International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
COMPARATIVE STUDY OF CLOSED LOOP CONTROL DFIG BY USING FUZZY LOGIC AND PI CONTROLLERS Voggu Sai Teja Sagar1 and Dr. S Tara Kalyani2 1 M.Tech, Student, Dept. of Electrical and Electronics Engineering, JNTUHUCEST,
Hyderabad, India.
2 Professor of Electrical and Electronics Engineering JNTUHUCEST, Hyderabad, India.
-------------------------------------------------------------------------***------------------------------------------------------------------Abstract Doubly-fed induction generator (DFIG), maybe a producing rule broadly utilized in wind turbines. By utilizing the converter to control the rotor streams, it is conceivable to alter the dynamic and receptive control nourished to the framework from the stator freely of the generator's turning speed. a doubly-fed Induction machine a wound-rotor doublyfed electric machine and has a few focal points over a customary Induction machine in wind control applications. To begin with, as the rotor circuit is controlled by a control hardware converter, the Induction generator can both moment and send out responsive control. This has imperative results for control framework steadiness and permits the machine to bolster the network amid extreme voltage unsettling influences. Moment, the control of the rotor voltages and streams empowers the Induction machine to stay synchronized with the network whereas the wind turbine speed changes. A variable-speed wind turbine utilizes the accessible wind asset more effectively than a fixed-speed wind turbine, particularly amid light wind conditions. Third, the taken toll of the converter is moo when compared with other variable speed arrangements since as it were a division of the mechanical control is encouraged to the lattice through the converter, the rest being encouraged to the lattice specifically from the stator The fluffy rationale controller is a set of etymological control rules related to the double concepts of fluffy suggestion and the compositional run the show of deduction. The FLC gives a calculation that can change over the phonetic control methodology based on master information into a programmed control methodology. The execution of such control comprises interpreting the input factors to a dialect like positive huge, zero, negative little, etc., and building up control rules so that the choice prepare can create the fitting yields. Fluffy control (FC) utilizing etymological data has a few points of interest such as vigor, model-free, all-inclusive estimation hypothesis, and rules-based calculation. This paper points to compare the execution of the Proportional-Integral (PI) controller and Fluffy rationale controller for vector control of the rotor side converter (RSC). The objective is to supply free control of stator dynamic and responsive control, as well as ideal speed following for the greatest vitality capture. A vector control conspire for the network side converter (GSC) will also be inspected, to supply an autonomous control of slip dynamic and receptive control traded between the lattice and GSC. The comes about of this comparison will be utilized to decide which of the two controllers is more reasonable for vector control of the RSC and GSC. The study will moreover give an understanding into the potential of both PI and Fluffy rationale controllers in giving autonomous control of stator dynamic and receptive control, as well as ideal speed following for most extreme vitality capture. This control technique is executed in MATLAB/SIMULINK environment. Keywords: —MPPT, DFIG, Rotor Side Converter(RSC), Grid Side Converter(GSC), PI Controllers, Fuzzy logic control, Vector control, Wind Energy Conversion System.
Ⅰ. INTRODUCTION 1.1 Background and Motivation Investigating in wind control era frameworks is booming due to the expanded request for renewable vitality sources. The double-fed Induction generator (DFIG) is broadly utilized in wind turbines due to its preferences over ordinary Induction machines, such as controlling rotor streams and bringing in and sending out receptive control. Control of the rotor voltages and streams empowers the Induction machine to stay synchronized with the network whereas the wind turbine speed changes. This leads to more effective vitality capture. The DFIG innovation empowers the turbine to capture vitality from the wind and nourish it into the lattice. This gives a dependable source of renewable vitality, which makes a difference to decrease dependence on fossil powers and relieve the impacts of climate alteration. The motivation for this term paper is to compare two control methodologies, fluffy rationale, and PI controllers, for DFIG used in wind turbines. In spite of the fact that PI control could be a well-known strategy for DFIG control, fluffy rationale control has a few focal points, such as vigor and model-free characteristics, making it a promising choice for DFIG control methodologies. This investigation gives an in-depth investigation of both control strategies' execution in the autonomous control of stator
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