simulink ode error message
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i am applying pwm on dc/dc converter I connected between simulink element and semipower element bu voltage controlled source ,and select ode45 with variable step but it gives bad response so i used ode fixed step but it gave this error message
" Derivative input 2 of 'chee_pv/boost converter1/powergui/EquivalentModel1/State-Space' at time 6.750000000000001 is Inf or NaN. Stopping simulation. There may be a singularity in the solution. If not, try reducing the step size (either by reducing the fixed step size or by tightening the error tolerances)."
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Sulaymon Eshkabilov
2019-5-5
0 个投票
Hi,
Maybe you can try to adjust the relative and absolute error tolerances via solver options or simset('reltol', value, 'abstol', value). It is a bit difficult to suggest any idea without seeing your model itself though.
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2019-5-5
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