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高寒区机载电力巡线光电稳定吊舱系统设计及应用

, PP. 200-208

Keywords: 光电技术,陀螺稳定吊舱,直升机电力巡线,架空输电线路

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Abstract:

为实现500kV架空输电线路自动化巡检,设计制造了适合于高纬度寒区应用的机载电力巡线光电稳定吊舱系统。根据我国寒区电力巡检特点及任务,确定了系统主要技术参数;根据目标最小分辨率设计了光学成像系统;采用了主动式陀螺稳定技术、被动式机械减振和电子稳像技术保证了系统的高稳定精度,采用三闭环结构提高了系统的控制带宽;采用抗低温设计保证系统的低温工作性能。系统稳定精度测试及寒区外场架空输电线路巡查试验结果表明,机载电力巡线光电稳定吊舱系统稳定精度优于30μrad,80m距离内可清晰识别销针、R/M销等微小零件,其80m目标最小分辨率优于2mm;系统满足我国寒区冬季电力巡线应用要求,高纬度和低温环境下(-40℃)应用优势明显。测试和实验结果验证了高寒区机载电力巡线光电稳定吊舱系统设计的正确性和合理性。

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