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PPT |输电管廊数智化感知与风险预警关键技术及应用

  • 2026-05-08 19:02:23
PPT |输电管廊数智化感知与风险预警关键技术及应用

   PPT 

概述:

本文探讨了输电管廊数智化感知与风险预警关键技术的研究背景、典型场景、创新实践及未来展望,旨在通过先进传感技术提升电网安全稳定运行能力。


主要内容:

1. 研究背景

  • 国家战略需求
    :欧美日将传感及微系统列为重大创新方向。美国2024年《关键和新兴技术清单》强调能源领域传感技术;《瓦森纳协定》中传感器与激光器技术被严格限制。国家能源局提出加快智能传感技术研发,以提升自主可控能力。
  • 技术发展趋势
    :传统智能传感器集成微处理器与ASIC电路,具备数据处理功能。随着数字化和智能化发展,智能传感正向自学习、自诊断、自补偿方向演进,融合新型敏感材料、通信、微纳加工和人工智能技术。
  • 电网稳定控制挑战
    :2024年底我国新能源装机超12亿千瓦,渗透率超40%的区域电网将成为常态。新能源高占比引发快速波动性、低惯量、电压弱支撑等问题,传统互感器在宽频扰动和惯量精准量测方面性能不足,亟需新型传感技术支持。
  • 配用电负荷管理需求
    :亚毫秒级全景状态监测对需求侧灵活负荷资源调节至关重要。现有传感技术实时精准感知能力不足,难以满足高可靠响应需求,需借助新型传感技术提升广义负荷精准感知与自适应调节能力。
  • 输变电设备运维问题
    :近年来,输变电装备缺陷导致多起重大事故。复杂电磁场环境下,现有传感方法灵敏度低、响应慢、抗干扰差,无法支撑设备可靠运行,亟需提升缺陷辨识与故障定位能力。
  • 发展目标
    :提升对电网-设备-用户全环节的灵敏感知和实时观测能力,支撑新型电力系统安全稳定运行和新能源高效消纳。

2. 输电管廊典型场景

  • 场景一:电缆状态多维感知与诊断决策
    利用高频局放、光纤温度、红外测温等传感器实现高压隧道电缆状态全方位感知,结合带电检测、运行信息等多状态量进行智能诊断,支持电缆状态快速感知与预警。
  • 场景二:隧道环境全息感知与远程管控
    综合分析视频监控、温湿度、水位、有害气体等参量,实现电缆隧道运行环境快速感知,推送外部侵入、火灾、积水等风险预警信息至移动APP。
  • 场景三:电缆智能移动巡检与实时管控
    借助RFID电子标签、二维码标识,配合探测器和智能终端,确保高压电缆通道巡视质量,实现巡检轨迹展示与超周期自动预警。
  • 场景四:电缆故障快速定位与智能抢修
    部署分布式故障监测装置,实时监测故障电流及波形,基于多源系统数据实现故障精确定位与原因分析,提供后续处理方案和决策建议。

3. 创新实践

  • (1) 高性能隧穿磁电阻(TMR)器件与自供能TMR智能传感器
    TMR器件利用量子隧穿效应测量磁场,具有高灵敏、宽频带、低功耗优势。中国电科院研发的TMR磁敏元件磁噪声154pT/Hz1/2@1Hz,灵敏度400mV/N/Oe,达到国际领先水平。基于此研发的自取能TMR智能传感器,适用于电缆护层接地电流监测,冷启动电流≥1A/5A。
  • (2) 超灵敏磁电(ME)传感器件与传感器模组
    ME器件通过磁致伸缩层/压电层结构实现磁场测量与取能,具有超灵敏和谐振选频特性。中国电科院制备的磁电耦合系数达4297.3V/(cm·Oe),能量收集功率密度0.36mW·Oe-2·cm-3,研制的ME传感器模组工频抑制达60dB。
  • (3) 低功耗宽窄融合无线传感网与微源取能成套装置
    解决超低功耗无线传感网信号传输难题,研发μW级低功耗芯片及通信模组,支持≥3000个传感器接入,通信距离1km@470MHz或200m@2.4GHz。重点突破空间工频磁场取能、振动取能等技术,实现多源复合能量管理。
  • (4) 光载无线延伸覆盖技术
    针对输电通道狭长分布特征,利用光载无线技术实现射频信号低损耗远距离传输,采用1550nm大功率激光器为节点供能,降低能耗与复杂度。
  • (5) 高压电缆局部绝缘缺陷定位装置
    提出基于主动激励反射谱的检测方法,研制电缆局部绝缘缺陷定位装置,支持在线定位,提升潜伏性微小缺陷检测灵敏度。
  • (6) 输电管廊数智化感知与风险预警综合解决方案
    通过宽窄带自供能无线传感器、高可靠无线传感网络和边缘融合分析平台,实现接地电流、温湿度、气体等多参量感知数据采集与融合分析,支撑本体健康、运行状态、环境状态监测。
  • (7) 应用案例
    • 苏通1000kV特高压GIL管廊:覆盖2.2km,接入气体、水位、温湿度等传感器,支持感知数据分析与设备管控。
    • 福州220kV凤排线:部署宽窄融合接入节点和汇聚节点,覆盖600m隧道,实现防火门穿透覆盖增强。
    • 成都黄忠大道地下管廊:实现电缆护层接地电流多点分布式监测,测量结果准确有效,相比传统系统具有自取能、无线通信等优势。

4. 未来展望

未来需在先进敏感材料器件、网络安全连接、边缘群智分析、融合可靠设计等方面取得突破,研发高准确度、高可靠性、微小型化、低功耗、自供能传感器及云边协同智慧诊断平台,形成自主可控产业链,构建输电场景智慧化感知体系,服务新型电力系统建设。

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  1. CONNECT:[ UseTime:0.000542s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000746s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000342s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000279s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000514s ]
  6. SELECT * FROM `set` [ RunTime:0.000248s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000560s ]
  8. SELECT * FROM `article` WHERE `id` = 502429 LIMIT 1 [ RunTime:0.000518s ]
  9. UPDATE `article` SET `lasttime` = 1778292473 WHERE `id` = 502429 [ RunTime:0.009551s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.002229s ]
  11. SELECT * FROM `article` WHERE `id` < 502429 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000648s ]
  12. SELECT * FROM `article` WHERE `id` > 502429 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000567s ]
  13. SELECT * FROM `article` WHERE `id` < 502429 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000737s ]
  14. SELECT * FROM `article` WHERE `id` < 502429 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002086s ]
  15. SELECT * FROM `article` WHERE `id` < 502429 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.004354s ]
0.092854s