A class of hybrid systems (HS) with models unresolved with respect to the derivative is considered. Algorithm of numerical analysis of HS modes is given. Theorem about the choice of the integration step considering the event function dynamic has been formulated and proved. Algorithm of the accurate event detection with implicit continuous behavior models is designed. Testing of the proposed algorithms in the ISMA instrumental environment is performed. Example of specifi cation and analysis of
electric power systems models is given.
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