不同負載對太陽光電發電系統發電效率影響分析

Impact Analysis for Different Load of Solar Systems of Power Generation Efficiency

翁至凡(Jhih-Fan Wong)

指導教授 ： 王長春

國立臺北科技大學/機電學院/能源與冷凍空調工程系碩士班/碩士(2012年)

摘要

各國工業發展均需仰賴電力，然而在快速的開發下，地球上剩有的石化能源卻已日漸短缺，人類生存的環境污染也越趨嚴重，尤以台灣地區缺少天然能源，發電成本較高，致力於替代能源開發乃成為是當前迫切的課題之一。再生能源取之不盡、用之不竭，且無環保等問題，因此再生能源可說是目前最有發展潛力的電力來源；分散式發電在電力系統中扮演角色隨再生能源與環境意識抬頭下，已越來越重要，台灣地狹人密，能源多仰賴進口，近年更以發展科技島為目標，因此綠色電能消費科技與綠色電能生產科技均不能偏廢。綠色電能消費科技方面，與能源耗用相關者應優先發展，綠色電能生產科技則應優先推動高科技產業的生產技術，以及國際環境管理規範ISO14000，再加強傳統產業的減廢與回收再利用技術。
由本文實驗結果可知，負載變化對市電併聯型太陽能發電系統並無太大的影響，發電效率只與光照強度有關，而負載變化對獨立型太陽光電發電系統有顯著的影響性。在分析其數據，可得知當蓄電池未滿時，在不同的日照強度其最大功率點因日照強度及負載量而有所變化。當負載量相同時日照強度越強，其最大功率點則越高，反之則越低。當負載量不同時，其負載量需達一定程度後，始可維持在對大功率點；而在蓄電池已充滿時，其最大功率點則只與負載量有關，當負載量達一定程度後則維持在對大功率點。

關鍵字

太陽能發電系統 ； 負載影響

並列摘要

The economic of the world grow up very quickly and the energy requirement is more and more. The electric power is need more for the industry. However, the oil in the earth will exhaust in recent years. Today, there are many scientists try to find a new energy. The renewable energy, due to their inexhaustible supply and environmentally clean characteristic, is probably a kind of most potential renewable energy for recent development . The distributive power generations become the most important as the environmental awareness and renewable energy development. Since the most of the energy are imported in Taiwan, the development, technology and implementation of renewable energy are the major policies and action items. For the energy consumption, the power reduction technology shall be the first priority to develop and achieve “green power consumption”. For the green power generation, the technology of renewable energy generation is the first priority and shall commit to ISO 14000 standards. The development of reduce, recycle and reuse technology of traditional industry shall enhance simultaneously.
This paper shows the experimental results, the load changes on grid-connected photovoltaic energy conversion system in parallel is not much affected, only the power generation efficiency and light intensity, while the load changes on the stand-alone photovoltaic energy conversion system have a significant impact nature. In analyzing their data, be able to tell when the battery is not full, sunshine intensity at different of its maximum power points load due to sunlight intensity and amount of change. When the same load, the stronger sunlight intensity, the maximum power point is higher, and vice versa, the lower. When the load is not the same, the load required to reach a certain level before they can be maintained in the high-power points; while the battery is fully charged, its maximum power point only with the load, and when the load reaches a certain level is maintained in the power point.

並列關鍵字

Solar system ； Load affect

參考文獻

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