本文選題：輸電線路　切入點(diǎn)：地線取能　出處：《電網(wǎng)技術(shù)》2015年07期

【摘要】：地線取能是輸電線路在線監(jiān)測(cè)裝置較為理想的供電方式,其關(guān)鍵技術(shù)問題之一是如何獲得足夠的功率。取能功率的最大化必須以其等效電路為基礎(chǔ)進(jìn)行阻抗匹配設(shè)計(jì)。同時(shí),取能電路輸出電壓的穩(wěn)定性、可靠性也必須以其等效電路參數(shù)為基礎(chǔ)。為此,以四川電力公司所轄的某220k V架空輸電線路為例,對(duì)地線取能等效電路進(jìn)行推導(dǎo),并對(duì)其參數(shù)進(jìn)行簡(jiǎn)化,在此基礎(chǔ)上對(duì)地線最大取能功率進(jìn)行計(jì)算與評(píng)估。此外,結(jié)合EMTP-ATP仿真對(duì)相關(guān)因素對(duì)等效電路的影響進(jìn)行分析,供取能設(shè)計(jì)參考。最后,根據(jù)現(xiàn)場(chǎng)測(cè)量結(jié)果驗(yàn)證等效電路參數(shù)的理論計(jì)算結(jié)果。
[Abstract]:Ground line energy acquisition is an ideal power supply method for on-line monitoring device of transmission line. One of the key technical problems is how to get enough power.The maximum power must be based on the equivalent circuit for impedance matching design.At the same time, the stability and reliability of output voltage must be based on the equivalent circuit parameters.Therefore, taking a 220 kV overhead transmission line under the jurisdiction of Sichuan Electric Power Company as an example, the equivalent circuit for ground line energy acquisition is deduced, and its parameters are simplified. On this basis, the maximum energy acquisition power of ground wire is calculated and evaluated.In addition, the influence of related factors on the equivalent circuit is analyzed by EMTP-ATP simulation, which can be used as a reference for energy design.Finally, the theoretical calculation results of equivalent circuit parameters are verified according to the field measurement results.
【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));四川省電力科學(xué)研究院;
【基金】：國(guó)家創(chuàng)新研究群體基金項(xiàng)目(51321063)~~
【分類號(hào)】：TM75

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本文編號(hào)：1724589