A control method of a speed servo system

A servo system and control method technology, applied in the direction of motor parameter estimation/correction, etc., can solve the problems of slow adjustment speed and large dynamic error, achieve the requirements of reducing resolution, improve dynamic performance, and ensure the effect of accuracy

Active Publication Date: 2022-02-01
YUBEI XINXIANG POWER STEERING SYST
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Problems solved by technology

The control quantity needs to be transmitted in different closed loops, resulting in slow adjustment speed and large dynamic error

Method used

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  • A control method of a speed servo system
  • A control method of a speed servo system

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the orientation terms such as left, middle, right, up, and down in the examples of the present invention are only relative concepts or refer to the normal use state of the product, and should not be considered as restrictive .

[0018] A control method for a speed servo system, such as figure 1 shown, including the following steps:

[0019] Step 1: Obtain the target speed of the current speed control iteration cycle, denoted as S1;

[0020] Step 2: Calculate the virtual displacement in the current speed control iteration cycle according to the S1, obtain the difference between the virtual displacement and the feedback position of the controlled object at this moment, and record the difference as A1;

[0021] Step 3: Calculate the target current according to A1. After subtracting the motor feedback current from the target current, the PID oper...

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Abstract

A control method for a speed servo system, comprising the following steps: Obtain the target speed of the current speed control iteration cycle, denoted as S1; calculate the virtual displacement in the current speed control iteration cycle according to the S1, and obtain the virtual displacement and the moment The controlled object feedbacks the position difference, and records the difference as A1; calculates the target current according to A1, and the target current acts on the controlled object after being processed; obtains the target speed of the next speed control iteration cycle, and records is S2; calculate the virtual displacement in the next speed control iteration cycle according to S2, obtain the difference between the virtual displacement and the feedback position of the controlled object at this moment, and record the difference as A2; calculate the target according to A2 Current, the target current acts on the controlled object after being processed. On the premise of ensuring the control accuracy, the response speed of the position control function is improved, and the dynamic performance of the position control function is improved.

Description

technical field [0001] The invention relates to the technical field of speed servo system control based on a position sensor, in particular to a control method of a speed servo system. Background technique [0002] The servo system, also known as the servo system, is a feedback control system used to accurately follow or reproduce a certain process. The servo system is an automatic control system that enables the output controlled quantity of the object's position, orientation, state, etc. to follow any change of the input target (or given value). It has a wide range of applications including aerospace, military, and industrial and agricultural fields. [0003] In the speed servo actuator, the traditional implementation method is two closed-loop methods, which are two typical closed-loop control methods of speed and current. This method needs to receive the speed command, and then realize the speed control through the adjustment of the speed-current two closed loops. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P23/14
CPCH02P23/14
Inventor 姚坤鹏张金萍殷飞娄亚飞吴琛
Owner YUBEI XINXIANG POWER STEERING SYST
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