{"id":3146,"date":"2024-11-21T10:56:35","date_gmt":"2024-11-21T02:56:35","guid":{"rendered":"https:\/\/todos-china.com\/?p=3146"},"modified":"2024-11-21T10:56:35","modified_gmt":"2024-11-21T02:56:35","slug":"evaluation-du-nettoyage-des-centrales-photovoltaiques","status":"publish","type":"post","link":"https:\/\/todos-china.com\/fr\/evaluation-of-photovoltaic-power-plant-cleaning\/","title":{"rendered":"Formules de calcul des effets et intervalles de nettoyage des centrales photovolta\u00efques"},"content":{"rendered":"<p>Ces formules cl\u00e9s aident \u00e0 \u00e9valuer l\u2019impact du nettoyage et \u00e0 d\u00e9terminer les intervalles de nettoyage optimaux pour les centrales photovolta\u00efques :<\/p>\n<h2>Capacit\u00e9 de production d&#039;\u00e9nergie des modules photovolta\u00efques<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> L<sub>p<\/sub> = 1 \u2013 (W<sub>un<\/sub> \/ W<sub>t<\/sub>)<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>W<sub>t<\/sub>: Production d&#039;\u00e9nergie th\u00e9orique (kWh)<\/li>\n<li>W<sub>un<\/sub>: Production d&#039;\u00e9lectricit\u00e9 quotidienne r\u00e9elle (kWh)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Coefficient de perte de poussi\u00e8re<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> \u03b1 = (W<sub>t<\/sub> \u2013 W<sub>un<\/sub>) \/ (W<sub>t<\/sub> \u00d7 t)<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>W<sub>t<\/sub>: Production d&#039;\u00e9nergie th\u00e9orique (kWh)<\/li>\n<li>W<sub>un<\/sub>: Production d&#039;\u00e9lectricit\u00e9 quotidienne r\u00e9elle (kWh)<\/li>\n<li>t : Dur\u00e9e d&#039;accumulation de poussi\u00e8re (heures)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-3151\" src=\"https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML.png\" alt=\"Formules de calcul des effets et intervalles de nettoyage des centrales photovolta\u00efques\" width=\"1200\" height=\"512\" srcset=\"https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML.png 1200w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML-300x128.png 300w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML-1024x437.png 1024w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML-768x328.png 768w, https:\/\/todos-china.com\/wp-content\/uploads\/2024\/11\/40807_2023_76_Fig16_HTML-18x8.png 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2>Fonction de cycle de nettoyage \u00e9conomique<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> F(t) = L(t) \u2013 C<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>L(t) : Perte de puissance due \u00e0 la poussi\u00e8re (valeur mon\u00e9taire)<\/li>\n<li>C : Co\u00fbt du nettoyage (valeur mon\u00e9taire)<\/li>\n<li>Calcul de la perte de puissance : L(t) = M<sub>l&#039;<\/sub> \u00d7 (n&#039; \/ n) \u00d7 (H \/ \u03b1)<\/li>\n<li>Calcul du co\u00fbt de nettoyage : C = M<sub>c<\/sub> \u00d7 N \u00d7 S<\/li>\n<\/ul>\n<\/li>\n<li><strong>Param\u00e8tres:<\/strong>\n<ul>\n<li>M<sub>l&#039;<\/sub>: Co\u00fbt par kWh<\/li>\n<li>n&#039;: Jours op\u00e9rationnels r\u00e9els<\/li>\n<li>n : Nombre total de jours op\u00e9rationnels<\/li>\n<li>H : Heures de production effectives<\/li>\n<li>\u03b1 : Coefficient de perte de poussi\u00e8re<\/li>\n<li>M<sub>c<\/sub>:Co\u00fbt de nettoyage au m\u00e8tre carr\u00e9<\/li>\n<li>N : Nombre de modules nettoy\u00e9s<\/li>\n<li>S : Surface par module (m\u00b2)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Point d&#039;\u00e9quilibre du nettoyage<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> Q<sub>faire le m\u00e9nage<\/sub> \u2013 Q<sub>sale<\/sub> = E<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>Q<sub>faire le m\u00e9nage<\/sub>: Puissance journali\u00e8re des modules propres (kWh)<\/li>\n<li>Q<sub>sale<\/sub>: Puissance journali\u00e8re des modules sales (kWh)<\/li>\n<li>E : Co\u00fbt du nettoyage<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Intervalle de nettoyage optimal<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> T = L \/ (h \u00d7 p \u00d7 f)<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>W : Perte de revenus due \u00e0 la salet\u00e9 par MW (valeur mon\u00e9taire)<\/li>\n<li>h : Heures de fonctionnement annuelles moyennes (heures)<\/li>\n<li>p : Taux tarifaire par kWh<\/li>\n<li>f : Co\u00fbt de nettoyage par MW<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2>Seuil de nettoyage \u00e9conomique<\/h2>\n<ul>\n<li><strong>Formule:<\/strong> M = M<sub>l&#039;<\/sub> \u00d7 (1 \/ \u03b1)<\/li>\n<li><strong>D\u00e9tails:<\/strong>\n<ul>\n<li>M<sub>l&#039;<\/sub>: Co\u00fbt par kWh<\/li>\n<li>\u03b1 : Coefficient de perte de poussi\u00e8re<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>L\u2019utilisation de ces formules permet une \u00e9valuation pr\u00e9cise des effets de nettoyage et aide \u00e0 \u00e9laborer des strat\u00e9gies de nettoyage efficaces pour am\u00e9liorer l\u2019efficacit\u00e9 et les r\u00e9sultats \u00e9conomiques des centrales photovolta\u00efques.<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>These key formulas help assess the cleaning impact and determine optimal cleaning intervals for photovoltaic power plants: Photovoltaic Module Power Generation Capacity Formula: Lp = 1 &#8211; (Wa \/ Wt) Details: Wt: Theoretical power generation (kWh) Wa: Actual daily power generation (kWh) Dust Loss Coefficient Formula: \u03b1 = (Wt &#8211; Wa) \/ (Wt \u00d7 t) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3151,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/posts\/3146"}],"collection":[{"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/comments?post=3146"}],"version-history":[{"count":0,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/posts\/3146\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/media\/3151"}],"wp:attachment":[{"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/media?parent=3146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/categories?post=3146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/todos-china.com\/fr\/wp-json\/wp\/v2\/tags?post=3146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}