Three-phase induction motors (TIMs) are present in most industrial processes, accounting for more than 60% of the energy consumption in industry. Despite their importance in the productive sector, few motors are properly monitored, mainly due to the high cost of the monitoring equipment and the invasiveness in their installation. This paper presents the implementation and deployment of an industrial wireless sensor network (WSN) to monitor three-phase induction motors. Embedded systems were developed to acquire signals of current and voltage from sensors installed in the motors' terminals, perform local processing to estimate torque and efficiency, and transmit the information through the WSN. The method used to estimate the variables is based on the air-gap torque method. Before the deployment in the industry, experiments were performed to validate the system in laboratory. Finally, the system was employed in a real industrial environment, where different analyses and diagnosis of three motors running were performed. Using the proposed system, the efficiency versus load curves of the motors could be obtained continuously, and an energy loss analysis due to the oversizing of the motors was performed.
Implementation and Deployment of an Intelligent Industrial Wireless System for Induction Motor Monitoring
Contributed by the Dynamic Systems Division of ASME for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received July 18, 2016; final manuscript received June 21, 2017; published online August 9, 2017. Assoc. Editor: Heikki Handroos.
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Adissi, M. O., Lima Filho, A. C., Gomes, R. D., Silva, D. M. G. B., and Belo, F. A. (August 9, 2017). "Implementation and Deployment of an Intelligent Industrial Wireless System for Induction Motor Monitoring." ASME. J. Dyn. Sys., Meas., Control. December 2017; 139(12): 124502. https://doi.org/10.1115/1.4037167
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