Wound-rotor induction generator system for random wave input power

  • Published : 2009.03.30

Abstract

In this paper, the two-axis theory is adopted to analyze the secondary excited induction generator applied to random wave input generation system. The analysis by the two-axis theory helps to know the transmitted power of the induction machine. The electric variables, like as primary and secondary currents, voltages, and electric output power, were able to express as equations. These equations are help to simulate the generation system numerical model and to know the transient state of the system. As it is preferred to stabilize the output voltage and frequency in the constant level, microcomputer controlled VSI connected to the secondary windings supplies the secondary current with slip frequency. For testing the appropriateness of this method, the input torque simulator in the laboratory to drive the secondary excited results show the advantage of secondary excited induction generator system for the random input wave generation system.

Keywords

References

  1. Yokomizo, "Analysis of sea wave generation system of 'Kaimei' type", Jamstec Experimental report No.10, 1983, pp.97-127
  2. Hotta, "The generation performances of sea wave generation system 'Kaimei'", JSCE symposium, Tokyo, 1987
  3. Nagata, "Construction of Offshore Floating Wave Power Device 'Mighty Whale"', IHI Engineering Review Vol.33, 2000, No.1 24-29
  4. Washio, "Full-scale performance tests on Tandom Wells turbine", 1st Symposium on wave energy utilization in Japan, Tokyo, 1984, pp.191-199
  5. Ohgata, "The present and the future of the sea wave generation", Energy and resources, No.132, 3. 2002, pp.50-54
  6. B.S. Hyun et al., "A Study on the Performance of the Ring-type Impulse Turbine for Wave Energy Conversion", The Korea Committee for Ocean Resources and Engineering, Journal of Ocean Engineering and Technology, 1225-0767, Vol.20, No.1, 2006, pp.20-25
  7. Jin Ha Kim et al., "A Study on Motion and Wave Drift Force of a BBDB Type OWC Wave Energy Device", The Korea Committee for Ocean Resources and Engineering, Journal of Ocean Engineering and Technology,1225-0767, Vo1. 20, No.2, 2006, pp.22-28
  8. B.S. Hyun, et al., "Analysis of Impulse Turbine for Wave Energy Conversion Using CFD Method", The Korea Committee for Ocean Resources and Engineering, Journal of Ocean Engineering and Technology,1225-0767, Vol. 18, No. 5,2004, pp.1-6
  9. J.G. Hwang, "A study on Structure Design of Speed increaser Mechanism for Wave-Force Generator", Korean Society of Precision Engineering, Proceedings of the Korean Society of Precision Engineering Conference, 2004, pp.1266-1269
  10. J.H. Gyeong, "Numerical Analysis on Wave Energy Absorption of OWC-type Wave Power Generation", The Korea Committee for Ocean Resources and Engineering, Journal of Ocean Engineering and Technology,1225-0767, Vol. 20, No.4, 2006, pp.64-69
  11. M. Kim, "A control of wound-rotor induction generator for random wave input generation s ystem", International Journal of Kimics, Vol. 5, No.3, 2007, p 223-228