永磁同步馬達驅動器之弱磁控制

Flux Weakening Control of Permanent Magnet Synchronous Motor Drives

何昇翰(Sheng-Han He)

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(2014年)

摘要

本論文主要目的為研究永磁同步馬達驅動器之弱磁控制技術，首先探討永磁同步馬達數學模型，並使用所量測之永磁同步馬達參數去設計電流與速度控制器。將空間向量調變技術結合變頻器PWM控制，來調整有效切換時間，並利用調變指數去判斷操作區域，適時修正電壓命令大小及角度，達到有效的擴展直流鏈電壓之利用率之目的。

本文使用德州儀器公司生產之數位訊號處理器TMS320F28035為控制核心，並採用Matlab/Simulink為模擬平台，驗證本論文所提及方法的正確性。實驗所採用之內崁式永磁同步馬達規格為額定轉速3000 rpm、最高轉速4500 rpm、PWM切換頻率設定為10kHz。由實驗及模擬結果驗證其控制方法之可行性。

關鍵字

變頻器 ； 內崁式永磁同步馬達 ； 弱磁控制 ； 空間向量調變

並列摘要

The main purpose of this thesis is to study the flux weakening control technique of permanent magnet synchronous motor drives. First, the mathematical model of PMSM is investigated. The motor parameters are used to design the current and speed controllers. To drive the inverter, Space Vector Modulation (SVM) technique is adopted to adjust the active switching time. Moreover, to extend the DC link voltage utilization, the modulation index is used to modify the magnitude or/and angle of voltage vector.
In this thesis, the control techniques are verified through the simulation software, SIMULINK, and implemented using DSP (TMS320F28035). The specifications of the experimental interior permanent magnet synchronous motor drives include: rated speed 3000 rpm, maximum speed 4500rpm and 10 kHz of PWM switching frequency. From the simulation and experiment results, the feasibility of the presented techniques is confirmed.

並列關鍵字

Inverter ； Interior Permanent Magnet Synchronous Motor ； Flux Weakening ； Space Vector Modulation

參考文獻

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