市電併聯型太陽光電發電系統之優化模擬分析

本論文使用 PVSyst 太陽光電模擬軟體，對位於新竹市香山區裝置容量 93.025kWp 併聯型太陽光電發電系統進行分析及模擬，並使用 Solidworks 及 Sketchup 3D 建模軟體繪製 3D 圖，再帶入 PVSyst 中以完成進階遮蔭模擬分析，將實際監測日照強度及溫度帶入 PVSyst 軟體中以模擬發電量，再與實際發電量比較及計算誤差百分比。本文也探討不同傾斜角與方位角對太陽光電系統發電量的影響，以達到優化的目的。對於實際案場依現行躉購費率作經濟效益分析，以計算出太陽光電發電系統的回收年限。本文並針對鈍化射極與背面電池技術、半切片及多柵線三種不同製程的太陽能模組作發電量分析，以探討模組製程的發展方向。 PVSyst 太陽光電模擬軟體使用內建氣象資料模擬結果，全年發電量與實際發電量誤差平均值約-11.6%，使用實際日照數據帶入模擬軟體，模擬發電量與實際發電量平均誤差百分比降為-4.58%。本文探討不同傾斜角與方位角對發電量的影響，得出其最佳發電量之傾斜角為 15.3 度，太陽能模組架設於正南為最佳，其年發電量為 118.23MWh。使用 PVSyst 太陽光電模擬軟體之經濟效益分析，得出本案場回收年限約為 8.6 年。對於不同製程太陽能模組發電量分析結果，多柵線太陽能模組優於半切太陽能模組及 PERC M4 太陽能模組，2020 年一月到五月平均發電量多柵線模組優於 M4 模組百分比為 3.59%。半切片模組優於 M4 模組百分比為 1.65%。

關鍵字

太陽光電發電系統；市電併聯型；傾斜角；方位角；經濟效益分析

並列摘要

This paper uses PVSyst photovoltaic simulation software to analyze and simulate the 93.025kWp Grid-connected photovoltaic generation system in Siangshan District, Hsinchu City, and uses Solidworks and Sketchup 3D modeling software to draw 3D diagrams, and then introduce it into PVSyst to complete the shadow simulation. The analysis brings the actually monitored irradiation and temperature into the PVSyst software to simulate the power generation, and then compares with the actual power generation and calculates the percent deviation. This paper also discusses the influence of different tilt angles and azimuth angles on the power generation of the photovoltaic system to achieve the purpose of optimization. For the actual case, analyze the economic benefits based on the current bulk purchase rate to calculate the recovery period of the photovoltaic power generation system. This article also analyzes the power generation of solar modules through three different processes, including passive emitter and back cell technology, PERC、half-cut and multi-bus bar, to explore the development direction of the module process. PVSyst photovoltaic simulation software uses internally built weather data simulation results, the average error between the annual power generation and the actual power generation is about -11.6%. Using the actual irradiation data to bring into the simulation software, the average error percentage between the simulated power generation and the actual power generation is reduced to -4.58 %. Discussing the influence of different tilt angles and azimuth angles on power generation, it is concluded that the tilt angle of the best power generation is 15.3 degrees, and the solar module installed in the south is the best, and its annual power generation is 118.23MWh. The economic benefit analysis of PVSyst photovoltaic simulation software shows that the recovery period of this case is about 8.6 years. For the analysis results of solar module power generation of different manufacturing processes, multi-bus bars solar modules, half-cut solar modules and PERC M4 solar modules, From January to May 2020, the average power generation of multi-barrier modules is 3.59% better than M4 modules. The halfcut module is better than the M4 module by 1.65%.