Non-integer order control for LFC problem of two-area thermal power system with GRC

In this paper, a non-integer (fractional) order controller namely tilt integral derivative controller has been introduced as supplementary controller in automatic generation control (AGC) of a two-area power system. Generally, classical control approach such as PI control and PID control has been most widely used in AGC scheme, but due to increase in complexity of the power system, the performance of classical control approach has been lagged behind. To study the effectiveness of tilt integral derivative (TID) controller in AGC scheme, two case studies presenting different non-linearities have been presented in the paper. Non-linearities in the form of step load perturbations and generation rate constraint (GRC) have been introduced in the system. For such operating conditions, an optimization problem using ITAE performance index has been formulated and a differential evolution algorithm has been used to optimize and determine the parameters of PI, PID and TID controller. Further, a comparison between PI, PID and TID control approach has been presented in the paper which shows the robustness property of TID controller and its superiority over PI and PID controller in an interconnected power system.

[1]  M. Mohamed Thameem Ansari,et al.  Load frequency control using Bat inspired algorithm based dual mode gain scheduling of PI controllers for interconnected power system , 2015 .

[2]  Olle Ingemar Elgerd,et al.  Electric energy systems theory , 1982 .

[3]  Surya Prakash,et al.  Simulation based neuro-fuzzy hybrid intelligent PI control approach in four-area load frequency control of interconnected power system , 2014, Appl. Soft Comput..

[4]  Saurabh Chanana,et al.  Load frequency control of a two-area multi-source power system using a tilt integral derivative controller , 2018 .

[5]  Saurabh Chanana,et al.  Automatic generation control using optimally tuned tilt integral derivative controller , 2016, 2016 IEEE First International Conference on Control, Measurement and Instrumentation (CMI).

[6]  Saurabh Chanana,et al.  Tilt Integral Derivative control for two-area load frequency control problem , 2015, 2015 2nd International Conference on Recent Advances in Engineering & Computational Sciences (RAECS).

[7]  Rainer Storn,et al.  Differential Evolution – A Simple and Efficient Heuristic for global Optimization over Continuous Spaces , 1997, J. Glob. Optim..

[8]  Saurabh Chanana,et al.  Application of tilt integral derivative control on two-area power system , 2016 .

[9]  Rajeev Gupta,et al.  Optimization of LFC using Bacteria Foraging Optimization Algorithm , 2013 .

[10]  Prakash Kumar Hota,et al.  Controller parameters tuning of differential evolution algorithm and its application to load frequency control of multi-source power system , 2014 .

[11]  Muwaffaq I. Alomoush,et al.  Load frequency control and automatic generation control using fractional-order controllers , 2010 .

[12]  Y. Chen,et al.  A comparative introduction of four fractional order controllers , 2002, Proceedings of the 4th World Congress on Intelligent Control and Automation (Cat. No.02EX527).

[13]  Sidhartha Panda,et al.  Hybrid BFOA-PSO algorithm for automatic generation control of linear and nonlinear interconnected power systems , 2013, Appl. Soft Comput..