臺灣博碩士論文加值系統

本研究主要針對既有太陽光電案場，併聯不同儲能裝置容量後之最大併網容量分析及負載轉移策略推導成本分析。由於目前太陽能對電網透率過高，且其受到天氣及日照時間的影響，會導致該饋線之負載不穩定之現象，從而導致電網穩定性下降。其發電最高效的下午時段，電網的需求反而降低，然後在日落後需求急遽增加，這將會使得對電網的負載管理變得困難，因此本研究透過有效集演算法針對不同儲能容量推導削峰填谷充放電控制策略，並計算其成本分析之研究。本研究選用台電實際饋線進行模擬及分析，同時考慮目前台電光儲躉售價格及各種儲能建置成本，分析其回收年限、淨現值、內部收益率來確定其最佳儲能容量。由結果得知，本研究所提出的削峰填谷策略可有效執行配電饋線負載轉移，並提升該饋線負載因數，達到電能套利之目標。

This study primarily focuses on the analysis of hosting capacity, load shifting strategy and the cost analysis after a Photovoltaic-Energy storage hybrid systems is interconnected to a distribution system. With the high penetration of solar power in the electrical grid, which is susceptible to fluctuations due to passing-cloud, it can lead to instability in the distribution network. During peak generation periods in the afternoon, grid demand declines and sharply increase after sunset, making load management on the grid increasingly challenging. This study introduces an Active Set Algorithm to derive the optimal charging and discharging control strategies of load shifting with varying storage capacities, and the respective cost analysis. The research utilizes actual feeders for simulation and analysis, simultaneously considering various storage installation costs. The investment evaluation method such as the payback period (PBY), net present value (NPV), and internal rate of return (IRR) are used to determine the optimal energy storage capacity. The findings confirm that the load shifting strategy proposed in this study can effectively execute load shifting on distribution feeders and enhance the feeder load factor, achieving the objective of energy arbitrage.

第一章 緒論 1
1.1 研究背景及目的 1
1.2 文獻回顧 3
1.3 研究方法與步驟 4
1.4 論文章節概要 6
第二章 儲能系統介紹 8
2.1 前言 8
2.2 儲能發展沿革及趨勢 8
2.2.1抽水蓄能 8
2.2.2二次電池 9
2.2.3液流電池 9
2.2.4燃料電池 10
2.2.5超級電容 12
2.2.6熱儲能系統 12
2.2.7電化學儲能電池 12
2.3 國內目前儲能及再生能源併網技術規範 15
2.3.1要點定義用詞 15
2.4 儲能應用契機及其目前躉購價格 16
2.5 成本分析決策指標介紹 20

第三章 儲能模型運作模式及其相關應用 27
3.1 前言 27
3.2儲能系統相關應用 27
3.3 儲能系統模型建立 28
3.4 儲能系統運轉模式簡介 30
3.4.1 儲能之充電狀態 30
3.4.2 儲能系統之放電狀態 32
3.4.3 儲能之怠轉狀態 33
3.5 調度模式 34
第四章 儲能削峰填谷之決策模擬分析 40
4.1 削峰填谷技術簡介及其應用 41
4.2 系統模型建立 42
4.3 儲能系統參數設定 45
4.3 儲能系統削峰填谷模擬分析 48
4.4 儲能系統之最大併網容量分析 57
第五章 儲能系統成本分析 73
5.1 前言 73
5.2 儲能系統成本組成 74
5.3 削峰填谷控制策略之儲能系統成本分析 75
第六章 結論與未來研究方向 85
6.1 結論 85
6.2 未來研究方向 87
參考文獻 88

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