International Journal of Recent Trends in Engineering & Research

online ISSN

Reactive Power Improvement Using Adaptive Current Controller Method

Publication Date : 27/03/2019

DOI : 10.23883/IJRTER.CONF.20190322.043.OK5L0

Author(s) :

Dr.Sivararaman.P , Senrayan.k.

Conference Name :
1st International Conference on New Scientific Creations in Engineering and Technology - 2019

Abstract :

Most of the pollution issues created in power systems are due to the non-linear characteristics and fast switching of power electronic equipment. Power quality issues are becoming stronger because sensitive equipment will be more sensitive for market competition reasons, equipment will continue polluting the system more and more due to cost increase caused by the builtin compensation and sometimes for the lack of enforced regulations. Efficiency and cost are considered today almost at the same level. In this paper the three-phase grid connected inverter has been investigated. The inverter’s control strategy is based on the adaptive hysteresis current controller. Inverter connects the DG (distributed generation) source to the grid. The main advantages of this method are constant switching frequency, better current control, easy filter design and less THD (total harmonic distortion). Since a constant and ripple free dc bus voltage is not ensured at the output of alternate energy sources, the main aim of the proposed algorithm is to make the output of the inverter immune to the fluctuations in the dc input voltage This inverter can be used to connect the medium and small-scale wind turbines and solar cells to the grid and compensate local load reactive power. Reactive power compensating improves SUF (system usage factor). The simulation results confirm that switching frequency is constant and THD of injected current is low

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