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Sequence control and adjustment method based on PID algorithm and queue model

A technology of sequential control and adjustment method, applied in the direction of controller and electric controller with specific characteristics, can solve the problems of wasting manpower and human error, and achieve the effect of good adaptability, fault tolerance and good stability

Active Publication Date: 2016-07-13
HANGZHOU FORTUNE CRYOGENIC EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the input and removal of equipment requires manual operation and other manual intervention. This method not only wastes manpower, but also is prone to human error.

Method used

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  • Sequence control and adjustment method based on PID algorithm and queue model
  • Sequence control and adjustment method based on PID algorithm and queue model
  • Sequence control and adjustment method based on PID algorithm and queue model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as figure 1 As shown, this embodiment provides a sequence control and adjustment method based on the PID algorithm and the queue model. Its hardware equipment includes a control device (not shown in the figure), a regulator device, multiple groups of controlled devices whose power is P, and switching devices twice the number of controlled devices. There are 2 switching devices (named as the first switching device and the second switching device respectively for the convenience of distinction), record the number of controlled devices as N, and the number of the first switching device corresponding to the controlled device as S 11 ~S 1N , the number of the second switching device corresponding to the controlled device is S 21 ~S 2N .

[0038] The method in this embodiment includes the following steps:

[0039] (1) The N groups of controlled devices whose power is all P are respectively passed through the N groups numbered S 11 ~S 1N The first switching device ...

Embodiment 2

[0058] This embodiment also provides a sequence control and adjustment method based on PID algorithm and queue model, which is different from Embodiment 1 in that it also includes adjusting the power of a certain switching device and power within the set timing duration D The steps of exchanging equipment, define the array J to store S 21 ~S 2N address, define the address of the switching device to be replaced as a, a=1~N, set the address of the power regulating device to be N, and when the set timing duration D arrives, interrupt steps (4) and (5), After turning off the second switching device pointed to by JN and I a points to the first switching device, and closes J a pointing to the second switching device, after executing the swap instruction, the I N with I a The addresses in the exchange, and at the same time JN and J a The addresses in are exchanged, and then the interrupt returns; among them, the exchange instructions are as follows,

[0059] a=mod(a,N)+1

[00...

Embodiment 3

[0062] This embodiment also provides a sequence control and adjustment method based on the PID algorithm and queue model, which is different from Embodiment 2 in that: the first switching device and the second switching device connected to any controlled device at the same time interlock.

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Abstract

The invention relates to a process parameter adjustment and control method applied to industry, and specifically relates to a sequence control and adjustment method based on a PID algorithm and a queue model. A PID algorithm and a queue model can be combined on the basis of original control on multiple devices in the same group, and therefore, the sequence of the multiple devices can be better controlled and adjusted. Compared with the conventional method, the method provided by the invention has a high degree of automation, is manpower-saving and has good fault tolerance, and the cost is basically unchanged.

Description

technical field [0001] The invention relates to an industrial process parameter regulation method, in particular to a sequence control and regulation method based on a PID algorithm and a queue model. Background technique [0002] In industrial applications such as traditional constant pressure water supply systems or constant temperature heating, the same group of multiple identical motors or heaters work at the same time, one of which is used for power regulation (motors generally use frequency conversion speed regulation, electric heaters generally use chopper Power adjustment), in order to achieve the purpose of precisely controlling the process parameters and saving energy. At the same time, 1 or 2 identical devices are usually set up as backup. [0003] In the above-mentioned current applications, it is often required that the backup equipment be put into operation regularly, and the operating equipment be regularly shut down for maintenance, so as to achieve the purp...

Claims

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Application Information

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IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 任复明黄海军陈秀妹
Owner HANGZHOU FORTUNE CRYOGENIC EQUIP CO LTD
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