I have a SISO system of active magnetic bearing, i/p of which is current and output is the combine displacement in x and y. the normal equation for force of both axis is like this : F1=m*d^2(y)/dt^2+mg for y axis and F2=m*d^2(x)/dt^2 for x axis. Now i want to control the combined displacement that is root(x^2+y^2) with single current input. So how can i write the combine force F, so that i can control ?
Holger Neumann
Since you have two degrees of freedom (x and y), you can‘t control the active radial magnetic bearing by just one current input. You must control both degrees of freedom, which means in cartesian coordinates x and y or in polar-coordinates radius and angle.
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