配電線路抗飽和等效模型及實物化方法
發(fā)布時間:2018-03-18 15:14
本文選題:配電網(wǎng) 切入點:線路模型 出處:《電力自動化設(shè)備》2017年05期 論文類型:期刊論文
【摘要】:配電線路是配電網(wǎng)系統(tǒng)重要的元件,在盡量滿足分布特性的情況下,將其集總實物化是構(gòu)建配電網(wǎng)動態(tài)模擬平臺的關(guān)鍵環(huán)節(jié)。以Π型線路模型為基礎(chǔ),提出配電線路等效模型實物化方法。所提模型涵蓋了線路電阻、相間電容、對地電容及線路間自感和互感;在分析各種電感模型的優(yōu)缺點后,提出了空心螺線環(huán)形結(jié)構(gòu),不僅可以抗電感飽和,還可將磁通封閉在線圈內(nèi)部,抑制磁場泄漏。最后通過實驗對線路模型的磁場封閉性和暫態(tài)變化特性進(jìn)行驗證,表明所提模型可用于模擬真實配電網(wǎng)線路。
[Abstract]:Distribution line is an important component of distribution network system. Under the condition of satisfying the distribution characteristics as far as possible, it is the key link to construct the dynamic simulation platform of distribution network. The physical method of equivalent model of distribution line is proposed. The model includes line resistance, interphase capacitance, ground capacitance, self-inductance and mutual inductance between lines. After analyzing the advantages and disadvantages of various inductance models, the hollow spiral ring structure is proposed. It can not only resist the inductance saturation, but also seal the magnetic flux inside the coil to suppress the leakage of the magnetic field. Finally, the magnetic field closure and transient characteristics of the circuit model are verified by experiments. It is shown that the proposed model can be used to simulate the real distribution network.
【作者單位】: 國網(wǎng)福建省電力有限公司電力科學(xué)研究院;福建省高供電可靠性配電技術(shù)企業(yè)重點實驗室;福州大學(xué)電氣工程與自動化學(xué)院;
【基金】:福建省自然科學(xué)基金資助項目(2016J01218) 福建省教育廳中青年教師教育科研項目(JA15086) 國家電網(wǎng)公司科技項目(52130416000D)~~
【分類號】:TM75
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本文編號:1630134
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