A Novel Control Scheme for Load Frequency Control

Majlesi Journal of Electrical Engineering

مقاله 4، دوره 7، شماره 2، شهریور 2013، صفحه 31-40   

نوع مقاله: Review Article

نویسندگان

Monika Gupta^{* 1}؛ Smriti Srivastava²؛ J.R.P Gupta²

¹Maharaja Agrsen Institute of Technology, Sector 22, Rohini, New Delhi, India

²Netaji Subhas Inst. of Tech,Sector 3,Dwarka, New Delhi, India.

چکیده

In this paper, a hybrid of Neural Network (NN) and Fast Traversal Filter (FTF) based controller is used to determine the optimal parameters of Load Frequency Control (LFC) of a realistic two area power system. The two area power system is modeled considering the various non -linearities like governor dead band, generation rate constraint (GRC) and boiler dynamics.  Input to the controller i.e. the error signal is divided into two parts- linear and non- linear. The linear part of the input signal is minimized by the FTF algorithm, whereas the non- linear part is minimized by the NN algorithm.  The output of the controller is the sum of the outputs of NN and FTF networks. The proposed hybrid controller requires less number of samples for training of weights, thus making the system fast.  This is highly desirable in power quality problems. The various components of power system are reduced to transfer functions and the system performance is analyzed for 1% step load perturbation in area1 with different controllers- proportional and integral (PI), neural network (NN) and NN+FTF based controllers. The simulations demonstrate the fast and smooth performance of the power system with the proposed controller. Simulated results evince the superiority of the proposed hybrid controller.

کلیدواژه‌ها

en

مراجع

[1] K.Sabahi, A. Sharifi,M.Aliyari Sh., M. Teshnehlab and M. Alisghary,’Load Frequency Control in Interconnected Power System Using Multi Objective PID Controller,’ Journal of Applied Sciences 2008,pp3676-3681.

[2] Nanda J, Mishra S and Saikia LC, Maiden,’Application of Bacterial Foraging-Based Optimization Technique in Multi-Area Automatic Generation Control,’ IEEE Transactions on Power Systems, vol.24, no.2, 2009, pp.602-609.

[3] J. C. Basilio and S. R. Matos,‘Design of PI and PID Controllers with Transient Performance Specification’, IEEE Transactions On Education, vol. 45, no. 4, November, 2002, pp 364-370.

[4] K.Sabahi, M.A. Nekoui, M. Teshnehlab. M. Aliyari, M. Mansouri,’Load Frequency Control in Interconnected Power System Using Modified Dynamic Neural Networks,’ IEEE Mediterranean Conference on Control and Automation, July 27-29, 2007,Athens.

[5] B. Venkata Prasanth,. S. V. Jayaram Kumar, ‘Load Frequency Control for a two Area Interconnected Power System using robust Genetic Algorithm Controller’, Journal of Theoretical and Applied Information Technology, 2008.

[6] Zwe-Lee Gaing,’A Particle Swarm Optimization approach for Optimum Design of PID Controller in AVR System,’ IEEE Transactions on Energy Conversion, vol.19, no.2, 2004, pp384-391.

[7] Ahmed Benallal, Abdellak Bedkrid,’ A Simplified FTF- type Algorithm for Adaptive filtering’, Journal of Signal Processing, vol.87, issue 5, May 2007.

[8] B. Anand1 and A. Ebenezer Jeyakumar,’Load Frequency Control with Fuzzy Logic Controller Considering Non-Linearities and Boiler Dynamics,’ICGST-ACSE Journal, ISSN 1687-4811, Vol.8, no.3, January 2009, pp 15-20.