NDLI: Design of power system stabilizer using robust control techniques

Content Provider	IEEE Xplore Digital Library
Author	Gupta, N. Narayan, S.
Copyright Year	2015
Description	Author affiliation: Banasthli Univ., Banasthli Niwayi, India (Gupta, N.) \|\| PEC Univ., Chandigarh, India (Narayan, S.)
Abstract	The power system is a dynamic system and it is constantly being subjected to disturbances. It is important that these disturbances do not drive the system to unstable conditions. Due to certain disturbances, electromechanical oscillations of small frequency set up. The kind of stability involved due to oscillations falls under small signal stability. The PSS has been found effective in damping such oscillations and ensure small signal stability of the power system. In this paper, the robust PSS have been designed to damp the rotor speed and rotor angle deviations with respect to time for SMIB power system. The PSS have been designed using $H_{∞}$ based robust control techniques. Here, the main focus has been to minimize the $H_{∞}$ norm of the linear fractional transfer function (LFT) which the transfer function matrix between the desired vector of commanded outputs to the vector of exogenous signals. The structure specified PSS in the form of PID has also been taken in the design based on $H_{∞}$ norm minimization using GA and PSO. The linear matrix inequality (LMI) technique has also been used to solve the $H_{∞}$ control problem to get PSS. Investigations have shown that PSS design using PSO and GA are superior to classical lead-lag and PID structures, and also to PSS designed using LMI technique.
Starting Page	66
Ending Page	71
File Size	317061
Page Count	6
File Format	PDF
e-ISBN	9781479972470
DOI	10.1109/RDCAPE.2015.7281371
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-03-12
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Damping Robust control Automation Dynamic system Rotors Rotor speed and angle deviation Power system stability Oscillations Robustness Generators H∞ norm Oscillators
Content Type	Text
Resource Type	Article

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