Double-screw synchronization control method based on virtual main shaft

A technology of virtual spindle and synchronous control, which is applied to controllers with specific characteristics, electric controllers, etc., can solve problems such as system oscillation, poor synchronization reliability, and torque difference, achieve uniform force, avoid system oscillation, and improve synchronization The effect of precision

Active Publication Date: 2017-08-29
WUHAN BINHU ELECTRONICS
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Problems solved by technology

This method realizes the rapid and high-precision erection requirements of the phased array radar array, and solves the problem of lagging of the slave axis in the synchronous drive of the screw, large differences in the positions or torques of the two screw screws, and system oscillation caused by too fast adjustment. The synchronization is reliable The problem of poor stability has broad application prospects in this field

Method used

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  • Double-screw synchronization control method based on virtual main shaft
  • Double-screw synchronization control method based on virtual main shaft
  • Double-screw synchronization control method based on virtual main shaft

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings.

[0033] Such as figure 1 Shown is the overall schematic diagram of the synchronous control system. The radar front adopts a double screw drive mechanism, which is driven by two sets of servo motors. The output torque of the motors is amplified through the deceleration of their respective reducers, and the two screw screws are driven to move synchronously. Drive the antenna array to flip to the working position. In the present invention, the radar antenna weighs several tons, and requires high precision of the antenna front. Therefore, it is not allowed to cause structural deformation and distortion of the antenna due to driving reasons. This requires very high synchronization accuracy during the movement of the double screw rods. The existing master-slave synchronization During the movement of the control mode, it is easy to cause stagnation, which will deform the ant...

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Abstract

The invention belongs to the field of automatic control, and relates to a double-screw synchronization control method based on a virtual main shaft. The method comprises the steps: achieving the synchronous operation of a radar array plane drive screw through the synchronization control mode of the virtual main shaft, enabling a position instruction to serve as the virtual main shaft, taking two servo motors to serve as driven shafts, and enabling the two motors to operate under the drive of the main shaft. The method achieves the quick and high-precision setting-up requirements of a phased array radar plane, solves problems in the screw synchronization drive that a lagged driven shaft, the bigger position or force moment difference of two screws and the excessively quick adjustment cause the system oscillation and poorer synchronization reliability. The method is good in application prospect in the field.

Description

technical field [0001] The invention belongs to the field of automatic control and relates to a method for synchronous control of double screw rods based on a virtual main shaft. Background technique [0002] With the development of radar technology, more and more radars generally use phased array antennas. Considering that the dual-screw mechanism has the advantages of reducing the concentrated stress on the antenna array and facilitating the structural layout, the dual-screw synchronous technology is widely used. It is widely used in the driving mechanisms such as folding, pitching, and lifting of the radar antenna front. At present, there are two ways of double screw synchronization: double screw mechanical synchronous drive mechanism, that is, a linkage device with one torque input and two torque outputs is used to connect the two screw rods. When the motor rotates, the linkage device outputs the torque and speed of the motor. Distributed to two screw rods to drive the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 周兵刘朝亮
Owner WUHAN BINHU ELECTRONICS
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