随着物联网技术的发展,如何将物联网技术与非侵入式电力设备运行状态监测技术相结合成为当前研究热点之一。为了探索基于物联网技术的电气设备运行状态监测新模式,以感应电机定子绕组温度的非侵入式在线监测为出发点,首先提出了一种基于自适应法和最小二乘法的电机定子绕组温度辨识方法,并结合当前物联网技术的发展,设计了一种基于全过程监督技术的感应电机全寿命周期监督定子温度监测系统。以1台5.5 kW感应电机为例进行试验验证,结果表明该系统具有较强的鲁棒性。所提出的理念和技术可以为其他大型电力设备的状态监测提供重要参考和技术支撑。

With the development of the internet of things technology, how to combine the internet of things technology with nonintrusive power equipment operation monitoring technology have become a hot research topic. In order to explore a new mode of monitoring the running state of electrical equipment based on internet of things technology, the nonintrusive online monitoring of the stator winding temperature of induction motor was taken as the starting point. Firstly, a method of identifying the stator winding temperature of induction motor based on adaptive method and least squares method was proposed. Combined with the development of the current internet of things technology, a life cycle monitoring system for induction motor stator winding temperature based on whole process monitoring technology was designed. The stator temperature monitoring system based on induction motor life cycle monitoring was tested on a 5.5 kW induction motor. The results show that the system has strong robustness. The concept and technology presented can provide important reference and technical support for condition monitoring of other large power equipment.

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