There may be a singularity in the solution
in [Matlab]
|
From: prasad on 8 Feb 2005 00:24 "State 1 of block 'loopmech/Subsystem3/Zero-Pole2' computed at time 1e-006 with step size 1e-006 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)" This is the problem i am getting when a signal (speed signal of a motor,or motor current signal) flows through a PI controller, and mostly this problem is because of Integrator of PI controller. but if i pass any random signal(from random signal block) thru the same PI controller it works properly simulation parameters are fixed step length,1e-5 step length, runge kutta solver, single tasking mode(ofcourse i checked with variable step length also) Does any body know solution for this regards prasad
|
Pages: 1 Prev: crashed !!!when I test the "Magic Square "Example in combuilder Next: help with fminsearch |