Control method of intelligent low-pressure drawer unit system

Abstract

The invention discloses a control method of an intelligent low-pressure drawer unit system. The control method is characterized in that a servo motor is controlled by an infrared manner to rotate clockwise and anticlockwise according to the single-chip microcomputer principle, so as to keep a drawer unit in the existing and exiting state, and the drawer running position is accurately positioned and monitored; in case of power failure or electrical accident, a backup power supply is put into use, a single-chip microcomputer controls the servo motor to rotate anticlockwise and a drawer is automatically ejected out to reach the original position, so as to realize full-automatic intelligent control; the drawer working information can also be fed back to a remote control terminal, thus the failure information can be timely found out, and the drawer can be controlled to exist and exit through a background remote terminal. With the adoption of the control method of the intelligent low-pressure drawer unit system, the drawer unit can freely exist and exit; the motor-based control mode is carried out, the motor lead-screw driving is selected as the main process, the linear motion is performed, thus the fit clearance is small, and little shaking is caused; the automatic driving avoids forced operation, and therefore, the service life of the drawer unit is also prolonged; the remote control function is realized through background remote terminal control software.

Description

technical field [0001] The invention relates to the field of 0.4KV low-voltage intelligent MDmax, MNS and other low-voltage switch cabinets, in particular to an intelligent low-voltage drawer unit system control method. Background technique [0002] In the low-voltage power distribution system, drawer cabinets are widely used. At present, the drawer units that appear on the market are mainly operated manually. The unit shakes a lot, and the brute force operation often damages the drawer unit and cannot work normally. When a fault occurs, the primary circuit is still connected to the drawer, and the drawer unit cannot be automatically ejected, which increases the risk of secondary accidents. The use of the drawer unit and All maintenance needs to be carried out manually on site, and background control cannot be performed, which increases the cost of on-site management. [0003] Such as figure 1 As shown, in the current drawer control method in the prior art, the drawer unit...

AI Technical Summary

Problems solved by technology

[0002] In the low-voltage power distribution system, drawer cabinets are widely used. At present, the drawer units that appear on the market are mainly operated manually. The unit shakes a lot, and the brute force operation often damages the drawer unit and cannot work normally. When a fault occurs, the primary circuit is still connected to the drawer, and the drawer unit cannot be automatically ejected, which increases the risk of secondary accidents. The use of the drawer unit and All maintenance needs to be carried out manually on site, and background control cannot be performed, which increases the cost of on-site management

[0003] like figure 1 As shown, in the current drawer control method in the prior art, the drawer unit is mainly operated manually during the entry and exit links. After the drawer is manually inserted into the cabinet, the drawer and the cabinet body realize a one-time plug-in connection. The upper end of the circuit breaker is charged. When testing the drawer unit, operate the drawer through the handle, and place the circuit breaker in the QF test position for test position operation. If the test position is normal, you can operate the drawer with the handle again to close the circuit breaker and open the circuit. If it is not working normally or the experimental position is not working normally, it is necessary to manually withdraw the drawer and separate it from the primary plug-in to the QF isolation position, then take out the drawer for maintenance. If there is a power failure or electrical accident, the circuit breaker is in In the working position, the primary circuit is still connected to the primary plug-in, and the drawer unit cannot be automatically ejected, which increases the risk of secondary accidents virtually. The entire operation process of the drawer unit is manually operated, which takes a lot of labor. It is easy to cause damage to the plug-ins inside the drawer, and this control method will gradually be replaced by an intelligent automation system

Images