A Novel Unified Approach for the Analysis and Design of Wind-Driven SEIGs Using Nested GAs

Abstract

A unified procedure for the design optimization and performance predetermination of wind-driven three-phase Self-Excited Induction Generators (SEIGs) has been attempted using Genetic Algorithm (GA) twice, in two nested loops. The outer loop is meant for the calculation of the values of turns per coil of the stator winding and the excitation capacitor which would meet the specified performance constraints of the generator. The inner loop applies the GA tool for the first time, for a straightforward predetermination of these performance quantities. Further, additional schemes such as, switching of the stator connection from delta to star, at times of lower wind speed and short shunt arrangement suitable for lagging power loads, have also been included. Method of estimating the ranges for the variables, required to be given as input data into each of these two loops for the application of GA, has been explained. Experimental results obtained on a test machine and performance values predicted employing Genetic Algorithm, have been shown to agree closely, validating the comprehensive methodology proposed for the first time for the economical design of SEIGs for wind-driven applications.

References

Bansal

R. C.

Bhatti

T. S.

Kothari

D. P.

, Bibliography on the application of induction generators in nonconventional energy systems, IEEE Trans. on Energy Conversion, September 2003, Vol. 18, No. 3, pp. 433–439.

Singh

G. K.

, Self-excited induction generator research—a survey, Electric Power Systems Research, 2004, Vol. 69, pp. 107–114.

Bansal

R. C.

, Three-Phase Self-Excited Induction Generators: An Overview, IEEE Trans. on Energy Conversion, June 2005, Vol. 20, no. 2, pp. 292–299.

Ion Boldea , The electric Generators Handbook Vol.2 Variable Speed Generators, CRC Press, Taylor & Francis Group, 2006.

Godoy Simoes

Felix Farret

, Renewable Energy Systems Design and analysis with Induction Generators, CRC Press, 2004.

Kumaresan

, Analysis and control of three-phase self-excited induction generators supplying single-phase AC and DC loads, IEE Proc. Electric Power Application, May 2005, Vol. 152, no. 3, pp. 739–747.

Dheeraj Joshi Sandhu

K.S.

Soni

M.K.

, Performance Analysis of Three-Phase Self-Excited Induction Generator Using Genetic Algorithm, Electric Power Components and Systems, 2006, No. 34, pp. 461–470.

Kumaresan

Subbiah

, Innovative reactive power saving in wind-driven grid-connected induction generators using a delta-star stator winding: Part I, Performance analysis of the delta-star generator and test results, Wind Engineering, 2003, Vol.27, No. 2, pp. 107–120.

Kumaresan

Subbiah

, Innovative reactive power saving in wind-driven grid-connected induction generators using a delta-star stator winding: Part II, Estimation of annual Wh and VARh of the delta-star generator and comparison with alternative schemes, Wind Engineering, 2003, Vol. 27, no. 3, pp. 195–204.

10.

Kumaresan

Subbiah

, Analysis and control of Wind-Driven Self-Excited Induction Generators with Load Matching, Proc. of the Eleventh National Power Systems Conference NPSC - 2000, December 2000, Vol. 1, IISc, Bangalore, pp. 21–26.

11.

Kumaresan

, Analysis, Design and Testing of Electrical Generators and Power Electronic Controllers for Certain Renewable Energy Applications, Ph.D. thesis submitted to the Bharathidasan University, Tiruchirappalli, India, August 2004.

12.

Kumaresan

Selvan

M.P.

Subbiah

, Design Optimization and Speed Extension of Wind-driven Self-excited Induction Generators – A New Approach, Electric Power Components & Systems, February 2004, Taylor & Francies, Vol. 32, No. 2, pp. 215–228.

13.

Say

M.G.

, Alternating current machines, The English Language Book Society and Pitman Publishing, Edinburgh, UK, 1976.

14.

Lahcene Quazene George McPherson , Analysis of the isolated induction generator, IEEE Trans. on Power Apparatus and Systems, August 1983, Vol. PAS-102, No. 8, pp. 2793–2798.

15.

Tandon

A.K.

Murthy

S.S.

Berg

G.J.

, Steady-state analysis of capacitor self-excited induction generator, IEEE Trans. on Power Apparatus and Systems, March 1984, Vol. PAS-103, No. 3, pp. 612–618.

16.

Al Jabri

A.K.

Alolah

A.I.

, Capacitance requirement for isolated self-excited induction generator, IEE Proc. Pt. B, May 1990, Vol. 137, No. 3, pp 154–159.

17.

Chan

T.F.

, Steady-state analysis of self-excited induction generators, IEEE Trans. on Energy conversion, June 1994, Vol. 9, no. 2, pp. 288–294.

18.

Li Wang Jian-Yi Su , Effects of long-shunt and short connections on voltage variations of a self-excited induction generator, IEEE Trans. on Energy conversion, December 1997, Vol. 12, no. 4, pp. 368–374.

19.

Ammasaigounden

Subbiah

Krishnamurthy

M.R.

, Wind-driven self-excited pole-changing induction generators, IEE Proc. Pt. B, September 1986, Vol. 133, no. 5, pp. 315–321.

20.

Singh

Shridhar

Jha

C.S.

, Improvements in the performance of Self-Excited Induction Generator through series compensation, IEE Proc – Gener. Transm. Distrib, November 1999, Vol. 146, no. 6, pp. 602–608.

21.

Anna mani Mooley

D.A.

, Wind Energy Data for India, Allied Publishers private limited, 1983, India.

22.

Bandler

John W.

Christakis Charalambous , Practical least pth optimization of Networks, IEEE Trans. on Microwave theory and techniques, December 1972, Vol. MTT-20, No. 12, pp. 834–840.