臺灣博碩士論文加值系統

　　本文旨在研製蓄電池儲能系統及配合單相市電併聯功率轉換之雙向功率轉換器。此系統包含蓄電池模組之三臂式昇、降壓直流-直流功率轉換器、單相全橋型直流-交流功率轉換器，其中三臂式昇、降壓直流功率轉換器具雙向功率轉換功能，可分別對蓄電池模組進行充、放電，並使用高頻變壓器隔離，因為是三臂式電路，故適用於高功率場合。在蓄電池方面，三臂式昇、降壓直流-直流功率轉換器上臂開關改用輸入電感使各臂電感電流維持在連續導通模式，並藉交錯式脈波寬度調變，減少電流漣波。在單相全橋型直流-交流功率轉換器方面，市電電壓利用數位全通濾波器算出市電之角位置，並採用前饋補償控制策略以提高暫態響應速度及減少穩態誤差；同時配合直流鏈電壓與交流電感電流之電壓閉迴路控制，完成蓄電池儲能系統。

　　本文以高性能的數位信號處理器(DSP,TMS320F28069)作為系統之控制核心，其整體系統之控制策略及能量管理皆由軟體程式完成，以達到數位化之控制。在放電模式時，蓄電池輸出500W之功率至市電側，整體系統效率87%，三臂式直流-直流功率轉換器放電電流漣波為3%，單相直流-交流功率轉換器之電流總諧波失真率為9.59%。在充電模式時，市電側以定電流方式輸出500W功率至蓄電池，整體系統效率78%，三臂式直流-直流功率轉換器充電電流漣波為2%，單相直流-交流功率轉換器之電流總諧波失真率為9.81%。實測結果驗證本文分析及控制法則之可行性。

　　The aim of this thesis is to develop a new system using battery as energy storage unit for a single-phase power grid paralleled with a power converter for bidirectional power conversion. The system includes a three-arm buck-boost bidirectional dc-dc power converter with a battery module and a single-phase full-bridge dc-ac power converter. The three-arm buck-boost bidirectional power converter, using high-frequency transformers as isolators, can be used to charge and discharge the battery. Moreover, it is three-arm circuit, can be used in high power applications. By using input inductors on the upper arms of the three-arm buck-boost bidirectional dc-dc power converter, making inductor currents work in continuous conducting mode, and implementing pulse-width modulation, one can reduce ripple currents efficiently. In addition, applying digital all-pass filter to estimate the angle of the supply mains voltage, and introducing feedback, one can increase transient response and reduce steady-state error of the single-phase full-bridge dc-ac power converter.

　　In this thesis, a high performance digital signal processor, TMS320F28069, is used to control the whole system and monitor overall energy usage. Under discharging mode, the battery provides a total output of 500 W to the supply mains, with an overall efficiency of 87%. The three-arm buck-boost bidirectional power converter has a current ripple of 3%, and the single-phase full-bridge dc-ac power converter has a total current harmonic distortion of 9.59%. On the other hand, the battery receives a 500 W input from power grid through constant-current charging operation, The corresponding efficiency is 78%. The three-arm buck-boost bidirectional power converter has a current ripple of 2%, and the single-phase full bridge dc-ac power converter has a total current harmonic distortion of 9.81%. The result confirms the analysis as well as the feasibility of the proposed control strategy.

中文摘要
英文摘要
致　　謝
目　　錄
符號索引
圖表索引
第一章　緒論
1.1　研究動機及目的
1.2　文獻探討
1.3　系統架構及本文特色
1.4　本文大綱
第二章　三臂式雙向直流-直流功率轉換器昇壓(放電)模式分析
2.1　前言
2.2　三臂式昇壓模式之直流-直流功率轉換器分析與控制
2.2.1 三臂式昇壓模式之工作原理
2.2.2 三臂式昇壓模式之控制策略分析
2.3　結語
第三章　三臂式雙向直流-直流功率轉換器降壓(充電)模式分析
3.1　前言
3.2　三臂式降壓模式之直流-直流功率轉換器分析與控制
3.2.1 硬性切換與柔性切換介紹
3.2.2 三臂式降壓模式之工作原理
3.2.3 三臂式降壓模式之控制策略分析
3.3　結語
第四章　三臂式雙向直流-直流功率轉換器之參數設計與實測
4.1　前言
4.2　磁性元件設計
4.2.1 磁性材料介紹
4.2.2 高頻變壓器設計
4.2.3 輸入電感設計
4.2.4 諧振電感設計
4.3　盲時設定選擇
4.4　三臂式雙向直流-直流功率轉換器實測
4.5　結語
第五章　單相直流-交流功率轉換器分析與控制
5.1　前言
5.2　單相直流-交流功率轉換器之數學模式
5.3　單相直流-交流功率轉換器之脈波寬度調變控制
5.3.1 全通濾波器
5.4　單相市電併網控制策略
5.5　濾波電感與濾波電容之設計
5.6　單相直流-交流功率轉換器實測
5.7　結語
第六章　系統整合及實測
6.1　前言
6.2　數位信號處理器介面電路與回授規劃
6.3　系統軟體規劃
6.3.1 系統主程式之規畫
6.3.2 蓄電池放電之控制程式
6.3.3 蓄電池充電之控制程式
6.3.4 單相市電併網之控制程式
6.4　實測結果
6.5　結語
第七章　結論與未來研究方向
7.1　結論
7.2　未來研究方向
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