基于红外图像与深度学习的EMS低压设备实时断面状态校核方法

Real-time Section State Verification Method of Energy Management System Low Voltage Equipment Based on Infrared Image and Deep Learning

  • 摘要: 能源管理系统(energy management system,EMS)低压设备实时断面状态校核,是电力设备维护中的难点。基于红外图像与深度学习的EMS低压设备实时断面状态校核方法,利用种子区域生长法分割红外焦平面图像中,EMS低压设备实时断面的红色分量与绿色分量,确定EMS低压设备异常区域;提取异常区域目标形状的不变矩,结合EMS低压设备支路开断前后各支路的有功功率之差,作为实时断面状态校核的特征向量;构建基于深度神经网络的直流潮流模型,在该模型内输入特征向量,输出实时断面状态潮流计算结果,分析异常区域实时断面状态潮流是否越限,完成实时断面状态校核。实验证明:该方法可有效确定EMS低压设备的异常区域;该方法可精准校核设备实时断面状态的潮流,确保设备检修的安全性;应用该方法后,可有效提升线路合格率与电压合格率。

     

    Abstract: Real-time cross-sectional state verification of low-voltage equipment in an energy management system (EMS) is difficult in the maintenance of power equipment. Based on infrared images and deep learning, a real-time cross-sectional state verification method for low-voltage EMS equipment was proposed. The seed region growth method segments the red and green components of the real-time cross-section of the EMS low-voltage equipment in the infrared focal plane image to determine the abnormal area of the EMS low-voltage equipment. The invariant moment of the target shape in the abnormal area is extracted, and the difference in the active power of each branch before and after the disconnection of the EMS low-voltage equipment branch is used as the feature vector of the real-time section state check. A DC power flow model based on a deep neural network is constructed. The feature vector was input into the model, and the real-time section-state power flow calculation results were the output. The real-time section state power flow in abnormal areas was analyzed to determine if it was outside the limit, and a real-time section state check was completed. Experiments show that this method can determine the abnormal area of EMS low-voltage equipment. In addition, this method can accurately check the power flow of the real-time section state of the equipment to ensure the safety of equipment maintenance. Applying this method can improve the line qualification rate and voltage qualification rate.

     

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