Container type light storage power generation platform and control method thereof

Abstract

The invention discloses a container type light storage power generation platform which is characterized in that the platform comprises a container prefabricated cabin and a unit photovoltaic array, and an energy storage battery pack and an energy management system are arranged in the container prefabricated cabin; the unit photovoltaic arrays comprise five unit photovoltaic arrays, and the first unit photovoltaic array is a fixed photovoltaic array arranged on the top of the box; the second unit photovoltaic array and the third unit photovoltaic array are double-folding photovoltaic arrays which are symmetrically arranged on the two sides of the box body respectively. The fourth unit photovoltaic array and the fifth unit photovoltaic array are vertical plate extension type folding photovoltaic arrays arranged in the box. According to the invention, through collaborative innovation in three aspects of a mechanical structure, intelligent control and energy management, a'fixed, heavy and passive 'mode of a traditional photovoltaic power station is successfully converted into a'movable, flexible and intelligent' new form, so that a light storage power generation platform has good flexibility, economical efficiency, reliability and functionality.

Description

Technical Field

[0001] This invention relates to a containerized photovoltaic energy storage power generation platform and its control method, belonging to the field of photovoltaic power generation technology. Background Technology

[0002] As the global energy structure transitions towards cleaner and lower-carbon energy, the development and utilization of renewable energy has become central to the energy strategies of countries worldwide. Solar energy, as one of the most abundant and widely distributed clean energy sources, plays a crucial role in reducing dependence on fossil fuels and lowering greenhouse gas emissions through large-scale application. Photovoltaic power generation technology, as a primary form of solar energy utilization, has experienced rapid development and widespread application in recent years.

[0003] However, current mainstream photovoltaic power generation systems, especially large-scale ground-mounted power plants and distributed fixed systems, have gradually revealed many technical bottlenecks and limitations in the process of actual promotion and application, making it difficult to meet the increasingly diverse application scenarios:

[0004] Land resource occupation is a prominent issue: Traditional fixed photovoltaic power generation systems require large areas of flat land with excellent sunlight conditions. In areas where land resources are increasingly scarce, such as urban peripheries, ports, and specific industrial parks, site selection difficulties and high land costs are significant factors restricting their development. Furthermore, large-scale installation of photovoltaic panels in ecologically sensitive areas or farmland may trigger disputes regarding environmental protection and land use.

[0005] Poor system flexibility and mobility: Once installed, fixed photovoltaic (PV) brackets are difficult to move, making them unsuitable for temporary, phased, or mobile power demands, such as power supply for major events, emergency rescue, and temporary construction. Furthermore, brackets with fixed tilt angles or limited angle adjustments cannot optimize solar irradiance reception in real time, thus limiting overall power generation efficiency.

[0006] Insufficient environmental adaptability and reliability: In harsh natural environments such as coastal areas, Gobi Desert, and high-altitude frigid zones, fixed photovoltaic systems face severe challenges from typhoons, sandstorms, blizzards, and salt spray. Existing support structures are prone to deformation or overturning under strong winds, and photovoltaic modules also suffer from risks such as microcracks and hot spots. The systems require frequent and costly maintenance and lack effective active protection mechanisms.

[0007] High operation and maintenance costs and low efficiency: Large-scale photovoltaic power plants typically require regular manual inspections, cleaning, and maintenance, especially in remote areas where labor and transportation costs are enormous. Traditional operation and maintenance models have slow response times, and delays in fault detection and handling affect power generation revenue.

[0008] Unstable energy output and fragmented energy storage scheduling: Solar power generation is intermittent and volatile, directly affecting the stability of the power grid. Although "photovoltaics + energy storage" has become an industry consensus, existing technologies mostly adopt a model of separate construction of power generation units and energy storage systems. There is a disconnect between the two in planning, construction and scheduling, which fails to achieve true deep synergy and integrated intelligent control, thus limiting the overall energy efficiency and economic benefits of the system.

[0009] To address these issues, some attempts have emerged in the industry, such as vehicle-mounted mobile photovoltaic power stations or small photovoltaic trailers. However, these solutions typically suffer from limited power generation, insufficient structural strength and stability, small energy storage capacity, and low automation, making it difficult to achieve large-scale, engineered applications and meet the urgent needs for medium- to high-power mobile clean energy in scenarios such as zero-carbon ports and large-scale emergency response.

[0010] Therefore, there is an urgent need in this field for a new type of photovoltaic power generation platform that integrates high-efficiency power generation, large-capacity energy storage, and intelligent control, and has the characteristics of rapid deployment, flexible mobility, proactive environmental adaptation, and low operation and maintenance costs, in order to overcome the shortcomings of existing technologies. Summary of the Invention

[0011] The purpose of this invention is to provide a containerized photovoltaic-storage power generation platform and a control method for the containerized photovoltaic-storage power generation platform. This invention overcomes the inherent defects of existing fixed photovoltaic power generation systems, such as large footprint, poor flexibility, high operation and maintenance costs, weak environmental adaptability, and inconvenience in energy storage and dispatch. It provides a highly integrated, flexibly deployable, intelligent and controllable containerized photovoltaic-storage power generation platform and its control method.

[0012] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a containerized photovoltaic energy storage power generation platform, comprising:

[0013] The container prefabrication module is equipped with an energy storage battery pack and an energy management system.

[0014] A unit photovoltaic array, comprising a unit photovoltaic array 1, a unit photovoltaic array 2, a unit photovoltaic array 3, a unit photovoltaic array 4, and a unit photovoltaic array 5;

[0015] The photovoltaic array of Unit 1 is a fixed photovoltaic array installed on the top of the prefabricated container cabin;

[0016] The photovoltaic arrays of Unit 2 and Unit 3 are double-fold photovoltaic arrays symmetrically arranged on both sides of the prefabricated container cabin, and can be unfolded and their angle adjusted in the direction of both sides of the prefabricated container cabin.

[0017] The photovoltaic arrays of Unit 4 and Unit 5 are vertically extended folding photovoltaic arrays installed in the cavity of the prefabricated container cabin, which can slide out of the container cabin and unfold to both sides.

[0018] An energy management system is used to automatically control the deployment, retraction, and power scheduling of photovoltaic arrays based on environmental data.

[0019] The aforementioned containerized photovoltaic-storage power generation platform also includes a thermal management system, which comprises multiple independent air ducts. The prefabricated container cabin is divided into an equipment cabin, a battery cabin, and an inverter cabin. Each independent air duct is connected to the equipment cabin, battery cabin, and inverter cabin respectively. Each independent air duct is equipped with louvers and explosion-proof fans. The four-unit photovoltaic array and the five-unit photovoltaic array are located in the equipment cabin. The energy storage battery pack is located in the battery cabin. An inverter is located in the inverter cabin.

[0020] The aforementioned containerized photovoltaic energy storage platform includes a fixed photovoltaic array comprising multiple first photovoltaic panels, which are directly fixed to the top surface of the prefabricated container cabin using fasteners.

[0021] The aforementioned containerized photovoltaic energy storage platform includes a double-folded photovoltaic array comprising multiple second photovoltaic panels. These second photovoltaic panels are interconnected via three-stage hinges to form a foldable panel assembly. The foldable panel assembly is fitted onto both sides of the prefabricated container cabin. A winch is installed on the top of the prefabricated container cabin, and a steel wire rope is wound and connected to the winch. The other end of the steel wire rope is connected to the outer end of the foldable panel assembly.

[0022] The aforementioned containerized photovoltaic and energy storage power generation platform includes a vertically extending foldable photovoltaic array comprising foldable photovoltaic panels and steel structure panels. The foldable photovoltaic panels are installed on both sides of the steel structure panels. A sliding rail mechanism is provided at the bottom of the prefabricated container cavity. The steel structure panels are slidably installed in the prefabricated container cavity via the sliding rail mechanism, and the steel structure panels can be pushed out as a whole along the prefabricated container cavity via the sliding rail mechanism, so that the foldable photovoltaic panels can be unfolded.

[0023] The aforementioned containerized photovoltaic energy storage power generation platform includes an energy management system comprising a PLC controller and monitoring sensors. The monitoring sensors are used to monitor irradiance, wind speed, temperature, and battery SOC in real time. The PLC controller receives and monitors the information from the sensors and can automatically execute the deployment or retraction of the unit photovoltaic array.

[0024] A control method for a containerized photovoltaic-storage power generation platform includes the following steps:

[0025] S1. The system powers on and performs an initialization self-test;

[0026] S2. Read environmental sensor data, including irradiance, wind speed, temperature and battery state of charge (SOC);

[0027] S3. Determine the current conditions based on the environmental sensor data:

[0028] If the wind load exceeds the first preset threshold, the wind protection mode is activated, and the photovoltaic array of the control unit is sequentially retracted.

[0029] If the light intensity is lower than the second preset threshold, the night mode is activated, and the photovoltaic array of the control unit is closed in sequence.

[0030] If environmental conditions are normal, the control unit will deploy the photovoltaic array in sequence and adjust the angle of the corresponding photovoltaic panels by means of steel wire ropes, while performing maximum power point tracking (MPPT) to optimize power generation.

[0031] S4. Monitor operating status and load demand in real time, and dynamically adjust power output or switch between grid-connected / off-grid modes;

[0032] S5. Encrypt the runtime data and upload it to the cloud management system, and record local logs.

[0033] The aforementioned control method, in step S3:

[0034] The steps for sequentially closing the photovoltaic array of the control unit include: first closing the photovoltaic arrays of unit four and unit five, and then closing the photovoltaic arrays of unit two and unit three;

[0035] The steps for sequentially deploying the photovoltaic array of the control unit include: first deploying the photovoltaic array of unit two and unit three, and then deploying the photovoltaic array of unit four and unit five.

[0036] The aforementioned control method also includes the step of: when environmental conditions improve, the automatic control unit re-deploys the photovoltaic array and resumes grid-connected power generation.

[0037] The aforementioned control method also includes a withdrawal step: after the task is completed, the cable is disconnected, a hydraulic reset is performed, and the equipment is loaded and transported to a new site by container truck.

[0038] Compared with the prior art, the present invention has at least the following beneficial effects:

[0039] (1) This invention has extremely high flexibility and rapid deployment capability. The platform adopts a standard container carrier, eliminating the need for complex land leveling, foundation pouring and other civil engineering projects, truly realizing "power generation upon landing", shortening the power station construction cycle from several months to several hours; after the task is completed, the entire platform can be folded up and loaded, and quickly transferred to a new site by standard transportation tools, greatly improving the utilization rate of equipment and return on investment, perfectly adapting to temporary, phased or mobile power demand.

[0040] (2) This invention significantly improves land resource conservation and space utilization efficiency. Through the three-dimensional folding and unfolding design of "upward and sideways", the single box platform occupies a very small ground footprint while realizing photovoltaic deployment far exceeding its projected area, which greatly improves the utilization efficiency of fragmented land resources such as idle urban land, port docks, and industrial park scraps. It is particularly suitable for areas with scarce land resources, high land prices, or complex terrain, providing a feasible technical path for deploying clean energy in these areas.

[0041] (3) The present invention has excellent environmental adaptability and operational reliability. By integrating sensors such as wind speed and irradiance and intelligent control algorithms, the platform can automatically and quickly retract the photovoltaic array to a safe state before the arrival of severe weather (such as typhoons, sandstorms, and blizzards), effectively avoiding damage such as component microcracks and bracket deformation that are prone to occur in traditional fixed photovoltaic systems under such conditions, and greatly reducing maintenance costs and risks. The wire rope cable closed-loop servo system can adjust the angle of the photovoltaic panel in real time according to the position of the sun, achieving an effect similar to "chasing the sun". Compared with fixed installation, it can significantly increase the photovoltaic power generation per unit area.

[0042] (4) This invention can realize “unmanned” and “reduced manpower” operation and maintenance, and has functions such as one-click start and stop, automatic retraction and extension, fault diagnosis, and data remote transmission. It greatly reduces the need for on-site manual inspection and operation, and reduces the manpower cost of long-term operation and maintenance. It is especially suitable for remote, dangerous or hard-to-reach scenarios. Moreover, based on the cloud platform EMS microservice architecture, it can perform big data analysis and AI prediction, realize the optimized scheduling of energy and predictive maintenance of equipment, discover potential faults in advance, avoid unplanned downtime, and further improve the economic efficiency of the entire life cycle. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0044] Figure 2 This is a top view of the unfolded structure of the present invention;

[0045] Figure 3 Top view of the prefabricated container cabin of the present invention;

[0046] Figure 4 Front view of the prefabricated container cabin of the present invention;

[0047] Figure 5 Right view of the exterior of the prefabricated container cabin of the present invention;

[0048] Figure 6 Top view of the internal structure of the prefabricated container compartment of the present invention;

[0049] Figure 7 Top view of the internal structure of the prefabricated container compartment of the present invention;

[0050] Figure 8 Right view of the internal structure of the prefabricated container cabin of the present invention;

[0051] Figure 9 Top view of the energy storage battery pack installation of the present invention ( Figure 1 (Cross-section view at point A in the middle);

[0052] Figure 10 Front view of the energy storage battery pack of the present invention;

[0053] Figure 11 Right view of the energy storage battery pack installation according to the present invention;

[0054] Figure 12 The control flowchart of this invention.

[0055] Attached reference numerals: 1-Prefabricated container, 2-Energy storage battery pack, 3-Unit 1 photovoltaic array, 4-Unit 2 photovoltaic array, 5-Unit 3 photovoltaic array, 6-Unit 4 photovoltaic array, 7-Unit 5 photovoltaic array.

[0056] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0057] Embodiment 1 of the present invention: A containerized photovoltaic-storage power generation platform, comprising:

[0058] The platform uses a standard prefabricated container 1 as its basic load-bearing and protective structure. The interior of the prefabricated container 1 adopts a three-compartment thermal management layout, which is divided into an equipment compartment, a battery compartment, and an inverter compartment from left to right or according to space optimization. The battery compartment houses the energy storage battery pack 2 and its supporting liquid cooling temperature control system in the center. The equipment compartment houses the core electrical equipment such as the energy management system (EMS) and PLC controller. The inverter compartment mainly houses the inverter, grid connection switch, transformer, etc.

[0059] The core innovation of the platform lies in its modular, retractable five-unit photovoltaic array, including Unit 1 (PV array 3), Unit 2 (PV array 4), Unit 3 (PV array 5), Unit 4 (PV array 6), and Unit 5 (PV array 7), wherein:

[0060] Unit 1 Photovoltaic Array 3: This is a fixed photovoltaic array installed on the top of the prefabricated container 1. Multiple first photovoltaic panels are rigidly installed on the pre-set purlins on the top of the prefabricated container 1 through brackets and fasteners to form a fixed power generation surface. Its tilt angle can be set according to the typical geographical location during installation.

[0061] Unit 2 Photovoltaic Array 4 and Unit 3 Photovoltaic Array 5: These two units have a completely symmetrical structure and are double-fold photovoltaic arrays symmetrically arranged on both sides of the prefabricated container 1. They can be unfolded and their angle adjusted to the sides of the prefabricated container 1. The double-fold photovoltaic array includes multiple second photovoltaic panels. Each unit consists of eight second photovoltaic panels connected in series through a three-level hinge structure to form a foldable panel group. The root of the foldable panel group is hinged to the upper part of the side wall of the prefabricated container 1 through a truss-like purlin-type main support arm made of cold-formed thin-walled steel. A steel wire rope is connected between the outermost side of the foldable panel group and the container body. The rope is wound and unwound by a hoisting mechanism driven by a servo motor.

[0062] Collapsed state: The main support arm rotates inward, so that the entire panel assembly is pressed against the side wall of the box. At the same time, the panel assembly itself is folded through the hinge, so that the eight photovoltaic panels face each other in pairs, and finally the back of the photovoltaic panels face outward, thus being effectively protected.

[0063] Deployed state: The main support arm rotates outward to push out the panel assembly. Then, by tightening and loosening the steel wire rope, the angle between the entire panel assembly and the horizontal plane is adjusted to achieve the optimal lighting angle.

[0064] The photovoltaic arrays 6 and 7 of Unit 4 and Unit 5 are vertically extending foldable photovoltaic arrays installed inside the prefabricated container cabin 1. They can slide out of the container cabin 1 and unfold to both sides. These two units are also completely symmetrical from left to right. The vertically extending foldable photovoltaic array includes foldable photovoltaic panels and steel structure panels. The core of each unit is a steel structure panel. A sliding rail mechanism is set at the bottom of the prefabricated container cabin 1. The steel structure panel is connected to the internal frame of the prefabricated container cabin 1 through a set of heavy-duty sliding rail mechanism. On both sides of the steel structure panel, a set of foldable photovoltaic panel groups similar to those of Unit 2 / 3 is installed to allow the foldable photovoltaic panels to unfold.

[0065] Collapsed state: The steel structure panels are completely retracted into the box, with their outer surface flush with the box wall.

[0066] Unfolded state: First, the sliding rail mechanism moves to push the steel structure panel out of the box as a whole. Then, the foldable photovoltaic panels installed on both sides unfold outward through their respective hinges and support arms to achieve secondary expansion, which greatly increases the effective power generation area.

[0067] An energy management system is used to automatically control the deployment, retraction, and power scheduling of photovoltaic arrays based on environmental data.

[0068] A thermal management system includes multiple independent air ducts, each of which is connected to the equipment compartment, battery compartment, and inverter compartment. Each independent air duct is equipped with louvers and an explosion-proof fan.

[0069] The energy management system includes a PLC controller and monitoring sensors, including temperature and humidity sensors, smoke sensors, and servo motors and hydraulic cylinders that drive the movement of various mechanisms. The monitoring sensors are used to monitor irradiance, wind speed, temperature, and battery SOC in real time. The PLC controller receives and monitors the information from the sensors and can automatically execute the expansion or contraction of the unit photovoltaic array.

[0070] A control method for a containerized photovoltaic-storage power generation platform includes the following steps:

[0071] S1. The system powers on and performs an initialization self-test;

[0072] S2. Read environmental sensor data, including irradiance, wind speed, temperature and battery state of charge (SOC);

[0073] S3. Determine the current conditions based on the environmental sensor data:

[0074] If the wind load exceeds the first preset threshold, the wind protection mode is activated, and the photovoltaic array of the control unit is sequentially retracted.

[0075] If the light intensity is lower than the second preset threshold, the night mode is activated, and the photovoltaic array of the control unit is closed in sequence.

[0076] If environmental conditions are normal, the control unit will deploy the photovoltaic array in sequence and adjust the angle of the corresponding photovoltaic panels by means of steel wire ropes, while performing maximum power point tracking (MPPT) to optimize power generation.

[0077] The steps for the control unit to sequentially retract the photovoltaic array include:

[0078] First, gather together photovoltaic array 6 of unit four and photovoltaic array 7 of unit five, then gather together photovoltaic array 4 of unit two and photovoltaic array 5 of unit three;

[0079] The steps for sequentially deploying the photovoltaic array of the control unit include: first deploying photovoltaic array 4 (unit 2) and photovoltaic array 5 (unit 3), then deploying photovoltaic array 6 (unit 4) and photovoltaic array 7 (unit 5).

[0080] S4. Monitor operating status and load demand in real time, and dynamically adjust power output or switch between grid-connected / off-grid modes;

[0081] S5. Encrypt the runtime data and upload it to the cloud management system, and record local logs.

[0082] S6. When environmental conditions improve, the photovoltaic array of the automatic control unit is re-deployed and grid-connected power generation is restored.

[0083] S7. Withdrawal Procedure: After the mission is completed, disconnect the cable, perform a hydraulic reset, and load the container truck for transport to a new site.

[0084] Specifically, the steps of this control method are as follows:

[0085] Transportation and initial setup: The platform is transported to the target site (such as a port, mining area or emergency disaster area) by container truck; on-site personnel unload the platform and place it stably, and connect the external power grid cable (if grid connection is required) and grounding wire.

[0086] System startup and self-test:

[0087] When the platform is powered on, EMS 3 and PLC controller begin initialization. The system performs a self-test on the SOC of energy storage battery pack 2, the communication status of each sensor and actuator (motor, slide rail). If the self-test fails, an error is reported and maintenance is requested; if the self-test passes, the process proceeds to the next step.

[0088] Environmental perception and intelligent decision-making:

[0089] The PLC controller continuously reads data from irradiance, wind speed, temperature sensors, and battery SOC.

[0090] Conditional judgment and execution:

[0091] Wind protection mode: If the wind speed sensor detects that the wind load exceeds the preset specification value (such as the corresponding level 10 wind), the PLC controller immediately starts the wind protection program. In order to prevent structural damage, the system issues the retraction command in the order of "unit four / five → unit two / three" to drive the servo motor and slide rail mechanism to safely retract the photovoltaic array.

[0092] Night / Dark Mode: If the light intensity is lower than the start-up threshold, the system enters night mode, retracts all photovoltaic arrays, and only maintains basic monitoring and energy storage system standby.

[0093] Normal power generation mode: If environmental conditions are normal, the PLC 4 issues an unfolding command. The unfolding sequence is: unfold unit two / three first, then unfold unit four / five. After unfolding, the system uses the MPPT (Maximum Power Point Tracking) algorithm, combined with real-time irradiance data, to calculate the optimal tilt angle, and dynamically adjusts the photovoltaic panel angle by controlling the servo mechanism of the steel wire rope cable 1 to maximize power generation efficiency.

[0094] Operational optimization and energy scheduling:

[0095] During power generation, EMS 3 dynamically manages energy flow based on real-time load forecasts, grid electricity prices, or dispatch instructions; power regulation can be achieved by limiting the power output of inverter 5 or prioritizing the charging of batteries with excess power.

[0096] In off-grid mode, the system can switch to V / f (voltage / frequency) control mode to provide stable voltage and frequency support for the microgrid, and has millisecond-level black start capability.

[0097] Data communication and maintenance:

[0098] All operational data (status, power generation, alarms) are preprocessed at the edge by PLC 4 and edge EMS container.

[0099] The processed data is encrypted over TLS using the MQTT protocol and uploaded to the cloud via an HTTPS connection (see the cloud-based EMS microservice architecture diagram).

[0100] The cloud-based platform features a RESTful API gateway, a time-series database, and an AI prediction model, supporting virtual power plant scheduling and remote operation and maintenance, enabling "one-click deployment and takeoff" and global energy optimization.

[0101] Platform withdrawal and transfer:

[0102] When the task is completed or needs to be transferred, EMS 3 controls all units to be sequentially gathered together.

[0103] Workers disconnected the external cable and, if necessary, performed resetting operations such as hydraulic outriggers.

[0104] Finally, the entire platform is loaded and transported to a new work site by container truck, enabling truly flexible deployment and recycling.

[0105] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0106] The working principle of one embodiment of the present invention:

[0107] The principle of form transformation from transportation to power generation (mechanical structure principle) is the foundation for the platform to realize its functions, and its core is the coordinated deployment mechanism of the five-unit photovoltaic array:

[0108] Transportation status (fully collapsed): The platform utilizes the standard dimensions of a shipping container to compactly store all moving parts;

[0109] Units two and three fold like two doors and fit snugly against the sides of the box; Units four and five retract completely into the box.

[0110] In this state, the platform is no different from a regular container and can be flexibly deployed at low cost and high efficiency through standard land and sea transportation.

[0111] Power generation status (fully deployed): Maximizes the exposed power generation area through orderly deployment actions;

[0112] First-level unfolding: Units two and three unfold outwards from both sides of the box like wings.

[0113] Secondary expansion: Units four and five are pushed out of the box as a whole via sliding rails, and then their own photovoltaic panels expand to both sides, achieving a "doubling" effect on the power generation area.

[0114] Angle adjustment: After unfolding, the angles of units two, three, four, and five are finely adjusted through a steel wire rope cable system (acting as adjustable web members) to form a stable "truss-like" structure, which receives sunlight at the optimal tilt angle and maximizes the power generation efficiency per unit area.

[0115] The innovative principle behind this step is to break down the fixed power station into movable modules and, through ingenious hinge, sliding rail and cable mechanisms, achieve photovoltaic deployment far exceeding the surface area of ​​the container within the limited space of the container.

[0116] The intelligent control principle is the core of the platform's intelligence and reliability. It is jointly implemented by the energy management system (EMS) and the sensor network to form a closed-loop control.

[0117] Input: The system collects environmental data (irradiance, wind speed, temperature) and its own status data (battery SOC, grid status) in real time through sensors distributed throughout the platform. Decision-making: The PLC controller, acting as the "brain" of edge computing, makes rapid, local decisions based on preset logic. Normal mode: Based on irradiance, the optimal tilt angle adjustment is calculated and executed using the MPPT algorithm. Risk avoidance mode: When the wind speed sensor detects excessive wind load, or the light sensor detects extremely dark environments, the PLC immediately triggers a protection program, automatically retracting the array in the order of "first unit four / five, then unit two / three" to prevent structural damage. Energy dispatch mode: The EMS, acting as the "brain," intelligently decides whether to generate power at full capacity, limit power, prioritize energy storage, or perform grid-connected / off-grid switching based on load demand, battery power, and grid commands.

[0118] Execution: Decision commands are converted into electrical signals, which drive servo motors to raise and lower wire ropes, and drive hydraulic or electric push rods to control slide rails and hinge mechanisms, thereby precisely controlling the platform's "every move".

[0119] The innovative principle behind this step lies in the deep integration of mechanical structures with the Internet of Things and edge computing technologies, transforming the platform from a "dumb" device into an intelligent agent capable of sensing the environment, making autonomous decisions, and proactively avoiding risks.

[0120] The energy management principle of photovoltaic power generation is the essential function of the platform as a "power station," realizing the integration of energy generation, storage, and dispatch.

[0121] Solar energy → Electrical energy: Each photovoltaic unit converts solar energy into direct current.

[0122] Power processing and storage: DC power is converted into stable AC power by an inverter. On the one hand, it can be directly supplied to the load or connected to the grid. On the other hand, it can charge the built-in energy storage battery pack 2 to store the energy.

[0123] Intelligent scheduling and output:

[0124] Grid-connected mode: Like a miniature power plant, it delivers green electricity to the grid.

[0125] Off-grid mode: The platform becomes an independent microgrid power source. Its V / f control function can establish and maintain the voltage and frequency of the grid, achieving "black start" and quickly supplying power to critical facilities in areas without electricity or after grid failure.

[0126] Dynamic optimization: EMS uses cloud-based big data and AI predictions to perform global optimization of power generation, energy storage, and power consumption to maximize economic benefits.

Claims

1. A containerized photovoltaic-storage power generation platform, characterized in that, include: The container prefabricated container (1) is equipped with an energy storage battery pack (2) and an energy management system; the unit photovoltaic array includes a unit photovoltaic array (3), a unit photovoltaic array (4), a unit photovoltaic array (5), a unit photovoltaic array (6) and a unit photovoltaic array (7); The photovoltaic array (3) of Unit 1 is a fixed photovoltaic array installed on the top of the prefabricated container (1); The photovoltaic array of Unit 2 (4) and the photovoltaic array of Unit 3 (5) are double-folded photovoltaic arrays symmetrically arranged on both sides of the prefabricated container (1), which can be unfolded and angled to both sides of the prefabricated container (1); The four-unit photovoltaic array (6) and the five-unit photovoltaic array (7) are vertically extended folding photovoltaic arrays installed in the inner cavity of the prefabricated container (1), which can slide out of the container body (1) and unfold to both sides. An energy management system is used to automatically control the deployment, retraction, and power scheduling of photovoltaic arrays based on environmental data.

2. The containerized photovoltaic-storage power generation platform as described in claim 1, characterized in that, It also includes a thermal management system, which includes multiple independent air ducts. The prefabricated container compartment (1) is divided into an equipment compartment, a battery compartment, and an inverter compartment. Each independent air duct is connected to the equipment compartment, the battery compartment, and the inverter compartment respectively. Each independent air duct is equipped with louvers and explosion-proof fans. The four-unit photovoltaic array (6) and the five-unit photovoltaic array (7) are located in the equipment compartment. The energy storage battery pack (2) is located in the battery compartment. An inverter is located in the inverter compartment.

3. The containerized photovoltaic-storage power generation platform as described in claim 1, characterized in that, The fixed photovoltaic array includes multiple first photovoltaic panels, which are directly fixed to the top surface of the prefabricated container cabin (1) by fasteners.

4. The containerized photovoltaic-storage power generation platform as described in claim 1, characterized in that, The double-fold photovoltaic array includes multiple second photovoltaic panels, which are interconnected by a three-level hinge to form a foldable panel group. The foldable panel group is fitted to both sides of the prefabricated container cabin (1). A winch is installed on the top of the prefabricated container cabin (1), and a steel wire rope is wound and connected to the winch. The other end of the steel wire rope is connected to the outer end of the foldable panel group.

5. The containerized photovoltaic-storage power generation platform as described in claim 1, characterized in that, The vertically extended foldable photovoltaic array includes a foldable photovoltaic panel and a steel structure plate. The foldable photovoltaic panel is installed on both sides of the steel structure plate. A sliding rail mechanism is provided at the bottom of the inner cavity of the prefabricated container (1). The steel structure plate is slidably installed in the inner cavity of the prefabricated container (1) through the sliding rail mechanism. The steel structure plate can be pushed out as a whole along the prefabricated container (1) through the sliding rail mechanism, so that the foldable photovoltaic panel can be unfolded.

6. The containerized photovoltaic-storage power generation platform as described in claim 1, characterized in that, The energy management system includes a PLC controller and monitoring sensors. The monitoring sensors are used to monitor irradiance, wind speed, temperature and battery SOC in real time. The PLC controller receives and monitors the information from the sensors and can automatically execute the expansion or contraction of the unit photovoltaic array.

7. A control method for a containerized photovoltaic-storage power generation platform as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. The system powers on and performs an initialization self-test; S(2) Read environmental sensor data, including irradiance, wind speed, temperature and battery state of charge (SOC); S3. Determine the current conditions based on the environmental sensor data: If the wind load exceeds the first preset threshold, the wind protection mode is activated, and the photovoltaic array of the control unit is sequentially retracted. If the light intensity is lower than the second preset threshold, the night mode is activated, and the photovoltaic array of the control unit is closed in sequence. If environmental conditions are normal, the control unit will deploy the photovoltaic array in sequence and adjust the angle of the corresponding photovoltaic panels by means of steel wire ropes, while performing maximum power point tracking (MPPT) to optimize power generation. S4. Monitor operating status and load demand in real time, and dynamically adjust power output or switch between grid-connected and off-grid modes; S5. Encrypt the runtime data and upload it to the cloud management system, and record local logs.

8. The control method as described in claim 1, characterized in that, In step S3: The steps for sequentially closing the photovoltaic array of the control unit include: first closing the photovoltaic array of unit four (6) and the photovoltaic array of unit five (7), and then closing the photovoltaic array of unit two (4) and the photovoltaic array of unit three (5); The steps for sequentially deploying the photovoltaic array of the control unit include: first deploying the photovoltaic array of unit two (4) and the photovoltaic array of unit three (5), and then deploying the photovoltaic array of unit four (6) and the photovoltaic array of unit five (7).

9. The control method as described in claim 1, characterized in that, It also includes the following steps: when environmental conditions improve, the automatic control unit re-deploys the photovoltaic array and resumes grid-connected power generation.

10. The control method as described in claim 1, characterized in that, It also includes a withdrawal step: after the mission is completed, the cable is disconnected, a hydraulic reset is performed, and the equipment is loaded and transported to a new site by container truck.

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