本論文為針對永磁同步馬達無位置感測元件驅動器設計與實現，以馬達反電動勢為基礎，建立估測電路取代位置感測器以提供馬達轉子位置和轉速資訊。馬達於許多實際應用的場合中，其內部參數如黏滯係數、轉動慣量等並非定值，並且也要考量負載以及轉速的變化，因此本文結合了模糊控制理論，藉以改善固定增益參數之控制器因為上述情況所帶來的不準確性。 本論文以dsPIC30F4011微控制器為整個系統的主要核心，並與智慧型功率模組為基礎實現全數位化之無感測永磁同步馬達驅動系統，能達到簡化電路，並且降低整體系統的開發成本。 In this thesis, design and implement for sensorless sureface-mounted permanent magnet synchronous motor (SPMSM) drive are discussed. Based on the back electromotive force in motors, an estimation circuit is established to replace hall effect elements which provide the information of the rotor position and the rotor speed. In many practical applications, the motor parameters like damping coefficient and moment of inertia are time-varying. Also, the motor speed and load variance must be considered. Therefore, combining fuzzy theory is proposed in this thesis to improve the inaccuracy of PID controller because aforementioned conditions. This thesis used a full-digital drive based on intelligent power module and digital signal processor. This drive not only efficiently simplifies the circuit, but also reduces the cost of the system.
