Online motor monitoring apparatus and monitoring method thereof

Abstract

The invention discloses an online motor monitoring apparatus which includes a data measuring module (10), a data processing module (20), a data acquisition module (30), an upper computer monitoring platform (40), a drive circuit module (50) and a power circuit module (60) which are successively connected. The monitoring method includes acquiring motor parameters by using the data measuring module, the motor parameters undergoing the data processing module, the data acquisition module performing high-speed acquisition on the motor parameters, at the same time transmitting the acquired data to the upper computer monitoring platform so as to process, display, store and playback the motor parameters and performs alarm shutdown, thus achieving man-machine interaction. According to the invention, the apparatus improves traditional detection methods by utilizing online monitoring technology, and can monitor the operation states of the motor in a more accurate and real-time manner. The apparatus has great values in control strategy research and fault analysis of a motor speed regulation system. The online motor monitoring apparatus and fault diagnosis inevitably hold the key to future development.

Description

technical field [0001] The invention relates to the technical field of motor measurement and control, in particular to a motor online monitoring device and a method thereof. Background technique [0002] With the continuous development of power electronics technology and automation control technology, motors have been widely used in industrial production and household appliances, and are gradually showing their advantages in market competition. Traditional on-line motor monitoring devices mostly use primitive instruments such as ammeters, voltmeters, and power meters for measurement, and use manual readings to measure, record, and analyze data. This not only has redundant hardware, messy systems, but also extremely Inconvenient, what's more, the reading error is large, and the test result is inaccurate. In some occasions, it is necessary to monitor various parameters of the motor, which will inevitably increase the use of various measuring instruments and the investment of ...

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Problems solved by technology

[0003] The present invention proposes a motor online monitoring device and method, through real-time and dynamic monitoring of torque, rotational speed, current of each phase, voltage, temperature, input and output power and efficiency, and alarming and shutdown of overvoltage, overcurrent and overheating , to solve the technical problems in the prior art that the monitoring parameters cannot be quantitatively analyzed and the motor operating status and faults cannot be grasped more accurately and in real time

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