1results 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.