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Multivariable adaptive control of AC-DC systems

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2 Author(s)
To, K.W.V. ; Dept. of Electr. Eng., Hong Kong Polytech., Kowloon, Hong Kong ; David, A.K.

The conventional design of HVAC-DC system controllers is based on model linearisation at operating points, hence transient performance cannot be guaranteed. A minimum variance adaptive control scheme is developed for improving the generator performance and hence power system stability. The controller supplies the excitation system and both terminals of a DC link with control signals derived from a control strategy which minimises the variance between system outputs and outputs of a linear predictor. Results obtained from a detailed nonlinear simulation of a two-machine AC-DC system are presented

Published in:

Generation, Transmission and Distribution, IEE Proceedings-  (Volume:141 ,  Issue: 6 )