Device for desensitized regulation of the stator voltage of an a

Details Device for desensitized regulation of the stator voltage of an a Device for desensitized regulation of the stator voltage of an a

1995-11-29

1997-02-25

Krishnan, Aditya

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

H02K 910, G05B 1302

Patent

active

056062486

ABSTRACT:
The invention relates to a device for regulating the stator voltage of an alternator, which includes several feedback loops (52, 54, 56, 66) each associated with a gain (K.sub..OMEGA., K.sub.V, K.sub.P, K.sub.I) acting on state variables (.OMEGA., V.sub.S, P) measured at the output of the system as well as on the integral of the setpoint error. The gains (K.sub..OMEGA., K.sub.V, K.sub.P, K.sub.I) are obtained by minimizing the mathematical expectation of a quadratic criterion which is dependent upon a state vector, upon the control variable (u) as well as upon the sensitivities of these variables, when the alternator operating parameters vary about its normal operating point.

REFERENCES:
patent: 5373227 (1994-12-01), Keeth
patent: 5548205 (1996-08-01), Monticelli
European Transactions on Electrical Power Engineering, vol. 3, No. 6, Nov. 1993, pp. 443-451, D. P. Papadopoulos et al "Robust Excitation Controller for Synchronous Generators Using Output Feedback".
IEEE Transactions on Energy Conversion, vol. 5, No. 4, Dec. 1990, New York, USA, pp. 673-678, Chengxiong Mao et al "An Adaptive Generator Excitation Controller Based on Linear Optimal Control".
IEE Proceedings-D, vol. 138, No. 4, Jul. 1991, Stevenage, Herts, G. B., P. Wozniak et al "Feedback Stabilization of Synchronous Generator by Extended Linearisation".

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