本論文採數位控制的方式實現以碳化矽模組作為功率級開關之三相二階感應電動機驅動電路。碳化矽元件具有耐高溫、高頻切換等優勢，可以有效降低轉換器冷卻系統需求以及提升電動機運轉效率。控制架構以間接式轉子磁場導向控制法作為主軸，並利用空間向量脈波寬度調變技術SVPWM(Space Vector Pulse Width Modulation)來控制開關訊號，以達到直流電壓利用率提升之目的。為達成電動機轉速與電流閉迴路控制，並以編碼器來取得轉速回授訊號，將回授之訊號傳遞給數位訊號處理器進行運算處理。本文首先將介紹三相感應電動機模型與原理，接著探討控制方法，並透過模擬軟體PSIM驗證間接式轉子磁場導向控制法之可行性，最後為實作部分，控制核心採用德州儀器公司(Texas Instruments)之數位訊號處理器TMS320F280049C，並使用Wolfspeed所生產的CAS300M12BM2做為功率開關，最終實作輸入電壓400 Vdc、操作頻率20 kHz之三相二階感應電動機驅動電路。

This thesis implements a three-phase two-level induction motor drive circuit with digital control, using SiC MOSFET modules as switching devices. Due to the advantages of high heat-resistant and high frequency, using SiC MOSFET can effectively reduce cooling as well as enhance the efficiency of motor. Indirect Rotor Field Oriented Control is adopted as the control architecture. This thesis also use space vector pulse width modulation (SVPWM) to control signal of switches so as to increase the utilization of DC voltage. In order to achieve the closed-loop control of motor speed as well as current, encoder will be used to obtain the speed feedback signal. Once the feedback signal is obtained, it will be transmitted to the digital signal processor for operation processing. This thesis will start with the model and principle of three-phase induction motor. In the next place, the control method will be discussed. Also, PSIM simulation software will be used to verify the feasibility of indirect rotor field oriented control. Last but not least, the implement part has been realized. The control core utilizes TMS320F280049C digital signal processor, which is manufactured by Texas Instrument. Also utilizes CAS300M12BM2 manufactured by Wolfspeed as the power switching devices. Ultimately, this thesis achieve a 400 Vdc input voltage, 20 kHz operating frequency three-phase two-level induction motor drive circuit.

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