Triple co-generation system, control method and related device

Abstract

The invention discloses a triple co-generation system, a control method and a related device, relates to the field of air conditioners, and is characterized in that a photovoltaic energy storage module, a second water segregator and an energy storage water tank are additionally arranged on the basis of a common triple co-generation system. A first two-way valve and a first water pump are additionally arranged between the first water segregator and the second water segregator, a second two-way valve is additionally arranged between the first water segregator and the energy storage water tank, a second water pump and a first three-way valve are additionally arranged between the energy storage water tank and the water collector, and one end of the first three-way valve is connected with an inlet of the second water segregator. In this way, in the time period with sufficient sunlight, the photovoltaic energy storage module can generate electricity and supply power to the heat pump main machine to drive the heat pump main machine to work, energy can be stored through the energy storage water tank while energy is provided for the transduction equipment, and then the energy storage water tank is preferentially used for conducting heat exchange on the transduction equipment in the time period with insufficient sunlight. And compared with a mode of only using the mains supply to supply energy, the energy consumption of the system can be effectively reduced, and the use cost is reduced.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a tri-generation system, control method and related devices. Background Technology

[0002] In the air conditioning industry, the traditional tri-generation system refers to using a single outdoor unit connected to different indoor terminals to achieve cooling, heating, and hot water production. Its direct reliance on the power grid results in high operating costs, especially during peak electricity consumption periods such as daytime, when higher grid electricity prices further increase these costs. Summary of the Invention

[0003] In view of the above problems, this application provides a combined cooling, heating, and power (CCHP) system, control method, and related devices to reduce energy consumption and lower operating costs. The specific solution is as follows:

[0004] The first aspect of this application provides a combined heat and power (CHP) system, including: a photovoltaic energy storage module, a heat pump host, a balance tank, a first water distributor, a second water distributor, an energy storage tank, and a water collector;

[0005] The photovoltaic energy storage module and the heat pump host are electrically connected;

[0006] The water circulation end of the heat pump host is connected to the balance water tank, the outlet of the balance water tank is connected to the inlet of the first water distributor, the first output end of the first water distributor is connected to the input end of the second water distributor, a first two-way valve and a first water pump are provided between the first output end of the first water distributor and the input end of the second water distributor, the output end of the second water distributor is connected to the energy transducer, the energy transducer is connected to the input end of the water collector, and the output end of the water collector is connected to the inlet of the balance water tank.

[0007] The second output end of the first water distributor is connected to the inlet of the energy storage tank, the outlet of the energy storage tank is connected to the inlet of the water collector, a second water pump and a first three-way valve are provided between the energy storage tank and the water collector, the first end of the first three-way valve is connected to the outlet of the second water pump, the second end of the first three-way valve is connected to the inlet of the water collector, the third end of the first three-way valve is connected to the input end of the second water distributor, the second input end of the first water distributor is connected to the inlet of the energy storage tank, and a second two-way valve is provided between the second input end of the first water distributor and the inlet of the energy storage tank.

[0008] In one possible implementation, the combined cooling, heating, and power (CCHP) system further includes: a domestic water tank; a second three-way valve is provided between the heat pump unit and the balancing water tank; the first end of the second three-way valve is connected to the outlet of the heat pump unit; the second end of the second three-way valve is connected to the balancing water tank; the third end of the second three-way valve is connected to the inlet of the domestic water tank; and the outlet of the domestic water tank is connected to the inlet of the heat pump unit.

[0009] The second aspect of this application provides a control method for a combined cooling, heating, and power (CCHP) system, applied in the CCHP system described in the first aspect above, comprising:

[0010] Based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements, the system operating mode is determined. Based on the system operating mode, the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve are adjusted to provide energy to the energy conversion equipment while adjusting the energy exchange method between the heat pump host and the energy storage tank, as well as between the energy storage tank and the energy conversion equipment.

[0011] In one possible implementation, determining the system operating mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirement, and adjusting the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operating mode, includes:

[0012] If, during the first operating period of the system, the power generation of the photovoltaic energy storage module meets the requirements and the indoor temperature does not reach the set temperature, then the first system operating mode is executed. In the first system operating mode, the first two-way valve is opened, the first water pump is operated, the second two-way valve is closed, the second water pump is closed, and the first three-way valve is closed, so that the heat pump host exchanges heat with the energy exchange device through the balance water tank. The first operating period represents the time period when there is sunlight.

[0013] In one possible implementation, determining the system operating mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirement, and adjusting the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operating mode, includes:

[0014] If the photovoltaic energy storage module generates enough electricity and the indoor temperature reaches the set temperature during the first time period of system operation, or if the indoor temperature reaches the set temperature during the second time period of system operation, the second system operation mode is executed. In the second system operation mode: both the first two-way valve and the second two-way valve are turned on; both the first water pump and the second water pump are turned on; the first and second ends of the first three-way valve are connected; and the third end of the first three-way valve is closed, so that the heat pump host exchanges energy with the energy exchange device and the energy storage tank through the balance water tank. The first time period represents the time period in which sunlight shines, and the second time period represents the time period in which there is no sunlight.

[0015] In one possible implementation, determining the system operating mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements, and adjusting the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operating mode, further includes:

[0016] After the second system operation mode has been running for a set period of time, if the system operation period is within the second period and the indoor temperature has not reached the set temperature, or if the system operation period is within the first period and the power generation of the photovoltaic energy storage module does not meet the requirements, then the third system operation mode is executed. In the third system operation mode: the heat pump host is controlled to shut down, the first two-way valve is controlled to shut down, the first water pump is controlled to shut down, the second two-way valve is controlled to open, the second water pump is controlled to operate, the first and third ends of the first three-way valve are controlled to open, and the second end of the first three-way valve is controlled to close, so that the energy storage tank exchanges energy with the energy exchange device through the balance tank.

[0017] A third aspect of this application provides a control device for a combined cooling, heating, and power (CCHP) system, comprising:

[0018] The operation mode determination module is used to determine the system operation mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements; and,

[0019] The operation mode control module is used to adjust the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operation mode determined by the operation mode determination module, so as to adjust the energy exchange mode between the heat pump host and the energy storage tank, and between the energy storage tank and the energy conversion device while providing energy to the energy conversion device.

[0020] The fourth aspect of this application provides a computer program product including computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the tri-generation system control method of the second aspect or any implementation thereof.

[0021] A fifth aspect of this application provides an electronic device, comprising at least one processor and a memory connected to the processor, wherein:

[0022] The memory is used to store computer programs;

[0023] The processor is used to execute the computer program so that the electronic device can implement the tri-generation system control method of the second aspect or any implementation thereof described above.

[0024] The sixth aspect of this application provides a computer storage medium carrying one or more computer programs, which, when executed by an electronic device, enable the electronic device to implement the tri-generation system control method described in the second aspect or any implementation thereof.

[0025] By employing the above technical solution, the combined heat and power (CHP) system provided in this application adds a photovoltaic energy storage module, a second water distributor, and an energy storage tank to a commonly used CHP system. A first two-way valve and a first water pump are added between the first and second water distributors; a second two-way valve is added between the first water distributor and the energy storage tank; a second water pump and a first three-way valve are added between the energy storage tank and the collector. One end of the first three-way valve is connected to the inlet of the second water distributor. In this way, during periods of sufficient sunlight, the photovoltaic energy storage module generates electricity to power the heat pump unit, driving its operation. By controlling the aforementioned water pumps, two-way valves, and three-way valves, energy can be provided to the energy exchange equipment while simultaneously storing energy in the energy storage tank. Therefore, during periods of insufficient sunlight, the energy storage tank can be prioritized for heat exchange with the energy exchange equipment by controlling the aforementioned water pumps, two-way valves, and three-way valves. Compared to relying solely on mains power, this effectively reduces system energy consumption and lowers operating costs. Attached Figure Description

[0026] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0027] Figure 1 A structural diagram of a combined cooling, heating, and power (CCHP) system is provided in this application;

[0028] Figure 2This application provides a schematic diagram of water circulation under a system operation mode;

[0029] Figure 3 A schematic diagram of water circulation under another system operation mode provided in this application;

[0030] Figure 4 A schematic diagram of water circulation under another system operation mode provided in this application;

[0031] Figure 5 A structural diagram of a control device for a combined cooling, heating, and power (CCHP) system is provided in this application;

[0032] Figure 6 This is a structural diagram of an electronic device provided in this application. Detailed Implementation

[0033] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0034] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0035] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

[0036] Current tri-generation systems (where one outdoor air conditioning unit connects to different indoor terminals to provide cooling, heating, and hot water) suffer from high energy consumption and operating costs. This is especially true during peak daytime hours when the power grid experiences high electricity prices when direct grid electricity is used.

[0037] To address the aforementioned problems, this application provides a combined cooling, heating, and power (CCHP) system. The following detailed description of a CCHP system according to an embodiment of this application is provided in conjunction with the accompanying drawings.

[0038] Reference Figure 1 , Figure 1A schematic diagram of a combined cooling, heating, and power (CCHP) system is provided as an embodiment of this application, such as... Figure 1 As shown in the embodiment of this application, a combined heat and power system includes: a photovoltaic energy storage module, a heat pump host, a balance tank, a first water distributor, a second water distributor, an energy storage tank, and a water collector;

[0039] The photovoltaic energy storage module and the heat pump main unit are electrically connected;

[0040] The water circulation end of the heat pump unit is connected to the balance tank. The outlet of the balance tank is connected to the inlet of the first water distributor. The first output end of the first water distributor and the input end of the second water distributor are connected. A first two-way valve and a first water pump are installed between the first output end of the first water distributor and the input end of the second water distributor. The output end of the second water distributor is connected to the energy transducer. The energy transducer is connected to the input end of the water collector. The output end of the water collector is connected to the inlet of the balance tank.

[0041] The second output end of the first water distributor is connected to the inlet of the energy storage tank, the outlet of the energy storage tank is connected to the inlet of the water collector, a second water pump and a first three-way valve are installed between the energy storage tank and the water collector, the first end of the first three-way valve is connected to the outlet of the second water pump, the second end of the first three-way valve is connected to the inlet of the water collector, the third end of the first three-way valve is connected to the input end of the second water distributor, the second input end of the first water distributor is connected to the inlet of the energy storage tank, and a second two-way valve is installed between the second input end of the first water distributor and the inlet of the energy storage tank.

[0042] Specifically, refer to Figure 1 As shown, the energy conversion equipment here may include: fan coil units in zone 1, used for heat exchange in heating or cooling mode; and underfloor heating in zone 2, which is typically used when the indoor temperature is low and is mainly for heating.

[0043] A photovoltaic energy storage module consists of multiple photovoltaic panels responsible for power generation and a photovoltaic energy management module responsible for energy storage and management. The energy storage tank is responsible for heat or cold storage. Based on the working principle of air conditioning, heat is transferred through a heat pump unit. In heating mode, the water tank is heated, and then the water circulation exchanges heat to the room, raising the indoor temperature. In cooling mode, the water tank is cooled, and then the water circulation absorbs heat from the room, cooling the indoor temperature.

[0044] Depending on the usage scenario, the following system operation modes can be achieved by controlling the above-mentioned two-way valves, water pumps, and three-way valves: independent heating, heating + heat storage, independent heat release, independent cooling, cooling + cold storage, and independent cold release. Since the operating principles of heating + heat storage and cooling + cold storage modes, independent heating and independent cooling modes, and independent heat release and independent cold release modes are the same, the only difference is the heating / cooling mode of the outdoor heat pump main unit. Therefore, the operation process of this tri-generation system will be explained below using independent heating, heating + heat storage, and independent heat release as examples.

[0045] During the day when there is sufficient sunlight, the photovoltaic energy storage module has sufficient power supply to the heat pump unit. In other cases, the heat pump unit is powered by the mains electricity. There is a set temperature range for the indoor temperature. After entering the set temperature range, different system operation modes can be switched. The system operation modes under different application scenarios are shown in Table 1 below:

[0046] Table 1

[0047]

[0048] In the standalone heating mode, the scenario is when there is ample sunlight during the day and the room temperature has not reached the set temperature range. Power is supplied to the heat pump unit through the photovoltaic energy storage module. At this time, the heat pump unit generates heat to the balance tank. The first two-way valve and the first water pump on the indoor side are open, the second two-way valve and the second water pump are closed, and the first three-way valve is closed. The hot water in the balance tank is distributed to indoor zone 1 and zone 2 through the water distributor, and returns to the balance tank through the water collector, continuously supplying heat to the indoor terminals.

[0049] In the heating + heat storage operation mode, the usage scenario is when there is sufficient sunlight during the day and the room temperature reaches the set temperature range, and at night the room temperature reaches the set temperature range. During the day, the photovoltaic energy storage management module supplies power to the heat pump unit, and at night the mains power supplies power to the heat pump unit. The heat pump unit generates heat to the balance tank. The first two-way valve, the second two-way valve, the first water pump, and the second water pump on the indoor side are all open. The end of the first three-way valve connected to the water collector and the end connected to the energy storage tank are open. The hot water in the balance tank is distributed to indoor zone 1, zone 2, and the hot water storage tank through the water distributor, and returns to the balance tank through the water collector, continuously supplying heat to the indoor terminals and the hot water storage tank.

[0050] In standalone heat release mode, used when the room temperature is below the set range at night or when there is insufficient sunlight during the day, the heat pump unit does not start, the first two-way valve is closed, the first water pump is off, the second two-way valve is open, the second water pump is on, and the end of the first three-way valve connected to the second manifold is open. The hot water storage tank supplies hot water to zones 1 and 2 through the second manifold. After heat release, the hot water returns to the hot water storage tank via the collector, balance tank, first manifold, and second two-way valve. When the temperature of the hot water storage tank drops to a certain value and cannot provide sufficient heating capacity, the system switches to standalone heating mode.

[0051] As can be seen from the above, this combined solar power system, through the cooperation of photovoltaic energy storage modules and energy storage tanks, can collect solar energy and convert it into electricity during the day when there is sufficient sunlight, providing power to the system and meeting the indoor cooling / heating needs. After that, the system continues to operate and stores the cooling / heating in the energy storage tank. At night, the energy storage tank is used to supply energy to the indoor environment first. When the energy is insufficient, the system is connected to the mains power and starts cooling / heating, which can effectively reduce system energy consumption and lower operating costs.

[0052] Reference Figure 1 As shown, in another embodiment of the combined cooling, heating, and power system, the system further includes: a domestic water tank, a second three-way valve disposed between the heat pump unit and the balancing water tank, the first end of the second three-way valve being connected to the outlet of the heat pump unit, the second end of the second three-way valve being connected to the balancing water tank, the third end of the second three-way valve being connected to the inlet of the domestic water tank, and the outlet of the domestic water tank being connected to the inlet of the heat pump unit.

[0053] For details, please refer to Figure 1 As shown, by controlling the second three-way valve, the domestic water tank participates in the heat pump host and the heat exchange between the balancing water tanks, thereby meeting the hot water needs of daily life, such as daily washing and other water use.

[0054] In addition, bypass pressure relief valves are installed on the heating circuits of Zone 1 and Zone 2. These bypass pressure relief valves can balance the pressure in the system, thereby ensuring the stable operation of the system.

[0055] Embodiments of this application also provide a control method for a combined cooling, heating, and power (CCHP) system, applied in the CCHP system described in the above embodiments, comprising:

[0056] Based on the system's operating time, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements, the system operating mode is determined. Based on the system operating mode, the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve are adjusted to provide energy to the energy conversion equipment while adjusting the energy exchange method between the heat pump host and the energy storage tank, as well as between the energy storage tank and the energy conversion equipment.

[0057] Taking the heating mode of an air conditioner as an example:

[0058] If, during the first operating period of the system, the power generation of the photovoltaic energy storage module meets the requirements and the indoor temperature does not reach the set temperature, then the first system operating mode is executed. In the first system operating mode, the first two-way valve is opened, the first water pump is operated, the second two-way valve is closed, the second water pump is closed, and the first three-way valve is closed, so that the heat pump host can exchange heat with the energy exchange device through the balance water tank. The first period represents the time period when there is sunlight.

[0059] Specifically, the power generation of the photovoltaic energy storage module is used to measure the sunshine conditions. When the power generation of the photovoltaic energy storage module exceeds the set value, the sunshine is considered sufficient, and the photovoltaic energy storage module can supply power to the heat pump unit. The specific control effect can be found in [reference needed]. Figure 2 As shown:

[0060] After the first two-way valve opens, the second two-way valve closes, the first water pump opens, the second water pump closes, and the first three-way valve closes, water flows through the heat pump unit to the first distributor, then to the second distributor, where it supplies heat to zones 1 and 2. The water then returns to the balance tank via the collector and finally back to the heat pump unit. Thus, during periods of ample sunlight, the heat pump unit is driven by photovoltaic power generation, effectively reducing system energy consumption and saving on operating costs.

[0061] If the photovoltaic energy storage module generates enough electricity and the indoor temperature reaches the set temperature during the first time period of system operation, or if the indoor temperature reaches the set temperature during the second time period of system operation, the second system operation mode is executed. In the second system operation mode: both the first two-way valve and the second two-way valve are open; both the first water pump and the second water pump are working; the first and second ends of the first three-way valve are connected; and the third end of the first three-way valve is closed, so that the heat pump host exchanges energy with the energy exchange device and the energy storage tank through the balance water tank. The first time period represents the time period when there is sunlight, and the second time period represents the time period when there is no sunlight.

[0062] Specifically, refer to Figure 3 As shown, based on the first system operation mode described above, the second two-way valve is opened, the second water pump is run, and the first three-way valve is connected to both ends of the water collector and the energy storage tank. This enables the heat pump host to supply heat to zones 1 and 2 through the balance tank and the first water distributor, while simultaneously supplying heat to the energy storage tank, thereby achieving energy storage.

[0063] When there is sufficient sunlight during the day, after meeting the indoor heating needs, the excess electricity generated by photovoltaic power generation continues to generate heat and is stored in a hot water storage tank.

[0064] When the heat storage tank is insufficient at night, the heating + heat storage operation mode can provide heating and utilize off-peak electricity prices at night for heat storage, which can effectively save system operating costs.

[0065] After the second system operation mode has been running for a set period of time, if the indoor temperature does not reach the set temperature during the second period of system operation, or if the photovoltaic energy storage module does not meet the power generation requirements during the first period of system operation, then the third system operation mode will be executed. In the third system operation mode: the heat pump host is controlled to shut down, the first two-way valve is controlled to shut down, the first water pump is controlled to shut down, the second two-way valve is controlled to open, the second water pump is controlled to operate, the first and third ends of the first three-way valve are controlled to open, and the second end of the first three-way valve is controlled to close, so that the energy storage tank exchanges energy with the energy exchange device through the balance water tank.

[0066] Specifically, refer to Figure 4 As shown, with the heat pump unit shut off, the first two-way valve closed, the second two-way valve open, the first water pump shut off, the second water pump open, and the first three-way valve connected to both the second distributor and the second water pump connected, water flows from the second water pump to the first three-way valve, then to the second distributor to heat zones 1 and 2, then back to the balance tank via the collector, and finally from the balance tank back to the first distributor and then to the energy storage tank, thus achieving heating via the energy storage tank. At night or when sunlight is insufficient during the day, heat is preferentially supplied through the energy storage tank, reducing power system energy consumption and saving system operating costs.

[0067] The above describes a control method for a combined cooling, heating, and power (CCHP) system provided by an embodiment of this application. The following describes the apparatus for implementing the above CCHP system control method.

[0068] Please see Figure 5 , Figure 5 This is a schematic diagram of a control device for a combined cooling, heating, and power (CCHP) system, provided as an embodiment of this application. Figure 5 As shown, the control device for the combined cooling, heating, and power (CCHP) system includes:

[0069] The operation mode determination module 501 is used to determine the system operation mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements; and,

[0070] The operation mode control module 502 is used to adjust the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operation mode determined by the operation mode determination module, so as to adjust the energy exchange mode between the heat pump host and the energy storage tank, and between the energy storage tank and the energy conversion device while providing energy to the energy conversion device.

[0071] In one possible implementation, the operation mode control module 502 is used to: when the operation mode determination module 501 determines to execute the first system operation mode based on the system operation period, the photovoltaic energy storage module's power generation meeting the requirements and the indoor temperature not reaching the set temperature during the first time period, in the first system operation mode: control the first two-way valve to open, control the first water pump to operate, control the second two-way valve to close, control the second water pump to close, and control the first three-way valve to close, so that the heat pump host can exchange heat with the energy exchange device through the balance water tank, and the first time period represents the time period when there is sunlight.

[0072] In one possible implementation, the operation mode control module 502 is used to: when the operation mode determination module 501 executes the second system operation mode according to the system operation period in the first time period, the power generation of the photovoltaic energy storage module meets the requirements and the indoor temperature reaches the set temperature, or the system operation period in the second time period and the indoor temperature reaches the set temperature, in the second system operation mode: control both the first two-way valve and the second two-way valve to be open, control both the first water pump and the second water pump to work, control the first end and the second end of the first three-way valve to be open, and close the third end of the first three-way valve, so that the heat pump host exchanges energy with the energy exchange device and the energy storage tank through the balance water tank. The first time period represents the time period when there is sunlight, and the second time period represents the time period when there is no sunlight.

[0073] In one possible implementation, the operation mode control module 502 is used to: after the operation mode determination module 501 has set the operation time according to the second system operation mode, if the system operation period is in the second time period and the indoor temperature does not reach the set temperature, or the system operation period is in the first time period and the power generation of the photovoltaic energy storage module does not meet the requirements, then when the third system operation mode is executed, in the third system operation mode: control the heat pump host to shut down, control the first two-way valve to shut down, control the first water pump to shut down, control the second two-way valve to open, control the second water pump to work, control the first and third ends of the first three-way valve to open, and control the second end of the first three-way valve to close, so that the energy storage tank exchanges energy with the energy exchange device through the balance tank.

[0074] This application also provides an electronic device in its embodiments. (See reference...) Figure 6 The diagram illustrates a structural schematic suitable for implementing the electronic device in the embodiments of this application. The electronic device in the embodiments of this application may include, but is not limited to, devices such as MCU (Microcontroller Unit), CPU (Central Processing Unit), etc. Figure 6 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0075] like Figure 6 As shown, the electronic device may include a processing unit (e.g., a central processing unit, a graphics processing unit, etc.) 601, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 602 or a program loaded from a storage device 608 into a random access memory (RAM) 603. When the electronic device is powered on, the RAM 603 also stores various programs and data required for the operation of the electronic device. The processing unit 601, ROM 602, and RAM 603 are interconnected via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0076] Typically, the following devices can be connected to I / O interface 605: input devices 606, including, for example, touchscreens, touchpads, etc.; output devices 607, including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 608, including, for example, memory cards, hard disks, etc.; and communication devices 609. Communication device 609 allows electronic devices to exchange data via wireless or wired communication with other devices. Although Figure 6 Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown. More or fewer devices may be implemented or have alternatively.

[0077] This application also provides a computer program product including computer-readable instructions, which, when executed on an electronic device, cause the electronic device to implement any of the three-in-one power supply system control methods provided in this application.

[0078] This application also provides a computer-readable storage medium that carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any of the three-in-one power supply system control methods provided in this application.

[0079] It should also be noted that the device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. In addition, in the device embodiment drawings provided in this application, the connection relationship between modules indicates that they have a communication connection, which can be implemented as one or more communication buses or signal lines.

[0080] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can also be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0081] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product.

[0082] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A combined cooling, heating, and power (CCHP) system, characterized in that, include: Photovoltaic energy storage module, heat pump main unit, balance water tank, first water distributor, second water distributor, energy storage tank and water collector; The photovoltaic energy storage module and the heat pump host are electrically connected; The water circulation end of the heat pump host is connected to the balance water tank, the outlet of the balance water tank is connected to the inlet of the first water distributor, the first output end of the first water distributor is connected to the input end of the second water distributor, a first two-way valve and a first water pump are provided between the first output end of the first water distributor and the input end of the second water distributor, the output end of the second water distributor is connected to the energy transducer, the energy transducer is connected to the input end of the water collector, and the output end of the water collector is connected to the inlet of the balance water tank. The second output end of the first water distributor is connected to the inlet of the energy storage tank, the outlet of the energy storage tank is connected to the inlet of the water collector, a second water pump and a first three-way valve are provided between the energy storage tank and the water collector, the first end of the first three-way valve is connected to the outlet of the second water pump, the second end of the first three-way valve is connected to the inlet of the water collector, the third end of the first three-way valve is connected to the input end of the second water distributor, the second input end of the first water distributor is connected to the inlet of the energy storage tank, and a second two-way valve is provided between the second input end of the first water distributor and the inlet of the energy storage tank.

2. The combined cooling, heating, and power (CCHP) system according to claim 1, characterized in that, Also includes: A domestic water tank is provided, and a second three-way valve is provided between the heat pump host and the balance water tank. The first end of the second three-way valve is connected to the outlet of the heat pump host, the second end of the second three-way valve is connected to the balance water tank, the third end of the second three-way valve is connected to the inlet of the domestic water tank, and the outlet of the domestic water tank is connected to the inlet of the heat pump host.

3. A control method for a combined cooling, heating, and power (CCHP) system, applied in the CCHP system as described in claim 1 or 2, characterized in that, include: Based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements, the system operating mode is determined. Based on the system operating mode, the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve are adjusted to provide energy to the energy conversion equipment while adjusting the energy exchange method between the heat pump host and the energy storage tank, as well as between the energy storage tank and the energy conversion equipment.

4. The control method for a combined cooling, heating, and power (CCHP) system according to claim 3, characterized in that, The system operation mode is determined based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements. Based on this system operation mode, the operating states of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve are adjusted, including: If, during the first operating period of the system, the power generation of the photovoltaic energy storage module meets the requirements and the indoor temperature does not reach the set temperature, then the first system operating mode is executed. In the first system operating mode, the first two-way valve is opened, the first water pump is operated, the second two-way valve is closed, the second water pump is closed, and the first three-way valve is closed, so that the heat pump host exchanges heat with the energy exchange device through the balance water tank. The first operating period represents the time period when there is sunlight.

5. The control method for a combined cooling, heating, and power (CCHP) system according to claim 3, characterized in that, The system operation mode is determined based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements. Based on this system operation mode, the operating states of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve are adjusted, including: If the photovoltaic energy storage module generates enough electricity and the indoor temperature reaches the set temperature during the first time period of system operation, or if the indoor temperature reaches the set temperature during the second time period of system operation, the second system operation mode is executed. In the second system operation mode: both the first two-way valve and the second two-way valve are turned on; both the first water pump and the second water pump are turned on; the first and second ends of the first three-way valve are connected; and the third end of the first three-way valve is closed, so that the heat pump host exchanges energy with the energy exchange device and the energy storage tank through the balance water tank. The first time period represents the time period in which sunlight shines, and the second time period represents the time period in which there is no sunlight.

6. The control method for a combined cooling, heating, and power (CCHP) system according to claim 5, characterized in that, The process of determining the system operating mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements, and adjusting the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operating mode, also includes: After the second system operation mode has been running for a set period of time, if the system operation period is within the second period and the indoor temperature has not reached the set temperature, or if the system operation period is within the first period and the power generation of the photovoltaic energy storage module does not meet the requirements, then the third system operation mode is executed. In the third system operation mode: the heat pump host is controlled to shut down, the first two-way valve is controlled to shut down, the first water pump is controlled to shut down, the second two-way valve is controlled to open, the second water pump is controlled to operate, the first and third ends of the first three-way valve are controlled to open, and the second end of the first three-way valve is controlled to close, so that the energy storage tank exchanges energy with the energy exchange device through the balance tank.

7. A control device for a combined cooling, heating, and power (CCHP) system, characterized in that, include: The operation mode determination module is used to determine the system operation mode based on the system operating period, the power generation of the photovoltaic energy storage module, and the indoor temperature requirements. as well as, The operation mode control module is used to adjust the operating status of the first two-way valve, the second two-way valve, the first water pump, the second water pump, and the first three-way valve according to the system operation mode determined by the operation mode determination module, so as to adjust the energy exchange mode between the heat pump host and the energy storage tank, and between the energy storage tank and the energy conversion device while providing energy to the energy conversion device.

8. A computer program product, characterized in that, It includes computer-readable instructions that, when executed on an electronic device, cause the electronic device to implement the tri-generation system control method as described in any one of claims 3 to 6.

9. An electronic device, characterized in that, It includes at least one processor and a memory connected to the processor, wherein: The memory is used to store computer programs; The processor is used to execute the computer program to enable the electronic device to implement the tri-generation system control method as described in any one of claims 3 to 6.

10. A computer storage medium, characterized in that, The storage medium carries one or more computer programs, which, when executed by an electronic device, enable the electronic device to implement the tri-generation system control method as described in any one of claims 3 to 6.

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