A method and device for adjusting system state parameters of a heat pump system

Abstract

The present invention discloses a method and device for adjusting system state parameters of a heat pump system, wherein input control parameters and corresponding adjustment methods and adjustment amounts are received; for each input control parameter, the input control parameter is adjusted according to the adjustment method and adjustment amount corresponding to the input control parameter, and the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined according to the input control parameter and the corresponding adjustment method and adjustment amount; each acceleration control parameter is adjusted according to the determined change method, change amount and a preset buffer time period. In the present invention, not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted. By adjusting the acceleration control parameters corresponding to the input control parameters, an acceleration effect is played, the adjustment speed of the heat pump system is improved, the timeliness of the adjustment of the heat pump system is improved, and the heat pump system can respond quickly to changes in demand.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pump system control, and in particular to a method and device for adjusting system state parameters of a heat pump system. Background Art

[0002] At present, heat pump systems are widely used in fields such as air conditioners, refrigerators, and thermodynamic test benches. When using a heat pump system, when demand changes, it is necessary to adjust the system state parameters such as the evaporation pressure and condensing pressure of the heat pump system to respond to the change in demand.

[0003] The current way to adjust the system state parameters of the heat pump system is to adjust the input control parameters corresponding to the system state parameters, so as to achieve the purpose of adjusting the system state parameters. After adjusting the input control parameters, it is often hoped that the system state parameters of the heat pump system can quickly regain a stable state. However, due to the large inertia of the heat pump system, the time lag is serious, so it often takes a long time to wait after adjusting the input control parameters before the system state parameters of the heat pump system can regain a stable state. This feature is particularly obvious in large-scale heat pump systems. After adjusting the input control parameters, the time for the system state parameters of the heat pump system to regain a stable state is even more than 30 minutes. This leads to poor timeliness in the adjustment of the heat pump system, making it impossible for the heat pump system to respond quickly to changes in demand. Summary of the invention

[0004] The present invention provides a method and device for adjusting system state parameters of a heat pump system, which can improve the timeliness of adjustment of the heat pump system, so that the heat pump system can quickly respond to demand changes. The specific technical solution is as follows.

[0005] In a first aspect, the present invention provides a method for adjusting system state parameters of a heat pump system, the method comprising:

[0006] Receiving input control parameters and corresponding adjustment methods and adjustment amounts;

[0007] For each input control parameter, adjust the input control parameter according to the adjustment method and adjustment amount corresponding to the input control parameter, and determine the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount;

[0008] The acceleration control parameters are adjusted according to the determined change mode, change amount and preset buffer time period.

[0009] Optionally, the step of determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount according to the input control parameter and the corresponding adjustment mode and adjustment amount includes:

[0010] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage;

[0011] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side is increased by the first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a third preset percentage and the expansion valve opening is increased by a fourth preset percentage;

[0012] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage;

[0013] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by the second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage;

[0014] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage;

[0015] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by the third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage;

[0016] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage;

[0017] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by the fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage;

[0018] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage;

[0019] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by the first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage;

[0020] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage;

[0021] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is increased by the second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a twenty-third preset percentage and the expansion valve opening is increased by a twenty-fourth preset percentage;

[0022] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage;

[0023] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by the third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth preset percentage;

[0024] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage;

[0025] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by the fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by 31 preset percentages and the expansion valve opening is reduced by 32 preset percentages;

[0026] When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage;

[0027] When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening;

[0028] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage;

[0029] When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

[0030] Optionally, when there is only one input control parameter, the step of adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period includes:

[0031] The acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

[0032] Optionally, when there is more than one input control parameter, the step of adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period includes:

[0033] Determining whether the determined acceleration control parameters have the same acceleration control parameters;

[0034] If it exists, take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to be restored to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter except the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule;

[0035] If it does not exist, for each acceleration control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter to the corresponding change value of the acceleration control parameter to a third mutation value in a corresponding change manner, and the third mutation value is controlled to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

[0036] Optionally, the first preset change law is a linear change law, an exponential function change law, or a quadratic function change law.

[0037] In a second aspect, the present invention provides a system state parameter adjustment device for a heat pump system, the device comprising:

[0038] A receiving module, used for receiving input control parameters and corresponding adjustment methods and adjustment amounts;

[0039] A determination module, for adjusting each input control parameter according to an adjustment method and an adjustment amount corresponding to the input control parameter, and determining an acceleration control parameter corresponding to the input control parameter and a corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount;

[0040] The adjustment module is used to adjust various acceleration control parameters according to the determined change mode, change amount and preset buffer time period.

[0041] Optionally, the determining module is specifically used to:

[0042] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage;

[0043] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side is increased by the first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a third preset percentage and the expansion valve opening is increased by a fourth preset percentage;

[0044] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage;

[0045] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by the second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage;

[0046] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage;

[0047] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by the third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage;

[0048] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage;

[0049] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by the fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage;

[0050] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage;

[0051] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by the first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage;

[0052] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage;

[0053] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is increased by the second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a twenty-third preset percentage and the expansion valve opening is increased by a twenty-fourth preset percentage;

[0054] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage;

[0055] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by the third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth-sixth preset percentage;

[0056] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage;

[0057] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by the fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirty-first preset percentage and the expansion valve opening is reduced by a thirty-second preset percentage;

[0058] When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage;

[0059] When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening;

[0060] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage;

[0061] When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

[0062] Optionally, the adjustment module is specifically used to:

[0063] When there is only one input control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

[0064] Optionally, the adjustment module includes:

[0065] a judgment submodule, for judging whether there is an identical acceleration control parameter in the determined acceleration control parameters when there is more than one input control parameter, and if so, triggering the first adjustment submodule, and if not, triggering the second adjustment submodule;

[0066] The first regulating submodule is used to take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to be restored to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter other than the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule;

[0067] The second regulating submodule is used to control, for each acceleration control parameter, the acceleration control parameter to change from the current value of the acceleration control parameter to a third mutation value in a corresponding change manner, and to control the third mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

[0068] Optionally, the first preset change law is a linear change law, an exponential function change law, or a quadratic function change law.

[0069] As can be seen from the above content, a method and device for adjusting the system state parameters of a heat pump system provided by an embodiment of the present invention can receive input control parameters and corresponding adjustment methods and adjustment amounts; for each input control parameter, the input control parameter is adjusted according to the adjustment method and adjustment amount corresponding to the input control parameter, and the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined according to the input control parameter and the corresponding adjustment method and adjustment amount; each acceleration control parameter is adjusted according to the determined change method, change amount and preset buffer time period. In this embodiment, not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted. By adjusting the acceleration control parameters corresponding to the input control parameters, an acceleration effect is played, which greatly reduces the time required for the system state parameters to reach a stable state again, improves the adjustment speed of the heat pump system, and improves the timeliness of the adjustment of the heat pump system, so that the heat pump system can respond quickly to changes in demand. Of course, any product or method implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

[0070] The innovative features of the embodiments of the present invention include:

[0071] 1. Not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted. By adjusting the acceleration control parameters corresponding to the input control parameters, an acceleration effect is achieved, which greatly reduces the time required for the system state parameters to reach a stable state again, improves the adjustment speed of the heat pump system, improves the timeliness of the adjustment of the heat pump system, and enables the heat pump system to respond quickly to changes in demand.

[0072] 2. When the input control parameters are the parameters of the evaporator refrigerant side or the condenser refrigerant side, such as the inlet temperature and the inlet flow rate, the compressor speed can be selected as the acceleration control parameter, the expansion valve opening can be selected as the acceleration control parameter, and the compressor speed and the expansion valve opening can be used as acceleration control parameters at the same time, which provides a certain degree of freedom for the selection of the acceleration control parameters and achieves the purpose of flexible selection according to actual needs.

[0073] 3. By conducting tests in advance, the change curves of the state parameters of each system will not have overshoot peaks, and the change mode and change amount of the acceleration control parameters that can complete the adjustment process in a shorter time will be determined as the acceleration control parameters corresponding to the input control parameters and the corresponding change mode and change amount, thereby achieving the purpose of reasonably determining the acceleration control parameters, and realizing that when a certain system state parameter is quickly adjusted, it will not cause overshoot of other system state parameters, thus avoiding overshoot that endangers the safety of the heat pump system.

[0074] 4. When there is more than one input control parameter, the same acceleration control parameter is used as the target acceleration control parameter, and the sum of the changes corresponding to the same acceleration control parameter is calculated as the target change of the target acceleration control parameter. The target acceleration control parameter is controlled to change from the target current value to the target mutation value in a corresponding change manner, and the target mutation value is controlled to recover to the target current value at the end of the preset buffer time period according to a second preset change rule. In this way, the process of the system state parameters reaching a stable state again when multiple input control parameters change simultaneously is accelerated by superposition, thereby improving the timeliness of the regulation of the heat pump system. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative work.

[0076] Figure 1 A schematic structural diagram of a heat pump system provided by an embodiment of the present invention;

[0077] Figure 2 A schematic flow chart of a method for adjusting system state parameters of a heat pump system provided by an embodiment of the present invention;

[0078] Figure 3 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment mode are the increase of the inlet temperature of the refrigerant side of the condenser, and the selected acceleration control parameter and the corresponding change mode are the increase of the compressor speed;

[0079] Figure 4 It is a schematic diagram of the rapid effect of the condensing pressure when the input control parameter and the corresponding adjustment mode are the increase of the inlet temperature of the condenser refrigerant side, and the selected acceleration control parameter and the corresponding change mode are the increase of the expansion valve opening;

[0080] Figure 5 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment mode are the increase of the inlet temperature of the refrigerant side of the evaporator, and the selected acceleration control parameter and the corresponding change mode are the increase of the expansion valve opening;

[0081] Figure 6 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the reduction of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the reduction of the expansion valve opening;

[0082] Figure 7 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the expansion valve opening, and the selected acceleration control parameter and the corresponding change method are the increase of the compressor speed;

[0083] Figure 8 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening;

[0084] Fig. 9 It is a schematic diagram of the effect of the rapid adjustment of the condensing pressure on the outlet temperature of the refrigerant side of the condenser when the input control parameter and the corresponding adjustment method are the increase of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening;

[0085] Fig.10A schematic structural diagram of a system state parameter regulating device for a heat pump system provided in an embodiment of the present invention.

[0086] Figure 1 Among them, 1 compressor, 2 condenser, 3 liquid storage tank, 4 expansion valve, 5 evaporator, 6 gas-liquid separator. DETAILED DESCRIPTION

[0087] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0088] It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present invention and the accompanying drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0089] The embodiment of the present invention discloses a method and device for adjusting system state parameters of a heat pump system, which can improve the timeliness of adjustment of the heat pump system so that the heat pump system can quickly respond to demand changes. The embodiment of the present invention is described in detail below.

[0090] Figure 1 A schematic diagram of a heat pump system according to an embodiment of the present invention is shown in FIG. Figure 1 The heat pump system includes a compressor 1, a condenser 2, a liquid storage tank 3, an expansion valve 4, an evaporator 5, a gas-liquid separator 6, a controller and a plurality of connecting pipelines. The compressor 1 is connected to the condenser 2, the condenser 2 is connected to the liquid storage tank 3, the liquid storage tank 3 is connected to the expansion valve 4, the expansion valve 4 is connected to the evaporator 5, the evaporator 5 is connected to the gas-liquid separator 6, the gas-liquid separator 6 is connected to the compressor 1, and each device is connected through a connecting pipeline. The compressor 1, the condenser 2, the liquid storage tank 3, the expansion valve 4, the evaporator 5 and the gas-liquid separator 6 are all connected to the controller. Among them, the refrigerant on the refrigerant side of the evaporator 5 and the refrigerant on the refrigerant side of the condenser 2 can be water, coolant or air. Figure 1 The arrows in the figure represent the flow direction of the coolant.

[0091] Figure 2 A schematic flow chart of a method for adjusting system state parameters of a heat pump system provided by an embodiment of the present invention is provided. The method is applied to an electronic device, which may be a controller of a heat pump system.

[0092] The method specifically comprises the following steps:

[0093] S110: receiving input control parameters and corresponding adjustment methods and adjustment amounts.

[0094] When the demand changes, for example, when the external ambient temperature changes or when the demand of the heat pump system itself changes, the user can adjust the input control parameters corresponding to the system state parameters of the heat pump system. Specifically, the user inputs the input control parameters that need to be adjusted and the corresponding adjustment methods and adjustment amounts. The controller receives the input control parameters and the corresponding adjustment methods and adjustment amounts. It can be understood that the input control parameters correspond to the system state parameters that need to be adjusted, and the input control parameters can be understood as the control parameters used in the prior art to adjust the states of each system. For example, when the condensing pressure needs to be adjusted in the prior art, the inlet temperature of the refrigerant side of the condenser is used. In the present invention, when the condensing pressure needs to be adjusted, the input control parameter is the inlet temperature of the refrigerant side of the condenser. The adjustment method and adjustment amount corresponding to the input control parameters can also be referred to the prior art.

[0095] Among them, the input control parameters are adjustable parameters of various components in the heat pump system that affect the system state parameters. Specifically, the input control parameters may include compressor speed, expansion valve opening, evaporator refrigerant side inlet temperature, evaporator refrigerant side inlet flow, condenser refrigerant side inlet flow and condenser refrigerant side inlet temperature.

[0096] S120: For each input control parameter, adjust the input control parameter according to the adjustment method and adjustment amount corresponding to the input control parameter, and determine the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount.

[0097] In an embodiment of the present invention, in order to make the system state parameters of the heat pump system quickly return to a stable state, the inventor proposes a rapid adjustment method for the system state parameters, that is, a method for adjusting the system state parameters of the heat pump system provided by an embodiment of the present invention. In this method, not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted, wherein the acceleration control parameters are adjustable parameters of various devices in the heat pump system that accelerate the system state parameters to return to a stable state. Among them, the acceleration control parameters can be understood as control parameters that can work in conjunction with the input control parameters to increase the speed at which the input control parameters adjust the corresponding system state parameters. The change mode and change amount of the acceleration control parameters should be able to accelerate the adjustment of the system state parameters on the one hand, and on the other hand, it should be able to ensure that the system state parameters do not overshoot or the overshoot amplitude is small, and can meet the error range requirements of the system state parameters.

[0098] Therefore, after receiving the input control parameters and the corresponding adjustment methods and adjustment amounts, for each input control parameter, the input control parameter is adjusted according to the adjustment method and adjustment amount corresponding to the input control parameter. For example: assuming that the input control parameter is the inlet temperature of the refrigerant side of the evaporator, the corresponding adjustment method is to increase, and the corresponding adjustment amount is 3°C, then according to the adjustment method and adjustment amount corresponding to the input control parameter, the input control parameter is adjusted to control the inlet temperature of the refrigerant side of the evaporator to increase by 3°C.

[0099] Then, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined according to the input control parameter and the corresponding adjustment mode and adjustment amount.

[0100] The above-mentioned determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount according to the input control parameter and the corresponding adjustment mode and adjustment amount may include:

[0101] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage;

[0102] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a third preset percentage and the expansion valve opening increases by a fourth preset percentage;

[0103] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage;

[0104] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage;

[0105] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage;

[0106] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage;

[0107] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage;

[0108] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage;

[0109] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage;

[0110] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage;

[0111] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage;

[0112] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-third preset percentage and the expansion valve opening increases by a twenty-fourth preset percentage;

[0113] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage;

[0114] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth preset percentage;

[0115] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage;

[0116] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirty-first preset percentage and the expansion valve opening is reduced by a thirty-second preset percentage;

[0117] When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage;

[0118] When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening;

[0119] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage;

[0120] When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

[0121] That is to say, when the input control parameter and the corresponding adjustment method are that the inlet temperature of the refrigerant side of the evaporator increases, the selectable acceleration control parameter and the corresponding change method are that the compressor speed increases and / or the expansion valve opening increases; when the input control parameter and the corresponding adjustment method are that the inlet temperature of the refrigerant side of the condenser increases, the selectable acceleration control parameter and the corresponding change method are that the compressor speed increases and / or the expansion valve opening increases.

[0122] When the input control parameter and the corresponding adjustment method are the reduction of the inlet temperature of the refrigerant side of the evaporator, the selectable acceleration control parameter and the corresponding change method are the reduction of the compressor speed and / or the reduction of the expansion valve opening; when the input control parameter and the corresponding adjustment method are the reduction of the inlet temperature of the refrigerant side of the condenser, the selectable acceleration control parameter and the corresponding change method are the reduction of the compressor speed and / or the reduction of the expansion valve opening.

[0123] When the input control parameter and the corresponding adjustment method are an increase in the inlet flow rate on the evaporator refrigerant side, the selectable acceleration control parameter and the corresponding change method are an increase in the compressor speed and / or an increase in the expansion valve opening; when the input control parameter and the corresponding adjustment method are an increase in the inlet flow rate on the condenser refrigerant side, the selectable acceleration control parameter and the corresponding change method are an increase in the compressor speed and / or an increase in the expansion valve opening.

[0124] When the input control parameter and the corresponding adjustment method are for reducing the inlet flow rate on the refrigerant side of the evaporator, the selectable acceleration control parameter and the corresponding change method are for reducing the compressor speed and / or reducing the expansion valve opening; when the input control parameter and the corresponding adjustment method are for reducing the inlet flow rate on the refrigerant side of the condenser, the selectable acceleration control parameter and the corresponding change method are for reducing the compressor speed and / or reducing the expansion valve opening.

[0125] When the input control parameter and the corresponding adjustment method are that the compressor speed increases, the selectable acceleration control parameter and the corresponding change method are that the expansion valve opening increases.

[0126] When the input control parameter and the corresponding adjustment method are that the compressor speed is reduced, the selectable acceleration control parameter and the corresponding change method are that the expansion valve opening is reduced.

[0127] When the input control parameter and the corresponding adjustment method are that the expansion valve opening is increased, the selectable acceleration control parameter and the corresponding change method are that the compressor speed is increased.

[0128] When the input control parameter and the corresponding adjustment method are that the expansion valve opening is reduced, the selectable acceleration control parameter and the corresponding change method are that the compressor speed is reduced.

[0129] It can be seen that when the input control parameters are the parameters of the evaporator refrigerant side or the condenser refrigerant side, such as the inlet temperature and the inlet flow rate, the compressor speed can be selected as the acceleration control parameter, the expansion valve opening can be selected as the acceleration control parameter, and the compressor speed and the expansion valve opening can be used as acceleration control parameters at the same time, which provides a certain degree of freedom for the selection of the acceleration control parameters and achieves the purpose of flexible selection according to actual needs.

[0130] It should be noted that the first preset percentage to the fortieth preset percentage are determined according to specific experimental results, and the third preset percentage and the fourth preset percentage are both less than the first preset percentage, and the third preset percentage and the fourth preset percentage are both less than the second preset percentage; similarly, the seventh preset percentage and the eighth preset percentage are both less than the fifth preset percentage, and the seventh preset percentage and the eighth preset percentage are both less than the sixth preset percentage; the eleventh preset percentage and the twelfth preset percentage are both less than the ninth preset percentage, and the eleventh preset percentage and the twelfth preset percentage are both less than the tenth preset percentage; the fifteenth preset percentage and the sixteenth preset percentage are both less than the thirteenth preset percentage, and the fifteenth preset percentage and the sixteenth preset percentage are both less than the fourteenth preset percentage. preset percentage; the nineteenth preset percentage and the twentieth preset percentage are both less than the seventeenth preset percentage, and the nineteenth preset percentage and the twenty-third preset percentage are both less than the eighteenth preset percentage; the twenty-third preset percentage and the twenty-fourth preset percentage are both less than the twenty-first preset percentage, and the twenty-third preset percentage and the twenty-fourth preset percentage are both less than the twenty-second preset percentage; the twenty-seventh preset percentage and the twenty-eighth preset percentage are both less than the twenty-fifth preset percentage, and the twenty-seventh preset percentage and the twenty-eighth preset percentage are both less than the twenty-sixth preset percentage; the thirty-first preset percentage and the thirty-second preset percentage are both less than the twenty-ninth preset percentage, and the thirty-first preset percentage and the thirty-second preset percentage are both less than the thirtieth preset percentage.

[0131] The following demonstrates the effect of rapid adjustment of system state parameters under different input control parameters and different acceleration control parameters:

[0132] Specifically, Figure 3 and Figure 4 As shown, Figure 3 This is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the inlet temperature of the condenser refrigerant side, and the selected acceleration control parameter and the corresponding change method are the increase of the compressor speed. Figure 4 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the inlet temperature of the refrigerant side of the condenser, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening.

[0133] Figure 3 and Figure 4 The upper left part shows the change process of the input control parameter over time. The input control parameter jumps at 100s, changing from the current value to the final value. Before 100s, the entire heat pump system has reached a stable state, and each system state parameter remains stable. The solid line in the lower left part shows the change process of the accelerated control parameter when the system state parameter rapid adjustment method is adopted, and the dotted line shows the change process of the accelerated control parameter when the system state parameter rapid adjustment method is not adopted. The solid line in the right half shows the change process of the system state parameter when the system state parameter rapid adjustment method is adopted, and the dotted line shows the change process of the system state parameter when the system state parameter rapid adjustment method is not adopted. Considering the large number of system state parameters, the condensing pressure, that is, the average pressure on the refrigerant side of the condenser, is used as a representative for display.

[0134] Depend on Figure 3 and Figure 4 It can be seen that whether increasing the compressor speed or the expansion valve opening, a good effect of rapid stabilization of the condensing pressure can be achieved. The acceleration control parameters do not change with time when the rapid adjustment method of the system state parameters is not adopted. The condensing pressure begins to change at 100s, that is, after the input control parameters are changed, and gradually reaches the final steady-state value after a certain period of time. Regardless of whether the rapid adjustment method of the system state parameters is adopted, the final steady-state value of the system state parameters is the same. By comparing the dotted line and the solid line in the right half, it can be seen that after the rapid adjustment of the system state parameters, the time required for the system state parameters to reach the final steady-state value is greatly reduced, which realizes the acceleration of the response speed of the heat pump system. In addition, when the rapid adjustment of the system state parameters is adopted, the system state parameters of the heat pump system do not show obvious overshoot.

[0135] akin, Figure 5 This is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the inlet temperature of the evaporator refrigerant side, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening. Figure 6 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the reduction of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the reduction of the expansion valve opening. Figure 7 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the expansion valve opening, and the selected acceleration control parameter and the corresponding change method are the increase of the compressor speed.

[0136] Since the change in the acceleration control parameter and the reasonable value of the preset buffer time period in step S130 are affected by the structural parameters of the heat pump system such as evaporation pressure, condensing pressure, refrigerant type, pipeline length, liquid storage tank size and the change in input control parameters, it is difficult to calculate them through theoretical formulas. Therefore, they need to be obtained through experiments based on specific heat pump systems.

[0137] Specifically, for a specific heat pump system, the acceleration control parameter corresponding to each input control parameter and the corresponding change mode and change amount can be determined by pre-testing, wherein the pre-testing method can be:

[0138] First, only the input control parameter corresponding to a certain system state parameter is adjusted to obtain the time when the system state parameter reaches a stable state again. Secondly, the buffer time is initially selected as one tenth of the time when the system state parameter reaches a stable state again, and then gradually try to change the change mode and change amount corresponding to the acceleration control parameter, so that the change curve of each system state parameter has neither overshoot spikes nor can complete the adjustment process in a relatively short time. Finally, the change mode and change amount corresponding to the acceleration control parameter that makes the change curve of each system state parameter have neither overshoot spikes nor can complete the adjustment process in a relatively short time are determined as the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount.

[0139] When a certain system state parameter is adjusted very quickly, another system state parameter may be significantly over-adjusted. Figure 8 and Fig. 9 As shown, Figure 8 It is a schematic diagram of the effect of quickly adjusting the condensing pressure when the input control parameter and the corresponding adjustment method are the increase of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening. Fig. 9 It is a schematic diagram of the effect of rapid adjustment of the condensing pressure on the outlet temperature of the refrigerant side of the condenser when the input control parameter and the corresponding adjustment method are the increase of the compressor speed, and the selected acceleration control parameter and the corresponding change method are the increase of the expansion valve opening. Figure 8 and Fig. 9 The contents and Figure 3 Similar, no further elaboration is required here.

[0140] Depend on Figure 8 and Fig. 9It can be seen that the rapid adjustment method of the system state parameters provided in the embodiment of the present invention enables the condensing pressure to regain a stable state more quickly. However, in this process, a large overshoot peak appears in the outlet temperature of the refrigerant side of the condenser, and the overshoot of the system state parameters will seriously endanger the safety of the heat pump system. Therefore, in the above-mentioned preliminary test, the change mode and change amount corresponding to the acceleration control parameter that makes the change curve of each system state parameter not have an overshoot peak and can complete the adjustment process in a shorter time are finally determined as the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount.

[0141] Therefore, by conducting experiments in advance, the change curves of the state parameters of each system will not have overshoot peaks, and the change mode and change amount of the acceleration control parameters that can complete the adjustment process in a shorter time will be determined as the acceleration control parameters corresponding to the input control parameters and the corresponding change mode and change amount, thereby achieving the purpose of reasonably determining the acceleration control parameters, and realizing that when a certain system state parameter is quickly adjusted, it will not cause overshoot of other system state parameters, thereby avoiding overshoot that endangers the safety of the heat pump system.

[0142] S130: Adjusting various acceleration control parameters according to the determined change mode, change amount and preset buffer time period.

[0143] After determining the acceleration control parameters corresponding to each input control parameter and the corresponding change mode and change amount, each acceleration control parameter can be adjusted according to the determined change mode, change amount and preset buffer time period.

[0144] Since there may be only one input control parameter or more than one input control parameter, the manner of adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period is also different according to the number of input control parameters, and specifically may include the following two manners:

[0145] First way:

[0146] When there is only one input control parameter, adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period may include:

[0147] The acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of a preset buffer time period according to a first preset change rule.

[0148] When there is only one input control parameter, it can be adjusted directly, that is, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter to a first mutation value in a determined change manner, and the first mutation value is controlled to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

[0149] Exemplarily, the first preset change rule may be a linear change rule, an exponential function change rule, or a quadratic function change rule.

[0150] For example: assuming that the evaporation pressure of the heat pump system is about 300 kPa, the condensation pressure is about 1.1 MPa, the refrigerant type is R134a, the total refrigerant mass is about 3.5 kg, the preset buffer time period is 180 s, the input control parameter is the inlet temperature of the refrigerant side of the evaporator, the adjustment method corresponding to the input control parameter is increasing, and the corresponding adjustment amount is 3°C; the acceleration control parameter corresponding to the input control parameter is determined to be the expansion valve opening, the determined change method is increasing, and the determined change amount is 20%, assuming that the current value of the expansion valve opening is A, and the first preset change law is a linear change law; then the expansion valve opening is controlled to increase by 20% from A to the first mutation value A+20%, and the first mutation value A+20% is controlled to return to A at the end of 180 s according to the linear change law.

[0151] Second way:

[0152] When there is more than one input control parameter, adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period may include:

[0153] Determining whether the determined acceleration control parameters have the same acceleration control parameters;

[0154] If it exists, take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to recover to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter except the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to recover to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule;

[0155] If it does not exist, for each acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the third mutation value in a corresponding manner, and control the third mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

[0156] Since the same acceleration control parameters may exist in the acceleration control parameters corresponding to the input control parameters, when there is more than one input control parameter, it is necessary to determine whether the same acceleration control parameters exist in the determined acceleration control parameters. If the same acceleration control parameter exists, the change process of the same acceleration control parameter is superimposed, that is, the same acceleration control parameter is used as the target acceleration control parameter, and the sum of the changes corresponding to the same acceleration control parameter is calculated as the target change of the target acceleration control parameter. The target acceleration control parameter is controlled to change from the target current value to the target mutation value in a corresponding change manner, and the target mutation value is controlled to restore to the target current value at the end of the preset buffer time period according to a second preset change rule. For each acceleration control parameter except the same acceleration control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and the second mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule.

[0157] For example: assuming that the evaporator refrigerant side inlet temperature and the expansion valve opening need to be increased at the same time, the input control parameters corresponding to the evaporator refrigerant side inlet temperature and the corresponding change mode and change amount are a 20% increase in compressor speed and a 10% increase in expansion valve opening, and the input control parameters corresponding to the expansion valve opening and the corresponding change mode and change amount are a 10% increase in compressor speed, assuming that the current value of the compressor speed is B, assuming that the current value of the expansion valve opening is C, assuming that the second preset change law is a linear change law, the third preset change law is an exponential function change law, and the preset buffer time period is 180s; then there are the same acceleration control parameters at this time: compressor speed, The compressor speed is taken as the target acceleration control parameter, and the sum of the changes corresponding to the compressor speed, 20%+10%=30%, is calculated as the target change of the target acceleration control parameter, 30%. At this time, the current value of the compressor speed is the target current value, and the compressor speed is controlled to increase by 30% from B to the target mutation value B+30%, and the target mutation value B+30% is controlled to recover to the target current value B at the end of 180s according to a linear change law; for the acceleration control parameters other than the compressor speed, namely the expansion valve opening, the expansion valve opening is controlled to increase by 10% from C to the second mutation value C+10%, and the second mutation value C+10% is controlled to recover to C at the end of 180s according to an exponential function change law.

[0158] Therefore, when there is more than one input control parameter, the same acceleration control parameter is used as the target acceleration control parameter, and the sum of the changes corresponding to the same acceleration control parameter is calculated as the target change of the target acceleration control parameter. The target acceleration control parameter is controlled to change from the target current value to the target mutation value in a corresponding change manner, and the target mutation value is controlled to restore to the target current value at the end of the preset buffer time period according to a second preset change law. Therefore, the process of the system state parameters reaching a stable state again when multiple input control parameters change simultaneously is accelerated by superposition, thereby improving the timeliness of the regulation of the heat pump system.

[0159] If there are no identical acceleration control parameters, each acceleration control parameter can be adjusted individually, that is, for each acceleration control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter to the third mutation value in a corresponding manner, and the third mutation value is controlled to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

[0160] Exemplarily, the second preset change law, the third preset change law and the fourth preset change law can all be linear change laws, exponential function change laws or quadratic function change laws, but the preset change laws corresponding to different acceleration control parameters can be different, and of course can also be the same.

[0161] As can be seen from the above content, this embodiment can receive input control parameters and corresponding adjustment methods and adjustment amounts; for each input control parameter, the input control parameter is adjusted according to the adjustment method and adjustment amount corresponding to the input control parameter, and the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined according to the input control parameter and the corresponding adjustment method and adjustment amount; each acceleration control parameter is adjusted according to the determined change method, change amount and preset buffer time period. In this embodiment, not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted. By adjusting the acceleration control parameters corresponding to the input control parameters, an acceleration effect is played, which greatly reduces the time required for the system state parameters to reach a stable state again, improves the adjustment speed of the heat pump system, and improves the timeliness of the adjustment of the heat pump system, so that the heat pump system can quickly respond to changes in demand.

[0162] Fig.10 A schematic diagram of a state parameter adjustment device for a heat pump system provided by an embodiment of the present invention. Fig.10 The present invention provides a system state parameter adjustment device for a heat pump system, the device comprising:

[0163] The receiving module 1001 is used to receive input control parameters and corresponding adjustment methods and adjustment amounts;

[0164] A determination module 1002 is used to adjust each input control parameter according to an adjustment method and an adjustment amount corresponding to the input control parameter, and determine an acceleration control parameter corresponding to the input control parameter and a corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount;

[0165] The adjustment module 1003 is used to adjust various acceleration control parameters according to the determined change mode, change amount and preset buffer time period.

[0166] A system state parameter adjustment device for a heat pump system provided in an embodiment of the present invention can receive input control parameters and corresponding adjustment methods and adjustment amounts; for each input control parameter, the input control parameter is adjusted according to the adjustment method and adjustment amount corresponding to the input control parameter, and the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined according to the input control parameter and the corresponding adjustment method and adjustment amount; each acceleration control parameter is adjusted according to the determined change method, change amount and preset buffer time period. In this embodiment, not only the input control parameters corresponding to the system state parameters are adjusted, but also the acceleration control parameters corresponding to the input control parameters are adjusted. By adjusting the acceleration control parameters corresponding to the input control parameters, an acceleration effect is played, which greatly reduces the time required for the system state parameters to reach a stable state again, improves the adjustment speed of the heat pump system, and improves the timeliness of the adjustment of the heat pump system, so that the heat pump system can quickly respond to changes in demand.

[0167] In one implementation, the determining module 1002 may be specifically configured to:

[0168] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage;

[0169] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side is increased by the first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a third preset percentage and the expansion valve opening is increased by a fourth preset percentage;

[0170] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage;

[0171] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by the second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage;

[0172] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage;

[0173] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by the third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage;

[0174] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage;

[0175] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by the fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage;

[0176] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage;

[0177] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by the first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage;

[0178] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage;

[0179] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is increased by the second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a twenty-third preset percentage and the expansion valve opening is increased by a twenty-fourth preset percentage;

[0180] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage;

[0181] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by the third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth-sixth preset percentage;

[0182] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage;

[0183] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by the fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirty-first preset percentage and the expansion valve opening is reduced by a thirty-second preset percentage;

[0184] When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage;

[0185] When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening;

[0186] When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage;

[0187] When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

[0188] In one implementation, the adjustment module 1003 may be specifically configured to:

[0189] When there is only one input control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

[0190] In one implementation, the adjustment module 1003 may include:

[0191] a judgment submodule, for judging whether there is an identical acceleration control parameter in the determined acceleration control parameters when there is more than one input control parameter, and if so, triggering the first adjustment submodule, and if not, triggering the second adjustment submodule;

[0192] The first regulating submodule is used to take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to be restored to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter other than the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule;

[0193] The second regulating submodule is used to control, for each acceleration control parameter, the acceleration control parameter to change from the current value of the acceleration control parameter to a third mutation value in a corresponding change manner, and to control the third mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

[0194] Optionally, the first preset change law is a linear change law, an exponential function change law, or a quadratic function change law.

[0195] The above device embodiment corresponds to the method embodiment and has the same technical effect as the method embodiment. For specific description, please refer to the method embodiment. The device embodiment is obtained based on the method embodiment. For specific description, please refer to the method embodiment part, which will not be repeated here.

[0196] Those skilled in the art can understand that the accompanying drawings are only schematic diagrams of an embodiment, and the modules or processes in the accompanying drawings are not necessarily required to implement the present invention.

[0197] Those skilled in the art can understand that the modules in the device in the embodiment can be distributed in the device in the embodiment according to the description of the embodiment, or can be changed accordingly and located in one or more devices different from the embodiment. The modules in the above embodiment can be combined into one module, or can be further divided into multiple sub-modules.

[0198] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for adjusting system state parameters of a heat pump system, It is characterized in that The method comprises: Receiving input control parameters and corresponding adjustment methods and adjustment amounts; For each input control parameter, adjust the input control parameter according to the adjustment method and adjustment amount corresponding to the input control parameter, and determine the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount; Adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period; When there is only one input control parameter, the step of adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period includes: The acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

2. The method according to claim 1, It is characterized in that The step of determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount according to the input control parameter and the corresponding adjustment mode and adjustment amount comprises: When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side is increased by the first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a third preset percentage and the expansion valve opening is increased by a fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by the second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by the third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by the fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by the first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is increased by the second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a twenty-third preset percentage and the expansion valve opening is increased by a twenty-fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by the third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by the fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by 31 preset percentages and the expansion valve opening is reduced by 32 preset percentages; When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage; When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

3. The method according to claim 1, It is characterized in that When there is more than one input control parameter, the step of adjusting each acceleration control parameter according to the determined change mode, change amount and preset buffer time period includes: Determining whether the determined acceleration control parameters have the same acceleration control parameters; If it exists, take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to be restored to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter except the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule; If it does not exist, for each acceleration control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter to the corresponding change value of the acceleration control parameter to a third mutation value in a corresponding change manner, and the third mutation value is controlled to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

4. The method according to claim 1, It is characterized in that The first preset change rule is a linear change rule, an exponential function change rule or a quadratic function change rule.

5. A system state parameter adjustment device for a heat pump system, It is characterized in that The device comprises: A receiving module, used for receiving input control parameters and corresponding adjustment methods and adjustment amounts; A determination module, for adjusting each input control parameter according to an adjustment method and an adjustment amount corresponding to the input control parameter, and determining an acceleration control parameter corresponding to the input control parameter and a corresponding change method and change amount according to the input control parameter and the corresponding adjustment method and adjustment amount; An adjustment module, used for adjusting various acceleration control parameters according to the determined change mode, change amount and preset buffer time period; The adjustment module is specifically used for: When there is only one input control parameter, the acceleration control parameter is controlled to change from the current value of the acceleration control parameter by a determined change amount to a first mutation value in a determined change manner, and the first mutation value is controlled to restore to the current value of the acceleration control parameter at the end of the preset buffer time period according to a first preset change rule.

6. The device as claimed in claim 5, It is characterized in that The determination module is specifically used for: When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side increases by a first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a first preset percentage or the expansion valve opening increases by a second preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the evaporator refrigerant side is increased by the first preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a third preset percentage and the expansion valve opening is increased by a fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by a second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a fifth preset percentage or the expansion valve opening is increased by a sixth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is increased by the second preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a seventh preset percentage and the expansion valve opening is increased by an eighth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by a third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a ninth preset percentage or the expansion valve opening is reduced by a tenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet temperature is reduced by the third preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by an eleventh preset percentage and the expansion valve opening is reduced by a twelfth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by a fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirteenth preset percentage or the expansion valve opening is reduced by a fourteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet temperature of the condenser refrigerant side is reduced by the fourth preset temperature, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a fifteenth preset percentage and the expansion valve opening is reduced by a sixteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by a first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a seventeenth preset percentage or the expansion valve opening increases by an eighteenth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the evaporator refrigerant side increases by the first preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a nineteenth preset percentage and the expansion valve opening increases by a twentieth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side increases by a second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed increases by a twenty-first preset percentage or the expansion valve opening increases by a twenty-second preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is increased by the second preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is increased by a twenty-third preset percentage and the expansion valve opening is increased by a twenty-fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by a third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-fifth preset percentage or the expansion valve opening is reduced by a twenty-sixth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the evaporator refrigerant side inlet flow rate is reduced by the third preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-seventh preset percentage and the expansion valve opening is reduced by a twenty-eighth-sixth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by a fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a twenty-ninth preset percentage or the expansion valve opening is reduced by a thirtieth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the inlet flow rate of the condenser refrigerant side is reduced by the fourth preset flow rate, the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are determined to be that the compressor speed is reduced by a thirty-first preset percentage and the expansion valve opening is reduced by a thirty-second preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are the compressor speed increasing by a thirty-third preset percentage, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be the expansion valve opening increasing by a thirty-fourth preset percentage; When the input control parameter and the corresponding adjustment mode and adjustment amount are a 35th preset percentage reduction in the compressor speed, determining the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount to be a 36th preset percentage reduction in the expansion valve opening; When the input control parameter and the corresponding adjustment mode and adjustment amount are that the expansion valve opening increases by a thirty-seventh preset percentage, determining that the acceleration control parameter corresponding to the input control parameter and the corresponding change mode and change amount are that the compressor speed increases by a thirty-eighth preset percentage; When the input control parameter and the corresponding adjustment method and adjustment amount are a reduction of the expansion valve opening by thirty-ninth preset percentage, the acceleration control parameter corresponding to the input control parameter and the corresponding change method and change amount are determined to be a reduction of the compressor speed by fortieth preset percentage.

7. The device according to claim 5, It is characterized in that The adjustment module comprises: a judgment submodule, for judging whether there is an identical acceleration control parameter in the determined acceleration control parameters when there is more than one input control parameter, and if so, triggering the first adjustment submodule, and if not, triggering the second adjustment submodule; The first regulating submodule is used to take the same acceleration control parameter as the target acceleration control parameter, calculate the sum of the changes corresponding to the same acceleration control parameter as the target change of the target acceleration control parameter, control the target acceleration control parameter to change from the target current value to the target mutation value in a corresponding change manner, and control the target mutation value to be restored to the target current value at the end of the preset buffer time period according to a second preset change rule, and for each acceleration control parameter other than the same acceleration control parameter, control the acceleration control parameter to change from the current value of the acceleration control parameter to the second mutation value in a corresponding change manner, and control the second mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a third preset change rule; The second regulating submodule is used to control, for each acceleration control parameter, the acceleration control parameter to change from the current value of the acceleration control parameter to a third mutation value in a corresponding change manner, and to control the third mutation value to be restored to the current value of the acceleration control parameter at the end of the preset buffer time period according to a fourth preset change rule.

8. The device according to claim 5, It is characterized in that The first preset change rule is a linear change rule, an exponential function change rule or a quadratic function change rule.

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