CN107388662A - Air-conditioning/source pump and its control method and device - Google Patents

Air-conditioning/source pump and its control method and device Download PDF

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Publication number
CN107388662A
CN107388662A CN201710631230.1A CN201710631230A CN107388662A CN 107388662 A CN107388662 A CN 107388662A CN 201710631230 A CN201710631230 A CN 201710631230A CN 107388662 A CN107388662 A CN 107388662A
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China
Prior art keywords
water temperature
module machine
compressor
unit
frequency
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Granted
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CN201710631230.1A
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CN107388662B (en
Inventor
张建新
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201710631230.1A priority Critical patent/CN107388662B/en
Publication of CN107388662A publication Critical patent/CN107388662A/en
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    • 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
    • F25B49/022—Compressor control arrangements

Abstract

The invention discloses a kind of air-conditioning/source pump and its control method and device, the described method comprises the following steps：In the running of unit, if unit is less than default target water temperature with total output water temperature of heating mode operation and unit or unit is run in a chiller mode and total output water temperature of unit is more than default target water temperature, judge whether the compressor operating frequency of each module machine in the module machine in running status reaches the higher limit of corresponding optimized operation frequency range；If, + 1 module machine of kth is then controlled to open, and the lower limit of optimized operation frequency range corresponding to being not up in the compressor operating frequency of+1 module machine of kth and when total output water temperature reaches default target water temperature, frequency reducing control is carried out to the compressor of k module machine and the compressor to+1 module machine of kth carries out raising frequency control, so that the compressor operating frequency in running status is in optimized operation frequency range, so as to improve the efficiency of unit.

Description

Air-conditioning/source pump and its control method and device
Technical field
The present invention relates to air-conditioning technical field, more particularly to a kind of control method of air-conditioning/source pump, a kind of air-conditioning/ The control device of source pump and a kind of air-conditioning/source pump with the control device.
Background technology
For multiple module machines air-conditioning/source pump in parallel, the ability difference exported is needed under different thermic loads very Greatly, whole system how is made to run on optimal efficiency point as far as possible, it is necessary to angle pair from system under various different loads The operation of all module machines carries out comprehensive adjustment.
The adjusting method of existing multiple module machines air-conditioning/source pump in parallel is by detecting leaving water temperature and target Difference between water temperature, if leaving water temperature is not reaching to target water temperature, increase has been turned on the compressor frequency of module machine, together When every one section of set time start next module machine.This adjusting method causes the compressor operating of the module machine first started In upper frequency section, the compressor operating of the module machine started afterwards is in lower frequency section, and for frequency conversion system, high band It is all relatively low with low-frequency range efficiency, so that the efficiency of whole system is relatively low.
The content of the invention
It is contemplated that at least solves one of technical problem in above-mentioned technology to a certain extent.Therefore, the present invention First purpose be to propose a kind of control method of air-conditioning/source pump, by carrying out systematization regulation to whole unit, most Limits make the compressor operating of each module machine improve the efficiency of whole unit, effectively in optimized operation frequency range Avoid part of module machine and run on high band, another part module machine runs on low-frequency range, causes unit entirety efficiency low Problem.
Second object of the present invention is to propose a kind of computer-readable recording medium.
Third object of the present invention is to propose a kind of control device of air-conditioning/source pump.
Fourth object of the present invention is to propose a kind of air-conditioning/source pump.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control method of air-conditioning/source pump, The unit includes N number of module machine in parallel, and each module machine includes compressor, wherein, N is integer more than or equal to 2, institute Control method is stated to comprise the following steps：Obtain the optimized operation frequency range of compressor corresponding during each module machine operation； In the running of the unit, if the unit is run with heating mode and total output water temperature of the unit is less than in advance If target water temperature or the unit run in a chiller mode and total output water temperature of the unit is more than default target water Temperature, then judge whether the compressor operating frequency of each module machine in the module machine in running status reaches corresponding optimal The higher limit of running frequency scope, wherein, the quantity of the module machine in running status is k, k ＜ N；If in operation The compressor operating frequency of each module machine reaches the higher limit of corresponding optimized operation frequency range in the module machine of state, + 1 module machine of kth is then controlled to open, and it is not up to corresponding optimal in the compressor operating frequency of+1 module machine of kth The lower limit of running frequency scope and when total output water temperature reaches default target water temperature, to the compressor of k module machine Carry out frequency reducing control and the compressor to described+1 module machine of kth carries out raising frequency control, to reach in total output water temperature The compressor operating frequency of k+1 module machine is controlled to be in corresponding optimized operation frequency range during default target water temperature It is interior.
The control method of air-conditioning/source pump according to embodiments of the present invention, it is right first to obtain each module machine operation when institute The optimized operation frequency range for the compressor answered, in the running of unit, if unit is run with heating mode and unit Total output water temperature be less than default target water temperature or unit run in a chiller mode and total output water temperature of unit be more than it is pre- If target water temperature, then judge whether the compressor operating frequency of each module machine in the module machine in running status reaches The higher limit of corresponding optimized operation frequency range, wherein, if in the module machine in running status each module machine pressure Contracting machine running frequency reaches the higher limit of corresponding optimized operation frequency range, then controls+1 module machine of kth to open, and The compressor operating frequency of+1 module machine of kth is not up to the lower limit of corresponding optimized operation frequency range and total output water temperature When reaching default target water temperature, frequency reducing control and the compressor to+1 module machine of kth are carried out to the compressor of k module machine Raising frequency control is carried out, to control the compressor operating frequency of k+1 module machine when total output water temperature reaches default target water temperature Rate is in corresponding optimized operation frequency range.This method to whole unit by carrying out systematization regulation, to greatest extent The compressor operating of each module machine is improved the efficiency of whole unit in optimized operation frequency range, is effectively prevent Part of module machine runs on high band, and another part module machine runs on low-frequency range, the problem of causing unit entirety efficiency low.
According to one embodiment of present invention, frequency reducing control is carried out and to the kth+1 to the compressor of k module machine The compressor of module machine carries out raising frequency control, including：The compressor operating frequency of k-th of module machine is reduced, and raises the kth The compressor operating frequency of+1 module machine；It is optimal corresponding to being reduced to when the compressor operating frequency of k-th of module machine The still not up to corresponding optimized operation of the compressor operating frequency of+1 module machine of the lower limit of running frequency scope and the kth During the lower limit of frequency range, the compressor of k-th of module machine is controlled to stop frequency reducing, and reduce -1 module machine of kth Compressor operating frequency and continue to raise the compressor operating frequency of+1 module machine of kth, until described+1 module of kth The compressor operating frequency of machine is increased to the lower limit of corresponding optimized operation frequency range.
According to one embodiment of present invention, it is optimal corresponding to being reduced to when the compressor operating frequency of k module machine During the lower limit of running frequency scope, if the compressor operating frequency of+1 module machine of the kth still not up to corresponding to most The lower limit of excellent running frequency scope, then the compressor of described+1 module machine of kth is controlled to keep current operation frequency operation.
According to one embodiment of present invention, when the unit is run with heating mode, if N number of module machine Compressor operating frequency reaches the higher limit of corresponding optimized operation frequency range and total output water temperature is less than default Target water temperature, then raising frequency control is carried out to the compressor of N number of module machine successively, until total output water temperature reaches default Target water temperature；Or when the unit is run in a chiller mode, if the compressor operating frequency of N number of module machine is equal Reach the higher limit of corresponding optimized operation frequency range and total output water temperature is more than default target water temperature, then it is right successively The compressor of N number of module machine carries out raising frequency control, until total output water temperature reaches default target water temperature.
According to one embodiment of present invention, in the running of the unit, when the unit is transported with heating mode During row, if total output water temperature of the unit is more than default target water temperature, successively to the module machine in running status Compressor carry out frequency reducing control, until total output water temperature reaches default target water temperature, wherein, currently carrying out frequency reducing Compressor running frequency be reduced to corresponding to the lower limit of optimized operation frequency range and total output water temperature of the unit During still greater than default target water temperature, frequency reducing control is carried out to the compressor of next module machine；When the unit is with the mould that freezes When formula is run, if total output water temperature of the unit is less than default target water temperature, successively to the mould in running status The compressor of block machine carries out frequency reducing control, until total output water temperature reaches default target water temperature, wherein, carried out currently The running frequency of the compressor of frequency reducing is reduced to the lower limit of corresponding optimized operation frequency range and total water outlet of the unit When water temperature is still less than default target water temperature, frequency reducing control is carried out to the compressor of next module machine.
According to one embodiment of present invention, when the compressor operating frequency of the module machine in running status is reduced to During the lower limit of corresponding optimized operation frequency range, wherein, if the unit is run with heating mode and total water outlet Water temperature then carries out shutdown control, until described total to the module machine in running status successively still greater than default target water temperature Output water temperature reaches default target water temperature；If the unit is run in a chiller mode and total output water temperature is still less than pre- If target water temperature, then shutdown control is carried out to the module machine in running status successively, until total output water temperature reaches Default target water temperature.
According to one embodiment of present invention, during shutdown control is carried out to the module machine in running status, When the unit is run with heating mode, wherein, if total output water temperature is less than default target water temperature, to not stopping The compressor of the module machine of machine carries out raising frequency control；If total output water temperature is still greater than default target water temperature and only surplus one The operation of individual module machine, then be reduced in the compressor operating frequency of the module machine corresponding to optimized operation frequency range lower limit Shi Jixu carries out frequency reducing control to the compressor of the module machine.
According to another embodiment of the invention, to the module machine in running status shut down the process of control In, when the unit is run in a chiller mode, wherein, it is right if total output water temperature is more than default target water temperature The compressor for the module machine do not shut down carries out raising frequency control；If total output water temperature is still less than default target water temperature and only Surplus module machine operation, then it is reduced in the compressor operating frequency of the module machine under corresponding optimized operation frequency range Continue to carry out frequency reducing control to the compressor of the module machine during limit value.
To reach above-mentioned purpose, second aspect of the present invention embodiment proposes a kind of computer-readable recording medium, had Instruction therein is stored in, when executed, the unit performs above-mentioned control method.
The computer-readable recording medium of the embodiment of the present invention, by performing above-mentioned control method, whole unit is entered Row systematization is adjusted, and makes the compressor operating of each module machine whole in optimized operation frequency range, improving to greatest extent The efficiency of unit, it effectively prevent part of module machine and run on high band, another part module machine runs on low-frequency range, causes machine The problem of overall efficiency of group is low.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of control device of air-conditioning/source pump, The unit includes N number of module machine in parallel, and each module machine includes compressor, wherein, N is integer more than or equal to 2, institute Stating control device includes：Acquisition module, for obtaining the optimized operation frequency of compressor corresponding when each module machine is run Scope；Judge module, in the running of the unit, if the unit is run with heating mode and the unit Total output water temperature be less than the default target water temperature or unit is run in a chiller mode and total water outlet water of the unit Temperature is more than default target water temperature, then judges the compressor operating frequency of each module machine in the module machine in running status and be The no higher limit for reaching corresponding optimized operation frequency range, wherein, the quantity of the module machine in running status is K, k ＜ N；Control module, the compressor operating frequency for each module machine in the module machine in running status reach + 1 module machine of kth is controlled to open during the higher limit of corresponding optimized operation frequency range, and in described+1 module machine of kth Compressor operating frequency is not up to the lower limit of corresponding optimized operation frequency range and total output water temperature reaches default During target water temperature, frequency reducing control is carried out to the compressor of k module machine and the compressor to+1 module machine of kth rises Frequency controls, to control the compressor operating frequency of k+1 module machine when total output water temperature reaches default target water temperature Corresponding to being in optimized operation frequency range.
The control device of air-conditioning/source pump according to embodiments of the present invention, each module machine is obtained by acquisition module The optimized operation frequency range of corresponding compressor during operation, in the running of unit, if unit is with heating mode Total output water temperature of operation and unit be less than default target water temperature or unit run in a chiller mode and the unit it is total Output water temperature is more than default target water temperature, then judges each module machine in the module machine in running status by judge module Compressor operating frequency whether reach corresponding to optimized operation frequency range higher limit, wherein, in running status Module machine in each module machine compressor operating frequency reach corresponding to optimized operation frequency range higher limit when, control Molding block control+1 module machine of kth is opened, and not up to corresponding optimal in the compressor operating frequency of+1 module machine of kth The lower limit of running frequency scope and when total output water temperature reaches default target water temperature, is carried out to the compressor of k module machine Frequency reducing controls and carries out raising frequency control to the compressor of+1 module machine of kth, to reach default target water in total output water temperature Wen Shi, the compressor operating frequency of k+1 module machine of control are in corresponding optimized operation frequency range.The device passes through Systematization regulation is carried out to whole unit, makes the compressor operating of each module machine to greatest extent in optimized operation frequency range It is interior, the efficiency of whole unit is improved, part of module machine is effectively prevent and runs on high band, another part module machine is run on Low-frequency range, the problem of causing unit entirety efficiency low.
According to one embodiment of present invention, the control module compressor of k module machine is carried out frequency reducing control and When carrying out raising frequency control to the compressor of described+1 module machine of kth, the compressor operating frequency of k-th of module machine is reduced, and The compressor operating frequency of+1 module machine of kth is raised, and is dropped in the compressor operating frequency of k-th of module machine The compressor operating frequency of+1 module machine of lower limit and the kth of as little as corresponding optimized operation frequency range is still not up to During the lower limit of corresponding optimized operation frequency range, control the compressor of k-th of module machine to stop frequency reducing, and reduce by the The compressor operating frequency of k-1 module machine and continue to raise the compressor operating frequency of+1 module machine of kth, until institute The compressor operating frequency for stating+1 module machine of kth is increased to the lower limit of corresponding optimized operation frequency range.
According to one embodiment of present invention, it is optimal corresponding to being reduced to when the compressor operating frequency of k module machine During the lower limit of running frequency scope, if the compressor operating frequency of+1 module machine of the kth still not up to corresponding to most The lower limit of excellent running frequency scope, the control module then control the compressor of described+1 module machine of kth to keep current fortune Line frequency is run.
According to one embodiment of present invention, the control module is additionally operable to, when the unit is run with heating mode, If the compressor operating frequency of N number of module machine reach corresponding to the higher limit of optimized operation frequency range and described total Output water temperature is less than default target water temperature, then carries out raising frequency control to the compressor of N number of module machine successively, until described Total output water temperature reaches default target water temperature；Or when the unit is run in a chiller mode, if N number of module machine Compressor operating frequency reach corresponding to optimized operation frequency range higher limit and total output water temperature be more than it is default Target water temperature, then raising frequency control is carried out to the compressor of N number of module machine successively, until total output water temperature reaches pre- If target water temperature.
According to one embodiment of present invention, control module is additionally operable to described in the running of the unit, works as institute When stating unit and being run with heating mode, if total output water temperature of the unit is more than default target water temperature, successively to place Frequency reducing control is carried out in the compressor of the module machine of running status, until total output water temperature reaches default target water temperature, Wherein, the lower limit of optimized operation frequency range and institute corresponding to being reduced in the running frequency for the compressor for currently carrying out frequency reducing When stating total output water temperature of unit still greater than default target water temperature, frequency reducing control is carried out to the compressor of next module machine； When the unit is run in a chiller mode, if total output water temperature of the unit is less than default target water temperature, successively Frequency reducing control is carried out to the compressor of the module machine in running status, until total output water temperature reaches default target water Temperature, wherein, it is reduced to the lower limit of corresponding optimized operation frequency range in the running frequency for the compressor for currently carrying out frequency reducing And total output water temperature of the unit still less than default target water temperature when, frequency reducing control is carried out to the compressor of next module machine System.
According to one embodiment of present invention, when the compressor operating frequency of the module machine in running status is reduced to During the lower limit of corresponding optimized operation frequency range, wherein, if the unit is run with heating mode and total water outlet Water temperature then carries out shutdown control to the module machine in running status successively still greater than default target water temperature, the control module System, until total output water temperature reaches default target water temperature；If the unit runs and described always gone out in a chiller mode Water water temperature then carries out shutdown control to the module machine in running status successively still less than default target water temperature, the control module System, until total output water temperature reaches default target water temperature.
According to one embodiment of present invention, during shutdown control is carried out to the module machine in running status, When the unit is run with heating mode, wherein, if total output water temperature is less than default target water temperature, the control Module is then to the compressor progress raising frequency control for the module machine do not shut down；If total output water temperature is still greater than default target Water temperature and only surplus module machine operation, corresponding to the control module is then reduced in the compressor operating frequency of the module machine Continue to carry out frequency reducing control to the compressor of the module machine during lower limit of optimized operation frequency range.
According to another embodiment of the invention, to the module machine in running status shut down the process of control In, when the unit is run in a chiller mode, wherein, it is described if total output water temperature is more than default target water temperature Control module is then to the compressor progress raising frequency control for the module machine do not shut down；If total output water temperature is still less than default Target water temperature and only surplus module machine operation, the control module are then reduced to pair in the compressor operating frequency of the module machine Continue to carry out frequency reducing control to the compressor of the module machine during lower limit for the optimized operation frequency range answered.
To reach above-mentioned purpose, fourth aspect present invention embodiment proposes a kind of air-conditioning/source pump, and it includes above-mentioned Unit control device.
Air-conditioning/source pump of the embodiment of the present invention, by above-mentioned control device, each module can be made to greatest extent The compressor operating of machine improves the efficiency of whole unit in optimized operation frequency range, effectively prevent part of module machine High band is run on, another part module machine runs on low-frequency range, the problem of causing unit entirety efficiency low.
Brief description of the drawings
Fig. 1 is the system schematic of air-conditioning/source pump according to an embodiment of the invention；
Fig. 2 is the flow chart of the control method of air-conditioning/source pump according to embodiments of the present invention；And
Fig. 3 is the block diagram of the control device of air-conditioning/source pump according to embodiments of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below in conjunction with the accompanying drawings come the control method of air-conditioning/source pump for describing to propose according to embodiments of the present invention, air-conditioning/ The control device of source pump and air-conditioning/source pump with the control device.
In an embodiment of the present invention, as shown in figure 1, the unit include N number of module machine #1, #2 in parallel ..., # K ..., #N, each module machine include compressor (not specifically illustrated in figure), N number of module machine #1, #2 ..., #k ..., #N it is in parallel Be connected to end heat exchanger 100, N number of module machine from tape controller (in figure not specifically illustrated), N number of module machine #1, #2 ..., # K ..., the respective controllers of #N are connected to master controller 200 by control signal wire respectively, are controlled by master controller 200 whole The cooperation operation of individual system, wherein, master controller 200 can be opened by module machine corresponding to each module machine from tape controller control Open or shut down, and raising frequency/frequency reducing control is carried out to the compressor of corresponding module machine.In total water outlet of N number of module machine Leaving water temperature sensors Tw is set, to detect total output water temperature of unit.
In addition, referring to Fig. 1, inflow temperature sensor, i.e., respectively Ti_ can also be set in the water inlet of each module machine 1st, Ti_2 ..., Ti_k ..., Ti_n, each module machine delivery port set leaving water temperature sensors, i.e., respectively To_1, To_2 ..., To_k ..., To_n, in order to be controlled accordingly module machine.
Fig. 2 is the flow chart of the control method of air-conditioning/source pump according to embodiments of the present invention.As shown in Fig. 2 this hair The control method of air-conditioning/source pump of bright embodiment may include following steps：
S1, obtain the optimized operation frequency range of compressor corresponding during each module machine operation.
Wherein, because the compressor optimized operation frequency of each module machine may be different, in order to ensure each compressor It can be run with optimal frequency, each module machine need to obtain the optimized operation of the compressor of each module machine respectively from tape controller Frequency range., can be by each module machine for ease of optimized operation frequency range corresponding to each module machine from tape controller acquisition The optimized operation frequency range of compressor be correspondingly stored in respective controller.
In an embodiment of the present invention, the compressor of N number of module machine can be corresponded into optimized operation frequency range to be designated as respectively： fopt1_1-fopt2_1、fopt1_2-fopt2_2、…、fopt1_k-fopt2_k、…、fopt1_N-fopt2_N.Wherein, institute The higher limit fopt2 of some compressor optimized operation frequency ranges can be in the range of 60Hz-100Hz, optimized operation frequency range Lower limit fopt1 can be in the range of 40Hz-60Hz.
S2, in the running of unit, if unit is run with heating mode and total output water temperature of unit is less than in advance If target water temperature or unit run in a chiller mode and total output water temperature of unit is more than default target water temperature, then sentence Whether the compressor operating frequency of each module machine reaches corresponding optimized operation frequency in the disconnected module machine in running status The higher limit of rate scope, wherein, the quantity of the module machine in running status is k, and k ＜ N, default target temperature is that user is pre- The temperature value first set.
S3, if in the module machine in running status the compressor operating frequency of each module machine reach corresponding to most The higher limit of excellent running frequency scope, then+1 module machine of kth is controlled to open, and in the compressor operating of+1 module machine of kth Frequency be not up to corresponding to optimized operation frequency range lower limit and total output water temperature when reaching default target water temperature, to k The compressor of individual module machine carries out frequency reducing control and the compressor to+1 module machine of kth carries out raising frequency control, with total water outlet The compressor operating frequency of k+1 module machine is controlled to be in corresponding optimized operation frequency when water temperature reaches default target water temperature In the range of rate.
According to one embodiment of present invention, frequency reducing control is carried out and to+1 module of kth to the compressor of k module machine The compressor of machine carries out raising frequency control, including：The compressor operating frequency of k-th of module machine is reduced, and raises+1 module of kth The compressor operating frequency of machine；Optimized operation frequency range corresponding to being reduced to when the compressor operating frequency of k-th of module machine + 1 module machine of lower limit and kth compressor operating frequency still not up to corresponding to optimized operation frequency range lower limit When, control the compressor of k-th of module machine to stop frequency reducing, and reduce the compressor operating frequency and continuation of -1 module machine of kth The compressor operating frequency of+1 module machine of kth is raised, until the compressor operating frequency of+1 module machine of kth is increased to correspondingly Optimized operation frequency range lower limit.
Specifically, in the running of unit, the leaving water temperature of total water outlet by being arranged on N number of module machine Sensor obtains total output water temperature of unit in real time, and it is judged.If unit is run with heating mode and unit Total output water temperature is less than default target water temperature or unit is run in a chiller mode and total output water temperature of unit is more than default Target water temperature, then further judge whether respective compressor reaches each by the controller of the module machine in running status The higher limit of self-corresponding optimized operation scope.Assuming that the module machine in running status be #1, #2 ..., #k, judging #1, # 2nd ..., #k compressor reaches the higher limit of each self-corresponding optimized operation scope, and total output water temperature is not up to default During target water temperature, stop to #1, #2 ..., #k compressor carries out raising frequency control, and controls+1 module machine of kth to open.
If the compressor operating frequency of+1 module machine of kth is not up to the lower limit fopt1_k+ of its optimized operation frequency 1, and total leaving water temperature has reached default target water temperature, then carries out frequency reducing control to the compressor of k-th of module machine, such as drops A low gear, raising frequency control then is carried out to the compressor of+1 module machine of kth, until the compressor drop of k-th of module machine Frequency stops carrying out frequency reducing control to the compressor of k-th of module machine to the lower limit fopt1_k of optimized operation frequency range.Such as Fruit now+1 module machine of kth compressor operating frequency still not up to corresponding to optimized operation frequency range lower limit Fopt1_k+1, then frequency reducing control is carried out to the compressor of -1 module machine of kth, and the compressor of+1 module machine of kth is carried out Raising frequency controls.
If the compressor operating frequency of -1 module machine of kth is had already decreased under corresponding optimized operation frequency range Limit value fopt1_k-1, and the still not up to corresponding optimized operation frequency range of the compressor operating frequency of+1 module machine of kth Lower limit fopt1_k+1, then frequency reducing control is carried out to the compressor of -2 module machines of kth, and to the compression of+1 module machine of kth Machine carries out raising frequency control, repeats, and carries out frequency reducing control to the compressor of the module machine in opening successively, until place It is in the compressor operating frequency of k+1 module machine of running status in each self-corresponding optimized operation frequency range.From And while ensureing that total output water temperature reaches default target water temperature, the module machine of running status is guaranteed to greatest extent Compressor operate in respective optimized operation frequency range, which thereby enhance the efficiency of complete machine.
According to one embodiment of present invention, it is optimal corresponding to being reduced to when the compressor operating frequency of k module machine During the lower limit of running frequency scope, if the still not up to corresponding optimal fortune of the compressor operating frequency of+1 module machine of kth The lower limit of line frequency scope, then the compressor of+1 module machine of kth is controlled to keep current operation frequency operation.
That is, when the compressor to the k module machine (#1 to #k) in running status carries out frequency reducing control, such as When the compressor operating frequency of k module machine of fruit is reduced to the lower limit of each self-corresponding optimized operation frequency range, and this When+1 module machine of kth compressor operating frequency still not up to corresponding to optimized operation frequency range lower limit fopt1_k+ 1, stop carrying out frequency reducing control to the compressor of k module machine, while control the compressor of+1 module machine of kth to keep current frequency Rate is run.So as to ensure that the compressor operating frequency of more module machine is in the range of optimal frequency as far as possible.
Further, according to one embodiment of present invention, when unit is run with heating mode, if N number of module machine Compressor operating frequency reach corresponding to optimized operation frequency range higher limit and total output water temperature be less than default mesh Water temperature is marked, then raising frequency control is carried out to the compressor of N number of module machine successively, until total output water temperature reaches default target water Temperature.Or when unit is run in a chiller mode, if the compressor operating frequency of N number of module machine reaches corresponding optimal fortune The higher limit of line frequency scope and total output water temperature is more than default target water temperature, then enter to the compressor of N number of module machine successively Row raising frequency controls, until total output water temperature reaches default target water temperature.
That is, when N number of module machine is in running status, if the compressor operating frequency of N number of module machine is equal Reach the higher limit of each self-corresponding optimized operation frequency range, and total output water temperature is still not up to default target water temperature (i.e., When unit is run with heating mode, total output water temperature is less than default target water temperature, when unit is run in a chiller mode, total water outlet Water temperature is more than default target water temperature), then raising frequency control is carried out to the compressor of N number of module machine successively, until total output water temperature Reach default target water temperature.For example, from #1 to #N (or #N to #1), compressor operating frequency one corresponding to rise successively Gear, if total output water temperature does not reach default target water temperature yet, a gear is raised successively again, until total water outlet water Temperature reaches default target water temperature.Thus, it is possible to a part of compressor operating is effectively avoided in high band, a ventilating compressor fortune Row is in low-frequency range.
It is described below in detail when unit is run with heating mode and total output water temperature is more than default target water temperature or is worked as When unit is run in a chiller mode and total output water temperature is less than default target water temperature, how to the compressor fortune of N number of module machine Line frequency is controlled.
According to one embodiment of the invention, in the running of unit, when unit is run with heating mode, if machine Total output water temperature of group is more than default target water temperature, then carries out frequency reducing to the compressor of the module machine in running status successively Control, until total output water temperature reaches default target water temperature, wherein, currently carrying out the running frequency drop of the compressor of frequency reducing The lower limit of as little as corresponding optimized operation frequency range and when total output water temperature of unit is still greater than default target water temperature is right The compressor of next module machine carries out frequency reducing control.When unit is run in a chiller mode, if total output water temperature of unit Less than default target water temperature, then frequency reducing control is carried out to the compressor of the module machine in running status successively, until always going out Water water temperature reaches default target water temperature, wherein, currently carry out frequency reducing compressor running frequency be reduced to corresponding to most The lower limit of excellent running frequency scope and when total output water temperature of unit is still less than default target water temperature, to next module machine Compressor carry out frequency reducing control.
That is, when unit is run with heating mode and total output water temperature is less than default target water temperature, added Control is carried, i.e., raising frequency control is carried out to compressor, or control module machine is opened；When total output water temperature is more than default target water Wen Shi, Unloading Control is carried out, i.e., frequency reducing control is carried out to compressor operating frequency, or control module office closes.When unit with When refrigeration mode is run and total output water temperature is more than default target water temperature, Loading Control is carried out, i.e., raising frequency is carried out to compressor Control, or control module machine are opened；When total output water temperature is less than default target water temperature, Unloading Control is carried out, i.e., to pressure Contracting machine running frequency carries out frequency reducing control, or control module office closes.
Specifically, it is assumed that N number of module machine is in running status, when unit is with heating mode operation and always output water temperature is big When default target water temperature, or when unit is run in a chiller mode and total output water temperature is less than default target water temperature, So since #1, frequency reducing control is carried out to #1 compressor, if #1 compressor is downconverted to corresponding optimized operation frequency The lower limit fopt1_1 of scope, and total output water temperature when unit is run with heating mode is still greater than default target water temperature, or Total output water temperature when person's unit is run in a chiller mode then stops carrying out #1 compressor still less than default target water temperature Frequency reducing controls, and starts simultaneously at and carries out frequency reducing control to #2 compressor.If #2 compressor is downconverted to corresponding optimized operation The lower limit fopt1_2 of frequency range, and total output water temperature when unit is run with heating mode is still greater than default target water Temperature, or total output water temperature when unit is run in a chiller mode then stop the compression to #2 still less than default target water temperature Machine carries out frequency reducing control, starts simultaneously at and carries out frequency reducing control to #3 compressor.By that analogy, successively to the pressure of N number of module machine Contracting machine carries out frequency reducing control, until total output water temperature reaches default target water temperature.
Further, according to one embodiment of present invention, when the compressor operating frequency of the module machine in running status When rate is reduced to the lower limit of corresponding optimized operation frequency range, wherein, if unit is run with heating mode and always gone out Water water temperature then carries out shutdown control, until always going out to the module machine in running status successively still greater than default target water temperature Water water temperature reaches default target water temperature.If unit is run in a chiller mode and total output water temperature is still less than default target water Temperature, then shutdown control is carried out to the module machine in running status successively, until total output water temperature reaches default target water temperature.
That is, ought it be reduced in the compressor operating frequency of N number of module machine of running status respective optimal The lower limit of frequency ranges of operation, and total output water temperature when unit is run with heating mode is still greater than default target water temperature, Or total output water temperature of unit when running in a chiller mode still less than default target water temperature when, control #1 is shut down, if #1 After shutdown, total output water temperature when unit is run with heating mode is still greater than default target water temperature, or unit is with the mould that freezes Total output water temperature when formula is run then controls #2 to shut down still less than default target water temperature.By that analogy, control successively still in The module machine of running status is shut down, until total output water temperature reaches default target water temperature.
Further, in one embodiment of the invention, shutdown control is being carried out to the module machine in running status During, when unit is run with heating mode, wherein, if total output water temperature is less than default target water temperature, to not The compressor of the module machine of shutdown carries out raising frequency control；If total output water temperature is still greater than default target water temperature and only surplus one Module machine is run, then when the compressor operating frequency of the module machine is reduced to the lower limit of corresponding optimized operation frequency range Continue to carry out frequency reducing control to the compressor of the module machine.
In another embodiment of the present invention, to the module machine in running status shut down the process of control In, when unit is run in a chiller mode, wherein, if total output water temperature is more than default target water temperature, to what is do not shut down The compressor of module machine carries out raising frequency control.If total output water temperature is still less than default target water temperature and only remains a module machine Operation, then be reduced in the compressor operating frequency of the module machine corresponding to optimized operation frequency range lower limit when continue pair The compressor of the module machine carries out frequency reducing control.
Specifically, during shutdown control is carried out to module machine, such as after control #k is shut down, if unit is to heat Total output water temperature during mode operation is less than default target water temperature, or total output water temperature when unit is run in a chiller mode More than default target water temperature, then the compressor of the module machine still in running status is entered according to above-mentioned raising frequency control method Row raising frequency controls, so that total output water temperature reaches default target water temperature；Total water outlet when if unit is run with heating mode Water temperature is still greater than default target water temperature, or total output water temperature when unit is run in a chiller mode is less than default target water Temperature, then continue to control #k+1 to shut down, if total output water temperature when unit is run with heating mode is still greater than default target water Warm and only surplus module machine operation, or total output water temperature when unit is run in a chiller mode is still less than default target water Warm and only surplus module machine operation, even if then the compressor operating frequency of the module machine has been optimal frequency ranges of operation Lower limit, continue to carry out frequency reducing control to the compressor of the module machine, until total output water temperature reaches default target water Temperature.
It should be noted that during the compressor operating frequency of module machine is adjusted, various limit frequencies, protection It is effective.
In summary, the control method of air-conditioning/source pump according to embodiments of the present invention, each module machine fortune is first obtained The optimized operation frequency range of corresponding compressor during row, in the running of unit, if unit is transported with heating mode Total output water temperature of row and unit is less than default target water temperature or unit is run in a chiller mode and total water outlet water of unit Temperature is more than default target water temperature, then judges the compressor operating frequency of each module machine in the module machine in running status and be The no higher limit for reaching corresponding optimized operation frequency range, wherein, if each mould in the module machine in running status The compressor operating frequency of block machine reaches the higher limit of corresponding optimized operation frequency range, then controls+1 module machine of kth Open, and the lower limit of optimized operation frequency range corresponding to being not up in the compressor operating frequency of+1 module machine of kth and When total output water temperature reaches default target water temperature, frequency reducing control is carried out and to+1 module of kth to the compressor of k module machine The compressor of machine carries out raising frequency control, to control the pressure of k+1 module machine when total output water temperature reaches default target water temperature Contracting machine running frequency is in corresponding optimized operation frequency range.This method to whole unit by carrying out systematization tune Section, makes the compressor operating of each module machine improve the efficiency of whole unit in optimized operation frequency range to greatest extent, It effectively prevent part of module machine and run on high band, another part module machine runs on low-frequency range, causes unit entirety efficiency The problem of low.
Fig. 3 is the block diagram of the control device of air-conditioning/source pump according to embodiments of the present invention.The present invention's In embodiment, unit may include N number of module machine in parallel, and each module machine may each comprise compressor, wherein, N is more than or equal to 2 Integer.
As shown in figure 3, the control device of air-conditioning/source pump of the embodiment of the present invention may include：Acquisition module 10, judge Module 20 and control module 30.
Wherein, acquisition module 10 is used to obtain the optimized operation frequency model of compressor corresponding during each module machine operation Enclose.Judge module 20 is used in the running of unit, if unit is run with heating mode and total output water temperature of unit Run in a chiller mode less than default target water temperature or unit and total output water temperature of unit is more than default target water Temperature, then judge whether the compressor operating frequency of each module machine in the module machine in running status reaches corresponding optimal The higher limit of running frequency scope, wherein, the quantity of the module machine in running status is k, k ＜ N.Control module 30 is used for The compressor operating frequency of each module machine reaches corresponding optimized operation frequency range in module machine in running status Higher limit when control+1 module machine of kth to open, and+1 module machine of kth compressor operating frequency not up to corresponding to The lower limit of optimized operation frequency range and when total output water temperature reaches default target water temperature, to the compressor of k module machine Carry out frequency reducing control and the compressor to+1 module machine of kth carries out raising frequency control, to reach default mesh in total output water temperature The compressor operating frequency of k+1 module machine is controlled to be in corresponding optimized operation frequency range when marking water temperature.
According to one embodiment of present invention, control module 30 carries out frequency reducing control and right to the compressor of k module machine When the compressor of+1 module machine of kth carries out raising frequency control, the compressor operating frequency of k-th of module machine is reduced, and raises kth The compressor operating frequency of+1 module machine, and k-th of module machine compressor operating frequency be reduced to corresponding to it is optimal The still not up to corresponding optimized operation frequency of the compressor operating frequency of+1 module machine of lower limit and kth of running frequency scope During the lower limit of scope, control the compressor of k-th of module machine to stop frequency reducing, and reduce the compressor fortune of -1 module machine of kth Line frequency and the compressor operating frequency for continuing rise+1 module machine of kth, until the compressor operating frequency of+1 module machine of kth Rate is increased to the lower limit of corresponding optimized operation frequency range.
According to one embodiment of present invention, it is optimal corresponding to being reduced to when the compressor operating frequency of k module machine During the lower limit of running frequency scope, if the still not up to corresponding optimal fortune of the compressor operating frequency of+1 module machine of kth The lower limit of line frequency scope, control module 30 then control the compressor of+1 module machine of kth to keep current operation frequency operation.
According to one embodiment of present invention, control module 30 is additionally operable to, when unit is run with heating mode, if N The compressor operating frequency of individual module machine reaches the higher limit of corresponding optimized operation frequency range and total output water temperature is less than Default target water temperature, then raising frequency control is carried out to the compressor of N number of module machine successively, until total output water temperature reaches default Target water temperature.Or when unit is run in a chiller mode, if the compressor operating frequency of N number of module machine reaches corresponding The higher limit of optimized operation frequency range and total output water temperature is more than default target water temperature, then successively to the pressure of N number of module machine Contracting machine carries out raising frequency control, until total output water temperature reaches default target water temperature.
According to one embodiment of present invention, in the running of unit, control module 30 is additionally operable to, when unit to make When heat pattern is run, if total output water temperature of unit is more than default target water temperature, successively to the mould in running status The compressor of block machine carries out frequency reducing control, until total output water temperature reaches default target water temperature, wherein, currently carrying out frequency reducing Compressor running frequency be reduced to corresponding to optimized operation frequency range lower limit and unit total output water temperature it is still big When default target water temperature, frequency reducing control is carried out to the compressor of next module machine.When unit is run in a chiller mode, If total output water temperature of unit is less than default target water temperature, the compressor of the module machine in running status is entered successively Row frequency reducing controls, until total output water temperature reaches default target water temperature, wherein, in the operation for the compressor for currently carrying out frequency reducing Frequency is reduced to the lower limit of corresponding optimized operation frequency range and total output water temperature of unit is still less than default target water Wen Shi, frequency reducing control is carried out to the compressor of next module machine.
According to one embodiment of present invention, when the compressor operating frequency of the module machine in running status is reduced to During the lower limit of corresponding optimized operation frequency range, wherein, if unit is run with heating mode and total output water temperature is still big In default target water temperature, control module 30 then carries out shutdown control to the module machine in running status successively, until always going out Water water temperature reaches default target water temperature.If unit is run in a chiller mode and total output water temperature is still less than default target water Temperature, control module 30 then carry out shutdown control to the module machine in running status successively, until total output water temperature reaches default Target water temperature.
According to one embodiment of present invention, during shutdown control is carried out to the module machine in running status, When unit is run with heating mode, wherein, if total output water temperature is less than default target water temperature, control module 30 is not then to The compressor of the module machine of shutdown carries out raising frequency control.If total output water temperature is still greater than default target water temperature and only surplus one Module machine is run, and control module 30 is then reduced to corresponding optimized operation frequency range in the compressor operating frequency of the module machine Lower limit when continue to carry out frequency reducing control to the compressor of the module machine.
According to another embodiment of the invention, to the module machine in running status shut down the process of control In, when unit is run in a chiller mode, wherein, if total output water temperature is more than default target water temperature, control module 30 is then The compressor of module machine to not shutting down carries out raising frequency control.If total output water temperature is still less than default target water temperature and only surplus One module machine operation, control module 30 are then reduced to corresponding optimized operation frequency in the compressor operating frequency of the module machine Continue to carry out frequency reducing control to the compressor of the module machine during lower limit of scope.
It should be noted that the details not disclosed in the control device of air-conditioning/source pump of the embodiment of the present invention, please join The details disclosed in control method according to air-conditioning/source pump of the embodiment of the present invention, is specifically repeated no more here.
The control device of air-conditioning/source pump according to embodiments of the present invention, each module machine is obtained by acquisition module The optimized operation frequency range of corresponding compressor during operation, in the running of unit, if unit is with heating mode Total output water temperature of operation and unit be less than default target water temperature or unit run in a chiller mode and the unit it is total When output water temperature is more than default target water temperature, then each module in the module machine in running status is judged by judge module Whether the compressor operating frequency of machine reaches the higher limit of corresponding optimized operation frequency range, wherein, in operation shape When the compressor operating frequency of each module machine reaches the higher limit of corresponding optimized operation frequency range in the module machine of state, Control module+1 module machine of control kth is opened, and+1 module machine of kth compressor operating frequency not up to corresponding to most The lower limit of excellent running frequency scope and when total output water temperature reaches default target water temperature, enters to the compressor of k module machine Row frequency reducing controls and carries out raising frequency control to the compressor of+1 module machine of kth, to reach default target in total output water temperature During water temperature, the compressor operating frequency of k+1 module machine of control is in corresponding optimized operation frequency range.The device leads to Cross and systematization regulation is carried out to whole unit, make the compressor operating of each module machine to greatest extent in optimized operation frequency range It is interior, the efficiency of whole unit is improved, part of module machine is effectively prevent and runs on high band, another part module machine is run on Low-frequency range, the problem of causing unit entirety efficiency low.
In addition, embodiments of the invention also proposed a kind of computer-readable recording medium, have and be stored in finger therein Order, when executed, unit perform above-mentioned control method.
The computer-readable recording medium of the embodiment of the present invention, by performing above-mentioned control method, whole unit is entered Row systematization is adjusted, and makes the compressor operating of each module machine whole in optimized operation frequency range, improving to greatest extent The efficiency of unit, it effectively prevent part of module machine and run on high band, another part module machine runs on low-frequency range, causes machine The problem of overall efficiency of group is low.
In addition, embodiments of the invention also proposed a kind of air-conditioning/source pump, it includes above-mentioned air-conditioning/heat pump machine The control device of group.
Air-conditioning/source pump of the embodiment of the present invention, by above-mentioned control device, each module can be made to greatest extent The compressor operating of machine improves the efficiency of whole unit in optimized operation frequency range, effectively prevent part of module machine High band is run on, another part module machine runs on low-frequency range, the problem of causing unit entirety efficiency low.
Any process or method described otherwise above description in flow chart or herein is construed as, and represents to include Module, fragment or the portion of the code of the executable instruction of one or more the step of being used to realize specific logical function or process Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discuss suitable Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention Embodiment person of ordinary skill in the field understood.
Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass Defeated program is for instruction execution system, device or equipment or the dress used with reference to these instruction execution systems, device or equipment Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wiring Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium, which can even is that, to print the paper of described program thereon or other are suitable Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned In embodiment, software that multiple steps or method can be performed in memory and by suitable instruction execution system with storage Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal Discrete logic, have suitable combinational logic gate circuit application specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method carries Suddenly it is that by program the hardware of correlation can be instructed to complete, described program can be stored in a kind of computer-readable storage medium In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, can also That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould Block can both be realized in the form of hardware, can also be realized in the form of software function module.The integrated module is such as Fruit is realized in the form of software function module and as independent production marketing or in use, can also be stored in a computer In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In addition, in the description of the invention, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " clockwise ", " inverse time The orientation or position relationship of the instruction such as pin ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or position relationship, Be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements, limited unless otherwise clear and definite.For one of ordinary skill in the art For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (18)

1. a kind of control method of air-conditioning/source pump, it is characterised in that the unit includes N number of module machine in parallel, each Module machine includes compressor, wherein, N is the integer more than or equal to 2, and the control method comprises the following steps：
Obtain the optimized operation frequency range of compressor corresponding during each module machine operation；
In the running of the unit, if the unit is run with heating mode and total output water temperature of the unit is small Run in a chiller mode in default target water temperature or the unit and total output water temperature of the unit is more than default mesh Water temperature is marked, then judges whether the compressor operating frequency of each module machine in the module machine in running status reaches corresponding The higher limit of optimized operation frequency range, wherein, the quantity of the module machine in running status is k, k ＜ N；
If the compressor operating frequency of each module machine reaches corresponding optimized operation in the module machine in running status The higher limit of frequency range, then+1 module machine of kth is controlled to open, and in the compressor operating frequency of described+1 module machine of kth Rate be not up to corresponding to optimized operation frequency range lower limit and total output water temperature when reaching default target water temperature, it is right The compressor of k module machine carries out frequency reducing control and the compressor to described+1 module machine of kth carries out raising frequency control, with institute State controlled when total output water temperature reaches default target water temperature k+1 module machine compressor operating frequency be in it is corresponding most In the range of excellent running frequency.
2. the control method of unit as claimed in claim 1, it is characterised in that frequency reducing is carried out to the compressor of k module machine Control and the compressor progress raising frequency control to described+1 module machine of kth, including：
The compressor operating frequency of k-th of module machine is reduced, and raises the compressor operating frequency of+1 module machine of kth；
The lower limit of optimized operation frequency range and institute corresponding to being reduced to when the compressor operating frequency of k-th of module machine When stating the lower limit of the still not up to corresponding optimized operation frequency range of compressor operating frequency of+1 module machine of kth, control The compressor of k-th of module machine stops frequency reducing, and reduces the compressor operating frequency of -1 module machine of kth and continue to raise The compressor operating frequency of+1 module machine of kth, until the compressor operating frequency of+1 module machine of kth is increased to The lower limit of corresponding optimized operation frequency range.
3. the control method of unit as claimed in claim 2, it is characterised in that when the compressor operating frequency of k module machine Corresponding to being reduced to during the lower limit of optimized operation frequency range, if the compressor operating frequency of+1 module machine of the kth The lower limit of the still not up to corresponding optimized operation frequency range of rate, then control the compressor of described+1 module machine of kth to keep Current operation frequency is run.
4. the control method of the unit as any one of claim 1-3, it is characterised in that
When the unit is run with heating mode, if the compressor operating frequency of N number of module machine reaches corresponding The higher limit of optimized operation frequency range and total output water temperature is less than default target water temperature, then successively to N number of mould The compressor of block machine carries out raising frequency control, until total output water temperature reaches default target water temperature；Or
When the unit is run in a chiller mode, if the compressor operating frequency of N number of module machine reaches corresponding The higher limit of optimized operation frequency range and total output water temperature is more than default target water temperature, then successively to N number of mould The compressor of block machine carries out raising frequency control, until total output water temperature reaches default target water temperature.
5. the control method of the unit as any one of claim 1-3, it is characterised in that in the operation of the unit Cheng Zhong,
When the unit is run with heating mode, if total output water temperature of the unit is more than default target water temperature, Frequency reducing control is carried out to the compressor of the module machine in running status successively, until total output water temperature reaches default mesh Water temperature is marked, wherein, it is reduced to currently carrying out the running frequency of compressor of frequency reducing under corresponding optimized operation frequency range When total output water temperature of limit value and the unit is still greater than default target water temperature, the compressor of next module machine is dropped Frequency controls；
When the unit is run in a chiller mode, if total output water temperature of the unit is less than default target water temperature, Frequency reducing control is carried out to the compressor of the module machine in running status successively, until total output water temperature reaches default mesh Water temperature is marked, wherein, it is reduced to currently carrying out the running frequency of compressor of frequency reducing under corresponding optimized operation frequency range When total output water temperature of limit value and the unit is still less than default target water temperature, the compressor of next module machine is dropped Frequency controls.
6. the control method of unit as claimed in claim 5, it is characterised in that when the compression of the module machine in running status When machine running frequency is reduced to the lower limit of corresponding optimized operation frequency range, wherein,
If the unit is run with heating mode and total output water temperature is still greater than default target water temperature, successively to place Shutdown control is carried out in the module machine of running status, until total output water temperature reaches default target water temperature；
If the unit is run in a chiller mode and total output water temperature is still less than default target water temperature, successively to place Shutdown control is carried out in the module machine of running status, until total output water temperature reaches default target water temperature.
7. the control method of unit as claimed in claim 6, it is characterised in that carried out to the module machine in running status During shutting down control, when the unit is run with heating mode, wherein,
If total output water temperature is less than default target water temperature, the compressor of the module machine to not shutting down carries out raising frequency control System；
If total output water temperature is still greater than default target water temperature and an only surplus module machine is run, in the module machine Compressor operating frequency continues to enter the compressor of the module machine when being reduced to the lower limit of corresponding optimized operation frequency range Row frequency reducing controls.
8. the control method of unit as claimed in claim 6, it is characterised in that carried out to the module machine in running status During shutting down control, when the unit is run in a chiller mode, wherein,
If total output water temperature is more than default target water temperature, the compressor of the module machine to not shutting down carries out raising frequency control System；
If total output water temperature is still less than default target water temperature and an only surplus module machine is run, in the module machine Compressor operating frequency continues to enter the compressor of the module machine when being reduced to the lower limit of corresponding optimized operation frequency range Row frequency reducing controls.
9. a kind of computer-readable recording medium, it is characterised in that have and be stored in instruction therein, when the instruction is performed When, the unit performs the control method as any one of claim 1-8.
10. a kind of control device of air-conditioning/source pump, it is characterised in that the unit includes N number of module machine in parallel, often Individual module machine includes compressor, wherein, N is the integer more than or equal to 2, and the control device includes：
Acquisition module, for obtaining the optimized operation frequency range of compressor corresponding when each module machine is run；
Judge module, in the running of the unit, if the unit is run with heating mode and the unit Total output water temperature be less than the default target water temperature or unit is run in a chiller mode and total water outlet water of the unit Temperature is more than default target water temperature, then judges the compressor operating frequency of each module machine in the module machine in running status and be The no higher limit for reaching corresponding optimized operation frequency range, wherein, the quantity of the module machine in running status is K, k ＜ N；
Control module, the compressor operating frequency for each module machine in the module machine in running status reach corresponding Optimized operation frequency range higher limit when control+1 module machine of kth to open, and in the compression of+1 module machine of kth Machine running frequency is not up to the lower limit of corresponding optimized operation frequency range and total output water temperature reaches default target During water temperature, frequency reducing control is carried out to the compressor of k module machine and the compressor to described+1 module machine of kth carries out raising frequency control System, to control the compressor operating frequency of k+1 module machine to locate when total output water temperature reaches default target water temperature In in corresponding optimized operation frequency range.
11. the control device of unit as claimed in claim 10, it is characterised in that the control module is to k module machine When compressor carries out frequency reducing control and carries out raising frequency control to the compressor of described+1 module machine of kth, k-th of module machine is reduced Compressor operating frequency, and raise the compressor operating frequency of+1 module machine of kth, and in k-th of module The compressor operating frequency of machine is reduced to the pressure of+1 module machine of lower limit and the kth of corresponding optimized operation frequency range During the lower limit of the still not up to corresponding optimized operation frequency range of contracting machine running frequency, the pressure of k-th of module machine is controlled Contracting machine stops frequency reducing, and reduces the compressor operating frequency of -1 module machine of kth and continue to raise described+1 module machine of kth Compressor operating frequency, until the compressor operating frequency of+1 module machine of kth is increased to corresponding optimized operation frequency The lower limit of scope.
12. the control device of unit as claimed in claim 11, it is characterised in that when the compressor operating frequency of k module machine When rate is reduced to the lower limit of corresponding optimized operation frequency range, if the compressor operating of+1 module machine of the kth The lower limit of the still not up to corresponding optimized operation frequency range of frequency, the control module then control described+1 module of kth The compressor of machine keeps current operation frequency operation.
13. the control device of the unit as any one of claim 10-12, it is characterised in that the control module is also For,
When the unit is run with heating mode, if the compressor operating frequency of N number of module machine reaches corresponding The higher limit of optimized operation frequency range and total output water temperature is less than default target water temperature, then successively to N number of mould The compressor of block machine carries out raising frequency control, until total output water temperature reaches default target water temperature；Or
When the unit is run in a chiller mode, if the compressor operating frequency of N number of module machine reaches corresponding The higher limit of optimized operation frequency range and total output water temperature is more than default target water temperature, then successively to N number of mould The compressor of block machine carries out raising frequency control, until total output water temperature reaches default target water temperature.
14. the control device of the unit as any one of claim 10-12, it is characterised in that in the fortune of the unit During row, the control module is additionally operable to,
When the unit is run with heating mode, if total output water temperature of the unit is more than default target water temperature, Frequency reducing control is carried out to the compressor of the module machine in running status successively, until total output water temperature reaches default mesh Water temperature is marked, wherein, it is reduced to currently carrying out the running frequency of compressor of frequency reducing under corresponding optimized operation frequency range When total output water temperature of limit value and the unit is still greater than default target water temperature, the compressor of next module machine is dropped Frequency controls；
When the unit is run in a chiller mode, if total output water temperature of the unit is less than default target water temperature, Frequency reducing control is carried out to the compressor of the module machine in running status successively, until total output water temperature reaches default mesh Water temperature is marked, wherein, it is reduced to currently carrying out the running frequency of compressor of frequency reducing under corresponding optimized operation frequency range When total output water temperature of limit value and the unit is still less than default target water temperature, the compressor of next module machine is dropped Frequency controls.
15. the control device of unit as claimed in claim 14, it is characterised in that when the pressure of the module machine in running status When contracting machine running frequency is reduced to the lower limit of corresponding optimized operation frequency range, wherein,
If the unit is run with heating mode and total output water temperature is still greater than default target water temperature, the control mould Block then carries out shutdown control to the module machine in running status successively, until total output water temperature reaches default target water Temperature；
If the unit is run in a chiller mode and total output water temperature is still less than default target water temperature, the control mould Block then carries out shutdown control to the module machine in running status successively, until total output water temperature reaches default target water Temperature.
16. the control device of unit as claimed in claim 15, it is characterised in that enter to the module machine in running status During row shuts down control, when the unit is run with heating mode, wherein,
If total output water temperature is less than default target water temperature, the control module is then to the compression for the module machine do not shut down Machine carries out raising frequency control；
If total output water temperature is still greater than default target water temperature and an only surplus module machine is run, the control module is then Continue corresponding to being reduced in the compressor operating frequency of the module machine during lower limit of optimized operation frequency range to the module The compressor of machine carries out frequency reducing control.
17. the control device of unit as claimed in claim 15, it is characterised in that enter to the module machine in running status During row shuts down control, when the unit is run in a chiller mode, wherein,
If total output water temperature is more than default target water temperature, the control module is then to the compression for the module machine do not shut down Machine carries out raising frequency control；
If total output water temperature is still less than default target water temperature and an only surplus module machine is run, the control module is then Continue corresponding to being reduced in the compressor operating frequency of the module machine during lower limit of optimized operation frequency range to the module The compressor of machine carries out frequency reducing control.
18. a kind of air-conditioning/source pump, it is characterised in that include the control of the unit as any one of claim 10-17 Device processed.
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CN109059207A (en) * 2018-06-14 2018-12-21 珠海格力电器股份有限公司 The carrier frequency control method and device of air-conditioner set, transducer air conditioning
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CN109269037A (en) * 2018-10-09 2019-01-25 珠海格力电器股份有限公司 The control method and device of air-conditioning system
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CN109798581A (en) * 2019-01-25 2019-05-24 青岛海信日立空调系统有限公司 A kind of control method and air source heat pump system of multiple net for air-source heat pump units
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CN108800467A (en) * 2018-06-19 2018-11-13 广东美的制冷设备有限公司 Control method, device and the air-conditioning with it of air-conditioning
CN109140676A (en) * 2018-08-22 2019-01-04 奥克斯空调股份有限公司 A kind of air conditioner and its control method
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CN109579348A (en) * 2018-12-04 2019-04-05 宁波工程学院 The multi-functional multi-joint dry type capillary radiation heat pump unit of one kind and its control method
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CN109798581A (en) * 2019-01-25 2019-05-24 青岛海信日立空调系统有限公司 A kind of control method and air source heat pump system of multiple net for air-source heat pump units
CN110160126A (en) * 2019-04-18 2019-08-23 广东智科电子股份有限公司 Frequency conversion heating multi-connected machine control method, device, equipment and storage medium
CN110160126B (en) * 2019-04-18 2021-02-09 广东智科电子股份有限公司 Variable-frequency heating multi-split control method, device, equipment and storage medium
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