Share
تصميم مسيطر وتحليل مولد حثي ثنائي التغذية مع سرعة الرياح المتغيرة == Controller Design And Analysis of Doubly - Fed Induction Generator With Variable Speed Wind
Author name:
سراج منهل حمید
Supervisor name:
حسین ثاني رشك
General topic:
Electrical, Electronic and Communications Engineering
Specific topic:
Electrical Engineering - Power and Machinery
Degree:
Master
University:
University of Technology - Electrical Engineering Department - Electrical Engineering Branch
Language:
English
University location:
Baghdad
First pages:
34T508 - p.pdf
Abstract:
The Wind Energy is one of renewable energy and has become very popular and more attractive, as a result of many factors, some of these factors are, rising oil prices, worldwide awareness of the decline in world oil production, an raise in the price of natural gas. Therefore the need for renewable energy has been very important.This work deals with Doubly Fed Induction Generator (DFIG) based wind turbine. By studying the performance of DFIG connected to the grid with constant and variable speed wind. Three cases are considered and implemented using Matlab/Simulink. The first case is studied the effect of the size of capacitance at DC - bus with constant wind speed using space vector pulse width modulation (SVPWM) switching frequency 10KHZ and two values of capacitance.The second case is studied the effect of three phase fault condition, at 33KV line.The third case is that when the input is variable speed wind, the simulation results illustrate that is with variable wind speed and conventional values of PI controllers gains the generator system behavior show increasing in rising time and maximum overshoot of generated power, the control circuit is needed for optimization to improve the generated power. This optimization can be made by tuning the controllers parameters with optimal values, so the optimization is made by using Particle Swarm Optimization (PSO). The new optimal controllers parameters(PI - PSO) make the system more efficient from the results by reducing the ripple of DC - Voltage and maximum overshoot. And the generated active power get more smooth and rising time has been reduced.
