A sliding-mode voltage regulator for salient pole synchronous generator

Abstract This paper presents a sliding-mode control strategy for voltage regulation of synchronous generators connected to the power grid that combines sliding mode and linear control laws. This hybrid control scheme contributes preventing system instability, by suppressing the low-frequency oscillations arising from power grid fault disturbances. In addition, this strategy does not require the estimation of system parameters. This control strategy was designed to be introduced easily in a conventional automatic voltage regulator (AVR) algorithm. Experimental results obtained with a laboratory test set-up, consisting of the synchronous generator connected to the grid and subjected to severe power transients, was employed to validate the proposed control approach. Comparisons with a conventional as well as with two hybrid control schemes demonstrate the advantages of the proposed control strategy.

[1]  F. M. Hughes,et al.  A predictive integrated voltage regulator and power system stabilizer , 1995 .

[2]  Hardiansyah,et al.  A robust H ¿ power system stabilizer design using reduced-order models , 2006 .

[3]  Vadim I. Utkin,et al.  Discontinuous controller for power systems: sliding-mode block control approach , 2004, IEEE Transactions on Industrial Electronics.

[4]  Leonid M. Fridman,et al.  Analysis of Chattering in Systems With Second-Order Sliding Modes , 2007, IEEE Transactions on Automatic Control.

[5]  Vadim I. Utkin,et al.  Sliding mode control in electromechanical systems , 1999 .

[6]  Mohsen Farahani.  A Multi-Objective Power System Stabilizer , 2013, IEEE Transactions on Power Systems.

[7]  Charles Concordia,et al.  Concepts of Synchronous Machine Stability as Affected by Excitation Control , 1969 .

[8]  Asif Sabanoviç,et al.  Sliding-Mode Control for High-Precision Motion of a Piezostage , 2007, IEEE Transactions on Industrial Electronics.

[9]  R.C. Schaefer,et al.  Understanding Power-System Stability , 2005, IEEE Transactions on Industry Applications.

[10]  Leonid M. Fridman,et al.  High-Order Block Sliding-Mode Controller for a Synchronous Generator With an Exciter System , 2011, IEEE Transactions on Industrial Electronics.

[11]  Takashi Hiyama,et al.  Integrated fuzzy logic generator controller for stability enhancement , 1997 .

[12]  R.C. Schaefer,et al.  Tuning a PID controller for a digital excitation control system , 2005, IEEE Transactions on Industry Applications.

[13]  Jiaqi Liang,et al.  Intelligent Local Area Signals Based Damping of Power System Oscillations Using Virtual Generators and Approximate Dynamic Programming , 2013, IEEE Transactions on Smart Grid.

[14]  N. Pariz,et al.  Position control of induction and DC servomotors: a novel adaptive fuzzy PI sliding mode control , 2006, 2006 IEEE Power Engineering Society General Meeting.

[15]  M. Russo,et al.  Adaptive Voltage Regulator Design for Synchronous Generator , 2008, IEEE Transactions on Energy Conversion.

[16]  O. P. Malik,et al.  An adaptive generator excitation controller based on linear optimal control , 1990 .

[17]  O. P. Malik,et al.  An adaptive power system stabilizer based on recurrent neural networks , 1997 .

[18]  Ghazanfar Shahgholian,et al.  An integrated approach for optimal placement and tuning of power system stabilizer in multi-machine systems , 2014 .

[19]  R. L. de Araújo Ribeiro,et al.  A Robust Adaptive Control Strategy of Active Power Filters for Power-Factor Correction, Harmonic Compensation, and Balancing of Nonlinear Loads , 2012, IEEE Transactions on Power Electronics.

[20]  F. M. Hughes,et al.  Predictive analogue generator excitation controller , 1997 .

[21]  Liu Hsu,et al.  Variable structure model-reference adaptive control (VS-MRAC) using only input and output measurements: the general case , 1990 .

[22]  E. Swidenbank,et al.  A self-tuning automatic voltage regulator designed for an industrial environment , 1996 .

[23]  Shaoru Zhang,et al.  An Improved Simple Adaptive Control Applied to Power System Stabilizer , 2009, IEEE Transactions on Power Electronics.

[24]  Hany M. Hasanien,et al.  Design Optimization of PID Controller in Automatic Voltage Regulator System Using Taguchi Combined Genetic Algorithm Method , 2013, IEEE Systems Journal.

[25]  S. Tnani,et al.  Monovariable and Multivariable Voltage Regulator Design for a Synchronous Generator Modeled With Fixed and Variable Loads , 2011, IEEE Transactions on Energy Conversion.

[26]  Alexander G. Loukianov,et al.  Multimachine Power-System Control: Integral-SM Approach , 2009, IEEE Transactions on Industrial Electronics.

[27]  Janusz Bialek,et al.  Excitation control system for use with synchronous generators , 1998 .

[28]  Shaoru Zhang,et al.  An Improved Simple Adaptive Control Applied to Power System Stabilizer , 2009 .

[29]  F. M. Hughes,et al.  Block diagram transfer function model of a generator including damper windings , 1994 .

[30]  J. W. Finch,et al.  Adaptive control of turbo generator excitation , 1996 .

[31]  M. Saidy.  A unified approach to voltage regulator and power system stabiliser design based on predictive control in analogue form , 1997 .