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Fault diagnosis method of control system based on direct-current electric mechanism simulator

An electric mechanism and fault diagnosis technology, which is applied in the general control system, control/adjustment system, test/monitoring control system, etc., can solve the problems of electromechanical servo motor diagnosis and detection, electromechanical servo control system cannot work normally, and system fault location Difficulty and other issues

Inactive Publication Date: 2021-02-26
上海莘汭驱动技术有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

Since the entire electromechanical servo control system is a feedback closed loop, the failure of any one of the components will cause the feedback closed loop to open, the electromechanical servo control system cannot work normally and the system fault location is difficult
It can be seen that the existing technology cannot effectively, accurately and quickly diagnose and detect the fault status and fault location of the electromechanical servo motor in the form of a feedback closed loop

Method used

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  • Fault diagnosis method of control system based on direct-current electric mechanism simulator
  • Fault diagnosis method of control system based on direct-current electric mechanism simulator
  • Fault diagnosis method of control system based on direct-current electric mechanism simulator

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Embodiment Construction

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0047] refer to figure 1 , is a schematic flowchart of a fault diagnosis method for a control system based on a DC motor mechanism simulator provided by an embodiment of the present invention. The fault diagnosis method of the control system based on the DC motor simulator comprises the following steps:

[0048] Step S1, performing mathematical modeling of the frequency-domain transfer function on the real DC motor mechanism or using an active circuit network to c...

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Abstract

The invention provides a fault diagnosis method for a control system based on a direct-current electric mechanism simulator. The fault diagnosis method comprises the steps of constructing the direct-current electric mechanism simulator through design, enabling a servo controller to form a closed-loop working system through employing a real direct-current electric mechanism as a control object, andenabling the direct-current electric mechanism simulator and the real direct-current electric mechanism to work in parallel. Therefore, real-time monitoring of the working state of the real direct-current electric mechanism can be realized by comparing the respective output quantities of the direct-current electric mechanism simulator and the real direct-current electric mechanism, real-time monitoring of the working state of the real direct-current electric mechanism can be realized according to the difference between different types of output quantities, specifically, the fault type and thefault component of the real direct-current electric mechanism are determined, so that the accuracy, reliability and high efficiency of fault diagnosis of the real direct-current electric mechanism are improved.

Description

technical field [0001] The invention relates to the technical field of control system detection, in particular to a fault diagnosis method for a control system based on a DC motor mechanism simulator. Background technique [0002] The electromechanical servo control system usually consists of a servo controller, motor power amplifier, motor, transmission mechanism, position and speed feedback components, and a load to form a feedback closed loop. The functional block diagram of the electromechanical servo control system is shown in figure 1 shown. The servo controller usually uses a microprocessor system as the hardware basis, uses A / D or other methods to collect the load position and speed values, and compares them with the received control instructions to obtain the control error of the electromechanical servo control system, while The control algorithm is realized by microprocessor software. In each control cycle of the electromechanical servo control system, the servo ...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 曲蔚然许志锋李娟
Owner 上海莘汭驱动技术有限公司
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