Module unit control method, module unit control device and module unit control system

Abstract

The invention relates to a modular unit control method, a modular unit control device and a modular unit control system. The module unit comprises a compressor, and the method comprises the steps that current water temperature data for the module unit are obtained; determining at least one preset water temperature data range, and determining a target water temperature data range matched with the current water temperature data in the preset water temperature data range; wherein the preset water temperature data range comprises an advanced adjustment area, and the advanced adjustment area is used for limiting the water temperature change rate; and corresponding target temperature control parameters of the compressor are determined based on the target water temperature data range, and the actual working state of the compressor is adjusted according to the target temperature control parameters of the compressor. By adopting the method, the water temperature change in the module unit can be stably controlled.

Description

Technical Field

[0001] The present application relates to the technical field of chiller control, and in particular to a module unit control method, a module unit control device and a system. Background Art

[0002] The chiller module in the air-conditioning system (referred to as the modular unit) is widely used in commercial and industrial places. However, in the prior art, the compressor system of the modular unit can only judge the loading and unloading of each compressor based on the inlet water temperature before entering the evaporator for heat exchange with the refrigerant. That is, if the inlet water temperature is higher than the temperature set by the user, a compressor system is loaded, and when the inlet water temperature is lower than the temperature set by the user, a compressor system is unloaded. This conventional control method cannot quickly respond to changes in water temperature, and often results in large water temperature fluctuations or even damage to the modular unit equipment.

[0003] At present, no effective solution has been proposed for the problem of difficult water temperature control of modular units in the prior art. Summary of the invention

[0004] Based on this, it is necessary to provide a module unit control method, module unit control device and system to address the above technical problems.

[0005] In a first aspect, the present application provides a method for controlling a modular unit, wherein the modular unit includes a compressor, and the method includes:

[0006] Get the current water temperature data for the module unit;

[0007] Determine at least one preset water temperature data range, and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data; wherein the preset water temperature data range includes an advance adjustment area, and the advance adjustment area is used to limit the water temperature change rate;

[0008] The target temperature control parameters of the corresponding compressor are determined based on the target water temperature data range, and the actual working state of the compressor is adjusted according to the target temperature control parameters of the compressor.

[0009] In one embodiment, the preset water temperature data range includes a forward working interval and a reverse working interval, the forward working interval includes a first advance adjustment area and a forward adjustment area, and the reverse working interval includes a second advance adjustment area and a reverse adjustment area; determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes:

[0010] Determine a mapping relationship between a preset water temperature data range and a preset temperature control parameter;

[0011] Based on the mapping relationship, the target temperature control parameters of the compressor corresponding to the target water temperature data range in the preset temperature control parameters are determined; wherein, the first advance adjustment control parameter corresponding to the first advance adjustment area has an adjustment direction opposite to that of the forward control parameter corresponding to the forward adjustment area; the second advance adjustment control parameter corresponding to the second advance adjustment area has an adjustment direction opposite to that of the reverse control parameter of the reverse adjustment area; the preset temperature control parameters include the first advance adjustment control parameter, the forward control parameter, the second advance adjustment control parameter and the reverse control parameter.

[0012] In one embodiment, the method further comprises:

[0013] Get the preset target temperature value;

[0014] According to the target temperature control parameters, the actual working state of the compressor is determined, and according to the target temperature value and the real-time water temperature data of the module unit detected in real time, the compressor is controlled to reach a dynamic equilibrium state from the actual working state.

[0015] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; and determining a corresponding target temperature control parameter of the compressor based on the target water temperature data range, including:

[0016] When it is detected that the inlet water temperature is in the first temperature interval in the preset temperature interval, and the current water temperature change rate is in the first water temperature change interval in the preset water temperature change interval, determine the first target water temperature data range in the preset water temperature data range; wherein the first temperature interval is an interval in which the water temperature is greater than the preset temperature threshold value, and the first water temperature change interval is an interval in which the change rate is less than the preset first water temperature change rate;

[0017] Based on the first target water temperature data range, a forward operating frequency is determined; wherein the target temperature control parameter includes the forward operating frequency.

[0018] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; and determining a corresponding target temperature control parameter of the compressor based on the target water temperature data range, including:

[0019] When it is detected that the inlet water temperature is in the second temperature interval in the preset temperature interval, and the current water temperature change rate is in the second water temperature change interval in the preset water temperature change interval, a second target water temperature data range in the preset water temperature data range is determined; wherein the second water temperature change interval is smaller than the first water temperature change interval; when the module unit is cooling, the second temperature interval is smaller than the first temperature interval, and when the module unit is heating, the second temperature interval is larger than the first temperature interval;

[0020] A second reverse operating frequency is determined based on a second target water temperature data range; wherein the target temperature control parameter includes the second reverse operating frequency.

[0021] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; and determining a corresponding target temperature control parameter of the compressor based on the target water temperature data range, including:

[0022] When it is detected that the inlet water temperature is located in a third temperature interval in the preset temperature interval, and the current water temperature change rate is located in the third water temperature change interval in the preset water temperature change interval, a third target water temperature data range in the preset water temperature data range is determined, and a third reverse working frequency is determined based on the third target water temperature data range; wherein the third reverse working frequency is less than the first forward working frequency; the third water temperature change interval is greater than the second water temperature change interval, and the third water temperature change interval is less than the first water temperature change interval, and the target temperature control parameter includes the third reverse working frequency;

[0023] When it is detected that the inlet water temperature is in the third temperature range and the current water temperature change rate is in the fourth water temperature change range in the preset water temperature change range, the fourth target water temperature data range in the preset water temperature data range is determined, and the fourth forward operating frequency is determined based on the fourth target water temperature data range; wherein the fourth forward operating frequency is less than the forward operating frequency, the fourth water temperature change range is less than the third water temperature change range, and the target temperature control parameters include the fourth forward operating frequency; when the module unit is cooling, the third temperature range is less than the first temperature range and the third temperature range is greater than the second temperature range; when the module unit is heating, the third temperature range is greater than the first temperature range and the third temperature range is less than the second temperature range.

[0024] In one embodiment, the current water temperature data includes the inlet water temperature and the current water temperature change rate; the method further includes:

[0025] When it is detected that the inlet water temperature is in a fourth temperature interval in the preset temperature interval and it is detected that the current water temperature change rate is not equal to the preset basic temperature threshold, a fifth operating frequency is determined based on the target water temperature data range, wherein the fifth operating frequency is less than the third reverse operating frequency and less than the fourth forward operating frequency, and the target temperature control parameter includes the fifth operating frequency;

[0026] A final operating state of the compressor is determined based on the fifth operating frequency, and a dynamic equilibrium state is maintained at the final operating state.

[0027] In a second aspect, the present application also provides a module unit control device, comprising:

[0028] The acquisition module is used to obtain the current water temperature data for the module unit;

[0029] A calculation module, used to determine at least one preset water temperature data range, and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data; wherein the preset water temperature data range includes an advance adjustment area, and the advance adjustment area is used to limit the water temperature change rate;

[0030] The generation module determines the target temperature control parameters of the corresponding compressor based on the target water temperature data range, and determines the actual working state of the compressor according to the target temperature control parameters of the compressor.

[0031] In the third aspect, the present application also provides a modular unit control system, including a detection device and a modular unit control device; wherein the detection device is used to obtain current water temperature data and send it to the modular unit control device; the modular unit control device is used to execute any of the above-mentioned modular unit control methods based on the current water temperature data.

[0032] In a fourth aspect, the present application further provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program:

[0033] Get the current water temperature data for the module unit;

[0034] Determine at least one preset water temperature data range, and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data; wherein the preset water temperature data range includes an advance adjustment area, and the advance adjustment area is used to limit the water temperature change rate;

[0035] The temperature control parameters of the corresponding compressor are determined based on the target water temperature data range, and the actual working state of the compressor is determined according to the temperature control parameters of the compressor.

[0036] The above-mentioned module unit control method, module unit control device and system first determine a plurality of preset water temperature data ranges, and then obtain the current water temperature data in the actual operation of the unit, compare the preset water temperature data range with the current water temperature data, determine the target water temperature data range that matches the current water temperature data, and finally determine the temperature control parameters of the compressor based on the target water temperature data range, and determine the actual working state of the compressor based on the temperature control parameters. Through the above-mentioned method, the target temperature control parameters corresponding to the compressor can be obtained by comparing the current water temperature data in actual operation with the preset water temperature data range, which can effectively adapt to different water capacity systems and prevent the unit from loading too fast a water temperature adjustment rate, resulting in the unit being unable to respond in time to protection and large water temperature fluctuations; further, in the present application, at least one advance adjustment area is set in the preset water temperature data range to limit the rate of water temperature change, so as to avoid losses to the module unit due to too fast a water temperature change rate and too large water temperature fluctuations. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of a flow chart of a module unit control method in one embodiment;

[0038] Figure 2 A schematic flow chart of a module unit control method in a preferred embodiment;

[0039] Figure 3 is a structural block diagram of a module unit control device in one embodiment;

[0040] Figure 4 A structural block diagram of a module unit control system in one embodiment;

[0041] Figure 5 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0043] In one embodiment, Figure 1 As shown, a module unit control method is provided, comprising the following steps:

[0044] Step S110, obtaining current water temperature data for the module unit.

[0045] Among them, the above-mentioned current water temperature data is the water temperature data obtained for the current operating status of the module unit. The water temperature data can be the water inlet temperature data before entering the module unit for heat exchange. The water temperature data can include multiple data for joint judgment, such as water temperature, water temperature change rate, etc. The type of data contained in the current water temperature data can be determined by the user according to actual conditions.

[0046] Step S120, determining at least one preset water temperature data range, and determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data, wherein the preset water temperature data range includes an advance adjustment area, and the advance adjustment area is used to limit the water temperature change rate.

[0047] Among them, for different types of preset temperature data ranges, each preset water temperature data range is preset by the user with multiple, such as the preset water temperature data range can include multiple ranges for water temperature, multiple ranges for water temperature change rate, etc. In the present application, after obtaining the current water temperature data, the current water temperature data is matched with the above-mentioned multiple preset water temperature data ranges. When all types of data contained in the current water temperature data correspond to a certain data range in the preset water temperature data range, the match is successful, thereby determining the data range from the preset water temperature data range as the target water temperature data range. Further, the above-mentioned preset water temperature data range includes one or more advance adjustment areas, which are used to limit the rate of water temperature change to avoid the water temperature change rate being too fast. It can be understood that there can be multiple solutions for limiting the water temperature change rate, such as reducing the operating frequency of the compressor, reducing the working gear of the compressor, or adjusting the working parameters of the compressor to a preset set of working parameters. The above-mentioned water temperature change rate can be obtained by subtracting the current water temperature from the water temperature at the previous moment.

[0048] Step S130, determining a target temperature control parameter of the corresponding compressor based on the target water temperature data range, and adjusting the working state of the compressor according to the target temperature control parameter of the compressor.

[0049] The target water temperature data range corresponds to the target temperature control parameter of the compressor. After the target water temperature data range is determined based on the current water temperature data, the working state of the compressor is adjusted according to the target temperature control parameter of the compressor preset in the target water temperature data, wherein the target temperature control parameter includes but is not limited to the control parameter of the compressor frequency, the control parameter of the compressor load quantity or gear position, etc.

[0050] Through step S110 to step S130, the target water temperature data range is determined based on the acquired current water temperature data, and then the target temperature control parameters of the compressor are determined and the working state of the compressor is adjusted accordingly, so that the operation of the compressor can be flexibly controlled according to the actual water temperature changes. Furthermore, in the present application, the water temperature data is detected in real time, and based on the detected water temperature data, the target temperature control parameters of the compressor are adjusted in time to adjust the actual working state of the compressor according to the detected current water temperature data, so as to achieve better cooling / heating effects based on the use of limited working resources. In addition, in the present application, at least one advance adjustment area is set in the preset water temperature data range to limit the rate of water temperature change, so as to avoid losses to the module unit due to excessively fast water temperature change rates and excessive water temperature fluctuations.

[0051] In one embodiment, the preset water temperature data range includes a forward working interval and a reverse working interval, the forward working interval includes a first advance adjustment area and a forward adjustment area, and the reverse working interval includes a second advance adjustment area and a reverse adjustment area; determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes:

[0052] Determine a mapping relationship between a preset water temperature data range and a preset temperature control parameter;

[0053] Based on the mapping relationship, the target temperature control parameters of the compressor corresponding to the target water temperature data range in the preset temperature control parameters are determined; wherein, the first advance adjustment control parameter corresponding to the first advance adjustment area has an adjustment direction opposite to that of the forward control parameter corresponding to the forward adjustment area; the second advance adjustment control parameter corresponding to the second advance adjustment area has an adjustment direction opposite to that of the reverse control parameter of the reverse adjustment area; the preset temperature control parameters include the first advance adjustment control parameter, the forward control parameter, the second advance adjustment control parameter and the reverse control parameter.

[0054] Specifically, the mapping relationship can be pre-set by the staff according to the actual situation, such as the preset water temperature data range can be divided into multiple intervals according to the temperature and other values, and each interval corresponds to a different temperature control parameter, and the mapping relationship can be stored in the form of a mapping table or a curve chart. The preset water temperature data range corresponds to the preset temperature control parameter, and its mapping relationship can be determined by the user, such as it can be set as a preset water temperature data range corresponding to a preset temperature control parameter, or it can be set as a plurality of preset water temperature data ranges corresponding to a preset temperature control parameter, and then based on the mapping relationship, the target temperature control parameter of the compressor corresponding to the target water temperature data range is determined. It can be understood that when the module unit is cooling (or heating), it includes two main working intervals, one is compressor loading, that is, the above-mentioned forward working interval, which is used to reduce (or increase) the ambient temperature, and the other is compressor unloading, that is, the above-mentioned reverse working interval, which is used to make the ambient temperature rise (or fall) when the ambient temperature is over-regulated. At the same time, considering that the water temperature change rate is too fast, it will cause the water temperature to fluctuate greatly, and bring a greater burden to the module unit equipment, and it will also cause the ambient temperature to change greatly, resulting in a poor user experience, so the present application is also provided with an advance adjustment area, the above-mentioned forward adjustment area is when the module unit is cooling (or heating), the compressor is loaded; the reverse adjustment area is when the module unit is over-adjusted, and the compressor is unloaded when the ambient temperature needs to rise (or fall). It can be understood that the first advance adjustment area in the forward working interval is for the compressor to be unloaded, that is, the opposite of the compressor loading corresponding to the forward adjustment area, and the second advance adjustment area in the reverse working interval is for the compressor to be loaded, that is, the opposite of the compressor unloading corresponding to the reverse adjustment area. Through the above method, the mapping relationship between the preset water temperature data range and the preset temperature control parameter can be flexibly determined according to the actual situation, so as to determine the target temperature control parameter that best suits the current environment according to the mapping relationship, and the water temperature change rate is also effectively limited, avoiding the loss of the module unit caused by the excessive change of water temperature.

[0055] In one embodiment, the method further includes:

[0056] Get the preset target temperature value;

[0057] According to the target temperature control parameters, the actual working state of the compressor is determined, and according to the target temperature value and the real-time water temperature data of the module unit detected in real time, the compressor is controlled to reach a dynamic equilibrium state from the actual working state.

[0058] Specifically, in one embodiment, the above-mentioned dynamic equilibrium state is an ideal working state of the compressor when the water temperature of the module unit changes stably after the target temperature control parameters are adjusted. In the present application, the water temperature of the compressor finally changes stably through the above-mentioned setting of the multiple target temperature control parameters of the compressor, and the actual working state tends to the dynamic equilibrium state. It can be understood that to achieve the dynamic equilibrium state, it is not necessary to maintain a certain data unchanged, but to fluctuate up and down at a certain data, but the difference is maintained in a smaller range. Furthermore, due to the influence of the external environment and the different settings of different users, the dynamic equilibrium state is determined by the preset target temperature value and the current water temperature data. Through the above method, the water temperature can be adjusted in time to make the working state of the compressor reach a dynamic equilibrium state, effectively avoiding the situation of machine overload and serious loss due to large changes in water temperature, thereby saving the required cost.

[0059] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval, and the above method further includes:

[0060] When it is detected that the inlet water temperature is in the first temperature interval in the preset temperature interval, and the current water temperature change rate is in the first water temperature change interval in the preset water temperature change interval, determine the first target water temperature data range in the preset water temperature data range; wherein the first temperature interval is an interval in which the water temperature is greater than the preset temperature threshold value, and the first water temperature change interval is an interval in which the change rate is less than the preset first water temperature change rate;

[0061] Based on the first target water temperature data range, a forward operating frequency is determined; wherein the target temperature control parameter includes the forward operating frequency.

[0062] Specifically, the current water temperature change rate is the difference between the current water temperature value and the water temperature value at the previous moment. It can be understood that when the module unit is cooling, the water temperature value at the previous moment is usually greater than the current water temperature value, and when the module unit is heating, the water temperature value at the previous moment is usually less than the current water temperature value. The first temperature interval and the first water temperature change interval can be set by the user. Preferably, the first water temperature change interval is usually set to an interval with a large water temperature change; when the module unit is cooling, the first temperature interval is set to a higher temperature, and when the module unit is heating, the opposite is true, that is, the first temperature interval is set to a lower temperature. Preferably, the forward working frequency can be defined as that within a preset period of time, such as t1, the frequency of the compressor rises by one level. When the inlet water temperature is in the first temperature interval and the current water temperature change rate is in the first water temperature change interval, t1 is usually set to a smaller value, that is, the compressor needs to achieve rapid loading. Furthermore, when the inlet water temperature is in the first temperature interval, the compressor is loaded at the forward working frequency until the current water temperature change rate is greater than or equal to the maximum value of the first water temperature change interval. The above method can achieve the rapid start required at startup, and the cooling / heating conditions are detected by the inlet water temperature and the current water temperature change rate. On the basis of satisfying rapid cooling / heating, it also avoids excessive loading of the compressor to cause the water temperature to change too quickly.

[0063] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval, and the above method further includes:

[0064] When it is detected that the inlet water temperature is in the second temperature interval in the preset temperature interval, and the current water temperature change rate is in the second water temperature change interval in the preset water temperature change interval, a second target water temperature data range in the preset water temperature data range is determined; wherein the second water temperature change interval is smaller than the first water temperature change interval; when the module unit is cooling, the second temperature interval is smaller than the first temperature interval, and when the module unit is heating, the second temperature interval is larger than the first temperature interval;

[0065] A second reverse operating frequency is determined based on a second target water temperature data range; wherein the target temperature control parameter includes the second reverse operating frequency.

[0066] Specifically, the second reverse working frequency is that within a preset period of time, the frequency of the compressor drops by one level, that is, the compressor performs a load reduction operation. It can be understood that the above-mentioned second water temperature change interval is generally set within a negative range, that is, it reflects that when the module unit is cooling, the water temperature value at the previous moment is less than the current water temperature value, and when the module unit is heating, the water temperature value at the previous moment is greater than the current water temperature value. In actual applications, this situation usually occurs because the efficiency of cooling / heating is too high and the water temperature changes too quickly. Through the above method, the problem of untimely load reduction or emergency stop protection of the module unit due to rapid water temperature changes can be effectively avoided. It is more in line with actual application conditions and timely load reduction is performed when the cooling / heating efficiency is too large. It can be understood that when the inlet water temperature is in the second temperature range and the current water temperature change rate is in the second water temperature change range, a water temperature load reduction threshold can be further set. The water temperature load reduction threshold is in the above-mentioned second water temperature change range. Preferably, it can be set to the middle value of the second water temperature change range. When the current water temperature change rate is in the above-mentioned second water temperature change range and is less than or equal to the water temperature load reduction threshold, the load needs to be reduced quickly. When the current water temperature change rate is in the above-mentioned second water temperature change range and is greater than the water temperature load reduction threshold, the load can be reduced slowly. Through this method, the water temperature change rate can be further accurately controlled.

[0067] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; the above method also includes:

[0068] When it is detected that the inlet water temperature is located in a third temperature interval in the preset temperature interval, and the current water temperature change rate is located in the third water temperature change interval in the preset water temperature change interval, a third target water temperature data range in the preset water temperature data range is determined, and a third reverse working frequency is determined based on the third target water temperature data range; wherein the third reverse working frequency is less than the first forward working frequency; the third water temperature change interval is greater than the second water temperature change interval, and the third water temperature change interval is less than the first water temperature change interval, and the target temperature control parameter includes the third reverse working frequency;

[0069] When it is detected that the inlet water temperature is in the third temperature range and the current water temperature change rate is in the fourth water temperature change range in the preset water temperature change range, the fourth target water temperature data range in the preset water temperature data range is determined, and the fourth forward operating frequency is determined based on the fourth target water temperature data range; wherein the fourth forward operating frequency is less than the forward operating frequency, the fourth water temperature change range is less than the third water temperature change range, and the target temperature control parameters include the fourth forward operating frequency; when the module unit is cooling, the third temperature range is less than the first temperature range and the third temperature range is greater than the second temperature range; when the module unit is heating, the third temperature range is greater than the first temperature range and the third temperature range is less than the second temperature range.

[0070] Specifically, in the present application, the working state of the compressor can be judged based on the combination of the inlet water temperature and the current water temperature change rate. For example, in the present embodiment, after the inlet water temperature is determined to be in the third temperature range, the third reverse working frequency or the fourth forward working frequency is selected based on the current water temperature change rate, wherein the above-mentioned reverse working frequency is compressor unloading, that is, the compressor frequency is reduced by one level or the number of compressor operations is reduced by one, etc. Correspondingly, the forward working frequency is compressor loading, that is, the compressor frequency is increased by one level or the number of compressor operations is increased by one, etc. Preferably, the third temperature range is mainly used to further control the water temperature change rate, slow down the loading or unloading speed to better adapt to the water temperature change, so it can be understood that the above-mentioned third reverse working frequency and the fourth forward working frequency are both less than the first forward working frequency, that is, slow loading or slow unloading is achieved, wherein the above-mentioned working frequencies can be set by the user in advance. This embodiment is usually used after a period of startup, that is, after the module unit has just been started and quickly performs cooling / heating, to further control the water temperature change speed, slow down the loading or unloading speed, and make the water temperature change process smoother, avoiding the operating burden of the module unit caused by large water temperature fluctuations.

[0071] In one embodiment, the current water temperature data includes the water inlet temperature and the current water temperature change rate; the preset water temperature data range includes a preset temperature interval and a preset water temperature change interval, and the above method further includes:

[0072] When it is detected that the inlet water temperature is in a fourth temperature interval in the preset temperature interval and it is detected that the current water temperature change rate is not equal to the preset basic temperature threshold, a fifth operating frequency is determined based on the target water temperature data range, wherein the fifth operating frequency is less than the third reverse operating frequency and less than the fourth forward operating frequency, and the target temperature control parameter includes the fifth operating frequency;

[0073] A final operating state of the compressor is determined based on the fifth operating frequency, and a dynamic equilibrium state is maintained at the final operating state.

[0074] Specifically, the fifth operating frequency is less than the third reverse operating frequency, and less than the fourth forward operating frequency, that is, the frequency value of the fifth operating frequency is less than the frequency value of the third reverse operating frequency, and the frequency value of the fifth operating frequency is also less than the frequency value of the fourth forward operating frequency. The above-mentioned basic temperature threshold is generally set to 0, that is, as long as the current water temperature change rate changes, it is adjusted based on the fifth operating frequency, and the above-mentioned final working state is determined. It can be understood that in the present application, in the cooling state, as long as the inlet water temperature begins to rise, the compressor is loaded in advance, the deviation between the water temperature and the inlet water temperature corresponding to the final working state is shortened, and the water temperature accuracy is improved; and as long as the inlet water temperature begins to drop, the compressor is unloaded in advance, thereby also shortening the deviation between the water temperature and the inlet water temperature corresponding to the final working state, and the same is reflected in the heating state. Through the above method, slow adjustment is performed in the fourth temperature range to respond in advance to meet the needs, and at the same time, the deviation from the target value is shortened, so that the water temperature control accuracy is higher.

[0075] This embodiment also provides a specific embodiment of a module unit control method, such as Figure 2 As shown, Figure 2 It is a flow chart of a module unit control method in a preferred embodiment.

[0076] Step S210, determining a mapping relationship between a preset water temperature data range and a preset temperature control parameter, the mapping relationship is shown in the following table:

[0077]

[0078]

[0079] Among them, when the module unit is cooling, A>B>C>D>E>F, and when the module unit is heating, A<B<C<D<E<F. It can be understood that the inlet water temperature is greater than or equal to A, which is the above-mentioned first temperature range, the inlet water temperature is greater than F and less than or equal to E, which is the above-mentioned second temperature range, the inlet water temperature is greater than or equal to C and less than B, which is the above-mentioned third temperature range, and the inlet water temperature is greater than E and less than C, which is the above-mentioned fourth temperature range. Furthermore, vactual in the table is the above-mentioned current water temperature change rate. When the modular unit is cooling, vactual = the water temperature value at the previous moment - the water temperature value at the current moment. When the modular unit is heating, vactual = the water temperature value at the current moment - the water temperature value at the previous moment. Specifically, the above-mentioned first water temperature change interval is the interval of vactual < v1, and the above-mentioned second water temperature change interval is the interval of vactual < 0. Similarly, the third water temperature change interval is the interval of vactual ≥ v2, and the fourth water temperature change interval is the interval of vactual ≤ v3. It can be understood that v1>v2>v3>0>v4, and t4≥t5>t3≥t2>t1≥t7>t6.

[0080] Among them, the above water temperature data includes but is not limited to water inlet temperature, current water temperature change rate and other data. Based on all water temperature data, the preset temperature control parameters corresponding to the preset water temperature data range are uniformly set. It can be understood that when corresponding to different water temperature data, the working efficiency, loading or unloading parameters of the preset temperature control parameters are also different, and the user can set them according to actual conditions. Preferably, the temperature control parameters in this application can cover the entire process from just starting up to the stable working state when the module unit is cooling / heating.

[0081] Step S220, obtaining current water temperature data corresponding to the module unit, the current water temperature data including but not limited to inlet water temperature, ambient temperature, current water temperature change rate, etc.

[0082] Step S230: determining a target temperature control parameter corresponding to the compressor based on the current water temperature data and the mapping relationship.

[0083] Through the above method, slow adjustment is performed within the preset water temperature data range to respond to load demand in advance, while narrowing the target value deviation, making the water temperature control more accurate. Furthermore, when starting up and loading, the rate of water temperature change can still be controlled by appropriate load reduction, reducing the load in advance, and preventing problems such as emergency stop or protection after over-adjustment of water temperature.

[0084] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0085] Based on the same inventive concept, the embodiment of the present application also provides an image segmentation device for implementing the above-mentioned module unit control method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above-mentioned method, so the specific limitations in the one or more module unit control device embodiments provided below can refer to the limitations on the image segmentation method above, and will not be repeated here.

[0086] In one embodiment, Figure 3 As shown, a modular unit control device is provided, including: an acquisition module 31, a calculation module 32 and a generation module 33, wherein:

[0087] The acquisition module 31 is used to acquire the current water temperature data for the module unit.

[0088] The calculation module 32 is used to obtain at least one preset water temperature data range and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data.

[0089] The generating module 33 is used to determine the target temperature control parameter of the corresponding compressor based on the target water temperature data range, and determine the actual working state of the compressor according to the target temperature control parameter of the compressor.

[0090] Specifically, the acquisition module 31 acquires the current water temperature data of the module unit, and then the acquisition module 31 sends the water temperature data to the calculation module 32, wherein the water temperature data includes but is not limited to the inlet water temperature, the current water temperature change rate, the ambient temperature, etc. After the calculation module 32 acquires the above current water temperature data, it determines the target water temperature data range corresponding to the current water temperature data based on the preset water temperature data range. Finally, the generation module 33 determines the corresponding target temperature control parameter based on the target water temperature data range, thereby determining the actual working state of the compressor.

[0091] Through the above device, the change of water temperature data can be flexibly controlled to adapt to systems with different water capacities, and it can also effectively prevent the unit from overloading / unloading too much, resulting in rapid changes in water temperature, solving the problem of the unit's inability to respond in time to emergency stop protection and large water temperature fluctuations.

[0092] Each module in the above-mentioned module unit control device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each of the above modules.

[0093] In one embodiment, Figure 4 As shown, a module unit control system is provided, including a detection device 41 and a module unit control device 42; wherein the detection device 41 is used to obtain current water temperature data and send it to the module unit control device 42;

[0094] The module unit control device 42 is used to execute any of the above module unit control methods based on current water temperature data.

[0095] Specifically, in actual applications, the detection device 41 usually detects the water temperature data before entering the evaporator for heat exchange with the refrigerant, and then sends the current water temperature data to the module unit control device 42, which determines the target temperature control parameters of the compressor based on the current water temperature data.

[0096] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 5 As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used 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, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store the acquired water temperature data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a modular unit control method is implemented.

[0097] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0098] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0099] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0100] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0101] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A module unit control method, characterized in that: The modular unit includes a compressor, and the method includes: Obtaining current water temperature data for the module unit; Determine at least one preset water temperature data range, and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data; wherein the preset water temperature data range includes an advance adjustment area, and the advance adjustment area is used to limit the water temperature change rate; The target temperature control parameter of the corresponding compressor is determined based on the target water temperature data range, and the actual working state of the compressor is adjusted according to the target temperature control parameter of the compressor.

2. The method according to claim 1, characterized in that The preset water temperature data range includes a forward working interval and a reverse working interval, the forward working interval includes a first advance adjustment area and a forward adjustment area, and the reverse working interval includes a second advance adjustment area and a reverse adjustment area; The determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes: Determine a mapping relationship between the preset water temperature data range and the preset temperature control parameter; Based on the mapping relationship, the target temperature control parameter of the compressor corresponding to the target water temperature data range among the preset temperature control parameters is determined; wherein, the first advance adjustment control parameter corresponding to the first advance adjustment area has an adjustment direction opposite to that of the forward control parameter corresponding to the forward adjustment area; the second advance adjustment control parameter corresponding to the second advance adjustment area has an adjustment direction opposite to that of the reverse control parameter of the reverse adjustment area; the preset temperature control parameters include the first advance adjustment control parameter, the forward control parameter, the second advance adjustment control parameter and the reverse control parameter.

3. The method according to claim 1, characterized in that The method further comprises: Get the preset target temperature value; According to the target temperature control parameter, the actual working state of the compressor is determined, and according to the target temperature value and the real-time water temperature data of the module unit detected in real time, the compressor is controlled to reach a dynamic equilibrium state from the actual working state.

4. The method according to claim 1, characterized in that: The current water temperature data includes the inlet water temperature and the current water temperature change rate; The preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; Determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; Determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes: When it is detected that the water inlet temperature is in the first temperature interval of the preset temperature interval, and the current water temperature change rate is in the first water temperature change interval of the preset water temperature change interval, a first target water temperature data range in the preset water temperature data range is determined; wherein the first temperature interval is an interval in which the water temperature is greater than a preset temperature threshold, and the first water temperature change interval is an interval in which the change rate is less than a preset first water temperature change rate; Based on the first target water temperature data range, a forward operating frequency is determined; wherein the target temperature control parameter includes the forward operating frequency.

5. The method according to claim 1, characterized in that The current water temperature data includes the inlet water temperature and the current water temperature change rate; The preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; Determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; Determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes: When it is detected that the water inlet temperature is in a second temperature interval in the preset temperature interval, and the current water temperature change rate is in the second water temperature change interval in the preset water temperature change interval, a second target water temperature data range in the preset water temperature data range is determined; wherein the second water temperature change interval is smaller than the first water temperature change interval; when the module unit is cooling, the second temperature interval is smaller than the first temperature interval, and when the module unit is heating, the second temperature interval is larger than the first temperature interval; A second reverse operating frequency is determined based on the second target water temperature data range; wherein the target temperature control parameter includes the second reverse operating frequency.

6. The method according to claim 1, characterized in that The current water temperature data includes the inlet water temperature and the current water temperature change rate; The preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; Determining a target water temperature data range in the preset water temperature data range that matches the current water temperature data; Determining the corresponding target temperature control parameter of the compressor based on the target water temperature data range includes: When it is detected that the water inlet temperature is located in a third temperature interval in the preset temperature interval, and the current water temperature change rate is located in a third water temperature change interval in the preset water temperature change interval, a third target water temperature data range in the preset water temperature data range is determined, and a third reverse working frequency is determined based on the third target water temperature data range; wherein the third reverse working frequency is less than the first forward working frequency; the third water temperature change interval is greater than the second water temperature change interval, and the third water temperature change interval is less than the first water temperature change interval, and the target temperature control parameter includes the third reverse working frequency; When it is detected that the water inlet temperature is in the third temperature range and the current water temperature change rate is in the fourth water temperature change range in the preset water temperature change range, the fourth target water temperature data range in the preset water temperature data range is determined, and the fourth forward operating frequency is determined based on the fourth target water temperature data range; wherein the fourth forward operating frequency is less than the forward operating frequency, the fourth water temperature change range is less than the third water temperature change range, and the target temperature control parameters include the fourth forward operating frequency; when the module unit is cooling, the third temperature range is less than the first temperature range and the third temperature range is greater than the second temperature range; when the module unit is heating, the third temperature range is greater than the first temperature range and the third temperature range is less than the second temperature range.

7. The method according to claim 1, characterized in that The current water temperature data includes the inlet water temperature and the current water temperature change rate; The preset water temperature data range includes a preset temperature interval and a preset water temperature change interval; The method further comprises: When it is detected that the inlet water temperature is located in a fourth temperature interval in the preset temperature interval and it is detected that the current water temperature change rate is not equal to the preset basic temperature threshold, a fifth operating frequency is determined based on the target water temperature data range, wherein the fifth operating frequency is less than the third reverse operating frequency and less than the fourth forward operating frequency, and the target temperature control parameter includes the fifth operating frequency; A final operating state of the compressor is determined based on the fifth operating frequency, and a dynamic equilibrium state is maintained at the final operating state.

8. A modular unit control device, characterized in that: The device comprises: An acquisition module, used to acquire current water temperature data for the module unit; a calculation module, configured to obtain at least one preset water temperature data range, and determine a target water temperature data range in the preset water temperature data range that matches the current water temperature data; A generating module determines a target temperature control parameter of a corresponding compressor based on the target water temperature data range, and determines an actual working state of the compressor according to the target temperature control parameter of the compressor.

9. A modular unit control system, characterized in that: The system comprises a detection device and a module unit control device as claimed in claim 8; wherein the detection device is used to obtain current water temperature data and send it to the module unit control device; The module unit control device is used to execute the module unit control method according to any one of claims 1 to 7 based on the current water temperature data.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

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