Bandwidth-divided harmonic adjustment for improved acoustic behavior of electric drive systems

• Main Authors: YOO ANDREW, HE SONG, PEDDI VISHAL C, GAJAS BRIAN S
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2022
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

A method for controlling operation of a rotating electric machine includes: receiving a commanded torque and a rotational speed of the electric machine via a bandwidth division harmonic compensation regulator (HCR) of a controller; and calculating a dq harmonic compensation current and a dq harmonic compensation voltage for one or more predetermined harmonic orders using the commanded torque and the rotational speed via the HCR in response to the enable condition. The harmonic compensation current and voltage cancel torque and current fluctuations in one or more predetermined harmonic orders. The method may include injecting an acoustic tone at a predetermined harmonic order. The method also includes adding the dq harmonic compensation current and voltage to the dq current and voltage command, respectively, to produce a regulated dq current and voltage command. The regulated dq current and voltage command is then used to control the electric machine. 用于控制旋转电机的操作的方法包括：经由控制器的带宽划分谐波补偿调节器（HCR）来接收电机的指令扭矩和旋转速度；以及经由