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A method for detecting the presence of loss optimum current should value requirements of current components of a separately excited synchronous motor
A method for detecting the presence of loss optimum current should value requirements of current components of a separately excited synchronous motor
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机译：一种用于检测损耗最佳电流的方法，应满足单独励磁同步电动机的电流分量要求
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摘要
The present invention relates to a method for determining current should value requirements of current components (id, Iq and if) in a coordinate system is transformed stator currents, the flow by means of stator windings of a separately excited synchronous motor, and a in the coordinate system transformed rotor current which, by means of a rotor winding of the separately excited synchronous motor flows, said method comprising the steps of:A certain preset by the synchronous motor to be desired torque md.sub.des;Determining the current should value specifications (id, Iq and if) for the desired torque md.sub.des is in an armature adjusting region of the synchronous motor on the basis of a first control model, which takes into account is arranged, which is suitable for the current should value specifications of derivatives of the coordinate system transformed stator inductors (ld and lq) and a coupling inductance (lmd), the a mutual magnetic influence of the rotor winding and of the stator windings according to the current components resu andDetermining the current should value specifications (id, Iq and if) for the desired torque md.sub.des is in a field weakening range of the synchronous motor on the basis of a second control model, in which a stator resistance rs taken into account of the stator windings.
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机译：本发明涉及一种用于确定坐标中当前分量（i d ，I q 和i f ）的电流应值要求的方法。该系统包括变换后的定子电流，通过单独励磁的同步电动机的定子绕组的流动以及在坐标系中变换的转子电流，该转子电流通过单独励磁的同步电动机的转子绕组流动，所述方法包括以下步骤： of：由同步电动机预先设定的某个特定值，以达到所需的扭矩md.sub.des;确定电流应符合规格（i d ，I q 和i f ）的期望转矩md.des。在第一控制模型的基础上位于同步电动机的电枢调节区域中，该模型考虑了布置，该模型适合于当前的电流值规格坐标系变换的定子电感（l d 和l q ）的导数和一个系数ng电感（l md ），结果是转子绕组和定子绕组根据电流分量的互磁影响;确定所需转矩md.sub.des的当前值应为规格（i d ，I q 和i f ）基于第二种控制模型的同步电动机的弱化范围，其中考虑了定子绕组的定子电阻r s 。
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