1212 results about "Air source heat pumps" patented technology

The invention provides an air source heat pump heating method and system, and relates to the technical field of heat pump system thermal control, and the method comprises the steps: collecting evaporator surface frost layer thickness, environment temperature and humidity parameters in real time, inputting the parameters to a pre-trained neural network algorithm model, and identifying a frosting rate by analyzing a multi-factor nonlinear relation; predicting a future frosting development trend, and outputting frosting thickness increase prediction and severity degree results; and according to the frosting thickness increase prediction and the severity degree result, reverse circulation defrosting is started in advance when the frost layer does not reach the critical thickness, and optimal control over the defrosting process is achieved by adjusting the opening degree of the four-way valve and the rotating speed of the draught fan, so that the system state after defrosting is obtained. The energy efficiency of the system is improved, and the heating comfort is optimized.

An automatic control system of an air source heat pump analyzes collected multi-dimensional operation parameters in real time based on a machine learning algorithm, constructs a high-precision thermal load prediction model, predicts thermal load requirements in the future 1-24 hours, controls prediction errors within 5%, and achieves minimization of energy consumption and maximization of heat storage efficiency on the premise of meeting operation constraints. The overall energy consumption is reduced by 15%-25% compared with that of a traditional system, the heat loss is reduced by dynamically adjusting the flow of a heat storage medium and optimizing the thermodynamic process of heat storage and heat release, and the heat storage efficiency is improved by 10%-15%. According to the invention, the advanced machine learning algorithm is adopted through the big data analysis module, the multi-dimensional operation parameters are analyzed in real time, a high-precision thermal load prediction model is constructed, the thermal load demand in the future 1-24 hours is predicted, and the prediction error is controlled within 5%.

The invention discloses a temperature and humidity cooperative control method for an air source heat pump drying room, and relates to the technical field of energy conservation, environmental protection and intelligent manufacturing. The method comprises the following steps: acquiring gas heat state parameters and material and environment characteristic parameters in an air source heat pump drying room, and constructing a multi-source state vector; calculating a dynamic response coefficient group and a material evaporation influence coefficient based on continuous sampling data, and establishing a cross response model; a control compensation signal is generated and corrected according to the disturbance estimator, and the comprehensive control quantity is input into an execution module of the air source heat pump system; a dynamic response coefficient group and a lag correction parameter are updated through a periodic feedback data set, and dynamic coordination between temperature and humidity variables is achieved; the response stability of temperature and humidity control can be maintained under the condition that the material moisture content, the stacking density and the external environment condition change, system oscillation and energy consumption deviation are reduced, and the energy efficiency level of the air source heat pump drying process and the product drying uniformity are improved.

The invention discloses a heat allocation system based on a heat pump. The heat allocation system comprises a water tank; a water source heat pump; an air source heat pump; a cooling tower; a cooling water circulation system; a hot water circulation system; a chilled water circulation system; an exhaust heat recovery system; wherein the water tank, the water source heat pump, the air source heat pump, the cooling tower, the cooling water circulation system, the hot water circulation system, the chilled water circulation system and the exhaust heat recovery system are connected with one another to realize heat allocation, especially heat allocation of a coating pretreatment electrophoresis production line of a vehicle body or parts forming the vehicle body; according to the system, heat generated when the heat pump / refrigerating unit produces chilled water and / or heat taken away in exhaust air can be recycled and used for heating the heat using tail end. Therefore, the heat which is wasted originally can be fully utilized, the energy consumption is reduced, and the utilization efficiency of energy is improved.

The invention discloses a composite joint control method based on a frequency conversion air source heat pump system, and relates to the technical field of air source heat pump systems, and the method comprises the steps: building an HPF control framework, building a multi-input and single-output control model through machine learning, and coupling a PID feedback signal to generate a composite control basic signal; building load single-step forward prediction is carried out by adopting an LSTM neural network, and a building load prediction value is output through training and calculation of the neural network; the heat pump compressor is subjected to staged joint control; forward control is carried out on the load side circulating water pump; a differential switching mechanism is arranged, and water supply temperature deviation is monitored in real time. According to the variable-frequency air source heat pump composite joint control strategy, an HPF control framework, a compressor staged joint control and differential switching mechanism, load side water pump forward control and equipment cooperative linkage are integrated, model dynamic updating and switching parameter optimization are introduced, and the limitation of a traditional single control mode is broken through.

A system for generating steam for industrial heat. The system may include a plurality of heat pump cycles in thermal communication with each other and in thermal communication with a steam generation cycle. The plurality of heat pump cycles may include first and second heat pump cycles. The first heat pump circulates a first a working fluid and includes a first heat exchanger. The second heat pump cycle circulates a second working fluid and includes a second heat exchanger. The first heat exchanger transfers heat from the first to the second working fluid. The second heat exchanger transfers heat to a third working fluid in the steam generation cycle.

The invention provides an air source heat pump unit with an intelligent defrosting function, and belongs to the technical field of heat pump units. Comprising a unit box, the two ends of the inner side of the unit box are fixedly connected with fixing plates, the tops of the two fixing plates are fixedly connected with the same evaporator, the bottom of the evaporator fixedly communicates with a discharge pipe, and the bottoms of the two fixing plates are fixedly connected with the same fixing seat. By arranging the temperature sensor, the flow dividing valve, the air pipe, the defrosting spray head and the flow blocking cover, when the temperature sensor detects that the temperature of the outer side of the evaporator is lower than a certain degree, part of hot steam output downwards from the interior of the connecting pipe is divided through the flow dividing valve, and then the hot steam is sprayed out of the evaporator through the air pipe and the defrosting spray head; and hot steam is guided through the flow blocking cover to flow on the outer side of the evaporator, a frost layer condensed on the outer side of the evaporator is automatically eliminated, the intelligent defrosting effect of the device is achieved, and the practicability of the device is improved.

The invention relates to the field of electric power systems, in particular to an energy storage dynamic optimization scheduling method and system of an electric power system and a storage medium, and the method comprises the steps: S1, building an energy storage dynamic calculation model; s3, energy consumption models of a water chilling unit, an air source heat pump, a water pump and a cooling tower are established respectively, and instantaneous energy consumption under different working conditions is calculated by considering operation working conditions and environmental parameter correction; and S4, outputting the utilization rate, the maximum adjusting power, the average adjusting power, the maximum adjusting capacity proportion and the accumulative adjusting electric quantity proportion of the energy storage device, and carrying out quantitative evaluation. According to the method, supply and demand state changes such as valley load, flat load, peak load, peak load and the like of the power system can be identified in real time / quasi-real time, the time periods and power of energy storage and energy release are adjusted, dynamic power distribution of a host in each load time period is realized, and the overall energy efficiency level and operation stability of the system are improved.

The invention relates to the field of control methods, in particular to an operation control method and electronic equipment based on air source heat pump load rate optimization, and the control method comprises the following steps: calculating and judging whether the obtained heat pump unit load rate Li is less than or equal to 1; the unit energy efficiency COPLi in the frostless state is calculated; whether the evaporation temperature Tei meets the Tilt or not is judged; td, Tilt, Td, Tilt; 0; calculating a defrosting correction coefficient Fi, wherein Fi = (Qi-Qd) / Wi / COPLi; calculating and recording the comprehensive energy efficiency COPci of the heat pump unit, wherein COPci = COPLi * Fi; whether i is equal to the maximum number n of the units is judged, the maximum value is selected according to the multiple COPci obtained through program loop calculation, and therefore the optimal starting number of the system is determined. The number of started units is subjected to loop iteration, and the influence of unit load rates and frosting on energy efficiency under the condition of different numbers of started units is calculated, so that a more accurate comprehensive energy efficiency calculation result is obtained. The optimal number of started units is determined by comparing the maximum values of the comprehensive energy efficiency of the units under the condition of different numbers of started units, so that the comprehensive energy efficiency of the units can be remarkably improved, and the purpose of saving energy is achieved.

The invention discloses an air source heat pump unattended control method and system, and relates to the field of equipment control, and the method comprises the steps: predicting a load demand according to an environment parameter and a building load parameter, and calculating a target water supply temperature based on the load demand; sorting the heat pump units according to the equipment operation duration parameters, distributing a temperature deviation value for each heat pump unit, and calculating the target water supply temperature and the temperature deviation value corresponding to the heat pump unit to obtain the personalized set temperature of each heat pump unit; a starting instruction sequence is generated according to a preset starting condition and the personalized set temperature, and after the water return pressure parameter reaches a preset parameter threshold value after the circulating water pump is started, all the heat pump units are sequentially started according to the personalized set temperature sequence; and a make-up pump and a pressure release valve are controlled according to the return water pressure parameter and the liquid level parameter, and the temperature deviation value of each heat pump unit is adjusted according to the change of the environment parameter and the building load parameter. By implementing the method, the balance of equipment loads in the multi-unit system can be improved.

The invention provides an air source heat pump system. The air source heat pump system comprises a compressor, a fin heat exchanger, a shell tube heat exchanger and a gas-liquid separator, wherein the shell tube heat exchanger comprises a gas tube, a liquid tube, a heat exchange tube and a liquid separating device, the air source heat pump system further comprises a four-way valve, the four-way valve is correspondingly communication with the compressor, the gas-liquid separator, the fin heat exchanger and the gas pipe, the fin heat exchanger is in communication with the liquid separating device through a orifice plate and a first one-way valve; the fin heat exchanger is in communication with the liquid tube through an expansion valve and a second one-way valve; the first one-way valve is used for the one-way conduction of the fin heat exchanger to the liquid separating device; the second one-way valve is used for the one-way conduction of the liquid pipe to the fin heat exchanger. By the adoption of the system, a liquid storage device of the liquid refrigerant does not need to be added in the system, so that the cost is saved; a large amount of liquid refrigerant cannot flow back to the compressor after defrosting is finished; during the refrigeration mode, the refrigerant running shell pass does not need to be subjected to suction superheat, so that the air suction pressure and the operation efficiency of the refrigeration mode are improved; and the overall use valve of the system is less, and the reliability is high.

The invention discloses an air source heat pump control method and device for a magnetic suspension refrigeration compressor. Adjusting deviation mapping is generated by constructing a temperature response curve and a load demand curve and executing relevance evaluation, an out-of-tolerance mismatch window is detected, and load sudden change characteristics are extracted to determine an adjusting period; positioning an overlapping section in an adjusting period, establishing a refrigerant flow distribution grid to identify a cooperative constraint degree, executing resource conflict identification, marking conflict positions, generating comprehensive weights, and arranging the comprehensive weights in a descending order to form a scheduling sorting table to recombine a compressor operation time sequence; adjusting capacity is preset and fused with a temperature response curve to form an adjustable power range, an area with insufficient margin is identified, margin compensation parameters are generated, and a dynamic adjusting limit is determined; the method comprises the following steps: performing time sequence splitting on environment temperature change based on a dynamic adjustment limit to generate a sudden change component and a slow change component, respectively generating a compressor speed regulation sequence and a heat exchanger adjustment sequence, fusing and establishing a control instruction, and realizing supply and demand accurate matching, resource conflict resolution and dynamic response optimization.

The invention relates to the technical field of heat pumps, in particular to an air source heat pump unit and a control method of the air source heat pump unit, the air source heat pump unit comprises a unit body, the unit body comprises a first heat exchanger, and a heat absorption channel of the first heat exchanger is provided with a first bypass port and a second bypass port; the circulating heating device comprises a second heat exchanger, a water outlet pipe and a water return pipe, the first bypass opening communicates with an inlet of a heat absorption channel of the second heat exchanger through the water outlet pipe, and an outlet of the heat absorption channel of the second heat exchanger communicates with the second bypass opening through the water return pipe. The circulating heating device serves as an external device of the unit body, it can be guaranteed that an internal water system can be subjected to temperature rise protection in time under the condition that the unit body stops, the unit body is protected against damage caused by freezing of the water system under the extreme condition, anti-freezing operation does not need to be conducted on the unit body under the specific starting condition, and temperature rise anti-freezing is conducted on the water system; the reliability of the air source heat pump unit is enhanced, and user loss is reduced.

The invention discloses an air energy-soil composite heat pump cross-seasonal energy storage and winter combined heating system and an application method, and relates to the technical field of building energy conservation. Comprising the following steps: acquiring quantitative data of heat unbalance; when a heat unbalance phenomenon exists, determining a soil initial temperature and a maximum rising temperature before heat compensation, and calculating a heat compensation amount; determining a heat compensation operation time period and a system type selection of an air source heat pump; determining an initial rising temperature, a heat compensation initial investment and a preset age limit; the operation cost is determined, when the number of times of heat compensation is larger than a preset year limit, the sum of the initial investment of heat compensation and the operation cost within the preset year limit is recorded, and when it is detected that the total soil temperature increasing value is not lower than the maximum temperature increasing value, the air source heat pump system is determined again; and the strategy with the minimum operation cost and the minimum initial heat compensation investment is used as the optimal soil heat compensation strategy. The system obviously improves the utilization rate of renewable energy sources, and has the advantages of high energy efficiency, wide adaptability and low whole life cycle cost.

This invention discloses a coordinated control method for a heating system based on air source heat pumps and building heat exchange units, comprising: setting up a composite heating system consisting of air source heat pump units, building heat exchange units, heating pipe networks, and buildings, and establishing a digital twin model of the composite heating system; based on the time-period heat load forecast values ​​of each building, peak-valley electricity pricing strategies, and the time-period heating capacity range of the air source heat pump units, with the objective function of minimizing the comprehensive heating cost of each building, solving for the optimal heating mode of the composite heating system for each building in each time period and the optimized load ratio of the air source heat pump units and building heat exchange units under the composite heating mode; establishing a supply and return water temperature control model for the air source heat pump units and a pump and valve control model for the building heat exchange units to obtain the control strategies of the air source heat pump units and building heat exchange units under the corresponding heating modes.

The invention relates to the technical field of air source heat pump unit control, and discloses a control method for an air source heat pump unit. The method comprises the following steps: acquiring environment temperature and humidity data in real time, and performing noise filtering and time synchronization; generating a temperature prediction sequence based on the sliding window and the LSTM model; fluctuation characteristics are extracted through an optimization algorithm, and compressor control signals are generated; estimating the thickness of a frost layer in combination with a thermodynamic model and dynamically generating a defrosting instruction; closed-loop control parameters are generated through normalization processing and weight distribution; and finally, a system execution command is generated through multi-objective optimization, and compressor regulation and control and system health monitoring are achieved. The unit operation efficiency can be improved, the energy consumption can be reduced, and the defrosting control accuracy and the system stability can be enhanced.

A vehicle thermal management system includes a heat pump system, a coolant loop that transfers heat energy between a battery and a cabin heating, ventilation, and air-conditioning (HVAC) module. The heat pump system can be an air-source heat pump or coolant-based heat pump with a water condenser. The coolant loop includes a low-temperature cooling system that rejects coolant heat to the ambient environment through a radiator. The cabin HVAC module includes a blower, a vent door, a cabin heater, and an evaporator. The coolant loop of the thermal management system includes an electric water pump, a chiller, a cabin heat exchanger, a three-way valve, and a one-way valve. The vehicle thermal management system can take advantage of a temperature difference between cabin exhaust air and battery coolant for heating and cooling, which reduces system power consumption.

The invention relates to the technical field of air source heat pump control, and discloses an air source heat pump defrosting control method. According to the method, a frosting risk index and a trigger threshold are dynamically calculated through multi-sensor real-time data fusion processing; the defrosting effect is evaluated based on the defrosting process monitoring data, and defrosting duration parameters are adjusted in a self-adaptive mode; and finally, accurate triggering and termination of the defrosting control process are achieved by optimizing termination threshold judgment and system closed-loop feedback updating. The defrosting control accuracy and the system operation efficiency are effectively improved, the energy consumption is reduced, and the operation stability and reliability of the heat pump system are guaranteed.

The invention relates to the technical field of air source heat pumps, and discloses a wind-solar complementary air source heat pump integrated system which comprises a hardware device, an active frost suppression module and a predictive optimization scheduling control system. The control system can collect internal and external state data of the system and quantitatively calculate frosting risk indexes of the evaporator in all time periods in the future based on future environment temperature and humidity predicted values. According to the method, the hardware device is connected with the active frost suppression module, a dynamic decision is made according to the frosting risk index, when it is judged that the future frosting risk exceeds a preset threshold value, the active frost suppression module is started in advance, photovoltaic heat recovery warm water stored in the hardware device is used for preheating air entering an evaporator, and frosting is actively suppressed from the source. By means of predictive active frost suppression, a traditional passive and high-energy-consumption defrosting mode is replaced, the operation efficiency and heating stability of the heat pump system in the wet and cold environment are remarkably improved, and comprehensive and efficient utilization of energy is achieved.

The utility model relates to the technical field of heat pumps, and discloses an energy-saving air source heat pump which comprises a heat pump body. The heat pump main body comprises a shell, and an evaporator, a compressor and a condenser are arranged in the shell; a through hole is formed in the side wall, close to the evaporator, of the shell, a dustproof barrel is fixedly arranged on the side wall, on the outer side of the through hole, of the shell, the other end of the dustproof barrel inclines downwards towards the side close to the shell, a grating plate is arranged in the dustproof barrel, and an exhaust fan is arranged on the side, close to the through hole, in the shell. Compared with the prior art, the heat exchanger has the advantages of being high in heat utilization rate, good in dustproof effect and more energy-saving.

The invention relates to a low-temperature efficient heating air energy heat pump unit, discloses a low-temperature efficient heating air energy heat pump unit, and belongs to the technical field of heat pump air conditioners. The unit is composed of a compressor, an evaporator, a condenser, a throttling valve, a defrosting module, a refrigerant adjusting module and a control unit. The surfaces of fins of the evaporator are coated with polytetrafluoroethylene modified hydrophobic frost-resistant coatings, and the frosting amount can be inhibited by 60% or above; the defrosting module adopts a bypass coupling scheme of a 500-800W electric heating wire and a high-temperature refrigerant, and the defrosting time is less than or equal to 8min and is shortened by 30% compared with a traditional scheme; the refrigerant adjusting module dynamically adjusts the refrigerant temperature of an inlet of the evaporator through the bypass electromagnetic valve and the refrigerant mixing cavity, so that the compressor still maintains 100% of the rotating speed at-25 DEG C without frequency reduction, the COP is larger than or equal to 2.0, and the heating capacity is kept 75% or above of the normal temperature value. The system solves the industrial problems of frequent frosting, high defrosting energy consumption and large heating attenuation under the low-temperature and high-humidity working conditions, and can be widely applied to heating systems in household, commercial and high-humidity and low-temperature areas.

The present disclosure discloses an optimal operation control method of the air-source heat pump and gas-fired heater combined heating system, including constructing a mathematical model of the air-source heat pump and gas-fired heater combined heating system to simulate real time energy consumption; determining a comprehensive evaluation index system of the combined heating system, including primary evaluation indexes of energy conservation, environmental protection and economical efficiency, and secondary evaluation indexes of EER, clean energy utilization rate, carbon dioxide emission and operation cost; calculating indexes through an analytic hierarchy process and then constructing a comprehensive objective function, to determine operation mode when the comprehensive objective function is the maximum by taking the priority of meeting the heating requirement as a principle, so as to achieve the purpose of optimizing the combined heating system, and achieve the combined heating system efficient, energy-saving and environmental protection.

The invention relates to a loading and unloading control technology for multi-unit combined operation, and discloses a method for controlling loading and unloading of compressors among multiple modules of an air source heat pump water heater, which realizes intelligent, efficient and balanced loading and unloading control of the compressors among the multiple modules. The loading and unloading areas are divided by presetting adjustable temperature difference parameters, the frequency variation of the compressor is calculated based on the difference value between the set water temperature and the actual water temperature and the water temperature change rate, differential loading and unloading adjustment is conducted on the compressor in different load states in combination with the operation state of each module, it is preferentially guaranteed that the compressor operates at the optimal frequency, and the working efficiency is improved. Advanced loading of a new module and preferential unloading of a high-frequency module are achieved, and finally intelligent, efficient and balanced loading and unloading control over compressors among multiple modules is achieved.

The utility model discloses an air source heat pump unit with noise reduction and sound insulation, which relates to the technical field of air source heat pump units and comprises a front cover component and an air source heat pump body, the air source heat pump body is mounted in the front cover component, one side of the front cover component is connected with a movable plate, and a base component is mounted at the bottom of the front cover component. The back side of the front cover assembly is connected with a back plate assembly, and wall hanging pieces are symmetrically installed on the side, away from the front cover assembly, of the back plate assembly up and down. According to the air source heat pump unit with the noise reduction and sound insulation functions, the noise reduction pad and the damping plate are arranged on the inner wall of the front cover body, meanwhile, the noise reduction net rack is installed on the surface of one side of the back plate main body, and the movable plate is matched for combined use, so that the noise reduction and sound insulation functions can be provided for operation of the air source heat pump main body as much as possible, and noise pollution caused by device operation is reduced; in addition, through the use of the base assembly and the wall hanging piece, the whole device can be selectively fixed to the wall or the ground according to use requirements.

The invention relates to an air source heat pump fan speed regulation control method and device and computer equipment, and can be applied to the technical field of air source heat pumps. The method comprises the steps that the environment temperature is divided into a plurality of temperature intervals, and the current environment temperature of the air source heat pump is obtained; determining a temperature interval corresponding to the current environment temperature; based on the temperature interval corresponding to the current environment temperature, the preset maximum rotating speed, corresponding to the temperature interval, of the draught fan is obtained, and the preset maximum running frequency, corresponding to the temperature interval, of the compressor is obtained; according to the actual operation frequency of the compressor and the preset maximum operation frequency, the frequency proportion coefficient of the compressor is determined; and according to the preset maximum rotating speed and the compressor frequency proportion coefficient, the target rotating speed of the fan is determined. By adopting the method, the operation efficiency of the air source heat pump can be improved.

The invention discloses a five-constant system capable of intensively controlling and processing indoor environment, which belongs to the technical field of indoor environment regulation and control, and comprises an indoor unit body arranged indoors, a plurality of partition plates are arranged in the indoor unit body, and the indoor unit body is divided into an air return cavity, a cold and hot water heat exchange cavity, a fresh air heat exchange cavity, a mixed air heat exchange cavity and an air supply cavity; an air return opening and an air supply opening are formed in the upper end of the indoor unit body. A fresh air opening and an exhaust air opening are formed in one side of the indoor unit body. A return air filter is arranged in the return air cavity, a circulating pump and an efficient tank are arranged in the cold and hot water heat exchange cavity, a fresh air fan is arranged in the fresh air heat exchange cavity, a plate exchange module is arranged in the mixed air heat exchange cavity, and an air supply fan, a plate exchange evaporator and a filter element are arranged in the air supply cavity. And the outdoor air source heat pump is connected with the efficient tank. Indoor refrigeration is achieved through the all-air system and the ground cold radiation system in summer, indoor heating is achieved through the all-air system and the ground heating radiation system in winter, and then the five-constant index requirement is met.

The invention relates to an air source heat pump water system, in particular to a control method of the air source heat pump water system and the air source heat pump water system, and aims to solve the problem that frequent shutdown is easily caused by instantaneous rise of high pressure during heating of an existing air source heat pump water system. In order to achieve the purpose, the control method comprises the steps that in a heating mode, a high-pressure side parameter value is obtained; and when the high-pressure side parameter value is increased in the preset adjusting interval, the frequency of the compressor is controlled to be reduced or unchanged, and the rotating speed of the outdoor fan is controlled to be reduced. When the high-pressure side parameter value falls into the preset adjusting interval and continues to rise, it is proved that the system has the risk that the high-pressure pressure is instantaneously too high, due to the fact that the instantaneous high-pressure pressure duration time is short, the rotating speed of the outdoor fan is controlled to be reduced while the frequency of the compressor is controlled to be forbidden to rise, and the system can be effectively operated while it is guaranteed that the system operates effectively. And instant overhigh pressure of the high pressure can be timely handled, so that frequent shutdown of the system is avoided.

The invention discloses a dispersed exhaust air source heat pump centralized heat recovery system based on gas-to-gas heat exchange, and relates to the technical field of exhaust air heat recovery, the system comprises an intelligent control module, the intelligent control module comprises a parameter monitoring unit, a working condition matching unit and an execution regulation and control unit, the parameter monitoring unit sets an initial monitoring frequency according to position distribution and exhaust characteristics of exhaust points of different functional areas and collects environment parameters, flow parameters and pollutant concentration parameters of the exhaust points, the working condition matching unit generates a working condition adjusting instruction, and the execution regulation and control unit executes regulation and control according to the working condition adjusting instruction. And outputting a regulation and control signal to modify the corresponding equipment working parameters. By installing the intelligent control module, the function of dynamically adjusting the heat exchange process and the operation state of the heat pump according to exhaust parameters is achieved, the problems that a traditional system is lagged in regulation and control and poor in parameter matching performance are solved, and the response speed and regulation and control precision of the heat recovery system are improved.

The invention provides an air energy heat pump direct current motor intelligent speed regulation method and system based on self-adaptive fuzzy control. The method comprises the steps of obtaining original operation data; extracting dynamic characteristics of a short-time window from the original operation data set, and calculating to obtain a thermal load trend index; constructing a fuzzy controller, wherein the fuzzy controller comprises fuzzification, rule reasoning and defuzzification output; in the fuzzification, a thermal load trend index is mapped into a five-level fuzzy level by adopting a triangular membership function; combining the thermal load trend index with an operation mode to calculate a target wind speed; and the target wind speed is converted into a control signal, feedback data is collected after each regulation and control period is finished, a performance deviation index is constructed based on the feedback data, and correction parameters are output. According to the invention, a resonance frequency point avoidance mechanism and a voltage margin correction strategy are embedded, so that the system is kept stable, low in noise and high in efficiency under high-speed, low-speed or medium-speed operation conditions.

An air source heat pump system is sequentially connected through refrigerant pipelines to form a closed cycle, used for achieving the refrigerating or heating function, configured to detect the outdoor environment temperature in real time and output environment temperature signals, arranged on the surface of an evaporator and configured to detect the surface temperature of the evaporator in real time and output surface temperature signals. The controller is configured to detect the relative humidity of outdoor air and output a humidity signal, the controller is electrically connected with the environment temperature sensor, the evaporator temperature sensor and the humidity sensor, the controller comprises a memory and a processor, the memory stores a dynamic defrosting control program, and the processor is used for processing the dynamic defrosting control program. The processor executes the program to dynamically calculate the frost layer generation rate according to the environment temperature, the evaporator surface temperature and the relative humidity and adaptively adjust defrosting control parameters based on the frost layer generation rate. The system supports the three modes of electric heating defrosting, hot air defrosting and combined defrosting, and the optimal mode is intelligently selected according to the environmental conditions.