A wind-solar hybrid water storage temperature control system and method based on the constant temperature environment of permafrost.

Abstract

This invention relates to the field of new energy technology and discloses a wind-solar hybrid water storage temperature control system, method, and apparatus. It includes a water storage device placed in a constant-temperature layer below the permafrost layer. A heating device and a cooling device are installed within the water storage device. The heating and cooling devices penetrate the water storage device and are connected to a joint control device, which is also connected to a power supply device. A low-temperature monitoring device and a high-temperature monitoring device are installed within the water storage device, both of which are connected to the joint control device. A water pump is also installed within the water storage device and is connected to a main water supply pipe. This invention has advantages such as low energy consumption, high stability, high safety, and wide applicability, and can be widely applied to clean heating and agricultural temperature control in high-altitude permafrost regions.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, specifically to a wind-solar hybrid water storage temperature control system and method based on the constant temperature environment of permafrost. Background Technology

[0002] In high-altitude permafrost regions, heating is the core lifeline for people's living and the normal operation of equipment. The ambient temperature above the ground and permafrost layer fluctuates greatly with the seasons, with severe cold in winter and significant temperature differences in summer.

[0003] Traditional heating solutions all rely on fossil fuels (coal and oil), which are difficult to replenish, costly, and ecologically conflicting. Supply risks are uncontrollable, and in remote permafrost areas, transportation is inconvenient; heavy snow in winter can disrupt fuel transport, easily leading to heating outages. Furthermore, long-distance transportation results in fuel costs 23 times higher than in inland areas, leading to extremely high long-term operating costs and low stability. Traditional coal-fired heating methods also have low adaptability; for example, using coal to heat livestock sheds and agricultural sheds can easily cause inconsistent temperature regulation. Traditional heating and cooling equipment is energy-intensive, has high operating costs, relies heavily on grid electricity, has high carbon emissions, and is neither economically nor environmentally friendly.

[0004] Coal combustion poses risks of carbon monoxide poisoning and fire, requires frequent coal replenishment and ash removal, and incurs high labor costs for operation and maintenance. It is unsuitable for sparsely populated remote sites, resulting in a heavy safety and maintenance burden. Existing solar and wind power heating / cooling systems are greatly affected by weather, have strong energy intermittency, and poor temperature stability, making it difficult to meet the continuous demand for constant temperature environments in residential buildings, livestock farms, and vegetable greenhouses.

[0005] Therefore, to address the above issues, a wind-solar hybrid water storage temperature control system and method based on the constant temperature environment of the permafrost layer is needed. Summary of the Invention

[0006] The purpose of this invention is to provide a wind-solar hybrid water storage temperature control system and method based on the constant temperature environment of permafrost. This invention has advantages such as low energy consumption, high stability, high safety, and wide applicability, and can be widely applied to clean heating and agricultural constant temperature control in high-altitude permafrost regions.

[0007] This invention is implemented as follows:

[0008] This invention provides a wind-solar hybrid water storage temperature control system, comprising:

[0009] A water storage device is placed in a constant temperature layer below the permafrost layer. A heating device and a cooling device are provided inside the water storage device. The heating device and the cooling device are connected to a joint control device outside the water storage device. A power supply device is connected to the joint control device.

[0010] The water storage device is equipped with a low-temperature monitoring device and a high-temperature monitoring device, both of which are connected to the combined control device.

[0011] A water pump is also installed in the water storage device. The water pump passes through the water storage device and is connected to a main water supply pipe. The water pump is connected to the joint control device.

[0012] Furthermore, the joint control device is connected to at least one intelligent control client, and both the low-temperature monitoring device and the high-temperature monitoring device are temperature sensors.

[0013] Furthermore, the power supply device is a photovoltaic panel, a wind power generation device, or a grid power source. The photovoltaic panel or wind power generation device is connected to an energy storage device, the energy storage device is connected to an inverter, and the inverter is connected to the joint control device.

[0014] Furthermore, the heating device is an electric heating rod fixedly installed inside the water storage device, and the cooling device is a cooling copper pipe fixedly installed inside the water storage device. The cooling copper pipe passes through the water storage device and is connected to a cooling compressor, which is connected to the joint control device.

[0015] Furthermore, the water supply pipe is connected to an indoor underfloor heating coil, and the outlet end of the underfloor heating coil is connected to a return water pipe, which passes through the water storage device and is internally connected to it. At least one indoor manifold is provided between the water supply pipe and the underfloor heating coil.

[0016] Furthermore, the water storage device is a fiberglass insulated water tank, a precast concrete water tank, or a cast-in-place concrete water tank. When the water storage device is a fiberglass insulated water tank, a fiberglass base is provided at the bottom of the fiberglass insulated water tank. The inner wall of the precast concrete water tank and the cast-in-place concrete water tank is covered with a 100mm thick polyurethane insulation layer, and a water tank liner is provided on the polyurethane insulation layer. The liner is made of fiberglass cloth and epoxy resin.

[0017] Furthermore, the present invention provides a method for temperature control of wind-solar hybrid water storage, comprising:

[0018] During the day when there is sufficient sunlight, photovoltaic panels and wind power generation devices generate electricity, which is then stored in energy storage devices.

[0019] During the heating season, the temperature inside the water storage device is monitored by low temperature monitoring device and high temperature monitoring device; when the water temperature inside the water storage device is lower than the set temperature 1, the joint control device controls the electric heating rod to start heating automatically; when the temperature inside the water storage device reaches the set temperature 2, the joint control device controls the electric heating rod to stop heating.

[0020] During the season when cooling is required, the temperature of the water in the storage tank is monitored by a low temperature monitoring device. If the temperature is higher than the set temperature of 3, the ground refrigeration compressor is controlled by a joint control device. The refrigeration compressor cools the water in the storage tank to below the set temperature of 3 through refrigeration copper pipes. When the water temperature in the storage tank is lower than the set temperature of 4, the refrigeration compressor automatically stops.

[0021] When heating or cooling is needed indoors, a control command is sent to the joint control device through the smart control client. The joint control device then controls the operation of the water pump, which pumps water from the storage device into the manifold through the water supply pipe. The manifold then supplies the water into the underfloor heating coils indoors.

[0022] When the set temperature 1 is 45℃, the set temperature 2 is 75℃, the set temperature 3 is 10℃, and the set temperature 4 is 5℃.

[0023] Furthermore, the present invention provides a wind-solar hybrid water storage temperature control device, including a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus. The machine-readable instructions are executed by the processor to perform the steps of any of the above-described wind-solar hybrid water storage temperature control methods.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. The system of this invention has strong stability. The water storage device and pipeline are buried / insulated and antifreeze, which is suitable for the frozen soil environment in the north. There is no risk of frozen pipes or freezing cracks. There is no pollution from coal combustion. It is safe and environmentally friendly. Through photovoltaic power generation, it can meet the heating needs of the whole day on sunny days. It can still provide stable heating for 23 consecutive days of cloudy and snowy days, and the room temperature is kept constant at about 20℃.

[0026] 2. Low cost: This invention mainly uses photovoltaic clean energy, which requires almost no daily mains electricity and only a small amount of supplemental electricity in extremely cold weather. The operating cost is close to zero, and it saves more than 80% energy compared to traditional electric heating.

[0027] 3. Reliable operation, simple system structure, no complex mechanical parts, low failure rate, extremely low maintenance cost, long service life, suitable for various types of houses, breeding sheds, and agricultural greenhouses with different building areas, solving the problem of unstable heating on cloudy and rainy days and at night in traditional solar heating. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a system structure diagram of the present invention.

[0030] Figure 2 This is a schematic diagram of the internal structure of the water storage device of the present invention;

[0031] Figure 3 This is a flowchart of the method of the present invention;

[0032] Among them, the components are: 1. Underfloor heating coil; 10. Frozen soil layer; 2. Manifold; 21. Water supply pipe; 23. Water supply inlet pipe; 24. Return pipe; 3. Joint control device; 4. Refrigeration compressor; 41. Refrigeration copper pipe; 5. Water storage device; 51. Base; 6. Ground; 7. Photovoltaic panel; 101. Low temperature monitoring device; 102. High temperature monitoring device; 8. Heating wire; 81. Electric heating rod; 9. Water pump; and 91. Water supply main pipe. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to describe selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figure 1 Figure 2 This invention provides a wind-solar hybrid water storage temperature control system:

[0036] In this embodiment, a water storage device 5 is placed in a constant temperature layer below the permafrost layer. A heating device and a cooling device are provided in the water storage device 5. The heating device and the cooling device pass through the water storage device and are connected to a joint control device 3. A power supply device is connected to the joint control device 3.

[0037] A low-temperature monitoring device 101 and a high-temperature monitoring device 102 are installed in the water storage device. Both the low-temperature monitoring device 101 and the high-temperature monitoring device 102 are connected to the joint control device 3.

[0038] A water pump 9 is also installed inside the water storage device 5. The water pump 9 passes through the water storage device 5 and is connected to a water supply main pipe 91, which is connected to the water supply pipe 21. The water pump 9 is connected to the combined control device 3.

[0039] In this embodiment, the joint control device 3 is connected to at least one smart control client, and both the low-temperature monitoring device 101 and the high-temperature monitoring device 102 are temperature sensors. The smart control client is paired with a commercially available smart switch and connected to a smart home system, enabling remote temperature adjustment.

[0040] In this embodiment, the power supply device is a photovoltaic panel, a wind power generation device, or a grid power source. The photovoltaic panel or wind power generation device is connected to an energy storage device, the energy storage device is connected to an inverter, and the inverter is connected to the joint control device.

[0041] In this embodiment, the heating device is an electric heating rod fixedly installed inside the water storage device, and the cooling device is a cooling copper tube fixedly installed inside the water storage device. The cooling copper tube is coiled and fixed inside the water storage device, and the electric heating rod is fixedly installed adjacent to the cooling copper tube inside the water storage device.

[0042] The refrigeration copper pipe passes through the water storage device and is connected to the refrigeration compressor 4, which is connected to the joint control device 3.

[0043] In this embodiment, the water supply pipe is connected to a floor heating coil 1 arranged indoors, and the outlet end of the floor heating coil 1 is connected to a return water pipe 24, which passes through the water storage device 5 and communicates with the interior of the water storage device 5. At least one indoor water distributor 2 is provided between the water supply pipe 21 and the floor heating coil 1.

[0044] In this embodiment, the water storage device 5 is a fiberglass insulated water tank, a precast concrete water tank, or a cast-in-place concrete water tank. When the water storage device is a fiberglass insulated water tank, a fiberglass base 51 is provided at the bottom of the fiberglass insulated water tank. A 100mm thick polyurethane insulation layer is laid on the inner wall of the precast concrete water tank and the cast-in-place concrete water tank. A water tank liner is provided on the polyurethane insulation layer. The liner is made of fiberglass cloth and epoxy resin.

[0045] In this embodiment, specifically:

[0046] This system, for example, is designed for heating a 200㎡ residential house. It uses 40㎡ of high-efficiency photovoltaic panels and a 30-ton fiberglass insulated water storage device, buried under the permafrost layer, to achieve the effects of clean energy self-heating, off-peak electricity supplemental heating, and constant temperature heating around the clock.

[0047] Specifically, during construction, the site is excavated to a depth of 56 meters in an open area adjacent to the building requiring heating. The water storage device, including double-layered fiberglass insulated water tanks, is then buried at least 1.5 meters below the frost line. For precast or cast-in-place concrete tanks, a 100mm thick polyurethane insulation layer is applied to the inner wall, followed by a leak-proof inner liner made of fiberglass cloth and epoxy resin. The entire tank is buried below the frost line to prevent freezing and cracking in winter, minimizing heat loss. The tank volume is adjusted proportionally to the heating area, providing a large heat storage capacity.

[0048] A 40㎡ high-efficiency monocrystalline silicon photovoltaic panel, with a total power of approximately 9kW, is installed on the roof of the building being heated, making full use of the high solar radiation resources to provide the main power and heat source for the system. A 10kW pure sine wave inverter is installed and connected to the photovoltaic panel and connected to a joint control device.

[0049] Specifically, in this embodiment, a 36kW submersible electric heating rod is used, along with an intelligent temperature control system. During the day when there is sufficient sunlight, the photovoltaic panel generates electricity to directly drive the heating rod to heat the water tank and start the water pump to provide indoor heating. Excess heat is stored in the water storage device. At night or on cloudy / rainy days, the water tank stores heat for circulating heating. On continuous cloudy or snowy days, photovoltaic power is prioritized for power supply. Heating is automatically started when the water temperature is below 45°C and automatically stops when it reaches 75°C. When there is no sunlight, the system can switch to off-peak electricity from the mains to supplement the heating.

[0050] Specifically, in this embodiment, the heating circulation system is equipped with a high-flow hot water circulation pump, check valve, filter, and insulated pipes, which are connected to underfloor heating coils or radiators to achieve hot water circulation heating. The entire pipeline is treated with antifreeze insulation.

[0051] Specifically, in this embodiment, the refrigeration cycle operates as follows: During the warmer months of May and June, the onboard ground-mounted refrigeration compressor connects to copper coils to supply water in the tank, which has naturally cooled to a constant temperature of 1315 degrees Celsius. This water is then further cooled to below 10 degrees Celsius. An intelligent temperature control system prioritizes photovoltaic power supply. The system automatically starts refrigeration when the water temperature exceeds 10 degrees Celsius and automatically shuts off when the temperature drops below 5 degrees Celsius. No additional power is required when there is no sunlight (it doesn't heat on cloudy days). The system is equipped with the existing high-flow water circulation pump, check valve, filter, and insulated piping used for heating. This connects to underfloor heating coils or radiators to achieve cold water circulation and cooling. In high-altitude, cold regions above 2000 meters, a separate refrigeration unit is not required.

[0052] In this embodiment, the power generation of the 40㎡ photovoltaic system is expressed as follows:

[0053] 1㎡≈220W 40㎡≈8.8kW (calculated at 9kW);

[0054] In this embodiment, the product is located in the Hexi Corridor region of Gansu Province;

[0055] Average daily peak sunshine ≈ 5 hours 9kW; Photovoltaic power generation per day: 9kW × 5h × 0.85 ≈ 38 kWh / day;

[0056] Maintaining heating for 200㎡: approximately 20-40 degrees Celsius per day. In this embodiment, the electricity generated during the day not only provides heating throughout the day but also heats the water in the storage device.

[0057] Specifically, in this embodiment, on sunny days, the photovoltaic system directly drives the heating rod and water pump to easily raise the water temperature to 70-85℃, stabilizing the room temperature above 20℃. The heat generated during the day is not entirely stored in the 40-ton water storage device, equivalent to a large solar-powered heating system. At night and on cloudy days, only the heat from the water tank is used to stably supply the water for an entire night or even a whole day. The system releases heat as the water temperature drops from 90℃ to 40℃.

[0058] Total heat storage ≈ 550 kWh of electricity; for a 200㎡ house, assuming a heat dissipation of approximately 10kW per hour:

[0059] 550 ÷ 10 ≈ 55 hours, which is more than 2 days of continuous heating without generating any electricity or requiring further heating. Only after 3-4 consecutive days of cloudy or snowy weather would a small amount of electricity be needed; the actual number of days requiring electricity in a year is extremely small. Meanwhile, the polyurethane-insulated storage tanks below the permafrost layer, operating at zero capacity, have a ground temperature of around 5°C year-round, resulting in a heat loss of approximately 46 degrees Celsius per day (24 hours).

[0060] Example 2

[0061] In this embodiment, as Figure 3 This invention provides a method for temperature control of wind-solar hybrid water storage, comprising:

[0062] During the day when there is sufficient sunlight, photovoltaic panels and wind power generation devices generate electricity, which is then stored in energy storage devices.

[0063] This includes determining whether the daytime wind and solar power generation meets a threshold through a joint control device, and storing the electrical energy into the energy storage device if the threshold is met and the energy storage device is not fully charged; the expression is as follows:

[0064]

[0065] in, for Real-time photovoltaic power generation Minimum starting power for photovoltaic power generation; The real-time power output of wind power generation at time t; This is the minimum starting power for wind power generation; Let t be the remaining charge of the energy storage device; This refers to the rated maximum capacity of the energy storage device.

[0066] The dynamic update expression for energy storage capacity is as follows:

[0067]

[0068] in, To improve the charging efficiency of energy storage devices. This is the system's real-time total power load, which is the sum of the power of the electric heating rod, refrigeration compressor, and water pump.

[0069] During the heating season, the temperature inside the water storage device is monitored by low-temperature and high-temperature monitoring devices. When the water temperature in the storage device is lower than the set temperature 1, the joint control device automatically starts the electric heating rod. When the temperature inside the storage device reaches the set temperature 2, the joint control device stops the electric heating rod. This includes:

[0070] Heating is set according to the local climate. Refrigeration Season time range, output mode flag:

[0071]

[0072]

[0073] In the formula, This refers to the start and end dates of the heating season. This refers to the start and end dates of the cooling season.

[0074] During the season when cooling is required, the temperature of the water in the storage tank is monitored by a low temperature monitoring device. If the temperature is higher than the set temperature of 3, the ground refrigeration compressor is controlled by a joint control device. The refrigeration compressor cools the water in the storage tank to below the set temperature of 3 through refrigeration copper pipes. When the water temperature in the storage tank is lower than the set temperature of 4, the refrigeration compressor automatically stops.

[0075] When heating or cooling is needed indoors, a control command is sent to the joint control device through the smart control client. The joint control device then controls the operation of the water pump, which pumps water from the storage device into the manifold through the water supply pipe. The manifold then supplies the water into the underfloor heating coils indoors.

[0076] When the set temperature 1 is 45℃, the set temperature 2 is 75℃, the set temperature 3 is 10℃, and the set temperature 4 is 5℃.

[0077] This implementation includes: hysteresis control for water storage heating during the heating season, using dual-threshold hysteresis control to avoid frequent start-stop of electric heating rods, which is only effective in the heating season mode;

[0078]

[0079] in, Set temperature 1; To set temperature 2, Set temperature 3; Let t be the real-time water temperature inside the water storage device at time t;

[0080] When the water temperature drops to 45℃ or below and the stored energy is sufficient, the electric heating rod will start.

[0081] When the water temperature rises to 75℃ or above, the electric heating rod stops; when the water temperature is in the range of 45℃-75℃, it maintains the previous operating state and hysteresis is maintained.

[0082] The electric heating rods are always off during the non-heating season.

[0083] Formula for the dynamic change of water temperature during the heating process:

[0084]

[0085] in This refers to the heat dissipation per unit step of the water storage device. for The status of the electric heating rod is constantly monitored. The specific heat capacity of water, The total mass of water in the water storage device;

[0086] Among them, the cooling hysteresis control for water storage during the cooling season also adopts dual-threshold hysteresis control, which is only effective in the cooling season mode.

[0087]

[0088] When the water temperature rises to 10°C or above and the stored energy is sufficient, the refrigeration compressor starts.

[0089] The refrigeration compressor stops when the water temperature drops to 5°C or below.

[0090] When the water temperature is between 5℃ and 10℃, maintain the operating status of the previous moment;

[0091] The compressor is always off during the non-cooling season. The formula for the dynamic change in water temperature during the refrigeration process is as follows:

[0092] in, The heat absorbed from the environment per unit step by the water storage device; Indoor underfloor heating circulating water supply control, triggered by commands from a smart client, jointly controls the water pump with seasonal modes:

[0093]

[0094] The water pump starts only when the client issues an activation command and it is currently the heating / cooling season, sending the stored water into the manifold and underfloor heating coils; otherwise, the water pump stops.

[0095] Example 3

[0096] In this embodiment, the present invention provides a wind-solar hybrid water storage temperature control device, including a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor and the memory communicate through the bus. The machine-readable instructions are executed by the processor to perform the steps of any of the above-described wind-solar hybrid water storage temperature control methods.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations will be apparent to those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A wind-solar hybrid water storage temperature control system, characterized in that: include: A water storage device (5) is placed in a constant temperature layer below the frozen soil layer. A heating device and a cooling device are provided in the water storage device (5). The heating device and the cooling device pass through the water storage device and are connected to a joint control device (3). A power supply device is connected to the joint control device. A low-temperature monitoring device (101) and a high-temperature monitoring device (102) are installed in the water storage device, and both the low-temperature monitoring device (101) and the high-temperature monitoring device (102) are connected to the joint control device (3). A water pump (9) is also provided in the water storage device (5). The water pump (9) passes through the water storage device and is connected to the water supply main pipe (91). The water pump (9) is connected to the joint control device (3).

2. The wind-solar hybrid water storage temperature control system according to claim 1, Its features are: The joint control device (3) is connected to at least one intelligent control client, and the low temperature monitoring device (101) and the high temperature monitoring device (102) are both temperature sensors.

3. The wind-solar hybrid water storage temperature control system according to claim 1, characterized in that: The power supply device is a photovoltaic panel, a wind power generation device, or a grid power source. The photovoltaic panel or wind power generation device is connected to an energy storage device. The energy storage device is connected to an inverter. The inverter is connected to the joint control device.

4. The wind-solar hybrid water storage temperature control system according to claim 1, characterized in that: The heating device is an electric heating rod (81) fixedly installed in the water storage device (5), and the cooling device is a cooling copper pipe fixedly installed in the water storage device (5). The cooling copper pipe passes through the water storage device and is connected to a cooling compressor (4). The cooling compressor (4) is connected to the joint control device (3).

5. The wind-solar hybrid water storage temperature control system according to claim 1, characterized in that: The water supply pipe (21) is connected to the floor heating coil (1) arranged in the room. The outlet end of the floor heating coil (1) is connected to the return pipe (24). The return pipe (24) passes through the water storage device (5) and is connected to the interior of the water storage device (5).

6. The wind-solar hybrid water storage temperature control system according to claim 5, characterized in that: At least one indoor water manifold (2) is provided between the water supply pipe (21) and the floor heating coil (1).

7. The wind-solar hybrid water storage temperature control system according to claim 1, characterized in that: The water storage device (5) is a fiberglass insulated water tank, a precast concrete water tank or a cast-in-place concrete water tank. The inner wall of the precast concrete water tank and the cast-in-place concrete water tank is covered with a 100mm thick polyurethane insulation layer, and the inner liner of the water tank is provided on the polyurethane insulation layer.

8. A method for temperature control of water storage in wind-solar hybrid systems, characterized in that: include: During the day when there is sufficient sunlight, photovoltaic panels and wind power generation devices generate electricity, which is then stored in energy storage devices. This includes determining whether the daytime wind and solar power generation meets a threshold through a joint control device, and storing the electrical energy into the energy storage device if the threshold is met and the energy storage device is not fully charged; the expression is as follows: in, for Real-time photovoltaic power generation Minimum starting power for photovoltaic power generation; The real-time power output of wind power generation at time t; This is the minimum starting power for wind power generation; Let t be the remaining charge of the energy storage device; This refers to the rated maximum capacity of the energy storage device. The dynamic update expression for energy storage capacity is as follows: in, To improve the charging efficiency of energy storage devices. The total real-time power load of the system is the sum of the power of the electric heating rod, the refrigeration compressor, and the water pump. During the heating season, the temperature inside the water storage device is monitored by low-temperature and high-temperature monitoring devices. When the water temperature in the storage device is lower than the set temperature 1, the joint control device automatically starts the electric heating rod. When the temperature inside the storage device reaches the set temperature 2, the joint control device stops the electric heating rod. This includes: Heating is set according to the local climate. Refrigeration Season time range, output mode flag: In the formula, This refers to the start and end dates of the heating season. This refers to the start and end dates of the cooling season; During the season when cooling is required, the temperature of the water in the storage tank is monitored by a low temperature monitoring device. If the temperature is higher than the set temperature of 3, the ground refrigeration compressor is controlled by a joint control device. The refrigeration compressor cools the water in the storage tank to below the set temperature of 3 through refrigeration copper pipes. When the water temperature in the storage tank is lower than the set temperature of 4, the refrigeration compressor automatically stops. When heating or cooling is needed indoors, a control command is sent to the joint control device through the smart control client. The joint control device then controls the operation of the water pump, which pumps water from the storage device into the manifold through the water supply pipe. The manifold then supplies the water into the underfloor heating coils indoors.

9. The method for temperature control of wind-solar hybrid water storage according to claim 8, characterized in that: When the set temperature 1 is 45℃, the set temperature 2 is 75℃, the set temperature 3 is 10℃, and the set temperature 4 is 5℃; Includes: Hysteresis control for water storage heating during the heating season, using dual-threshold hysteresis control to avoid frequent start-stop of electric heating rods, effective only in heating season mode; in, Set temperature 1; To set temperature 2, Set temperature 3; Let t be the real-time water temperature inside the water storage device at time t; When the water temperature drops to 45℃ or below and the stored energy is sufficient, the electric heating rod will start. When the water temperature rises to 75℃ or above, the electric heating rod stops; when the water temperature is in the range of 45℃-75℃, it maintains the previous operating state and hysteresis is maintained. The electric heating rods are always off during the non-heating season. Formula for the dynamic change of water temperature during the heating process: in This refers to the heat dissipation per unit step of the water storage device. for The status of the electric heating rod is constantly monitored. The specific heat capacity of water, The total mass of water in the water storage device; Among them, the cooling hysteresis control for water storage during the cooling season also adopts dual-threshold hysteresis control, which is only effective in the cooling season mode. When the water temperature rises to 10°C or above and the stored energy is sufficient, the refrigeration compressor starts. The refrigeration compressor stops when the water temperature drops to 5°C or below. When the water temperature is between 5℃ and 10℃, maintain the operating status of the previous moment; The compressor is always off during the non-cooling season. The formula for the dynamic change in water temperature during the refrigeration process is as follows: in, The heat absorbed from the environment per unit step by the water storage device; Indoor underfloor heating circulating water supply control, triggered by commands from a smart client, jointly controls the water pump with seasonal modes: The water pump starts only when the client issues an activation command and it is currently the heating / cooling season, sending the stored water into the manifold and underfloor heating coils; otherwise, the water pump stops.

10. A wind-solar hybrid water storage temperature control device, characterized in that, include: The device includes a processor, a memory, and a bus. The memory stores machine-readable instructions executable by the processor. When the electronic device is running, the processor communicates with the memory via the bus. The machine-readable instructions are executed by the processor to perform the steps of the wind-solar hybrid water storage temperature control method as described in any one of claims 8 to 9.

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