Developments of stable controller in induction type bearingless drives under transient conditions.

瞬态条件下感应型无轴承驱动器稳定控制器的开发。

• 批准号: 11650298
• 负责人: CHIBA Akira
• 金额: $ 2.3万
• 依托单位: Science university of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11650298/
• 关键词: bearingless motor; magnetic bearing; indution motor; magnetic suspension; 磁気力支持; 高速モータ

In recent years, developments of bearingless drives are undergoing several parts of the world. The bearingless drives are the electric motors or generators with self-magnetic suspensions. Thus, there is increasing expectation of wide range of applications such as vacuum, low or high temperature conditions, harsh environments, long life and highly reliable machines. In fact, extensive developments can be seen in artificial heart blood pumps, canned pumps in chemical plants, semiconductor processes, bio reactors in bio engineering, telescope positioning in space satellites.In induction motors, used in wide ranges of today's motor drive applications, prototype bearingless motors are built by a Japanese company and Switzerland groups with manufactures and university. The investigators have been done notable research in induction type bearingless motors. A control method to suspend a rotation shaft at rated load torque has been made obvious. However, there exist a possible problem of touch … More down of the shaft during fast change in torque load, high acceleration and decelerations.In this research, a short time unstable operation of magnetic suspension is seen only at overloaded and transient conditions. During the acceleration tests, two flux signals have been compared. One is search coil flux linkage, which is obtained through integrators connected to search coils. The other is flux reference signal generated by slip-frequency type vector controllers in an induction motor speed feedback loop. It is found that phase angle of these two flux signals are not corresponding in a period of transient conditions. In addition, phase margin of the radial positioning loops is significantly decreased if the phase angle is not corresponding because there exist radial force interference in two-perpendicular axesTo solve the problem, a new orientation method to the air-gap flux is proposed. Successful suspension during high acceleration is found. It is also shown that the optimal field orientation varies in accordance with rotor temperature. Less

近年来，无轴承驱动器的发展正在世界各地进行，无轴承驱动器是具有自磁悬浮的电动机或发电机，因此，人们对真空、低温或高温等广泛应用的期望越来越高。事实上，人工心脏血泵、化工厂中的罐装泵、半导体工艺、生物工程中的生物反应器、空间卫星中的望远镜定位等领域都得到了广泛的发展。 ， 用过的在当今广泛的电机驱动应用中，无轴承电机原型是由一家日本公司和瑞士集团与制造商和大学共同制造的。研究人员对感应式无轴承电机在额定负载下悬挂旋转轴的控制方法进行了引人注目的研究。扭矩已经很明显了。然而，在扭矩负载快速变化、高加速和减速过程中，可能存在轴接触的问题。在本研究中，磁悬浮仅在过载时出现短时不稳定运行。和瞬态条件。在加速测试中，比较了两个磁通信号，一个是搜索线圈磁链，它是通过连接到搜索线圈的积分器获得的，另一个是由感应电机速度反馈环路中的滑频型矢量控制器生成的磁通参考信号。发现在瞬态情况下，这两个磁通信号的相位角不对应，此外，如果相位角不对应，则由于两个信号之间存在径向力干扰，径向定位环路的相位裕度显着减小。 -垂直为了解决这个问题，提出了一种新的气隙磁通定向方法。结果还表明，最佳磁场定向随转子温度的变化而变化。

项目成果

Takahiro Suzuki, Akira Chiba, etal.: "An Airgap Flux Oriented Vector Controller for Stable Magnetic Suspension during High Torque Acceleration in Bearingless Induction Motors"IEEE, Industry Applications Society Annual Meeting Conference Record. 1543-1550

Takahiro Suzuki、Akira Chiba 等人：“An Airgap Flux Oriented Vector Controller for Stable Magnetic Suspension during High Torque Acceleration in Bearing Induction Motors”IEEE，工业应用协会年会记录。

鈴木尚礼,千葉明 他: "誘導機形ベアリングレスモータにおけるギャップ磁束一定制御の有効性"電気学会半導体電力変換研究会SPC-99-60. 55-60 (1999)

Naoyoshi Suzuki、Akira Chiba 等人：“感应电机无轴承电机中恒定间隙磁通控制的有效性”日本电气工程师学会半导体功率转换研究组 SPC-99-60 (1999)。

鈴木尚礼,千葉明 他: "ベクトル制御誘導機形ベアリングレスモータにおけるギャップ磁束ベクトルの位相変化に関する一考察"電気学会産業応用部門全国大会. vol.3,no.389. 593-594 (1999)

Naoyoshi Suzuki、Akira Chiba 等：“矢量控制感应电机无轴承电机中间隙磁通矢量的相位变化的研究”日本电气工程师学会工业应用部门全国会议卷。 3，第 593-594 号（1999 年）。

Takahiro Suzuki,Akira Chiba, et al: "An Airgap Flux Oriented Vector Controller for Stable Magnetic Suspension during High Torque Acceleration in Bearingless Induction Motors"IEEE, Industry Applications Society Annual Meeting Conference Record. 1543-1550 (

Takahiro Suzuki、Akira Chiba 等人：“An Airgap Flux Oriented Vector Controller for Stable Magnetic Suspension during High Torque Acceleration in Bearingless Induction Motors”IEEE，工业应用协会年会记录。