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    • 9. 发明专利
    • Brushless motor and control method therefor
    • 无刷电动机及其控制方法
    • JP2012222881A
    • 2012-11-12
    • JP2011083738
    • 2011-04-05
    • Ihi Aerospace Co LtdSinfonia Technology Co Ltdシンフォニアテクノロジー株式会社株式会社Ihiエアロスペース
    • OYORI HITOSHISAITO HIROSHI
    • H02P6/08
    • H02P29/0243H02P21/00H02P21/50H02P29/032
    • PROBLEM TO BE SOLVED: To provide a brushless motor in which current loss can be compensated by simple circuitry, even if one phase of a polyphase winding is damaged due to partial failure of an inverter, or one phase of a polyphase winding fails.SOLUTION: The brushless motor comprises a neutral line (8) connecting the neutral (6a) of a power supply and the neutral (2a) of a star-connection in the winding, failure detection means (9) for detecting failure of any phase of a multiple-phase winding, a faulty phase determination means for determining whether there is a failure or not for each phase from the failure detection information input from a processing unit when a failure is detected in any phase by the failure detection means, and a phase control means for changing the phase of each phase current so that the current vector of a composite current of the X-axis and Y-axis quadrature components of each phase current, for which a determined is made that there is no failure by the faulty phase determination means, has a substantially circular trajectory.
    • 要解决的问题:为了提供一种无刷电动机,其中可以通过简单的电路补偿电流损耗,即使多相绕组的一相由于逆变器的部分故障而损坏,或者多相绕组的一相失效 。 解决方案:无刷电动机包括连接电源的中线(6a)和绕组中的星形连接的中性线(2a)的中性线(8),故障检测装置(9),用于检测故障 多相绕组的任何相位,故障相位确定装置,用于当由故障检测装置在任何阶段检测到故障时,从处理单元输入的故障检测信息中确定每个相位是否有故障, 以及相位控制装置,用于改变每相电流的相位,使得确定每个相电流的X轴和Y轴正交分量的复合电流的电流矢量不被故障通过 故障相位确定装置具有基本圆形的轨迹。 版权所有(C)2013,JPO&INPIT