Non-invasive electrical efficiency on-line detection device and control method thereof

Abstract

The invention relates to a non-invasive electrical efficiency on-line detection device and a control method thereof, and the non-invasive electrical efficiency on-line detection device comprises a sensor unit, a signal acquiring and processing unit and a communication unit, wherein the sensor unit converts line current and line voltage signals of a motor into weak voltage signals; the signal acquiring and processing unit carries out digitization on the voltage signals obtained from the sensor unit and transmits the monitoring result obtained by operation process to the communication unit; and the communication unit transmits the received data output by the signal acquiring and processing unit to a monitoring computer by wireless network. The control method comprises the steps of initializing in an electrified manner, collecting original data, calculating the monitoring parameters of each motor, transmitting the calculation result of the monitoring parameters to a communication circuit board, modifying the configuration parameters of motors, judging whether the original data frame is received or not, if so, collecting and transmitting corresponding original data, otherwise, going back to the step of collecting the original data, and performing circularly. The invention can build a perfect on-line motor state monitoring system rapidly, the installation is simple, and the workload required in installing the monitoring system is reduced.

Description

technical field [0001] The invention relates to the technical field of motor state monitoring, in particular to a non-invasive online motor efficiency detection device and a control method thereof. Background technique [0002] Motors provide power for various equipment such as fans, pumps, compressors, and machine tools. They are indispensable power-driven equipment in industrial production and play an important role in industrial automation systems. Motors are also the main energy-consuming equipment in industrial production. However, due to reasons such as backward motor technology, low energy efficiency, mismatch between operating load and rated load, operation with faults, and lack of advanced energy management methods, the operating efficiency of motors in my country's industrial production is currently On the low side and serious energy waste, the motor system has huge potential for energy saving. Therefore, the research and development of low-cost motor on-line monit...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of motor state monitoring in the prior art, such as the inability to provide sufficient and effective motor operating data, the technical problem to be solved by the present invention is to provide a method that can realize online monitoring of the motor operating state and upload the monitoring data to a remote monitoring computer. , and support remote monitoring computer control operation non-intrusive motor efficiency online detection device and control method thereof

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