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Debuging continuous states in a discrete simulation

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Stephen
Stephen 2011-9-6
My simulation fails because The "VariableStepDiscrete" solver cannot be used to simulate block diagram 'Model_Name because it contains continuous states.
How do I troubleshoot? The Sample Time Display doesn't work because the failure occurs before the Sample Time Display is built.
Thanks.

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回答（2 个）

Kaustubha Govind
Kaustubha Govind 2011-9-6
The error occurs because you have continuous states in your model (for example, blocks from the Continuous sub-library in the Simulink library may have continuous states - like the integrator block), not necessarily continuous sample-times. You should switch to a solver that can solve continuous states (see Solvers), like ode45.
Stephen
Stephen 2011-9-6
ode45 worked -- thanks.

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