主動式電力調節器在微電網運轉控制之研究

A Study of Active Power Conditioner for Microgrid Operation and Control

許育才(Yu-Cai Hsu)

指導教授 ： 劉志文

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2015年)

https://doi.org/10.6342/NTU.2015.02271

摘要

本論文提出一實虛功補償策略控制主動式電力調節器，將其應用於微電網模擬平台，本研究所建立之模擬平台包括兩組以分散式能源所組成之微電網系統，並將兩微電網以三相背靠背(Back-to-Back; BTB)轉換器即主動式電力調節器連接，同時採用電流優化調變策略對其兩級間之功率潮流進行調控，以提升微電網之電力品質。電流優化調變策略能以適當之調變電流對兩級間之功率潮流進行調整，使三相BTB 轉換器之直流匯流排電壓能迅速的穩在預設之磁滯區間內。最後以MATLAB/Simulink來模擬驗證本論文所提出之實虛功補償策略，分析網模擬平台中主動式電力調節器的性能表現。

關鍵字

微電網 ； 背靠背轉換器 ； 主動式電力調節器 ； 功率潮流

並列摘要

This thesis proposes a power flow control strategy for the three-phase back-to-back (BTB) converter with microgrid. The power flow between micro-grids can be regulated accurately. With the optimal ac-line current regulation strategy, the appropriate input current can be determined quickly to stabilize the dc-bus voltage of the BTB converter. The proposed BTB converter can be adopted as an active power conditioner to improve the power quality of the AC micro-grids. The active power conditioner with the proposed power flow control strategy can regulate the power flow between different AC micro-grids accurately. The platform is coded by popular software, MATLAB/Simulink.

並列關鍵字

AC micro-grid ； back-to-back converter ； active power conditioner ； power flow

參考文獻

[48] 陳要廷，「具功率控制與低電壓穿越之三相市電併聯換流器研製」，國立台灣大學電機所碩士論文，2013。

[52] 姚竺君，「三相併聯型太陽光電能系統模型建立與模擬分析」，國立台灣大學電機所碩士論文，2010。

[1] R. Majumder, “A hybrid microgrid with DC connection at back to back converters,” IEEE Trans. on Smart Grid, vol. 5, no. 1, pp. 251-259, Jan. 2014.

[2] T. Friedli, S.D. Round, D. Hassler, and J.W. Kolar, “Design and performance of a 200-kHz all-SiC JFET current DC-link back-to-back converter,” IEEE Trans. on Industry Applications, vol. 45, no. 5, pp. 1868-1878, Sep.- oct. 2009.

[3] H. Akagi and R. Kitada, “Control and design of a modular multilevel cascade BTB system using bidirectional isolated DC/DC converters,” IEEE Trans. on Power Electronics, vol. 26, no. 9, pp. 2457-2464, Sep. 2011.