基于ARM-DSP的10kV配网接地状态检测装置开发研究

发布时间：2017-12-30 18:06

  本文关键词：基于ARM-DSP的10kV配网接地状态检测装置开发研究　出处：《电气应用》2016年23期 　论文类型：期刊论文

  更多相关文章： 配网检修 接地线 信号注入 接地状态检测 配网自动化 带地线合闸

【摘要】：针对10 kV配网线路检修之后合闸送电时易发生接地事故,开发了基于DSP2812和ARM架构的接地线状态检测装置。装置采用DSP2812作为核心,并搭载高速ADC采样芯片及ARM智能芯片,设计了基于Android的嵌入式检测界面,可实现线路多种参数输入,具有多种友好人机交互功能。采用Boost升压+全桥逆变的技术方法产生信号源,提出基于直接信号注入式的检测方案,基于此通过向线路注入特定频率检测信号,利用FFT算法进行有效分解和提取,依据阈值电流和汇总的经验数据,可有效检测多种接地状态,包括三相短路、两相短路和单相短路接地及相间短路等,在技术上有效防止带地线合闸恶性事故的发生,装置具有测量线性度好、准确度高、携带方便、操作简单、成本低且易推广等优点,可为配网检修部门提供一定的借鉴和参考。
[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.

【作者单位】： 广东电网有限责任公司肇庆供电局;华南理工大学电力学院;
【基金】：中国南方电网科技项目资助(K-GD2014-204) 国家自然科学基金项目(51177051,51477055)
【分类号】：TM862;TM755
【正文快照】： 0引言 1 0 k V配网线路在检修改造完成之后,在合闸送电之前,需要对线路是否存在接地线进行检查,而对于有些接地比较隐蔽的情况,如线路通过细铁丝直接与杆塔连接接地,这种情况很难察觉出来,容易发生带地线合闸送电这一恶性事故,因此,检测接地线,特别是对于临时的挂接地线,显得，

本文编号：1355844