2results about How to "Speed coordination" patented technology

The application discloses a dynamic slip vector control method for eccentric large-inertia load of an asynchronous motor, and comprises the following steps: an operation vector equation of the asynchronous motor is as follows: a voltage steady-state equation: S1, Usd=Rs*isd-omega1*(Ls*Lr-Lm2) / Lr*isq; S2, Usq=Rs*isq+omega1*(Ls*Lr-Lm2) / Lr*isd+omega1*Lm / Lr*psi r, wherein, Usd and Usq are d-axis and q-axis voltages of a stator, isd and isq are d-axis and q-axis target currents of the stator, Rs and Ls are a stator resistance and inductance, omega1 is a synchronous frequency of the stator, psi r is a total rotor flux, Lr is a rotor inductance, and Lm is mutual inductance; and the application patent of the variable-slip vector control method for the eccentric large-inertia load of the asynchronous motor can effectively solve the problem of the coordination relationship among the gravity eccentric load acceleration / deceleration starting, constant-speed energy saving and constant-speed speed stability through the dynamic slip compensation control.

A winding device comprises a frame body, the frame body is provided with a clutch, the power input end of the clutch is connected with a motor, and the power output end of the clutch is connected with a winding roller; the brake is connected with the placing roller; the first control unit is in communication connection with the clutch; the second control unit is in communication connection with the brake; and the frequency conversion unit is in communication connection with the motor. The first control unit, the second control unit and the frequency conversion unit are matched with the placing roller and the winding roller, so that the rotating speed coordination of the placing roller and the winding roller is realized, the tension is kept constant, and the winding effect is better.