Search International and National Patent Collections
|1. (WO2018203387) ELECTRIC MOTOR CONTROL APPARATUS|
|Applicants:||MITSUBISHI ELECTRIC CORPORATION
|Title:||ELECTRIC MOTOR CONTROL APPARATUS|
During a time period from start of activation of a permanent magnet synchronous electric motor (4) to completion of the activation, an activation control unit (17) calculates an α-axis induced voltage (Eα) and a β-axis induced voltage (Eβ) on the basis of an α-axis current (Iα) and a β-axis current (Iβ) obtained by a triaxial/biaxial conversion unit (12) converting currents (Iu, Iv, and Iw) of three-phase winding wires (4u, 4v, 4w), and switches an α-axis command value (Iα*) and a β-axis command value (Iβ*) according to the α-axis induced voltage (Eα) and the β-axis induced voltage (Eβ).