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公开(公告)号：US09312796B2
公开(公告)日：2016-04-12
申请号：US14119518
申请日：2012-05-23
申请人： Andreas Donner , Timo Gurzawski , Csaba Györi , Bogdan Sofronescu
发明人： Andreas Donner , Timo Gurzawski , Csaba Györi , Bogdan Sofronescu
CPC分类号： H02P6/12 , B62D5/0484 , B62D5/0487 , H02H7/1225 , H02P6/085 , H02P27/06 , H02P29/032
摘要： The invention relates to a method for operating a brushless electric motor, the windings of which are controlled by an inverter using six switches, wherein the inverter comprises three outputs, which are associated with the windings of the electric motor, and wherein a respective power semiconductor switch is arranged between the output of the inverter and the windings, and wherein a detection unit for detecting defective switches, a unit for measuring the voltage at the outputs of the inverter, and a microcontroller for controlling switches are provided. The invention further relates to a device operating a brushless electric motor. In order not to damage the power semiconductor switches, according to the invention of the inverter is switched off by the microcontroller after a defective switch has been detected, such that no additional power is introduced in the windings (U, V, W) of the electric motor and the power semiconductor switches are opened in a predetermined motor angle position (φU, φv, φw). For said purpose, the motor angle positions (φu, φv, φw) are associated with a respective winding (U, V, W) and the power semiconductor switches thereof and are selected such that the associated power semiconductor switches are not damaged during opening.
摘要翻译： 本发明涉及一种用于操作无刷电动机的方法，该电动机的绕组由使用六个开关的逆变器控制，其中逆变器包括与电动机的绕组相关联的三个输出，并且其中相应的功率半导体 开关配置在逆变器的输出端与绕组之间，其特征在于，提供用于检测有缺陷的开关的检测单元，用于测量逆变器的输出端的电压的单元和用于控制开关的微控制器。 本发明还涉及一种操作无刷电动机的装置。 为了不损坏功率半导体开关，根据本发明，在检测到有缺陷的开关之后，由微控制器关闭逆变器，使得在绕组（U，V，W）中不会引入额外的功率 电动机和功率半导体开关以预定的电动机角度位置（＆amp; U，＆phgr; v，＆phgr; w）打开。 为了所述目的，电动机角度位置（＆phgr，u，＆phgr; v，＆phgr; w）与相应的绕组（U，V，W）及其功率半导体开关相关联，并且被选择为使得相关联的功率半导体开关 打开时不会损坏
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