CN104764169B - A kind of interval control method of central air conditioner changeable temperature humidity - Google Patents
A kind of interval control method of central air conditioner changeable temperature humidity Download PDFInfo
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- CN104764169B CN104764169B CN201510193354.7A CN201510193354A CN104764169B CN 104764169 B CN104764169 B CN 104764169B CN 201510193354 A CN201510193354 A CN 201510193354A CN 104764169 B CN104764169 B CN 104764169B
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- security interval
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- interval
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to a kind of interval control method of central air conditioner changeable temperature humidity, this method includes temperature loop control method and humidity loop control scheme, and one, temperature loop control method：1）After unit operation, current environmental temperature is judged whether in the interior security interval set of program, 2）If in security interval, desired temperature, which is in, changes following state, and triggers the reset of PID variables；3）If outside security interval：1. deflect away from security interval upwards, then desired temperature be set as in program as defined in higher limit, PID triggering regulations make temperature value be controlled with system prestissimo toward in security interval；2. deflect away from security interval downwards, then desired temperature be set as in program as defined in lower limit, PID triggering regulations make temperature value be controlled with system prestissimo toward in security interval；2nd, humidity loop control scheme：Process is identical with temperature loop control method, and the present invention meets maximum energy saving space demand.
Description
Technical field
The present invention relates to manufacturing industry production environment Temperature and Humidity Control, more particularly to a kind of control of central air conditioner changeable temperature humidity interval
Method processed.
Background technology
Relevant data acquisition is carried out to central air-conditioning, by MATLAB softwares, with least square method, Cold water tap is set up and opens
Mathematical modeling (one order inertia delayed+purely retarded model) in degree and factory building room between temperature, for system emulation provide model according to
According to.Principle is estimated using SMITH, on predicated error loop, weighted average filtering is added, carrys out the stability of strengthening system.Profit
With the principle of fuzzy-adjustable PID algorithm, and for the mathematical modeling between central air-conditioning Cold water tap and room temperature, use
Fuzzy Adaptive PID+improved SMTIH Prediction Control algorithms, system emulation is carried out on MATLAB softwares, is controlled well
Effect processed.It is big for air conditioner energy source consumption, air-conditioning system cooling PID and heating PID interlockings are proposed, dehumidifying PID and humidification PID are mutual
The thought of lock, meanwhile, the set-point for how reasonably selecting this four pid control circuits is provided, control system is saved.And will
Fuzzy self-adjusted PI algorithm is applied in the interlocking control thought, has obtained good control effect.
Above-mentioned technology has broken traditional pure PID control thought, has one between Temperature and Humidity Control precision and energy-conservation
The secondary innovation more balanced.But this control method is finally by adjusting PID set-points i.e. system response time and control
Precision reaches the effect of energy-conservation, and human factor is larger, it is impossible to energy-saving excavation space the most deep.
The content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of interval control method of central air conditioner changeable temperature humidity,
This method can not only meet the requirement of Temperature and Humidity Control precision on the premise of interference from human factor is abandoned completely, can be certainly
Environment seasonal variations are adapted to, are run with optimal power save mode.
To realize above-mentioned purpose, the present invention uses following technical scheme：
A kind of interval control method of central air conditioner changeable temperature humidity, this method includes temperature loop control method and humidity loop
Control method, it is characterised in that：
First, temperature loop control method：
1）After unit operation, judge current environmental temperature whether in the interior security interval set of program
2）If in security interval, desired temperature, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then desired temperature is set as in program defined higher limit, PID triggerings are adjusted,
Temperature value is set to be controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then desired temperature is set as in program defined lower limit, PID
Triggering regulation, makes temperature value be controlled with system prestissimo toward in security interval；
2nd, humidity loop control scheme：
1）After unit operation, judge current environment humidity whether in the interior security interval set of program；
2）If in security interval, humidity set point, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then humidity set point is set as in program defined higher limit, PID triggerings are adjusted,
Humidity value is set to be controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then humidity set point is set as in program defined lower limit, PID triggerings are adjusted,
Humidity value is set to be controlled with system prestissimo toward in security interval.
The present invention proposes its actual control ability model, according to this model by carrying out emulation testing to air-conditioner set
Temperature and Humidity Control security interval is determined, and setting one meets control system in the pid parameter of security interval external enwergy quick response
Temperature and Humidity Control required precision.And in security interval, automatically reset pid parameter, make air-conditioning temperature and humidity regulation mechanism adaptive
Follow.To meet maximum energy saving space demand.
Brief description of the drawings
Fig. 1 is control flow chart of the invention.
Embodiment
The embodiment to the present invention makes a detailed explanation below in conjunction with the accompanying drawings.
A kind of a kind of interval control method of central air conditioner changeable temperature humidity as shown in Figure 1, central air conditioner changeable temperature humidity is interval
Control method, this method includes temperature loop control method and humidity loop control scheme, it is characterised in that：
First, temperature loop control method：
1）After unit operation, judge current environmental temperature whether in the interior security interval set of program
2）If in security interval, desired temperature, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then desired temperature is set as in program defined higher limit, PID triggerings are adjusted,
Temperature value is set to be controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then desired temperature is set as in program defined lower limit, PID
Triggering regulation, makes temperature value be controlled with system prestissimo toward in security interval；
2nd, humidity loop control scheme：
1）After unit operation, judge current environment humidity whether in the interior security interval set of program；
2）If in security interval, humidity set point, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then humidity set point is set as in program defined higher limit, PID triggerings are adjusted,
Humidity value is set to be controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then humidity set point is set as in program defined lower limit, PID triggerings are adjusted,
Humidity value is set to be controlled with system prestissimo toward in security interval.
The present invention is not in the case where influenceing process condition, and for reduction air conditioning energy consumption, production in summer area setpoint temperature can be with
Up-regulation.Winter building enclosure heat dissipation capacity is generally higher than equipment heating amount, and workshop needs heat supply, and producing region design temperature can be following
Adjust.Humiture in actual motion in producing region can be in technique allowed band using change setting value operation.According to made
Fixed control strategy, optimum control scheme is designed in PLC control platforms, is ensureing the situation of air-conditioning system stable operation
Under, each valve opening and actuation time are reduced as far as possible, to reduce energy consumption.During system debug, with reference to the actual control of system
Precision, further optimization control scheme, to ensure the actual humiture in workshop within the fluctuation range of permission.In-site measurement is annual
Producing region humiture and air-conditioner set conveying energy consumption and cold and heat consumption in running, binding isotherm method, contrast
Analyze this method and former methodical status of energy consumption.And accordingly formulate Hangzhou Cigarette Factory producing region airconditioning control standard.This hair
Bright Hangzhou Cigarette Factory air conditioner system energy saving is reached more than 30%, this control method can be promoted in manufacturing.By 1 year
Testing and verification, Hangzhou Cigarette Factory air conditioning energy consumption drops to 0.8 kilogram of mark coal/ten thousand, energy-conservation from 1.2 kilograms of mark coal/ten thousand
Measure up to 33%.
Claims (1)
1. a kind of interval control method of central air conditioner changeable temperature humidity, this method includes temperature loop control method and humidity loop is controlled
Method processed, it is characterised in that：
First, temperature loop control method：
1）After unit operation, judge current environmental temperature whether in the interior security interval set of program
2）If in security interval, desired temperature, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then desired temperature is set as in program defined higher limit, PID triggering regulations make temperature
Angle value is controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then desired temperature is set as in program defined lower limit, PID
Triggering regulation, makes temperature value be controlled with system prestissimo toward in security interval；
2nd, humidity loop control scheme：
1）After unit operation, judge current environment humidity whether in the interior security interval set of program；
2）If in security interval, humidity set point, which is in, changes following state, and triggers the reset of PID variables；
3）If outside security interval：
1. security interval is deflected away from upwards, then humidity set point is set as in program defined higher limit, PID triggering regulations make wet
Angle value is controlled with system prestissimo toward in security interval；
2. security interval is deflected away from downwards, then humidity set point is set as in program defined lower limit, PID triggering regulations make wet
Angle value is controlled with system prestissimo toward in security interval.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510193354.7A CN104764169B (en) | 2015-04-22 | 2015-04-22 | A kind of interval control method of central air conditioner changeable temperature humidity |
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| CN201510193354.7A CN104764169B (en) | 2015-04-22 | 2015-04-22 | A kind of interval control method of central air conditioner changeable temperature humidity |
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| CN104764169A CN104764169A (en) | 2015-07-08 |
| CN104764169B true CN104764169B (en) | 2017-10-31 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109059098B (en) * | 2018-05-14 | 2022-05-13 | 深圳市星邑股份有限公司 | Small-sized constant-temperature constant-humidity precise air conditioning device and control method thereof |
| CN111637604B (en) * | 2018-07-06 | 2021-07-16 | 海信家电集团股份有限公司 | Air conditioner control method and air conditioner |
| CN111365778B (en) * | 2020-03-24 | 2021-03-05 | 浙江中烟工业有限责任公司 | Fresh air dehumidification control method for process air conditioner of cigarette factory |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073512A (en) * | 1991-12-13 | 1993-06-23 | 上海石化总厂维纶厂职工技术协会 | Intelligent controller for air conditioning |
| KR0134726B1 (en) * | 1994-10-10 | 1998-04-28 | 구자홍 | Temperature controller for an airconditioner |
| CN101539151A (en) * | 2008-03-18 | 2009-09-23 | 海尔集团公司 | Method and device for controlling inverter compressor |
| CN104266398A (en) * | 2014-10-20 | 2015-01-07 | 深圳麦克维尔空调有限公司 | Air handling unit and high temperature and low temperature switching system thereof |
-
2015
- 2015-04-22 CN CN201510193354.7A patent/CN104764169B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1073512A (en) * | 1991-12-13 | 1993-06-23 | 上海石化总厂维纶厂职工技术协会 | Intelligent controller for air conditioning |
| KR0134726B1 (en) * | 1994-10-10 | 1998-04-28 | 구자홍 | Temperature controller for an airconditioner |
| CN101539151A (en) * | 2008-03-18 | 2009-09-23 | 海尔集团公司 | Method and device for controlling inverter compressor |
| CN104266398A (en) * | 2014-10-20 | 2015-01-07 | 深圳麦克维尔空调有限公司 | Air handling unit and high temperature and low temperature switching system thereof |
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| CN104764169A (en) | 2015-07-08 |
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