01/23/2016 08:39 PM, Dave Cole rašė: > Interesting. > > Are the two sine waves being fed to the drive 120 degrees out of phase > or something similar? > > So does the sine wave amplitude ramp up according the motor speed? > > Dave
Yes, 120 degrees. In spin / velocity mode amplitude I_out is controlled by PID and frequency calculated by a formula (created by myself): f_out = dipoles * (vel_fb + vel_fb_abs * slip * K_slip * I_out / I_max + I_out / I_max * T_comp); param rw float slip = 0.025 "Frequency slip ratio"; param rw float K-slip = 2.5 "Maximum slip coefficient"; param rw float T-comp = 5 "Torque to frequency compensation coefficient"; It could be more simple, but this worked and was flexible enough while tuning in my case. ------------------------------------------------------------------------------ Site24x7 APM Insight: Get Deep Visibility into Application Performance APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month Monitor end-to-end web transactions and take corrective actions now Troubleshoot faster and improve end-user experience. Signup Now! http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
