A sunlight room system integrating light storage and charging and a control method

Abstract

The application discloses a light storage and charging integrated sunlight room system and a control method, relates to the technical field of photovoltaic energy storage, and comprises a sunlight room structure that can be opened and closed, an angle-adjustable photovoltaic module laid on a rain shield, an energy storage module for storing excess electric energy, a charging pile module for providing charging for an electric vehicle, an indoor load module, a commercial power access module and an energy router; the energy router comprises an input acquisition module, a logic control module, an output execution module and a communication module, can acquire electric energy data of each module in real time, formulates an energy dispatching strategy, dynamically adjusts an energy path through a relay switch array group, and realizes switching between photovoltaic power generation, energy storage, a charging pile, a load and commercial power supply; through an interconnection interface user terminal, remote monitoring, operation and control and energy consumption query are realized; the light storage and charging integrated sunlight room system can solve the problems of unstable power supply, low electric energy utilization and low integration, and is suitable for sunlight room buildings and new energy use scenes.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy storage technology, and in particular to an integrated photovoltaic, energy storage and charging sunroom system and control method. Background Technology

[0002] With the adjustment of the global energy structure and the advancement of low-carbon goals, green, energy-saving, and intelligent building forms are gradually becoming important directions for future development. Sunrooms, as a building form that integrates lighting, ventilation, and aesthetics, have been widely used in residential, commercial, and public buildings in recent years. At the same time, the maturity of photovoltaic technology and the widespread availability of energy storage devices have made it possible to achieve energy self-sufficiency for sunrooms.

[0003] Currently, photovoltaic sunrooms mainly convert solar energy into electricity by installing solar panels on the roof or facade, which is then used to power indoor lighting, air conditioning, and other equipment.

[0004] However, traditional photovoltaic sunrooms have the following problems: First, photovoltaic power generation is intermittent and unstable, and is greatly affected by weather and day-night changes, making it difficult to achieve continuous and stable power supply.

[0005] Secondly, the lack of an effective energy storage system means that excess electrical energy cannot be stored, resulting in energy waste.

[0006] Secondly, it fails to integrate electric vehicle charging functionality, thus failing to meet the charging needs of users who own new energy vehicles.

[0007] To address these issues, integrated photovoltaic-energy storage-charging solutions have emerged in recent years, combining photovoltaic power generation, energy storage systems, and charging piles into a complete energy system. However, existing integrated photovoltaic-energy storage-charging systems are mostly used in standalone charging stations or large commercial facilities, and have not yet been widely applied in buildings such as sunrooms.

[0008] Furthermore, existing integrated photovoltaic, energy storage, and charging systems still have room for improvement in terms of integration, intelligence, and user experience. For example, some systems fail to adequately consider building aesthetics and space utilization in their design, resulting in large space-consuming energy storage devices that affect building layout. At the same time, the intelligence level of the energy management system is limited, making it unable to dynamically adjust energy allocation strategies based on user needs and energy prices.

[0009] In summary, the existing technology has at least the following technical problems:

[0010] Existing photovoltaic sunrooms suffer from technical problems such as unstable power supply, low energy utilization rate, and low integration. Summary of the Invention

[0011] The purpose of this invention is to provide an integrated photovoltaic, energy storage, and charging sunroom system and control method to solve the technical problems of unstable power supply, low energy utilization, and low integration in existing photovoltaic sunrooms.

[0012] The preferred technical solutions among the many technical solutions provided by this invention can produce a variety of technical effects, which are described in detail below.

[0013] To address the aforementioned technical problems, the present invention provides the following technical solution:

[0014] This invention provides an integrated photovoltaic, energy storage, and charging sunroom system, comprising a sunroom with a rotatable rain cover on its roof; a photovoltaic module installed on the rain cover, its angle towards sunlight adjusted with the rotation of the rain cover; an energy storage module including an energy storage battery pack and a battery management system for storing excess energy from the photovoltaic module and releasing energy to loads when photovoltaic power is insufficient; a charging pile module and an in-room load module; the in-room load module being electrical equipment within the sunroom; a mains power access module for switching to grid power when the output power from the photovoltaic module and the energy storage module is insufficient; and an energy router including a data acquisition and input module for real-time data acquisition from the photovoltaic module and the energy storage module. The system includes: a photovoltaic module, an energy storage module, an indoor load module, and a mains power access module; a logic control module that dynamically generates energy dispatch strategies based on the collected electricity data to control the flow of electricity; an output execution module with a relay switch array for adjusting the electrical connection paths of the photovoltaic module, the energy storage module, the charging pile module, the indoor load module, and the mains power access module, for interconnection and interoperability of photovoltaic, energy storage, charging pile, load, and mains power; a communication module for bidirectional real-time communication between the photovoltaic module, the energy storage module, the charging pile module, and the energy router, and an interconnection interface for data interaction with user terminals; and a charging pile module for providing charging for electric vehicles and sending charging demand signals to the energy router.

[0015] In one embodiment, the power consumption data collected by the acquisition input module includes the power generation of the photovoltaic module, the remaining power and power supply of the energy storage module, the power demand of the charging pile module, the total power consumption of the indoor load module, and the mains power of the mains access module.

[0016] In one embodiment, the energy storage battery pack is electrically connected to the battery management system; the data acquisition and input module is electrically connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module; the communication module is electrically connected to the data acquisition and input module and the output execution module of the photovoltaic module, the battery management system, the charging pile module, and the energy router; and the output execution module is electrically connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module.

[0017] In one embodiment, the energy router is provided with a device interface for connecting to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module. When a module is connected to the device interface, the energy router automatically identifies and matches the module type, power parameters, and communication protocol of the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module. Based on the identified module type, the device interface dynamically switches the energy path to electrical input or electrical output through the IGBT device built into the energy router.

[0018] In one embodiment, the device interface is connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module via Modbus-TCP and CAN bus communication, so that the energy router can obtain the electrical parameters of the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module at a transmission latency of less than 100ms.

[0019] In one embodiment, the energy scheduling strategy of the logic control module is as follows: when there is sufficient sunlight, the photovoltaic module is used first to supply power to the charging pile module and the indoor load module. Excess energy is stored in the battery management system via the energy router and finally stored in the energy storage battery pack. When there is insufficient sunlight, the energy storage battery pack is called in sequence to supply energy storage or the mains power access module is switched to supply mains power according to the demand priority of the charging pile module and the indoor load module. When the battery management system detects that the remaining power SOC value of the energy storage battery pack is lower than 20% or the power demand of the charging pile module suddenly increases, the energy router is automatically triggered to call the mains power of the mains access module to supplement the power supply and generate an operation and maintenance early warning signal.

[0020] In one embodiment, the sunroom is equipped with a sunshade opening and closing unit for controlling the rotation of the rain cover and a first sensing unit for detecting sunlight intensity and direction. The power consumption of the sunshade opening and closing unit and the first sensing unit is supplied to the load module inside the room and electrically connected to the energy router. The energy router controls the sunshade opening and closing unit to drive the sunshade based on the power generation data of the photovoltaic module and the sunlight intensity and direction data detected by the first sensing unit, so as to make the photovoltaic module face the current sunlight direction detected by the first sensing unit, thereby increasing the power generation of the photovoltaic module.

[0021] The first sensing unit is located at the top of the sunroom and above the position of the rain cover.

[0022] In one embodiment, the roof of the sunroom is equipped with a rainwater collection unit and an air pump unit. The rainwater collection unit collects and stores rainwater in a storage tank via a drainage channel in the rain shelter during rain. The rainwater collection unit is connected to a tap water supply unit. The electricity used by the rainwater collection unit, the tap water supply unit, and the air pump unit is supplied by the load module inside the sunroom and electrically connected to the energy router. The energy router determines the dust coverage rate of the photovoltaic panels based on the sunlight intensity data detected by the first sensor unit and the power generation data of the photovoltaic panels. When the dust coverage rate of the photovoltaic panels is greater than 5%, the energy router controls the rainwater collection unit and the air pump unit to mix water and compressed air to form mixed water bubbles, which are then sprayed onto the photovoltaic panels to clean the dust, thereby improving the power generation efficiency of the photovoltaic panels. When the energy router receives data indicating that the rainwater level stored in the rainwater collection unit is 10% remaining, it controls the tap water supply unit to turn on and replenish water to the storage tank.

[0023] The top of the sunroom is also equipped with a cleaning gun, which is connected to the rainwater collection unit with a water outlet and the air pump unit with an air outlet, for mixing water and compressed air to form mixed water bubbles.

[0024] The cleaning gun is located at the top of the sunroom, above the rain cover.

[0025] In one embodiment, the energy storage module further includes a fire suppression unit; the sensing end of the fire suppression unit is electrically connected to the battery management system for acquiring thermal management data of the energy storage battery pack and receiving electrical energy; the fire suppression agent spraying end of the fire suppression unit is connected to the interior of the energy storage battery pack; when the sensing end of the fire suppression unit receives feedback from the battery management system that thermal runaway has occurred inside the energy storage battery pack, the fire suppression agent spraying end of the fire suppression unit sprays fire suppression agent into the energy storage battery pack to extinguish the fire, thereby cutting off or reducing the risk of thermal runaway of the energy storage battery pack.

[0026] A control method is also provided, including the following steps: S1, Initialization of the photovoltaic-storage-charging integrated sunroom system: The energy router performs a self-test on the device interface, checks the connection status, and establishes a communication link with the photovoltaic module, energy storage module, charging pile module, and indoor load module;

[0027] S2. Implement data acquisition: Synchronously acquire the photovoltaic power generation P obtained from the photovoltaic module. pv The remaining power SOC and power supply P obtained by the self-storage module Battery The required power P obtained by the self-charging pile module EV The total power P of the load obtained from the load module in the room Load ;

[0028] S3, Energy Dispatch Decision:

[0029] If P pv ≥(P EV +P Load In the self-consumption mode, the energy router prioritizes power supply to the charging pile module and the indoor load module, and the remaining energy is stored in the energy storage battery pack of the energy storage module.

[0030] If P pv <(P EV +P Load Furthermore, when the SOC of the energy storage module is ≥40%, the energy storage discharge mode is activated, and the combined power supply of energy storage and photovoltaic is allocated according to the preset ratio.

[0031] If P pv +P Battery <(P EV +P Load The system switches to a mixed power supply mode with mains power, and dynamically allocates the mixed power supply ratio of photovoltaic modules, energy storage modules, and mains access modules according to the power supply ratio algorithm.

[0032] S3.1 In the mixed power supply mode, the formula for calculating the quantitative mains power supplement in the mixed power supply ratio algorithm is: P G =max(0, (P) EV +P Load )-(P pv +η·P Battery ))

[0033] Where η is the energy storage discharge efficiency coefficient (0.9≤η≤0.95), P G This refers to the amount of mains power that needs to be replenished.

[0034] S3.2 When the photovoltaic power generation of the photovoltaic module is detected to fluctuate by more than ±30% within 10 minutes, the energy storage discharge mode is automatically switched and the photovoltaic power generation of the photovoltaic module is stored in the energy storage module.

[0035] S3.3 When the charging interface of the charging pile module is disconnected, the energy router will automatically redistribute the power to the load module or energy storage module in the room within 5 seconds.

[0036] S3.4 The energy router is connected to an active power filter to suppress harmonics in the power supply and control the THDu of the output power to be less than 3%.

[0037] S4. Dynamic grid connection / off-grid adjustment: The energy router controls the opening and closing of relays in the relay switch array group through the output execution module to adjust the grid connection / off-grid status of photovoltaic modules, energy storage modules, charging pile modules and mains access modules in real time.

[0038] S4.1 If, in the self-consumption mode, the energy storage module's battery pack stores energy to SOC > 95%, the energy router will connect the excess energy to the mains power network through the mains access module.

[0039] S4.2 When the mains power grid fails and the energy router detects that the mains access module cannot supply power, the mains access module and the charging pile module are disconnected from the grid, and the photovoltaic module and energy storage module are connected to the grid first to ensure power supply to the load modules in the room;

[0040] S5. User Network Interaction: The energy router uploads power consumption data to the cloud database via wired or wireless network through the interconnection interface. Users can use mobile terminals to query the real-time energy consumption of the charging pile module and the indoor load module, remotely start and stop the integrated photovoltaic storage and charging sunroom system, and pay the mains electricity bill online.

[0041] The beneficial effects of this invention are as follows:

[0042] This technical solution provides an integrated solar-energy storage-charging sunroom system, along with a control method based on this system, which has the following advantages:

[0043] (1) Improve energy utilization efficiency: By highly integrating photovoltaic modules with energy storage modules, charging pile modules and indoor load modules, the photovoltaic system can be self-generated and self-used first when there is sufficient sunlight, and the surplus electricity can be stored in the energy storage module, which can significantly improve the overall utilization rate of the photovoltaic system.

[0044] (2) Enhance power supply stability: During periods of insufficient sunlight or at night, the system can prioritize the energy storage module to discharge and supply power or the photovoltaic module and the energy storage module to supply power in combination, according to the scheduling strategy of the energy router; when the energy storage is insufficient, it will automatically connect to the mains power supply to participate in the power supply, which effectively solves the shortcomings of traditional photovoltaic sunrooms in terms of power supply continuity and stability.

[0045] (3) Intelligent scheduling and control: By collecting multi-module data through the energy router, intelligent analysis and output control are achieved to realize dynamic energy allocation of the power consumption modules of the charging pile module and the load module in the room, so that the power supply of the system has a higher self-adaptability and intelligent level, and improves the user experience.

[0046] (4) Space utilization optimization: The energy storage module and charging pile module are installed on the ground on the side of the door of the sunroom. The photovoltaic module, energy router and mains access module are installed on the roof and walls respectively, and are reasonably integrated into the sunroom structure. In particular, the adjustable-angle rain cover design has the functions of lighting, power generation and space saving, which solves the problem of large size and large space occupation of energy storage equipment.

[0047] (5) Two-way communication and remote control: Through the communication module, users can connect to the user terminal, monitor the power usage in real time, realize remote control and energy consumption query, and improve the intelligence and informatization level of the system.

[0048] (6) Achieve multi-energy coordinated operation: The system has three power supply paths: photovoltaic power generation, energy storage battery pack and mains power. It can intelligently switch between them under different operating scenarios to ensure the load power consumption of the sunroom and the charging operation of the charging pile module throughout the day.

[0049] In summary, this invention has significant advantages in terms of power supply continuity, energy utilization efficiency, intelligent control, and system integration, and is particularly suitable for promotion and application in fields such as new energy smart homes and green buildings. Attached Figure Description

[0050] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a schematic diagram of the structure of each module of the integrated solar storage and charging sunroom system according to the first embodiment of the present invention;

[0052] Figure 2 This is a schematic diagram of the structure of the shading opening and closing unit and the first sensing unit connected to the indoor load module in the first embodiment of the present invention;

[0053] Figure 3 This is a schematic diagram of the structure of each module of the integrated solar storage and charging sunroom system according to the second embodiment of the present invention;

[0054] Figure 4This is a schematic diagram of the structure of each module of the integrated solar storage and charging sunroom system according to the third embodiment of the present invention. Detailed Implementation

[0055] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0056] Currently, photovoltaic (PV) sunrooms primarily convert solar energy into electricity by installing solar panels on the roof or facade, powering indoor lighting, air conditioning, and other equipment. However, traditional PV sunrooms suffer from the following problems: First, PV power generation is intermittent and unstable, greatly affected by weather and diurnal variations, making it difficult to achieve continuous and stable power supply. Second, the lack of effective energy storage systems results in excess energy being wasted. Third, the failure to integrate electric vehicle charging functionality fails to meet the charging needs of users with new energy vehicles. Furthermore, existing integrated PV-storage-charging systems still have room for improvement in terms of integration, intelligence, and user experience. For example, some systems fail to adequately consider architectural aesthetics and space utilization in their design; energy storage devices occupy significant space, impacting building layout. Simultaneously, the intelligence level of the energy management system is limited, unable to dynamically adjust energy allocation strategies based on user needs and energy prices.

[0057] In view of this, a specific embodiment provides an integrated photovoltaic, energy storage, and charging sunroom system and control method. The system includes an openable sunroom structure, adjustable-angle photovoltaic modules laid on a rain shelter, an energy storage module for storing excess energy, a charging pile module for charging electric vehicles, an in-room load module, a mains power access module, and an energy router. The energy router includes input acquisition, logic control, output execution, and communication modules, capable of collecting real-time power consumption data from each module, formulating energy scheduling strategies, and dynamically adjusting energy paths through a relay switch array to achieve switching between photovoltaic power generation, energy storage, charging piles, loads, and mains power supply. User terminals can access the system via an interconnect interface to achieve remote monitoring, control, and energy consumption query. This integrated photovoltaic, energy storage, and charging sunroom system effectively solves the technical problems of unstable power supply, low energy utilization, and low integration in existing photovoltaic sunrooms, making it suitable for sunroom construction and new energy application scenarios.

[0058] The first implementation of an integrated solar storage and charging sunroom system, for example Figure 1As shown, the system includes a sunroom with a rotatable rain cover on its roof; photovoltaic modules installed on the rain cover, adjusting their angle towards sunlight as the cover rotates; an energy storage module, including a battery pack and battery management system, for storing excess energy from the photovoltaic modules and releasing it to loads when photovoltaic power is insufficient; a charging pile module and an in-room load module; the in-room load module contains the electrical equipment within the sunroom; a mains power connection module for switching to grid power when the output power from the photovoltaic and energy storage modules is insufficient; and an energy router, including an input acquisition module for real-time data acquisition from the photovoltaic modules, energy storage modules, and charging piles. The system includes: a power consumption data module for the photovoltaic module, indoor load module, and mains access module; a logic control module that dynamically generates energy dispatch strategies based on the collected power consumption data to control the flow of power; an output execution module with a relay switch array for adjusting the electrical connection paths of the photovoltaic module, energy storage module, charging pile module, indoor load module, and mains access module, for interconnection between photovoltaic, energy storage, charging pile, load, and mains power; a communication module for bidirectional real-time communication between the photovoltaic module, energy storage module, charging pile module, and energy router, and an interconnection interface for data interaction with user terminals; and a charging pile module for providing charging for electric vehicles and sending charging demand signals to the energy router.

[0059] Specifically, the electricity consumption data acquired by the aforementioned data acquisition and input module includes the power generation of the photovoltaic module, the remaining power and power supply of the energy storage module, the power demand of the charging pile module, the total power consumption of the indoor load module, and the mains power of the mains access module.

[0060] The energy dispatch strategy for the above-mentioned logic control module is as follows: when there is sufficient sunlight, the photovoltaic module is used first to supply power to the charging pile module and the indoor load module. Excess electrical energy is stored in the battery management system via the energy router and finally stored in the energy storage battery pack.

[0061] When there is insufficient light, the energy storage battery pack is called in sequence to supply energy storage or the mains power access module is switched to supply mains power according to the priority of the charging pile module and the indoor load module.

[0062] When the battery management system detects that the remaining SOC value of the energy storage battery pack is below 20% or the power demand of the charging pile module suddenly increases, the energy router is automatically triggered to call the mains power of the mains access module for supplementary power supply and generate an operation and maintenance warning signal.

[0063] The integrated solar-energy storage-charging sunroom system of this technical solution, combined with the control method implemented based on the integrated solar-energy storage-charging sunroom system, has the following advantages:

[0064] Improve energy efficiency: By highly integrating photovoltaic modules with energy storage modules, charging pile modules, and indoor load modules, the photovoltaic system can prioritize self-consumption when there is sufficient sunlight, and store surplus electricity in the energy storage modules, which can significantly improve the overall utilization rate of the photovoltaic system.

[0065] Enhanced power supply stability: During periods of insufficient sunlight or at night, the system can prioritize power supply from the energy storage module or from a combination of the photovoltaic module and the energy storage module, based on the energy router's scheduling strategy. When energy storage is insufficient, it automatically connects to the mains power supply, effectively addressing the shortcomings of traditional photovoltaic sunrooms in terms of power supply continuity and stability.

[0066] Intelligent scheduling and control: By collecting data from multiple modules through the energy router, intelligently analyzing and outputting control, dynamic energy allocation is achieved for the charging pile module and the indoor load module, enabling the system's power supply to have higher adaptability and intelligence, and improving the user experience.

[0067] Space utilization optimization: The energy storage module and charging pile module are installed on the ground on the side of the sunroom door, while the photovoltaic module, energy router and mains power access module are installed on the roof and walls respectively, and are rationally integrated into the sunroom structure. In particular, the adjustable-angle rain cover design combines lighting, power generation and space saving functions, solving the problem of large size and large space occupation of energy storage equipment.

[0068] Two-way communication and remote control: Through the communication module, users can connect to the user terminal, monitor the power usage in real time, realize remote control and energy consumption query, and improve the intelligence and informatization level of the system.

[0069] Achieving multi-energy coordinated operation: The system has three power supply paths: photovoltaic power generation, energy storage battery pack and mains power, and can intelligently switch between them under different operating scenarios to ensure the load power consumption of the sunroom and the charging operation of the charging pile module throughout the day.

[0070] Regarding the specific connection settings for the aforementioned photovoltaic module, energy storage module, charging pile module, indoor load module, energy router, and mains power access module, this implementation example... Figure 1 As shown,

[0071] The energy storage battery pack is electrically connected to the battery management system; the data acquisition module is electrically connected to the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module; the communication module is electrically connected to the data acquisition and output execution modules of the photovoltaic module, battery management system, charging pile module, and energy router; the output execution module is electrically connected to the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module.

[0072] When applied, the data acquisition module is electrically connected to the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module; the communication module is electrically connected to the data acquisition and output execution modules of the photovoltaic module, battery management system, charging pile module, and energy router.

[0073] The energy router is equipped with a device interface for connecting photovoltaic modules, battery management systems, charging pile modules, indoor load modules, and mains power access modules. When a module is connected to the device interface, the energy router automatically identifies and matches the module type, power parameters, and communication protocol of the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module. Based on the identified module type, the device interface dynamically switches the energy path to electrical input or electrical output through the IGBT devices built into the energy router.

[0074] The device interface communicates with the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module via Modbus-TCP and CAN bus, enabling the energy router to obtain the electrical parameters of the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module at a transmission latency of less than 100ms.

[0075] When applied, the main power transmission lines of the photovoltaic module, battery management system, charging pile module, indoor load module and mains power access module are all connected to the relay switch array group of the output execution module. Multiple relays in the relay switch array group are electrically connected to multiple device interfaces.

[0076] The connectors of the photovoltaic module, battery management system, charging pile module, indoor load module, and mains power access module have integrated main power transmission lines and Modbus-TCP and CAN bus communication connection lines.

[0077] The photovoltaic module integrates a photovoltaic inverter, and the battery management system of the energy storage module also integrates an energy storage output inverter. The electrical energy output from the photovoltaic module and the energy storage module to the energy router is converted into AC power with the same frequency as the mains power. The energy router then uniformly schedules the electrical energy input from the photovoltaic module, the energy storage module, and the mains power access module.

[0078] As one alternative implementation method

[0079] Regarding the aforementioned rotating opening and closing structure of the rain shelter and the structure for adjusting the angle of the photovoltaic module toward sunlight as the rain shelter rotates, this embodiment is, for example... Figure 2 As shown, the sunroom is equipped with a sunshade opening and closing unit that controls the rotation of the rain cover and a first sensor unit that detects the intensity and direction of sunlight. The power consumption of the sunshade opening and closing unit and the first sensor unit is supplied by the load module inside the room and is electrically connected to the energy router.

[0080] The energy router controls the shading opening and closing unit to drive the shading plate based on the power generation data of the photovoltaic module and the sunlight intensity and direction data detected by the first sensing unit, so that the photovoltaic module faces the current sunlight direction detected by the first sensing unit, thereby increasing the power generation of the photovoltaic module.

[0081] When in use, the first sensing unit is positioned on the top of the sunroom, above the rain cover.

[0082] The second implementation example of an integrated solar storage and charging sunroom system Figure 3 As shown, the difference between this embodiment and the first embodiment is that the roof of the sunroom is equipped with a rainwater collection unit and an air pump unit; the rainwater collection unit collects and stores rainwater in a water storage tank through the water channel of the rain cover when it rains; the rainwater collection unit is connected to a tap water supply unit; the electricity for the rainwater collection unit, the tap water supply unit and the air pump unit is supplied by the load module inside the room and is electrically connected to the energy router.

[0083] The energy router determines the dust coverage rate of the photovoltaic panels based on the sunlight intensity data detected by the first sensing unit and the power generation data of the photovoltaic panels. When the dust coverage rate of the photovoltaic panels is greater than 5%, the energy router controls the rainwater collection unit and the air pump unit to mix water and compressed air to form mixed water bubbles, which are then sprayed onto the photovoltaic panels to clean the dust and improve the power generation efficiency of the photovoltaic panels. When the energy router receives data that the rainwater level stored in the rainwater collection unit is 10% remaining, it controls the tap water supply unit to turn on and replenish water to the water storage tank.

[0084] During application, a cleaning gun is installed on the top of the sunroom. The cleaning gun is connected to the rainwater collection unit with a water outlet and the air pump unit with an air outlet, used to mix water and compressed air to form mixed bubbles. The cleaning gun is located on the top of the sunroom, above the rain cover.

[0085] The third implementation example of an integrated solar storage and charging sunroom system Figure 4 As shown, the difference between this embodiment and the first embodiment is that the energy storage module also includes a fire-fighting unit; the sensing end of the fire-fighting unit is electrically connected to the battery management system for acquiring thermal management data of the energy storage battery pack and receiving electrical energy; the fire-fighting agent spraying end of the fire-fighting unit is connected to the interior of the energy storage battery pack.

[0086] When the fire suppression unit receives feedback from the battery management system that thermal runaway has occurred inside the energy storage battery pack, the fire suppression unit's fire extinguishing agent spraying end sprays fire extinguishing agent into the energy storage battery pack to extinguish the fire, thereby cutting off or reducing the risk of thermal runaway of the energy storage battery pack.

[0087] Based on the above embodiments of the integrated photovoltaic, energy storage and charging sunroom system, a control method is provided, including the following steps: S1, Initialization of the integrated photovoltaic, energy storage and charging sunroom system: The energy router performs a self-test on the device interface, checks the connection status, and establishes communication links with the photovoltaic module, energy storage module, charging pile module and indoor load module;

[0088] S2. Implement data acquisition: Synchronously acquire the photovoltaic power generation P obtained from the photovoltaic module. pv The remaining power SOC and power supply P obtained by the self-storage module Battery The required power P obtained by the self-charging pile module EV The total power P of the load obtained from the load module in the room Load ;

[0089] S3, Energy Dispatch Decision:

[0090] If P pv ≥(P EV +P Load In the self-consumption mode, the energy router prioritizes power supply to the charging pile module and the indoor load module, and the remaining energy is stored in the energy storage battery pack of the energy storage module.

[0091] If P pv <(P EV +P Load Furthermore, when the SOC of the energy storage module is ≥40%, the energy storage discharge mode is activated, and the combined power supply of energy storage and photovoltaic is allocated according to the preset ratio.

[0092] If P pv +P Battery <(P EV +P Load The system switches to a mixed power supply mode with mains power, and dynamically allocates the mixed power supply ratio of photovoltaic modules, energy storage modules, and mains access modules according to the power supply ratio algorithm.

[0093] S3.1 In the mixed power supply mode, the formula for calculating the quantitative mains power supplement in the mixed power supply ratio algorithm is: P G =max(0, (P) EV +P Load )-(P pv +η·P Battery ))

[0094] Where η is the energy storage discharge efficiency coefficient (0.9≤η≤0.95), P G This refers to the amount of mains power that needs to be replenished.

[0095] S3.2 When the photovoltaic power generation of the photovoltaic module is detected to fluctuate by more than ±30% within 10 minutes, the energy storage discharge mode is automatically switched and the photovoltaic power generation of the photovoltaic module is stored in the energy storage module.

[0096] S3.3 When the charging interface of the charging pile module is disconnected, the energy router will automatically redistribute the power to the load module or energy storage module in the room within 5 seconds.

[0097] S3.4 The energy router is connected to an active power filter to suppress harmonics in the power supply and control the THDu of the output power to be less than 3%.

[0098] S4. Dynamic grid connection / off-grid adjustment: The energy router controls the opening and closing of relays in the relay switch array group through the output execution module to adjust the grid connection / off-grid status of photovoltaic modules, energy storage modules, charging pile modules and mains access modules in real time.

[0099] S4.1 If, in the self-consumption mode, the energy storage module's battery pack stores energy to SOC > 95%, the energy router will connect the excess energy to the mains power network through the mains access module.

[0100] S4.2 When the mains power grid fails and the energy router detects that the mains access module cannot supply power, the mains access module and the charging pile module are disconnected from the grid, and the photovoltaic module and energy storage module are connected to the grid first to ensure power supply to the load modules in the room;

[0101] S5. User Network Interaction: The energy router uploads power consumption data to the cloud database via wired or wireless network through the interconnection interface. Users can use mobile terminals to query the real-time energy consumption of the charging pile module and the indoor load module, remotely start and stop the integrated photovoltaic storage and charging sunroom system, and pay the mains electricity bill online.

[0102] In application, this technical solution, based on an integrated photovoltaic, energy storage, and charging sunroom system combined with control methods, achieves improved power supply stability, higher energy utilization, more convenient operation, and safer setup compared to existing technologies. Specifically:

[0103] Improved power supply stability: By dynamically scheduling power through the energy router, the power generation capacity of photovoltaic power generation, energy storage capacity and load demand are matched in real time, which solves the problem of power supply fluctuation caused by the intermittency of photovoltaic power generation.

[0104] When there is insufficient sunlight, the system prioritizes the use of energy storage power and combines it with a seamless switching mechanism to the mains power to ensure the continuous and stable operation of the charging piles and indoor loads. This avoids the risk of power outages caused by insufficient energy storage capacity or scheduling delays in traditional systems, thereby preventing power supply stability defects and improving power supply stability.

[0105] The energy router integrates an active power filter, which can control the output voltage harmonic distortion rate (THDu) to within 3%, effectively protecting sensitive electrical equipment and preventing damage to electrical appliances.

[0106] Improved power utilization: The photovoltaic panel structure with adjustable angle according to the rain cover allows the photovoltaic panel to receive sunlight for a longer period of time, increasing the average daily power generation efficiency by 15%-20% and reducing the photovoltaic curtailment rate.

[0107] After the energy storage module is reduced in size by 30%-40%, it is installed in the sunroom. The battery management system precisely controls the charging and discharging depth of the energy storage battery pack, which extends the battery life of the energy storage battery pack to more than 10 years and reduces the maintenance cost throughout the entire life cycle.

[0108] Improved system integration: The energy router automatically identifies the connected modules through the device interface and realizes rapid networking of photovoltaic, energy storage, charging piles, indoor loads and mains power access through standardized communication protocols. The system deployment time is greatly reduced, thereby reducing the installation and commissioning costs of the integrated photovoltaic-storage-charging sunroom system.

[0109] Through dual-channel bus technology, the energy router can respond to changes in device status within 100ms. For example, if a charging pile is disconnected, it can quickly and automatically adjust the power supply structure of the system based on the off-grid charging pile module to ensure stable power supply, reduce power consumption, and improve power utilization.

[0110] Users can remotely monitor energy consumption data and set power consumption priorities via mobile terminals, and control the shading opening and closing unit, rainwater collection unit, tap water supply unit and air pump unit to perform coordinated self-cleaning of the photovoltaic panels of the photovoltaic module, further improving operation and maintenance efficiency.

[0111] Adaptive enhancement of photovoltaic modules and charging pile modules: The photovoltaic module uses a rainwater collection unit, a tap water supply unit, and an air pump unit for cleaning. By using rainwater collection and air pump mixed spray cleaning, dust on the surface of the photovoltaic panel can be removed without a large amount of external water source, so that the photoelectric conversion efficiency degradation rate of the photovoltaic panel is controlled within 2% per year.

[0112] Enhanced safety of energy storage modules: The energy storage modules use high-energy-density cells to form energy storage battery packs, compact fire-fighting units, and battery management systems to manage the thermal of the energy storage battery packs. This reduces the space occupied by the energy storage modules in the sunroom, thereby greatly improving the adaptability of energy storage modules to scenarios with limited space in the sunroom.

[0113] By establishing a safety protection mechanism through the fire protection unit, the explosion rate of the integrated photovoltaic, energy storage and charging sunroom system is reduced by 90%. The fire protection unit can ensure the safety of the sunroom under extreme working conditions by the energy storage module.

[0114] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A solar-powered, energy-storage-charging integrated sunroom system and control method, characterized in that, Includes a sunroom, the roof of which has a rotatable rain cover; And a photovoltaic module, which is laid on the rain shelter and adjusts its angle toward the sun as the rain shelter rotates; And an energy storage module, including an energy storage battery pack and a battery management system, for storing excess electrical energy of the photovoltaic module and releasing electrical energy to the load when photovoltaic power supply is insufficient; In addition, there are charging pile modules and indoor load modules; the indoor load modules are the electrical equipment inside the sunroom. And a mains power access module, used to switch to grid power supply when the output power supply of the photovoltaic module and the energy storage module is insufficient; The system also includes an energy router, comprising an input module for real-time acquisition of power consumption data from the photovoltaic module, energy storage module, charging pile module, indoor load module, and mains access module; a logic control module for dynamically generating energy dispatch strategies based on the acquired power consumption data to control the flow of power; an output execution module with a relay switch array for adjusting the electrical connection paths of the photovoltaic module, energy storage module, charging pile module, indoor load module, and mains access module, for interconnection and interoperability of photovoltaic, energy storage, charging pile, load, and mains power; and a communication module for bidirectional real-time communication between the photovoltaic module, energy storage module, charging pile module, and energy router, and an interconnection interface for data interaction with user terminals. The charging pile module is used to provide charging for electric vehicles and send charging demand signals to the energy router. The control method includes the following steps: S1, Initialization of the photovoltaic-storage-charging integrated sunroom system: The energy router performs a self-test on the device interface, checks the connection status, and establishes communication links with the photovoltaic module, energy storage module, charging pile module, and indoor load module; S2. Implement data acquisition: Synchronously acquire the photovoltaic power generation obtained from the photovoltaic module. P pv Remaining electricity obtained from the self-storage module SOC and power supply P Battery The required power obtained by charging the self-charging pile module P EV Total power consumption of the load obtained from the load modules in the room P Load ; S3, Energy Dispatch Decision: like P pv ≥( P EV + P Load In the self-consumption mode, the energy router prioritizes power supply to the charging pile module and the indoor load module, and the remaining energy is stored in the energy storage battery pack of the energy storage module. like P pv < ( P EV + P Load And the energy storage module SOC When the power consumption reaches ≥40%, the energy storage discharge mode is activated, and the combined power supply of energy storage and photovoltaic is allocated according to the preset ratio. like P pv + P Battery < ( P EV + P Load Switching to a mixed power supply mode with mains power, and dynamically allocating the mixed power supply ratio of photovoltaic modules, energy storage modules, and mains access modules according to the power supply ratio algorithm; S3.1 In the mixed power supply mode, the formula for calculating the quantitative mains power supplement in the mixed power supply ratio algorithm is as follows: P G =max(0, ( P EV + P Load ) - ( P pv + η·P Battery )) in, η The energy storage discharge efficiency coefficient (0.9≤ η ≤0.95), P G This refers to the amount of mains power that needs to be replenished. S3.2 When the photovoltaic power generation of the photovoltaic module is detected to fluctuate by more than ±30% within 10 minutes, the energy storage discharge mode is automatically switched and the photovoltaic power generation of the photovoltaic module is stored in the energy storage module. S3.3 When the charging interface of the charging pile module is disconnected, the energy router will automatically redistribute the power to the load module or energy storage module in the room within 5 seconds. S3.4 The energy router is connected to an active power filter to suppress harmonics in the power supply and control the THDu of the output power to be less than 3%. S4. Dynamic grid connection / off-grid adjustment: The energy router controls the opening and closing of relays in the relay switch array group through the output execution module to adjust the grid connection / off-grid status of photovoltaic modules, energy storage modules, charging pile modules and mains access modules in real time. S4.1, If ​​in self-consumption mode, the energy stored in the energy storage battery pack of the energy storage module reaches... SOC When the power consumption is greater than 95%, the energy router will connect the excess power to the mains power network through the mains power access module; S4.2 When the mains power grid fails and the energy router detects that the mains access module cannot supply power, the mains access module and the charging pile module are disconnected from the grid, and the photovoltaic module and energy storage module are connected to the grid first to ensure power supply to the load modules in the room; S5. User Network Interaction: The energy router uploads power consumption data to the cloud database via wired or wireless network through the interconnection interface. Users can use mobile terminals to query the real-time energy consumption of the charging pile module and the indoor load module, remotely start and stop the integrated photovoltaic storage and charging sunroom system, and pay the mains electricity bill online.

2. The integrated solar storage and charging sunroom system according to claim 1, characterized in that, The power consumption data collected by the data acquisition and input module includes the power generation of the photovoltaic module, the remaining power and power supply of the energy storage module, the power demand of the charging pile module, the total power consumption of the indoor load module, and the mains power of the mains access module.

3. The integrated solar storage and charging sunroom system according to claim 1, characterized in that, The energy storage battery pack is electrically connected to the battery management system; The data acquisition and input module is electrically connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module. The communication module is electrically connected to the photovoltaic module, the battery management system, the charging pile module, and the energy router's data acquisition and input module and output execution module; The output execution module is electrically connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module.

4. The integrated solar storage and charging sunroom system according to claim 3, characterized in that, The energy router is equipped with a device interface, which is used to connect to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module. When the device interface access module is connected, the energy router automatically identifies and matches the module type, power parameters, and communication protocol of the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module; The device interface dynamically switches the energy path to electrical input or electrical output via the IGBT device built into the energy router, based on the type of module being connected.

5. The integrated solar storage and charging sunroom system according to claim 4, characterized in that, The device interface is connected to the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module via Modbus-TCP and CAN bus communication, enabling the energy router to acquire the electrical parameters of the photovoltaic module, the battery management system, the charging pile module, the indoor load module, and the mains power access module at a transmission latency of less than 100ms.

6. The integrated solar storage and charging sunroom system according to claim 5, characterized in that, The energy scheduling strategy of the logic control module is as follows: When there is sufficient sunlight, the photovoltaic module is used first to supply power to the charging pile module and the indoor load module. Excess electrical energy is stored in the battery management system via the energy router and finally stored in the energy storage battery pack. When there is insufficient light, the energy storage battery pack is called to supply energy storage or the mains power access module is switched to supply mains power according to the demand priority of the charging pile module and the indoor load module. When the battery management system detects that the remaining SOC value of the energy storage battery pack is lower than 20% or the power demand of the charging pile module suddenly increases, the energy router is automatically triggered to call the mains power of the mains access module for supplementary power supply and generate an operation and maintenance early warning signal.

7. The integrated solar storage and charging sunroom system according to claim 1, characterized in that, The sunroom is equipped with a sunshade opening and closing unit that controls the rotation of the rain cover and a first sensing unit that detects the intensity and direction of sunlight. The power consumption of the sunshade opening and closing unit and the first sensing unit is supplied by the load module inside the room and is electrically connected to the energy router. The energy router controls the shading opening and closing unit to drive the rain shield based on the power generation data of the photovoltaic module and the sunlight intensity and direction data detected by the first sensing unit, so that the photovoltaic module faces the current sunlight direction detected by the first sensing unit, thereby increasing the power generation of the photovoltaic module.

8. The integrated solar storage and charging sunroom system according to claim 7, characterized in that, The roof of the sunroom is equipped with a rainwater collection unit and an air pump unit. When it rains, the rainwater collection unit collects and stores rainwater in a water storage tank through the water channel of the rain cover. The rainwater collection unit is connected to a tap water supply unit. The electricity for the rainwater collection unit, the tap water supply unit, and the air pump unit is supplied by the load module inside the room and is electrically connected to the energy router. The energy router determines the dust coverage rate of the photovoltaic panels on the photovoltaic module based on the sunlight intensity data detected by the first sensing unit and the power generation data of the photovoltaic module. When the dust coverage of the photovoltaic panel is greater than 5%, the energy router controls the rainwater collection unit and the air pump unit to mix water and compressed air to form mixed water bubbles, which are then sprayed onto the photovoltaic panel to clean the dust on the photovoltaic panel, thereby improving the power generation efficiency of the photovoltaic panel. When the energy router receives data indicating that the rainwater level stored in the rainwater collection unit is 10% remaining, it controls the tap water supply unit to turn on and replenish water to the water storage tank.

9. The integrated solar storage and charging sunroom system according to claim 8, characterized in that, The energy storage module also includes a fire suppression unit; the sensing end of the fire suppression unit is electrically connected to the battery management system and is used to acquire thermal management data of the energy storage battery pack and receive electrical energy. The fire-fighting agent outlet of the fire-fighting unit is connected to the interior of the energy storage battery pack; When the sensing end of the fire-fighting unit receives feedback from the battery management system that thermal runaway has occurred inside the energy storage battery pack, the fire-fighting agent spraying end of the fire-fighting unit sprays fire-fighting agent into the energy storage battery pack to extinguish the fire, thereby cutting off or reducing the risk of thermal runaway of the energy storage battery pack.

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