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Nonlinear co-ordinated control of excitation and governor for hydraulic power plants

Nonlinear co-ordinated control of excitation and governor for hydraulic power plants

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A nonlinear decentralised excitation and governor co-ordinated controller design for hydraulic power plants is proposed to enhance power system transient stability. First, the excitation system and hydro-governor system, considering non-elastic water hammer effect, is modelled as a whole. Then, based on differential geometric theory, the original nonlinear system for multi-machines is exactly linearised by appropriate co-ordinate transformation. After that, linear optimisation control is applied such that the final optimised nonlinear excitation and governor co-ordinated control law can be obtained. To demonstrate the efficiency and analyse the co-ordination mechanism of the proposed controller, simulations on an OMIB system and the EPRI-36 system are performed. Comparison with classical excitation and governor control, nonlinear optimal excitation control, nonlinear robust governor control, the suggested decentralised and co-ordinated control can achieve considerably better performance in improving the transient stability of power systems.

References

    1. 1)
      • M. Djukanovic , M. Novicevic , D. Dobrijevic , B. Babic , D.J. Sobajic , Y.-H. Pao . Neural-net based coordinated stabilizing control for the exciter and governor loops of low head hydropower plants. IEEE Tran. Energy Convers. , 760 - 767
    2. 2)
    3. 3)
    4. 4)
    5. 5)
      • Okou, F.A., Akhrif, O., Dessaint, L.A.: `A robust nonlinear multivariable controller for multimachine power systems', Proc. 2003 American Control Conference, p. 2294–2299.
    6. 6)
      • Smaili, Y.A., Alouani, A.T.: `An H∞ governor exciter controller design for a power system', First IEEE Conference on Control Applications, 1992, p. 770–775.
    7. 7)
    8. 8)
    9. 9)
    10. 10)
      • Lu, Q.: `SDM hybrid control approach for nonlinear systems and application to power systems', Proc. 2002 Int. Conf. on Power System Technology, p. 18–23.
    11. 11)
      • Lu, Q., Sun, C.X., Sun, Y.Z.: `Nonlinear governor control for hydroturbine generator sets', Proc. 1993 IEEE Region 10 Conf. on Computer Communication, Control and Power Engineering, p. 38–42.
    12. 12)
      • Q. Lu , Y.Z. Sun , S.W. Mei . (2000) Nonlinear control systems and power system dynamics.
    13. 13)
      • PSASP - Power system analysis software package, China Electric Power Research Institute, People's Republic of China.
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