Neural network-based voltage regulator for an isolated asynchronous generator supplying three-phase four-wire loads

This paper deals with a neural network-based solid state voltage controller for an isolated asynchronous generator (IAG) driven by constant speed prime mover like diesel engine, bio-gas or gasoline engine and supplying three-phase four-wire loads. The proposed control scheme uses an indirect current control and a fast adaptive linear element (adaline) based neural network reference current extractor, which extracts the real positive sequence current component without any phase shift. The neutral current of the source is also compensated by using three single-phase bridge configuration of IGBT (insulated gate bipolar junction transistor) based voltage source converter (VSC) along-with single-phase transformer having self-supported dc bus. The proposed controller provides the functions as a voltage regulator, a harmonic eliminator, a neutral current compensator, and a load balancer. The proposed isolated electrical system with its controller is modeled and simulated in MATLAB along with Simulink and PSB (Power System Block set) toolboxes. The simulated results are presented to demonstrate the capability of an isolated asynchronous generating system driven by a constant speed prime mover for feeding three-phase four-wire loads.

[1]  Gerhard Fischer,et al.  Manual on Induction Motors Used as Generators , 1992 .

[2]  Bernard Widrow,et al.  30 years of adaptive neural networks: perceptron, Madaline, and backpropagation , 1990, Proc. IEEE.

[3]  S. N. Mahato,et al.  Transient performance of a single-phase self-regulated self-excited induction generator using a three-phase machine , 2007 .

[4]  L. L. Lai,et al.  A Novel Single-Phase Self-Regulated Self-Excited Induction Generator Using a Three-Phase Machine , 2001, IEEE Power Engineering Review.

[5]  Kamal Al-Haddad,et al.  A review of active filters for power quality improvement , 1999, IEEE Trans. Ind. Electron..

[6]  Bhim Singh,et al.  STATCOM-Based Voltage Regulator for Self-Excited Induction Generator Feeding Nonlinear Loads , 2006, IEEE Transactions on Industrial Electronics.

[7]  Suttichai Premrudeepreechacharn,et al.  Active power filter for three-phase four-wire electric systems using neural networks , 2002 .

[8]  Tarek Ahmed,et al.  Static VAR compensator-based voltage control implementation of single-phase self-excited induction generator , 2005 .

[9]  N. Kumaresan.  Analysis and control of three-phase self-excited induction generators supplying single-phase AC and DC loads , 2005 .

[10]  Bhim Singh,et al.  STATCOM based voltage regulator for self-excited induction generator feeding non-linear loads , 2003, IECON'03. 29th Annual Conference of the IEEE Industrial Electronics Society (IEEE Cat. No.03CH37468).

[11]  Girish Kumar Singh,et al.  Self-excited induction generator research—a survey , 2004 .

[12]  B. Singh,et al.  Analysis and design of STATCOM-based voltage regulator for self-excited induction generators , 2004, IEEE Transactions on Energy Conversion.

[13]  Dan Levy,et al.  Stand alone induction generators , 1997 .

[14]  Tore Undeland,et al.  Power Electronics: Converters, Applications and Design , 1989 .

[15]  Li Wang,et al.  Analysis of voltage control for a self-excited induction generator using a current-controlled voltage source inverter (CC-VSI) , 2001 .

[16]  Bhim Singh,et al.  Dynamic behavior of a three-phase self-excited induction generator for single-phase power generation , 1998 .

[17]  R.C. Bansal,et al.  Three-phase self-excited induction generators: an overview , 2005, IEEE Transactions on Energy Conversion.

[18]  A. Elmitwally,et al.  Neural network controlled three-phase four-wire shunt active power filter , 2000 .

[19]  Mototaka Sone,et al.  Harmonic detection by using neural network , 1995, Proceedings of ICNN'95 - International Conference on Neural Networks.