CN104422072A - Control method for multi-split air conditioner and control system of multi-split air conditioner - Google Patents
Control method for multi-split air conditioner and control system of multi-split air conditioner Download PDFInfo
- Publication number
- CN104422072A CN104422072A CN201310401518.1A CN201310401518A CN104422072A CN 104422072 A CN104422072 A CN 104422072A CN 201310401518 A CN201310401518 A CN 201310401518A CN 104422072 A CN104422072 A CN 104422072A
- Authority
- CN
- China
- Prior art keywords
- conditioner
- control
- gang air
- air
- system pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
- F24F2110/40—Pressure, e.g. wind pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/005—Outdoor unit expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/031—Sensor arrangements
- F25B2313/0314—Temperature sensors near the indoor heat exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a control method for a multi-split air conditioner and a control system of the multi-split air conditioner. The multi-split air conditioner comprises a fresh air indoor unit and the control method for the multi-split air conditioner comprises the following steps of S1, measuring outlet air temperature, outdoor environment temperature, system pressure of the multi-split air conditioner and suction and discharge temperature of a compressor of the multi-split air conditioner as control parameters; S2, according to the capacity condition of the multi-split air conditioner and the measured outdoor environment temperature condition, selecting to control capacity output of the multi-split air conditioner according to the system pressure or the outlet air temperature. By applying the technical scheme of the invention, the running status and the running condition of a multi-split air conditioning system can be effectively judged, different regulating modes are effectively switched according to the different parameter conditions, and comfortableness and reliable and effective operation of the multi-split air conditioner provided with a new fan and a common indoor machine are both guaranteed under the control of the control system.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of control method of multi-gang air-conditioner and the control system of multi-gang air-conditioner.
Background technology
Multiple on-line system is for other air-conditioning system, and maximum difference can have multiple stage off-premises station and multiple stage indoor set in a system, and the indoor set form can arranging in pairs or groups different and kind.Along with people's improving constantly air-conditioning purity requirements, the use of new wind formula air-conditioning also more and more becomes a kind of trend.The feature of new wind formula air-conditioning is the design adopting outside to connect return air inlet, directly outdoor air can be introduced indoor for indoor environment through process and a healthy air ambient is provided, its working condition run and general room machine difference comparatively greatly, show that the difference of system aspects is exactly that system high-low pressure and general through-inner-machine difference are larger.A multi-online air-conditioning system, if a kind of existing general room machine has again the hybrid junction system of new wind formula indoor set, will take into account the running status of two kinds of dissimilar air-conditioners.When designing multi-online air-conditioning system, if do not consider new wind formula air-conditioner, and just export control according to the ruuning situation designed capacity of general room machine, system pressure may be caused lower, new blower fan is low to be forced down, leaving air temp is low, is unfavorable for the comfortableness that user uses, and the too low pressure of new blower fan and leaving air temp easily cause refrigerant, and heat exchange is insufficient and occur back the situation of liquid in systems in which; If only consider that the control ability of new blower fan exports, result is exactly that system pressure is higher, and leaving air temp is high, and ability exports improper, causes common interior mechanism cold weak effect, does not reach the object of air conditioner refrigerating.
In prior art, there is no the different machine collocation mode that there is new blower fan and general room machine for this and service condition and carry out the multi-connected air conditioning system that rational control ability output takes into account to reach comfortableness and reliability.
Summary of the invention
The present invention aims to provide a kind of control method of multi-gang air-conditioner and the control system of multi-gang air-conditioner, to solve the technical problem that control system of the prior art cannot carry out for the multi-gang air-conditioner having new blower fan and general room machine concurrently reasonably controlling.
To achieve these goals, according to an aspect of the present invention, provide a kind of control method of multi-gang air-conditioner, multi-gang air-conditioner comprises new wind indoor set, comprise the following steps: S1, measure the suction and discharge temperature of the leaving air temp of new wind indoor set, outdoor environment temperature, the system pressure of multi-gang air-conditioner and the compressor of multi-gang air-conditioner as controling parameters; S2, selects to take according to system pressure or the ability output controlling multi-gang air-conditioner according to leaving air temp according to capacity situation and the described ambient temperature situations recorded of new wind indoor set.
Further, also comprise step: S3, if the system pressure recorded exceeds preset scope, then switch to the ability output controlling multi-gang air-conditioner according to system pressure.
Further, also comprise step: S4, if the leaving air temp of the new wind indoor set recorded exceeds preset target temperature range, then switch to the ability output controlling multi-gang air-conditioner according to leaving air temp.
Further, also comprise step: S5, detect that systematic parameter enters preset abnormal ranges if be in operation, be then switched to the ability output controlling multi-gang air-conditioner according to system pressure.
Further, systematic parameter comprises at least one item in system pressure, the degree of superheat, degree of supercooling, low voltage value, suction and discharge temperature.
Further, also comprise step: S6, after stable operation Preset Time, according to the control mode that controling parameters revised ability exports.
Further, capacity situation according to new wind indoor set is selected to take the control of foundation system pressure or according to the concrete grammar that the ability of leaving air temp control multi-gang air-conditioner exports be with the outdoor environment temperature situation recorded: environment temperature more than 35 DEG C, if the capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, control according to new blower fan leaving air temp, otherwise control according to system pressure; Environment temperature 10 DEG C to 35 DEG C, if the capacity running new blower fan is less than or equal to 50% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to system pressure; Environment temperature 0 DEG C to 10 DEG C, if the capacity running new blower fan is less than or equal to 40% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to system pressure; Environment temperature-5 DEG C is to 0 DEG C, if the capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to system pressure; Environment temperature less than-5 DEG C, if the capacity running new blower fan is less than or equal to 20% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to system pressure.
According to a further aspect in the invention, provide a kind of control system of multi-gang air-conditioner, multi-gang air-conditioner comprises new wind indoor set, comprising: air-out temperature-sensitive bag, measures the leaving air temp of new wind indoor set; Ambient temperature sensor, measures the outdoor environment temperature of multi-gang air-conditioner; Pressure sensor, measures the system pressure of multi-gang air-conditioner; According to capacity situation and the outdoor environment temperature situation recorded of multi-gang air-conditioner, judge module, judges that the ability selecting to take to control according to system pressure control or foundation leaving air temp multi-gang air-conditioner exports; Control module, has the first control model making control system take the ability controlling multi-gang air-conditioner according to system pressure to export and the second control model exported according to the ability that leaving air temp controls multi-gang air-conditioner.
Further, also comprise: exhaust temperature-sensitive bag, measure the suction and discharge temperature of compressor.
Further, pressure sensor comprises high pressure sensor and low pressure sensor.
Further, judge module, according to the system pressure exceeding presetting range, switches to the ability output controlling multi-gang air-conditioner according to system pressure.
Further, judge module according to the leaving air temp of new wind indoor set exceeding preset target temperature range, then switches to the ability controlling multi-gang air-conditioner according to leaving air temp to export.
Further, judge module, according to the systematic parameter entering preset abnormal ranges, is switched to the ability output controlling multi-gang air-conditioner according to system pressure.
Further, systematic parameter comprises at least one item in system pressure, the degree of superheat, degree of supercooling, low voltage value, suction and discharge temperature.
Further, control module has the operational mode according to the control mode of controling parameters revised ability output after stable operation Preset Time.
Apply technical scheme of the present invention, effectively can judge running status and the ruuning situation of multi-online air-conditioning system, effectively switch different regulative modes according to different parameter situations, the multi-gang air-conditioner ensureing to have concurrently new blower fan and general room machine takes into account effective operation of comfortableness and reliability under control of the control system.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram of multi-gang air-conditioner control system of the present invention.
Description of reference numerals: 1, outdoor heat exchanger; 2, general room machine; 3, new wind indoor set; 4, gas-liquid separator; 5, frequency-changeable compressor; 6, temperature-sensitive bag is vented; 7, high pressure sensor; 8, air-out temperature-sensitive bag; 9, low pressure sensor.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
The multi-gang air-conditioner that the present invention is directed to comprises outdoor heat exchanger 1, general room machine 2, new wind indoor set 3, frequency-changeable compressor 5 and the gas-liquid separator 4 be connected with compressor.
Multi-gang air-conditioner control system of the present invention comprises: be arranged on the exhaust temperature-sensitive bag 6 on compressor outlet pipeline and high pressure sensor 7, is arranged on the air-out temperature-sensitive bag 8 of new wind indoor set 3, is arranged on the low pressure sensor 9 in pipeline in addition.Wherein the leaving air temp of new wind indoor set 3 measured by air-out temperature-sensitive bag 8, and high pressure sensor 7 and low pressure sensor 9 record the system pressure of multi-gang air-conditioner, and exhaust temperature-sensitive bag 6 records the suction and discharge temperature of compressor.In addition, ambient temperature sensor measurement environment temperature is also provided with.
The ability of the control mode that multi-gang air-conditioner control method of the present invention utilizes multiple on-line system common and new wind formula multi-unit air conditioner exports the one control of control mode feature combination.The present invention needs the data gathered to be: 1, the leaving air temp of new wind indoor set; 2, environment temperature; 3, the system pressure of multiple on-line system; 4, the outer machine running state parameter such as compressor suction and discharge temperature of new blower fan system.
First, the present invention carrys out decision-making system according to the new capacity situation of wind indoor set 3 of hybrid junction and the ambient temperature situations of unit operation and according to which kind of mode control system ability exports, and ability exports the output frequency situation namely referring to frequency-changeable compressor.System capability control mode of the present invention mainly comprises two kinds, one controls for ability of carrying out according to system pressure conditions exports, compare according to the preset goal systems pressure in the system pressure of unit operation situation and primary control program, carry out regulating system ability by reduced pressure situation and export.Its two be leaving air temp control ability export mode, this mode is for the situation that there is general room machine 2 and new wind indoor set 3 hybrid junction in system.The leaving air temp that new blower fan air-out temperature-sensitive bag 8 gathers new wind indoor set 3 carrys out regulating system ability and exports.
Secondly, multi-gang air-conditioner control system of the present invention judges whether suitable current regulative mode is, if the air conditioning effect of common unit is poor, namely the pressure parameter of system and the preset judgement scope of program differ more situation, then preferentially switch to the pattern that system pressure regulates, otherwise, if the leaving air temp command range target leaving air temp difference of new blower fan is comparatively large, then switch to the pattern that leaving air temp controls.
Finally, multiple on-line system needs the reliability of preferential guarantee system, detect that if be in operation the systematic parameters such as the pressure of system or delivery temperature are abnormal, need the pattern being switched to the output of system pressure regulating power at once, the even pattern of operating pressure forced adjustment ability, ensures the reliability of system cloud gray model.
Multi-gang air-conditioner control system judgement output of the present invention and the Main Basis regulated are leaving air temp and the system high-low pressure of indoor units, need other parameter information summaries of coupling system to judge simultaneously, then carry out the switching of capacity adjustment pattern.
Multi-gang air-conditioner control system of the present invention can judge according to the ability of new wind indoor set participation system cloud gray model and environment temperature, system gathers ambient temperature data by temperature-sensitive bag, these data start capacity situation together with indoor set and are aggregated in control mainboard, through built-in relevant pre-set programs comparative analysis, select a kind of capability control mode.
Due in the multiple on-line system comprising new blower fan and general room machine, the air conditioning effect of common multi-joint indoor set should be considered, i.e. cooling and warming ability, consider the treatment effect of new blower fan for new wind air again.This relates to two kinds of units for the distribution of system capability and adjustment problem.Under different environmental working conditions, the heat exchange situation of each indoor set is different, particularly fresh air processor wherein embody just more obvious.When new fan operation load is larger, can not meet leaving air temp setting when requiring, if increase ability still simply exports, easily cause the ability of general room machine also to increase together and control to lose efficacy, even part refrigerant returns liquid from general room pusher side and enters system low-voltage side.Otherwise, if when new blower fan start load allows, only consider general room machine and do not consider new blower fan air-out air-treatment situation, new Fan Regulation effect is easily caused to be lacked of proper care, even occur that the situation appearance of refrigerant fought for by new blower fan and general room machine, also be unfavorable for the use of system, capacity adjustment effect is also in de-synchronization state.For this situation, the situation of operating load of starting shooting at different ambient temperatures according to the environment temperature used and new blower fan, multi-online air-conditioning system of the present invention has carried out interval division to capacity adjustment pattern.
Apply the program of the inner preset judgement of control mainboard of multi-online air-conditioning system unit of the present invention, these programs determine according to different unit operation situations.The ability ratio that the present invention accounts for whole system according to new blower fan system decides control mode,
A preferred embodiment is as follows: the multi-joint outdoor unit of a 10kw, when different according to new blower fan start capacity, after the control reasonability of unit and comfortableness experimental analysis, determine one and judges interval: (seeing the following form)
(as do not meet surface condition and then control according to system pressure.Such as environment temperature more than 35 DEG C, outer machine rated capacity 10KW, the interior machine all told 10KW that connects, new blower fan rated capacity is greater than 3KW, then control according to system pressure.）
As seen from the table, the capacity of selection based on new blower fan of above control method and the ratio of outside unit capacity.
Particularly, environment temperature more than 35 DEG C, if the rated capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature 10 DEG C to 35 DEG C, if the capacity running new blower fan is less than or equal to 50% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature 0 DEG C to 10 DEG C, if the capacity running new blower fan is less than or equal to 40% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature-5 DEG C is to 0 DEG C, if the capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, controls, otherwise control according to described system pressure according to new blower fan leaving air temp;
Environment temperature less than-5 DEG C, if the capacity running new blower fan is less than or equal to 20% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure.
The foundation of control method is that new fan operation operating mode is different from common multi-joint indoor set, its operating mode run wants severe many, the result caused is that increase sharply systematically runs burden, has shunted more cold medium flux, even may the reliability operation situation of influential system.Therefore under the running status of high temperature or ultralow temperature, the impact that new blower fan brings to system is more outstanding, if do not consider to meet ability to bear under different operating condition, is very easy to bring operation hidden danger to system.
Apply new wind multiple on-line system of the present invention can carry out ability output mode switching selection according to the system mode of actual motion.After new wind multiple on-line system judges selective power output mode according to preliminary temperature and new fan operation capacity, system is in the normal state run.
After stable operation a period of time, this time is determined according to different types and control thought, and new wind multiple on-line system revised ability can export control mode targetedly according to running status situation.If under the control model of system pressure control ability output, system judges that new blower fan leaving air temp differs comparatively large with new blower fan target set temperature, under system can automatically switch to the control model of leaving air temp control ability output.
Illustrate: when system is environment temperature 30 DEG C, new blower fan indoor set working capacity 6kw, off-premises station capacity is when 10kw, control mainboard according to the relative program preset, have selected and export according to system high-low pressure ability of carrying out the mode controlled, after having run one stable period, mainboard control program can calculate the difference of the actual leaving air temp of new blower fan and goal-setting leaving air temp, then the target difference of this difference and control program is contrasted.Suppose in this case, the target difference preset is 10 DEG C, if the absolute value of actual leaving air temp and difference comparsion is greater than target difference 10 DEG C, system automatically switches into and exports control according to new blower fan target leaving air temp ability of carrying out.Otherwise, also can switch to the system pressure control ability way of output according to the system pressure situation that differs by the leaving air temp ability way of output.
Control system of the present invention, in order to ensure the safe and reliable of system, exports control mode according to other important parameter selective powers of system.In order to reach the requirement of air-out target temperature, the flow adjusting range that system refrigerant also can pass through from new blower fan side is accordingly larger, under some operating mode and service condition, may there is back liquid or discharge superheat etc. and be unfavorable for the situation that system is run reliably and with long-term in multi-joint new blower fan system.Now multi-joint off-premises station mainboard control system can control according to some parameters such as the degree of superheat, degree of supercooling, low voltage value, compressor exhaust temperature collected, once occur that parameter exceedes the situation of setting range, automatically switch to the regulative mode ensureing that the reliable Stress control of system cloud gray model exports.
When system is run under the operational mode that new blower fan leaving air temp control ability exports; once situation systematic parameter (degree of superheat, degree of supercooling, low voltage value, compressor exhaust temperature) exception or over range being detected, need to switch to the operational mode that system pressure controls output at once.These parameters comprise the delivery temperature of compressor, once detect that the delivery temperature of compressor is higher, need the pattern switching control ability output at once, mostly situation that system exhaust temperature is higher is to cause due to refrigerant circulation quantity not sufficient in multiple on-line system, exhaust protection is caused even to jeopardize compressor operating reliability if this situation is treated to not in time, and this situation generally also occurs along with high pressure is higher simultaneously, when now switching to system pressure control at once, system adapts to cold and detached internal circulating load deficiency according to the control that high pressure can carry out the output of minimizing ability at once and causes compressor to cool bad situation, finally reach the object controlling delivery temperature protection compressor.
From above description, can find out, present invention achieves following technique effect: the running status and the ruuning situation that effectively judge multi-connected machine hybrid junction system, regulative modes different according to different control mode switchings timely and effectively, ensure effective operation that new blower fan and general room machine comfortableness and reliability under Systematical control are taken into account, embodying multi-connected machine controls accurately, comfortable energy-conservation efficient feature.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. a control method for multi-gang air-conditioner, described multi-gang air-conditioner comprises new wind indoor set (3), it is characterized in that, comprises the following steps:
S1, measures the suction and discharge temperature of the leaving air temp of described new wind indoor set (3), outdoor environment temperature, the system pressure of described multi-gang air-conditioner and the compressor of described multi-gang air-conditioner as controling parameters;
S2, selects to take the ability controlling or control according to described leaving air temp described multi-gang air-conditioner according to described system pressure to export according to capacity situation and the described outdoor environment temperature situation recorded of described multi-gang air-conditioner.
2. the control method of multi-gang air-conditioner according to claim 1, is characterized in that, also comprises step:
S3, if the described system pressure recorded exceeds preset scope, then switches to the ability output controlling described multi-gang air-conditioner according to described system pressure.
3. the control method of multi-gang air-conditioner according to claim 2, is characterized in that, also comprises step:
S4, if the leaving air temp of the described new wind indoor set (3) recorded exceeds preset target temperature range, then switches to the ability output controlling described multi-gang air-conditioner according to described leaving air temp.
4. the control method of multi-gang air-conditioner according to claim 2, is characterized in that, also comprises step:
If be in operation, S5, detects that systematic parameter enters preset abnormal ranges, be then switched to the ability output controlling described multi-gang air-conditioner according to described system pressure.
5. the control method of multi-gang air-conditioner according to claim 4, is characterized in that,
Described systematic parameter comprises at least one item in described system pressure, the degree of superheat, degree of supercooling, low voltage value, described suction and discharge temperature.
6. the control method of multi-gang air-conditioner according to claim 2, is characterized in that, also comprises step:
S6, after stable operation Preset Time, according to the control mode that described controling parameters revised ability exports.
7. the control method of multi-gang air-conditioner according to claim 1, it is characterized in that, according to the concrete grammar that capacity situation and the described outdoor environment temperature situation selection recorded of described new wind indoor set (3) take the ability controlling or control according to described leaving air temp described multi-gang air-conditioner according to described system pressure to export be:
Environment temperature more than 35 DEG C, if the capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature 10 DEG C to 35 DEG C, if the capacity running new blower fan is less than or equal to 50% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature 0 DEG C to 10 DEG C, if the capacity running new blower fan is less than or equal to 40% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure;
Environment temperature-5 DEG C is to 0 DEG C, if the capacity running new blower fan is less than or equal to 30% of outer machine rated capacity, controls, otherwise control according to described system pressure according to new blower fan leaving air temp;
Environment temperature less than-5 DEG C, if the capacity running new blower fan is less than or equal to 20% of outer machine rated capacity, controls according to new blower fan leaving air temp, otherwise controls according to described system pressure.
8. a control system for multi-gang air-conditioner, described multi-gang air-conditioner comprises new wind indoor set (3), it is characterized in that, comprising:
Air-out temperature-sensitive bag (8), measures the leaving air temp of new wind indoor set (3);
Ambient temperature sensor, measures the outdoor environment temperature of described multi-gang air-conditioner;
Pressure sensor, measures the system pressure of described multi-gang air-conditioner;
Judge module, judges to select to take the ability controlling or control according to described leaving air temp described multi-gang air-conditioner according to described system pressure to export according to capacity situation and the described outdoor environment temperature situation recorded of described multi-gang air-conditioner;
Control module, has the first control model making described control system take the ability controlling described multi-gang air-conditioner according to described system pressure to export and the second control model exported according to the ability that described leaving air temp controls described multi-gang air-conditioner.
9. the control system of multi-gang air-conditioner according to claim 8, is characterized in that, also comprises: exhaust temperature-sensitive bag (6), measures the suction and discharge temperature of compressor.
10. the control system of multi-gang air-conditioner according to claim 8, is characterized in that, described pressure sensor comprises high pressure sensor (7) and low pressure sensor (9).
The control system of 11. multi-gang air-conditioners according to claim 8, is characterized in that, described judge module, according to the described system pressure exceeding presetting range, switches to the ability output controlling described multi-gang air-conditioner according to described system pressure.
The control system of 12. multi-gang air-conditioners according to claim 8, it is characterized in that, described judge module according to the leaving air temp of described new wind indoor set (3) exceeding preset target temperature range, then switches to the ability controlling described multi-gang air-conditioner according to described leaving air temp to export.
The control system of 13. multi-gang air-conditioners according to claim 8, is characterized in that, described judge module, according to the systematic parameter entering preset abnormal ranges, is switched to the ability output controlling described multi-gang air-conditioner according to described system pressure.
The control system of 14. multi-gang air-conditioners according to claim 13, is characterized in that, described systematic parameter comprises at least one item in described system pressure, the degree of superheat, degree of supercooling, low voltage value, suction and discharge temperature.
The control system of 15. multi-gang air-conditioners according to claim 8, is characterized in that, described control module has the operational mode according to the control mode of controling parameters revised ability output after stable operation Preset Time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401518.1A CN104422072B (en) | 2013-09-05 | 2013-09-05 | The control method of multi-gang air-conditioner and the control system of multi-gang air-conditioner |
| PCT/CN2014/082750 WO2015032244A1 (en) | 2013-09-05 | 2014-07-22 | Method for controlling multi-split air conditioner, and system for controlling multi-split air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310401518.1A CN104422072B (en) | 2013-09-05 | 2013-09-05 | The control method of multi-gang air-conditioner and the control system of multi-gang air-conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104422072A true CN104422072A (en) | 2015-03-18 |
| CN104422072B CN104422072B (en) | 2017-03-15 |
Family
ID=52627775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310401518.1A Active CN104422072B (en) | 2013-09-05 | 2013-09-05 | The control method of multi-gang air-conditioner and the control system of multi-gang air-conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104422072B (en) |
| WO (1) | WO2015032244A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172819A (en) * | 2015-08-07 | 2015-12-23 | 中国北车集团大连机车研究所有限公司 | Air-condition electronic control system for electric locomotive and control method thereof |
| CN105605753A (en) * | 2016-01-26 | 2016-05-25 | 上海交通大学 | Fresh air supply temperature control system based on variable refrigerant volume (VRV) and fresh air fan hybrid air-conditioning system |
| CN105757893A (en) * | 2016-03-23 | 2016-07-13 | 广东美的暖通设备有限公司 | Heat exchange control method of multi-unit system and outdoor heat exchanger thereof |
| CN106440042A (en) * | 2016-10-19 | 2017-02-22 | 深圳沃海森科技有限公司 | Intelligent constant temperature, constant humidity, constant cleanness and constant oxygen air conditioning system for building |
| CN107655166A (en) * | 2017-09-18 | 2018-02-02 | 广东美的暖通设备有限公司 | Control method, system and the computer-readable recording medium of multi-connected air conditioner |
| CN107860103A (en) * | 2017-10-27 | 2018-03-30 | 广东美的暖通设备有限公司 | The control method of multiple on-line system, device and there is its system |
| CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
| CN108469096A (en) * | 2018-03-21 | 2018-08-31 | 国网上海市电力公司 | A kind of switch gear room's temperature control system |
| CN110953651A (en) * | 2018-09-26 | 2020-04-03 | 财团法人工业技术研究院 | Air conditioning system |
| CN112486014A (en) * | 2020-11-24 | 2021-03-12 | 江苏兆胜空调有限公司 | Load distribution control method for refrigeration multi-split system |
| CN113028575A (en) * | 2021-04-22 | 2021-06-25 | 宁波奥克斯电气股份有限公司 | Target exhaust gas temperature correction method, target exhaust gas temperature correction device, electronic apparatus, and storage medium |
| CN113465096A (en) * | 2021-05-18 | 2021-10-01 | 宁波奥克斯电气股份有限公司 | Multi-split outdoor unit operation control method and device and air conditioner |
| US11137157B2 (en) | 2017-09-18 | 2021-10-05 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Method for controlling multi-split air conditioner, multi-split air conditioner system, and computer-readable storage medium |
| WO2022037096A1 (en) * | 2020-08-17 | 2022-02-24 | 广东美的制冷设备有限公司 | Multi-split air conditioner and control method therefor, air conditioner control apparatus, and readable storage medium |
| CN114216203A (en) * | 2021-12-16 | 2022-03-22 | 珠海格力电器股份有限公司 | Self-cleaning control method of multi-split air conditioner and multi-split air conditioner |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106996596B (en) * | 2017-04-18 | 2023-09-19 | 珠海格力电器股份有限公司 | Air conditioning system and waste heat recovery method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09273797A (en) * | 1996-04-04 | 1997-10-21 | Hitachi Ltd | Multi-chamber air conditioner |
| JP3043770B2 (en) * | 1990-01-12 | 2000-05-22 | 株式会社日立製作所 | Air conditioner |
| CN101592388A (en) * | 2008-05-27 | 2009-12-02 | 海尔集团公司 | A kind of control method of complete machine capability of variable-capacity multi-connected unit and system |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
| CN102121741A (en) * | 2011-03-14 | 2011-07-13 | 广东美的电器股份有限公司 | Multi-connection air conditioning unit and control method thereof during small-load refrigeration running |
| JP2011202913A (en) * | 2010-03-26 | 2011-10-13 | Mitsubishi Heavy Ind Ltd | Multi air conditioning device |
| CN203443023U (en) * | 2013-09-05 | 2014-02-19 | 珠海格力电器股份有限公司 | Control system of multi-split air conditioner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004020064A (en) * | 2002-06-18 | 2004-01-22 | Fujitsu General Ltd | Method for controlling multi-chamber type air conditioner |
| JP2006322617A (en) * | 2005-05-17 | 2006-11-30 | Hitachi Ltd | Multiple type air conditioner |
| JP5695861B2 (en) * | 2010-08-20 | 2015-04-08 | 三菱重工業株式会社 | Outside air processing air conditioner and multi air conditioning system using the same |
-
2013
- 2013-09-05 CN CN201310401518.1A patent/CN104422072B/en active Active
-
2014
- 2014-07-22 WO PCT/CN2014/082750 patent/WO2015032244A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3043770B2 (en) * | 1990-01-12 | 2000-05-22 | 株式会社日立製作所 | Air conditioner |
| JPH09273797A (en) * | 1996-04-04 | 1997-10-21 | Hitachi Ltd | Multi-chamber air conditioner |
| CN101592388A (en) * | 2008-05-27 | 2009-12-02 | 海尔集团公司 | A kind of control method of complete machine capability of variable-capacity multi-connected unit and system |
| JP2011202913A (en) * | 2010-03-26 | 2011-10-13 | Mitsubishi Heavy Ind Ltd | Multi air conditioning device |
| CN102003773A (en) * | 2010-11-25 | 2011-04-06 | 佛山市中格威电子有限公司 | Shunt compensation control system of inverter-driven multi-split air conditioner |
| CN102121741A (en) * | 2011-03-14 | 2011-07-13 | 广东美的电器股份有限公司 | Multi-connection air conditioning unit and control method thereof during small-load refrigeration running |
| CN203443023U (en) * | 2013-09-05 | 2014-02-19 | 珠海格力电器股份有限公司 | Control system of multi-split air conditioner |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105172819B (en) * | 2015-08-07 | 2018-02-13 | 中国北车集团大连机车研究所有限公司 | Use for electric locomotive air conditioner electric control system and its control method |
| CN105172819A (en) * | 2015-08-07 | 2015-12-23 | 中国北车集团大连机车研究所有限公司 | Air-condition electronic control system for electric locomotive and control method thereof |
| CN105605753A (en) * | 2016-01-26 | 2016-05-25 | 上海交通大学 | Fresh air supply temperature control system based on variable refrigerant volume (VRV) and fresh air fan hybrid air-conditioning system |
| CN105605753B (en) * | 2016-01-26 | 2018-03-06 | 上海交通大学 | Fresh air air-supply temperature control system based on multi-connected machine and new blower fan composite air conditioner system |
| CN105757893A (en) * | 2016-03-23 | 2016-07-13 | 广东美的暖通设备有限公司 | Heat exchange control method of multi-unit system and outdoor heat exchanger thereof |
| CN105757893B (en) * | 2016-03-23 | 2019-01-18 | 广东美的暖通设备有限公司 | The heat exchange control of multi-line system and its outdoor heat exchanger |
| CN106440042A (en) * | 2016-10-19 | 2017-02-22 | 深圳沃海森科技有限公司 | Intelligent constant temperature, constant humidity, constant cleanness and constant oxygen air conditioning system for building |
| CN107655166B (en) * | 2017-09-18 | 2020-05-22 | 广东美的暖通设备有限公司 | Control method and system of multi-connected air conditioner and computer readable storage medium |
| CN107655166A (en) * | 2017-09-18 | 2018-02-02 | 广东美的暖通设备有限公司 | Control method, system and the computer-readable recording medium of multi-connected air conditioner |
| US11137157B2 (en) | 2017-09-18 | 2021-10-05 | Gd Midea Heating & Ventilating Equipment Co., Ltd. | Method for controlling multi-split air conditioner, multi-split air conditioner system, and computer-readable storage medium |
| CN107860103A (en) * | 2017-10-27 | 2018-03-30 | 广东美的暖通设备有限公司 | The control method of multiple on-line system, device and there is its system |
| CN107860103B (en) * | 2017-10-27 | 2020-04-03 | 广东美的暖通设备有限公司 | Control method and device of multi-split system and system with control device |
| CN108386974B (en) * | 2018-01-29 | 2021-11-02 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air conditioning unit and control method thereof |
| CN108386974A (en) * | 2018-01-29 | 2018-08-10 | 青岛海尔空调电子有限公司 | Air-cooled magnetic suspension air-conditioner set and its control method |
| CN108469096A (en) * | 2018-03-21 | 2018-08-31 | 国网上海市电力公司 | A kind of switch gear room's temperature control system |
| CN110953651A (en) * | 2018-09-26 | 2020-04-03 | 财团法人工业技术研究院 | Air conditioning system |
| WO2022037096A1 (en) * | 2020-08-17 | 2022-02-24 | 广东美的制冷设备有限公司 | Multi-split air conditioner and control method therefor, air conditioner control apparatus, and readable storage medium |
| CN112486014A (en) * | 2020-11-24 | 2021-03-12 | 江苏兆胜空调有限公司 | Load distribution control method for refrigeration multi-split system |
| WO2022110440A1 (en) * | 2020-11-24 | 2022-06-02 | 江苏兆胜空调有限公司 | Load distribution control method for refrigerating vacuum reducer valve system |
| CN112486014B (en) * | 2020-11-24 | 2024-04-05 | 江苏兆胜空调有限公司 | Load distribution control method for refrigeration multi-split system |
| CN113028575A (en) * | 2021-04-22 | 2021-06-25 | 宁波奥克斯电气股份有限公司 | Target exhaust gas temperature correction method, target exhaust gas temperature correction device, electronic apparatus, and storage medium |
| CN113028575B (en) * | 2021-04-22 | 2022-04-19 | 宁波奥克斯电气股份有限公司 | Target exhaust gas temperature correction method, target exhaust gas temperature correction device, electronic apparatus, and storage medium |
| CN113465096A (en) * | 2021-05-18 | 2021-10-01 | 宁波奥克斯电气股份有限公司 | Multi-split outdoor unit operation control method and device and air conditioner |
| CN113465096B (en) * | 2021-05-18 | 2022-09-09 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioner and method and device for controlling operation of outdoor unit of multi-split air conditioner |
| CN114216203A (en) * | 2021-12-16 | 2022-03-22 | 珠海格力电器股份有限公司 | Self-cleaning control method of multi-split air conditioner and multi-split air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015032244A1 (en) | 2015-03-12 |
| CN104422072B (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104422072A (en) | Control method for multi-split air conditioner and control system of multi-split air conditioner | |
| CN203443023U (en) | Control system of multi-split air conditioner | |
| CN107940827B (en) | Multi-split air conditioning system and refrigerant distribution control method and device thereof | |
| CN107514734B (en) | Air-conditioning strength refrigeration control method | |
| CN104110792B (en) | Control method and device for air conditioning system | |
| CN107940826B (en) | Multi-split air conditioning system and refrigerant distribution control method and device thereof | |
| CN109210682A (en) | The self-cleaning control method and device of air-conditioning, air conditioner, storage medium | |
| CN111023401B (en) | Dehumidification control method of air conditioner and air conditioner | |
| CN101113834B (en) | Method of controlling air conditioner | |
| CN102865646B (en) | Air-conditioning apparatus | |
| EP2148147B1 (en) | Method of controlling air conditioner | |
| US10670296B2 (en) | System and method of adjusting compressor modulation range based on balance point detection of the conditioned space | |
| CN109028676A (en) | A kind of control method of the motor compressor of new-energy automobile, apparatus and system | |
| CN110671777A (en) | Control method and device of air conditioner and air conditioner | |
| CN105650810B (en) | Control method, single cold type air conditioner and the heating and air conditioner of air conditioner | |
| CN113405240B (en) | Control method and control device for synchronous multi-split air conditioner, air conditioner and storage medium | |
| CN207422557U (en) | Air-conditioning system | |
| CN111637526B (en) | Control method of mixed and collocated multi-split system | |
| CN111637527B (en) | Accurate control method of multi-split system | |
| KR20200004521A (en) | Cooling control method for air conditioner | |
| JP2016138666A (en) | Air conditioner | |
| CN109140719A (en) | A method of control air conditioning exhausting temperature | |
| CN112856714B (en) | Refrigerant flow control method and device, electronic equipment and air conditioner | |
| EP1956306B1 (en) | Multi-system air-conditioner and method for controlling the same | |
| CN112902486A (en) | Constant temperature and humidity unit and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |