公开(公告)号：US20160094167A1

公开(公告)日：2016-03-31

申请号：US14862139

申请日：2015-09-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Minki KIM ,  Jung Hee SUK ,  Yil Suk YANG ,  Jimin OH ,  Sewan HEO

IPC: H02P6/18 ,  H02P27/08

CPC classification number: H02P6/182

Abstract: Provided is a BrushLess Direct Current (BLDC) motor system including a motor driving circuit configured to control a pulse-width-modulation (PWM) inverter in a first operation mode or a second operation mode according to a control signal, and output a switching signal according to each operation mode, the PWM inverter configured to receive the switching signal to output first three-phase voltages having a first frequency in the first operation mode, and output second three-phase voltages having a second frequency in the second operation mode, a sensorless BLDC motor configured not to operate in the first operation mode by operating based on three-phase voltages having a frequency in a different band from the first frequency, and operate in the second mode by operating based on three-phase voltages having a frequency in an identical band to the second frequency, and a parameter detecting circuit configured to calculate parameter information on the sensorless BLDC motor in the first operation mode by using sensing voltages sensed in the PWM inverter.

Abstract translation: 本发明提供一种无刷直流电动机系统，包括：电动机驱动电路，被配置为根据控制信号在第一运行模式或第二运行模式中控制脉宽调制（PWM）逆变器，并输出开关信号 根据各操作模式，所述PWM逆变器被配置为接收所述切换信号，以在所述第一操作模式下输出具有第一频率的第一三相电压，并且在所述第二操作模式中输出具有第二频率的第二三相电压， 无传感器BLDC电动机通过基于具有与第一频率不同的频带的频率的三相电压进行操作而被配置为不在第一操作模式下操作，并且通过基于具有频率的三相电压 与第二频率相同的频带;以及参数检测电路，被配置为在第一操作中计算无传感器BLDC电动机上的参数信息 通过使用在PWM逆变器中感测到的感测电压。