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BY

ABDUL RAHEEM (08K71A0238)

MOHD IMRAN (08K71A0241)SHAIK MAHAMMAD HANEEF (08K71A0252)

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The Main Aim of wind

turbine systems is to

Develop the ContinuousIncrease of the Output

Power

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This project is depends power system and control

system

This project is mainly based on mat lab software

The name mat lab stands for matrix laboratory

It is a programming language

Wind Turbines are essential for clean energygeneration .

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The amount of wind energy generated depends on the

site & weather conditions.

Modern day wind turbines contains Doubly Fed

Induction generators.

Doubly Fed generators have windings on both

stationary & rotator parts.

Power generated through these type of wind turbines

containing doubly fed generators is summation of

real power & reactive power.

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In Ac System when there is a Time Shift

between voltage & current reactive

power is generated with active power.

Reactive power is a very important

quantity in electric power systems since

it affects the efficiency of these systems.

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Reactive power can produce over-voltages in

electric transformers by Ferranti effect, which

produces bad power quality.

Hence it is very important to control reactivepower generation and flow.

Here we focusing on the control of reactive

power flow in doubly fed induction generator

(DFIG) drive units. The main goal is to achieve good response of

reactive power at the rotor and grid side converters

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Any low-power wind turbines built to-date were constructed

according to the Danish concept

In which wind energy is transformed into electrical energy

using a simple squirrel-cage The rotor of the wind turbine is coupled to the generator shaft

The construction and performance of fixed-speed wind

turbines very much depends on the characteristics of

mechanical sub circuits

A fast and strong variation of Electrical output power can

be observed.

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ASG is nothing but Adjustable Speed

Generators

Modern high-power wind turbines are

capable of adjustable speed operation.

They are cost effective and providesimple pitch control

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Doubly fed induction generator consists of

a four-quadrant ac-to-ac converter

It Reduce inverter cost, because inverter

rating is typically 25% of total system

power

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MATLAB/SIMULINK

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It is applicable in areas when

wind is constantly blowing

It is used to produced electricityin small quantity for small areas

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By variable DIFG we generatated

constant power.

And also reactive power reduced.

Power quality improved.

Less maintained cost.

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These design for reactive power regulators in DFIG drives

using both the RSI and the MSI.

Different approaches to determine the reactive power

controller gains based on a simplified inner current control

transfer function were described.

The experimental results showed the dynamics of the

regulation of the reactive power flow is reduced.

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Thanks you