CN116379588B - Cold water main machine load distribution optimizing and adjusting method and system thereof - Google Patents

Cold water main machine load distribution optimizing and adjusting method and system thereof Download PDF

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Publication number
CN116379588B
CN116379588B CN202310373952.7A CN202310373952A CN116379588B CN 116379588 B CN116379588 B CN 116379588B CN 202310373952 A CN202310373952 A CN 202310373952A CN 116379588 B CN116379588 B CN 116379588B
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load
cold water
water
host
adjustment
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CN116379588A (en
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阳红军
夏金瑞
袁玉玲
姚岳涛
黄维
林光
夏中明
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Guangzhou Sjest Energy Saving Technology Co ltd
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Guangzhou Sjest Energy Saving Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
    • 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
    • F24F11/88—Electrical aspects, e.g. circuits
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)
  • Feedback Control In General (AREA)

Abstract

The application relates to a method for optimizing and regulating load distribution of a cold water host machine and a system thereof. The application has the effects of reducing the passive influence of the passive change of the load of the cold water main machine on the energy efficiency of the cold water main machine operated in a combined way and improving the operation energy efficiency of a single cold water main machine.

Description

Cold water main machine load distribution optimizing and adjusting method and system thereof
Technical Field
The application relates to the technical field of air conditioner load optimization, in particular to a load distribution optimizing and adjusting method and a system of a cold water main machine.
Background
Central air conditioners are widely used in public buildings and are large households of building energy consumption. In a central air conditioning system, the power consumption of a cold station, particularly a water chiller, occupies a very large specific gravity, so that the operation energy saving of the water chiller is at the heart in the control of machine room group control. The operation energy-saving control of the water chiller is mainly realized on the regulation of the collocation of the main machine, in particular to the different collocation of a plurality of cold water main machines which are operated in a combined way and have different distribution of the end load, and the performance parameters of the main machine are greatly influenced.
The control system regulating logic of the cold water host equipment is that the load of the compressor is regulated according to the set chilled water outlet temperature and the load demand of the tail end.
The general group control system is used for adjusting the water chilling host, mainly for controlling the number of remote addition and subtraction, and then the water chilling host is used for carrying out self addition and subtraction load adjustment according to the water supply temperature setting and the end load requirement.
When a plurality of cold water hosts run in the system, the end load can be distributed to each host according to the water flow proportion, namely the load quantity to be processed of each host is passively output according to the chilled water flow and the chilled water outlet temperature set value.
Since the energy efficiency (i.e., COP value) of the cold water host is very dependent on the load factor, the energy efficiency value is also passive in this case and does not necessarily fall within the efficient zone of the host.
In the related art described above, the inventors consider that there is a drawback in that the cold water main machine load and the like are liable to have a passive influence on the cold water main machine energy of the combined operation.
Disclosure of Invention
In order to reduce the passive influence of the passive change of the load of the cold water main machine on the energy efficiency of the cold water main machine in combined operation and improve the operation energy efficiency of a single cold water main machine, the application provides a load distribution optimizing and adjusting method of the cold water main machine and a system thereof.
The first object of the present application is achieved by the following technical solutions:
the utility model provides a cold water main machine load distribution optimizing and adjusting method, which comprises the following steps:
acquiring the operation load parameters of an air conditioner refrigerating system in real time;
judging the number of cold water host machines according to the operation load parameters, and carrying out cold water host machine collocation processing according to the number of cold water host machines to obtain a cold water host machine collocation scheme;
respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme;
And carrying out current ratio adjustment processing on each cold water host according to the load control data to obtain a load adjustment optimization strategy which accords with the optimal control load rate of each cold water host.
By adopting the technical scheme, because the load rates among different cold water hosts are different, when a plurality of combined cold water hosts run simultaneously, the load can be automatically distributed, so that the load rate of each cold water host tends to be the same, and the optimal energy efficiency working interval of each cold water host is difficult to ensure, therefore, the current working state of each cold water host is judged by acquiring the running load parameters of the cold water host system in real time, the number of the cold water host working tables in the current working state is acquired, thereby being beneficial to accurately combining and collocating each cold water host, performing analog control processing on the cold water host in the working state, obtaining the load control data matched with the matching scheme of the cold water host, being beneficial to adjusting the load rate of each cold water host to the working interval with optimal energy efficiency, improving the single running efficiency of each cold water host, and performing current ratio adjustment processing on each cold water host through the load control data, and enabling the cold water host to work under the optimal control load rate, thereby obtaining the overall load adjustment optimization strategy of each cold water host.
The present application may be further configured in a preferred example to: the method for performing the simulation control processing on the cold water hosts in the cold water host collocation scheme to obtain the load control data conforming to the cold water host collocation scheme specifically comprises the following steps:
inputting the operation load parameters, the cold water host collocation scheme and the outdoor meteorological parameters into a host performance model obtained through training in advance to obtain an optimal load control rate of each cold water host;
performing limit value adjustment processing on the current ratio of each cold water main machine according to the optimal load control rate to obtain a current ratio limit value adjustment parameter corresponding to the optimal load control rate;
and carrying out the frequency adjustment processing of the chilled water pump on the chilled water main machine according to the current ratio limit value adjustment parameter to obtain the frequency parameter of the chilled water pump for matching with the load adjustment corresponding to the matching scheme of the chilled water main machine to keep the water supply temperature set value of the main machine.
By adopting the technical scheme, the optimal load control rate which accords with the optimal running performance of each cold water host is obtained by inputting the running load parameter, the cold water host collocation scheme and the outdoor weather parameter into the host performance model which is obtained by training in advance to calculate the load control rate, the load control accuracy of each cold water host is improved, and the active regulation of the load of the cold water host is realized by the active intervention of the current ratio of the single cold water host, so that the current ratio limit value regulation parameter corresponding to the optimal load control rate is obtained, the energy regulation activity of the cold water host is improved, the frequency of a freezing pump is passively regulated according to the current ratio limit value regulation parameter, the freezing water quantity of the single cold water host is matched with the current ratio limit value regulation parameter, the preset freezing water supply temperature of each cold water host is ensured to keep stable, and the comprehensive running energy efficiency of the cold water host scheme is improved.
The present application may be further configured in a preferred example to: the method comprises the steps of carrying out chilled water pump frequency adjustment processing on a cold water host according to the current ratio limit value adjustment parameter to obtain chilled water pump frequency parameter which is used for matching load adjustment corresponding to the cold water host collocation scheme to keep a host water supply temperature set value, and further comprises:
respectively obtaining optimal collocation load control parameters of each cold water host in each cold water host collocation scheme under the current working condition;
according to the optimal collocation load control parameter, invoking a preset current ratio limit mode to independently adjust current ratio data of a collocation single host machine, so as to obtain a single current ratio adjustment strategy of each cold water host machine collocation scheme;
and according to the single current ratio regulation strategy, carrying out the frequency regulation treatment of the chilled water pump on each chilled water host collocation scheme to obtain collocation chilled water pump frequency parameters which are matched with collocation load regulation of each chilled water host collocation scheme.
By adopting the technical scheme, according to the optimal collocation load control parameter under the current working condition of each cold water host in each cold water host collocation scheme, a preset current ratio limit mode is called to carry out independent current ratio data adjustment processing on a collocation single host in the collocation scheme, so that the single current ratio adjustment strategy of each cold water host is more attached to the comprehensive load adjustment requirement of the whole cold water host collocation scheme, the energy efficiency lifting space for carrying out energy efficiency optimization distribution on the energy efficiency of the cold water hosts with different specifications under the equal ratio distribution condition is excavated, the chilled water flow corresponding to the optimal collocation load control parameter is calculated according to the current working performance of the single cold water host, the preset water supply temperature requirement of the whole cold water host collocation scheme is ensured according to the adjustment of the frequency parameter of the collocation chilled water pump, the water supply load of each cold water host is accurately adjusted and controlled, the aim of avoiding the passive influence of the chilled water outlet temperature is fulfilled, and the running energy efficiency of the whole cold water machine set is improved.
The present application may be further configured in a preferred example to: the method comprises the steps of carrying out chilled water pump frequency adjustment processing on a cold water host according to the current ratio limit value adjustment parameter to obtain the chilled water pump frequency parameter which is used for matching with load adjustment corresponding to the cold water host collocation scheme to keep a host water supply temperature set value, and specifically comprises the following steps:
acquiring current water supply load data of each cold water host under the current working performance in real time;
according to the current ratio limit value adjusting parameter, carrying out load adjusting processing on the current water supply load data to obtain a load adjusting parameter of a single cold water main machine;
and according to the load adjustment parameters, carrying out passive adjustment treatment on the water supply frequency of the current chilled water supply of the main chiller, and obtaining a water flow adjustment strategy for adjusting the chilled water flow of the single main chiller.
By adopting the technical scheme, the current water supply load data of each cold water host under the current working performance is obtained in real time, the current water supply load condition under the current working performance is monitored in real time, the current water supply data is subjected to load regulation according to the current ratio limit value regulation parameter, the load of a single cold water host is regulated to meet the load requirement corresponding to the current ratio limit value according to the load regulation parameter, and the freezing water supply flow is regulated by the passive too-lotus node treatment of the water supply frequency of the current freezing water supply of the cold water host, so that the current freezing water flow of the cold water host meets the requirement of the load regulation parameter, and the actual freezing water temperature and the freezing water temperature preset value are ensured to be kept consistent within an error range.
The present application may be further configured in a preferred example to: the passive regulation treatment is carried out on the water supply frequency of the current chilled water supply of the water chiller according to the load regulation parameter to obtain a water flow regulation strategy for regulating the chilled water flow of a single water chiller, which comprises the following steps:
comparing the load adjustment parameter with the optimal load control rate to obtain a load comparison result of a single cold water host under the current operation condition;
judging whether the actual water supply flow of a single water chiller host meets the expected water supply flow requirement according to the load comparison result;
if not, according to the actual water supply flow of each water chiller matching scheme, the frequency adjustment processing of the chilled water pump is carried out on a single water chiller in the water chiller matching scheme, and a water flow adjustment strategy is obtained.
By adopting the technical scheme, the load comparison result between the load adjustment parameter and the optimal load control rate is used for judging whether the water supply temperature of the single cold water host machine deviates or not, further judging whether the final water supply flow of the single cold water host machine meets the expected water supply temperature requirement or not, improving the regulation accuracy of the load fluctuation of the cold water host machine, and when the water supply flow of the single cold water host machine passively fluctuates, adjusting the frequency of the chilled water pump according to the current actual water flow, thereby reducing the water flow influence of the single cold water host machine through a water pump frequency adjustment strategy, and further improving the water supply temperature stability of the single cold water host machine.
The present application may be further configured in a preferred example to: and carrying out current ratio adjustment processing on each cold water host according to the load control data to obtain a load adjustment optimization strategy conforming to the optimal control load rate of each cold water host, wherein the load adjustment optimization strategy specifically comprises the following steps:
calculating the current ratio limit value of each cold water host according to the load control data;
respectively carrying out load factor adjustment treatment on the cold water hosts which are operated in a combined way to obtain comprehensive load control parameters of the combined cold water unit corresponding to the current ratio limit value;
regulating the current water flow of each water chiller to obtain the overall water flow control data of the combined water chiller conforming to the comprehensive load control parameters;
and according to the integral water flow control data and the comprehensive load control parameters, performing energy efficiency interval adjustment processing on the combined water chiller to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval.
According to the technical scheme, the current ratio limit value of each cold water host in the collocation scheme is calculated according to the load control data of the cold water host collocation scheme, so that each cold water host is controlled to work in the optimal energy efficiency interval, the load ratio adjustment processing is respectively carried out on each cold water host in the cold water host collocation scheme, so that the comprehensive load control parameters of the cold water host collocation scheme corresponding to the current ratio limit value are obtained, the overall load ratio of the cold water host collocation scheme is actively adjusted through the comprehensive load control parameters, the overall operation energy efficiency of the cold water host collocation scheme is improved, the actual operation energy efficiency interval of each cold water host is adjusted according to the cooperative cooperation between the overall water flow control data and the comprehensive load control parameters, the load adjustment optimization strategy for controlling the operation of the cold water host in the optimal energy efficiency interval is obtained, the overall operation energy efficiency of the cold water host collocation scheme is improved, and the energy efficiency of the cold water host which is jointly operated in the cold water host collocation scheme is passively through independent adjustment of the cold water host load change of a single cold water host is excavated.
The present application may be further configured in a preferred example to: and according to the overall water flow control data and the comprehensive load control parameters, performing energy efficiency interval adjustment processing on the combined water chiller to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval, and further comprising:
acquiring the current frozen water supply flow of each main chiller and the current water supply load corresponding to the current frozen water supply flow in real time;
calculating a next freezing water supply flow value of a single water chiller according to the comprehensive load control parameters, and obtaining a next water supply load corresponding to the next freezing water supply flow value;
acquiring adjustment load data between the current water supply load and the next water supply load;
and according to the load adjustment data, updating the frequency of the chilled water pump to adjust the water flow of each cold water host machine to respectively carry out water supply compensation treatment, so as to obtain a water flow adjustment strategy which meets the preset chilled water supply temperature requirement of a single cold water host machine.
By adopting the technical scheme, the current chilled water flow corresponding to the current energy efficiency interval of each cold water host is obtained in real time through the preset detection mechanism, the current water supply load of each cold water host is obtained according to the current chilled water flow, the control of the current load rate of the cold water host under the current operation condition is facilitated, the next load rate of each cold water host is calculated through the comprehensive load control parameters, the water flow of each cold water host is accurately controlled through the adjustment load data between the current water supply load and the next water supply load, the adjustment load data is timely subjected to the refrigeration water supply compensation through the refrigeration water supply water flow adjustment, the passive influence of the water supply temperature of the cold water host is reduced, and the water supply temperature stability of the cold water host is ensured.
The second object of the present application is achieved by the following technical solutions:
provided is a cold water main machine load distribution optimizing and adjusting system, comprising:
the load parameter acquisition module is used for acquiring the operation load parameters of the air conditioner refrigerating system in real time;
the cold water host collocation module is used for judging the number of cold water host working tables according to the operation load parameters, and carrying out cold water host collocation processing according to the number of cold water host working tables to obtain a cold water host collocation scheme;
the load simulation control module is used for respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme;
and the load regulation optimizing module is used for carrying out current ratio regulation processing on each cold water host according to the load control data to obtain a load regulation optimizing strategy which accords with the optimal control load rate of each cold water host. .
By adopting the technical scheme, because different specifications exist among different cold water hosts, when a plurality of combined cold water hosts run simultaneously, loads can be automatically distributed, so that the load rate of each cold water host tends to be the same, and the optimal energy efficiency working range of each cold water host is difficult to ensure. The application realizes the independent control of the load ratio of each cold water host machine by continuously setting the current ratio limit value of each cold water host machine, and leads each cold water host machine to be respectively in the working zone with the best energy efficiency, thereby achieving the purpose of improving the working energy efficiency of each cold water host machine.
The third object of the present application is achieved by the following technical solutions:
a computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the cold water host load distribution optimizing adjustment method described above when the computer program is executed.
The fourth object of the present application is achieved by the following technical solutions:
a computer readable storage medium storing a computer program which when executed by a processor performs the steps of the above-described chilled water host load distribution optimizing adjustment method.
In summary, the present application includes at least one of the following beneficial technical effects:
1. under the combined work of a plurality of cold water hosts with different specifications, the load of a combined cold water unit is distributed by actively intervening the single current ratio of the single cold water host, and the corresponding water pump frequency of the cold water host is regulated according to the load factor parameter of the single cold water host, so that the chilled water supply temperature of the single cold water host can meet the preset chilled water supply temperature requirement in real time, the stability of the water supply temperature of the cold water host is ensured, and the working energy efficiency of the cold water host is improved;
2. The method comprises the steps of inputting an operation load parameter, a cold water host collocation scheme and an outdoor meteorological parameter into a pre-trained host performance model to calculate a load control rate, obtaining an optimal load control rate which accords with the optimal operation performance of each cold water host, improving the load control accuracy of each cold water host, actively regulating the load of the cold water host through the active intervention of the current ratio of the single cold water host, obtaining a current ratio limit value regulating parameter corresponding to the optimal load control rate, improving the energy regulation activity of the cold water host, carrying out passive regulation treatment on the frequency of a chilled water pump according to the load regulating parameter, adapting the frequency parameter of the chilled water pump of the single cold water host to the load regulating parameter, and keeping the preset chilled water supply temperature of the single cold water host stable according to the regulation of the frequency parameter of the chilled water pump, thereby improving the comprehensive operation energy efficiency of the combined cold water host;
3. according to the optimal load control rate of each cold water host machine, independent adjustment processing is carried out on the single current ratio data, a single current ratio adjustment strategy is obtained, energy efficiency improvement potential for optimizing energy efficiency of the cold water host machines with different specifications under the equal ratio distribution condition is mined, chilled water flow corresponding to the optimal load control rate is calculated according to the current working performance of the single cold water host machine, the tail end water supply load of the single cold water host machine is adjusted to meet the preset water supply temperature requirement according to the chilled water flow, the purpose of accurately adjusting the water supply load of each cold water host machine is achieved, the passive influence of the cold water host machine on the chilled water outlet temperature is reduced, load distribution optimizing processing is carried out on the single current ratio adjustment strategy of the cold water machine set which is operated in a matched mode of the cold water host machine, and therefore the operation energy efficiency of the whole cold water machine set is improved through the integrated adjustment of the current ratio and the chilled water flow.
Drawings
Fig. 1 is a flowchart of an implementation of a method for optimizing and adjusting load distribution of a water chiller according to an embodiment of the present application.
Fig. 2 is a flowchart illustrating an implementation of step S30 of the method for optimizing and adjusting load distribution of a chiller according to an embodiment of the present application.
Fig. 3 is a flowchart illustrating an implementation of step S103 of the method for optimizing and adjusting load distribution of a chiller according to an embodiment of the present application.
Fig. 4 is a flowchart illustrating an implementation of step S203 of the method for optimizing and adjusting load distribution of a chiller according to an embodiment of the present application.
FIG. 5 is a flowchart showing another implementation of step S103 of the method for optimizing and adjusting the load distribution of the main chiller according to an embodiment of the present application.
Fig. 6 is a flowchart illustrating an implementation of step S40 of the method for optimizing and adjusting load distribution of a chiller according to an embodiment of the present application.
FIG. 7 is a flowchart showing another implementation of step S504 of the method for optimizing and adjusting the load distribution of the chiller according to an embodiment of the present application.
Fig. 8 is a schematic structural diagram of a load distribution optimizing and adjusting system of a chiller according to an embodiment of the present application.
Fig. 9 is a schematic diagram of the internal structure of a computer device for implementing a method for optimizing and adjusting the load distribution of a cold water main machine.
Detailed Description
The present application will be described in further detail with reference to the accompanying drawings.
In one embodiment, as shown in fig. 1, the application discloses a method for optimizing and adjusting load distribution of a main chiller, which specifically comprises the following steps:
S10: and acquiring the operation load parameters of the air conditioner refrigerating system in real time.
Specifically, according to the set water supply temperature data of the combined operation unit, the expected water supply temperature of each water chiller is obtained, meanwhile, the end load data is obtained, and meanwhile, the external environment parameters are obtained through a preset monitoring mechanism, so that the operation load parameters of the combined operation water chiller are obtained, wherein the operation load parameters comprise the expected water supply temperature, the end load, the external environment parameters and the like.
S20: judging the number of working stations of the cold water host according to the operation load parameters, and carrying out cold water host collocation processing according to the number of working stations of the cold water host to obtain a cold water host collocation scheme.
Specifically, according to the requirements of the running load parameters and in combination with the preset number of cold water host machines, the number of cold water host machines working table under the current running working condition is judged, whether the cold water host machine collocation needs to be adjusted is determined according to the current working performance of each cold water host machine, and the adjusted cold water host machine collocation is summarized to generate a cold water host machine collocation scheme.
S30: and respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme.
Specifically, as shown in fig. 2, step S30 specifically includes:
s101: and inputting the operation load parameters, the cold water host collocation scheme and the outdoor meteorological parameters into a pre-trained host performance model to obtain the optimal load control rate of each cold water host.
Specifically, according to the working state of each cold water host, all cold water hosts in the working state are automatically linked with a host performance model, corresponding historical host performance parameters in the host performance model are called according to unique identification codes of the cold water hosts, and the optimal load control rate of each host is obtained through simulation operation of operation load parameters, for example, the current refrigeration attenuation coefficient is calculated according to the use times of each cold water host, the external environment temperature of the cold water host is obtained in real time through a preset sensor, and the optimal load control rate is calculated according to the external environment temperature, the water supply temperature and the current refrigeration attenuation coefficient, wherein the host performance model is obtained by training historical operation data of the cold water hosts with multiple specifications in advance.
S102: and carrying out limit value adjustment processing on the current ratio of each cold water main machine according to the optimal load control rate to obtain a current ratio limit value adjustment parameter corresponding to the optimal load control rate.
Specifically, according to the optimal load control rate, optimal current ratio data corresponding to the optimal load control rate is calculated, and a host current ratio control limit value is given to realize current ratio adjustment, so that a current ratio limit value adjustment parameter corresponding to the optimal load control rate is obtained.
S103: and carrying out the frequency adjustment treatment of the chilled water pump on the chilled water main machine according to the current ratio limit value adjustment parameter to obtain the frequency parameter of the chilled water pump for matching with the load adjustment corresponding to the matching scheme of the chilled water main machine to keep the water supply temperature set value of the main machine.
Specifically, the method for calculating the cold water flow value meeting the load according to the load adjustment parameter comprises the steps of increasing or reducing the water supply frequency of the cold water pump according to the load adjustment parameter, so as to accurately control the cold water flow, obtain the cold water pump frequency parameter matched with the current ratio limiting adjustment parameter, further, carrying out temperature difference compensation treatment on the current water supply temperature of a single cold water host according to the cold water pump frequency parameter, so as to ensure the water supply temperature to be stable, and calculating the cold water flow value meeting the load according to the load adjustment parameter.
In one embodiment, in order to more quickly call the water pump to adjust the chilled water flow of the water chiller, as shown in fig. 3, step S103 specifically includes:
s201: and acquiring current water supply load data of each cold water host under the current working performance in real time.
Specifically, the current water supply load of each cold water host under the current working condition is collected in real time through a detection mechanism preset on each cold water host, for example, the frozen water flow distributed to each cold water host through a freezing main pipe is detected, and the frozen water flow is used as the current water supply load, so that the current water supply load data of each cold water host is obtained.
S202: and carrying out load adjustment processing on the current water supply load data according to the current ratio limiting value adjustment parameters to obtain the load adjustment parameters of the single cold water main machine.
Specifically, according to the linkage relation between the water supply load parameter and the terminal load parameter calculated by the current ratio adjustment parameter, calculating the real-time load adjustment parameter of each cold water host machine, for example, the larger the terminal load is, the larger the required chilled water flow is, so that when the terminal load parameter changes, the processable load rate of the cold water host machine is changed, the frequency of the water pump is adjusted according to the difference between the processable load rate and the historical load rate of the last unit time, the water supply flow of the cold water host machine meets the requirement of the load parameter, the stable chilled water supply temperature of the cold water host machine is kept, the cold water host machine always operates in the optimal energy efficiency interval, and the load adjustment parameter of each cold water host machine is obtained through the difference between the load rate of the current cold water host machine and the ideal load parameter of the optimal energy efficiency interval.
S203: and according to the load adjustment parameters, carrying out passive adjustment treatment on the water supply frequency of the current chilled water supply of the water chiller, and obtaining a water flow adjustment strategy for adjusting the chilled water flow of the single water chiller.
Specifically, as shown in fig. 4, step S203 specifically includes the following steps:
s301: and comparing the load adjustment parameter with the optimal load control rate to obtain a load comparison result of the single cold water host under the current operation condition.
Specifically, the load adjustment parameters of the single cold water host machine are compared with the optimal load control rate, for example, the difference between the load adjustment rate and the optimal load control rate is used as a load comparison result of the single cold water host machine, wherein the load comparison result comprises that the load adjustment rate is higher than the optimal load control rate and the load adjustment rate is lower than the optimal load control rate.
S302: and judging whether the actual water supply flow of the single water chiller host meets the expected water supply flow requirement according to the load comparison result.
Specifically, whether the final water flow of the single cold water host meets the expected water flow demand is judged according to the load comparison result, for example, when the load adjustment rate is higher than the optimal load control rate, the final water flow of the single cold water host is lower than the expected water flow demand; if the load adjustment rate is lower than the optimal load control rate, the final water flow rate of a single cold water host machine is higher than the expected water flow rate demand, and the cold water host machine can exceed the optimal operation energy efficiency interval due to the fact that the water host machine is too high or too low, so that the energy efficiency of the cold water host machine is easy to generate passive interference.
S303: if not, according to the actual water supply flow of each water chiller matching scheme, the frequency adjustment processing of the chilled water pump is carried out on a single water chiller in the water chiller matching scheme, and a water flow adjustment strategy is obtained.
Specifically, if the final water flow of a single water chiller cannot meet the expected water flow demand, for example, when the water flow is higher than the expected water flow demand, the frequency of the water pump of the water chiller is lowered, so that the water pump flow is reduced; when the water flow is lower than the expected water flow demand, the water pump frequency of the cold water hosts is increased, so that the water pump flow is increased, and a water flow regulation strategy of each cold water host is obtained.
S304: if yes, a preset water supply flow detection mechanism is called to continuously monitor the current flow of each cold water host.
Specifically, when the final water flow of the single water chilling host runs within the expected water flow demand range, the single water chilling host can keep stable water flow, so that the water flow of the single water chilling host is continuously monitored through a water flow detection mechanism preset on the water chilling host, when the water supply difference between the current water flow and the expected water flow exceeds a preset value, the flow compensation can be quickly and independently carried out on the single water chilling host, the passive influence of load regulation on the chilled water flow required by the water chilling host is reduced, and the water supply temperature set value is influenced.
In one embodiment, in order to more precisely adjust the current ratio data of each water chiller, as shown in fig. 5, step S103 further includes the following steps:
s401: and respectively acquiring the optimal collocation load control parameters of each cold water main machine in each cold water main machine collocation scheme under the current working condition.
Specifically, current ratio parameters in unit time of each cold water host in the cold water host matching scheme are collected in real time through a preset detection mechanism, for example, current parameters in each unit time of a single cold water host in the cold water host matching scheme, such as historical current parameters in historical unit time, actual current parameters which are currently performed, and expected current parameters in the next unit time which are obtained through calculation of terminal temperature parameters and load control rate are collected respectively, so that single current ratio data of each cold water host are obtained, wherein the single current ratio data comprise the historical current parameters, the actual current parameters, the expected current parameters and the like.
S402: and according to the optimal collocation load control parameters, invoking a preset current ratio limit mode to independently adjust the current ratio data of the collocation single host, thereby obtaining a single current ratio adjustment strategy of each cold water host collocation scheme.
Specifically, a preset current ratio limit value mode is called according to the optimal matching load control parameter to independently adjust the current ratio data of the matching single main machine, for example, when the actual load rate of the single main machine is lower than the optimal load control rate, the single current ratio of the corresponding main machine is adjusted through the optimal load control rate until the terminal temperature parameter is in the optimal energy efficiency interval, and the energy efficiency lifting space for optimizing the energy efficiency of the single main machine when the main machine load is passively output is excavated. The adjusting mode comprises that the single current ratio limit value of each cold water main machine is increased or decreased according to the optimal operation energy efficiency of the corresponding main machine.
S403: and according to a single current ratio regulation strategy, carrying out the frequency regulation treatment of the chilled water pump on each chilled water host collocation scheme to obtain collocation chilled water pump frequency parameters which are matched with the collocation load regulation of each chilled water host collocation scheme.
Specifically, according to a single current ratio adjustment strategy of a single cold water host, the current set frozen water outlet temperature of each cold water host collocation scheme is obtained, and according to the temperature difference condition between the optimal load control rate and the preset expected frozen water outlet temperature of the frozen water main pipe, the collocation load adjustment optimization parameters of the cold water host collocation scheme are calculated, and then the frozen water pump frequency adjustment processing is carried out according to the optimized collocation load adjustment optimization scheme, so that the frozen water pump frequency conversion parameters corresponding to the frozen water host collocation scheme are obtained.
And regulating the current water flow of the single water chiller according to the frequency parameters of the matched chilled water pumps to obtain load control data enabling the chilled water supply temperature to meet a preset value. If the chilled water flow corresponding to the chilled water main machine after the current ratio adjustment is calculated according to the chilled water pump frequency parameter, the current temperature of the chilled water main machine is adjusted according to the obtained chilled water flow, so that the actual chilled water flow adjustment is adapted, the preset requirement of stable chilled water supply temperature is met, and the load control data for improving the running energy efficiency of the chilled water main machine is obtained.
S40: and carrying out current ratio adjustment processing on each cold water host according to the load control data to obtain a load adjustment optimization strategy which accords with the optimal control load rate of each cold water host.
Specifically, as shown in fig. 6, step S40 specifically includes the following steps:
s501: and calculating the current ratio limit value of each cold water host machine according to the load control data.
Specifically, an optimal operation range interval of each cold water host is obtained according to the optimal energy efficiency interval of each cold water host, and a current ratio limit value of each cold water host is calculated according to the optimal operation range interval, so that the regulation of the host load rate is realized through the regulation of the host current ratio.
S502: and respectively carrying out load factor adjustment treatment on the cold water hosts which are operated in a combined way to obtain the comprehensive load control parameters of the combined cold water unit corresponding to the current ratio limit value.
Specifically, the load distribution of each cold water main machine is dynamically adjusted according to the current ratio limit value, and if the current ratio of the current main machine reaches the limit value, refrigeration cannot be further loaded, so that redundant loads are distributed to other main machines, and therefore load distribution is achieved. The single load rate of each water chiller is regulated by limiting the current ratio of the combined water chiller, so that the comprehensive load control parameters of the combined water chiller are obtained, and the overall load rate of the combined water chiller is improved.
S503: and regulating the current water flow of each water chiller to obtain the overall water flow control data of the combined water chiller conforming to the comprehensive load control parameters.
Specifically, according to the comprehensive load control parameters of each cold water host machine, the current water flow is regulated, for example, the current load rate of the cold water host machine is compared with the comprehensive load control parameters to obtain a load rate difference value, and according to the load rate difference value and a preset temperature difference, the water pump flow is regulated, for example, if the current load rate is smaller than the optimal control load rate, the water pump flow is controlled to increase; if the current load rate is larger than the optimal control load rate, controlling the water pump flow to be reduced, thereby adjusting the current water flow of the water chiller to meet the requirement of the terminal water supply temperature, and obtaining the integral water flow control data of the combined water chiller which accords with the optimal control load rate by carrying out comprehensive water flow adjustment among each water chiller of the combined water chiller.
S504: and carrying out energy efficiency interval adjustment processing on the combined water chiller according to the overall water flow control data and the comprehensive load control parameters to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval.
Specifically, according to the correlation between the water flow control data and the comprehensive load control parameters, the dynamic change of the load rate caused by the current ratio change of each cold water host machine is calculated, meanwhile, the current water supply temperature is regulated in real time by controlling the water flow, the energy efficiency interval of the cold water host machines is regulated through the synergistic effect of the water flow and the current ratio, and each cold water host machine is enabled to operate in the optimal energy efficiency interval in unit time, so that a load regulation optimization strategy for controlling the cold water host machines to operate in the optimal energy efficiency interval is obtained.
In one embodiment, in order to better optimally adjust the temperature difference of the water supply of the water chiller, as shown in fig. 7, step S504 further includes:
s601: and acquiring the current frozen water supply flow of each main chiller and the current water supply load corresponding to the current frozen water supply flow in real time.
Specifically, according to the chilled water supply flow and the temperature detection mechanism of the main pipe of the cold water machine or each cold water machine, the current chilled water supply flow of the system and the current water supply load corresponding to the current chilled water supply flow are obtained.
S602: and calculating the next freezing flow value of the single water chiller according to the comprehensive load control parameter, and obtaining the next water supply load corresponding to the next freezing flow value.
Specifically, the water flow of the frozen water supply needed by the cold water host machine to reach the preset water supply temperature under the next operation is obtained according to the comprehensive load control parameters, so that the next frozen flow value of the single cold water host machine is obtained, the water supply frequency of the frozen water pump of the single cold water host machine is adjusted according to the next frozen flow value, the frozen water supply corresponding to the next frozen flow value can be obtained when the next operation condition arrives, and the corresponding next water supply load is obtained according to the adjustment parameters of the water supply frequency of the frozen water pump.
S603: and acquiring adjustment load data between the current water supply load and the next water supply load.
Specifically, because the load ratio is adjusted to cause the required chilled water flow of the water chiller to be passively changed, the adjustment frequency of the water pump of the water chiller is calculated through the difference value between the current water supply load and the next water supply load corresponding to the current chilled water flow, so that the adjustment load data of the frequency of the water pump of each water chiller for adjusting the chilled water flow is obtained.
S604: and according to the load adjustment data, updating the frequency of the chilled water pump to adjust the water flow of each water chiller, and respectively carrying out water supply compensation treatment to obtain a water flow adjustment strategy which meets the preset chilled water supply temperature requirement of a single water chiller.
Specifically, according to the adjustment load data, the chilled water supply pump of each cold water host is controlled to compensate the chilled water supply flow, for example, the chilled water supply flow is dynamically increased or decreased according to the adjustment load data, so that the final end chilled water flow of the cold water host is adapted to the host performance after the current ratio is adjusted, a water flow adjustment strategy of a single cold water host can be obtained, and the passive interference influence on the host energy efficiency caused by the change of the load rate of the cold water host is reduced from multiple dimensions.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
In one embodiment, a system for optimizing and adjusting load distribution of a cold water main engine is provided, and the system for optimizing and adjusting load distribution of the cold water main engine is in one-to-one correspondence with the method for optimizing and adjusting load distribution of the cold water main engine in the embodiment. As shown in fig. 8, the system for optimizing and adjusting the load distribution of the cold water main machine comprises a data acquisition module, an operation main machine judging module, a data processing module and an adjusting and optimizing module. The functional modules are described in detail as follows:
And the load parameter acquisition module is used for acquiring the operation load parameters of the air conditioner refrigerating system in real time.
The cold water host collocation module is used for judging the number of cold water host working tables according to the operation load parameters, and carrying out cold water host collocation processing according to the number of cold water host working tables to obtain a cold water host collocation scheme.
And the load simulation control module is used for respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme.
And the load regulation optimization module is used for carrying out current ratio regulation processing on each cold water host according to the load control data to obtain a load regulation optimization strategy which accords with the optimal control load rate of each cold water host.
Preferably, the data processing module specifically includes:
the optimal control rate calculation submodule is used for inputting the operation load parameters, the cold water host collocation scheme and the outdoor weather parameters into a host performance model obtained through training in advance to obtain the optimal load control rate of each cold water host;
the current ratio adjusting sub-module is used for carrying out limit value adjusting processing on the current ratio of each cold water main machine according to the optimal load control rate to obtain a current ratio limit value adjusting parameter corresponding to the optimal load control rate;
And the chilled water adjusting sub-module is used for carrying out chilled water pump frequency adjustment treatment on the cold water host according to the current ratio limiting value adjusting parameter to obtain the chilled water pump frequency parameter which is used for matching with the load adjustment corresponding to the cold water host collocation scheme to keep the water supply temperature set value of the host.
Preferably, the analog adjustment processing sub-module specifically includes:
and respectively acquiring single current ratio data of each cold water host under the current operation condition.
And according to the optimal load control rate, independently adjusting the single current ratio data to obtain a single current ratio adjusting strategy.
The chilled water outlet temperature acquisition unit is used for calculating chilled water flow corresponding to the optimal load control rate according to the current working performance of the single cold water host.
And carrying out load distribution optimizing treatment on a single current ratio regulating strategy of the water chilling unit according to the flow of the chilled water to obtain integral current ratio regulating data of the combined water chilling unit.
The single current ratio data acquisition unit is used for respectively acquiring the optimal collocation load control parameters of each cold water host in the collocation scheme of each cold water host under the current working condition;
the independent current ratio adjusting unit is used for calling a preset current ratio limit value mode according to the optimal collocation load control parameter to independently adjust the current ratio data collocated with the single host machine to obtain a single current ratio adjusting strategy of each cold water host machine collocation scheme;
And the water pump frequency adjusting unit is used for carrying out the frequency adjusting treatment of the chilled water pump on each water chiller matching scheme according to a single current ratio adjusting strategy to obtain matched chilled water pump frequency parameters which are matched with the matched load adjusting of each water chiller matching scheme.
In one embodiment, to more quickly invoke the water pump to adjust the chilled water flow rate of the chilled water host, the simulated adjustment processing sub-module further includes:
the water supply temperature acquisition unit is used for acquiring current water supply load data of each cold water main machine under the current working performance in real time;
the load adjustment rate calculation unit is used for carrying out load adjustment processing on the current water supply load data according to the current ratio limit value adjustment parameter to obtain the load adjustment parameter of the single cold water main machine;
the water pump frequency passive adjusting unit is used for carrying out passive adjustment treatment on the water supply frequency of the current chilled water supply of the water chiller according to the load adjusting parameters to obtain a water flow adjusting strategy for adjusting the chilled water flow of the single water chiller.
Preferably, the water pump frequency adjustment unit specifically includes:
the load comparison processing subunit is used for comparing the load adjustment parameter with the optimal load control rate to obtain a load comparison result of the single cold water host under the current operation condition;
The water supply temperature demand judging subunit is used for judging whether the actual water supply flow of the single water chiller host meets the expected water supply flow demand according to the load comparison result;
and the water pump frequency adjusting subunit is used for carrying out chilled water pump frequency adjusting treatment on a single water chiller in the water chiller matching scheme according to the actual water supply flow of each water chiller matching scheme if not, so as to obtain a water flow adjusting strategy.
Preferably, the adjustment optimization module specifically includes:
the current ratio limit value acquisition sub-module is used for calculating the current ratio limit value of each cold water host machine according to the load control data;
the load regulation processing sub-module is used for respectively carrying out load rate regulation processing on the cold water main machine which is in joint operation to obtain the comprehensive load control parameter of the joint cold water unit corresponding to the current ratio limit value;
the water flow regulating and processing sub-module is used for regulating and processing the current water flow of each water chiller to obtain the overall water flow control data of the combined water chiller which accords with the comprehensive load control parameters;
and the energy efficiency interval adjusting sub-module is used for carrying out energy efficiency interval adjusting treatment on the combined water chiller according to the whole water flow control data and the comprehensive load control parameters to obtain a load adjusting and optimizing strategy for controlling the water chiller to operate in the optimal energy efficiency interval.
In an embodiment, in order to better optimally adjust the water supply temperature difference of the water chiller, the energy efficiency interval adjusting sub-module further includes:
the current water supply temperature acquisition unit is used for acquiring the current freezing flow of each cold water host machine and the current water supply load corresponding to the current freezing flow in real time;
the next water supply load calculation unit is used for calculating a next freezing flow value of the single cold water main machine according to the comprehensive load control parameter and acquiring a next water supply load corresponding to the next freezing flow value;
an adjustment load acquisition unit for acquiring adjustment load data between a current water supply load and a next water supply load;
the load compensation processing unit is used for updating the frequency of the chilled water pump according to the load adjustment data to adjust the water flow of each cold water host machine to respectively carry out water supply compensation processing, so as to obtain a water flow adjustment strategy which meets the preset chilled water supply temperature requirement of a single cold water host machine.
The specific limitation of the optimizing and adjusting system for the load distribution of the cold water main machine can be referred to as the limitation of the optimizing and adjusting method for the load distribution of the cold water main machine, and is not repeated herein. All or part of each module in the water chiller load distribution optimizing and regulating system can be realized by software, hardware and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a server, and the internal structure of which may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, computer programs, and a database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The database of the computer equipment is used for storing the running load data of the cold water host machine, the current ratio data generated in the process of adjusting the energy efficiency interval, the water pump frequency data and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program when executed by the processor is used for realizing a load distribution optimizing and adjusting method of the cold water main machine.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon which when executed by a processor performs the steps of the chilled water host load distribution optimizing adjustment method described above.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the system is divided into different functional units or modules to perform all or part of the above-described functions.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (8)

1. The optimizing and adjusting method for the load distribution of the cold water main machine is characterized by comprising the following steps of:
acquiring the operation load parameters of an air conditioner refrigerating system in real time;
Judging the number of cold water host machines according to the operation load parameters, and carrying out cold water host machine collocation processing according to the number of cold water host machines to obtain a cold water host machine collocation scheme;
respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme;
carrying out current ratio adjustment processing on each cold water host according to the load control data to obtain a load adjustment optimization strategy which accords with the optimal control load rate of each cold water host;
the method comprises the steps of respectively performing simulation control processing on the cold water hosts in the cold water host collocation scheme to obtain load control data conforming to the cold water host collocation scheme, and specifically comprises the following steps:
inputting the operation load parameters, the cold water host collocation scheme and the outdoor meteorological parameters into a host performance model obtained through training in advance to obtain an optimal load control rate of each cold water host;
performing limit value adjustment processing on the current ratio of each cold water main machine according to the optimal load control rate to obtain a current ratio limit value adjustment parameter corresponding to the optimal load control rate;
According to the current ratio limit value adjusting parameter, performing chilled water pump frequency adjusting treatment on the cold water main machine to obtain a chilled water pump frequency parameter which is used for matching load adjustment corresponding to the cold water main machine collocation scheme to keep a main machine water supply temperature set value;
the current ratio adjustment processing is performed on each cold water host according to the load control data, so as to obtain a load adjustment optimization strategy which accords with the optimal control load rate of each cold water host, and the method specifically comprises the following steps:
calculating the current ratio limit value of each cold water host according to the load control data;
respectively carrying out load factor adjustment treatment on the cold water hosts which are operated in a combined way to obtain comprehensive load control parameters of the combined cold water unit corresponding to the current ratio limit value;
regulating the current water flow of each water chiller to obtain the overall water flow control data of the combined water chiller conforming to the comprehensive load control parameters;
and according to the integral water flow control data and the comprehensive load control parameters, performing energy efficiency interval adjustment processing on the combined water chiller to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval.
2. The method for optimizing and adjusting load distribution of a chiller according to claim 1, wherein said adjusting the chilled water pump frequency according to the current ratio limit value adjusting parameter to obtain a chilled water pump frequency parameter for matching the load adjustment corresponding to the chiller matching scheme to maintain the set value of the water supply temperature of the chiller, further comprising:
respectively obtaining optimal collocation load control parameters of each cold water host in each cold water host collocation scheme under the current working condition;
according to the optimal collocation load control parameter, invoking a preset current ratio limit mode to independently adjust current ratio data of a collocation single host machine, so as to obtain a single current ratio adjustment strategy of each cold water host machine collocation scheme;
and according to the single current ratio regulation strategy, carrying out the frequency regulation treatment of the chilled water pump on each chilled water host collocation scheme to obtain collocation chilled water pump frequency parameters which are matched with collocation load regulation of each chilled water host collocation scheme.
3. The method for optimizing and adjusting the load distribution of a main chiller according to claim 1, wherein the step of performing a chilled water pump frequency adjustment process on the main chiller according to the current ratio limit adjustment parameter to obtain a chilled water pump frequency parameter for matching a load adjustment corresponding to the main chiller matching scheme to maintain a main chiller water supply temperature set value, comprises the following steps:
Acquiring current water supply load data of each cold water host under the current working performance in real time;
according to the current ratio limit value adjusting parameter, carrying out load adjusting processing on the current water supply load data to obtain a load adjusting parameter of a single cold water main machine;
and according to the load adjustment parameters, carrying out passive adjustment treatment on the water supply frequency of the current chilled water supply of the main chiller, and obtaining a water flow adjustment strategy for adjusting the chilled water flow of the single main chiller.
4. The method for optimizing and adjusting the load distribution of a water chiller according to claim 3, wherein the passive adjustment of the water supply frequency of the current chilled water supply of the water chiller according to the load adjustment parameter is performed to obtain a water flow adjustment strategy for adjusting the chilled water flow of a single water chiller, and the method specifically comprises:
comparing the load adjustment parameter with the optimal load control rate to obtain a load comparison result of a single cold water host under the current operation condition;
judging whether the actual water supply flow of a single water chiller host meets the expected water supply flow requirement according to the load comparison result;
if not, according to the actual water supply flow of each water chiller matching scheme, the frequency adjustment processing of the chilled water pump is carried out on a single water chiller in the water chiller matching scheme, and a water flow adjustment strategy is obtained.
5. The method for optimizing and adjusting the load distribution of the water chiller according to claim 1, wherein the energy efficiency interval adjustment process is performed on the combined water chiller according to the overall water flow control data and the comprehensive load control parameter to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval, and the method further comprises:
acquiring the current frozen water supply flow of each main chiller and the current water supply load corresponding to the current frozen water supply flow in real time;
calculating a next freezing water supply flow value of a single water chiller according to the comprehensive load control parameters, and obtaining a next water supply load corresponding to the next freezing water supply flow value;
acquiring adjustment load data between the current water supply load and the next water supply load;
and according to the load adjustment data, updating the frequency of the chilled water pump to adjust the water flow of each cold water host machine to respectively carry out water supply compensation treatment, so as to obtain a water flow adjustment strategy which meets the preset chilled water supply temperature requirement of a single cold water host machine.
6. A chiller load distribution optimizing adjustment system, the chiller load distribution optimizing adjustment system comprising:
The load parameter acquisition module is used for acquiring the operation load parameters of the air conditioner refrigerating system in real time;
the cold water host collocation module is used for judging the number of cold water host working tables according to the operation load parameters, and carrying out cold water host collocation processing according to the number of cold water host working tables to obtain a cold water host collocation scheme;
the load simulation control module is used for respectively performing simulation control processing on the cold water hosts in the cold water host matching scheme to obtain load control data conforming to the cold water host matching scheme;
the load regulation optimizing module is used for carrying out current ratio regulation processing on each cold water host according to the load control data to obtain a load regulation optimizing strategy which accords with the optimal control load rate of each cold water host;
the method comprises the steps of respectively performing simulation control processing on the cold water hosts in the cold water host collocation scheme to obtain load control data conforming to the cold water host collocation scheme, and specifically comprises the following steps:
inputting the operation load parameters, the cold water host collocation scheme and the outdoor meteorological parameters into a host performance model obtained through training in advance to obtain an optimal load control rate of each cold water host;
Performing limit value adjustment processing on the current ratio of each cold water main machine according to the optimal load control rate to obtain a current ratio limit value adjustment parameter corresponding to the optimal load control rate;
according to the current ratio limit value adjusting parameter, performing chilled water pump frequency adjusting treatment on the cold water main machine to obtain a chilled water pump frequency parameter which is used for matching load adjustment corresponding to the cold water main machine collocation scheme to keep a main machine water supply temperature set value;
the current ratio adjustment processing is performed on each cold water host according to the load control data, so as to obtain a load adjustment optimization strategy which accords with the optimal control load rate of each cold water host, and the method specifically comprises the following steps:
calculating the current ratio limit value of each cold water host according to the load control data;
respectively carrying out load factor adjustment treatment on the cold water hosts which are operated in a combined way to obtain comprehensive load control parameters of the combined cold water unit corresponding to the current ratio limit value;
regulating the current water flow of each water chiller to obtain the overall water flow control data of the combined water chiller conforming to the comprehensive load control parameters;
and according to the integral water flow control data and the comprehensive load control parameters, performing energy efficiency interval adjustment processing on the combined water chiller to obtain a load adjustment optimization strategy for controlling the water chiller to operate in an optimal energy efficiency interval.
7. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the chilled water host load distribution optimizing adjustment method according to any one of claims 1 to 5.
8. A computer-readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the steps of the chilled water host load distribution optimizing adjustment method according to any one of claims 1 to 5.
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