ESTIMATION METHOD
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专利名称：ESTIMATION METHOD 发明人：KJAER, P2004 000374 申请日：2004 0315 公开号：WO04 /082105P 1 公开日：2004 0923
摘要：A field current estimator for estimating the field current in a brushless excited synchronous apparatus comprising an exciter having a stator part and an rotor part comprising a rectifier, and a machine having a stator part and a rotor part and a field winding. The field current estimator comprises: a first calculating unit, calculating the voltages (Vra,Vrb,Vrc) of the exciter rotor part based on measured values of the current (is) and voltage (us) of the exciter stator part, by means of a mathematical model of the exciter, a second calculating unit, calculating the voltage (vff) of the field winding based on the calculated voltage (Vra,Vrb,Vrc) of the exciter rotor part, by means of a mathematical model of the rectifier, and a third calculating unit, calculating the field current (iff) of the field winding based on the calculated voltage (vff) of the field winding, by means of a mathematical model of the field winding.
申请人：KJAER, Philip,KJELLQVIST, Tommy 地址：CH,DK,SE 国籍：CH,DK,SE 代理机构：REYIER, Ann-Mari 更多信息请下载全文后查看
专利名称：ESTIMATION METHOD 发明人：KJAER, P2004 000374 申请日：2004 0315 公开号：WO04 /082105P 1 公开日：2004 0923
摘要：A field current estimator for estimating the field current in a brushless excited synchronous apparatus comprising an exciter having a stator part and an rotor part comprising a rectifier, and a machine having a stator part and a rotor part and a field winding. The field current estimator comprises: a first calculating unit, calculating the voltages (Vra,Vrb,Vrc) of the exciter rotor part based on measured values of the current (is) and voltage (us) of the exciter stator part, by means of a mathematical model of the exciter, a second calculating unit, calculating the voltage (vff) of the field winding based on the calculated voltage (Vra,Vrb,Vrc) of the exciter rotor part, by means of a mathematical model of the rectifier, and a third calculating unit, calculating the field current (iff) of the field winding based on the calculated voltage (vff) of the field winding, by means of a mathematical model of the field winding.
申请人：KJAER, Philip,KJELLQVIST, Tommy 地址：CH,DK,SE 国籍：CH,DK,SE 代理机构：REYIER, Ann-Mari 更多信息请下载全文后查看