結合高頻注入與延伸電動勢之永磁同步馬達無位置感測控制

Integration of High Frequency Injection and Extended-EMF Position Sensorless Controls for the Permanent-Magnet Synchronous Motor

盧建嘉(JIAN-JIA LU)

指導教授 ： 張淵智

國立中正大學/工學院/電機工程學系/碩士(2016年)

摘要

本論文針對永磁同步馬達(Permanent Magnet Synchronous Motor)設計無位置感測控制(Position Sensorless Control)。系統架構包含永磁同步馬達、三相三線式全橋變頻器、輔助電源與微控制器周邊電路等。本文結合高頻注入法與延伸電動勢實現無位置感測控制。驅動方法以適用於零轉速啟動與低轉速的高頻注入法，待馬達啟動至穩定轉速後切換至延伸電動勢估測器將馬達帶到高轉速，再搭配以空間向量脈波寬度調變(Space Vector Pulse Width Modulation, SVPWM)為基礎的分切合整電流控制法，並透過微控制器來實現前述的控制方法。

關鍵字

永磁同步馬達 ； 無位置感測控制 ； 分切合整電流控制

並列摘要

This thesis is referring to design the position sensorless control for a permanent magnet synchronous motor (PMSM). The system structure includes a PMSM, a three-phase three-wire inverter, the auxiliary circuits and the peripheral circuits of the micro-controller. This research combines high frequency injection and extended-EMF to achieve position sensorless control. High frequency injection is adopted to estimate the rotor speed and the rotor position. It is suitable for the motor at black start and low speed. When the motor is driven to steady speed, the driver will be switched to the extended-EMF estimator to drive motor at high speed. The space vector pulse width modulation (SVPWM) is implemented in this thesis for division-summation (D-Σ) current control. All the controls are accomplished via the micro-controller.

並列關鍵字

PMSM ； position sensorless control ； diversion-summation current control

參考文獻

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