本文關(guān)鍵詞：基于ARM-DSP的10kV配網(wǎng)接地狀態(tài)檢測(cè)裝置開發(fā)研究　出處：《電氣應(yīng)用》2016年23期 　論文類型：期刊論文

  更多相關(guān)文章： 配網(wǎng)檢修 接地線 信號(hào)注入 接地狀態(tài)檢測(cè) 配網(wǎng)自動(dòng)化 帶地線合閘

【摘要】：針對(duì)10 kV配網(wǎng)線路檢修之后合閘送電時(shí)易發(fā)生接地事故,開發(fā)了基于DSP2812和ARM架構(gòu)的接地線狀態(tài)檢測(cè)裝置。裝置采用DSP2812作為核心,并搭載高速ADC采樣芯片及ARM智能芯片,設(shè)計(jì)了基于Android的嵌入式檢測(cè)界面,可實(shí)現(xiàn)線路多種參數(shù)輸入,具有多種友好人機(jī)交互功能。采用Boost升壓+全橋逆變的技術(shù)方法產(chǎn)生信號(hào)源,提出基于直接信號(hào)注入式的檢測(cè)方案,基于此通過向線路注入特定頻率檢測(cè)信號(hào),利用FFT算法進(jìn)行有效分解和提取,依據(jù)閾值電流和匯總的經(jīng)驗(yàn)數(shù)據(jù),可有效檢測(cè)多種接地狀態(tài),包括三相短路、兩相短路和單相短路接地及相間短路等,在技術(shù)上有效防止帶地線合閘惡性事故的發(fā)生,裝置具有測(cè)量線性度好、準(zhǔn)確度高、攜帶方便、操作簡(jiǎn)單、成本低且易推廣等優(yōu)點(diǎn),可為配網(wǎng)檢修部門提供一定的借鑒和參考。
[Abstract]:After 10 kV distribution line maintenance switch on power grounding accident prone, developed the ground state detection device based on ARM and DSP2812. The device uses DSP2812 as the core, and is equipped with high-speed ADC chip and ARM smart chip, designed the embedded test interface based on Android, can realize the multi parameter input circuit and with a variety of friendly man-machine interactive function. With the methods of Boost DC + full bridge inverter generates a signal source, the proposed detection scheme is directly injected signal based on the detection signal by injecting specific frequency to the line based on the effective decomposition and extraction by FFT algorithm, based on the summary of experience and data threshold current, which can effectively detect a variety of ground state, including three-phase short-circuit, two-phase short circuit and single-phase short circuit grounding and short, technically effective to prevent accidents off ground hair The device has the advantages of high linearity, high accuracy, easy to carry, simple operation, low cost and easy popularization. It can provide some references for the maintenance department of distribution network.

【作者單位】： 廣東電網(wǎng)有限責(zé)任公司肇慶供電局;華南理工大學(xué)電力學(xué)院;
【基金】：中國(guó)南方電網(wǎng)科技項(xiàng)目資助(K-GD2014-204) 國(guó)家自然科學(xué)基金項(xiàng)目(51177051,51477055)
【分類號(hào)】：TM862;TM755
【正文快照】： 0引言 1 0 k V配網(wǎng)線路在檢修改造完成之后,在合閘送電之前,需要對(duì)線路是否存在接地線進(jìn)行檢查,而對(duì)于有些接地比較隱蔽的情況,如線路通過細(xì)鐵絲直接與桿塔連接接地,這種情況很難察覺出來,容易發(fā)生帶地線合閘送電這一惡性事故,因此,檢測(cè)接地線,特別是對(duì)于臨時(shí)的掛接地線,顯得，

本文編號(hào)：1355844