CN113137729A - Fuzzy control method of constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content - Google Patents
Fuzzy control method of constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content Download PDFInfo
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- CN113137729A CN113137729A CN202110409118.XA CN202110409118A CN113137729A CN 113137729 A CN113137729 A CN 113137729A CN 202110409118 A CN202110409118 A CN 202110409118A CN 113137729 A CN113137729 A CN 113137729A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
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
- F24F11/62—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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- 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
- F24F11/0008—Control or safety arrangements for air-humidification
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a fuzzy control method of a constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content. Meanwhile, the invention can cover all constant temperature and humidity air conditioning units and has wide application value.
Description
Technical Field
The invention relates to an air conditioner control method, in particular to a control method of a constant-temperature and constant-humidity air conditioner, and specifically relates to a fuzzy control method of the constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content.
Background
Currently, constant temperature and humidity air conditioners are widely used in various industries, and the constant humidity is mainly controlled by relative humidity or moisture content. However, both of these control methods have the following disadvantages:
1) when the relative humidity is taken as a control variable of the constant humidity, the relative humidity is coupled with the temperature, so that the temperature change can cause the reverse fluctuation of the relative humidity, namely, the temperature is increased, and the relative humidity is reduced; the temperature decreases and the relative humidity increases. Taking the dry bulb temperature of 23 ℃ and the relative humidity of 50% as an example, under the condition of constant moisture content, the temperature fluctuates by +/-1 ℃ and the relative humidity fluctuates by about +/-3%, so that the relative humidity is difficult to control.
2) When the moisture content is used as the control variable of the constant humidity, the moisture content is decoupled from the temperature, so that the moisture content cannot fluctuate due to temperature fluctuation, and the control is simpler. However, when the temperature deviates from the control target and the moisture content reaches the control target, the relative humidity also deviates from the control target. The moisture content is only a process control variable, and the relative humidity is the final control target, so that the control target cannot be realized.
Therefore, improvements are needed to better meet market demands.
Disclosure of Invention
The invention aims to provide a fuzzy control method of a constant temperature and humidity air conditioner based on relative humidity and moisture content aiming at the defects of the prior art, wherein when the temperature deviation is large, the relative humidity is taken as a main control variable; when the temperature deviation is small, the moisture content is taken as a control variable as a main part, so that the constant humidity control effect is realized quickly and accurately under different temperature deviation conditions.
The technical scheme of the invention is as follows:
a fuzzy control method of a constant temperature and humidity air conditioner based on relative humidity and moisture content is disclosed, wherein a temperature and humidity probe is arranged at the indoor side of the air conditioner, and can detect indoor temperature and humidity; the control method comprises the following steps:
1) starting the unit, setting a preset temperature Ts and a preset humidity Ws of the unit, and calculating to obtain a moisture content D1 corresponding to the preset temperature Ts and the preset humidity Ws;
2) detecting the actual indoor temperature T and humidity W, and calculating to obtain a moisture content D2 corresponding to the actual indoor temperature T and humidity W;
3) calculating absolute deviation delta T = | T-Ts |, between the actual temperature and the set temperature;
4, calculating the output change quantity delta Dout =deltaT/(T1-T2) + T2/(T2-T1) by taking the moisture content as a control variable when the output of the humidifier is controlled; wherein T1 is a first set temperature difference, T1 is a second set temperature difference, and T1 is less than T2;
5) calculating the output variation quantity delta Rhout =deltaT/(T2-T1) + T1/(T1-T2) by taking the relative humidity as a control variable when controlling the output of the humidifier;
6) if T1 is not less than Delta T, the actual output variation quantity Delta Hout of the humidifier is not less than Delta Dout;
7) if T1 < | Δ T | < T2, Δ Hout =ΔRhout +. DELTA Dout;
8) if T2 ≦ Δ T ≦ Δ Hout =ΔRhout;
9) return to step 2).
Further, the T1 defaults to 1 ℃; t2 defaults to 2 ℃.
The invention has the beneficial effects that:
the invention has reasonable design, clear logic and convenient control, effectively solves the problems existing in the prior art by taking the relative humidity or the moisture content as the control variable, and can take the relative humidity as the main control variable when the temperature deviation is large; when the temperature deviation is small, the moisture content is used as a main control variable, so that the adjustment can be quickly and accurately carried out under different temperature deviation conditions, and the effect of constant humidity control is achieved. Moreover, the invention can cover all constant temperature and humidity air conditioning units and has wide application value.
Detailed Description
The present invention will be further described with reference to the following examples.
A fuzzy control method for a constant-temperature constant-humidity air conditioner based on relative humidity and moisture content is characterized in that a temperature and humidity probe is arranged on the indoor side of the air conditioner and can detect indoor temperature and humidity. The control method comprises the following steps:
1) starting the unit, setting a preset temperature Ts and a preset humidity Ws of the unit, and calculating to obtain a moisture content D1 corresponding to the preset temperature Ts and the preset humidity Ws; the Ts and Ws can be adjusted according to the use condition;
2) detecting the actual indoor temperature T and humidity W, and calculating to obtain a moisture content D2 corresponding to the actual indoor temperature T and humidity W;
3) calculating absolute deviation delta T = | T-Ts |, between the actual temperature and the set temperature;
4, calculating the output change quantity delta Dout =deltaT/(T1-T2) + T2/(T2-T1) by taking the moisture content as a control variable when the output of the humidifier is controlled; wherein T1 is a first set temperature difference, T1 is a second set temperature difference, and T1 is less than T2;
5) calculating the output variation quantity delta Rhout =deltaT/(T2-T1) + T1/(T1-T2) by taking the relative humidity as a control variable when controlling the output of the humidifier;
6) if T1 is not less than Delta T, the actual output variation quantity Delta Hout of the humidifier is not less than Delta Dout; adjusting the humidifier according to the delta Hout;
7) if T1 < | Δ T | < T2, Δ Hout =ΔRhout +. DELTA Dout; adjusting the humidifier according to the delta Hout;
8) if T2 ≦ Δ T ≦ Δ Hout =ΔRhout; adjusting the humidifier according to the delta Hout;
9) return to step 2).
Further, the T1 and the T2 can be adjusted according to actual conditions. Typically, the T1 defaults to 1 ℃ and T2 defaults to 2 ℃.
The invention has reasonable design, clear logic and convenient control, effectively solves the problem that the relative humidity or the moisture content is taken as the control variable independently in the prior art, and can take the relative humidity as the main control variable when the temperature deviation is large. When the temperature deviation is small, the moisture content is used as a main control variable, so that the adjustment can be quickly and accurately carried out under different temperature deviation conditions, and the constant humidity control effect is achieved. Moreover, the invention can cover all constant temperature and humidity air conditioning units and has wide application value.
The parts not involved in the present invention are the same as or can be implemented using the prior art.
Claims (2)
1. A fuzzy control method of a constant temperature and humidity air conditioner based on relative humidity and moisture content is characterized in that a temperature and humidity probe is arranged at the indoor side of the air conditioner and can detect indoor temperature and humidity; the control method comprises the following steps:
1) starting the unit, setting a preset temperature Ts and a preset humidity Ws of the unit, and calculating to obtain a moisture content D1 corresponding to the preset temperature Ts and the preset humidity Ws;
2) detecting the actual indoor temperature T and humidity W, and calculating to obtain a moisture content D2 corresponding to the actual indoor temperature T and humidity W;
3) calculating absolute deviation delta T = | T-Ts |, between the actual temperature and the set temperature;
4, calculating the output change quantity delta Dout =deltaT/(T1-T2) + T2/(T2-T1) by taking the moisture content as a control variable when the output of the humidifier is controlled; wherein T1 is a first set temperature difference, T1 is a second set temperature difference, and T1 is less than T2;
5) calculating the output variation quantity delta Rhout =deltaT/(T2-T1) + T1/(T1-T2) by taking the relative humidity as a control variable when controlling the output of the humidifier;
6) if T1 is not less than Delta T, the actual output variation quantity Delta Hout of the humidifier is not less than Delta Dout;
7) if T1 < | Δ T | < T2, Δ Hout =ΔRhout +. DELTA Dout;
8) if T2 ≦ Δ T ≦ Δ Hout =ΔRhout;
9) return to step 2).
2. The fuzzy control method of the constant temperature and humidity air conditioner based on the relative humidity and the moisture content as claimed in claim 1, wherein the T1 defaults to 1 ℃; t2 defaults to 2 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409118.XA CN113137729A (en) | 2021-04-16 | 2021-04-16 | Fuzzy control method of constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110409118.XA CN113137729A (en) | 2021-04-16 | 2021-04-16 | Fuzzy control method of constant-temperature and constant-humidity air conditioner based on relative humidity and moisture content |
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| Publication Number | Publication Date |
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| CN113137729A true CN113137729A (en) | 2021-07-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877501A (en) * | 2022-04-24 | 2022-08-09 | 南京天加环境科技有限公司 | Intelligent temperature and humidity detection control method for constant temperature and humidity air conditioner |
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2021
- 2021-04-16 CN CN202110409118.XA patent/CN113137729A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877501A (en) * | 2022-04-24 | 2022-08-09 | 南京天加环境科技有限公司 | Intelligent temperature and humidity detection control method for constant temperature and humidity air conditioner |
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Application publication date: 20210720 |
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