A cooling tower group control method and device for energy station

Abstract

The present application discloses a cooling tower group control method and device for an energy station. The energy station cooling tower control method includes: obtaining a daily control strategy database, including at least one cooling tower group single-day control strategy and a preset environmental parameter curve, and one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy; obtaining the environmental forecast curve for the day; determining whether there is an environmental forecast curve for the day and a preset environmental parameter curve whose similarity exceeds a preset threshold, and if so, obtaining the cooling tower group single-day control strategy corresponding to the preset environmental parameter curve to control the cooling tower group. The present application controls the cooling tower group by presetting a single-day control strategy. In each single day, if there are no special circumstances, the control of the entire cooling tower group can be controlled by the preset control strategy, and there is no need to change it at any time. Compared with the previous passive change method, the automation efficiency is improved, and there is no need to monitor the temperature in real time.

Description

Technical Field

[0001] The present application relates to the technical field of energy stations, and in particular to a method and device for controlling a cooling tower group for an energy station. Background Art

[0002] The existing energy station cooling tower system mainly includes a refrigeration system, an ethylene glycol system and a cooling water system. The refrigeration system consists of a compressor, a condenser, an expansion valve, an evaporator and connecting pipes. The refrigerant absorbs the heat of ethylene glycol in the evaporator and evaporates into refrigerant gas. It enters the compressor from the air intake port for compression to form high-temperature and high-pressure refrigerant gas, which is discharged from the exhaust port to the condenser and exchanges heat with low-temperature cooling water in the condenser. The low-temperature and high-pressure refrigerant liquid enters the expansion valve for throttling and pressure reduction, and finally returns to the evaporator in the form of low-temperature and low-pressure refrigerant liquid to continue heat exchange with ethylene glycol, thus completing a refrigeration cycle. After the refrigerant absorbs all the heat in the evaporator, the temperature of ethylene glycol drops rapidly, flows back to the heat exchange coil in the ice storage tank, and exchanges heat with the chilled water in the ice storage tank. It circulates under the action of the ethylene glycol pump and returns to the evaporator to continue heat exchange. After absorbing the heat of the high-temperature refrigerant in the condenser, the cooling water is pressurized by the cooling water pump and sent to the cooling tower for cooling, and then sent back to the condenser for further heat exchange, completing the cooling water cycle.

[0003] For each cooling water system, there is a corresponding cooling water system control strategy, so that the condenser works within the rated range of conditions to achieve the effect of improving the COP of the refrigeration unit. At present, there are three common cooling water system control strategies: fixed cooling water inlet temperature difference control strategy, fixed cooling water outlet temperature control strategy, and fixed cooling water return temperature control strategy. According to the control accuracy and technical requirements, a fixed cooling water outlet temperature control strategy with the cooling tower outlet temperature as the control target is widely used, specifically to control the cooling water outlet temperature within the set value range.

[0004] For example, there are one or more cooling tower groups in the cooling water system of an energy station. The cooling tower group is composed of one or more cooling towers, and the cooling tower is composed of inlet and outlet valves, cooling fans, water spraying filler layers and other structures. The control element is composed of the inlet and outlet valves of each cooling tower and the cooling fan. In the prior art, the control of the cooling fan and the inlet and outlet valves of the cooling tower is a linkage control, that is, when the valve is opened, the cooling tower is put into operation, and the cooling tower fan is put into operation synchronously. When the valve is closed, the cooling tower is shut down, and the cooling tower fan is shut down synchronously. Generally speaking, the cooling water pump is set as an industrial frequency pump, that is, 50Hz non-convertible frequency operation, which reduces the construction cost of the frequency converter and soft starter. Under normal working conditions, the control strategy of the cooling tower outlet water temperature is as follows: set the cooling tower target outlet water temperature according to the rated working condition of the condenser, and use this target as the set temperature of the cooling tower outlet water temperature. When the actual temperature is higher than the set temperature, randomly turn on a cooling tower to increase the cooling rate and further reduce the cooling tower outlet water temperature; if the actual temperature is lower than the set temperature, after a period of delay, turn off the cooling fan. If the actual temperature rises, continue to turn on the cooling fan, otherwise delay for a period of time, exit the cooling tower, observe the actual temperature dynamics, and choose to add cooling towers or continue to exit cooling fans and cooling towers. Through the above control logic, reduce the operation of cooling fans and cooling towers, reduce the energy consumption of cooling fans, and increase the service life of cooling towers.

[0005] However, the existing cooling tower control method has the following disadvantages:

[0006] They are all passive controls, that is, they work under a specific working condition first, and then adjust when the outlet water temperature changes or is detected to be unsuitable. This makes the entire control passive and unintelligent.

[0007] Therefore, it is hoped that a technical solution can be provided to solve or at least alleviate the above-mentioned deficiencies of the prior art. Summary of the invention

[0008] The object of the present invention is to provide a cooling tower group control method for an energy station to solve at least one of the above-mentioned technical problems.

[0009] In one aspect of the present invention, a method for controlling a cooling tower group for an energy station is provided, wherein the cooling tower group includes a plurality of cooling towers, and the method for controlling a cooling tower group for an energy station includes:

[0010] Acquire a daily control strategy database, wherein the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, wherein one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy;

[0011] Get the environmental forecast curve for the day;

[0012] Determine whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold. If so,

[0013] A single-day control strategy for the cooling tower group corresponding to the preset environmental parameter curve is obtained to control the cooling tower group.

[0014] Optionally, the environmental forecast information for the day includes a temperature forecast curve within 24 hours of the day and a wind forecast curve within 24 hours;

[0015] The preset environmental parameter information includes a preset temperature forecast curve within 24 hours and a preset wind force forecast curve within 24 hours.

[0016] Optionally, the determining whether a similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0017] When the similarity between the temperature forecast curve within 24 hours of the day and a preset temperature forecast curve within 24 hours in each of the preset environmental parameter information is greater than a first threshold, it is judged to be yes.

[0018] Optionally, the determining whether a similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0019] When the similarity between the wind forecast curve within 24 hours of the day and a wind forecast curve within 24 hours in each of the preset environmental parameter information is greater than a first threshold, it is judged to be yes.

[0020] Optionally, the determining whether a similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0021] When the similarity between the temperature forecast curve within 24 hours of the day and a preset temperature forecast curve within 24 hours in each of the preset environmental parameter information is greater than a first threshold, and the similarity between the temperature forecast curve within 24 hours of the day and a preset wind forecast curve within 24 hours in each of the preset environmental parameter information is greater than the first threshold, the judgment is yes.

[0022] Optionally, the energy station cooling tower group control method further comprises:

[0023] Periodically obtain current environment information;

[0024] Periodically judge based on the current environmental information and the environmental forecast curve of the day to see whether the current environmental information deviates from the forecast curve of the day by more than the preset threshold. If so,

[0025] Get the outlet water temperature of each running cooling tower;

[0026] When the outlet water temperature of at least one cooling tower exceeds the theoretical outlet water temperature in the current cooling tower group single-day control strategy,

[0027] Increase the number of cooling towers used and / or increase the cooling fan frequency corresponding to the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature, thereby reducing the outlet water temperature of the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature.

[0028] Optionally, the current environmental information includes current temperature information and current wind speed information.

[0029] The present application also provides a cooling tower group control device for an energy station, the cooling tower group control device for an energy station comprising:

[0030] A database acquisition module, the database acquisition module is used to acquire a daily control strategy database, the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, and one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy;

[0031] A daily environmental forecast curve acquisition module, wherein the daily environmental forecast curve acquisition module is used to acquire the daily environmental forecast curve;

[0032] A judgment module, the judgment module is used to judge whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold;

[0033] A control module, wherein when the judgment module determines that the result is yes, the control module is used to obtain the cooling tower group single-day control strategy corresponding to the preset environmental parameter curve to control the cooling tower group.

[0034] The present application also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the cooling tower group control method for an energy station as described above is implemented.

[0035] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it can implement the cooling tower group control method for an energy station as described above.

[0036] Beneficial Effects

[0037] The present application controls the cooling tower group by means of a preset single-day control strategy. On each single day, if there are no special circumstances, the entire cooling tower group can be controlled by means of the preset control strategy without the need to change it at any time. Compared with the previous passive change method, the automation efficiency is improved and there is no need for real-time temperature monitoring. While satisfying active regulation, the present application also reduces equipment investment and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a flow chart of a method for controlling a cooling tower group for an energy station according to an embodiment of the present application.

[0039] Figure 2 It is used to realize Figure 1 The system equipment schematic diagram of the cooling tower group control method for an energy station is shown. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.

[0041] like Figure 1 The energy station cooling tower control method shown includes:

[0042] Step 1: Obtain a daily control strategy database, wherein the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, wherein one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy;

[0043] Step 2: Obtain the environmental forecast curve for the day;

[0044] Step 3: Determine whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold. If so,

[0045] Step 4: Obtain the cooling tower group daily control strategy corresponding to the preset environmental parameter curve to control the cooling tower group.

[0046] The present application controls the cooling tower group by means of a preset single-day control strategy. In each single day, if there are no special circumstances, the entire cooling tower group can be controlled by means of the preset control strategy without the need to change it at any time. Compared with the previous passive change method, the automation efficiency is improved and there is no need for real-time temperature monitoring.

[0047] In real life, the weather conditions in most areas have their own rules. For example, the weather on a certain day in spring in Beijing may be almost the same as the weather on that day last year. In this case, when controlling the cooling tower group, if there are no special circumstances, it is only necessary to control it according to the control method of that day last year. Therefore, through the above method, various control strategies can be generated through historical data, and various control strategies based on days can be generated, thereby realizing automatic active control.

[0048] In this embodiment, the environmental forecast information for the day includes a temperature forecast curve within 24 hours of the day and a wind forecast curve within 24 hours;

[0049] The preset environmental parameter information includes a preset temperature forecast curve within 24 hours and a preset wind force forecast curve within 24 hours.

[0050] In fact, the influence of the external environment on the outlet water temperature of the cooling tower is the influence of temperature on the one hand and the influence of wind force on the other. Through these two influences, similarity comparison can be achieved.

[0051] In this embodiment, the single-day control strategy refers to how to control the cooling tower group under the known cooling load demand of the energy station within 24 hours of the day. For example, when the cooling load of the energy station is 70000RT, two refrigeration units need to be turned on, and two cooling water pumps need to be turned on accordingly. The cooling water pump runs at a fixed frequency of 50Hz, and the flow rate under rated conditions is 2400t / h. The water flow rate of a single cooling tower (settable) is 900t / h. According to the above conditions and hydraulic balance calculation, it is concluded that at least 6 cooling towers need to be turned on.

[0052] Once this basic condition is determined, the control strategy for the day can be obtained based on the environmental conditions of the day. For example, on a certain spring day in Beijing (for example, March 5, 2022), the weather forecast curve (which can be a temperature curve and / or a wind curve) is more similar to the actual weather on the same day last year (for example, March 5, 2021) than the preset threshold. For example, the similarity exceeds 96%. At this time, in the daily control strategy database, there is also a preset environmental parameter curve (in fact, the preset environmental parameter curve is formulated based on the actual weather on March 5, 2021). If the similarity between the weather forecast curve and the preset environmental parameter curve exceeds the preset threshold, the single-day control strategy for the cooling tower group corresponding to the preset environmental parameter curve is obtained (in fact, the single-day control strategy for the cooling tower group can be the specific working conditions of the cooling tower group on March 5, 2021. For example, on March 5, 2021, assuming that 6 cooling towers are turned on in the first 12 hours, and 7 cooling towers are turned on in the next 12 hours, this is a single-day control strategy).

[0053] In one embodiment, determining whether a similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0054] When the similarity between the temperature forecast curve within 24 hours of the day and a preset temperature forecast curve within 24 hours in each of the preset environmental parameter information is greater than a first threshold, it is judged to be yes.

[0055] In one embodiment, the determining whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0056] When the similarity between the wind forecast curve within 24 hours of the day and a wind forecast curve within 24 hours in each of the preset environmental parameter information is greater than a first threshold, it is judged to be yes.

[0057] In this embodiment, the determination of whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises:

[0058] When the similarity between the temperature forecast curve within 24 hours of the day and a preset temperature forecast curve within 24 hours in each of the preset environmental parameter information is greater than the first threshold, and the similarity between the wind forecast curve within 24 hours of the day and a preset wind forecast curve within 24 hours in each of the preset environmental parameter information is greater than the first threshold, the judgment is yes.

[0059] In this embodiment, the cooling tower group control method for an energy station further includes:

[0060] Periodically obtain current environment information;

[0061] Periodically judge based on the current environmental information and the environmental forecast curve of the day to see whether the current environmental information deviates from the forecast curve of the day by more than the preset threshold. If so,

[0062] Get the outlet water temperature of each running cooling tower;

[0063] When the outlet water temperature of at least one cooling tower exceeds the theoretical outlet water temperature in the current cooling tower group single-day control strategy,

[0064] Increase the number of cooling towers used and / or increase the cooling fan frequency corresponding to the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature, thereby reducing the outlet water temperature of the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature.

[0065] First, the weather forecast itself may have errors. Therefore, sometimes, although the daily environmental forecast curve matches the preset environmental parameter curve, the actual weather is different. For example, the temperature at 12 o'clock on the day shown in the daily environmental forecast curve is 20 degrees. However, there is a sudden strong wind on that day, and the temperature suddenly drops to 15 degrees at 12 o'clock. At this time, it is considered that whether the current environmental information deviates from the 12 o'clock position in the daily forecast curve exceeds the preset threshold.

[0066] In this embodiment, the current environmental information includes current temperature information and current wind speed information.

[0067] In this embodiment, the daily forecast curve includes the daily temperature forecast curve and the daily wind speed forecast curve. In these two curves, the horizontal axis is time, and the numerical axis of the temperature forecast curve represents temperature, and the numerical axis of the wind speed forecast curve represents wind speed.

[0068] In this embodiment, a periodic judgment is made based on the current environmental information and the environmental forecast curve for the day. Whether the current environmental information deviates from the forecast curve for the day and exceeds a preset threshold can be made by separately judging the above-mentioned temperature forecast curve and the current temperature, the wind speed forecast curve and the current wind speed, or a comprehensive judgment can be made.

[0069] The present application also provides a cooling tower group control device for an energy station, the cooling tower group control device for an energy station includes a database acquisition module, a daily environmental forecast curve acquisition module, a judgment module and a control module, the database acquisition module is used to acquire a daily control strategy database, the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, and one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy; the daily environmental forecast curve acquisition module is used to acquire the daily environmental forecast curve; the judgment module is used to judge whether there is a daily environmental forecast curve and a preset environmental parameter curve whose similarity exceeds a preset threshold; the control module is used to acquire the cooling tower group single-day control strategy corresponding to the preset environmental parameter curve to control the cooling tower group when the judgment module judges to be yes.

[0070] It can be understood that the above description of the method is also applicable to the description of the device.

[0071] The present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the computer program, the above-mentioned cooling tower group control method for an energy station is implemented.

[0072] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the above three-dimensional building modeling method can be implemented.

[0073] Figure 2 It is an exemplary structural diagram of an electronic device that can implement the cooling tower group control method for an energy station provided according to an embodiment of the present application.

[0074] like Figure 2 As shown, the electronic device includes an input device 501, an input interface 502, a central processor 503, a memory 504, an output interface 505, and an output device 506. The input interface 502, the central processor 503, the memory 504, and the output interface 505 are interconnected through a bus 507, and the input device 501 and the output device 506 are connected to the bus 507 through the input interface 502 and the output interface 505, respectively, and then connected to other components of the electronic device. Specifically, the input device 504 receives input information from the outside, and transmits the input information to the central processor 503 through the input interface 502; the central processor 503 processes the input information based on the computer executable instructions stored in the memory 504 to generate output information, temporarily or permanently stores the output information in the memory 504, and then transmits the output information to the output device 506 through the output interface 505; the output device 506 outputs the output information to the outside of the electronic device for use by the user.

[0075] That is to say, Figure 2 The electronic device shown can also be implemented as comprising: a memory storing computer executable instructions; and one or more processors, which can implement the combination when executing the computer executable instructions. Figure 1 A cooling tower group control method for an energy station is described.

[0076] In one embodiment, Figure 2 The electronic device shown can be implemented to include: a memory 504 configured to store executable program codes; and one or more processors 503 configured to run the executable program codes stored in the memory 504 to execute the three-dimensional building modeling method in the above-mentioned embodiment.

[0077] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0078] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0079] Computer readable media include permanent and non-permanent, removable and non-removable, and the media can be implemented by any method or technology to store information. The information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), data versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0080] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0081] In addition, it is obvious that the word "comprising" does not exclude other units or steps. Multiple units, modules or devices stated in the device claim can also be implemented by one unit or the overall device through software or hardware.

[0082] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and a module, a program segment or a part of a code includes one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes identified in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or the total flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0083] The processor referred to in this embodiment may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0084] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the device / terminal equipment by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0085] In this embodiment, if the module / unit integrated in the device / terminal equipment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. Although the present application is disclosed as above in terms of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

[0086] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0087] In addition, it is obvious that the word "comprising" does not exclude other units or steps. Multiple units, modules or devices stated in the device claim can also be implemented by one unit or the overall device through software or hardware.

[0088] Although the present invention has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements may be made thereto based on the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all fall within the scope of protection claimed by the present invention.

Claims

1. A method for controlling a cooling tower group for an energy station, wherein the cooling tower group comprises a plurality of cooling towers. It is characterized in that The energy station cooling tower control method comprises: Acquire a daily control strategy database, wherein the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, wherein one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy; Get the environmental forecast curve for the day; Determine whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold. If so, Obtaining a single-day control strategy for the cooling tower group corresponding to the preset environmental parameter curve to control the cooling tower group; The environmental forecast curve for the day includes the temperature forecast curve within 24 hours of the day and the wind forecast curve within 24 hours; The preset environmental parameter curve includes a preset 24-hour temperature forecast curve and a preset 24-hour wind forecast curve; The determining whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises: When the similarity between the temperature forecast curve within 24 hours of the day and one of the preset temperature forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, the judgment is yes; Or, when the similarity between the wind forecast curve within 24 hours of the day and a wind forecast curve within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, it is judged to be yes; Or, when the similarity between the temperature forecast curve within 24 hours of the day and one of the preset temperature forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, and the similarity between the temperature forecast curve within 24 hours of the day and one of the preset wind forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, it is judged to be yes; Periodically obtain current environment information; Periodically judge based on the current environmental information and the environmental forecast curve of the day to see whether the current environmental information deviates from the forecast curve of the day by more than the preset threshold. If so, Get the outlet water temperature of each running cooling tower; When the outlet water temperature of at least one cooling tower exceeds the theoretical outlet water temperature in the current cooling tower group single-day control strategy, Increase the number of cooling towers used and / or increase the cooling fan frequency corresponding to the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature, thereby reducing the outlet water temperature of the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature; The current environment information includes current temperature information and current wind speed information.

2. A cooling tower group control device for an energy station, It is characterized in that The cooling tower group control device for the energy station includes: A database acquisition module, the database acquisition module is used to acquire a daily control strategy database, the daily control strategy database includes at least one cooling tower group single-day control strategy and a preset environmental parameter curve, and one preset environmental parameter curve corresponds to one cooling tower group single-day control strategy; A daily environmental forecast curve acquisition module, wherein the daily environmental forecast curve acquisition module is used to acquire the daily environmental forecast curve; A judgment module, the judgment module is used to judge whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold; A control module, wherein when the judgment module determines that the result is yes, the control module is used to obtain a single-day control strategy for the cooling tower group corresponding to the preset environmental parameter curve, so as to control the cooling tower group; The environmental forecast curve for the day includes the temperature forecast curve within 24 hours of the day and the wind forecast curve within 24 hours; The preset environmental parameter curve includes a preset 24-hour temperature forecast curve and a preset 24-hour wind forecast curve; The determining whether the similarity between a daily environmental forecast curve and a preset environmental parameter curve exceeds a preset threshold comprises: When the similarity between the temperature forecast curve within 24 hours of the day and one of the preset temperature forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, the judgment is yes; Or, when the similarity between the wind forecast curve within 24 hours of the day and a wind forecast curve within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, it is judged to be yes; Or, when the similarity between the temperature forecast curve within 24 hours of the day and one of the preset temperature forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, and the similarity between the temperature forecast curve within 24 hours of the day and one of the preset wind forecast curves within 24 hours of each of the preset environmental parameter curves is greater than a first threshold, it is judged to be yes; Periodically obtain current environment information; Periodically judge based on the current environmental information and the environmental forecast curve of the day to see whether the current environmental information deviates from the forecast curve of the day by more than the preset threshold. If so, Get the outlet water temperature of each running cooling tower; When the outlet water temperature of at least one cooling tower exceeds the theoretical outlet water temperature in the current cooling tower group single-day control strategy, Increase the number of cooling towers used and / or increase the cooling fan frequency corresponding to the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature, thereby reducing the outlet water temperature of the cooling towers whose outlet water temperature exceeds the theoretical outlet water temperature; The current environment information includes current temperature information and current wind speed information.

3. An electronic device, It is characterized in that The electronic device includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the computer program, the cooling tower group control method for an energy station as described in claim 1 is implemented.

4. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it can implement the cooling tower group control method for an energy station as claimed in claim 1.

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