124-光伏支架選型分析(更新版)
【正文】 fixing thesolar panels. An appropriate form has great significance in controlling the engineering cost of photovoltaic plant. This paper introduced the mon bracket types and support forms that used in photovoltaic power station,showedthe characteristics of all kinds of support forms,and then analyzed theirsteel consumption, stress and displacement. The result provide a reference for the support structure designof photovoltaic power station.Key words：PV support bracket；support form；steel consumption0引言隨著現(xiàn)代工業(yè)的發(fā)展，能源危機(jī)和大氣污染問(wèn)題日益突出，太陽(yáng)能以其獨(dú)有的優(yōu)勢(shì)成為人們重視的焦點(diǎn)。為光伏電站支架結(jié)構(gòu)設(shè)計(jì)提供參考。所以在采用薄膜類電池組件的光伏電站中尤其要注意對(duì)支架變形的要求。因此，本文研究主要針對(duì)地面光伏中的鋼結(jié)構(gòu)支架。但此種支架也有一定的局限性：1）因其無(wú)法在高度方向調(diào)節(jié)支架，此支架僅適用于地勢(shì)平坦、起伏較小的地形；2）由于該支架取消了長(zhǎng)短支腿，使橫梁懸挑長(zhǎng)度加長(zhǎng)，上部荷載增大時(shí)，支架產(chǎn)生的撓度也會(huì)增大，這對(duì)光伏支架系統(tǒng)的穩(wěn)定性及無(wú)邊框光伏組件的破損率都會(huì)造成隱患，因此人字形支架僅適用于風(fēng)荷載較小的工程環(huán)境。結(jié)構(gòu)內(nèi)力及節(jié)點(diǎn)位移見(jiàn)圖7~
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