臺灣博碩士論文加值系統

本文提出具相位交錯並聯換流器之市電併聯設計，主控模組分別送出同步訊號與交錯相位移訊號達成換流器同步輸出與電力系統同步運轉，換流器相互並聯將能源饋回電力網路分攤負載用電之主要目的。
數位訊號處理器取得電流訊號與電壓訊號經控制器回授控制補償，利用控制性區域網路(CAN bus)傳遞模組間的電流訊息，經由零點偵測電路做為與市電併聯電壓基礎，以相位交錯式並聯換流器方式將脈波寬度調變錯開一個角度抵消電流漣波，減少換流器輸出之電流漣波，有效降低切換頻率過高對整個電力系統電磁波干擾(EMI)影響，雙模組輸出與110 V/60 Hz交流弦波電力系統網路併聯連結運轉，達成降低電流漣波失真並聯模組之電源回送至電力系統。

A grid-tied parallel inverter with interleaving phase shift is proposed in this thesis. The master module generates synchronous and interleaving phase shift signals to achieve grid-tied system that make the inverter to output current to the power line and share the load.
The DSP TMS320F2812 is used for system feedback control with voltage and current by using A/D converters to generate the output current close to sine wave. The output current values are transmitted via CAN (Control area network) between inverter modules. The grid-tied system uses zero-voltage-detection circuit to synchronize the inverter currents with grid voltage. The PWM voltage for each switching interval is interleaving to reduce the total output current ripple so that the switching frequency can be reduced and the power system EMI problem can be alleviated as well. The experiment system is with parallel inverters to reduce output current harmonic distortion.

摘要..............................................i
Abstract. ........................................ii
誌謝..............................................iii
表目錄............................................vii
圖目錄............................................viii
第一章 緒論.......................................1
1.1 研究動機與目的................................1
1.2 文獻探討......................................2
1.3 研究架構與方法................................7
1.4 論文大綱......................................9
第二章 單相換流器系統原理與分析...................10
2.1 換流器種類簡介................................10
2.2 換流器操作原理簡介............................11
2.2.1 全橋式換流器基本架構.......................11
2.2.2 正弦脈波寬度調變...........................12
2.2.3 單極性切換.................................12
2.3 換流器之架構..................................14
2.3.1 連結電力網路運轉模式的電路架構簡介.........14
2.3.2 換流器之電流模式控制器原理.................16
2.3.3 電流控制器設計分析.........................18
第三章 換流器並聯運轉與電力連結運轉架構分析設計...22
3.1 換流器並聯之電路架構分析......................22
3.1.1 並聯種類方式簡介...........................22
3.1.2 單一換流器連結電力網路分析.................23
3.2 換流器並聯之運轉方式..........................24
3.2.1 外部中斷並聯運轉原理.......................25
3.2.2 外部中斷同步輸出原理.......................26
3.2.3 外部中斷相位交錯同步輸出原理...............27
3.2.4 外部中斷同步輸出...........................28
3.2.5 外部中斷相位交錯輸出.......................30
3.3 並聯連結電力網路運轉架構分析..................32
3.4 併聯開關切換模式比較分析......................34
第四章 系統軟體規劃與硬體電路設計.................35
4.1 架構與規格....................................35
4.1.1 數位訊號處理器簡介.........................35
4.1.2 CAN bus通訊網路簡介........................35
4.1.3 CAN bus通訊格式............................36
4.1.4 內建SIN_TABLE規劃..........................38
4.2 系統軟體規劃..................................39
4.2.1 系統程式初始化流程.........................39
4.2.2 系統回授程式流程...........................40
4.2.3 模組一與模組二並聯之程式規劃流程...........42
4.2.4 併聯電力網路流程...........................44
4.3 硬體電路設計..................................45
4.3.1 CAN bus控制區域網路節點規劃................45
4.3.2 電壓偵測電路...............................46
4.3.3 電流回授電路...............................48
4.3.4 零點偵測電路...............................49
4.3.5 換流器閘極驅動電路.........................50
4.3.6 換流器輸出濾波器設計.......................51
第五章 實驗結果與討論.............................53
5.1 模組一與模組二之系統硬體電路規格..............53
5.2 單模組單相換流器併聯電力網路輸出..............54
5.3 雙模組換流器並聯併聯電力網路輸出..............57
5.3.1 雙模組換流器同步併聯電力網路輸出...........57
5.3.2 雙模組換流器交錯式併聯電力網路輸出.........59
5.4 換流器並聯輸出之電流漣波比較..................61
5.5 實驗結果討論..................................63
第六章 結論與未來展望.............................64
6.1 結論..........................................64
6.2 未來展望......................................64
Extended Abstract
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