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A problem of synchronizing two nonlinear multidimensional systems with unknown parameters is considered. Two general procedures for adaptive synchronization law design based on speed-gradient method are proposed. Conditions ensuring the synchronization are given. The second procedure is based on passification of error system (making it passive by feedback). The results are illustrated by examples: synchronizing a pair of Chua's circuits and a pair of circuits with tunnel diodes. Computer simulation results confirming theoretical analysis are given.

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The asynchronized turbogenerator T3FAU 160 was tested at heat electric power station 21 in the static and dynamic modes of operation; test results are presented. The standby modes of operation, i.e., with excitation in one winding and without excitation (asynchronous mode), are examined. Fig. 3. Switch from normal mode ASG to standby mode AG (basic mode P = 58 MW; Q = 17 MV A): (1) U g ; (2) P g ; (3) I fd ; (4) Q g ; (5) I fq ; (6) Δ.

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