution system because it directly affects the power quality in a distribution system. This paper proposes a new strategy for power quality (PQ) improvement in a Micro-grid connected PV system is proposed in this paper.This paper present an active power component theory based shunt active power filter (SAPF) to integrate the PV source at Micro-Grid distribution level with the significant reduction of the harmonic. The control strategy mainly consists of the Calculate reference current template,Regulate the DC voltage across PV source and Generation of firing pulses. Overall a high accuracy in source current is achieved by a current control loop, which influences the performance of APF-PV system with fast dynamic response. The fuzzy controller used to compensate DC voltage by voltage control loop. It is also important to note that APC offers a smaller total harmonic distortion of the source current with integrated PV. The steady state and dynamic performance of proposed scheme has been tested by simulation under a diode bridge rectifier load RL in balance & unbalance condition.