公开(公告)号：US20100090640A1

公开(公告)日：2010-04-15

申请号：US12579857

申请日：2009-10-15

申请人： Sari MAEKAWA ,  Kazunobu NAGAI

发明人： Sari MAEKAWA ,  Kazunobu NAGAI

IPC分类号： H02P25/28 ,  H02K21/12

CPC分类号： H02K1/276 ,  H02K21/04 ,  H02P21/0089 ,  H02P21/06

摘要： A motor controller controlling a permanent magnet motor including a rotor provided with a plurality of low coercivity permanent magnets having a coercivity low enough to allow modification in amount of magnetization, the motor controller including a position detector including one or more position sensors to detect a rotational position of the rotor; an inverter circuit connected between a direct current voltage supply source and windings of the permanent magnet motor and configured by a plurality of semiconductor switching elements of multiple phases connected thereto; and a magnetization controller that magnetizes the plurality of low coercivity permanent magnets constituting the rotor by energizing the windings of the permanent magnet motor through the inverter circuit such that all of the low coercivity permanent magnets are magnetized to a uniform level of magnetization by energizing the windings twice at same timings specified based on a sensor signal outputted by the position sensor.

摘要翻译： 一种控制永磁电动机的电动机控制器，包括具有多个低矫顽力永磁体的转子，所述低矫顽力永磁体的矫顽磁力足够低以允许改变磁化强度，所述电动机控制器包括位置检测器，该位置检测器包括一个或多个位置传感器， 转子位置; 连接在直流电压源和永磁电动机的绕组之间的逆变器电路，由与其连接的多个相位的多个半导体开关元件构成; 以及磁化控制器，其通过使逆变器电路对永磁电动机的绕组进行励磁来磁化构成转子的多个低矫顽力永久磁铁，使得通过使绕组通电使得所有低矫顽力永磁体被磁化至均匀的磁化水平 基于由位置传感器输出的传感器信号指定的相同定时两次。

公开(公告)号：US20100052599A1

公开(公告)日：2010-03-04

申请号：US12547033

申请日：2009-08-25

申请人： Kazunobu NAGAI ,  Takeshi Shibayama ,  Sari Maekawa

发明人： Kazunobu NAGAI ,  Takeshi Shibayama ,  Sari Maekawa

IPC分类号： H02P21/00 ,  H02P27/08

CPC分类号： H02P1/426 ,  H02P21/28 ,  H02P27/12

摘要： An inverter device driving an induction motor including main and auxiliary windings both having different winding specifications includes a three-arm inverter circuit having phase output terminals connected to the main winding, the auxiliary winding and a neutral winding of the induction motor respectively and converting a DC power supply to two-phase substantially sinusoidal PWM voltage, a current detector detecting currents of the respective main and auxiliary windings from a DC power supply current, a vector control computing unit obtaining balanced inductance values and resistance values from inductance values and resistance values of the respective main and auxiliary windings, determining a two-phase voltage to be supplied to the induction motor by vector control computing based on the balanced inductance values and resistance values, and a PWM signal forming unit forming a PWM signal controlling the inverter circuit according to the two-phase voltage.

摘要翻译： 驱动包括具有不同绕组规格的主绕组和辅助绕组的感应电动机的逆变器装置包括三臂逆变器电路，其具有分别连接到主绕组，辅助绕组和感应电动机的中性绕组的相位输出端子，并将DC 电源到两相基本正弦PWM电压，电流检测器从直流电源电流检测相应的主辅助绕组的电流;矢量控制计算单元，从电感值和电阻值获得平衡电感值和电阻值 相应的主和辅绕组，通过基于平衡电感值和电阻值的矢量控制计算来确定要提供给感应电动机的两相电压;以及PWM信号形成单元，其形成控制逆变器电路的PWM信号，根据 两相电压。