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Robust Design of Damping Controller for Power System using a combination of Flower Optimization algorithm and Optimal Control Theory
Abstract
The power system experience low frequency oscillations due to various disturbances. It is very
necessary to damp these oscillations else it will endanger the system security and stability. High gain
and fast acting excitation systems do not provide the necessary damping torque and it can provide the
sufficient synchronising torque only. Lack of damping torque causes the oscillations of generator rotor,
So, Power system stabilizer (PSS) is used in the proposed work along with excitation system. PSS
provide an additional signal to the input of excitation system. So, that an electrical torque is produced
by the PSS in the generator which is proportional to rotor speed deviation. The gains of the PSS have
been tuned by a novel flower optimization algorithm. The PSS is used in the system to improve the
stability. The stability is further improved using optimal control theory and feedback gain k is passed
to the system which ensures and guarantees the robustness of the system. Thus, the proposed work is a
combination of flower optimization method and LQR based optimal control method for damping the
low frequency oscillations in the system.
Keywords
References
Lal Bahadur Prasad, Barjeev Tyagi, Hari Om Gupta,” Modelling & Simulation for Optimal Control
of Nonlinear Inverted Pendulum, Dynamical System using PID Controller & LQR “, Sixth Asia
Modelling Symposium, IEEE,2012, pp.138-143.
Akhil Jose, Clint Augustine, Shinu Mohanan Malola, Keerthi Chacko,” Performance Study of PID
Controller and LQR Technique for Inverted Pendulum “, World Journal of Engineering and
Technology, Vol.3, 2015, pp.76-81.
A.N.K. Nasir, M.A. Ahmad, M.F. Rahmat,” Performance Comparison between LQR AND PID
Controller for an Inverted Pendulum system”, International Conference on Power Control and
Optimization, May 2008.
P. Kumar, O.N. Mehrotra, J. Mahto,” Controller Design of Inverted Pendulum using Pole
Placement and LQR”, IJRET, Vol. 1 No. 4, Dec 2012, pp. 532 – 538.
Linus A. Alooa, Peter K. Kihatob, Stanley I. Kamau,” DC Servomotor-based Antenna Positioning
Control System Design using Hybrid PID-LQR Controller”, European International Journal of
Science and Technology, Vol. 5 No. 2 March, 2016, pp 17-31.
Pikaso Pal, Rajeeb Dey, Raj Kumar Biswas, Shubhashish Bhakta, “Optimal PID Controller Design
for speed control of a separately excited DC motor. A FIREFLY based optimization approach”,
International Journal of Soft Computing, Mathematics and Control Vol. 4, No. 4, November 2015,
pp.39-48.
Nikhil Tripathi, Rameshwar Singh,” Optimization Speed Control of DC Separately Excited Motor
Using Tuning Controller of Linear Quadratic Regulator (LQR) Technique”, International Journal
of Engineering Trends and Technology, Vol.9, No. 10 - Mar 2014, pp.492-496.
Mohammad Chessab Mohammed Jaafar AL-Bermani Mahdi,” LQR Controller for Kufasat”,
Journal of Kufa– PHYSICS, Vol.6, No.1,2014, pp13-20.
K. Harshavardhana Reddy, Prabhu Ramanathan, Sudha Ramasamy,” LQR based PI plus PD
controller to control the Non-linear process”, Conference on Green Engineering and Technologies,
IEEE,2016.
Vinodh Kumar, Jovitha Jerome,” Robust LQR Controller Design for Stabilizing and Trajectory
Tracking of Inverted Pendulum “, International Conference on Design and Manufacturing,2013,
pp.169 – 178.
Kok Kai Yit, Parvathy Rajendran and Lim Kah Wee,” Proportional-derivative linear quadratic
regulator controller design for improved longitudinal motion control of unmanned aerial vehicles
“, International Journal of Micro Air Vehicles, January-March 2016, pp.41–50.
Jamal M. Ahmed Optimal LQG Controller Based on Genetic Algorithm Technique for Speed
Control of DC Motor”, International Journal of Engineering and Innovative Technology, Vol.7,
No.1, July 2017, pp33-36.
Sandeep Yadav, Mukhtiar Singh Mohan,” Modelling and Simulation of Reactive Power Control of
Wind-Diesel Hybrid System”, International Journal of P2P Network Trends and Technology, Vol.3,
No.7, August 2013, pp 363-368.
Mekha M.L, Aswin R.B,” LQR based Speed Control of BLDC Motors”, SSRG International
Journal of Electrical and Electronics Engineering, Vol.3, No.6 June 2016, pp 7-12.
Ishak Ertugrul, Osman Ulkir, Nihat Akkus,” Speed Control of Dc Motor Based on Linear Quadratic
Regulator Method “, International Journal of Research in Engineering & Advanced Technology,
Vol.4, No.5, Oct - Nov, 2016, pp 33-36.
Xin-She Yang Flower Pollination Algorithm: An Introduction, Research Gate, April 2020, pp 1-
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