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Dc motor controlling system capable of on-line switch over between velocity and position and its switch over method

A DC motor and control system technology, applied in the direction of electric controller, control using feedback, excitation or armature current control, etc., can solve the problem that two sets of control systems cannot be switched online

Inactive Publication Date: 2011-03-09
CHANGSHU NANJING NORMAL UNIV DEV RES INST
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Technical Problem In order to overcome the problem that two different control systems are required for the speed control or position control of the existing DC motor, and the two control systems cannot be switched online, the present invention provides a DC motor control system that can switch between speed and position online. System and switching method, the control system can not only control the speed of the DC motor, but also control the position of the DC motor

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  • Dc motor controlling system capable of on-line switch over between velocity and position and its switch over method
  • Dc motor controlling system capable of on-line switch over between velocity and position and its switch over method
  • Dc motor controlling system capable of on-line switch over between velocity and position and its switch over method

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Embodiment Construction

[0014] Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing, figure 1 It is a schematic block diagram of a DC motor control system and a switching method that can switch between speed and position online.

[0015] figure 1 In the above, when the DC motor is under speed control, the inner ring switch 7 and the outer ring switch 5 are switched to the speed gear synchronously. The speed command signal generated by the speed command signal generator 2 is sent to the inner ring comparator 8 through the speed gear of the inner ring switch 7, and compared with the feedback signal sent by the speed detection sensor 12, the generated error signal is output to the inner ring control The controller 9 is used as the input control signal of the driver 10 after being controlled and calculated by the inner loop controller, and then the driver drives the motor 11 to reach the speed to be controlled according to the magnitude of th...

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Abstract

The present invention discloses a DC motor control system and a switch method thereof. The DC motor control system which has a speed and position online switched consists of an inner ring, an outer ring and a switch ring. The inner ring alone controls the speed of the DC motor, the embedding combination of the inner and the outer rings control the position of the DC motor, the switch ring assuresa stable online switch from the control of the speed to the control of the position. The DC motor control system and the switch method of the present invention control not only the speed of the DC motor but also the position of the DC motor. In addition, the speed control and the position control can switch online stably and the online switch has no impact on the position to be controlled in operation. Therefore the two different controlled variables of the DC motor can be controlled anytime according to actual operation needs in production.

Description

technical field [0001] The invention belongs to a direct current motor control system, in particular to a control system capable of controlling both the speed and the position of the direct current motor and a method for online smooth switching between the two. Background technique [0002] At present, the known DC motor speed control or position control requires two different control systems, and the two control systems cannot be switched to each other when they are online. For the same DC motor, if the initial operation is in the speed control state and you want to switch to the position control state, you should first stop, transfer the motor and its load from the speed control system to the position control system, and then restart it. Perform position control. If the initial operation is in the position control state, it must go through the above process of stopping and restarting before it can be converted into the speed control state. [0003] If the existing switch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P7/06H02P7/18G05B11/01G05D3/12
Inventor 曾文火朱鹏程周云祥
Owner CHANGSHU NANJING NORMAL UNIV DEV RES INST
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