International Journal of Electrical and Computer Engineering (IJECE)
Vol. 5, No. 3, June 2015, pp. 379~390
ISSN: 2088-8708 379
Journal homepage: http://iaesjournal.com/online/index.php/IJECE
A New Hybrid Artificial Neural Network Based Control of
Doubly Fed Induction Generator
G. Venu Madhav*, Y. P. Obulesu**
* Department of Electrical and Electronics Engineering, B. V. Raju Institute of Technology, India
** Department of Electrical and Electronics Engineering, KL University, India
Article Info ABSTRACT
Article history:
Received Nov 14, 2014
Revised Feb 19, 2015
Accepted Mar 2, 2015
In this paper, Hybrid Artificial Neural Network (ANN) with Proportional
Integral (PI) control technique has been developed for Doubly Fed Induction
Generator (DFIG) based wind energy generation system and the performance
of the system is compared with NN and PI control techniques. With the
increasing use of wind power generation, it is required to instigate the
dynamic performance analysis of Doubly Fed Induction Generator under
various operating conditions. In this paper, three control techniques have
been proposed, the first one is using PI controller, the second one is ANN
control, and the third one is based on combination of ANN and PI. The
performance of the proposed control techniques is demonstrated through the
results, determined by using MATLab/Simulink. From the results it is
observed that the dynamic performance of the DFIG is improved with the
Hybrid control technique.
Keyword:
Control strategy
Doubly fed induction generator
Neural networks
Proportional integral
Wind power generation
Copyright © 2015 Institute of Advanced Engineering and Science.
All rights reserved.
Corresponding Author:
G. Venu Madhav
Department of Electrical and Electronics Engineering,
Padmasri Dr. B. V. Raju Institute of Technology,
Vishnupur, Narsapur, Medak Dist., 502313,
AP, India.
Email: venumadhav.gopala@gmail.com
1. INTRODUCTION
Most of the countries in the world are now concentrating on renewable energy sources, in
particularly wind energy. The increase in size and level of penetration of the wind farms has major impact on
the power system including the unit commitment and load dispatch. It has impact on the voltage of the feeder
and the substation when a local power system is considered, [1]-[2].
The increase in the growth and installed capacity of wind farms makes it necessary to investigate
and develop different control capabilities and strategies. With the necessary control techniques, the wind
farms can be made with the same features as that of conventional power plants. These capabilities and
strategies includes the control of output active power and reactive power of the total wind farm, the control of
affect of parameters of wind farm for any kind of abnormal condition in the grid. This makes the wind power
plants to act as active components of the power supply system.
The purpose and the main aim of these control capabilities are to optimize the generated power and
to manage the safe limits along with automatic operation of the wind turbine. The optimization of generated
power reduces the operating costs, enables uniform dynamic response and better product quality, and helps to
minimize turbine loads which make safe operation of wind turbine with maximizing the capture of wind
energy.
With the aim of extracting the maximum wind power applied to fixed or variable speed wind
turbines, many control strategies were developed by so many authors.