Motor Energy Management Based on Non-Intrusive Monitoring Technology and Wireless Sensor Networks

Abstract

This paper proposes a motor energy management architecture, which is composed of a data acquisition platform, a condition monitoring platform, an energy consumption and saving analysis platform, a communication platform, and a motor energy data management platform. Under the guidance of the architecture, an in-service motor monitoring and energy management system is developed based on non intrusive monitoring technologies and wireless sensor networks. The system has two subsystems: a data acquiring and analysis subsystem, and a condition monitoring and energy management subsystem. To evaluate the in-service motor energy usage, motor efficiency estimation methods are discussed. And a motor monitoring front-end device is developed with the implement of the methods introduced. The device is designed as three separate units, including a sensing unit, a processing unit, and a communication unit. Such a flexible design could meet various requirements in the application. The wireless sensor network is a self-organized network with dynamic topology. As a lowcost, robust, and reliable communication network, it is used to connect the front-end devices with the central supervisory station. A WSN node is designed and implemented for the inservice motor monitoring system, which can also be used as a unit of the front-end device. The laboratory tests and plant application show that the system can help the plant managers to improve motor-driven systems.