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专利名称：Motor control device and motor system发明人：石野 聖人申请号：JP2017199350申请日：20171013公开号：JP2019075868A公开日：20190516
专利附图：
摘要：A motor control device that controls a motor by vector control is improved inidentification accuracy of a motor constant. A parameter identifier IDTFa sets an offsetvoltage Vd * _of of a DC component as a d-axis target voltage Vd * [1], and detects a d-axis current Id flowing along with it as an offset current Iof. Further, the parameter
identifier IDTFa sets a voltage obtained by superimposing a predetermined identificationsignal of an AC component on Vd * [1] as the d-axis target voltage Vd * [2], and the d-axiscurrent Id flowing accordingly To detect Then, the parameter identifier IDTFa receives avoltage Vd1 obtained by subtracting Vd * [1] from Vd * [2] and a current Id1 obtained bysubtracting the offset current Iof from the d-axis current Id. The motor constants areidentified using a predetermined identification algorithm. [Selected figure] Figure 1
申请人：ルネサスエレクトロニクス株式会社
地址：東京都江東区豊洲三丁目２番２４号
国籍：JP
代理人：特許業務法人筒井国際特許事務所
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