A ground source heat pump energy station and a regulation method thereof

Abstract

The application discloses a kind of ground source heat pump energy station regulation and control methods, comprising: monitoring system detects whether outdoor temperature condition meets the condition of not energy-consuming cooling or heating or indoor actual air conditioning temperature meets the requirement, when not meeting any of the above conditions, switch to ground source heat pump unit to carry out cooling or heating;Monitoring system collects and sets the water supply temperature of user-side circulation system according to outdoor temperature, and verifies whether the water supply temperature meets the requirement;When water supply temperature meets the requirement, monitoring system sets the operating frequency of circulating pump;Based on water supply temperature and operating frequency, the system energy efficiency ratio is obtained, and whether the system energy efficiency ratio meets the requirement is verified;When system energy efficiency ratio meets the requirement, monitoring system stores optimal water supply temperature and optimal operating frequency, and carries out real-time display.The problem that prior art cannot minimize the actual energy consumption of ground source heat pump energy station under the premise of meeting indoor air conditioning load is solved.

Description

Technical Field

[0001] This invention relates to the field of ground source heat pump technology, and more specifically to a ground source heat pump energy station and its control method. Background Technology

[0002] Currently, ground source heat pumps are highly efficient, energy-saving, and environmentally friendly air conditioning systems that utilize shallow geothermal resources for both heating and cooling. Ground source heat pump technology represents a typical application of geothermal energy, a renewable energy source, in the building sector. By inputting a small amount of high-grade energy (electricity), ground source heat pumps can transfer energy from a low-temperature heat source to a high-temperature heat source. In winter, heat is extracted from the soil, raised, and supplied to the interior for heating; in summer, heat is extracted from the interior and released back into the soil, ensuring a balanced underground temperature throughout the year.

[0003] However, conventional ground source heat pump energy station design schemes mainly address the basic cooling and heating needs of building interiors, without considering the dynamic energy saving of ground source heat pump energy stations. They cannot minimize the actual energy consumption of ground source heat pump energy stations while meeting indoor air conditioning loads.

[0004] Therefore, minimizing the actual energy consumption of a ground source heat pump energy station while meeting indoor air conditioning load requirements is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a ground source heat pump energy station and its control method. By dynamically following the load of indoor air conditioning terminals, the ground source heat pump energy station achieves closed-loop control and dynamic monitoring of the intelligent operation system of the ground source heat pump energy station, solving the problem that the existing technology cannot minimize the actual energy consumption of the ground source heat pump energy station while meeting the indoor air conditioning load.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A method for regulating a ground-source heat pump energy station, comprising:

[0008] The monitoring system detects whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, or whether the actual indoor air conditioning temperature meets the requirements. When the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating, or the actual indoor air conditioning temperature does not meet the requirements, the system switches to a ground source heat pump unit for cooling or heating.

[0009] The monitoring system collects and sets the water supply temperature of the user-side circulation system according to the outdoor temperature, and verifies whether the water supply temperature meets the requirements.

[0010] When the water supply temperature meets the requirements, the monitoring system sets the operating frequency of the circulating pump;

[0011] The system energy efficiency ratio is obtained based on the water supply temperature and the operating frequency, and it is verified whether the system energy efficiency ratio meets the requirements.

[0012] When the system energy efficiency ratio meets the requirements, the monitoring system stores the optimal water supply temperature and the optimal operating frequency and displays them in real time.

[0013] Preferred options also include:

[0014] When the monitoring system detects that the outdoor temperature conditions meet the requirements for energy-free cooling or heating, it switches to direct heat exchange operation of the heat exchanger and verifies whether the requirements are met by checking the actual indoor air conditioning temperature.

[0015] Preferably, the verification of whether the water supply temperature meets the requirements specifically includes: after setting the water supply temperature of the user-side circulation system, verifying whether the water supply temperature meets the requirements by detecting whether the actual indoor air conditioning temperature reaches the preset standard; if not, adjusting the water supply temperature until the requirements are met.

[0016] Preferably, setting the operating frequency of the circulation pump specifically includes setting the operating frequency of the user-side circulation pump and the operating frequency of the geostationary circulation pump.

[0017] Preferably, the monitoring system sets the operating frequency of the circulating pump, specifically including:

[0018] The monitoring system adjusts and sets the operating frequency of the user-side circulation pump based on the pressure difference between the water supply and return on the user side.

[0019] The monitoring system adjusts the operating frequency of the ground source side circulation pump based on the temperature difference between the supply and return water on the ground source side.

[0020] Preferably, the monitoring system for setting the operating frequency of the circulating pump further includes:

[0021] The monitoring system verifies whether the operating frequency of the user-side circulating pump meets the requirements by detecting the temperature difference between the supply and return water of the user-side circulating water system.

[0022] The monitoring system verifies whether the operating frequency of the ground source-side circulating pump meets the requirements by measuring the ground temperature field limit of the ground source-side buried pipe heat exchanger system.

[0023] Preferably, the step of obtaining the system energy efficiency ratio based on the water supply temperature and the operating frequency specifically includes:

[0024] The total heating or cooling capacity on the user side is obtained based on the water supply temperature.

[0025] The active power of the circulating pump is obtained based on the operating frequency of the household-side circulating pump and the operating frequency of the ground source-side circulating pump, and the active power of the ground source heat pump unit is also obtained. The active power of the circulating pump and the active power of the ground source heat pump unit constitute the total active power.

[0026] The ratio of the total heating or cooling capacity supplied to the total active electrical energy on the user side represents the system's energy efficiency ratio.

[0027] Preferably, verifying whether the system energy efficiency ratio meets the requirements specifically includes:

[0028] The monitoring system verifies whether the system's energy efficiency ratio is lower than the historical system energy efficiency ratio.

[0029] If the energy efficiency ratio is lower than the historical system energy efficiency ratio, then the operating frequency of the household-side circulation pump and the operating frequency of the ground source-side circulation pump shall be maintained.

[0030] Otherwise, the monitoring system will readjust and set the operating frequency of the household-side circulation pump, the operating frequency of the ground-source circulation pump, and the water supply temperature until the dual objectives of minimum indoor temperature and minimum energy consumption are met.

[0031] A ground source heat pump energy station includes: a water system and a monitoring system;

[0032] The water system includes: a ground source heat pump unit, a heat exchanger, a user-side circulation pump, and a ground source-side circulation pump; the ground source heat pump unit and the heat exchanger are respectively connected to the user-side circulation pump and the ground source-side circulation pump; the ground source heat pump unit supplies cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating; the heat exchanger directly supplies cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions meet the conditions for energy-free cooling or heating.

[0033] The monitoring system includes: an acquisition module, a calculation module, and an analysis and statistics module connected in sequence, and further includes: a control module, a display module, and a storage module; the analysis and statistics module is connected to the control module, the display module, and the storage module respectively; the control module is connected to the ground source heat pump unit, the heat exchanger, the user-side circulating pump, and the ground source-side circulating pump respectively;

[0034] The acquisition module is used to acquire outdoor air temperature conditions, actual indoor air conditioning temperature, water supply pressure, water return pressure, water supply temperature, water return temperature, and the limit value of the ground temperature field of the heat exchanger system.

[0035] The calculation module is used to calculate the supply and return water pressure difference, supply and return water temperature difference, total heating or cooling capacity on the user side, active power of the circulating pump, active power of the ground source heat pump unit, total active power, and system energy efficiency ratio.

[0036] The analysis and statistics module is used to receive and statistically analyze the data transmitted by the calculation module, and to analyze and verify whether the water supply temperature, the operating frequency of the user-side circulation pump and the operating frequency of the ground-side circulation pump meet the requirements, whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, whether the actual indoor air conditioning temperature meets the requirements and whether the system energy efficiency ratio is lower than the historical system energy efficiency ratio.

[0037] The control module is used to receive and control the start-up of the ground source heat pump unit or heat exchanger based on the data transmitted by the analysis and statistics module, and to set the water supply temperature of the user-side circulation system, the operating frequency of the user-side circulation pump and the operating frequency of the ground source circulation pump.

[0038] The display module is used to display the data collected by the analysis and statistics module;

[0039] The storage module is used to store the data collected by the analysis and statistics module.

[0040] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a ground source heat pump energy station and its control method, which adopts intelligent fuzzy control and is suitable for the control of nonlinear, complex and time-varying systems of ground source heat pump air conditioning systems; through the dynamic tracking of indoor air conditioning terminal load by the ground source heat pump energy station, closed-loop control and dynamic monitoring of the intelligent operation system of the energy station are realized; the various modules of the entire ground source heat pump energy station are interconnected logically and functionally, and the control system centrally controls and manages the parameters of user-side water supply temperature, user-side circulation pump operating frequency and ground-side circulation pump operating frequency, and coordinates operation and optimizes comprehensive performance with system energy efficiency within a certain period of time as the overall goal, so as to achieve the dual goals of meeting indoor temperature and minimizing energy consumption, thereby realizing the green, low-carbon and high-quality development of building air conditioning systems; and the monitoring system has self-learning, self-optimization and adaptive optimization control functions. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0042] Figure 1 A flowchart of a ground source heat pump energy station control method provided by the present invention.

[0043] Figure 2 The flowchart of the method for obtaining the system energy efficiency ratio based on water supply temperature and operating frequency provided by the present invention is shown.

[0044] Figure 3 This is a schematic diagram of a ground source heat pump energy station structure provided by the present invention. Detailed Implementation

[0045] 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 some embodiments of the present invention, and not all embodiments. 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.

[0046] like Figure 1 As shown, this embodiment of the invention discloses a method for regulating a ground source heat pump energy station, including:

[0047] The monitoring system detects whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, or whether the actual indoor air conditioning temperature meets the requirements. When the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating, or the actual indoor air conditioning temperature does not meet the requirements, the system switches to a ground source heat pump unit for cooling or heating.

[0048] The monitoring system collects and sets the water supply temperature of the user-side circulation system based on the outdoor temperature, and verifies whether the water supply temperature meets the requirements.

[0049] When the water supply temperature meets the requirements, the monitoring system sets the operating frequency of the circulating pump;

[0050] The system energy efficiency ratio is obtained based on the water supply temperature and operating frequency, and it is verified whether the system energy efficiency ratio meets the requirements.

[0051] When the system energy efficiency ratio meets the requirements, the monitoring system stores the optimal water supply temperature and optimal operating frequency and displays them in real time.

[0052] Another embodiment of the present invention discloses a method for regulating a ground source heat pump energy station, comprising:

[0053] Preferably, when the monitoring system detects that the outdoor temperature conditions meet the requirements for energy-free cooling or heating, it switches to direct heat exchange operation of the heat exchanger and verifies whether the requirements are met by checking the actual indoor air conditioning temperature.

[0054] When the monitoring system detects that the outdoor temperature conditions do not meet the requirements for energy-free cooling or heating, or that the actual indoor air conditioning temperature does not meet the requirements, it switches to a ground source heat pump unit for cooling or heating.

[0055] The monitoring system collects and sets the water supply temperature of the user-side circulation system based on the outdoor temperature, and verifies whether the water supply temperature meets the requirements.

[0056] Preferably, after setting the water supply temperature of the user-side circulation system, the water supply temperature is verified to meet the requirements by detecting whether the actual indoor air conditioning temperature reaches the preset standard.

[0057] Preferably, if the water supply temperature meets the requirements, the set value is maintained; if the water supply temperature does not meet the requirements, the set value of the water supply temperature is adjusted through the monitoring system, and the above verification steps are repeated until the preset standard of the actual indoor air conditioning temperature is met.

[0058] When the water supply temperature meets the requirements, the monitoring system sets the operating frequency of the circulating pump.

[0059] Preferably, setting the operating frequency of the circulation pump specifically includes setting the operating frequency of the user-side circulation pump and the operating frequency of the geographical-side circulation pump.

[0060] Preferably, the monitoring system sets the operating frequency of the circulating pump, specifically including:

[0061] The monitoring system adjusts the operating frequency of the user-side circulating pump based on the pressure difference between the supply and return water on the user side.

[0062] The monitoring system adjusts the operating frequency of the ground source side circulation pump based on the temperature difference between the supply and return water on the ground source side.

[0063] Preferably, the monitoring system sets the operating frequency of the circulating pump, and further includes:

[0064] The monitoring system verifies whether the operating frequency of the user-side circulating pump meets the requirements by detecting the temperature difference between the supply and return water of the user-side circulating water system. If the requirements are met, the set value is maintained. If the requirements are not met, the operating frequency of the user-side circulating pump is adjusted through the monitoring system, and the above verification steps are repeated until the requirements are met.

[0065] The monitoring system verifies whether the operating frequency of the ground source side circulating pump meets the requirements by measuring the ground temperature field limit of the ground source side buried pipe heat exchanger system. If the requirements are met, the set value is maintained. If the requirements are not met, the operating frequency of the ground source side circulating pump is adjusted through the monitoring system, and the above verification steps are repeated until the requirements are met.

[0066] The system energy efficiency ratio is obtained based on the water supply temperature and operating frequency, and it is verified whether the system energy efficiency ratio meets the requirements.

[0067] Preferred, such as Figure 2 As shown, the system energy efficiency ratio is obtained based on the water supply temperature and operating frequency, specifically including:

[0068] The total heating or cooling capacity on the user side is obtained based on the water supply temperature.

[0069] The active power of the circulating pump is obtained based on the operating frequency of the household-side circulating pump and the operating frequency of the ground source circulating pump, and the active power of the ground source heat pump unit is also obtained. The active power of the circulating pump and the active power of the ground source heat pump unit constitute the total active power.

[0070] The ratio of total heating or cooling capacity to total active electrical energy on the user side represents the system's energy efficiency ratio.

[0071] When the system energy efficiency ratio meets the requirements, the monitoring system stores the optimal water supply temperature and optimal operating frequency and displays them in real time.

[0072] Preferably, the monitoring system verifies whether the system's energy efficiency ratio is lower than the historical system energy efficiency ratio;

[0073] If the system energy efficiency ratio is lower than the historical level, the operating frequency of the household-side circulation pump and the ground-source-side circulation pump will be maintained.

[0074] Otherwise, the monitoring system will readjust the operating frequency of the household-side circulation pump, the operating frequency of the ground-source circulation pump, and the water supply temperature until the dual objectives of minimum indoor temperature and minimum energy consumption are met.

[0075] Preferably, the monitoring system stores and remembers the optimal water supply temperature and operating frequency settings, and intelligently and automatically sets the water supply temperature and pump frequency based on the outdoor temperature and the temperature difference between the supply and return water.

[0076] Preferably, the monitoring system also automatically calculates and displays the hourly energy efficiency ratio of the ground source heat pump unit and the overall hourly energy efficiency ratio of the energy station system at regular intervals;

[0077] The hourly energy efficiency ratio of a ground source heat pump unit is the ratio of the instantaneous cooling or heating output of the ground source heat pump unit to the corresponding power consumption of the ground source heat pump unit.

[0078] The overall hourly energy efficiency ratio of an energy station system is the ratio of the instantaneous cooling or heating output of the ground source heat pump unit to the total electricity consumption of all units and pumps within the energy station.

[0079] Preferably, the historical system energy efficiency ratio includes: average hourly system energy efficiency ratio, average daily system energy efficiency ratio, average weekly system energy efficiency ratio, and average monthly system energy efficiency ratio;

[0080] Average hourly system energy efficiency ratio: The ratio of the total heating or cooling capacity supplied by the user side to the total active power of the ground source heat pump unit, the user-side circulating pump and the ground source circulating pump within one hour.

[0081] Average daily system energy efficiency ratio: The ratio of the total heating or cooling capacity supplied by the user side to the total active power of the ground source heat pump unit, the user-side circulating pump and the ground source circulating pump within a set day (24 hours);

[0082] Average weekly system energy efficiency ratio: The ratio of the total heating or cooling capacity supplied by the user side to the total active power of the ground source heat pump unit, the user-side circulating pump and the ground source circulating pump within a week (7 days).

[0083] Average monthly system energy efficiency ratio: The ratio of the total heating or cooling capacity supplied by the user side to the total active power of the ground source heat pump unit, the user-side circulating pump and the ground source circulating pump within a month (30 days).

[0084] Preferably, the hourly energy efficiency ratio of the ground source heat pump unit, the overall hourly energy efficiency ratio of the energy station system, and the historical system energy efficiency ratio are displayed in real time through the monitoring system, and the data are generated in the form of reports and graphs, which can be queried and downloaded in real time.

[0085] Preferably, the present invention also provides another method for improving the system energy efficiency ratio of a ground source heat pump energy station: In order to improve the transmission and distribution energy efficiency of the circulating pump, frequency conversion tests are conducted on the user-side and ground source-side circulating pumps of the ground source heat pump energy station system. The power consumption of the circulating pumps at each unit frequency and the actual circulation flow of the ground source heat pump energy station system are recorded. The ratio of circulation flow to power consumption at each unit frequency is calculated and expressed as the power consumption-to-transmission ratio. The actual measured data are plotted as a curve and fitted to a mathematical relationship between frequency and power consumption. Based on the slope of the mathematical relationship, the user-side and ground source-side circulating pumps are adjusted to operate in the range with a large power consumption-to-transmission ratio to improve the system energy efficiency ratio of the ground source heat pump energy station.

[0086] like Figure 3 As shown, a ground source heat pump energy station applied to the above-mentioned control method includes: a water system and a monitoring system;

[0087] The water system includes: a ground source heat pump unit, a heat exchanger, a user-side circulation pump, and a ground source-side circulation pump; the ground source heat pump unit and the heat exchanger are respectively connected to the user-side circulation pump and the ground source-side circulation pump; the ground source heat pump unit is used to supply cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating; the heat exchanger is used to directly supply cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions meet the conditions for energy-free cooling or heating.

[0088] The monitoring system includes: an acquisition module, a calculation module, and an analysis and statistics module connected in sequence; it also includes: a control module, a display module, and a storage module; the analysis and statistics module is connected to the control module, the display module, and the storage module respectively; the control module is connected to the ground source heat pump unit, the heat exchanger, the user-side circulating pump, and the ground source-side circulating pump respectively.

[0089] The acquisition module is used to acquire outdoor air temperature conditions, actual indoor air conditioning temperature, supply water pressure, return water pressure, supply water temperature, return water temperature, and the limit value of the ground temperature field of the heat exchanger system;

[0090] The calculation module is used to calculate the supply and return water pressure difference, supply and return water temperature difference, total heating or cooling capacity on the user side, active power of the circulating pump, active power of the ground source heat pump unit, total active power, and system energy efficiency ratio.

[0091] The analysis and statistics module is used to receive data transmitted by the statistical calculation module and analyze and verify whether the water supply temperature, the operating frequency of the user-side circulation pump and the operating frequency of the ground-side circulation pump meet the requirements, whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, whether the actual indoor air conditioning temperature meets the requirements, and whether the system energy efficiency ratio is lower than the historical system energy efficiency ratio.

[0092] The control module is used to receive and control the start-up of the ground source heat pump unit or heat exchanger based on the data transmitted by the analysis and statistics module, and to set the water supply temperature of the user-side circulation system, the operating frequency of the user-side circulation pump and the operating frequency of the ground source circulation pump.

[0093] The display module is used to display the data collected by the analysis and statistics module.

[0094] The storage module is used to store the data collected by the analysis and statistics module.

[0095] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a ground source heat pump energy station and its control method, which adopts intelligent fuzzy control and is suitable for the control of nonlinear, complex and time-varying systems of ground source heat pump air conditioning systems; through the dynamic tracking of indoor air conditioning terminal load by the ground source heat pump energy station, closed-loop control and dynamic monitoring of the intelligent operation system of the energy station are realized; the various modules of the entire ground source heat pump energy station are interconnected logically and functionally, and the control system centrally controls and manages the parameters of user-side water supply temperature, user-side circulation pump operating frequency and ground-side circulation pump operating frequency, and coordinates operation and optimizes comprehensive performance with system energy efficiency within a certain period of time as the overall goal, so as to achieve the dual goals of meeting indoor temperature and minimizing energy consumption, thereby realizing the green, low-carbon and high-quality development of building air conditioning systems; and the intelligent control system has self-learning, self-optimization and adaptive optimization control functions.

[0096] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0097] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for regulating a ground source heat pump energy station, characterized in that, include: The monitoring system detects whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, or whether the actual indoor air conditioning temperature meets the requirements. When the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating, or the actual indoor air conditioning temperature does not meet the requirements, the system switches to a ground source heat pump unit for cooling or heating. The monitoring system collects and sets the water supply temperature of the user-side circulation system according to the outdoor temperature, and verifies whether the water supply temperature meets the requirements. When the water supply temperature meets the requirements, the monitoring system sets the operating frequency of the circulating pump; The setting of the operating frequency of the circulation pump specifically includes: setting the operating frequency of the user-side circulation pump and the operating frequency of the geostationary circulation pump; The monitoring system sets the operating frequency of the circulating pump, specifically including: The monitoring system adjusts and sets the operating frequency of the user-side circulation pump based on the pressure difference between the water supply and return on the user side. The monitoring system adjusts the operating frequency of the ground source side circulation pump based on the temperature difference between the supply and return water on the ground source side. The system energy efficiency ratio is obtained based on the water supply temperature and the operating frequency, and it is verified whether the system energy efficiency ratio meets the requirements. Verifying whether the system's energy efficiency ratio meets the requirements specifically includes: The monitoring system verifies whether the system's energy efficiency ratio is lower than the historical system energy efficiency ratio. If the energy efficiency ratio is lower than the historical system energy efficiency ratio, then the operating frequency of the household-side circulation pump and the operating frequency of the ground source-side circulation pump shall be maintained. Otherwise, the monitoring system will readjust and set the operating frequency of the household-side circulation pump, the operating frequency of the ground-source circulation pump, and the water supply temperature until the dual objectives of minimum indoor temperature and minimum energy consumption are met. When the system energy efficiency ratio meets the requirements, the monitoring system stores the optimal water supply temperature and the optimal operating frequency and displays them in real time. Frequency conversion tests were conducted on the user-side and ground-source-side circulating pumps of the ground-source heat pump energy station system. The power consumption of the circulating pumps at each unit frequency and the actual circulating flow rate of the ground-source heat pump energy station system were recorded. The ratio of the circulating flow rate to the power consumption at each unit frequency was calculated and expressed as the power consumption-to-output ratio. The actual measured data were plotted as a curve and fitted to a mathematical relationship between frequency and power consumption. Based on the slope of the mathematical relationship, the user-side and ground-source-side circulating pumps were adjusted to operate in the range where the power consumption-to-output ratio was high.

2. The method for regulating a ground source heat pump energy station according to claim 1, characterized in that, Also includes: When the monitoring system detects that the outdoor temperature conditions meet the requirements for energy-free cooling or heating, it switches to direct heat exchange operation of the heat exchanger and verifies whether the requirements are met by checking the actual indoor air conditioning temperature.

3. The method for regulating a ground source heat pump energy station according to claim 1, characterized in that, The verification of whether the water supply temperature meets the requirements specifically includes: after setting the water supply temperature of the user-side circulation system, verifying whether the water supply temperature meets the requirements by detecting whether the actual indoor air conditioning temperature reaches the preset standard; if it does not meet the requirements, adjusting the water supply temperature until it does.

4. The method for regulating a ground source heat pump energy station according to claim 1, characterized in that, The monitoring system sets the operating frequency of the circulating pump, and also includes: The monitoring system verifies whether the operating frequency of the user-side circulating pump meets the requirements by detecting the temperature difference between the supply and return water of the user-side circulating water system. The monitoring system verifies whether the operating frequency of the ground source-side circulating pump meets the requirements by measuring the ground temperature field limit of the ground source-side buried pipe heat exchanger system.

5. The method for regulating a ground source heat pump energy station according to claim 4, characterized in that, The process of obtaining the system energy efficiency ratio based on the water supply temperature and the operating frequency specifically includes: The total heating or cooling capacity on the user side is obtained based on the water supply temperature. The active power of the circulating pump is obtained based on the operating frequency of the household-side circulating pump and the operating frequency of the ground source-side circulating pump, and the active power of the ground source heat pump unit is also obtained. The active power of the circulating pump and the active power of the ground source heat pump unit constitute the total active power. The ratio of the total heating or cooling capacity supplied to the total active electrical energy on the user side represents the system's energy efficiency ratio.

6. A ground source heat pump energy station, characterized in that, include: Water system and monitoring system; The water system includes: a ground source heat pump unit, a heat exchanger, a user-side circulation pump, and a ground source-side circulation pump; the ground source heat pump unit and the heat exchanger are respectively connected to the user-side circulation pump and the ground source-side circulation pump; the ground source heat pump unit supplies cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions do not meet the conditions for energy-free cooling or heating; the heat exchanger directly supplies cooling or heating to the user-side circulation pump and the ground source-side circulation pump when the outdoor temperature conditions meet the conditions for energy-free cooling or heating. The monitoring system includes: an acquisition module, a calculation module, and an analysis and statistics module connected in sequence, and further includes: a control module, a display module, and a storage module; the analysis and statistics module is connected to the control module, the display module, and the storage module respectively; the control module is connected to the ground source heat pump unit, the heat exchanger, the user-side circulating pump, and the ground source-side circulating pump respectively; The acquisition module is used to acquire outdoor air temperature conditions, actual indoor air conditioning temperature, water supply pressure, water return pressure, water supply temperature, water return temperature, and the limit value of the ground temperature field of the heat exchanger system. The calculation module is used to calculate the supply and return water pressure difference, supply and return water temperature difference, total heating or cooling capacity on the user side, active power of the circulating pump, active power of the ground source heat pump unit, total active power, and system energy efficiency ratio. The analysis and statistics module is used to receive and statistically analyze the data transmitted by the calculation module, and to analyze and verify whether the water supply temperature, the operating frequency of the user-side circulation pump and the operating frequency of the ground-side circulation pump meet the requirements, whether the outdoor temperature conditions meet the conditions for energy-free cooling or heating, whether the actual indoor air conditioning temperature meets the requirements and whether the system energy efficiency ratio is lower than the historical system energy efficiency ratio. The control module is used to receive and control the start-up of the ground source heat pump unit or heat exchanger based on the data transmitted by the analysis and statistics module, and to set the water supply temperature of the user-side circulation system, the operating frequency of the user-side circulation pump and the operating frequency of the ground source circulation pump. The display module is used to display the data collected by the analysis and statistics module; The storage module is used to store the data collected by the analysis and statistics module.

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