CN102538150A - Method for controlling multiple air conditioners through variable-parameter intelligent PID linkage - Google Patents
Method for controlling multiple air conditioners through variable-parameter intelligent PID linkage Download PDFInfo
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- CN102538150A CN102538150A CN2012100648693A CN201210064869A CN102538150A CN 102538150 A CN102538150 A CN 102538150A CN 2012100648693 A CN2012100648693 A CN 2012100648693A CN 201210064869 A CN201210064869 A CN 201210064869A CN 102538150 A CN102538150 A CN 102538150A
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- 238000004378 air conditioning Methods 0.000 claims abstract description 18
- 238000013459 approach Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
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- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The invention discloses a method for controlling a plurality of air conditioners by variable parameter intelligent PID linkage, which carries out weighted average calculation according to the detection data of each sensor in each area to obtain the temperature and humidity error in each area. The cold and heat opposition working condition caused by local load fluctuation of the traditional large-space air conditioning system is eliminated, and the requirements of large space high-precision constant temperature and humidity are met.
Description
Technical field
The invention belongs to technical field of automatic control, be specifically related to the control method of many air conditioners of a kind of variable element intelligent PID interlock control, the high-precision control method of high energy saving, high stability and constant temperature and humidity of especially building for large spacing factory building.
Background technology
Air-conditioning system of the general employing of tradition large space; When the Where topical load takes place than great fluctuation process; Air-conditioning system can't change to localised load regulate, and causes the local air parameter not satisfy technological requirement, in addition some zone appears maybe be at refrigeration cool-down; And the difference that contiguous zone possibly distribute because of the cold air influence or the machine utilization on next door causes cooling too much need heat, and forms the opposition operating mode.And the control of present air-conditioning system generally is controlled to be the master with conventional PID; This control mode is when the value of feedback of controlled variable is excessive; Can cause importing too much controlled quentity controlled variable, cause system overshoot, even disperse; Therefore in the system of dynamic, the big time delay of control, conventional PID regulates has certain drawback.In some spaces; Like the wraparound workshop of cigarette factory, the distribution of its load changes with the space in time, and the variation of air measuring point reflection localised load has certain delay; Belong to dynamic, big delayed time system; If the PID according to routine regulates, will make indoor humiture satisfy not production requirement, cause production loss.
Summary of the invention
The objective of the invention is to deficiency to prior art; The method of many air conditioners of a kind of variable element intelligent PID interlock control is provided; Eliminate the appearance of the cold and hot opposition operating mode that traditional large space air-conditioning system produces owing to localised load fluctuation, satisfy the requirement of large space high-accuracy and constant constant temperature and humidity.
The object of the invention is realized through following technical scheme.
The method of many air conditioners of a kind of variable element intelligent PID interlock control; It is characterized in that: the deviation relational expression that comprises pid parameter and setting value; Pid parameter can carry out real-time adjustment according to the variation of air conditioning condition; Make output variable and deviation reach best combining, guarantee that system condition approaches setting value most.
For the air conditioner load fluctuation of regional area, can regulate this zone air-conditioning system operational factor on every side through the interlock of variable parameter PID control method, when making air-spray to this zone, offset load fluctuation, effectively eliminate the opposition operating mode.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done to specify further, but accompanying drawing and embodiment are not the qualification to technical scheme of the present invention.
Embodiment 1
The air conditioning of the bigger building in space is made up of a plurality of independent air-conditioning systems, and each air-conditioning system only is responsible for certain zone, and each air-conditioning system can be regulated separately.Be responsible for the zone in each air-conditioning system and settle temperature, humidity sensor; The PLC controller will carry out weighted average calculation according to the detection data of each sensor in the zone, obtain zone temperature, humidity error, for the load fluctuation of part; Regulate this zone air-conditioning system operational factor on every side through variable parameter PID; When making air-spray to this zone, offset load fluctuation, effectively eliminate the opposition operating mode.Through interlock control to many air-conditioning systems, regulate the air supply parameter of different air-conditioning systems, make temperature, the humidity of space reach the craft precision requirement.
Fig. 1 is variable parameter PID Principles of Regulation figure:
Wherein, T is the sampling period, must make T enough little, and there is certain precision in the system that could guarantee; Deviate when e (k) is the k time sampling; Deviate when e (k-1) is (k-1) inferior sampling; K is a sampling sequence number; U (k) is the output of the k time SAMPLING REGULATOR.
The variable parameter PID that the present invention adopted is regulated solution:
K
p, T
iAnd T
dCan carry out real-time adjustment according to the variation of air-conditioning system operating mode, make output variable and deviation reach best combining, guarantee that system condition approaches setting value most.The deviation relation of pid parameter and setting value is:
Wherein, K
P0, K
I0, K
D0Be respectively initial proportion coefficient, integral coefficient and differential coefficient; E is a deviation; K
P1, K
I1, K
I2, K
D1Be undetermined coefficient, confirm by system architecture.Confirm pid parameter according to formula (1)～(3).
Although above the preferred embodiments of the present invention are described; But the invention is not restricted to the above-mentioned specific embodiment; Those of ordinary skill in the art is under enlightenment of the present invention; Under the prerequisite of aim of the present invention and claim, can make multiple similar expression, such conversion all falls within protection scope of the present invention.
Claims (2)
1. a variable element intelligent PID links and controls the method for many air conditioners; It is characterized in that: the deviation relational expression that comprises pid parameter and setting value; Pid parameter carries out real-time adjustment according to the variation of air conditioning condition; Make output variable and deviation reach best combining, guarantee that system condition approaches setting value most.
2. control method according to claim 1; It is characterized in that:, regulate this zone air-conditioning system operational factor on every side through the interlock of variable parameter PID control method, when making air-spray to this zone for the air conditioner load fluctuation of regional area; Offset load fluctuation, effectively eliminate the opposition operating mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100648693A CN102538150A (en) | 2012-03-13 | 2012-03-13 | Method for controlling multiple air conditioners through variable-parameter intelligent PID linkage |
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| CN2012100648693A CN102538150A (en) | 2012-03-13 | 2012-03-13 | Method for controlling multiple air conditioners through variable-parameter intelligent PID linkage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453625A (en) * | 2013-08-19 | 2013-12-18 | 苏州康华净化系统工程有限公司 | Workshop constant temperature and humidity system and control method thereof |
| CN104019526A (en) * | 2014-06-24 | 2014-09-03 | 河海大学常州校区 | Fussily self-adaptive PID temperature and humidity control system and method based on improved PSO (Particle Swarm Optimization) algorithm |
| CN105423503A (en) * | 2015-11-07 | 2016-03-23 | 中用环保科技有限公司 | Central air-conditioning energy-saving control method and system based on video human flow density map |
| CN106843227A (en) * | 2017-03-09 | 2017-06-13 | 杭州电子科技大学 | A kind of method of the autonomous tracking path planning of intelligent automobile |
| CN109269027A (en) * | 2018-06-20 | 2019-01-25 | 广东海悟科技有限公司 | A kind of air conditioner refrigerating control method, system and the device of automatic optimal |
| CN115167578A (en) * | 2022-06-22 | 2022-10-11 | 浙江中烟工业有限责任公司 | Dynamic threshold value adjusting method for temperature-changing humidity control interval |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032640A (en) * | 2009-09-25 | 2011-04-27 | 西安西翼智能科技有限公司 | Fuzzy proportion integration differentiation (PID) control method and device for industrial environment high-precision air conditioner |
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2012
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032640A (en) * | 2009-09-25 | 2011-04-27 | 西安西翼智能科技有限公司 | Fuzzy proportion integration differentiation (PID) control method and device for industrial environment high-precision air conditioner |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453625A (en) * | 2013-08-19 | 2013-12-18 | 苏州康华净化系统工程有限公司 | Workshop constant temperature and humidity system and control method thereof |
| CN104019526A (en) * | 2014-06-24 | 2014-09-03 | 河海大学常州校区 | Fussily self-adaptive PID temperature and humidity control system and method based on improved PSO (Particle Swarm Optimization) algorithm |
| CN104019526B (en) * | 2014-06-24 | 2016-08-17 | 河海大学常州校区 | Improve PSO algorithm Fuzzy Adaptive PID temperature and humidity control system and method |
| CN105423503A (en) * | 2015-11-07 | 2016-03-23 | 中用环保科技有限公司 | Central air-conditioning energy-saving control method and system based on video human flow density map |
| CN106843227A (en) * | 2017-03-09 | 2017-06-13 | 杭州电子科技大学 | A kind of method of the autonomous tracking path planning of intelligent automobile |
| CN109269027A (en) * | 2018-06-20 | 2019-01-25 | 广东海悟科技有限公司 | A kind of air conditioner refrigerating control method, system and the device of automatic optimal |
| CN109269027B (en) * | 2018-06-20 | 2023-04-07 | 广东海悟科技有限公司 | Automatic optimization air conditioner refrigeration control method, system and device |
| CN115167578A (en) * | 2022-06-22 | 2022-10-11 | 浙江中烟工业有限责任公司 | Dynamic threshold value adjusting method for temperature-changing humidity control interval |
| CN115167578B (en) * | 2022-06-22 | 2024-02-02 | 浙江中烟工业有限责任公司 | Dynamic threshold adjustment method for variable-temperature humidity control interval |
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Application publication date: 20120704 |