Fuzzy controller secondary development design method based on Siemens_PLC platform

A fuzzy controller, secondary development technology, applied in the direction of program control, program control, electrical program control, etc. The effect of reducing personnel and facilitating communication

Inactive Publication Date: 2020-06-09
HANDAN IRON & STEEL GROUP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] It is common for SIEMENS control system to adopt conventional pid control. For the actual industrial production process, the conventional pid control that comes with SIEMENS control system will make the control amount exceed the possible maximum of the actuator when it starts, stops, and the setting value increases or decreases greatly. The limit control quantity corresponding to the action range will eventually cause a large overshoot of the system, and even cause the system to oscillate.

Method used

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  • Fuzzy controller secondary development design method based on Siemens_PLC platform
  • Fuzzy controller secondary development design method based on Siemens_PLC platform
  • Fuzzy controller secondary development design method based on Siemens_PLC platform

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Embodiment Construction

[0046] The present invention will be described in further detail below in conjunction with the examples.

[0047] The invention discloses a fuzzy controller secondary development and design method based on the SIEMENS_PLC platform, based on the SIEMENS control system Step7_300_PLC platform and WinCC for secondary development, to construct a fuzzy controller, and the constructed fuzzy controller has a deviation and the rate of deviation change as input, control As output, where Step7_300_PLC is responsible for calculating the deviation of the written process value and the rate of deviation change , WinCC is responsible for writing the fuzzy control part; the specific construction of the fuzzy controller includes the following steps:

[0048] S1, fuzzy control input;

[0049] S2, calculate the deviation and the rate of deviation change and blur;

[0050] S3, defining fuzzy variables and their linguistic values;

[0051] S4, provide the input and output fuzzy varia...

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Abstract

The invention relates to a fuzzy controller secondary development design method based on a Siemens_PLC platform. The method is based on a fuzzy control theory, fuzzy language knowledge and logic rulereasoning. A fuzzy controller compiled by Step7 and WinCC serves as a main framework, detailed secondary development design is carried out, an SIEMENS_PLC platform can be transplanted to achieve the effective control over basic automation equipment, and resource consumption can be reduced.

Description

technical field [0001] This patent application belongs to the technical field of secondary development intelligent control of SIEMENS control system, more specifically, relates to a secondary development and design method of fuzzy controller based on Step7_300_PLC platform. Background technique [0002] It is common for SIEMENS control system to adopt conventional pid control. For the actual industrial production process, the conventional pid control that comes with SIEMENS control system will make the control amount exceed the possible maximum of the actuator when it starts, stops, and the setting value increases or decreases greatly. The limit control quantity corresponding to the action range will eventually cause a large overshoot of the system, and even cause the system to oscillate. In order to meet the needs of automation development, the control system can adopt fuzzy controller, and use SIEMENS control system Step7 and WinCC for secondary development. [0003] In o...

Claims

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Application Information

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IPC IPC(8): G05B19/05
CPCG05B19/056
Inventor 杨铮王伟兵潘鹏申存斌李仁华宋林昊
Owner HANDAN IRON & STEEL GROUP
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