太陽能與燃料電池混合電力系統之研製

Realization Study of Hybrid Power System Combining Photovoltaic and Fuel Cell Modules

張志豪(Chin-Hao Chang)

指導教授 ： 謝冠群 ； 謝宏毅

中原大學/工學院/電機工程研究所/碩士(2011年)

https://doi.org/10.6840/cycu201100566

摘要

本論文提出一種太陽能與燃料電池混合式轉換器，其混合包含太陽能最大功率追蹤昇壓型轉換器與燃料電池Z-Source轉換器，目的在於實現在不同的太陽光照度下，能提供固定輸出功率。利用功率增量最大功率追蹤法(PI-MPPT)，昇壓型轉換器得以適時精確且快速地取得太陽能電池的最大功率轉換。本研究選用Z-Source轉換器搭配燃料電池當作混合系統的主控裝置。依據太陽光照度的變化，昇壓型轉換器的責任週期dB的改變對應於調節Z-Source轉換器的責任週期dZ，使得輸出保持穩定的固定功率；據此，減少燃料電池的能量輸出。本文對整個太陽能與燃料電池混合系統的系統及設計均作詳細探討。最後實際製作一組230W的太陽能與燃料電池混合系統，以實驗驗證在不同的太陽光照度下，本混合轉換器可以保持混合電力在定功率下的穩定輸出。

關鍵字

混合電力 ； Z-Source轉換器 ； 太陽能 ； 燃料電池

並列摘要

A PV/fuel cell (PV/FC) hybrid converter (PV/FC-HC) with new power-increment maximum power point tracking (PI-MPPT) is proposed. The PV/FC hybrid converter consisting of a PV boost converter (PVBC) as current source and a FC Z-source (FZZC) as voltage source can adaptively provide constant output power to the DC bus without backup battery for regulation. The proposed PI-MPPT guiding the PVBC with an easy duty-control makes energy pump from PV module accurate and fast. The Z-source converter adopted is to fit the FC characteristic and well do as a basis for hybrid. A complementary duty-cycle control between dB of PVBC and dZ of FCZC can adaptively vary each other as per the solar insolation change, which contributes not only output power to DC bus constant but also energy saving from FC. An experimental setup of 230W PV/FC-HC is designed and examined for assessing the performance and feasibility in application.

並列關鍵字

PV ； Fuel Cell ； Hybrid ； Z-Source

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