|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||318/800 ; 318/803 ; 318/806 ; 318/722|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 79 인용 특허 : 30|
A motor control apparatus and method is disclosed for controlling a multiphase AC motor by controlling electrical quantities such as voltage or current applied to the stator of the motor. The apparatus includes a motor command unit for defining a reference signal indicative of a desired motor parameter such as torque, speed, or position, a DC voltage link, a controller, a line-side converter including active switches in a bridge configuration for controlling the bidirectional flow of electrical power between the DC voltage link and a source of AC power, ...
A method for controlling stator currents in a multiphase AC motor rotating at variable speeds to obtain torque, speed, or position control of the motor, wherein the stator currents are switched by an self-commutated active rectifier that establishes a rotating flux field in the rotor of the motor, the method comprising the steps of: defining a reference signal indicative of a desired motor torque, speed, or position; determining a desired direct axis current representing rotor flux in a direction aligned with the rotor flux field in a rotating field coor...