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  • 學位論文

適應性監督式模糊小腦模型控制器於感應馬達向量控制系統之設計

Design of Adaptive Supervisory Fuzzy Cerebellar Model Articulation Controller for Induction Motor Vector Control System

指導教授 : 曾傳蘆 王順源

摘要


本論文結合小腦模型控制器與模糊理論,來設計適應性監督式模糊小腦模型控制器(adaptive supervisory Fuzzy cerebellar model articulation controller, ASFCMAC),其內含監督控制器,可加強對系統之暫態響應補償;同時,適應性模糊小腦模型控制器(adaptive Fuzzy cerebellar model articulation controller, AFCMAC)會逼近系統動態響應,且其權重記憶體會根據適應法則而進行線上調適,並透過Lyapunov理論來確保系統之穩定性。 本論文基於適應性參考模型系統(model reference adaptive system, MRAS)之適應性轉子磁通估測器架構,來建立適應性轉速估測器與適應性轉子電阻估測器,並將其應用於向量控制系統中,並透過模擬與實驗來證明本控制器對於參數變動與外加負載變動影響之強健性。最後,將適應性監督式模糊小腦模型控制器、適應性模糊小腦模型控制器與適應性小腦模型控制器輸出的結果做比較並以均方根誤差作為性能評估指標。經由模擬與實驗結果證明,本控制器的轉速不但能快速響應且性能皆優於適應性模糊小腦模型控制器與適應性小腦模型控制器,同時在馬達參數變動及加入外部負載擾動下仍具有很好的強健性。

並列摘要


This dissertation presents a novel speed-control scheme for an induction motor (IM) using an adaptive supervisory fuzzy cerebellar model articulation controller (ASFCMAC). The ASFCMAC has a supervisory controller and an adaptive fuzzy cerebellar model articulation controller (AFCMAC) and is used as the speed controller. The supervisory controller monitors the control process to keep the speed tracking error within a predefined range, and the AFCMAC approximates the system dynamics. The connective weights of the AFCMAC were adjusted online according to the adaptive rules described in Lyapunov stability theory to ensure system stability. An adaptive speed observer and rotor resistance observer were designed using the structure of the model reference adaptive system (MRAS). To achieve the proposed system, the ASFCMAC, the rotor speed observer, and the rotor resistance observer were integrated and implemented in a field-oriented control (FOC) induction motor drive. The robustness of the proposed ASFCMAC against parameter variation and external load torque disturbance was verified by simulation and by experiment. Three control schemes, the ASFCMAC, AFCMAC, and ACMAC, were experimentally investigated, and a performance index, root mean square error (RMSE) was applied for each scheme. The experimental results demonstrate that the ASFCMAC outperformed the two other control schemes with external load torque variations.

參考文獻


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