换流阀空冷器最小交流电压平衡状态红外监测

Infrared monitoring of minimum AC voltage balance state of converter valve air cooler

换流阀空冷器的应用十分广泛,若该元件运行状态是安全且稳定的,则高压直流输电就可稳定运行,为此提出基于多源异构数据融合的换流阀空冷器最小交流电压平衡状态红外监测方法。提前对红外传感器数据实施循环去噪,直到数据中无噪声数据为止,再融合多源异构数据,降低数据量以及空间维度,计算出红外图像的温度场分布,设定出对应阈值,与温度场阈值比较,判断电压状态是否处于平衡状态,实现换流阀空冷器最小交流电压平衡状态红外监测。实验结果表明,所提方法的红外监测精准以及监测图像去噪效果好。

The converter valve air cooler is widely used.If the operation state of the element is safe and stable,the HVDC transmission can operate stably.Therefore,an infrared monitoring method for the minimum AC voltage balance state of the converter valve air cooler based on multi source heterogeneous data fusion is proposed in this paper.The infrared sensor data is denoised in advance until there is no noise data in the data,and the infrared image of the temperature field distribution is calculated fusing with multi source heterogeneous data from multiple sources,reducing the data volume and spatial dimension,setting the corresponding threshold,and comparing it with the temperature field threshold to judge whether the voltage state is in a balanced state,realizing infrared monitoring of the minimum AC voltage balance state of the converter valve air cooler.The experimental results show that the proposed method is accurate in infrared measurement as well as good in monitoring image denoising.