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DC brushless motor position servo controller

A brushless DC motor and servo controller technology, applied in the field of controllers, achieves the effects of strong anti-interference, good robustness against parameter changes, and low noise

Inactive Publication Date: 2016-07-13
哈尔滨功成科技创业投资有限公司
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Problems solved by technology

These methods are powerless for solving multivariable time-varying systems

Method used

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  • DC brushless motor position servo controller
  • DC brushless motor position servo controller
  • DC brushless motor position servo controller

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Embodiment Construction

[0020] The principle of the present invention and the specific connection relationship are described in more detail below in conjunction with the accompanying drawings:

[0021] A brushless DC motor position servo controller, which consists of: a controller 1, a PWM amplifier circuit 2, a brushless DC motor 3, a harmonic reducer 4, and a speed and position detection device 5, characterized in that: PWMBDCM position The servo system adopts the double-loop subordinate control structure of angle and angular velocity; the servo system composed of domestic brushless DC torque motor, PWM power amplifier and harmonic reducer; the motor used in this system is J130LW-CW brushless DC torque motor, of which the control The controller consists of an angle controller and an angular velocity controller.

[0022] combine figure 1 , figure 1 It is the schematic structural diagram of the system of the present invention; the present invention includes control controller, PWM amplifier circuit...

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Abstract

A DC brushless motor position servo controller comprises a controller, a PWM amplification circuit, a brushless DC motor, a harmonic reducer and a speed and position detection device. The controller is the core. The difference between an input signal and a feedback signal (the feedback signal can be an output signal, and can also be a function or derivative of the output signal) is an error signal. The error signal is added to the controller to reduce the error of the system and enable the output quantity of the system to be close to the expected value. The PWM drive device adopts a permanent magnet DC servo motor drive device controlled by a power transistor PWM, which is a most widely-applied drive mode in the high-precision servo system control field.

Description

technical field [0001] The invention relates to a controller for performing position servo on a DC brushless motor, in particular to performing position servo on PWMBDCM. Background technique [0002] Servo control technology is a branch of the automation discipline that is most closely related to the industrial sector and provides the most extensive services. The world's first servo system was successfully developed in 1994 by the predecessor of the Lincoln Laboratory of the Massachusetts Institute of Technology Radiation Laboratory. This is the servo system for artillery tracking targets. This kind of early servo system used the drive method of alternating magnetic motor amplifier - DC motor. Due to the poor frequency response of the alternating magnetic motor amplifier, the moment of inertia of the electric rotating part and the electrical time constant of this system are relatively large, so the response is relatively slow. [0003] Servo system belongs to an integral ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00
Inventor 赵彬彬张秀颖
Owner 哈尔滨功成科技创业投资有限公司
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