CN108917130A - A kind of energy-efficient multi-connected machine control method in parallel - Google Patents

A kind of energy-efficient multi-connected machine control method in parallel Download PDF

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Publication number
CN108917130A
CN108917130A CN201810819559.5A CN201810819559A CN108917130A CN 108917130 A CN108917130 A CN 108917130A CN 201810819559 A CN201810819559 A CN 201810819559A CN 108917130 A CN108917130 A CN 108917130A
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China
Prior art keywords
interior
total
outdoor unit
energy
ability
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CN201810819559.5A
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Chinese (zh)
Inventor
方杰
杨亚华
杨兵
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Nanjing TICA Climate Solutions Co Ltd
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Nanjing TICA Climate Solutions Co Ltd
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Priority to CN201810819559.5A priority Critical patent/CN108917130A/en
Publication of CN108917130A publication Critical patent/CN108917130A/en
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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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • 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
    • 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
    • F24F11/65—Electronic processing for selecting an operating mode
    • 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
    • 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
    • F24F2110/12—Temperature of the outside air

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  • Engineering & Computer Science (AREA)
  • Signal Processing (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)
  • Air Conditioning Control Device (AREA)

Abstract

The present invention relates to a kind of energy-efficient multi-connected machine control methods in parallel, including multiple outdoor unit modules and multiple indoor units, and this approach includes the following steps：S1. indoor return air temperature T is detectedIt is interior, and according to set temperature TIf, determine that interior function needs coefficient a；S2. indoor unit total capacity demand Q is calculatedIt is interior total=QInterior 1+QInterior 2+QInterior 3+。+QInterior n；Wherein：QInterior n=Kn* a, KnFor interior machine self-ability nominal value；S3. outdoor environment temperature T is detectedOutside, determine outdoor unit ability output factor b；S4. it calculates outdoor function power and exports summation QIt is outer total=QIt is interior total*b；S5. distribution coefficient c can be needed by choosing；S6. compare QIt is outer totalAnd Qn* c determines that outdoor unit modules open situation；Wherein QnFor the ability nominal value of some outdoor unit modules.By the temperature inside and outside sensing chamber, the total energy for calculating indoor unit needs to export with the ability of outdoor unit the present invention, further according to the outdoor unit that distribution coefficient can be needed to open needed for calculating, can reach energy-efficient purpose while guaranteeing unit performance.

Description

A kind of energy-efficient multi-connected machine control method in parallel
Technical field
The present invention relates to air conditioning control method, especially a kind of control method for being adapted to multi-connected machine, specifically one The energy-efficient multi-connected machine control method in parallel of kind.
Background technique
In multi-line system, the ability design of indoor unit and outdoor unit is all name refrigeration, the name system according to national standard Thermal condition designs, therefore under the two standard conditions, the ability need of indoor unit and the output of outdoor unit are substantially protected Hold 1:1 ratio；But in real life in use, the temperature of different time point indoor and outdoor of different seasons is all changing, room The practical capacity demand of interior machine and the designed capacity of its own and the output of the ability of outdoor unit are no longer 1:1 relationship, if still pressing Ratio control under the quasi- design conditions of sighting target just will appear the case where air-conditioning effect is bad or energy consumption increases.
Likewise, the practical capacity demand of indoor unit determines outside rear chamber in the multi-line system of more outdoor unit parallel connections Machine carries out ability output and calculates, and can distribute to each outdoor unit according to the total output of outdoor unit, but if distribution control is unreasonable, It is possible that outdoor unit occur exports excessive or very few situation, calculated value only needs single module to run, and is actually distributed into two A module operation, causes unnecessary energy waste.
Summary of the invention
The purpose of the present invention is provide a kind of energy-efficient for the currently existing deficiency in terms of multi-line system control Multi-connected machine control method in parallel, the ability need of indoor unit and the reasonable output of outdoor unit can be accurately calculated, guarantee unit Reach energy-efficient purpose while performance.
The technical scheme is that：
A kind of energy-efficient multi-connected machine control method in parallel, including multiple outdoor unit modules and multiple indoor units, the party Method includes the following steps：
S1. indoor return air temperature T is detectedIt is interior, and according to set temperature TIf, determine that interior function needs coefficient a；
S2. indoor unit total capacity demand Q is calculatedIt is interior total=QInterior 1+QInterior 2+QInterior 3+。。。+QInterior n；Wherein：QInterior n=Kn* a, KnFor interior machine Self-ability nominal value；
S3. outdoor environment temperature T is detectedOutside, determine outdoor unit ability output factor b；
S4. it calculates outdoor function power and exports summation QIt is outer total=QIt is interior total*b；
S5. distribution coefficient c can be needed by choosing；
S6. compare QIt is outer totalAnd Qn* c determines that outdoor unit modules open situation；Wherein QnFor the ability of some outdoor unit modules Nominal value.
Further, the outdoor unit modules are three：W1、W2With W3；Corresponding ability nominal value QOuter 1≥QOuter 2≥QOuter 3。
Further, in the step S6, the unlatching of outdoor unit is determined by following judgement, the c value is 0.8~1
Between any value：
If QIt is outer total≤Q3* c, then single module W3Operation；
If Q3* c < QIt is outer total≤Q2* c, then waybill module W2Operation；
If Q2* c < QIt is outer total≤Q1* c, then single module W1Operation；
If Q1* c < QIt is outer total≤(Q2+Q3) * c, then two module W2With W3Operation；
If (Q2+Q3) * c < QIt is outer total≤(Q1+Q3) * c, then two module W1With W3Operation；
If (Q1+Q3) * c < QIt is outer total≤(Q1+Q2) * c, then two module W1With W2Operation；
If QIt is outer total> (Q1+Q2) * c when, then three module W1、W2With W3Operation；
Further, a in the step S1 is determined by following judgement：
When refrigerating operaton, as △ TIt is interior> C1DEG C when, a=A1；
As △ TIt is interior> C2DEG C when, a=A2；
As △ TIt is interior> C3DEG C when, a=A3；
As △ TIt is interior< C1DEG C when, a=A4；
As △ TIt is interior< C4DEG C when, a=A5；
When heating operation, as △ TIt is interior> H1DEG C when, a=A6；
As △ TIt is interior> H2DEG C when, a=A7；
As △ TIt is interior< H1DEG C when, a=A8；
As △ TIt is interior< H3DEG C when, a=A9；
As △ TIt is interior< H4DEG C when, a=A10；
Wherein, △ TIt is interior=TIt returns-TIf；
C1、C2、C3、C4∈ [- 10,10], and C4< C1< C2< C3；
H1、H2、H3、H4∈ [- 10,10], and H4< H3< H2< H1；
A1、A2、A3、A4、A5、A6、A7、A8、A9、A10For any value between 0~1；
Further, the b in the step S3 is：
When refrigerating operaton, b=TOutside/ 35, wherein when b < 0.4, take b=0.4；When b > 1.2, b=1.2 is taken；
When heating operation, b=45-TOutside/38。
Beneficial effects of the present invention：
By the temperature inside and outside sensing chamber, the total energy for calculating indoor unit needs to export with the ability of outdoor unit the present invention, then According to the outdoor unit that distribution coefficient can be needed to open needed for calculating, energy-efficient purpose can be reached while guaranteeing unit performance.
Detailed description of the invention
Fig. 1 is control block diagram of the invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples.
Embodiment one, a kind of multi-line system include one W of outdoor unit modules1, two W of module2With three W of module3, Yi Jiruo Dry indoor unit.Wherein：The ability nominal value of three modules is respectively 20HP, 16HP, 10HP.
As shown in Figure 1, the control method of the present embodiment is：
S1. indoor return air temperature T is detectedIt is interior, and according to set temperature TIf, determine that interior function needs coefficient a, specially：
When refrigerating operaton, as △ TIt is interior0.5 DEG C of >, a=0.5；
△TIt is interiorAt 1.5 DEG C of >, a=0.7；
△TIt is interiorAt 2.5 DEG C of >, a=1；
△TIt is interiorWhen < 0.5, a=0.4；
△TIt is interiorAt < -1.5 DEG C, a=0；
When heating operation, as △ TIt is interiorAt 1 DEG C of >, a=0.5；
△TIt is interiorAt 2 DEG C of >, a=0；
△TIt is interiorWhen < 1, a=0.6；
△TIt is interiorAt < -2 DEG C, a=0.7；
△TIt is interiorAt < -3 DEG C, a=1.1；
Wherein：△TIt is interior=TIt returns-TIf；
S2. indoor unit total capacity demand Q is calculatedIt is interior total=QInterior 1+QInterior 2+QInterior 3+。。。+QInterior n, appointing in n 1,2,3......64 What number；Wherein：QInterior n=Kn* a, KnFor interior machine self-ability nominal value；
S3. outdoor environment temperature T is detectedOutside, determine outdoor unit ability output factor b, specially；
When refrigerating operaton, b=TOutside/ 35, wherein when b < 0.4, take b=0.4；When b > 1.2, b=1.2 is taken；
When heating operation, b=45-TOutside/38；
S4. it calculates outdoor function power and exports summation QIt is outer total=QIt is interior total*b；
S5. it is 0.9 that distribution coefficient c can be needed by, which choosing,；
S6. compare QIt is outer totalAnd Qn* c is determined the unlatching of outdoor unit by following judgement：
If QIt is outer total≤Q3* c, then single module W3Operation；
If Q3* c < QIt is outer total≤Q2* c, then waybill module W2Operation；
If Q2* c < QIt is outer total≤Q1* c, then single module W1Operation；
If Q1* c < QIt is outer total≤(Q2+Q3) * c, then two module W2With W3Operation；
If (Q2+Q3) * c < QIt is outer total≤(Q1+Q3) * c, then two module W1With W3Operation；
If (Q1+Q3) * c < QIt is outer total≤(Q1+Q2) * c, then two module W1With W2Operation；
If QIt is outer total> (Q1+Q2) * c when, then three module W1、W2With W3Operation.
The present invention determines that indoor function needs coefficient a according to indoor return air temperature and using set temperature, and then calculates room Interior machine can need QIt is interior total；Meanwhile outdoor unit ability output factor b is determined according to outdoor unit environment temperature, in conjunction with the total of indoor unit It can need QIt is interior totalQ is exported with the ability output factor b ability for calculating outdoor unitIt is outer total；Finally according to distribution coefficient c can be needed and can need to divide Corresponding module starting operation is controlled with algorithm.Ability need and the outdoor unit of indoor unit can be accurately calculated by this control method Rationally output, reaches energy-efficient purpose while guaranteeing unit performance.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.

Claims (5)

1. a kind of energy-efficient multi-connected machine control method in parallel, including multiple outdoor unit modules and multiple indoor units, feature It is to include the following steps：
S1. indoor return air temperature T is detectedIt is interior, and according to set temperature TIf, determine that interior function needs coefficient a；
S2. indoor unit total capacity demand Q is calculatedIt is interior total=QInterior 1+QInterior 2+QInterior 3+。。。+QInterior n；Wherein：QInterior n=Kn* a, KnFor interior machine itself Ability nominal value；
S3. outdoor environment temperature T is detectedOutside, determine outdoor unit ability output factor b；
S4. it calculates outdoor function power and exports summation QIt is outer total=QIt is interior total*b；
S5. distribution coefficient c can be needed by choosing；
S6. compare QIt is outer totalAnd Qn* c determines that outdoor unit modules open situation；Wherein QnIt is nominal for the ability of some outdoor unit modules Value.
2. energy-efficient multi-connected machine control method in parallel according to claim 1, it is characterized in that the outdoor unit modules It is three：W1、W2With W3；Corresponding ability nominal value QOuter 1≥QOuter 2≥QOuter 3。
3. energy-efficient multi-connected machine control method in parallel according to claim 1, it is characterized in that being pressed in the step S6 The unlatching to determine outdoor unit is judged below, and the c value is any value between 0.8~1：
If QIt is outer total≤Q3* c, then single module W3Operation；
If Q3* c < QIt is outer total≤Q2* c, then waybill module W2Operation；
If Q2* c < QIt is outer total≤Q1* c, then single module W1Operation；
If Q1* c < QIt is outer total≤(Q2+Q3) * c, then two module W2With W3Operation；
If (Q2+Q3) * c < QIt is outer total≤(Q1+Q3) * c, then two module W1With W3Operation；
If (Q1+Q3) * c < QIt is outer total≤(Q1+Q2) * c, then two module W1With W2Operation；
If QIt is outer total> (Q1+Q2) * c when, then three module W1、W2With W3Operation.
4. energy-efficient multi-connected machine control method in parallel according to claim 1, it is characterized in that a in the step S1 It is determined by following judgement：
When refrigerating operaton, as △ TIt is interior> C1DEG C when, a=A1；
As △ TIt is interior> C2DEG C when, a=A2；
As △ TIt is interior> C3DEG C when, a=A3；
As △ TIt is interior< C1DEG C when, a=A4；
As △ TIt is interior< C4DEG C when, a=A5；
When heating operation, as △ TIt is interior> H1DEG C when, a=A6；
As △ TIt is interior> H2DEG C when, a=A7；
As △ TIt is interior< H1DEG C when, a=A8；
As △ TIt is interior< H3DEG C when, a=A9；
As △ TIt is interior< H4DEG C when, a=A10；
Wherein, △ TIt is interior=TIt returns-TIf；
C1、C2、C3、C4∈ [- 10,10], and C4< C1< C2< C3；
H1、H2、H3、H4∈ [- 10,10], and H4< H3< H2< H1；
A1、A2、A3、A4、A5、A6、A7、A8、A9、A10For any value between 0~1.
5. energy-efficient multi-connected machine control method in parallel according to claim 1, it is characterized in that the b in the step S3 For：
When refrigerating operaton, b=TOutside/ 35, wherein when b < 0.4, take b=0.4；When b > 1.2, b=1.2 is taken；
When heating operation, b=45-TOutside/38。
CN201810819559.5A 2018-07-24 2018-07-24 A kind of energy-efficient multi-connected machine control method in parallel Pending CN108917130A (en)

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Cited By (4)

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CN112032936A (en) * 2020-08-24 2020-12-04 Tcl空调器(中山)有限公司 Frequency control method, storage medium and air conditioning system
CN113007872A (en) * 2021-03-19 2021-06-22 青岛海信日立空调***有限公司 Multi-split air conditioning system
CN114738963A (en) * 2022-05-05 2022-07-12 广东开利暖通空调股份有限公司 Mode control system and method for heat recovery multi-split air conditioner
CN114738931A (en) * 2022-04-12 2022-07-12 南京天加环境科技有限公司 All-condition energy demand distribution control method for multi-module air conditioning system

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Publication number Priority date Publication date Assignee Title
CN112032936A (en) * 2020-08-24 2020-12-04 Tcl空调器(中山)有限公司 Frequency control method, storage medium and air conditioning system
CN112032936B (en) * 2020-08-24 2022-07-08 Tcl空调器(中山)有限公司 Frequency control method, storage medium and air conditioning system
CN113007872A (en) * 2021-03-19 2021-06-22 青岛海信日立空调***有限公司 Multi-split air conditioning system
CN113007872B (en) * 2021-03-19 2022-07-01 青岛海信日立空调***有限公司 Multi-split air conditioning system
CN114738931A (en) * 2022-04-12 2022-07-12 南京天加环境科技有限公司 All-condition energy demand distribution control method for multi-module air conditioning system
CN114738931B (en) * 2022-04-12 2024-02-27 南京天加环境科技有限公司 Full-working-condition energy distribution control method for multi-module air conditioning system
CN114738963A (en) * 2022-05-05 2022-07-12 广东开利暖通空调股份有限公司 Mode control system and method for heat recovery multi-split air conditioner
CN114738963B (en) * 2022-05-05 2023-09-22 广东开利暖通空调股份有限公司 Mode control system and control method of heat recovery multi-split air conditioner

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