以微控器為基礎之無轉軸偵測永磁同步馬達驅動器的研製

Design and Implementation for Sensorless Permanent Magnet Synchronous Motor Drive Based on Microcontroller Unit

梁朝涵(Chau-Han Liang)

指導教授 ： 賴炎生

國立臺北科技大學/電資學院/電機工程系所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00109

摘要

本文是以微控器為基礎，製作無轉軸位置偵測器之永磁馬達驅動器，其中轉軸位置係由馬達定子電流和電壓估算出定子磁通而得。本文馬達控制方式為向量控制，驅動器的PWM切換頻率為10 kHz，電流取樣頻率為10 kHz，速度計算頻率為333 Hz。
本文內容首先為分析馬達的數學模型，並依據馬達參數設計合適之控制器，接下來為推導定子磁通估算式，取代轉軸位置偵測器，最後為系統模擬以及實驗結果。由實驗結果得知確實可藉由估算定子磁通取代轉子位置偵測器，且系統之動態及暫態響應皆能符合設計之要求，驗證所研製之無轉軸偵測永磁同步馬達驅動器的可行性。

關鍵字

永磁同步馬達 ； 無轉軸偵測 ； 磁通估測

並列摘要

This objective of this thesis is to design and implement a sensorless PMSM drive. To reach the sensorless control, the stator flux which is used to sensorless control is estimated by stator voltage and current. The control algorithm of PMSM is vector control, the switching frequency of designed drive is 10 kHz. Moreover, the sampling frequency of current and speed loop are 10 kHz and 333 Hz, respectively.
In this thesis, the mathematical model of PMSM is analyzed first, and using the parameters of PMSM design the controller. Then, derive the expression of rotor flux to estimated rotor position substitute rotor position sensor. Finally, the simulation and experimental results are showed. Simulation and experimental results show the dynamic and steady state response according to designed specifications, and confirm the sensorless PMSM drive is workable on microcontroller unit.

並列關鍵字

Permanent Magnet Synchronous Motor ； Sensorless ； Flux Estimation

參考文獻

[17]李毓彥，以微控器研製永磁同步馬達的向量控制驅動器，碩士學位論文，國立台北科技大學電機所，民國九十八年。

[3]Y. S. Lai and Y. K. Lin, “Novel back-EMF detection technique of brushless DC motor drives for wide range control without using current and position sensors,” IEEE Trans. on Power Electron., vol. 23, no. 2, pp. 934-940, Mar. 2008.

[4]J. Shao, “An improved microcontroller-based sensorless brushless DC (BLDC) motor drive for automotive applications,” IEEE Trans. on Ind. Appl., vol. 42, no. 5, pp. 1216-1221, Sep./Oct. 2006.

[5]C. H. Chen and M. Y. Cheng, “A new cost effective sensorless commutation method for brushless DC motors without phase shift circuit and neutral voltage,” IEEE Trans. on Power Electron., vol. 22, no. 2, pp. 644-653, Mar. 2007.

[6]H. Kim, M. C. Harke, and R. D. Lorenz, “Sensorless control of interior permanent -magnet machine drives with zero-phase lag position estimation,” IEEE Trans. on Ind. Appl., vol. 39, no. 6, pp. 1726-1733, Nov./Dec. 2003.