【摘要】：高壓電纜運行時將在地下鋼筋混凝土排管中產(chǎn)生銅耗和鐵耗。而這些損耗,包括電纜本身的損耗,不僅浪費了電能,同時還將影響電纜和排管的溫度場分布。為解決傳輸線電流在傳統(tǒng)鋼筋混凝土地下電纜排管中產(chǎn)生渦流損耗而造成的電能浪費問題,論文將有限元數(shù)值分析技術應用于地下復雜環(huán)境渦流—溫度場的分析與計算。提出了地下電纜排管渦流—溫度耦合場的三維有限元模型,兼顧求解速度和計算精度需求的剖分方法以及多物理耦合場的迭代求解方法。論文通過對幾種典型鋼筋混凝土結構地下電纜排管的渦流場與溫度場的數(shù)值分析,得到了在不同工況下典型鋼筋混凝土結構地下電纜排管中金屬構件的渦流分布,整個場域的溫度場分布和諧態(tài)工況下的電纜線芯溫度。并據(jù)此提出了玻璃纖維筋(Glass Fiber Reinforced Polymer,GFRP)代替?zhèn)鹘y(tǒng)鋼筋的解決方案,通過數(shù)值仿真計算了替換后電纜排管中溫度場的分布,進而從技術角度論證方案的可行性。論文對比分析了以實際工程為依托的兩種典型結構電纜排管的技術特點和經(jīng)濟性能。數(shù)值分析結果表明,基于玻璃纖維筋電纜排管的替代方案在降低渦流損耗的同時具有更好的經(jīng)濟效益。
[Abstract]:Copper and iron consumption will be produced in underground reinforced concrete pipe arrangement when high voltage cable is running. These losses, including the loss of the cable itself, not only waste electricity, but also affect the temperature field distribution of the cable and the arrangement pipe. In order to solve the problem of power waste caused by vortex loss caused by transmission line current in traditional reinforced concrete underground cable pipe arrangement, the finite element numerical analysis technique is applied to the analysis and calculation of vortex temperature field in underground complex environment. A three-dimensional finite element model of vortex-temperature coupling field for underground cable arrangement is proposed, which takes into account the requirements of solving speed and calculation accuracy, and an iterative method for solving multi-physical coupling field. Based on the numerical analysis of the Eddy current field and temperature field of several typical reinforced concrete structure underground cable pipes, the Eddy current distribution of metal components in the underground cable arrangement pipe of typical reinforced concrete structure under different working conditions, the temperature field distribution of the whole field and the cable core temperature under harmonic condition are obtained in this paper. Based on this, the solution of replacing the traditional steel bar with glass fiber reinforcement (Glass Fiber Reinforced Polymer,GFRP) is put forward, and the distribution of temperature field in the replaced cable pipe is calculated by numerical simulation, and the feasibility of the scheme is demonstrated from the technical point of view. In this paper, the technical characteristics and economic performance of two typical cable arrangement pipes based on practical engineering are compared and analyzed. The results of numerical analysis show that the alternative scheme based on glass fiber reinforced cable arrangement has better economic benefits while reducing vortex loss.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TM75

【相似文獻】

相關期刊論文 前10條

1 郭睿;;淺析電纜排管工程施工要點[J];科技創(chuàng)新與應用;2012年06期

2 宋迎;;電纜排管的施工與運行管理[J];科技傳播;2012年20期

3 黃莉;;城市道路中電纜排管敷設技術要點探討[J];科技傳播;2013年23期

4 陳忠平;董長富;;非開挖鋪設電纜排管技術[J];上海電力;2003年02期

5 楊偉航;電力電纜排管敷設在城市規(guī)劃道路上的應用[J];廣東輸電與變電技術;2005年04期

6 曹杰;王化山;;淺談電力電纜排管的選用[J];中國電力教育;2009年S2期

7 耿明生;趙勇;;電纜排管敷設的施工與運行管理[J];山西科技;2010年01期

8 丁一波;穆松;王玖凱;;基于灰色關聯(lián)度的電纜排管工程施工質量評價[J];華東電力;2010年04期

9 林楊;;電纜排管敷設在工程中的應用[J];紅水河;2011年05期

10 俞瑾華;周韞捷;;電力電纜排管合理敷設長度的遺傳算法[J];華東電力;2012年05期

相關重要報紙文章 前1條

1 張傳龍;管線埋設有學問[N];中國房地產(chǎn)報;2003年

相關碩士學位論文 前1條

1 張博;鋼筋混凝土電纜排管的技術經(jīng)濟性分析與優(yōu)化設計[D];浙江大學;2017年

，

本文編號：2497921