具參數自動量測之高速主軸感應馬達向量控制

The Vector-Controlled Motor Drives with Automatic Parameter Identification for High Speed Induction Spindle Motor

蔡文格(Wen-Ko Tsai)

指導教授 ： 黃明熙

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00333

摘要

近年來由於消費性電子產品朝小型化發展，使具數值控制及高速主軸馬達工具機之需求逐漸增加。穩定性及快速的加減速能力為高速主軸馬達之關鍵特性，可滿足更高的加工品質及縮短加工時間。
本文研究感應馬達之高速驅動控制，以間接轉子磁場導向控制作為定轉矩區的控制核心，並加入磁束向量控制以降低高速弱磁下的電感飽和效應。另外，提出q軸電流命令計算滑差頻率及增大磁化電流方法，分別縮短主軸馬達於高速弱磁區的加速及減速時間。為有效提高主軸馬達於高速弱磁控制之精確度，分析與及於所提系統實現額定滑差估算法來自動量測馬達參數。
最後，使用具有高速浮點運算能力的微處理器-Renesas RX62T之馬達驅動器實現所提控制策略並以5.5kW/12000rpm之感應主軸馬達作為載具，由無載加速/減速及額定負載擾動等項目進行測試，以驗證所提控制方法之有效性。

關鍵字

間接轉子磁場導向 ； 感應馬達 ； 參數自動量測 ； 弱磁調控 ； 磁束向量控制

並列摘要

The demand of machine tools with computer numerical control and high speed spindle motor is increasing to meet the trends in miniaturization for consumer electronics products. The characteristics of stability, rapid acceleration and deceleration are the key requirements for spindle motor to reduce operating time and improve mechanical processing quality.
This thesis is focused on developing high speed induction motor drive. The indirect rotor field oriented control is used at constant torque area and flux control has been added to reduce the flux saturation effect of induction motor in high speed area.
In addition, a slip calculation based on q-axis current command and an increasing the magnetizing current methods are proposed to shorten acceleration and deceleration time for spindle motor in high speed and field weakening region, respectively. In order to improve the control accuracy of spindle motor in high speed field-weakening region, the rated slip estimation method is analyzed and implemented in the proposed motor drive to measure the rotor time constant automatically.
Finally, the proposed control methodologies are implemented in a MCU (Renesas RX62T)-based motor drive. The tested items, including no-load acceleration/deceleration and rated-load disturbance, are carried out and tested on a 5.5 kW/12000 rpm induction motor driven by the motor drives to verify the effectiveness of the proposed methods.

並列關鍵字

Indirect Field Rotor Oriented Control ； Auto Parameter Identification ； Field Weakening Control ； Flux Vector Control

參考文獻

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