Development of Control Chip for Position-Sensorless IPM motor Drive systems

无位置传感器IPM电机驱动系统控制芯片的开发

• 批准号: 14550448
• 负责人: OGASAWARA Satoshi
• 金额: $ 2.24万
• 依托单位: Utsunomiya University (2003)Okayama University (2002)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14550448/
• 关键词: IPM motor; position-sensorless drive; control chip; FPGA; VHDL; DSP core; magnetic saliency; current ripple; PMモータ; EPGA

This research aims to develop a control chip, which can control a position-sensorless interior permanent magnet synchronous motor (IPM motor) drive system not only by means of one chip control but also fully digital control. The control chip provides the sensorless position estimation based on magnetic saliency, which has proposed by the head investigator. This control chip makes it possible to form a position control system or a speed control system just connecting the power cables of an IPM motor to inverter terminals. Concerning research of 2002, the investigator design and produce a main circuit to drive an IPM motor of 3.7kW and an interface board which is connected with an evaluation board carrying an FPGA including logic circuits corresponding 200,000 gates. Concerning research of 2003, a ripple detection circuit and a PWM generation circuit are developed by describing it in the hardware description language VHDL, and a control software for a DSP core which is implemented in the FPGA is also developed. Experiments using the developed drive system illustrates that position estimation circuit has a good position estimation accuracy within ±1.1 degree (electrical angle) in average value with 0.5 degree dispersion. Moreover, it is shown that the developed control chip providing the position estimation makes it possible to realize a fast position control of 20 rad/s and an electrical lock of the motor shaft (servo lock) without any shaft-mounted sensor. A developing controlled chip is applicable to other IPM motors without any parameter adjustment, and it expects miniaturization of the control circuit and prevention of incorrect operation caused by electrical noises. The investigators hope that the control chip is put into practical use.

本课题旨在开发一种控制芯片，使其既能单芯片控制又能实现全数字化控制，从而实现对无位置传感器内部永磁同步电机驱动系统的控制。控制芯片提供了由首席研究员提出的基于磁显著性的无传感器位置估计。该控制芯片使得只需将IPM电机的电源线连接到逆变器端子上，就可以形成位置控制系统或速度控制系统。在2002年的研究中，研究者设计并制作了一个驱动3.7kW IPM电机的主电路和一个接口板，该接口板与带有FPGA的评估板连接，其中包含对应的20万个门的逻辑电路。结合2003年的研究，用硬件描述语言VHDL对纹波检测电路和PWM产生电路进行了描述，并开发了在FPGA上实现的DSP核心控制软件。利用所开发的驱动系统进行的实验表明，位置估计电路的位置估计精度在±1.1度（电角）平均值内，误差为0.5度。此外，所开发的提供位置估计的控制芯片可以实现20 rad/s的快速位置控制和电机轴的电锁（伺服锁），而无需任何轴上安装传感器。一种正在开发的控制芯片，可适用于其他IPM电机，无需任何参数调整，并期望控制电路小型化，防止电气噪声引起的不正确运行。研究人员希望这种控制芯片能投入实际应用。

项目成果

Satoshi Ogasawara, Hiroyuki Kurokawa, Hirofumi Akagi: "A Position-Sensorless IPM Motor Drive System Using a Detection Circuit of Current Variations"IEEJ Transactions on Industry Applications. Vol.123-D, No.6. 667-674 (2003)

Satoshi Ogasawara、Hiroyuki Kurokawa、Hirofumi Akagi：“使用电流变化检测电路的无位置传感器 IPM 电机驱动系统”IEEJ 行业应用交易。

小笠原悟司, 黒川博之, 赤木泰文: "新しい電流リプル検出回路を適用した位置センサレスIPMモータ駆動システム"電気学会論文誌D(産業応用部門誌). 123巻・6号. 667-674 (2003)

Satoshi Ogasawara、Hiroyuki Kurokawa、Yasufumi Akagi：“应用新型电流纹波检测电路的位置无传感器 IPM 电机驱动系统”IEEJ Transactions D（工业应用分部期刊），第 123 卷，第 667-674 期（2003 年）。