微電網與市電併聯之同步控制器設計

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姓名

陳昭憲(Zhao-Xian Chen) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

微電網與市電併聯之同步控制器設計
(Design of Synchronization Controller for Reconnection between Microgrid and Utility Electric Power System)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

本論文旨在設計一同步控制器，使微電網從孤島運轉模式下進行與市電之同步併網。測量共用耦合點(PCC)兩側的三相電壓值，經由鎖相迴路估測相位角，再透過同步控制令微電網與市電之相位差符合IEEE 1547併網之規範，以避免在併網切換過程中，因兩者不同步的原因而導致的不穩定狀況。相位檢測之準確度會受到電力品質不良狀況影響，採用雙二階廣義積分鎖相迴路架構作為同步控制器之基礎，以克服如不平衡、諧波等狀況。透過Matlab/Simulink軟體，以一變流器模擬微電網，進行與市電併聯之過程，驗證同步控制器之可行性。硬體方面則以三相四線半橋式轉換器作為變流器實體架構，使用Renesas RX62T 微處理器實現控制器之設計。

摘要(英)

This paper is aimed to design a synchronization controller for microgrid, which control the microgrid to operate in islanding mode , resynchronize with and reconnect to the grid. Estimate the phase angle through the phase locked loop(PLL) by measuring the three-phase voltage on both sides of the point of common coupling(PCC). Then, utilize the synchronization controller to reduce the phase difference between grid and microgrid, conforming the standard in IEEE 1547 std. Synchronization control is necessary to avoid the unstable situation causing by two system are not synchronized. The accuracy of the phase detection may be affected by the poor power quality. To overcome the situation such as imbalance, harmonic distortion, dual second order generalized integrator PLL(DSOGI-PLL) is adopted for a basis of synchronization controller. Through the Matlab/Simulink, an inverter is simulated as microgrid. Discussing the process of resynchronizing with the grid, thus confirm the feasibility of the proposed synchronization controller. The hardware is based on a three-phase four-wire half-bridge converter as an inverter, using the Renesas RX62T microprocessor to implement the controller design.

關鍵字(中)

★ 微電網
★ 同步併聯
★ 雙二階廣義積分鎖相迴路
★ 電力品質

關鍵字(英)

★ Microgrid
★ Resynchronization
★ DSOGI-PLL
★ Electric power quality

論文目次

論文摘要 i
Abstract ii
致謝 iii
目錄 iv
圖目錄 viii
表目錄 xiii
第一章緒論 1
1-1 研究背景與動機 1
1-2 文獻探討 3
1-3 論文大綱 4
第二章微電網之控制策略 5
2-1 控制策略之分類 5
2-1-1 不具備通訊之控制策略 5
2-1-2 具備通訊之控制策略 7
2-2 主從控制下之併聯運轉與孤島運轉 9
2-3 微電網同步方式 13
2-3-1 主動同步法 13
2-3-2 被動同步法 14
第三章併網之同步檢測法 16
3-1 併網規範 16
3-2 零交越法 18
3-3 電網電壓濾波法 18
3-3-1 αβ濾波法 19
3-3-2 dq濾波法 19
3-4 鎖相迴路技術 20
3-4-1 同步參考座標鎖相迴路 21
3-4-2 雙同步座標鎖相迴路 23
3-4-3 增強型鎖相迴路 25
3-4-4 雙二階廣義積分鎖相迴路 26
3-5 章節總結 30
第四章模擬結果 31
4-1 控制系統架構 31
4-1-1 孤島運轉模式 31
4-1-2 併聯運轉模式 33
4-1-3 正弦波脈波寬度調變技術 34
4-2 鎖相迴路技術模擬 34
4-3 電力品質不良下檢測相位角差 39
4-4 有無同步控制之情境模擬 48
第五章實驗結果 53
5-1 微處理器介紹與程式規劃 53
5-1-1 微處理器RX62T之介紹 53
5-1-2 程式規劃 55
5-2 測試平台介紹與波形記錄 56
5-3 實際併網之設備環境介紹與波形記錄 61
第六章結論與未來發展 68
6-1 結論 68
6-2 未來研究方向 69
參考文獻 70

參考文獻

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指導教授

陳正一(Cheng-I Chen)

審核日期

2017-7-27

推文