STEADY STATE ANALYSIS OF INDUCTION GENERATOR INFINITE BUS SYSTEMS

R.G. Kavasseri

References

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  12. [12] E.S. Abdin & W. Xu, Control design and dynamic performanceanalysis of a wind turbine-induction generator unit, IEEETrans. on Energy Conversion, 15(1), 2000, 91–96.Appendix A: Induction Generator DataThe machine constants To, x and xo are defined as follows:Table 5Electrical Data for Induction Generators in P.U.(On Machine Base)Parameter Case 1 Case 2 Case 3xr 0.143 0.0639 0.135xs 0.0087 0.1878 1.19rr 0.019 0.00612 0.0339rs 0.0059 0.00571 0.0059xM 4.76 2.78 4.161To=xr + xmωsrr,xo = xr + xm,x = xs + xrxmxr + xm.The system parameters are assumed to be Eb = 1.0p.u., re = 0.Appendix B: Coefficients and ParametersIn (5), the parameters are described as follows:a11 = re + rs − x Ycre − Ycrsxea12 = xe + x +Ycrsre − Ycx xeb1= Erre − Emxe + Ebrs,b2= Emre + Erxe + EbxIn (7–9) the parameters are described as follows:a2 = xe + x −Ycxex ,b1 =a2 − xea2x ,xa = xo − xb2 = αo(1 + xab1), αo =1To, a3 =αoxaEba2,a4 =Eb2Ha2In Proposition 3, the coefficients η1, . . . , η7 are definedas follows:η1 = K1c4b2,η2 = −2abc4K1 + 4c2x b2K1η3 = K1a2c4+ 4x 2b2K1 + 2c2x 2b2K1− 8abc2x K1 − K2b2c2η4 = 4c2a2x K1 + 4x 3b2K1 − 4abc2x 2K1− 8x 2ab + 2abc2K2η5 = 4x 2a2K1 + 2c2a2x 2K1 − 8abx 3K1 + x 4b2K1− K2a2c2− b2x 2K2 + 4abcx K2η6 = −2abx 4K1 − 2cx a2K2 + 2abx 2K2η7 = K1x 4a2− K2x 2a266where:a = αo(1 + xa), b = αoYcxe, c = 1 − Ycx ,K1 = 4P2mω2s , K2 = 4PmωsαoxaE2b doi:10.1109/60.849122

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