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系統識別號 U0026-2008201817190000
論文名稱(中文) 應用磁電耦合分析之內藏式永磁同步馬達弱磁控制
論文名稱(英文) Flux-Weakening Control for Interior Permanent Magnet Synchronous Motors using Coupled Field-Circuit Analysis
校院名稱 成功大學
系所名稱(中) 系統及船舶機電工程學系
系所名稱(英) Department of Systems and Naval Mechatronic Engineering
學年度 105
學期 2
出版年 106
研究生(中文) 張晉瑋
研究生(英文) Chin-Wei Chang
學號 P16054206
學位類別 碩士
語文別 中文
論文頁數 94頁
口試委員 指導教授-謝旻甫
口試委員-白富升
口試委員-張簡樂仁
中文關鍵字 內藏式永磁同步馬達  每安培最大轉矩控制  磁飽和  端部效應 
英文關鍵字 interior permanent magnet motor  coupled field-circuit analysis  magnetic saturation  maximum torque per ampere  flux-weakening control  end turn 
學科別分類
中文摘要 本研究利用有限元素模型進行磁電耦合模擬,分析端部繞組及材料飽和對內藏式永磁馬達在弱磁控制上之影響,並提出修正其誤差之控制法。端部效應使馬達產生額外的損耗,控制上會因參數不準確降低響應速度,且在電路限制下,端部電感會因為高速操作令其影響增大,進而導致使轉速不如預期之現象。本文以端部參數之修正改善及討論端部效應對馬達整體輸出性能之影響。此外,內藏式永磁馬達在構造上具有凸極效應(Saliency Effect)之特性,因此可藉由每安培最大轉矩控制(Maximum Torque per Ampere, MTPA)增加馬達輸出性能,然而電流軌跡在計算上仰賴馬達參數之精確度,磁飽和效應所造成之磁路特性改變在傳統每安培最大轉矩控制上並無考量。本文分析飽和效應在不同操作條件下對馬達參數之影響。首先針對理想數學模型與有限元素分析結果的差異,探討各參數變動及馬達輸出特性之變化,提出考慮材料飽和之電流軌跡估測法,修正磁飽和導致電流角不準確的問題,最後利用磁電耦合模擬獲取所需之馬達參數,並由實驗驗證模擬結果。
英文摘要 This thesis investigates the effect of end turns and magnetic saturation on flux-weakening performance of interior permanent magnet (IPM) motors. An approach is then developed for compensation of these effects. End turns may cause additional voltage drops and omission of end turn parameters in control design could degrade system response and the operating range could also be overestimated. In this thesis, a feedforward is employed to compensate the end turn effect and the effectiveness on performance of IPM motors is discussed. In addition, maximum torque per ampere (MTPA) control is usually applied to IPM motors in order to gain the advantages of reluctance torque. To achieve the MTPA, the control trajectory of current command can be calculated with motor parameters. However, the performance of common MTPA technique can be poor due to the negligence of magnetic saturation (i.e., ideal model). This thesis analyzes the effect of magnetic saturation on the variations of motor parameters under different operating conditions. The difference between the ideal model and coupled field-circuit finite element analysis (FEA) is identified and then the effect on motor performance due to these factors (i.e., saturation and end turns) is discussed. This thesis proposes a method to estimate the MTPA current trajectory considering the saturation effect using the required parameters obtained by simulations. The inaccurate current angles due to saturation can be compensated by the proposed method, which is then validated by experiments.
論文目次 摘要 I
Abstract II
致謝 IX
目錄 X
圖目錄 XIII
表目錄 XVII
符號表 XVIII
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 4
1.3 文獻回顧 5
1.4 論文架構 9
第二章 內藏式永磁同步馬達驅動及控制 10
2.1 內藏式永磁同步馬達數學模型 10
2.1.1 參考座標系 11
2.1.2 兩軸永磁同步馬達模型 15
2.2 磁場導向控制 21
2.3 永磁馬達的驅動技術 23
2.3.1 電壓空間向量原理 23
第三章 內藏式永磁馬達之弱磁控制 32
3.1 弱磁控制 32
3.2 每安培最大轉矩控制 35
3.3 電流限制之弱磁控制 38
3.4 每伏特最大轉矩控制 40
3.5 磁場導向架構之永磁馬達弱磁控制 41
3.5.1 電樞控制與多迴路控制系統 41
3.5.2 電壓命令解耦 43
3.5.3 偽微分回授控制器設計 45
第四章 磁飽和及端部繞組效應之磁電耦合分析 49
4.1 有限元素分析與多域系統耦合 49
4.1.1 有限元素分析與等效電路抽取 50
4.1.2 磁電耦合模擬架構 52
4.2 端部繞組與材料磁飽和效應 56
4.2.1 定子端部繞組之影響 56
4.2.2 矽鋼片磁飽和之影響 61
4.3 磁飽和影響之弱磁電流軌跡修正 68
4.3.1 變動參數之修正 68
4.3.2 模擬結果之比較與分析 74
第五章 系統架構及實驗結果分析 77
5.1 硬體在線迴路系統 77
5.2 測試結果與模擬比較 80
第六章 結論與建議 89
6.1 結論 89
6.2 建議 90
參考文獻 91
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