基于光纤传感的农村分布式综合能源系统终端设备状态实时监测

Real Time Monitoring of Terminal Equipment Status in Rural Distributed Comprehensive Energy System Based on Fiber Optic Sensing

受农村地区环境复杂气候多变的影响,终端设备容易出现温度异常情况。在传感器采集和信号传输过程中,电磁干扰、传输信号衰减等因素会干扰温度信号真实频率特征,导致其带有噪声,且难以准确识别异常频率成分,无法精准监测温度异常状态。为此,提出基于光纤传感的农村分布式综合能源系统终端设备状态实时监测方法。在终端设备中通过部署光纤传感器,利用光纤传感技术进行分离处理可以有效降低干扰因素对真实温度信号的影响,获取终端设备的关键温度参数,使用光纤光栅动态信号处理技术,对以上参数进行傅里叶级数分解,避免噪声的干扰对温度异常监测的影响,分析终端设备的周期性、瞬变性等动态信息,并对上述信息实时洞察细微变化,获取设备当前运行状态温度,实现农村分布式综合能源系统终端设备状态的实时监测。利用FlexSim软件构建晴朗、阴雨、雷暴、大风4种模拟实验环境,收集农村分布式综合能源系统终端设备的实际温度数据,对风力发电机温度进行监测,在4种天气条件下,设计方法更接近实际值,证明设计方法能够有效抵御复杂多变天气的影响,实现设备温度的精准监测。

The environmental conditions in rural areas are complex and variable,and the climate has an impact,making terminal equipment prone to temperature anomalies.During the process of sensor acquisition and signal transmission,temperature signals are affected by factors such as electromagnetic interference and transmission signal attenuation,resulting in noise and interference with their true frequency characteristics.It is difficult to accurately identify abnormal frequency components and monitor temperature anomalies accurately.To this end,a real-time monitoring method for the terminal equipment status of rural distributed comprehensive energy systems based on fiber optic sensing is proposed.By deploying fiber optic sensors in terminal devices and utilizing fiber optic sensing technology,separation and processing can effectively reduce the impact of these interferences on the real temperature signal,obtain the key temperature parameters of the terminal device,use fiber optic grating dynamic signal processing technology to perform Fourier series decomposition on the above parameters,avoid the impact of noise interference on temperature anomaly monitoring,analyze the periodic and transient dynamic information of the terminal device,and observe subtle changes in real-time to obtain the current operating temperature of the device,achieving real-time monitoring of the terminal device status of the rural distributed comprehensive energy source system.Using FlexSim software to construct four simulated experimental environments:sunny,rainy,thunderstorm,and strong wind,collect actual temperature data of rural distributed comprehensive energy system terminal equipment,and monitor the temperature of wind turbines.Under the four weather conditions,the design method is closer to the actual value,proving that the design method can effectively resist the influence of complex and variable weather,and achieve accurate monitoring of equipment temperature.