本文利用Matlab/Simulink模擬軟體來進行建模之工作，首先針對在不同環境溫度和日照強度之下的太陽能電池模組之輸出特性進行了建模、模擬及分析。此外，本文使用直流/直流升壓型轉換器並搭配擾動觀察法則建構出具最大功率追蹤的太陽能發電模型。並且控制變流器操作於市電併聯運轉模式，以提供負載之交流電源。
市電併聯模式所帶來的孤島現象(Islanding)對負載、變流器和人員安全構成了危險，所以，併網變流器都應具有偵測出孤島現象並停止市電併聯運轉的能力。本文介紹了變流器併網孤島偵測的相關背景、現況和研究主動式孤島偵測的系統等效模型，並深入討論主動電流擾動法、頻率漂移法的原理。經模擬結果可知在功率匹配情況下，亦可以偵測出孤島現象。

This thesis presents the modeling of a photovoltaic power generation system and islanding detecting methods by using Matlab/Simulink simulation software. First of all, the study carried out modeling, simulation, and analysis for output characteristics of the solar cell modeling under the environment of different temperatures and sunlight intensities. Moreover, the study built solar power tracking model by using the DC/DC boost conve rter and perturbation & observation algorithm. Finally, the system can operate in a grid-connected mode for supplying A.C. source to the loads.
The islanding phenomenon resulted from the system in a grid-connected mode that has hazards to load, inverter and personnel security, so all grid-connected inverters should have the ability to detect islanding status and stop the run mode of grid-connect. This thesis introduces the background of islanding detection of grid-connect inverter and the system equivalent mode. And the study deeply discuss the principle of current disturbance and frequency drift method between active islanding detection system and inverter. By analyzing the simulation result, the islanding phenomenon can also be detected under the condition of power matching.

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