Ultrasonic motor servo control system speed dead zone compensation control device and method

A technology of servo control system and ultrasonic motor, applied in control system, AC motor control, estimation/correction of motor parameters, etc., can solve problems such as speed dead zone, cycle repetition signal control error, system performance impact, etc., to reduce The degree of influence, the effect of improving control efficiency and broad application prospects

Active Publication Date: 2018-09-18
MINJIANG UNIV
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  • Application Information

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Problems solved by technology

[0002] Due to the existence of the speed dead zone in the design of the existing ultrasonic motor servo control system, the performance of the system is affected, and there is a certain error in the control of the periodic repetitive signal

Method used

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  • Ultrasonic motor servo control system speed dead zone compensation control device and method
  • Ultrasonic motor servo control system speed dead zone compensation control device and method
  • Ultrasonic motor servo control system speed dead zone compensation control device and method

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Embodiment Construction

[0018] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0019] The ultrasonic motor control system of the present invention, such as figure 1 As shown, it includes a base 12 and an ultrasonic motor 4 arranged on the base 12, the output shaft 3 of the ultrasonic motor 4 is connected to the photoelectric encoder 1, and the output shaft 6 on the other side is connected to the flywheel inertial load 7 , the output shaft 8 of the flywheel inertial load 7 is connected to the torque sensor 10 through the elastic coupling 9, and the signal output end of the photoelectric encoder 1 and the signal output end of the torque sensor 10 are respectively connected to the control system. The control system includes a speed dead zone compensation controller.

[0020] The ultrasonic motor 4 , photoelectric encoder 1 and torque sensor 10 are respectively fixed on the base 12 via the ultrasonic motor fixing bracket 5 ,...

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Abstract

The invention relates to an ultrasonic motor servo control system speed dead zone compensation control apparatus and method. The apparatus comprises a control system, a pedestal and an ultrasonic motor arranged on the pedestal, wherein an output shaft at one side of the ultrasonic motor is connected with a photoelectric encoder, an output shaft at the other side is connected with a flywheel inertia load, the output shaft of the flywheel inertia load is connected with a moment sensor via a shaft coupling, and the signal output ends of the photoelectric encoder and the moment sensor are connected with the control system. The control system is composed of a dead zone compensation controller and a motor, the system of the whole controller is established based on the dead zone compensation controller, minimization of identification errors is also taken as an adjustment function in terms of design of the controller, and better control efficiency can be obtained. The apparatus and the control system have the advantages of high control accuracy, simple and compact structure and good application effect.

Description

technical field [0001] The invention relates to the field of motor controllers, in particular to an ultrasonic motor servo control device and method based on speed dead zone compensation. Background technique [0002] In the design of the existing ultrasonic motor servo control system, due to the existence of the speed dead zone, the performance of the system is affected, and there is a certain error in the control of the periodic repetitive signal. [0003] In order to improve the following performance of the system, we designed the ultrasonic motor servo control system based on speed dead zone compensation. From the implementation results of speed following, we found that the speed relationship of the system is basically linear, and factors such as parameter changes, noise, cross-coupling interference, and friction can hardly affect the speed output. Therefore, based on the speed dead zone compensation The ultrasonic motor servo control system can effectively improve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P25/02H02P23/14
CPCH02P25/02
Inventor 傅平
Owner MINJIANG UNIV
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