具模糊控制之預測型直接轉矩控制系統晶片設計與實現

Design and Implementation of The Predictive Direct Torque Control ASIC with Fuzzy Controller

陳心喜(Xing-Xi Chen)

指導教授 ： 宋國明

共同指導教授 ： 李俊賢

國立臺北科技大學/電資學院/電機工程系所/碩士(2014年)

https://doi.org/10.6841/NTUT.2014.00763

摘要

傳統直接轉矩控制係使用遲滯控制器來控制轉矩與磁通，當其實現於離散數位系統時，數位控制器會因為取樣的時間和計算時間的延遲而造成遲滯控制器產生較大的漣波響應，導致控制能力下降。本論文所提出之控制系統藉由偵測馬達三相電壓、電流與轉子轉速來計算出馬達磁通量與轉矩量，再以模糊控制器改善其速度回授以穩定整體控制系統，同時配合模糊向量切換表和預測控制可以得到適當的電壓向量，此不僅有效改善傳統直接轉矩控制的轉矩及磁通漣波響應過大的缺點，同時改善速度響應而使系統更為穩定
本論文運用硬體描述語言撰寫出控制系統的運作模式，並以可規劃邏輯閘陣列FPGA確認語法與驗證功能正確無誤後，藉由台積電TSMC0.18-μm製程的元件庫與Synopsys和Cadence公司所提供的最佳化軟體來完成電路合成、自動佈局繞線與驗證等流程，最後完成整個三相感應交流馬達控制晶片的設計與製作。

關鍵字

硬體描述語言 ； 直接轉矩控制 ； 模糊控制 ； 特定應用積體電路

並列摘要

In general, functions with hysteresis controller, which introduces the traditional direct torque control(DTC) system. However, the hysteresis controller will introduce more ripple in discrete digital system. Notify that both sampling and calculating delay times contribute the ripple response which degrades the control quality in motor system. The proposed control system calculates the stator's magnetism flux and torque with detecting the three-phase current, three-phase voltage and the rotor speed.Futher more the fuzzy controller,the predictive controller , and the coordinate transform circuit , are used to have a suitable response in voltage vector, which not only improves the torgue in conventional DTC, but also eliminates the large ripple in flux. Both advantages enhance the system stability. by decreasing the time delay in hysteresis controller.
After the syntax and function have been verified, the control system is implemented with the synthesis tool, the auto place & routed tool, and the, verification tool, an ASIC is fabricated in 0.18-μm 1P6M CMOS process for three-phase induction motor control system.

並列關鍵字

Hardware description language ； direct torque control ； Fuzzy Controller ； application-specific integrated circuit

參考文獻

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