Integrated wind power heat pump

Abstract

The invention discloses an integrated wind power heat pump and aims to solve the problems that wind power generation equipment is unstable in electric power, electric power storage facilities are high in cost and have potential safety hazards, a heat pump system is high in noise, and the requirement for installation space is high. The device integrates wind power generation and heat pump technologies and comprises a wind power mechanism, a power generation mechanism, a surface evaporator, a heat pump main body, an electric power storage mechanism and an energy storage mechanism, the surface wind speed of a surface cooler is increased through wind power, the power consumption of a fan is reduced, the heat production and cold production capacity of electric power is improved by means of reverse Carnot cycle, and the power saving effect is achieved; meanwhile, mechanism power storage equipment is replaced with energy storage equipment, the fire risk is reduced, the heat pump system is arranged through the space of wind power equipment, and the building space is saved. The system is suitable for special building environments such as electric power islands, wind power surplus areas, cold and hot high-cost areas, areas needing energy backup, areas needing low energy operation cost and the like, can stably provide electric power, heat energy and cold sources, and has remarkable economical efficiency and safety advantages.

Description

Technical Field

[0001] The present invention relates to the field of new energy and energy-saving technologies, and particularly to an integrated wind power heat pump. Background Art

[0002] With the acceleration of the global industrialization process and population growth, the demand for energy continues to climb. The limitations of traditional fossil energy and its negative impact on the environment have become increasingly prominent, prompting the accelerated development and application of new energy technologies such as wind energy and solar energy. Against the backdrop of the continuous improvement of the living environment and the gradual expansion of the per capita living area, modern buildings have put forward higher requirements for the types and supply stability of energy, mainly requiring three forms of energy: electricity, heat energy, and cold source. Among them, heat energy is used for heating, bathing, domestic hot water supply, drying, etc., and the cold source is used for cooling, freezing, dehumidification, and refrigeration, etc.

[0003] In special building environments such as isolated islands, the basic energy is mainly electricity, and common sources include wind power, photovoltaic power, and hydropower. However, hydropower is strictly restricted by geographical conditions, and photovoltaic power is significantly affected by natural conditions and climate factors such as day and night alternation, seasonal changes, and weather conditions. Wind power has a wider applicability and relative persistence, making it a relatively reliable power source in these special scenarios.

[0004] At present, although wind power generation systems can provide electricity, due to the intermittency and volatility of wind power, the generated electric energy is unstable and cannot directly meet the demand for stable electricity of equipment such as household appliances. Therefore, wind power generation equipment usually needs to be equipped with a large-scale energy storage facility to balance the power output, which not only increases the initial investment cost of the system but also brings potential safety hazards of the energy storage equipment, such as problems of anti-freezing and anti-high temperature of the battery, and requires a dedicated indoor environment for installation.

[0005] In addition, to meet the building's demand for heat energy and cold source, a heat pump system usually needs to be additionally configured. However, traditional heat pump systems have some problems: one is that the fan of its outdoor unit will generate high-frequency noise during operation, causing interference to the surrounding environment and residents' lives; the other is that the installation and operation of the heat pump system require additional space and equipment investment, further increasing the complexity and cost of the building energy system.

[0006] In order to ensure the stable supply of building energy, while reducing costs, saving space, and achieving efficient conversion and utilization of electricity, heat energy, and cold source, an integrated wind power heat pump is proposed, aiming to integrate wind power generation and heat pump technologies and optimize the overall performance and economy of the energy system. Summary of the Invention

[0007] The object of the present invention is to provide an integrated wind power heat pump that can stably supply the heat or cold energy required by a household, while reducing the investment in energy storage equipment, reducing the fire risk, reducing noise, and saving installation space, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] An integrated wind power heat pump, comprising a wind power mechanism, a power generation mechanism, a surface evaporator, a heat pump main body, an energy storage mechanism, and an energy storage mechanism;

[0010] The wind power mechanism includes a wind blade, a wind power column, and a high-speed rotating impeller. The wind blade is fixed to the top of the wind power column, and the high-speed rotating impeller is located below the wind blade and is coaxially connected to the wind power mechanism;

[0011] The power generation mechanism includes a generator integrated on the top of the wind power column. The generator is mechanically connected to the wind blade to convert wind energy into electrical energy;

[0012] The surface evaporator is fixed to the surface of the wind power column. It is internally provided with a working medium pipeline and is communicated with the heat pump main body through the internal space of the wind power column;

[0013] The heat pump main body is arranged inside the wind power base and is connected to the generator through a power line;

[0014] The energy storage mechanism is arranged inside the wind power base and is electrically connected to the generator and the heat pump main body for storing and regulating the electrical energy output;

[0015] The energy storage mechanism includes a heat storage tank and a cold storage tank, which are arranged inside the wind power base, are respectively connected to the heat pump main body through a heat supply pipeline and a cold supply pipeline, and are provided with an external heat output pipeline and an external cold output pipeline. At the same time, a loop pipeline is provided to form a circulation loop.

[0016] Further, the surface evaporator is installed on the wind power main trunk, and is in an inverted V-shaped horn structure or an externally closed arc-shaped and gradually converging structure from bottom to top or a cylindrical structure. The protective layer it covers is provided with a photovoltaic, solar thermal, or photovoltaic-thermal integrated component on its sunny side; the installation position of the surface evaporator forms a protective barrier for the wind blade and the high-speed rotating impeller, and increases the climbing difficulty of the wind power column.

[0017] Further, the inside of the wind power column is provided with a heat insulation layer, and the working medium pipeline is longitudinally arranged along its inside.

[0018] Further, the energy storage mechanism is bidirectionally connected to the external power grid through a cable connecting to the external circuit for receiving external power supplement or outputting electrical energy to the outside.

[0019] Further, the rotational speed of the high-speed rotating impeller is in a proportional relationship with the wind force, synchronously driving the air flow speed of the surface evaporator, and there is no need for additional electric power to drive the fan.

[0020] Further, the internal space of the wind power base is hierarchically arranged with a heat pump main body, a power storage mechanism and an energy storage mechanism, and the weight of the base and the total mass of the heat pump main body and the energy storage mechanism together constitute the stability counterweight of the wind power equipment.

[0021] Further, the wind power generation equipment and the heat pump system are combined into a set of systems to realize the intelligent linkage of the wind power and the heat pump system, so as to solve the problem of the mismatch between the volatility of the wind power output and the load demand of the heat pump.

[0022] Further, the heat pump is used to directly convert electric power into heat or cold and store it locally, thereby effectively reducing the energy storage ratio of the wind turbine. The system outputs electricity, heat and cold to the outside, and at the same time, it also uses the output cable to transmit electricity back from other power grids to form an energy complementary mechanism.

[0023] Further, an energy system combining wind power generation, electric energy storage, heat pump cold and heat double energy storage, environmental forecasting system and minimum electric power supplement from the external network is formed. Through an optimization algorithm, the energy distribution is dynamically regulated. On the basis of meeting the user's set requirements and environmental variable prediction, the charge and discharge efficiency of the energy storage battery is guaranteed to be between 80% and 95%, and the maximum comprehensive energy efficiency of the system is realized.

[0024] Further, the optimization algorithm includes model predictive control or dynamic programming algorithm. According to the current wind power, battery state, predicted wind power, user model and energy storage state parameters, wind power and energy storage are preferentially used, and the electricity consumption of the external network is minimized. At the same time, the constraints of the charge and discharge efficiency of the battery and the temperature limit of heat storage / cold storage are considered to ensure the stable operation and high energy efficiency of the system.

[0025] The beneficial effects of the present invention:

[0026] 1. Power saving: Utilize wind power to increase the surface wind speed of the surface cooler, reduce the power consumption of the fan; the heat pump can be started at any time to avoid the overflow of wind power; reduce the direct and alternating current conversion back and forth of wind power generation; improve the heat and cold production capacity of electric power through the reverse Carnot cycle; combine and shorten the heat pump circuit to save power.

[0027] 2. Eliminate hazards: Reduce the configuration of energy storage equipment and replace it with energy storage equipment to reduce the fire risk; add a surface cooler on the column to increase the climbing difficulty; place the heat pump energy storage at the bottom of the fan to play an important counterweight role.

[0028] 3. Save materials: Save the cable of the heat pump; utilize the idle columns of wind power, the underground fixed space, the weight of energy storage and equipment, the circuit cost of the wind turbine and fan of wind power, the material cost of replacing energy storage with energy storage and the later replacement frequency, etc.

[0029] 4. Space saving: Utilize the space occupied by wind power, integrate the heat pump system into it, and at the same time, the heat storage equipment required in the building can be placed at its bottom. Meanwhile, the electricity storage equipment can be placed at the bottom of the wind power. The heat pump solves the temperature control requirement of its placement space, saving space in the building. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the wind power mechanism of the present invention;

[0032] Figure 3 It is a schematic diagram of surface cooling of the present invention;

[0033] Figure 4 It is a schematic diagram of the product structure of the energy main body;

[0034] Figure 5 It is a diagram for explaining the energy operation relationship.

[0035] Wherein: 1. Wind blade; 2. Generator; 3. High-speed rotating impeller; 4. Surface evaporator (surface cooler / evaporator); 5. Wind power column; 6. Wind power base; 7. Heat pump main body; 8. Electricity storage mechanism; 9. Heat storage tank; 10. Cold storage tank; 11. Cable connecting to the external circuit; 12. External heat output pipeline; 13. External cold output pipeline; 14. Loop pipeline; 15. Wind power output circuit; 16. Electricity storage feedback circuit; 17. Heat pump circuit; 18. Power control system; 19. Cold output three-way valve; 20. Cold loop three-way valve; 21. Heat output three-way valve; 22. Heat loop three-way valve. SPECIFIC EMBODIMENTS

[0036] Design principle:

[0037] The design principle of integrating wind power generation, refrigeration and heating systems, heat pump energy system and energy storage is as follows:

[0038] This design aims to make full use of the electric energy generated by wind power, and at the same time, combine the heat pump energy system and energy storage technology to realize the preliminary preparation and distribution of electric power, heat energy and cold source. Through this design, not only the hidden danger of electric energy storage is reduced, the basic investment of the electricity storage equipment is reduced, but also the electric energy generated by wind power is utilized to the greatest extent, providing stable electric power, heat energy and cold source.

[0039] In specific implementation, first, taking advantage of the spatial layout and stability requirements of wind power equipment, the surface evaporator of the heat pump unit is attached to the wind power strut. This can not only form a barrier against accidental climbing of the wind power column but also use the weight of the heat pump unit and the energy storage mechanism as a counterweight for the wind power equipment, achieving the maximum utilization of space. At the same time, by utilizing the synchronization of wind power with power generation capacity and fan speed, a greater airflow is provided for the surface evaporator during the operation of the heat pump, thus solving the energy consumption problem of electric drive and reducing or avoiding the impact of fan noise on the environment.

[0040] In addition, this design also focuses on making prior allocations in energy demand. By dividing energy demand into three aspects: electricity, heat energy, and cold source, it reduces potential problems such as electricity storage hazards and subsequent environmental pollution. At the same time, by reasonably utilizing the airflow provided by the rotation formed by environmental wind for the surface evaporator of the heat pump, it reduces or even avoids the electric energy consumption and noise of using a fan to accelerate the local air velocity of the surface evaporator of the heat pump.

[0041] In terms of stabilizing electricity, this design avoids the impact of wind power fluctuations on electricity storage. By stably converting excess electricity into heat energy or cold source and storing it in the system for later use within the system, the effective utilization of electricity is achieved. In terms of the heat pump, due to the increase in energy storage equipment, it reduces the equipment investment in large-scale heating and cooling units during sudden heating or cooling demands, further improving the economy and practicality of the system.

[0042] In summary, through the integrated integration of wind power generation, refrigeration and heating systems, heat pump energy systems, and energy storage technologies, this design realizes the efficient utilization and stable supply of energy, making a positive contribution to sustainable development and environmental protection.

[0043] An integrated wind power heat pump

[0044] comprises a wind power mechanism, a power generation mechanism, a surface evaporator, a heat pump main body, a power storage mechanism, and an energy storage mechanism. Optionally, a power storage mechanism can be added to perform peak shaving on electricity; further, the energy can be stored in various forms, such as heat energy and cold source forms, which can not only reduce the investment in electricity storage but also provide a suitable storage environment for the power storage equipment.

[0045] The wind power mechanism includes a wind blade 1, a wind power column 5, and a high-speed rotating impeller 3. The wind blade 1 is fixed at the top of the wind power column 5. The high-speed rotating impeller 3 is located below the wind blade 1 and is coaxially connected to the main shaft of the wind blade 1 in the wind power mechanism. Among them, the high-speed rotating impeller 3 is mainly composed of a hub and blades. The hub is the central part of the impeller, responsible for connecting the main shaft of the wind power mechanism and transmitting the rotational motion of the impeller to the entire wind power mechanism.

[0046] Specifically,

[0047] The wind blade 1 is the power mechanism of the wind power, and at the same time provides wind power for the surface evaporator 4 covering the wind power column 5. According to the principle that the greater the wind power, the higher the power generation efficiency of the generator 2, the higher the rotational speed of the high-speed rotating impeller 3, the greater the working requirement of the heat pump main body 7, and the greater the wind power required on the surface of the surface evaporator 4. It is completely in line with the fact that the operation of the heat pump main body 7 is proportional to the rotational speed of the axial flow fan and the rotational speed of the wind power generation impeller. The operation of the heat pump main body 7 is coordinated with the rotational speed of the axial flow fan. The axial flow fan provides the necessary air flow for the heat pump main body 7 to promote the absorption or release of heat, thereby improving the working efficiency of the heat pump.

[0048] The power generation mechanism includes a generator 2, which is integrated on the top of the wind power column 5. The generator 2 is mechanically connected to the wind blade 1 and converts the kinetic energy and potential energy formed by the wind energy into electrical energy under the drive of the wind.

[0049] The surface evaporator 4 is fixed on the surface of the wind power column 5. It is internally provided with a working medium pipeline and is connected to the heat pump main body 7 through the internal space of the wind power column 5;

[0050] Specifically,

[0051] The surface evaporator 4 provides corresponding energy for the operation of the heat pump main body 7. When the heat pump main body 7 refrigerates, the surface evaporator 4 acts as a surface cooler to complete the cooling function of the coolant (such as cold water or refrigerant) transported by the heat pump main body 7; when the heat pump supplies heat, the surface evaporator 4 acts as an evaporator to complete the evaporation function of the coolant (such as cold water or refrigerant) transported by the heat pump.

[0052] The heat pump main body 7 is arranged inside the wind power base 6 and is connected to the generator 2 through an electric power line;

[0053] Specifically,

[0054] The heat pump main body 7 operates using electricity (wind power or other electricity), operates synchronously with the wind force, and under the synchronous operation of the surface evaporator 4, transports the heat energy and cold energy generated thereby to the main equipment in the corresponding energy storage body.

[0055] The electricity storage mechanism 8 is arranged inside the wind power base 6 and is electrically connected to the generator 2 and the heat pump main body 7 for storing and regulating the electrical energy output;

[0056] Specifically,

[0057] The electricity storage mechanism 8 stores the electrical energy formed by the wind force and stably supplies the transmission of external electricity and the electrical energy transmission for the operation of the heat pump main body 7.

[0058] The energy storage mechanism includes a heat storage tank 9 and a cold storage tank 10, which are arranged inside the wind power base 6, are respectively connected to the heat pump main body 7 through a heat supply pipeline and a cold supply pipeline, are provided with an external heat output pipeline 12 and an external cold output pipeline 13, and are also provided with a loop pipeline 14 to form a circulation loop;

[0059] Specifically,

[0060] Under the required adjustment, the heat energy generated after the heat pump main body 7 operates is stored in the corresponding heat storage tank 9 and cold storage tank 10; meanwhile, the corresponding heat energy or cold energy is provided through the heat supply pipeline and the cold supply pipeline, and a loop pipeline 14 is also included to form a circulation loop.

[0061] The process of forming the circulation loop of the energy storage mechanism is as follows:

[0062] Heat energy circulation:

[0063] Heat energy storage: The heat energy generated when the heat pump main body 7 operates is transmitted to the heat storage tank 9 through the heat supply pipeline for storage;

[0064] Heat energy output: When heat energy is needed, the heat energy in the heat storage tank 9 is transported to the user through the external heat output pipeline 12;

[0065] Heat energy return: The coolant (such as cold water or refrigerant) after being used by the user flows back to the heat pump main body 7 through the loop pipeline 14 to re-produce and store heat energy, forming a heat energy circulation loop.

[0066] Cold energy circulation:

[0067] Cold energy storage: The cold energy generated when the heat pump main body 7 operates is transmitted to the cold storage tank 10 through the cold supply pipeline for storage;

[0068] Cold energy output: When cold energy is needed, the cold energy in the cold storage tank 10 is transported to the user through the external cold output pipeline 13;

[0069] Cold energy return: The coolant (such as cold water or refrigerant) after being used by the user flows back to the heat pump main body 7 through the loop pipeline 14 to re-produce and store cold energy, forming a cold energy circulation loop. During the whole circulation process, the loop pipeline 14 plays a key connecting role, enabling the heat energy and cold energy to form a closed circulation system among the energy storage tank, the user, and the heat pump main body, realizing the efficient utilization and continuous supply of energy.

[0070] As a further improvement of this technical solution:

[0071] The surface evaporator 4 has an inverted V-shaped horn structure, which is convenient for forming a chimney effect and improving the natural upward force of the air; or it is an externally enclosed arc-shaped structure that gradually converges from bottom to top, and its external sunny side is covered with photovoltaic, solar thermal, or photovoltaic-thermal integrated components, thereby improving the space utilization rate and increasing the energy output; the installation position of the surface evaporator 4 forms a protective barrier for the wind blade 1 and the high-speed rotating impeller 3, and increases the climbing difficulty of the wind power column 5.

[0072] The interior of the wind power column 5 is provided with a thermal insulation layer, and the working medium pipeline is longitudinally arranged along its interior. That is, the interior of the wind power column 5 can serve as the space for the conveying pipeline of the working medium above and below the surface evaporator 4, which plays a role in protecting the working medium pipeline and is also more conducive to the thermal insulation of the working medium.

[0073] The electricity storage mechanism 8 is bidirectionally connected to the external power grid through the external circuit connecting cable 11, and is used to receive external power supplement or output electric energy to the outside. That is, it can transmit power outward and also extract power from the outside to enable the heat pump main body 7 to work.

[0074] The energy storage mechanism not only facilitates the reverse Carnot heat and cold conversion but also performs peak shaving for the operation of the surface evaporator 4, thereby improving the system operation efficiency. Its energy storage density, equipment cost, product life, and hidden conversion risk are far lower than those of the electricity storage equipment. At the same time, it belongs to the pre-solution of building requirements and will also reduce the power demand of the heat pump. It has a greater mass and is more stable, making it the most reasonable counterweight.

[0075] Specifically:

[0076] Reverse Carnot heat and cold conversion: The heat pump converts low-grade heat energy in the environment into high-grade heat energy or cold energy through the reverse Carnot cycle. This process enables the heat pump to provide heating or cooling respectively in different seasons and climate conditions.

[0077] Peak shaving function:

[0078] Storing excess energy: When the electric energy generated by wind power exceeds the current demand of the heat pump system, the energy storage part can convert the excess electric energy into heat energy or cold energy and store it. This helps to balance the volatility of wind power and avoid power surplus.

[0079] Releasing energy: When the wind power generation is insufficient or the heat pump system needs more energy, the energy storage part can release the previously stored heat energy or cold energy to meet the system's demand. This ensures the stable operation of the heat pump system and enables it to work properly even under insufficient wind power conditions.

[0080] Support for the surface evaporator 4: The surface evaporator 4 is a part of the heat pump system, and its efficiency is affected by air flow and temperature. The energy storage part ensures that the surface evaporator 4 has a stable energy supply and appropriate air flow conditions under different working conditions through the peak shaving function, thereby improving its working efficiency and performance.

[0081] This design makes the entire system more efficient and stable in energy utilization, can better adapt to the intermittency and volatility of wind power generation, and at the same time improves the reliability and economy of the heat pump system.

[0082] The heat pump main body 7 can provide a stable storage environment for the electricity storage space, reducing or even avoiding the electricity storage risk.

[0083] The rotational speed of the high-speed rotating impeller 3 is directly proportional to the wind force, synchronously driving the air flow speed of the surface evaporator 4, and without the need for additional power to drive the fan, improving the air circulation ratio inside the surface evaporator 4 (surface cooler).

[0084] The internal space of the wind power base 6 is hierarchically arranged with a heat pump main body 7, a power storage mechanism 8, and an energy storage mechanism, and the weight of the base and the total mass of the heat pump main body 7 and the energy storage mechanism together constitute the stability counterweight of the wind power equipment.

[0085] Embodiment 1

[0086] As Figure 1 shown, for the integrated wind power heat pump, when the wind force is sufficient, after ensuring that a reasonable amount of electric energy is reached in the power storage mechanism 8 device, the heat pump main body 7 is started, the high-speed rotating impeller 3 rotates at a high speed, and sufficient air flow passes through the surface evaporator 4 (surface cooler / evaporator). After forming cooling or evaporation, the heat pump main body 7 outputs or stores the heat energy in the heat storage tank 9 or the cold storage tank 10.

[0087] Embodiment 2

[0088] As Figure 1 shown, for the integrated wind power heat pump, when the wind force is insufficient and heating or cooling is required, it is powered by the generator 2 + the power storage mechanism 8 or connected to the external circuit cable 11 for power supply. The heat pump operates. At this time, the wind force is insufficient, the high-speed rotating impeller 3 rotates, and perhaps insufficient air flow passes through the surface evaporator 4 (surface cooler / evaporator) to form cooling or evaporation. When heating, the cold storage tank 10 is utilized; when cooling, the heat storage tank 9 is utilized, thus forming the efficient operation of the heat pump.

[0089] Embodiment 3

[0090] As Figure 4 shown, for the integrated wind power heat pump, when heating, according to the demand setting, power storage situation, current wind speed, historical data, day and night time, air pressure change, meteorological data, environmental temperature, environmental humidity, etc., data conditions are used to determine the start-stop time and start-stop duration of the heat pump, and the heat energy is stored. And according to the situation of the wind force, the cold energy that needs to be evaporated is passed through the surface evaporator 4 (surface cooler / evaporator) to form evaporation heat absorption, or the cold energy is stored in the cold storage tank 10.

[0091] Embodiment 4

[0092] As Figure 4As shown, for the integrated wind power heat pump, when refrigerating, according to the demand setting, power storage situation, current wind speed, historical data, day and night time, air pressure change, meteorological data, ambient temperature, ambient humidity, etc., the data situation is used to determine the start-stop time and start-stop duration of the heat pump, and the heat energy is stored for cold storage. And according to the wind force situation, the cold energy that needs to be evaporated is passed through the surface evaporator 4 (surface cooler / evaporator) to form condensation heat release, or the cold energy is stored in the heat storage tank 9.

[0093] The integrated wind power heat pump provided by the present invention is an important device for solving household energy. First of all, the electric energy generated by wind power has great instability, while all the electricity used by household electrical appliances must be stable and continuous, so the investment in the electric energy storage equipment of wind power is relatively large; the integrated wind power heat pump converts electric energy into heat energy or cold energy required by the family and stores it, greatly reducing the equipment investment in energy storage and the potential risk of fire in energy storage; by using the rotation of the blades formed by the wind force, the surface wind speed of the fins of the heat pump surface cooler is increased, avoiding the high-frequency noise of the traditional air source heat pump fan; at the same time, the surface cooler is installed on the column of the fan, reducing the installation space of the equipment, and making the most use of the space occupied by wind power and the value of the column; at the same time, the heat pump is installed on the base of the wind power, which not only solves the installation position of the wind power, but also provides considerable stability for the stability of the wind power.

[0094] At the same time,

[0095] The present invention combines the wind power generation equipment and the heat pump system into a set of systems, realizes the intelligent linkage of wind power and the heat pump system, and solves the problem of the mismatch between the volatility of wind power output and the load demand of the heat pump; combines the wind power generation equipment and the heat pump system into a set of systems, and uses the heat pump to directly convert electric power into heat or cold and store it locally, thereby effectively reducing the energy storage ratio of the wind turbine, and can output three sources of electricity, heat, and cold externally. At the same time, it can also use the output cable to transmit electricity back from other power grids to form an energy complementary mechanism; and constitutes an energy system combining wind power generation, electric energy storage, heat pump cold and heat double energy storage, environmental forecasting system and external network minimum power supplement, dynamically regulates energy distribution through an optimization algorithm, and on the basis of meeting the user's set requirements and environmental variable prediction, ensures the charge and discharge efficiency (80%-95%) of the energy storage battery, and realizes the maximization of the system comprehensive energy efficiency (COP).

[0096] Specifically,

[0097] Operation principle description

[0098] Basic principle:

[0099] As Figure 5The power regulation system 18 shown can use the wind power after voltage stabilization, filtering, compensation, etc. as the main power source; it can directly supply the heat pump 7 to operate, can also store electricity through an AC-DC inverter or a bidirectional energy storage inverter, and can also output electricity through a DC-AC inverter or a bidirectional energy storage inverter; when the stored electricity reaches the storage bottom line and the predicted future wind power is lower than the set ratio according to the historical data of the customer demand, the external circuit cable 11 is connected to supply power.

[0100] As Figure 5 shown, the heat pump 7 has multiple startup states:

[0101] Startup state 1 (surplus power energy storage mode): When the electricity storage reaches the peak value, when there is still surplus after the wind power continues to supply the user's energy consumption, and there is still space in the heat storage or cold storage equipment, the heat pump 7 starts;

[0102] Startup state 2 (power supply guarantee mode): When the heat storage or cold storage is lower than the customer-set warning line, and the stored electricity can meet the user's electricity consumption for 4 hours or 1.15 times of the user guarantee line, the normal electricity is used, more wind power is produced, and the heat pump is started;

[0103] Startup state 3 (triple balance mode): After the wind power is generated, the wind power is reasonably allocated for electricity storage, heat storage, and cold storage according to the customer settings, historical data, wind power rules, and future predictions;

[0104] Startup state 4 (redundancy elimination mode): When the heat storage or cold storage reaches the peak limit, the corresponding three-way valve is started to turn the heat or cold to the surface evaporator, and the high-speed rotating impeller is started to dissipate heat or cold;

[0105] Startup state 5 (bottom line mode): When the wind power is insufficient, the system will allocate electricity storage, heat storage, and cold storage purposefully according to the user's minimum demand design and historical energy consumption curve to meet the user's energy consumption demand to the greatest extent, so as to use external power to the minimum extent.

[0106] Startup state 6 (highest energy efficiency mode): Establish a quadratic function relationship model between the COP / EER (energy efficiency ratio) of the heat pump and the input power supply (current wind power wind, battery bat, predicted wind power wmd, external network grid), user model umd, and energy storage state (Sheat, Scold):

[0107] Energy efficiency ratio = f(W wind ,W bat ,W grid ,W wmd ,S umd ,S heat ,S cold )

[0108] Among them, the energy efficiency ratio is one of COP / EER;

[0109] Constraints:

[0110] The charge-discharge efficiency of the battery (80%-95%), and the capacity limit Sbat ∈ [20%, 95%];

[0111] The heat storage temperature Th ≤ 85°C or Th ≥ heat storage phase change point + 1.5 × supercooling degree;

[0112] The cold storage temperature Tc ≥ 5°C or Th ≤ cold storage phase change point + 1.5 × supercooling degree to avoid phase change or equipment damage.

[0113] Startup state 7 (minimum external network mode): By minimizing the external network power consumption function:

[0114] max(COP / EER - λ 1 W grid -λ 2 ∣T h -T h,set ∣-λ 3 ∣T c -T c,set ∣)

[0115] where the COP / EER is one of them, and the model predictive control (MPC) or dynamic programming algorithm is used to solve, giving priority to using wind power and energy storage to minimize the external network power consumption.

[0116] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and without departing from the purpose of the present invention creation, and design similar structural manners and embodiments to this technical solution without creative work, they should all fall within the protection scope of the present invention.

Claims

1. Integrated wind power heat pump, characterized by: It includes a wind mechanism, a power generation mechanism, a surface evaporator, a heat pump body, a power storage mechanism and an energy storage mechanism; The wind power mechanism comprises a fan blade, a wind power column and a fast-rotating impeller, wherein the fan blade is fixed on the top of the wind power column, and the fast-rotating impeller is located below the fan blade and is coaxially connected to the wind power mechanism; The power generation mechanism includes a generator integrated at the top of the wind power column, the generator is mechanically connected to the wind blades to convert wind energy into electrical energy; The surface evaporator is fixed on the surface of the wind power column, and a working medium pipeline is arranged inside the surface evaporator, and is connected with the heat pump body through the internal space of the wind power column; The heat pump body is arranged inside the wind power base and connected to the generator through a power line; The power storage mechanism is arranged inside the wind power base, electrically connected to the generator and the heat pump body, and is used to store and adjust the output of electric energy; The energy storage mechanism includes a heat storage tank and a cold storage tank, which are arranged inside the wind turbine base and are connected to the heat pump body through a heating pipe and a cold supply pipe respectively, and are provided with an external heat transmission pipe and an external cold transmission pipe, and a loop pipe is also provided to form a circulation loop.

2. The integrated wind power heat pump according to claim 1, characterized in that: The surface evaporator is installed on the wind turbine trunk, and has an inverted V-shaped trumpet-shaped structure or an external closed arc-shaped structure that gradually converges from bottom to top or a cylindrical structure. It is covered with a protective layer, and its sunny side is equipped with photovoltaic, solar thermal or photovoltaic solar thermal integrated components; the installation position of the surface evaporator forms a protective barrier for the wind blades and fast-rotating impellers, and increases the difficulty of climbing the wind turbine columns.

3. The integrated wind power heat pump according to claim 1, characterized in that: The wind power column is provided with a heat-insulating layer inside, and the working fluid pipeline is arranged longitudinally inside.

4. The integrated wind power heat pump according to claim 1, characterized in that: The power storage mechanism is bidirectionally connected to the external power grid via an external circuit cable, and is used to receive external power supplement or output electric energy to the outside.

5. The integrated wind power heat pump according to claim 1, characterized in that: The rotation speed of the fast-rotating impeller is directly proportional to the wind force, and the air flow speed of the surface evaporator is synchronously driven without the need for additional electric power to drive the fan.

6. The integrated wind power heat pump according to claim 1, characterized in that: The heat pump body, the power storage mechanism and the energy storage mechanism are arranged in layers in the internal space of the wind power base, and the weight of the base and the total mass of the heat pump body and the energy storage mechanism together constitute the stability counterweight of the wind power equipment.

7. The integrated wind power heat pump according to claim 1, characterized in that: Integrate wind power generation equipment and heat pump system into one system to realize intelligent linkage between wind power and heat pump system, so as to solve the problem of mismatch between wind power output volatility and heat pump load demand.

8. The integrated wind power heat pump according to claim 1, characterized in that: Heat pumps are used to convert electricity directly into heat or cold and store it on-site, thereby effectively reducing the energy storage ratio of wind turbines. The system outputs electricity, heat and cold to the outside world, and also uses output cables to transmit electricity back from other power grids, forming an energy complementary mechanism.

9. The integrated wind power heat pump according to claim 1, characterized in that: It constitutes an energy system that combines wind power generation, electric energy storage, heat pump dual energy storage, environmental forecasting system and minimum power supplement from the external grid. It dynamically controls energy distribution through optimization algorithms. On the basis of meeting user-set requirements and environmental variable predictions, it ensures that the charging and discharging efficiency of the storage battery is between 80% and 95%, thereby maximizing the overall energy efficiency of the system.

10. The integrated wind power heat pump according to claim 9, characterized in that: The optimization algorithm includes a model predictive control or a dynamic programming algorithm. According to the current wind power, battery status, predicted wind power, user model and storage status parameters, wind power and energy storage are used preferentially to minimize external grid power consumption, while considering the constraints of battery charging and discharging efficiency and heat storage / cold storage temperature limit to ensure stable operation and high energy efficiency of the system.

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