This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
|
||||||||
|
Paper Details
Paper Title
Adavanced Grid Current Compensator For Distibuted Generation Under Nonlinear Loads And Voltage Distortion
Authors
O.Hari Krishna, D.Tatarao
Abstract
In this paper proposed a fuzzy logic controller based current controller is designed in the synchronous reference frame and compared with the conventional PI controller and with a combination of a proportional–integral (PI) controller and a repetitive controller (RC). It is for an application of an advanced current control strategy for grid-connected operations of distributed generation (DG), which supports the DG to transfer a sinusoidal current into the utility grid despite the distorted grid voltage and nonlinear local load conditions. In addition, the proposed control method does not require the local load current measurement or harmonic analysis of the grid voltage. An RC serves as a bank of resonant controllers, which can compensate a large number of harmonic components with a simple delay function. Hence, the control strategy can be greatly simplified. Therefore, the proposed control method can be easily adopted into the traditional DG control system without installation of extra hardware. Despite the reduced number of sensors, the grid current quality is significantly improved compared with the advanced methodologies like artificial intelligence. The operation principle of the proposed control method is analyzed in detail, and its effectiveness is validated through MATLAB/SIMULINK simulation results.
Keywords- Distributed generation (DG), Fuzzy controller grid-connected inverter, harmonic compensation, nonlinear load, repetitive control.
Publication Details
Unique Identification Number - IJEDR1801080Page Number(s) - 466-475Pubished in - Volume 6 | Issue 1 | January 2018DOI (Digital Object Identifier) - Publisher - IJEDR (ISSN - 2321-9939)
Cite this Article
O.Hari Krishna, D.Tatarao, "Adavanced Grid Current Compensator For Distibuted Generation Under Nonlinear Loads And Voltage Distortion", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 1, pp.466-475, January 2018, Available at :http://www.ijedr.org/papers/IJEDR1801080.pdf
Article Preview
|
|
||||||
|
|
||||||||
