考慮老化進(jìn)程對(duì)熱參數(shù)影響的IGBT模塊壽命評(píng)估
[Abstract]:The insulated gate bipolar transistor (insulated gate bipolar transistor,IGBT) module is one of the weakest links in the wind power conversion system, and its accurate life and reliability evaluation is particularly important for the safe operation of the wind power system. However, the current IGBT module life evaluation model mainly uses the transient thermal resistance curve based on the data manual or the thermal model of the initial test results, and does not consider the influence of the aging process of the IGBT module on the thermal parameters. In this paper, a life evaluation model of IGBT module considering the influence of aging process on thermal parameters is proposed. The model can take into account the increase of thermal load and the decrease of life due to the increase of thermal parameters during aging, and improve the accuracy of life evaluation. Firstly, the influence of aging process on thermal parameters is analyzed theoretically and experimentally, and the life evaluation model of IGBT module considering the influence of aging process is put forward, secondly, the difference between this model and existing life models is compared and analyzed. Finally, taking the actual wind farm as an example, the module life consumption considering the influence of aging in different time scales is further analyzed.
【作者單位】: 輸配電裝備及系統(tǒng)安全與新技術(shù)國(guó)家重點(diǎn)實(shí)驗(yàn)室(重慶大學(xué));
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(51477019) 國(guó)家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃項(xiàng)目(973項(xiàng)目)(2012CB25200) 中央高;究蒲袠I(yè)務(wù)費(fèi)項(xiàng)目(106112015CDJXY150004)~~
【分類(lèi)號(hào)】:TN322.8
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