Transient analysis of self-excited induction generator with electronic load controller (ELC) supplying static and dynamic loads

This paper presents a transient analysis of self-excited induction generator (SEIG) with electronic load controller (ELC) used in stand alone micro hydel power generation employing uncontrolled turbines. In view of the need to feed both 3-phase induction motor and static loads from such systems, the transient behaviour due to switching in of such loads is of interest and is carried out here. Combining the modelling of prime mover, SEIG, ELC and load has developed a composite mathematical model of the total system. Simulated results are compared with the experimental ones, obtained on a developed laboratory prototype of a SEIG-ELC system by starting a motor and switching in a resistive load. For the induction motor, a star/delta starter is used to avoid inrush current. Harmonic analysis is carried out to assess total harmonic distortion (THD) in the voltage and current to assess the power quality.

[1]  Bhim Singh,et al.  Transient Analysis of Self-Excited Induction Generator Supplying Dynamic Load , 1999 .

[2]  Li Wang,et al.  Long-shunt and short-shunt connections on dynamic performance of a SEIG feeding an induction motor load , 2000 .

[3]  Danny Sutanto,et al.  Steady-state and transient analysis of self-excited induction generators , 1989 .

[4]  P. Vas,et al.  The analysis of a saturated self-excited asynchronous generator , 1991 .

[5]  Li Wang,et al.  Dynamic analyses of parallel operated self-excited induction generators feeding an induction motor load , 1999 .

[6]  N.P.A. Smith.  Induction generators for stand-alone micro-hydro systems , 1996, Proceedings of International Conference on Power Electronics, Drives and Energy Systems for Industrial Growth.

[7]  O. P. Malik,et al.  Analysis of self-excited induction generators , 1982 .

[8]  R. Bonert,et al.  Stand alone induction generator with terminal impedance controller and no turbine controls , 1990 .

[9]  S. S. Murthy,et al.  Experience in the development of microhydel grid independent power generation scheme using induction generators for Indian conditions , 1998, Proceedings of IEEE TENCON '98. IEEE Region 10 International Conference on Global Connectivity in Energy, Computer, Communication and Control (Cat. No.98CH36229).

[10]  R. Bonert,et al.  Self-excited induction generator with excellent voltage and frequency control , 1998 .

[11]  B. P. Singh,et al.  Analysis of self excited induction generator feeding induction motor , 1994 .