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Study of High-Performance Vector Controls for AC Servo Motors Taking Core-Losses into Account

考虑铁损的交流伺服电机高性能矢量控制研究

基本信息

批准号：
10650439
负责人：
SHINNAKA Shinji
金额：
$ 2.05万
依托单位：
Kanagawa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650439/
关键词：
AC servo motor vector control core loss induction motor synchronous motor model sensorless encoderless エンユーグレスエンコーダレスサーボモータエンコーダ

项目摘要

The following results are obtained through the study.1) A unified mathematical model for AC motors is newly established, which succeeds in modeling eddy current and hysteresis losses of stator separately and simultaneously.2) Mathematical models for stator flux of induction and synchronous motors are also established. It is shown that concrete models for induction or synchronous motor can be easily obtained by applying the stator flux models to the unified model.3) It is shown that the above results defined on two dimensional orthogonal coordinates can be extended to the U, V, W three phase coordinates.4) As well known, block diagrams are useful for overall comprehension. Simple and clear block diagrams of AC motors are newly established, which use vector signals rather than scalar signals. The block diagrams succeed in expressing the core loss phenomena caused by eddy current or/and hysteresis loss and have a high generality.5) A new identification method is established, which can identify equivalent core-loss resistances on the unified mathematical model corresponding to eddy current or/and hysteresis loss. The usefulness of the identification method is verified through experiments using three motors.6) A vector control method taking core-losses into account is established, which can be applied to synchronous motor as well as induction motor.7) A minimum loss strategy associated with vector control taking core-losses into account is established for induction motor.8) The above results are applied to sensorless induction motor drive especially for electric vehicle and its usefulness is confirmed.

通过研究取得了以下成果：1）新建立了交流电机的统一数学模型，成功地对定子涡流和磁滞损耗进行了单独、同时建模。2）建立了感应电机和同步电机定子磁通的数学模型。结果表明，通过将定子磁链模型应用到统一模型中，可以很容易地获得感应或同步电机的具体模型。3）结果表明，上述在二维正交坐标上定义的结果可以推广到U、V、W三相坐标。4）众所周知，框图有助于整体理解。新建立了简单清晰的交流电机框图，该框图使用矢量信号而不是标量信号。该框图成功地表达了涡流或/和磁滞损耗引起的磁芯损耗现象，具有较高的通用性。5)建立了一种新的识别方法，可以在涡流或/和磁滞损耗对应的统一数学模型上识别等效磁芯损耗电阻。通过三台电机的实验验证了该辨识方法的有效性。6)建立了一种考虑铁损的矢量控制方法，该方法既适用于同步电机，也适用于感应电机。7)针对感应电机建立了考虑铁损的矢量控制最小损耗策略。8)将上述结果应用于无传感器感应电机特别是电动汽车驱动中，证实了其实用性。