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Fuzzy Logic Controller for Low Voltage Ride Through Capability Improvement of Grid Connected Photovoltaic Power Plants

A. Banu Prakash*, T. Devaraju**

* PG Scholar, Department of Electrical and Electronics Engineering, Sri Venkateswara College of Engineering and Technology (Autonomous), A.P., India.

** Head and Professor, Department of Electrical and Electronics Engineering, Sri Venkateswara College of Engineering and Technology (Autonomous), A.P, India.

Periodicity:February - April'2017
DOI : https://doi.org/10.26634/jic.5.2.13498

Abstract

This paper shows a novel use of Fuzzy logic control based adaptive control methodology with the reason for improving the Low Voltage Ride Through (LVRT) capacity of grid associated Photo Voltaic (PV) power plants. The PV arrays are associated with the Point of Common Coupling (PCC) through a DC-DC boost converter, a DC-link capacitor, a grid side inverter, and a three-phase step up transformer. The DC-DC converter is utilized for a more extreme power point following operation in light of the partial open circuit voltage strategy. The grid-side inverter is used to control the DC-link voltage and terminal voltage at the PCC through a vector control plot. The adaptive Proportional-Integral (PI) controller is used to control the power electronic circuits because of its quick convergence. The proposed controller refreshes the PI controller gains online without the need to fine tune or optimize. For practical reactions, the PV power plant is associated with the IEEE 39-bus New England test system. The effectiveness of the proposed control strategy is contrasted and that got utilizing a PI controller- based an ideal PI controller considering subjecting the system to symmetrical, unsymmetrical faults, and unsuccessful reclosing of circuit breakers because of the presence of lasting blame. The validity of an adaptive control system is widely checked by the simulation results.

Keywords

Adaptive Control, Low Voltage Ride Through (LVRT), Photovoltaic (PV) Power Systems, Power System Control, Power System Dynamic Stability

How to Cite this Article?

Prakash, A.B., and Devaraju,T. (2017). Fuzzy Logic Controller for Low Voltage Ride Through Capability Improvement of Grid Connected Photovoltaic Power Plants. i-manager’s Journal on Instrumentation and Control Engineering, 5(2), 8-17. https://doi.org/10.26634/jic.5.2.13498

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