Stabilization Control in Low-speed Region in Speed Sensorless Vector Control

无速度传感器矢量控制中低速区的稳定控制

• 批准号: 07650350
• 负责人: KOGA Kunio
• 金额: $ 1.41万
• 依托单位: Hiroshima National College of Maritime Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650350/
• 关键词: Induction motor's magnetic flux; Magnetic field sensor; Speed sensorless vector control; Stabilization control; Higher harmonic magnetic flux

In the speed sensorless vector control of induction motor, an unstable phenomenon is inevitably generated in a low-speed region. The purpose of this research is to conquer this unstable phenomenon fundamentally by using the magnetic flux sensor.First of all, we experimented with a general-purpose induction motor (2.2kw, 4poles) to clarify the characteristic of the yoke magnetic flux of the induction motor. The hole for the magnetic flux detection of 5mm in the diameter 15 mm in depth was made in the yoke of this induction motor. The magnetic flux in this hole was detected by zero magnetic field type magnetic flux sensor.The following thing was clarified. First of all, when the position of the magnetic flux sensor was changed, the magnitude of magnetic flux in the yoke was measured. As a result, it has been understood that the magnitude of the magnetic flux attenuates from the stator slot of the induction motors in the hyperbola function while parting. Moreover, some third harmonic remains in the magnetic flux detection of the induction motors. However, it has been clarified that the magnetic flux detection of the induction motors is very possible by the method of this research.We proposed a new control method, which is a speed sensorless vector control with the magnetic flux sensors mentioned above. The effectiveness of this control method was verified by computer simulation. As a result, the unstable phenomenon in a low-speed area was overcome by this control method.

在感应电机无速度传感器矢量控制中，在低速区域不可避免地会产生不稳定现象。本研究的目的就是利用磁通传感器从根本上克服这种不稳定现象。首先，我们用通用感应电机（2.2kw，4极）进行实验，以明确感应电机磁轭磁通的特性。在该感应电动机的磁轭上开有直径5mm、深度15mm的用于磁通检测的孔。该孔内的磁通量由零磁场型磁通量传感器检测。明确了以下内容。首先，当改变磁通量传感器的位置时，测量磁轭中的磁通量的大小。其结果可知，磁通的大小在分离时以双曲线函数从感应电动机的定子槽开始衰减。此外，在感应电动机的磁通量检测中还残留有一些三次谐波。然而，已经明确的是，通过本研究的方法，感应电机的磁通量检测是非常可能的。我们提出了一种新的控制方法，即采用上述磁通量传感器的无速度传感器矢量控制。通过计算机仿真验证了该控制方法的有效性。该控制方法克服了低速区域不稳定的现象。

项目成果

Kunio Koga, Ryuzo Ueda and Toshikatsu Sonoda: "Magnetic Flux Detection of Induction Motors with the Suppressed Third Harmonic" 1996 National Convention Record I.E.E.Japan. No.906. 4-298-4-299 (1996)

Kunio Koga、Ryuzo Ueda 和 Toshikatsu Sonoda：“抑制三次谐波的感应电机的磁通检测”1996 年全国大会记录 I.E.E 日本。

Kunio Koga, Ryuzo Ueda and Toshikatsu Sonoda: "Detection of Magnetic Flux in Induction Motors with Magnetic Field Sensor Installed in Yoke" The 4th Power Electronics Seminar Record Nation Wide Technical Colleges. No.4. 41-44 (1995)

Kunio Koga、Ryuzo Ueda 和 Toshikatsu Sonoda：“利用安装在磁轭中的磁场传感器检测感应电机中的磁通量”第四届电力电子研讨会记录全国技术学院。

Kunio Koga, Ryuzo Ueda and Toshikatsu Sonoda: "Characteristics of Speed Sensorless Vector Control with the Magnetic Flux Sensor" 1997 National Convention Record I.E.E.Japan Industry Application Society. No.127. 85-88 (1997)

Kunio Koga、Ryuzo Ueda 和 Toshikatsu Sonoda：“使用磁通传感器的无速度传感器矢量控制的特性”1997 年全国大会记录 I.E.E 日本工业应用协会。

Kunio Koga, Ryuzo Ueda and Toshikatsu Sonoda: "On the detection of the Stationary Magnetic Flux of the Induction Motors" 1998 National Convention Record I.E.E.Japan. No.1098. 5-32-5-33 (1997)

Kunio Koga、Ryuzo Ueda 和 Toshikatsu Sonoda：“关于感应电机静止磁通的检测”1998 年全国大会记录 I.E.E.Japan。

古賀國夫: "誘導電動機の静止磁束の検出について" 平成9年電気学会全国大会講演論文集.

Kunio Koga：“感应电机中静磁通量的检测”1997 年日本电气工程师学会全国会议论文集。