Temperature adjusting equipment, control method and control device thereof, electronic equipment and light heat storage flexible system

Abstract

The invention provides temperature adjusting equipment and a control method and device thereof, electronic equipment and a light heat storage flexible system. The control method comprises the steps that according to historical operation data of the energy generation unit, a target demand of the energy storage unit is determined, and the target demand is a pre-cooling demand or a preheating demand; at least according to the target demand, a target energy pre-storage mode for starting the energy storage unit is determined, the target energy pre-storage mode is a pre-cooling mode or a preheating mode, the pre-cooling mode corresponds to the pre-cooling demand, and the preheating mode corresponds to the preheating demand; and according to the target pre-energy-storage mode for starting the energy storage unit, controlling energy circulation in the energy storage unit to perform energy exchange, and performing pre-energy-storage on the energy storage unit. According to the technical scheme, the energy consumption of the energy storage unit in the cold storage mode / heat storage mode can be reduced, the electric quantity purchased from a power grid is reduced, and the cost is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of heating, ventilation and air conditioning technology, and in particular to a temperature regulation device and its control method, control device, electronic device and photovoltaic thermal storage flexible system. Background Technology

[0002] Figure 1 This is a schematic diagram of a flexible photovoltaic-thermal energy storage system, such as... Figure 1 As shown, a solar-energy storage-thermal flexible system includes a heat pump, indoor heat exchange modules (such as fan coil units or underfloor heating coils), energy storage units (such as water tanks), and photovoltaic power generation modules. The photovoltaic power generation modules may include photovoltaic (PV) panels, inverters, and in some cases, energy storage batteries and charging piles. The heat pump produces hot or cold water, the energy storage unit stores the heat or cold energy output by the heat pump, and the indoor heat exchange modules deliver heat for heating or cold for cooling. The PV panels and inverters generate and store electricity to power the heat pump or other appliances within the building. This solar-energy storage-thermal flexible system can fully utilize solar energy to meet users' electricity, heating, and cooling needs, thereby reducing energy costs.

[0003] When heating / cooling needs are met, if the photovoltaic (PV) cells generate surplus electricity, the PV-storage-thermal energy flexible system typically uses this excess electricity to drive the heat pump, storing the extra heat or cold energy in the energy storage unit. When PV power is insufficient to drive the heat pump, the system prioritizes releasing the stored heat / cold energy to meet the room's heating / cooling needs, reducing the amount of electricity purchased from the grid and thus saving on electricity bills.

[0004] During transitional seasons (such as spring or autumn), there may be both heating and cooling needs for a period of time. This requires the energy storage units in the solar thermal energy storage system to switch between heat storage and cooling modes. In existing technologies, switching between heat storage and cooling modes consumes a lot of electricity and time, and reduces indoor temperature comfort. Summary of the Invention

[0005] This disclosure provides a temperature regulation device and its control method, control apparatus, electronic device, and photovoltaic thermal storage flexible system.

[0006] According to a first aspect of this disclosure, a control method for a temperature regulating device is provided, the temperature regulating device including an energy generation unit, an energy storage unit, and an indoor heat exchange module, the method comprising:

[0007] Based on the historical operating data of the energy generation unit over a preset historical period, the target demand of the energy storage unit is determined. The target demand is either pre-cooling demand or pre-heating demand. The preset historical period is the preset period before the current time.

[0008] At least based on the target demand, determine the target pre-storage mode for activating the energy storage unit. The target pre-storage mode is either a pre-cooling mode or a pre-heating mode. The pre-cooling mode corresponds to the pre-cooling demand, and the pre-heating mode corresponds to the pre-heating demand.

[0009] Based on the target pre-storage mode of activating the energy storage unit, the energy flow in the energy storage unit is controlled to carry out energy exchange, and the energy storage unit is pre-storaged.

[0010] In some embodiments, according to the target pre-storage mode of activating the energy storage unit, controlling the energy flow in the energy storage unit for energy exchange, and pre-storage the energy storage unit includes:

[0011] Based on the activation of the pre-cooling mode and the energy storage unit's temperature being higher than the indoor temperature, the energy generation unit is controlled to operate in transmission mode, and the indoor heat exchange unit is activated. This allows energy in the energy storage unit to circulate between the energy generation unit, the energy storage unit, and the indoor heat exchange module, exchanging energy with the indoor environment and pre-cooling the energy storage unit; or...

[0012] Based on the activation of the preheating mode and the fact that the temperature of the energy storage unit is lower than the indoor temperature, the energy generation unit is controlled to operate in the transmission mode and the indoor heat exchange unit is activated, so that the energy in the energy storage unit flows between the energy generation unit, the energy storage unit and the indoor heat exchange module to exchange energy with the indoor environment and preheat the energy storage unit.

[0013] In some embodiments, a target pre-energy storage mode for activating the energy storage unit is further determined based on satisfying preset activation conditions. The preset activation conditions include a first activation condition, and the target pre-energy storage mode includes a pre-cooling mode. The first activation condition includes the energy storage unit temperature being greater than the indoor temperature, and at least one of the following:

[0014] The energy generation unit is not operating;

[0015] The temperature of the energy storage unit is higher than the first target temperature of the energy storage unit under cooling conditions;

[0016] The indoor temperature is lower than the first set temperature of the indoor environment under cooling conditions.

[0017] In some embodiments, the target pre-storage mode includes a pre-cooling mode, and the control method further includes: determining a pre-cooling mode for shutting down the energy storage unit based on a first shutdown condition, wherein the first shutdown condition includes at least one of the following:

[0018] The conditions for entering non-precooling operating conditions must be met;

[0019] The temperature drop of the energy storage unit within a first preset time period does not exceed a first preset value;

[0020] The temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions;

[0021] The temperature of the energy storage unit is less than or equal to the indoor temperature;

[0022] The indoor temperature is greater than or equal to the first set temperature of the indoor environment under cooling conditions.

[0023] In some embodiments, a target pre-energy storage mode for activating the energy storage unit is further determined based on satisfying preset activation conditions. The preset activation conditions include a second activation condition, and the target pre-energy storage mode includes a preheating mode. The second activation condition includes the energy storage unit's temperature being lower than the indoor temperature, and at least one of the following:

[0024] The energy generation unit is not operating;

[0025] The temperature of the energy storage unit is lower than the second target temperature of the energy storage unit under heating conditions;

[0026] The indoor temperature is higher than the second set temperature of the indoor environment under heating conditions.

[0027] In some embodiments, the target pre-storage mode includes a preheating mode, and the control method further includes: determining a preheating mode for shutting down the energy storage unit based on a second shutdown condition, wherein the second shutdown condition includes at least one of the following:

[0028] The conditions for entering the non-preheating operating condition must be met;

[0029] The temperature rise of the energy storage unit within a first preset time period shall not exceed a second preset value;

[0030] The temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions;

[0031] The temperature of the energy storage unit is greater than or equal to the indoor temperature;

[0032] The indoor temperature is less than or equal to the second set temperature of the indoor environment under heating conditions.

[0033] In some embodiments, the temperature control device further includes a photovoltaic power generation module, which controls the energy flow in the energy storage unit for energy exchange according to the target pre-energy storage mode of activating the energy storage unit, and performs pre-energy storage in the energy storage unit, including:

[0034] Based on the conditions that the pre-cooling mode is activated and the residual photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in cooling mode, the photovoltaic power generation module drives the energy generation unit to operate in cooling mode, allowing energy in the energy storage unit to flow between the energy generation unit and the energy storage unit for energy exchange, thus pre-cooling the energy storage unit; or...

[0035] Based on the activation of the preheating mode and the fact that the residual photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in the heating mode, the photovoltaic power generation module drives the energy generation unit to work in the heating mode, so that the energy in the energy storage unit flows between the energy generation unit and the energy storage unit for energy exchange, and preheats the energy storage unit.

[0036] In some embodiments, a target pre-energy storage mode for activating the energy storage unit is further determined based on satisfying preset activation conditions. The preset activation conditions include a third activation condition, and the target pre-energy storage mode includes a pre-cooling mode. The third activation condition includes that the surplus photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in cooling mode, and at least one of the following:

[0037] The energy generation unit is not operating;

[0038] The temperature of the energy storage unit is higher than the first target temperature of the energy storage unit under cooling conditions.

[0039] In some embodiments, the target pre-storage mode includes a pre-cooling mode, and the control method further includes: determining a pre-cooling mode for shutting down the energy storage unit based on a third shutdown condition, wherein the third shutdown condition includes at least one of the following:

[0040] The conditions for entering non-precooling operating conditions must be met;

[0041] The temperature drop of the energy storage unit within a first preset time period does not exceed a first preset value;

[0042] The temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions;

[0043] The residual photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under cooling conditions.

[0044] In some embodiments, a target pre-energy storage mode for activating the energy storage unit is further determined based on satisfying preset activation conditions. The preset activation conditions include a fourth activation condition, and the target pre-energy storage mode includes a preheating mode. The fourth activation condition includes that the surplus photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in heating mode, and at least one of the following:

[0045] The energy generation unit is not operating;

[0046] The temperature of the energy storage unit is lower than the second target temperature of the energy storage unit under heating conditions.

[0047] In some embodiments, the target pre-storage mode includes a preheating mode, and the control method further includes: determining a preheating mode for shutting down the energy storage unit based on a fourth shutdown condition, wherein the fourth shutdown condition includes at least one of the following:

[0048] The conditions for entering the non-preheating operating condition must be met;

[0049] The temperature rise of the energy storage unit within a first preset time period shall not exceed a second preset value;

[0050] The temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions;

[0051] The residual photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit in heating mode.

[0052] In some embodiments, the step of determining a target pre-storage mode for shutting down the energy storage unit is performed periodically.

[0053] In some embodiments, the target demand is a precooling demand, and the historical operating data of the energy generation unit meets preset demand conditions, which include at least one of the following:

[0054] The heating energy supplied by the energy generation unit during the preset historical duration must be equal to 0;

[0055] The energy generation unit has not been operating in heating mode for a preset historical period of time, and the indoor temperature is greater than or equal to the first preset indoor temperature under heating mode.

[0056] The energy generation unit has not been operating in heating mode for a preset historical period of time, and the indoor temperature is greater than or equal to the second preset indoor temperature under cooling mode.

[0057] The outdoor temperature within the preset historical time period is greater than or equal to the first preset indoor temperature under heating conditions;

[0058] The outdoor temperature within the preset historical time period is greater than or equal to the second preset indoor temperature under cooling conditions;

[0059] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is greater than or equal to the first preset indoor temperature under heating conditions.

[0060] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is greater than or equal to the second preset indoor temperature under cooling conditions.

[0061] In some embodiments, the target demand is a preheating demand, and the historical operating data of the energy generation unit meets preset demand conditions, which include at least one of the following:

[0062] The cooling energy supplied by the energy generation unit during the preset historical duration must be equal to 0;

[0063] The energy generation unit has not been operating in cooling mode for a preset historical period of time, and the indoor temperature is less than or equal to the first preset indoor temperature in heating mode;

[0064] The energy generation unit has not been operating in cooling mode for a preset historical period of time, and the indoor temperature is less than or equal to the second preset indoor temperature under cooling mode;

[0065] The outdoor temperature is less than or equal to the first preset indoor temperature under heating conditions within a preset historical period.

[0066] The outdoor temperature within the preset historical time period is less than or equal to the second preset indoor temperature under cooling conditions;

[0067] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the first preset indoor temperature under heating conditions.

[0068] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the second preset indoor temperature under cooling conditions.

[0069] In some embodiments, the step of determining the target demand for energy storage units is performed periodically.

[0070] In some embodiments, the preset historical duration is 48 to 96 consecutive hours prior to the current time.

[0071] According to a second aspect of this disclosure, a control device for a temperature regulating device is provided, the temperature regulating device including an energy generation unit, an energy storage unit, and an indoor heat exchange module;

[0072] The control device is configured to implement the control method in any embodiment of the present disclosure.

[0073] According to a third aspect of this disclosure, an electronic device is provided comprising:

[0074] At least one processor; and

[0075] A memory that is communicatively connected to at least one processor; wherein,

[0076] The memory stores instructions that can be executed by at least one processor to enable the at least one processor to perform the control method in any embodiment of this disclosure.

[0077] According to a fourth aspect of this disclosure, a temperature regulating device is provided, including an energy generating unit, an energy storage unit, and an indoor heat exchange module, wherein the energy generating unit is connected to the energy storage unit, and the energy storage unit is connected to the indoor heat exchange module.

[0078] The temperature control device also includes the control device or electronic device disclosed herein.

[0079] According to a fifth aspect of this disclosure, a photovoltaic-thermal energy storage flexible system is provided, including a temperature regulation device according to an embodiment of this disclosure, and a photovoltaic power generation module connected to an energy generation unit in the temperature regulation device.

[0080] The technical solution of this disclosure determines whether the energy storage unit has a pre-cooling or pre-heating requirement based on historical operating data of the energy generation unit over a preset historical period. Once a pre-cooling / pre-heating requirement is determined, a pre-cooling / pre-heating mode is activated. Based on the activation of the pre-cooling / pre-heating mode, energy flow within the energy storage unit is controlled for energy exchange, thus achieving pre-cooling / pre-heating of the energy storage unit. For example, before the energy storage unit enters a cold storage / heat storage mode, the solution of this disclosure can be used to pre-cool / pre-heat the energy storage unit, lowering / raising its temperature in advance. This reduces energy consumption in the cold storage / heat storage mode and during the switching process, reducing the power consumption of the energy generation unit, thereby reducing the amount of electricity purchased from the grid, avoiding power waste, and lowering costs. Furthermore, by pre-cooling / pre-heating the energy storage unit, the indoor temperature can be improved in advance, reducing the impact of the cold storage / heat storage mode on indoor temperature comfort. Therefore, the technical solution disclosed herein can reduce the energy consumption of the energy storage unit in cold storage mode / heat storage mode by pre-cooling / preheating the energy storage unit, and can also reduce the energy consumption of the energy storage unit during the switching process of cold storage mode / heat storage mode, thereby reducing the amount of electricity purchased from the grid, avoiding electricity waste, reducing costs, and reducing the impact on indoor temperature comfort.

[0081] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0082] The accompanying drawings are provided to better understand this solution and do not constitute a limitation of this disclosure. Wherein:

[0083] Figure 1 This is a schematic diagram of a flexible photovoltaic thermal storage system.

[0084] Figure 2 This is a schematic diagram of a control method for a temperature regulating device according to an embodiment of the present disclosure;

[0085] Figure 3 This is a schematic diagram illustrating the conversion between an energy storage unit with no pre-cooling requirement and an energy storage unit with pre-cooling requirement in one embodiment;

[0086] Figure 4 This is a schematic diagram illustrating the conversion between an energy storage unit with no preheating requirement and an energy storage unit with preheating requirement in one embodiment.

[0087] Figure 5 This is a schematic diagram illustrating the switching between precooling mode off and precooling mode on in one embodiment of the energy storage unit.

[0088] Figure 6 This is a schematic diagram illustrating the switching between preheating mode off and preheating mode on in one embodiment of the energy storage unit;

[0089] Figure 7 This is a schematic diagram illustrating the switching between precooling mode off and precooling mode on in another embodiment of the energy storage unit;

[0090] Figure 8 This is a schematic diagram illustrating the switching between preheating mode off and preheating mode on in another embodiment of the energy storage unit. Detailed Implementation

[0091] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0092] In a solar-thermal energy storage system, the temperature of the energy storage unit after charging may exceed 80°C under heating conditions, while under cooling conditions, the temperature may be less than 5°C. Typically, the energy storage unit's mode (heat storage or cooling) is determined by the real-time operating status of the heat pump. For example, when the heat pump operates in heating mode, the energy storage unit is in heat storage mode with a higher set temperature, such as 80°C; when the heat pump operates in cooling mode, the energy storage unit switches to cooling storage mode with a lower set temperature, such as 5°C. Furthermore, the set temperature of the energy storage unit remains constant in both heat storage and cooling storage modes.

[0093] During transitional seasons, such as spring or autumn, there may be both heating and cooling needs for a period of time, requiring energy storage units to switch between heat storage and cooling modes. For example, on the first day, the weather is cold, and the heat pump operates in heating mode, raising the temperature of the energy storage unit to 80°C. Then, the temperature rises, and by the third day, it is hot enough to trigger cooling mode. According to the heat pump control methods in relevant technologies, the heat pump first needs to spend some time lowering the temperature of the energy storage unit from 80°C to below room temperature (e.g., 30°C) before it can cool the room. The process of lowering the temperature of the energy storage unit from 80°C to below 30°C consumes a large amount of electricity, takes a long time, and affects indoor temperature comfort.

[0094] It should be noted that in this disclosure, indoor temperature refers to the temperature of the indoor environment, and outdoor temperature refers to the temperature of the outdoor environment.

[0095] To address some problems in related technologies, this disclosure provides a control method for a temperature regulating device.

[0096] Figure 2 This is a schematic diagram of a control method for a temperature regulating device according to an embodiment of the present disclosure. The temperature regulating device includes an energy generating unit, an energy storage unit, and an indoor heat exchange module. The energy generating unit can generate heat energy or cold energy. For example, the energy generating unit may include an energy pump (e.g., a heat pump), which can generate hot water or cold water. The energy generating unit is connected to the energy storage unit, which stores the heat energy or cold energy delivered by the energy generating unit. The energy storage unit may include a water tank, which can store the hot water or cold water delivered by the energy pump. The indoor heat exchange module may include a fan coil unit or a floor heating coil, and is connected to the energy storage unit. The energy storage unit can deliver heat energy or cold energy to the indoor heat exchange module, supplying heat energy for heating or cold energy for cooling, thereby regulating the indoor temperature. The control method of the present disclosure includes steps S11 to S13.

[0097] In step S11, the target demand of the energy storage unit is determined based on the historical operating data of the energy generation unit over a preset historical period. The target demand is either pre-cooling demand or pre-heating demand, and the preset historical period is the preset period before the current time.

[0098] The preset historical duration is a preset duration between the current time and the specified duration, which can be set according to actual needs. For example, the preset historical duration is 48-96 consecutive hours before the current time. In one embodiment, the preset historical duration is 72 consecutive hours before the current time.

[0099] Historical operating data refers to the operational data of the energy generation unit within a preset historical period. This data characterizes the relevant operational data of the energy generation unit over that period. For example, historical operating data may include the energy pump's capacity output (e.g., cooling capacity, heating capacity), operating mode, operating duration, outdoor temperature, outdoor unit radiator inlet temperature, indoor temperature, first preset indoor temperature under heating mode, and second preset indoor temperature under cooling mode. The operating mode may include either cooling or heating mode. By using the energy pump's historical operating data to determine if preset demand conditions are met, it can be determined whether the energy storage unit has a pre-cooling or pre-heating requirement.

[0100] In step S12, at least according to the target demand, the target pre-storage mode for activating the energy storage unit is determined. The target pre-storage mode is either a pre-cooling mode or a pre-heating mode. The pre-cooling mode corresponds to the pre-cooling demand, and the pre-heating mode corresponds to the pre-heating demand.

[0101] When the target demand of the energy storage unit is pre-cooling demand, the target pre-storage mode is pre-cooling mode; when the target demand of the energy storage unit is pre-heating demand, the target pre-storage mode is pre-heating mode.

[0102] For example, the target pre-storage mode for activating the energy storage unit is determined based on the target demand and the fulfillment of preset activation conditions. The pre-cooling mode for activating the energy storage unit is determined based on the pre-cooling demand and the fulfillment of corresponding preset activation conditions; the pre-heating mode for activating the energy storage unit is determined based on the pre-heating demand and the fulfillment of corresponding preset activation conditions. The preset activation conditions for the pre-cooling mode and the preset activation conditions for the pre-heating mode may be different.

[0103] In step S13, according to the target pre-energy storage mode of activating the energy storage unit, the energy flow in the energy storage unit is controlled to carry out energy exchange, and the energy storage unit is pre-stored.

[0104] Once the target pre-storage mode is activated, the energy flow in the energy storage unit is controlled to exchange energy, thereby pre-cooling or preheating the energy storage unit.

[0105] The technical solution of this disclosure determines whether the energy storage unit has a pre-cooling or pre-heating requirement based on historical operating data. After determining that the energy storage unit has a pre-cooling / pre-heating requirement, it determines to activate the pre-cooling / pre-heating mode. Based on activating the pre-cooling / pre-heating mode, it controls the energy flow in the energy storage unit to perform energy exchange, thereby achieving pre-cooling / pre-heating of the energy storage unit. For example, before the energy storage unit enters the cold storage mode / heat storage mode, the solution of this disclosure can be used to pre-cool / pre-heat the energy storage unit, thereby lowering / raising the temperature of the energy storage unit in advance. This can reduce the energy consumption of the energy storage unit in the cold storage mode / heat storage mode, reduce the power consumption of the energy generating unit, thereby reducing the amount of electricity purchased from the grid, avoiding power waste, reducing costs, and by pre-cooling / pre-heating the energy storage unit, the indoor temperature can be improved in advance, reducing the impact of the cold storage mode / heat storage mode on indoor temperature comfort.

[0106] Therefore, the technical solution disclosed herein can reduce the energy consumption of the energy storage unit in cold storage mode / heat storage mode by pre-cooling / preheating the energy storage unit, and can also reduce the energy consumption of the energy storage unit during the switching process of cold storage mode / heat storage mode, thereby reducing the amount of electricity purchased from the grid, avoiding electricity waste, reducing costs, and reducing the impact on indoor temperature comfort.

[0107] It should be noted that the switching between cold storage mode and heat storage mode does not mean that the interval between the two modes is 0. The switching between cold storage mode and heat storage mode should be understood as that there can be an interval between the two modes. When the heat storage mode is turned off, it will switch to the cold storage mode after a certain interval; or, when the cold storage mode is turned off, it will switch to the heat storage mode after a certain interval.

[0108] In one embodiment, the target demand is pre-cooling demand, and the historical operating data of the energy generation unit meets preset demand conditions. The preset demand conditions include at least one of the following: the heating energy supplied by the energy generation unit during the preset historical period must be equal to 0; the energy generation unit has not been operating in heating mode during the preset historical period, and the indoor temperature is greater than or equal to a first preset indoor temperature under heating mode; the energy generation unit has not been operating in heating mode during the preset historical period, and the indoor temperature is greater than or equal to a second preset indoor temperature under cooling mode; the outdoor temperature during the preset historical period is greater than or equal to the first preset indoor temperature under heating mode; the outdoor temperature during the preset historical period is greater than or equal to the second preset indoor temperature under cooling mode; the air inlet temperature of the outdoor unit radiator of the energy generation unit during the preset historical period is greater than or equal to the first preset indoor temperature under heating mode; and the air inlet temperature of the outdoor unit radiator of the energy generation unit during the preset historical period is greater than or equal to the second preset indoor temperature under cooling mode.

[0109] In one embodiment, the energy storage unit is determined to have a pre-cooling requirement based on historical operating data of the energy generation unit meeting a first demand condition. The first demand condition includes: the heating energy supplied by the energy generation unit for a preset historical duration must be equal to 0.

[0110] If the historical operating data of the energy generation unit does not meet the first requirement condition, determine whether the historical operating data meets the second requirement condition; if the historical operating data meets the second requirement condition, determine that the energy storage unit has a pre-cooling requirement based on the fact that the historical operating data of the energy generation unit meets the second requirement condition.

[0111] The second requirement includes at least one of the following: the energy generating unit has not been operating in heating mode for a preset historical period, and the indoor temperature is greater than or equal to the first preset indoor temperature under heating mode; the energy generating unit has not been operating in heating mode for a preset historical period, and the indoor temperature is greater than or equal to the second preset indoor temperature under cooling mode; the outdoor temperature is greater than or equal to the first preset indoor temperature under heating mode within the preset historical period; the outdoor temperature is greater than or equal to the second preset indoor temperature under cooling mode within the preset historical period; the air inlet temperature of the outdoor unit radiator of the energy generating unit is greater than or equal to the first preset indoor temperature under heating mode within the preset historical period; the air inlet temperature of the outdoor unit radiator of the energy generating unit is greater than or equal to the second preset indoor temperature under cooling mode within the preset historical period.

[0112] For example, the energy generation unit's heat supply must be zero for a preset historical period, indicating that the energy generation unit has not provided heat to the energy storage unit during the preset historical period. In other words, the energy generation unit's heat supply is zero during the preset historical period, thus allowing prediction that the energy storage unit has a pre-cooling requirement. The preset historical period can be 72 hours, or other durations.

[0113] In this disclosure, Tbt represents the energy storage unit temperature, Tbtsc represents the first target temperature of the energy storage unit under cooling conditions, and Tbtsh represents the second target temperature of the energy storage unit under heating conditions; Ta represents the indoor temperature, Tasc represents the second preset indoor temperature under cooling conditions, and Tash represents the first preset indoor temperature under heating conditions. To prevent the energy storage unit from entering the pre-cooling / pre-heating mode too early or too late, a first hysteresis temperature ΔT1 can be set for the indoor temperature, and a second hysteresis temperature ΔT2 can be set for the preset indoor temperature.

[0114] For example, if the energy generation unit has not been operating in heating mode for a preset historical period of time, and the indoor temperature is greater than or equal to the first preset indoor temperature under heating mode, i.e., Ta≥Tash+ΔT2, this indicates that the indoor temperature is too high. Therefore, if this condition is met, it can be determined that the energy storage unit meets the pre-cooling requirements.

[0115] For example, if the energy generation unit has not been operating in heating mode for a preset historical period of time, and the indoor temperature is greater than or equal to the second preset indoor temperature under cooling mode, i.e., Ta≥Tasc-ΔT2, this indicates that the indoor temperature is too high. Therefore, if this condition is met, it can be determined that the energy storage unit meets the pre-cooling requirements.

[0116] For example, if the outdoor temperature within a preset historical period is greater than or equal to the first preset indoor temperature under heating conditions, that is, the outdoor temperature is ≥ Tash + ΔT2, this indicates that the outdoor temperature is high. Therefore, if this condition is met, it can be determined that the energy storage unit has a pre-cooling requirement.

[0117] According to the outdoor temperature being greater than or equal to the second preset indoor temperature under cooling conditions within a preset historical period, that is, the outdoor temperature is ≥Tasc-ΔT2, which indicates that the outdoor temperature is relatively high. Therefore, under this condition, it can be determined that the energy storage unit has a pre-cooling requirement.

[0118] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is greater than or equal to the first preset indoor temperature under heating conditions. In other words, the air inlet temperature of the outdoor unit radiator of the energy generation unit is ≥ Tash + ΔT2. This indicates that the outdoor temperature is relatively high. Therefore, if this condition is met, it can be determined that the energy storage unit has a pre-cooling requirement.

[0119] According to the preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is greater than or equal to the second preset indoor temperature under the cooling condition. In other words, the air inlet temperature of the outdoor unit radiator of the energy generation unit is ≥Tasc-ΔT2. This indicates that the outdoor temperature is relatively high. Therefore, under this condition, it can be determined that the energy storage unit has a pre-cooling requirement.

[0120] Figure 3 This is a schematic diagram illustrating the conversion between an energy storage unit with no pre-cooling requirement and an energy storage unit with pre-cooling requirement in one embodiment. For example... Figure 3 As shown, when the energy demand of the energy generation unit for the preset historical duration is 0, the energy storage unit has a pre-cooling requirement; when the energy demand of the energy generation unit for the preset historical duration is greater than 0, the energy storage unit has no pre-cooling requirement. It can be understood that for the conditions listed above that determine whether an energy storage unit has a pre-cooling requirement, if these conditions are not met, the energy storage unit has no pre-cooling requirement.

[0121] In one embodiment, the target demand is preheating demand, and the historical operating data of the energy generation unit meets preset demand conditions. The preset demand conditions include at least one of the following: the cooling energy supplied by the energy generation unit for a preset historical period must be equal to 0; the energy generation unit has not been operating in cooling mode for a preset historical period, and the indoor temperature is less than or equal to a first preset indoor temperature under heating mode; the energy generation unit has not been operating in cooling mode for a preset historical period, and the indoor temperature is less than or equal to a second preset indoor temperature under cooling mode; the outdoor temperature is less than or equal to the first preset indoor temperature under heating mode within the preset historical period; the outdoor temperature is less than or equal to the second preset indoor temperature under cooling mode within the preset historical period; the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the first preset indoor temperature under heating mode within the preset historical period; and the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the second preset indoor temperature under cooling mode within the preset historical period.

[0122] In one embodiment, the energy storage unit is determined to have a preheating requirement based on historical operating data of the energy generation unit meeting a third demand condition. The third demand condition includes: the cooling energy supplied by the energy generation unit for a preset historical duration must be equal to 0.

[0123] If the historical operating data of the energy generation unit does not meet the third requirement, determine whether the historical operating data meets the fourth requirement; if the historical operating data meets the fourth requirement, determine that the energy storage unit has a preheating requirement based on the fact that the historical operating data of the energy generation unit meets the fourth requirement.

[0124] The fourth requirement includes at least one of the following: the energy generating unit has not been operating in cooling mode for a preset historical period, and the indoor temperature is less than or equal to the first preset indoor temperature under heating mode; the energy generating unit has not been operating in cooling mode for a preset historical period, and the indoor temperature is less than or equal to the second preset indoor temperature under cooling mode; the outdoor temperature is less than or equal to the first preset indoor temperature under heating mode within the preset historical period; the outdoor temperature is less than or equal to the second preset indoor temperature under cooling mode within the preset historical period; the air inlet temperature of the outdoor unit radiator of the energy generating unit is less than or equal to the first preset indoor temperature under heating mode within the preset historical period; and the air inlet temperature of the outdoor unit radiator of the energy generating unit is less than or equal to the second preset indoor temperature under cooling mode within the preset historical period.

[0125] For example, the cooling energy supplied by the energy generation unit for a preset historical period must be equal to 0, indicating that the energy generation unit has not provided cooling to the energy storage unit for the preset historical period. In other words, the cooling capacity supplied by the energy generation unit for the preset historical period is 0, thereby predicting that the energy storage unit has a preheating requirement. The preset historical period can be 72 hours, or other durations.

[0126] For example, if the energy generation unit has not been operating in cooling mode for a preset historical period of time, and the indoor temperature is less than or equal to the first preset indoor temperature under heating mode, i.e., Ta≤Tash+ΔT2, this indicates that the indoor temperature is too low. Therefore, if this condition is met, it can be determined that the energy storage unit meets the preheating requirements.

[0127] For example, if the energy generation unit has not been operating in cooling mode for a preset historical period of time, and the indoor temperature is less than or equal to the second preset indoor temperature under cooling mode, i.e., Ta≤Tasc-ΔT2, this indicates that the indoor temperature is too low. Therefore, if this condition is met, it can be determined that the energy storage unit meets the preheating requirements.

[0128] For example, if the outdoor temperature is less than or equal to the first indoor preset temperature under heating conditions within a preset historical period, that is, the outdoor temperature is ≤ Tash + ΔT2, this indicates that the outdoor temperature is low. Therefore, if this condition is met, it can be determined that the energy storage unit has a preheating requirement.

[0129] If the outdoor temperature is less than or equal to the second preset indoor temperature under cooling conditions within the preset historical time period, that is, the outdoor temperature is ≤Tasc-ΔT2, this indicates that the outdoor temperature is low. Therefore, if this condition is met, it can be determined that the energy storage unit has a preheating requirement.

[0130] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the first preset indoor temperature under heating conditions. In other words, the air inlet temperature of the outdoor unit radiator of the energy generation unit is ≤ Tash + ΔT2. This indicates that the outdoor temperature is low. Therefore, if this condition is met, it can be determined that the energy storage unit has a preheating requirement.

[0131] Within a preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the second preset indoor temperature under cooling conditions. In other words, the air inlet temperature of the outdoor unit radiator of the energy generation unit is ≤Tasc-ΔT2. This indicates that the outdoor temperature is low. Therefore, under this condition, it can be determined that the energy storage unit has a preheating requirement.

[0132] Figure 4 This is a schematic diagram illustrating the conversion between an energy storage unit with no preheating requirement and an energy storage unit with preheating requirement in one embodiment. For example... Figure 4 As shown, when the cooling energy demand of the energy generation unit for the preset historical duration is 0, the energy storage unit has a preheating requirement; when the cooling energy demand of the energy generation unit for the preset historical duration is >0, the energy storage unit has no preheating requirement. It can be understood that for the conditions listed above that determine the energy storage unit has a preheating requirement, if these conditions are not met, the energy storage unit has no preheating requirement.

[0133] For example, the step of determining the target demand for the energy storage unit can be performed periodically. For instance, it can be determined at preset intervals whether there is a pre-cooling / preheating demand.

[0134] In one embodiment, step S13, controlling the energy flow in the energy storage unit to perform energy exchange according to the target pre-energy storage mode of activating the energy storage unit, and pre-storing the energy storage unit, includes: controlling the energy generation unit to operate in the transmission condition and activating the indoor heat exchange unit according to the activation of the pre-cooling mode and the temperature of the energy storage unit being greater than the indoor temperature, so that the energy in the energy storage unit flows between the energy generation unit, the energy storage unit and the indoor heat exchange module to perform energy exchange with the indoor environment, and pre-cooling the energy storage unit.

[0135] For example, an electronic valve can be installed between the indoor heat exchange module and the energy storage unit. Activating the indoor heat exchange unit can be understood as activating the electronic valve between the indoor heat exchange module and the energy storage unit, allowing energy in the energy storage unit to flow between them. Based on activating the pre-cooling mode and ensuring the energy storage unit's temperature is higher than the indoor temperature, the energy generation unit, such as an energy pump, can be controlled to operate in delivery mode, and the electronic valve between the indoor heat exchange module and the energy storage unit can be activated.

[0136] It should be noted that when the energy generation unit operates in the conveying condition, it only conveys liquid and does not have the effect of refrigeration or heating; when the energy generation unit operates in the refrigeration condition, it can not only convey liquid but also has the refrigeration effect; when the energy generation unit operates in the heating condition, it can not only convey liquid but also has the heating effect.

[0137] Through the operation of the energy pump, the energy in the energy storage unit circulates among the energy generation unit, the energy storage unit and the indoor heat exchange module. Since the temperature of the energy storage unit is higher than the indoor temperature, when the liquid in the energy storage unit circulates among the energy generation unit, the energy storage unit and the indoor heat exchange module, the liquid in the energy storage unit can exchange energy with the indoor environment, and the excess heat in the energy storage unit is released into the room, achieving precooling of the energy storage unit.

[0138] In this way, by utilizing the temperature difference between the energy storage unit and the indoor environment to achieve precooling of the energy storage unit, the power consumption of the energy generation unit can be further reduced.

[0139] In one embodiment, the target pre - energy - storage mode may include a precooling mode. The preset opening condition may include a first opening condition, and the first opening condition includes that the temperature of the energy storage unit is higher than the indoor temperature, that is, Tbt > Ta+ΔT1.

[0140] The first opening condition may also include at least one of the following: the energy generation unit is not operating; the temperature of the energy storage unit is higher than the first target temperature of the energy storage unit under the refrigeration condition; the indoor temperature is lower than the first set temperature of the indoor environment under the refrigeration condition.

[0141] The energy generation unit is not operating, that is to say, the energy generation unit is in the shutdown state.

[0142] The temperature of the energy storage unit is higher than the first target temperature of the energy storage unit under the refrigeration condition, that is, Tbt > Tbtsc.

[0143] The indoor temperature is lower than the first set temperature of the indoor environment under the refrigeration condition, that is, Ta < Tasc.

[0144] Figure 5 It is a schematic diagram of the conversion between the off - state and the on - state of the precooling mode of the energy storage unit in one embodiment. In Figure 5 In the illustrated embodiment, when the conditions that the energy pump is not operating, the energy storage unit has a precooling requirement, Tbt > Tbtsc, Tbt > Ta+ΔT1, and Ta < Tasc are simultaneously satisfied, the precooling mode of the energy storage unit is开启.

[0145] In one embodiment, the target pre-storage mode includes a pre-cooling mode, and the control method may further include: determining to shut down the pre-cooling mode of the energy storage unit based on satisfying a first shutdown condition. The first shutdown condition includes at least one of the following: satisfying the condition for entering a non-pre-cooling operating condition; the temperature drop of the energy storage unit within a first preset time period does not exceed a first preset value; the temperature of the energy storage unit is less than or equal to a first target temperature of the energy storage unit under cooling conditions; the temperature of the energy storage unit is less than or equal to the indoor temperature; and the indoor temperature is greater than or equal to a first set temperature of the indoor environment under cooling conditions.

[0146] For example, once the conditions for entering a non-precooling operating condition are met, precooling is no longer suitable. In this case, it can be determined to shut down the precooling mode of the energy storage unit. That is, when the precooling conditions are no longer met, the precooling mode of the energy storage unit is shut down. Non-precooling operating conditions may include preheating conditions, transmission conditions, and shutdown of the energy generation unit, etc.

[0147] For example, when the temperature drop of the energy storage unit within a first preset time period does not exceed a first preset value (e.g., 1°C), this indicates that the temperature of the energy storage unit is essentially the same as the indoor temperature, and energy exchange has ceased. Therefore, the pre-cooling mode of the energy storage unit can be turned off. The specific value of the first preset value can be set as needed. This situation indicates that the temperature of the energy storage unit is already the same as the indoor temperature, and the energy storage unit will no longer exchange energy with the indoor environment. Therefore, the pre-cooling mode can be turned off. The specific value of the first preset time period can be set as needed; for example, the first preset time period can be 30 minutes.

[0148] For example, if the temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions, that is, Tbt≤Tbtsc, then the temperature of the cold storage mode has been reached, and it can be determined to turn off the pre-cooling mode of the energy storage unit.

[0149] For example, if the temperature of the energy storage unit is less than or equal to the indoor temperature, i.e., Tbt≤Ta, then it is no longer possible to reduce the temperature of the energy storage unit by exchanging heat with the indoor environment, and the pre-cooling mode of the energy storage unit can be turned off.

[0150] If the indoor temperature is greater than or equal to the first set temperature of the indoor environment under cooling conditions, that is, Ta≥Tasc, then the indoor temperature is too high and the temperature of the energy storage unit cannot be reduced through energy exchange. Therefore, the pre-cooling mode of the energy storage unit can be turned off.

[0151] exist Figure 5In the embodiment shown, the energy storage unit precooling mode is turned off when any one of the following conditions is met: the temperature drop of Tbt within a first preset time does not exceed a first preset value, Tbt≤Tbtsc, Tbt≤Ta, or Ta≥Tasc is met.

[0152] In one embodiment, step S13, controlling the energy flow in the energy storage unit to perform energy exchange according to the target pre-energy storage mode of activating the energy storage unit, and pre-storing the energy storage unit, includes: controlling the energy generation unit to operate in the transmission mode and activating the indoor heat exchange unit according to the activation of the preheating mode and the temperature of the energy storage unit being lower than the indoor temperature, so that the energy in the energy storage unit flows between the energy generation unit, the energy storage unit and the indoor heat exchange module to perform energy exchange with the indoor environment, and preheating the energy storage unit.

[0153] For example, based on activating the preheating mode and ensuring the energy storage unit's temperature is lower than the indoor temperature, the energy generation unit, such as the energy pump, can be controlled to operate in delivery mode, and the electronic valve between the indoor heat exchange module and the energy storage unit can be opened. In this case, the energy pump operates in delivery mode, not in cooling or heating mode; the energy pump only has the function of liquid transfer. Through the operation of the energy pump, energy in the energy storage unit flows between the energy generation unit, the energy storage unit, and the indoor heat exchange module. Since the energy storage unit's temperature is lower than the indoor temperature, when the liquid in the energy storage unit flows between the energy generation unit, the energy storage unit, and the indoor heat exchange module, the liquid in the energy storage unit can exchange energy with the indoor environment. Excess cooling energy in the energy storage unit is released into the room, and heat is absorbed from the room, thus achieving preheating of the energy storage unit.

[0154] In this method, the temperature difference between the energy storage unit and the indoor environment is used to preheat the energy storage unit, which can further reduce the power consumption of the energy generation unit and reduce the impact on indoor temperature comfort.

[0155] In one embodiment, the target pre-storage mode may include a preheating mode. The preset activation condition may include a second activation condition, which includes the energy storage unit's temperature being lower than the indoor temperature, i.e., Tbt <Ta-ΔT1。

[0156] The second activation condition also includes at least one of the following: the energy generation unit is not operating; the temperature of the energy storage unit is lower than the second target temperature of the energy storage unit under heating conditions; the indoor temperature is higher than the second set temperature of the indoor environment under heating conditions.

[0157] The energy generation unit is not running, meaning it is in a shutdown state.

[0158] The energy storage unit temperature is lower than the second target temperature of the energy storage unit under heating conditions, that is, Tbt <Tbtsh。

[0159] The indoor temperature is greater than the second set temperature of the indoor environment under heating conditions, that is, Ta>Tash.

[0160] Figure 6 This is a schematic diagram illustrating the switching between preheating mode off and preheating mode on for an energy storage unit in one embodiment. Figure 6 In the illustrated embodiment, when the following conditions are simultaneously met: the energy pump is not running, the energy storage unit has a preheating requirement, and Tbt... <Tbtsh、Tbt<Ta-ΔT1、Ta> When the Tash condition is met, the energy storage unit preheating mode is activated.

[0161] In one embodiment, the target pre-storage mode includes a preheating mode, and the control method further includes: determining to shut down the preheating mode of the energy storage unit based on satisfying a second shutdown condition, wherein the second shutdown condition includes at least one of the following: satisfying the condition for entering a non-preheating operating condition; the temperature rise of the energy storage unit within a first preset time period does not exceed a second preset value; the temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions; the temperature of the energy storage unit is greater than or equal to the indoor temperature; and the indoor temperature is less than or equal to the second set temperature of the indoor environment under heating conditions.

[0162] For example, if the conditions for entering a non-preheating operating condition are met, the preheating mode of the energy storage unit is determined to be shut down. That is, if the preheating conditions are no longer met, the preheating mode of the energy storage unit is shut down. Non-preheating operating conditions may include precooling operating conditions, transmission operating conditions, shutdown of energy generation units, etc.

[0163] For example, if the temperature rise of the energy storage unit within a first preset time period does not exceed a second preset value, such as 1°C, this indicates that the temperature of the energy storage unit is essentially the same as the indoor temperature, and energy exchange has ceased. Therefore, the preheating mode of the energy storage unit can be turned off. The specific value of the second preset value can be set as needed. In another scenario, the temperature of the energy storage unit is already the same as the indoor temperature, and the energy storage unit will no longer exchange energy with the indoor environment; therefore, the preheating mode can be turned off. The specific value of the second preset time period can be set as needed; for example, the second preset time period can be 30 minutes.

[0164] For example, if the temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions, that is, Tbt≥Tbtsh, then the temperature of the heat storage mode has been reached, and it can be determined to turn off the preheating mode of the energy storage unit.

[0165] For example, if the temperature of the energy storage unit is greater than or equal to the indoor temperature, i.e., Tbt≥Ta, then it is no longer possible to raise the temperature of the energy storage unit by exchanging heat with the indoor environment, and the preheating mode of the energy storage unit can be turned off.

[0166] For example, if the indoor temperature is less than or equal to the second set temperature of the indoor environment under heating conditions, i.e., Ta≤Tash, then the indoor temperature is too low to raise the temperature of the energy storage unit through energy exchange, and the pre-cooling mode of the energy storage unit can be turned off.

[0167] exist Figure 6 In the embodiment shown, the energy storage unit preheating mode is turned off when any one of the following conditions is met: the temperature rise of Tbt within the first preset time does not exceed the second preset value, Tbt≥Tbtsh, Tbt≥Ta, or Ta≤Tash is met.

[0168] In one embodiment, step S13, the temperature regulation device further includes a photovoltaic power generation module, which controls the energy flow in the energy storage unit to perform energy exchange according to the target pre-energy storage mode of the energy storage unit, and performs pre-energy storage on the energy storage unit. This includes: according to the pre-cooling mode being activated and the photovoltaic surplus power of the photovoltaic power generation module being greater than or equal to the minimum power of the energy generation unit in the cooling mode, the photovoltaic power generation module drives the energy generation unit to operate in the cooling mode, so that the energy in the energy storage unit flows between the energy generation unit and the energy storage unit to perform energy exchange, thereby pre-cooling the energy storage unit; or, according to the pre-heating mode being activated and the photovoltaic surplus power of the photovoltaic power generation module being greater than or equal to the minimum power of the energy generation unit in the heating mode, the photovoltaic power generation module drives the energy generation unit to operate in the heating mode, so that the energy in the energy storage unit flows between the energy generation unit and the energy storage unit to perform energy exchange, thereby pre-heating the energy storage unit.

[0169] It can control the energy generation unit to operate in cooling / heating mode, so that the energy in the energy storage unit can flow between the energy generation unit and the energy storage unit for energy exchange, thereby realizing the pre-cooling / preheating of the energy storage unit.

[0170] In this embodiment, the energy storage unit is pre-cooled / preheated using an energy pump and surplus photovoltaic power. When the energy storage unit requires pre-cooling, if the surplus photovoltaic power is sufficient to drive the energy pump for cooling, and the energy pump is in a powered-off state, the surplus photovoltaic power can be used to drive the energy pump in cooling mode to cool the energy storage unit until the energy storage unit temperature reaches the target value or the surplus photovoltaic power is insufficient. When the energy storage unit requires preheating, if the surplus photovoltaic power is sufficient to drive the energy pump for heating, and the energy pump is in a powered-off state, the surplus photovoltaic power can be used to drive the energy pump in heating mode to heat the energy storage unit until the energy storage unit temperature reaches the target value or the surplus photovoltaic power is insufficient.

[0171] In this way, when the surplus photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in cooling / heating mode, the surplus power of the photovoltaic power generation module drives the energy generation unit to work in cooling / heating mode, eliminating the need to purchase electricity from the grid and reducing costs.

[0172] In one embodiment, the preset activation condition includes a third activation condition, and the target pre-storage mode includes a pre-cooling mode. The third activation condition includes that the photovoltaic surplus power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in the cooling condition. That is, the photovoltaic surplus power is ≥ the minimum power of the energy generation unit in the cooling condition. In this case, the photovoltaic surplus power can be used to drive the energy pump for cooling.

[0173] The third activation condition also includes at least one of the following: the energy generation unit is not operating; the energy storage unit temperature is greater than the first target temperature of the energy storage unit under cooling conditions.

[0174] The energy generation unit is not running, meaning it is in a shutdown state.

[0175] The temperature of the energy storage unit is greater than the first target temperature of the energy storage unit under cooling conditions, that is, Tbt>Tbtsc.

[0176] Figure 7 This is a schematic diagram illustrating the switching between precooling mode off and precooling mode on in another embodiment of the energy storage unit. Figure 7 In the embodiment shown, the pre-cooling mode of the energy storage unit is activated when the following conditions are met simultaneously: the energy pump is not running, the energy storage unit has a pre-cooling requirement, Tbt > Tbtsc, and the photovoltaic surplus power is greater than or equal to the minimum power of the energy pump in cooling mode.

[0177] In one embodiment, the target pre-storage mode includes a pre-cooling mode, and the control method further includes: determining to shut down the pre-cooling mode of the energy storage unit based on satisfying a third shutdown condition, wherein the third shutdown condition includes at least one of the following: satisfying the condition for entering a non-pre-cooling condition; the temperature drop of the energy storage unit Tbt within a first preset time period does not exceed a first preset value; the temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under the cooling condition; and the surplus photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under the cooling condition.

[0178] For example, if the temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions, the pre-cooling mode of the energy storage unit is determined to be turned off, that is, Tbt≤Tbtsc.

[0179] For example, if the surplus photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit in cooling mode, the pre-cooling mode of the energy storage unit is turned off. That is, if the surplus photovoltaic power is less than the minimum power of the energy generation unit in cooling mode, the pre-cooling mode of the energy storage unit is turned off.

[0180] exist Figure 7 In the embodiment shown, the energy storage unit pre-cooling mode is turned off when any of the following conditions are met: entering non-pre-cooling mode, the temperature drop of Tbt within a first preset time does not exceed a first preset value, Tbt≤Tbtsc, and the photovoltaic surplus power is less than the minimum power of the energy pump in cooling mode.

[0181] In one embodiment, the photovoltaic surplus power can be used to drive the energy generation unit to operate in cooling / heating mode, and the energy storage unit can simultaneously exchange energy with the indoor environment to achieve pre-cooling / preheating of the energy storage unit.

[0182] The technical solution of this disclosure embodiment can periodically determine whether the energy storage unit has a pre-cooling / preheating requirement; when the energy storage unit has a pre-cooling / preheating requirement, the pre-cooling / preheating mode can be determined to be activated based on the pre-cooling / preheating requirement and the corresponding preset activation conditions; based on activating the pre-cooling / preheating mode, the energy pump is controlled to operate in the delivery mode and the indoor heat exchange module is activated, and / or the energy pump is controlled to cool / heat to adjust the temperature of the energy storage unit, thereby realizing the pre-cooling / preheating of the energy storage unit; after entering the pre-cooling / preheating mode, it can periodically determine whether the conditions for closing the pre-cooling / preheating mode are met, and when the conditions for closing the pre-cooling / preheating mode are met, the pre-cooling / preheating mode can be exited.

[0183] In one embodiment, the preset opening condition includes a fourth opening condition, the target pre - energy - storage mode includes a pre - heating mode, and the fourth opening condition includes that the photovoltaic surplus power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit under the heating condition. That is, the photovoltaic surplus power ≥ the minimum power of the energy generation unit under the heating condition. At this time, the photovoltaic surplus power can be used to drive the energy pump for heating.

[0184] The fourth opening condition further includes at least one of the following: the energy generation unit is not operating; the temperature of the energy storage unit is less than the second target temperature of the energy storage unit under the heating condition.

[0185] The temperature of the energy storage unit is less than the second target temperature of the energy storage unit under the heating condition, that is, Tbt < Tbtsh.

[0186] Figure 8 It is a schematic diagram of the conversion between the off - state and the on - state of the pre - heating mode of the energy storage unit in another embodiment. In Figure 8 In the shown embodiment, when the energy pump is not operating, the energy storage unit has a pre - heating requirement, Tbt < Tbtsh, and the photovoltaic surplus power ≥ the minimum power of the energy generation unit under the heating condition are satisfied simultaneously, the pre - heating mode of the energy storage unit is turned on.

[0187] In one embodiment, the target pre - energy - storage mode includes a pre - heating mode, and the control method further includes: determining to turn off the pre - heating mode of the energy storage unit according to the satisfaction of the fourth closing condition. The fourth closing condition includes at least one of the following: the condition for entering a non - pre - heating condition is satisfied; the temperature increase of the energy storage unit within the first preset time period does not exceed the second preset value; the temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under the heating condition; the photovoltaic surplus power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under the heating condition.

[0188] When the temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under the heating condition, that is, Tbt ≥ Tbtsh, the pre - heating mode of the energy storage unit is turned off.

[0189] When the photovoltaic surplus power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under the heating condition, that is, the photovoltaic surplus power < the minimum power of the energy generation unit under the heating condition, the pre - heating mode of the energy storage unit is turned off.

[0190] In Figure 8 In the shown embodiment, when any one of the conditions for entering a non - pre - heating condition, the temperature increase of Tbt within the first preset time period does not exceed the second preset value, Tbt ≥ Tbtsh, and the photovoltaic surplus power < the minimum power of the energy generation unit under the heating condition is satisfied, the pre - heating mode of the energy storage unit is turned off.

[0191] In one embodiment, the step of determining a target pre-storage mode for shutting down the energy storage unit can be performed periodically. For example, the step of determining a pre-cooling mode for shutting down the energy storage unit can be performed periodically; the step of determining a pre-heating mode for shutting down the energy storage unit can be performed periodically.

[0192] This disclosure also provides a control device for a temperature regulating device, which includes an energy generation unit, an energy storage unit, and an indoor heat exchange module. The control device is configured to implement the control method in any embodiment of this disclosure.

[0193] According to embodiments of this disclosure, an electronic device is also provided. The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor. The memory stores instructions executable by the at least one processor, which, when executed by the at least one processor, enable the at least one processor to perform the control method of any embodiment of this disclosure.

[0194] This disclosure also provides a temperature control device, including an energy generation unit, an energy storage unit, and an indoor heat exchange module. The energy generation unit is connected to the energy storage unit, and the energy storage unit is connected to the indoor heat exchange module. The temperature control device also includes a control device or electronic device as described in this disclosure.

[0195] This disclosure also provides a photovoltaic-thermal energy storage flexible system, including a temperature regulation device as described in this disclosure, and a photovoltaic power generation module, wherein the photovoltaic power generation module is connected to the energy generation unit in the temperature regulation device.

[0196] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0197] The program code used to implement the methods of this disclosure may be written in any combination of one or more programming languages. This program code may be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing apparatus, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may be executed entirely on a machine, partially on a machine, as a standalone software package partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0198] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0199] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0200] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0201] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0202] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A control method for a temperature regulating device, characterized in that, The temperature control device includes an energy generation unit, an energy storage unit, and an indoor heat exchange module; the method includes: Based on the historical operating data of the energy generation unit over a preset historical period, the target demand of the energy storage unit is determined. The target demand is either a pre-cooling demand or a pre-heating demand. The preset historical period is the preset period before the current time. Based at least on the target requirements, determine the target pre-storage mode for activating the energy storage unit. The target pre-storage mode is either a pre-cooling mode or a pre-heating mode. The pre-cooling mode corresponds to the pre-cooling requirement, and the pre-heating mode corresponds to the pre-heating requirement. According to the target pre-energy storage mode of activating the energy storage unit, the energy flow in the energy storage unit is controlled to carry out energy exchange, and the energy storage unit is pre-stored.

2. The control method according to claim 1, characterized in that, According to the target pre-storage mode of activating the energy storage unit, the energy flow in the energy storage unit is controlled to perform energy exchange, and the energy storage unit is pre-stored, including: Based on the activation of the pre-cooling mode and the fact that the temperature of the energy storage unit is higher than the indoor temperature, the energy generation unit is controlled to operate in the transmission mode, and the indoor heat exchange unit is activated. This allows energy in the energy storage unit to circulate between the energy generation unit, the energy storage unit, and the indoor heat exchange module, exchanging energy with the indoor environment and pre-cooling the energy storage unit; or... Based on the activation of the preheating mode and the fact that the temperature of the energy storage unit is lower than the indoor temperature, the energy generation unit is controlled to operate in the transmission mode and the indoor heat exchange unit is activated, so that the energy in the energy storage unit flows between the energy generation unit, the energy storage unit and the indoor heat exchange module to exchange energy with the indoor environment and preheat the energy storage unit.

3. The control method according to claim 2, characterized in that, Furthermore, based on meeting preset activation conditions, a target pre-energy storage mode for activating the energy storage unit is determined. The preset activation conditions include a first activation condition, and the target pre-energy storage mode includes a pre-cooling mode. The first activation condition includes the energy storage unit's temperature being greater than the room temperature, and at least one of the following: The energy generation unit is not operating; The temperature of the energy storage unit is greater than the first target temperature of the energy storage unit under cooling conditions; The indoor temperature is lower than the first set temperature of the indoor environment under cooling conditions.

4. The control method according to claim 2, characterized in that, The target pre-storage mode includes a pre-cooling mode, and the control method further includes: determining to shut down the pre-cooling mode of the energy storage unit based on satisfying a first shutdown condition, wherein the first shutdown condition includes at least one of the following: The conditions for entering non-precooling operating conditions must be met; The temperature decrease of the energy storage unit within a first preset time period shall not exceed a first preset value; The temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions; The temperature of the energy storage unit is less than or equal to the indoor temperature; The indoor temperature is greater than or equal to the first set temperature of the indoor environment under cooling conditions.

5. The control method according to claim 2, characterized in that, Furthermore, based on meeting preset activation conditions, a target pre-energy storage mode for activating the energy storage unit is determined. The preset activation conditions include a second activation condition, and the target pre-energy storage mode includes a preheating mode. The second activation condition includes the energy storage unit's temperature being lower than the room temperature, and at least one of the following: The energy generation unit is not operating; The temperature of the energy storage unit is lower than the second target temperature of the energy storage unit under heating conditions; The indoor temperature is greater than the second set temperature of the indoor environment under heating conditions.

6. The control method according to claim 2, characterized in that, The target pre-storage mode includes a preheating mode, and the control method further includes: determining to shut down the preheating mode of the energy storage unit based on a second shutdown condition, wherein the second shutdown condition includes at least one of the following: The conditions for entering the non-preheating operating condition must be met; The temperature rise of the energy storage unit within a first preset time period shall not exceed a second preset value; The temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions; The temperature of the energy storage unit is greater than or equal to the indoor temperature; The indoor temperature is less than or equal to the second set temperature of the indoor environment under heating conditions.

7. The control method according to claim 1, characterized in that, The temperature regulation device also includes a photovoltaic power generation module. The step of controlling the energy flow in the energy storage unit to perform energy exchange according to the target pre-storage mode of the energy storage unit includes: Based on the activation of the pre-cooling mode and the fact that the residual photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in cooling mode, the photovoltaic power generation module drives the energy generation unit to operate in cooling mode, allowing energy in the energy storage unit to flow between the energy generation unit and the energy storage unit for energy exchange, thereby pre-cooling the energy storage unit; or... Based on the activation of the preheating mode and the fact that the residual photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in the heating mode, the photovoltaic power generation module drives the energy generation unit to operate in the heating mode, so that the energy in the energy storage unit flows between the energy generation unit and the energy storage unit for energy exchange, thereby preheating the energy storage unit.

8. The control method according to claim 7, characterized in that, Furthermore, based on meeting preset activation conditions, a target pre-energy storage mode for activating the energy storage unit is determined. The preset activation conditions include a third activation condition, and the target pre-energy storage mode includes a pre-cooling mode. The third activation condition includes that the surplus photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in cooling mode, and at least one of the following: The energy generation unit is not operating; The temperature of the energy storage unit is greater than the first target temperature of the energy storage unit under cooling conditions.

9. The control method according to claim 7, characterized in that, The target pre-storage mode includes a pre-cooling mode, and the control method further includes: determining to shut down the pre-cooling mode of the energy storage unit based on satisfying a third shutdown condition, wherein the third shutdown condition includes at least one of the following: The conditions for entering non-precooling operating conditions must be met; The temperature decrease of the energy storage unit within a first preset time period shall not exceed a first preset value; The temperature of the energy storage unit is less than or equal to the first target temperature of the energy storage unit under cooling conditions; The residual photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under cooling conditions.

10. The control method according to claim 7, characterized in that, Furthermore, based on meeting preset activation conditions, a target pre-energy storage mode for activating the energy storage unit is determined. The preset activation conditions include a fourth activation condition, and the target pre-energy storage mode includes a preheating mode. The fourth activation condition includes that the surplus photovoltaic power of the photovoltaic power generation module is greater than or equal to the minimum power of the energy generation unit in heating mode, and at least one of the following: The energy generation unit is not operating; The temperature of the energy storage unit is lower than the second target temperature of the energy storage unit under heating conditions.

11. The control method according to claim 7, characterized in that, The target pre-storage mode includes a preheating mode, and the control method further includes: determining to shut down the preheating mode of the energy storage unit based on satisfying a fourth shutdown condition, wherein the fourth shutdown condition includes at least one of the following: The conditions for entering the non-preheating operating condition must be met; The temperature rise of the energy storage unit within a first preset time period shall not exceed a second preset value; The temperature of the energy storage unit is greater than or equal to the second target temperature of the energy storage unit under heating conditions; The residual photovoltaic power of the photovoltaic power generation module is less than the minimum power of the energy generation unit under heating conditions.

12. The control method according to any one of claims 4, 6, 9, and 11, characterized in that, The steps of determining the target pre-storage mode for shutting down the energy storage unit are performed periodically.

13. The control method according to claim 1, characterized in that, The target requirement is a precooling requirement, and the historical operating data of the energy generation unit meets preset requirement conditions, which include at least one of the following: The energy generation unit must provide zero heating energy during the preset historical duration. The energy generating unit has not been operating in heating mode for the preset historical time period, and the indoor temperature is greater than or equal to the first preset indoor temperature under heating mode. The energy generation unit has not been operating in heating mode for the preset historical time period, and the indoor temperature is greater than or equal to the second preset indoor temperature under cooling mode. The outdoor temperature within the preset historical time period is greater than or equal to the first preset indoor temperature under heating conditions; The outdoor temperature within the preset historical time period is greater than or equal to the second preset indoor temperature under cooling conditions; During the preset historical period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is greater than or equal to the first preset indoor temperature under heating conditions. Within the preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generating unit is greater than or equal to the second preset indoor temperature under cooling conditions.

14. The control method according to claim 1, characterized in that, The target requirement is a preheating requirement, and the historical operating data of the energy generation unit meets preset requirement conditions, which include at least one of the following: The energy generation unit must provide zero cooling energy for the preset historical duration. The energy generation unit has not been operating in cooling mode for the preset historical time period, and the indoor temperature is less than or equal to the first preset indoor temperature in heating mode. The energy generation unit has not been operating in cooling mode for the preset historical time period, and the indoor temperature is less than or equal to the second preset indoor temperature under cooling mode. The outdoor temperature within the preset historical time period is less than or equal to the first preset indoor temperature under heating conditions. The outdoor temperature within the preset historical time period is less than or equal to the second preset indoor temperature under cooling conditions; During the preset historical period, the air inlet temperature of the outdoor unit radiator of the energy generation unit is less than or equal to the first preset indoor temperature under heating conditions. Within the preset historical time period, the air inlet temperature of the outdoor unit radiator of the energy generating unit is less than or equal to the second preset indoor temperature under cooling conditions.

15. The control method according to claim 13 or 14, characterized in that, The steps of determining the target demand for the energy storage unit are performed periodically.

16. The control method according to claim 1, characterized in that, The preset historical duration is the continuous period of 48 to 96 hours prior to the current time.

17. A control device for a temperature regulating equipment, characterized in that, The temperature control device includes an energy generation unit, an energy storage unit, and an indoor heat exchange module; The control device is configured to implement the control method according to any one of claims 1-16.

18. An electronic device, characterized in that, include: At least one processor; as well as A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform the control method according to any one of claims 1-16.

19. A temperature regulating device, characterized in that, It includes an energy generation unit, an energy storage unit, and an indoor heat exchange module, wherein the energy generation unit is connected to the energy storage unit, and the energy storage unit is connected to the indoor heat exchange module; The temperature regulating device further includes the control device as described in claim 17 or the electronic device as described in claim 19.

20. A flexible photovoltaic-thermal energy storage system, characterized in that, The device includes the temperature control device of claim 19, and further includes a photovoltaic power generation module, wherein the photovoltaic power generation module is connected to the energy generation unit in the temperature control device.

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