臺灣博碩士論文加值系統

由於許多交直流電源轉換器在直流端均會並聯一直流電容以作為穩壓之用，此大電容將造成負載諧波特性的改變；此類的諧波源負載，如果使用現今常見的並聯式主動電力濾波器並不能很有效的解決此類諧波問題；因此本文將採用串聯式主動式電力濾波器，並配合量測負載電壓的控制模式，即可有效的解決此類諧波問題。
本文採用以同步座標轉換法為基礎之快速演算法 ，能快速且容易的估算出所需之補償電壓值，使得串聯式主動電力濾波器能有效地用於改善負載端電壓之諧波。
目前文獻上和工業界產品所使用之控制核心可分為類比與數位兩種方式。本論文所採用的控制架構是以個人電腦為基礎，配合研華科技公司PCL-1800資料擷取卡來完成一三相三線之主動電力濾波器之控制核心。

Because a bulk smoothing capacitor is usually installed on the DC side of many AC to DC converters, the characteristics of harmonic loads will be changed by this capacitor. Nowadays, shunt active power filters can’t reduce harmonics effectively for this voltage type harmonics-producing load. Therefore, in this thesis, a series active power filter (APF) is designed to meet the requirement of voltage-sourced harmonic loads. Both source current and load voltage are detected in order to reach the compensation voltage for the series APF.
A novel algorithm based on synchronous axis transformation method is proposed to calculate the reference signal for the compensation voltage in a very efficient manner. The designed series type APF can be used to compensate for voltage harmonics.
In the literature, there are two kinds of control kernels of active power filters: one is the analog control method and the other is the digital control method. In this thesis, digital system architecture is used to set up the control kernel. This three-phase three-wire active power filter is based on a personal computer with two Adventec PCL-1800 data acquisition boards.

第一章 緒論 1
1.1 研究背景與動機 1
1.2 諧波簡介 2
1.2.1 諧波成因與定義 2
1.2.2 產生諧波電流的負載 5
1.2.3 諧波所造成的問題 10
1.2.4 諧波管制標準 10
1.3 諧波改善的方法 12
1.4 論文內容介紹 13
第二章 理論基礎 15
2.1 前言 15
2.2 負載諧波特性 15
2.3 主動電力濾波器簡介 17
2.3.1 各種主動濾波器的分類與比較 18
2.3.2 控制策略的分類 22
2.4 補償命令之運算 23
2.4.1 同步座標轉換法 23
2.4.2 控制電路之比較 25
2.4 模擬結果 31
第三章 反流器主電路之設計 35
3.1 前言 35
3.2 脈衝寬度調變（PWM）切換技術 36
3.3 主電路設計 40
3.3.1 主電路元件參數選定 40
3.3.2 開關元件的選擇及額定參數 43
3.3.3 補償電路容量的計算 44
第四章 主動式濾波器之電路製作 45
4.1 前言 45
4.2 硬體電路製作： 45
4.2.1資料擷取卡之介紹： 46
4.2.2 感測器(Sensor) 49
4.2.3電力電路之製作 50
4.2.4鎖相迴路(PLL)與零點偵測(Zero Crossing) 52
4.2.4脈波寬度調變(ＰＷＭ)電路 55
4.2.5 驅動電路之製作 56
4.3 軟體程式規劃 59
4.3.1補償命令之運算 61
4.3.2數位低通濾波器 61
4.3.3 控制訊號輸出 63
第五章 主動式電力濾波器之實驗結果 64
5.1前言 64
5.2實驗結果與討論 64
第六章 結論 83
6.1結論 83
6.2未來發展方向 83
參考文獻 84

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