A wind-solar-wave cooperative dispatching power generation device and method

Abstract

The present application relates to offshore device technical field, especially to a kind of wind light wave collaborative scheduling power generation device and method, its method includes through sensor module real-time collection environmental data to judge current sea state grade, intelligent scheduling module intelligent switching or collaborative photovoltaic power generation module, wind power generation module and wave energy power generation module work, and solar energy, wind energy and wave energy generated are stored to energy storage module;When the real-time monitoring sea state data reaches preset extreme sea state condition, control float and sink module starts protection mode, closes photovoltaic power generation module and wind power generation module, adjusts shell to sink to safe depth, simultaneously switches to wave energy power generation module and carries out separate power generation work;When the real-time monitoring environmental data meets the threshold condition of removing extreme sea state, float and sink module removes protection mode, adjusts shell to float to sea level, and intelligent scheduling module restores normal scheduling power generation function.The present application can solve the complementary and cooperativity problem of existing power generation method.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of offshore devices, in particular to a wind-wave-solar coordinated dispatch power generation device and method. BACKGROUND

[0002] With the continuous development of the global economy and the growing population, energy demand is showing an unprecedented growth trend. At the same time, the awakening of environmental protection consciousness makes people's demand for clean energy increasingly urgent. In this context, the development and utilization of renewable energy has become the common goal of countries around the world. Wind energy, solar energy and wave energy, as three kinds of renewable energy with great potential, have shown broad application prospects in the energy field due to their large reserves, wide distribution and clean and pollution-free characteristics.

[0003] However, although these renewable energy sources have many advantages, their development and utilization also face many challenges. Single renewable energy power generation method is often strictly limited by natural environmental conditions. For example, although wind power generation is mature and widely used, its power generation efficiency is easily affected by weather factors such as wind speed and wind direction. Similarly, although solar power generation has the characteristics of inexhaustible and inexhaustible, its power generation capacity is severely restricted by weather conditions such as sunshine time, cloud cover and season. Wave power generation, although it has great development potential in areas rich in marine resources, its power generation efficiency and stability are affected by many factors such as marine environment, wave size and water depth.

[0004] These limiting factors not only affect the stability and reliability of single energy power generation system, but also make it difficult for these systems to meet large-scale, continuous and stable energy demand. Therefore, how to overcome these limiting factors and achieve efficient, stable and sustainable use of renewable energy has become an important issue to be solved in the current energy field. SUMMARY

[0005] One purpose of the present application is to provide a wind-wave-solar coordinated dispatch power generation device that combines wind power generation, solar power generation and wave power generation to solve the problem of single power generation device in the prior art.

[0006] Another purpose of the present application is to provide a wind-wave-solar coordinated dispatch power generation method that realizes complementary and optimized scheduling between three kinds of renewable energy through an advanced control module, and solves the problem of complementarity and synergy of the power generation method in the prior art.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] The application discloses a wind, light and wave coordinated dispatching power generation device.

[0009] The sensor module comprises a plurality of sensors for collecting environmental data in real time.

[0010] The inside of the shell is provided with a water storage bin, and the outside of the shell is connected with an anchor chain.

[0011] The photovoltaic power generation module comprises a plurality of solar panels controlled by a control motor in terms of opening and closing state, azimuth angle and elevation angle, and the solar panels are used for photovoltaic power generation to obtain solar energy.

[0012] The wind power generation module comprises a vertical spiral wind turbine which is used for wind power generation to obtain wind energy.

[0013] The wave energy generation module comprises a steel disc and two annular permanent magnets connected through a spring telescopic rod and a central rigid shaft, the relative movement of the steel disc between the two annular permanent magnets is used for floating up and down with the fluctuation of waves, the kinetic energy of waves is converted into mechanical energy, and current is generated through electromagnetic induction principle to obtain wave energy.

[0014] The energy storage module is used for storing the solar energy, wind energy and wave energy.

[0015] The intelligent dispatching module is used for controlling whether the floating and sinking module starts the protection mode according to the real-time monitored environmental data, and switching or coordinating the photovoltaic power generation module, the wind power generation module and the wave energy generation module according to the protection mode of the floating and sinking module.

[0016] Preferably, the sensor module specifically comprises:

[0017] A wave height gauge is used for monitoring wave information including wave height and wave frequency.

[0018] An illumination sensor is used for monitoring the illumination intensity above the sea level.

[0019] A wind speed and direction sensor is used for obtaining wind speed and direction data.

[0020] A meteorological sensor is used for collecting meteorological conditions including air temperature, humidity and precipitation.

[0021] An attitude sensor is used for collecting the inclination angle and depth of the shell.

[0022] A pose sensor is configured to collect the range of motion amplitude, yaw angle and elevation angle of the shell at the diving position;

[0023] An acceleration sensor is configured to measure the acceleration change of the shell to obtain the vertical displacement;

[0024] A depth sensor is configured to monitor the depth of the shell in real time.

[0025] A wind, light and wave coordinated scheduling power generation method applied to the wind, light and wave coordinated scheduling power generation device as described above, comprising the following steps:

[0026] Step A, collecting environmental data in real time through the sensor module;

[0027] Step B, judging the current sea state level according to the real-time collected environmental data, the intelligent scheduling module intelligently switches or cooperates the photovoltaic power generation module, the wind power generation module and the wave power generation module to work, and stores the generated solar energy, wind energy and wave energy to the energy storage module;

[0028] Step C, when the real-time monitored sea state data reaches the preset extreme sea state condition, the intelligent scheduling module controls the floating and sinking module to start the protection mode, closes the photovoltaic power generation module and the wind power generation module, adjusts the shell to sink to a safe depth, and at the same time switches to the wave power generation module to work alone;

[0029] Step D, in the process of gradually removing the extreme sea state, the sensor module continuously monitors the environmental data, and when the real-time monitored environmental data meets the threshold condition for removing the extreme sea state, the floating and sinking module removes the protection mode, adjusts the shell to float to the sea level, and the intelligent scheduling module restores the normal scheduling power generation function.

[0030] Preferably, in step B, the current sea state level is judged according to the real-time collected environmental data, and the intelligent scheduling module intelligently switches or cooperates the photovoltaic power generation module, the wind power generation module and the wave power generation module to work, as shown in the following table:

[0031]

[0032]

[0033] Among them, the wave height is monitored by a wave height meter; the wind speed is monitored by a wind speed and direction sensor; and the light intensity is monitored by a light sensor.

[0034] Preferably, in step B, the working process of the photovoltaic power generation module specifically comprises the following steps:

[0035] Step B1: Real-time acquisition of light intensity data by the light sensor, comparison with the set threshold, and adjustment of the opening and closing state of the multiple solar panels by controlling the motor according to the comparison result;

[0036] When the light intensity reaches the set threshold, the motor drives the solar panel to open for photovoltaic power generation;

[0037] When the light intensity does not reach the set threshold, the motor drives the solar panel to close to protect the solar panel;

[0038] Step B2: During the opening of the solar panel, the light sensor continuously monitors the surrounding light intensity, and calculates the optimal azimuth and elevation angle of the solar panel using the solar position algorithm:

[0039] θ = arcs i n(s i n(6) . s i n(cp) + cos(6) . cos(cp) . cos(H))

[0040]

[0041] where θ represents the elevation angle of the sun, i.e. the angle between the sun and the horizon; A represents the azimuth angle of the sun, i.e. the angle of the sun relative to the north direction; φ is the latitude of the observation point; δ is the solar declination; H is the hour angle, representing the angle difference between the current time and the solar noon time;

[0042] Step B3: According to the optimal azimuth and elevation angle, the motor drives the horizontal and vertical axes of the solar panel to adjust the azimuth and elevation angle of the solar panel to align with the incident direction of sunlight, and the generated power of the solar panel is transmitted to the energy storage module;

[0043] where the power generation of the solar panel is calculated by radiation:

[0044] P (t) ＝ AWG (t)

[0045]

[0046] where P(t) represents the instantaneous power generation, with the unit of W; η represents the comprehensive efficiency of the solar panel, including the panel conversion efficiency, inverter efficiency, temperature influence and dust factor comprehensive efficiency, with the value range of 0.15-0.22; a represents the area of the solar panel, with the unit of m 2; G(t) represents solar irradiance, unit: W / m 2 ; E represents the continuous power generation.

[0047] When the solar irradiance G(t) is relatively stable in a certain period of time T, it is approximately constant G avg :

[0048] E=A·η·G avg ·T.

[0049] Preferably, in step B, the working process of the wind power generation module specifically includes the following steps:

[0050] Step B4: The blades of the vertical spiral wind turbine rotate following the wind, and the blades are connected to the rotor of the vertical spiral wind turbine through the main shaft, driving the rotor to rotate and generating mechanical energy at the same time, which is converted into electrical energy and transmitted to the energy storage module;

[0051] Wherein, the power generation of the wind power generation module is calculated as follows:

[0052] P(t)=0.5·ρ·A·v(t) 3 ·C p ·η

[0053] In a period of time, the power generation E is expressed as:

[0054]

[0055] When the wind speed v(t) remains constant v avg , it can be simplified as:

[0056] E=0.5·ρ·A·v avg 3 ·C p ·η·T

[0057] Wherein, P(t) represents the instantaneous power generation, unit: W; ρ represents the air density, unit: kg / m 3 ; A represents the blade swept area, unit: m 2 ; A=H·D, wherein H represents the height of the fan, and D represents the diameter of the fan; v(t) represents the instantaneous wind speed, unit: m / s; C p represents the power coefficient of wind energy conversion into mechanical energy, with a value range of 0.3-0.4; η represents the comprehensive efficiency of the wind power generation system, including the efficiency of the generator and the transmission efficiency, with a value range of 0.8-0.9.

[0058] Preferably, in step B, the working process of the wave energy generation module specifically includes the following steps:

[0059] Step B5: under the continuous action of the wave, the steel disc drives the center rigid shaft and the coil at both ends to move up and down, the coil cuts the magnetic induction lines under the action of the magnetic field change of the two annular permanent magnets and induces current, and the power generation of the wave energy power generation module obtained is transmitted to the energy storage module;

[0060] The power generation of the wave energy power generation module is calculated as follows:

[0061] The wave motion is defined as a simple harmonic motion, the relative velocity v(t) changes with time, the wave height H s and the wave frequency period T, the relative velocity of the simple harmonic motion is:

[0062] v(t) = A·ω·cos(ωt)

[0063] Wherein, represents the wave amplitude, with the unit of m; represents the angular frequency, with the unit of rad / s; T represents the wave period, with the unit of s; H s represents the wave height, with the unit of m;

[0064] The average velocity is calculated by the maximum value of the wave motion:

[0065]

[0066] According to Faraday's law of electromagnetic induction, the instantaneous value of induced electromotive force is:

[0067]

[0068] The total electromotive force of the coil is:

[0069]

[0070] The instantaneous power is:

[0071]

[0072] Since the instantaneous power changes with time, the average value P avg needs to be calculated:

[0073]

[0074] P avg = N·B·L·v avg ·I

[0075] Substituting v avg , finally:

[0076]

[0077] Wherein, B represents the magnetic induction intensity, unit is T; N represents the number of turns of coil; L represents the effective length of coil, unit is m; I represents the current, unit is A.

[0078] Preferably, in step C, the intelligent scheduling module controls the float-and-sink module to start the protection mode, and adjusts the shell to sink to a safe depth, specifically comprising the following steps:

[0079] Step C1: Real-time monitoring of the depth of the shell by the depth sensor;

[0080] Step C2: The intelligent scheduling module automatically adjusts the water volume V of the water storage bin according to the depth data water , so that the buoyancy of the shell balances with the gravity, and the safe depth is maintained;

[0081] Wherein, the buoyancy of the shell is controlled by the buoyancy formula:

[0082] F b = ρ sea · V water · g

[0083] Wherein, F b represents the buoyancy; ρ sea represents the seawater density; V water represents the water volume of the water in the water storage bin; g represents the acceleration of gravity;

[0084] The depth of the shell is adjusted by the gravity formula:

[0085] T hinge = F b · d

[0086] F b = F g + T hinge

[0087] ρ sea · V water · g = m device · g

[0088]

[0089] Wherein, T hinge represents the tension of the hinge, and d represents the lever arm between the center of buoyancy and the hinge point; F g represents the gravity of the shell.

[0090] Preferably, in S4, the threshold conditions for relieving extreme sea conditions include a swing amplitude threshold <0.5m, a swing time threshold >18s, and a swing frequency threshold less than 0.15HZ.

[0091] One of the above technical solutions has the following beneficial effects:

[0092] 1. Intelligent scheduling, efficient use of energy: Through real-time collection of environmental data and intelligent scheduling strategy, the working state of each power generation module can be intelligently switched or coordinated according to different sea conditions, realizing the maximum utilization of energy.

[0093] 2. Safety protection, improve device life: In extreme sea conditions, by starting the protection mode and adjusting the depth of the shell, the power generation device can be effectively protected from damage and the service life of the device can be extended.

[0094] 3. High degree of automation, reduce operation and maintenance cost: The whole scheduling power generation process is highly automated, reducing manual intervention and operation and maintenance cost, improving the economy and sustainability of the system.

[0095] 4. Strong environmental adaptability, wide application range: It is suitable for various marine environmental conditions and can flexibly adjust the working state according to the actual situation, with strong environmental adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0096] Figure 1 is a structural schematic diagram of a wind-light-wave coordinated scheduling power generation device of the present application;

[0097] Figure 2 is a flowchart of a wind-light-wave coordinated scheduling power generation method of the present application;

[0098] In the drawings: shell 1, sensor module 2, floating and sinking module 3, photovoltaic power generation module 4, wind power generation module 5, wave power generation module 6, intelligent scheduling module 7. DETAILED DESCRIPTION

[0099] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0100] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0101] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an ordered ranking of the indicated technical features. Thus, features defined with "first", "second" or "third" can explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified and limited, the term "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0102] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0103] As shown in Figure 1 A wind, light and wave coordinated dispatch power generation device, comprising a shell 1 and a sensor module 2, a floating and sinking module 3, a photovoltaic power generation module 4, a wind power generation module 5, a wave power generation module 6 and an intelligent dispatch module 7 installed in the shell 1.

[0104] The sensor module 2 comprises a plurality of sensors for real-time collection of environmental data.

[0105] The inside of the shell 1 is provided with a water storage bin, and the outside of the shell 1 is connected with an anchor chain. The floating and sinking module 3 is used to automatically fill or drain the water storage bin according to the opening and closing state of the protection mode, and adjust the tension of the anchor chain, so as to adjust the floating and sinking state of the shell 1.

[0106] The photovoltaic power generation module 4 comprises a plurality of solar panels controlled by a control motor to control the opening and closing state, azimuth angle and elevation angle of the plurality of solar panels, which are used for photovoltaic power generation to obtain solar energy.

[0107] The wind power generation module 5 comprises a vertical spiral wind turbine, which is used for wind power generation to obtain wind energy.

[0108] The wave power generation module 6 comprises a steel disc and two annular permanent magnets connected by a spring telescopic rod and a central rigid shaft. The relative movement of the steel disc between the two annular permanent magnets is used to float up and down with the fluctuation of the waves, convert the kinetic energy of the waves into mechanical energy, and generate electric current through electromagnetic induction principle to obtain wave energy.

[0109] The energy storage module 8 is used to store the solar energy, wind energy and wave energy.

[0110] The intelligent scheduling module 7 is used to control whether the floating and sinking module 3 starts the protection mode according to the real-time monitored environmental data, and to switch or cooperate the work of the photovoltaic power generation module 4, the wind power generation module 5 and the wave power generation module 6 according to the protection mode of the floating and sinking module 3.

[0111] The core of the wind, light and wave cooperative scheduling power generation device is to realize the maximum utilization of environmental resources by integrating multiple renewable energy power generation modules and an intelligent scheduling module 7. The device first collects environmental data in real time through a sensor module 2, including wind speed, wind direction, solar radiation intensity, wave height, wave period and other key information. These data are transmitted to the intelligent scheduling module 7 for subsequent analysis and decision-making.

[0112] Inside the shell 1, a water storage bin is provided, and an anchor chain is connected outside. The floating and sinking module 3 controls the floating and sinking state of the shell 1 by automatically filling or draining water into the water storage bin and adjusting the tension of the anchor chain according to the instructions of the intelligent scheduling module 7. This function is particularly important in extreme weather conditions, which can protect the device from natural forces such as wind and waves.

[0113] The photovoltaic power generation module 4 uses multiple solar panels for photovoltaic power generation. These solar panels are controlled by a control motor to control their opening and closing state, azimuth angle and elevation angle to ensure that they receive solar radiation at the best angle, thereby improving power generation efficiency.

[0114] The wind power generation module 5 uses a vertical spiral wind turbine, which is designed to effectively generate power at lower wind speeds. This generator generates electricity by rotating and converts wind energy into electrical energy.

[0115] The wave power generation module 6 uses the relative motion of a steel disc between two annular permanent magnets to capture the kinetic energy of waves. As the waves rise and fall, the steel disc floats up and down, transmitting energy through a spring expansion rod and a central rigid shaft. In this process, the steel disc cuts the magnetic induction lines to generate an electric current, thereby converting wave energy into electrical energy.

[0116] The energy storage module 8 is responsible for storing the electrical energy generated by the photovoltaic power generation module 4, the wind power generation module 5 and the wave power generation module 6. When the grid demand or energy storage reaches a set threshold, the intelligent scheduling module 7 will automatically switch or cooperate the work state of each power generation module according to the real-time monitored environmental data and energy storage state, to realize the maximum utilization of energy and stable operation of the system.

[0117] Therefore, the beneficial effects of the device of the present application include:

[0118] 1. Efficient use of renewable energy: By integrating multiple renewable energy power generation modules, wind energy, solar energy and wave energy can be fully utilized to maximize energy utilization.

[0119] 2. Improve system stability: The intelligent scheduling module 7 automatically adjusts the working state of each power generation module according to the real-time monitoring of environmental data, effectively responds to energy fluctuations and changes in power grid demand, and improves the stability and reliability of the system.

[0120] 3. Enhance environmental adaptability: The design of the floating and sinking module 3 enables the device to automatically adjust the floating and sinking state according to environmental conditions, protecting the device from extreme weather conditions and enhancing the environmental adaptability of the system.

[0121] 4. Reduce the cost of electricity: By optimizing energy allocation and scheduling strategies, the device can reduce the cost of electricity and improve economic efficiency.

[0122] Further explanation, the sensor module 2 specifically includes:

[0123] Wave height gauge for monitoring wave information including wave height, wave frequency;

[0124] Light sensor for monitoring light intensity above sea level;

[0125] Wind speed and direction sensor for obtaining wind speed and direction data;

[0126] Weather sensor for collecting weather conditions including temperature, humidity and precipitation;

[0127] Attitude sensor for collecting the inclination angle and depth of the shell 1;

[0128] Pose sensor for collecting the change range of motion amplitude, yaw angle and elevation angle of the shell 1 at the submerged position;

[0129] Acceleration sensor for measuring the acceleration change of the shell 1 to obtain vertical displacement;

[0130] Depth sensor for real-time monitoring of the depth of the shell 1.

[0131] Specifically, the sensor module 2 as the "eyes" of the entire system is responsible for real-time and comprehensive collection of marine environmental data to provide decision-making basis for the intelligent scheduling module 7.

[0132] The sensor module 2 specifically includes:

[0133] Wave height gauge: high-precision sensors are used to monitor the height and frequency of waves, providing key parameters for the wave energy generation module 6, and also helping the intelligent scheduling module 7 to predict and respond to changes in wave energy.

[0134] Light sensor: installed above sea level or on the top of the shell 1, used to monitor light intensity, guide the opening and closing state, azimuth and elevation angle adjustment of the photovoltaic power generation module 4, to maximize the capture efficiency of solar energy.

[0135] Wind speed and direction sensor: through rotary or ultrasonic sensor to obtain wind speed and direction data, to provide real-time wind condition information for wind power generation module 5, and also help intelligent scheduling module 7 to optimize wind energy utilization strategy.

[0136] Weather sensor: comprehensive collection of air temperature, humidity and precipitation, etc. These data not only affect the efficiency of photovoltaic power generation and wind power generation, but also are important basis for intelligent scheduling module 7 to develop protection mode and adjust power generation strategy.

[0137] Attitude sensor: through gyro or accelerometer and other sensors to collect the inclination angle and depth information of shell 1, which helps intelligent scheduling module 7 to monitor the device state and ensure its safe operation in complex marine environment.

[0138] Pose sensor: used to collect the change range of motion amplitude, yaw angle and elevation angle of shell 1 at the diving position, to provide accurate position and attitude information for intelligent scheduling module 7, to optimize power generation efficiency and protect device safety.

[0139] Acceleration sensor: through measuring the acceleration change of shell 1, to indirectly obtain the vertical displacement information, which helps intelligent scheduling module 7 to start protection mode in time under extreme weather conditions, to avoid device damage.

[0140] Depth sensor: real-time monitoring of the depth of shell 1, to ensure the device runs within the set safe depth range, and also can be used to guide the adjustment of floating and sinking module 3, to adapt to different marine environment.

[0141] Intelligent scheduling module 7 according to the data collected by sensor module 2, comprehensive evaluation of the current environmental conditions and energy demand, automatic switching or coordination of photovoltaic power generation module 4, wind power generation module 5 and wave power generation module 6 working state, to realize the maximum utilization of energy and stable operation of the system.

[0142] A wind light wave collaborative scheduling power generation method, applied to the wind light wave collaborative scheduling power generation device as described above, comprising the following steps:

[0143] Step A, real-time collection of environmental data by the sensor module 2;

[0144] Step B: The intelligent scheduling module 7 intelligently switches or cooperates the work of the photovoltaic power generation module 4, the wind power generation module 5 and the wave energy power generation module 6 according to the real-time collected environmental data, and stores the generated solar energy, wind energy and wave energy to the energy storage module 8.

[0145] Step C: When the real-time monitored sea state data reaches the preset extreme sea state condition, the intelligent scheduling module 7 controls the floating and sinking module 3 to start the protection mode, closes the photovoltaic power generation module 4 and the wind power generation module 5, adjusts the shell 1 to sink to a safe depth, and switches to the wave energy power generation module 6 for separate power generation work.

[0146] Step D: In the process of gradually removing the extreme sea state, the environmental data is continuously monitored through the sensor module 2, and when the real-time monitored environmental data meets the threshold condition of removing the extreme sea state, the floating and sinking module 3 removes the protection mode, adjusts the shell 1 to float to the sea level, and the intelligent scheduling module 7 restores the normal scheduling power generation function.

[0147] The wind, light and wave collaborative scheduling power generation method of the application is specially designed for the wind, light and wave collaborative power generation device integrated with multiple renewable energy power generation modules and an intelligent scheduling module 7. The core of the method is to intelligently switch or cooperate the working state of different power generation modules according to the real-time collected marine environmental data, so as to maximize the energy utilization efficiency and ensure the safe operation of the device.

[0148] The specific steps are as follows:

[0149] Step A: The sensor module 2 in the device collects comprehensive environmental data including wave height, wave frequency, light intensity, wind speed, wind direction, air temperature, humidity, precipitation, shell 1 posture, depth and acceleration in real time. These data provide key basis for subsequent intelligent scheduling.

[0150] Step B: The intelligent scheduling module 7 determines the current sea state level according to the real-time collected environmental data. According to the sea state level, the intelligent scheduling module 7 will intelligently switch or cooperate the working state of the photovoltaic power generation module 4, the wind power generation module 5 and the wave energy power generation module 6. For example, in the case of sufficient light and moderate wind speed, the photovoltaic power generation module 4 and the wind power generation module 5 may be preferentially started; and in the sea state with rich wave energy, the wave energy power generation module 6 is increased. The generated solar energy, wind energy and wave energy are stored to the energy storage module 8 for subsequent use.

[0151] Step C: When the real-time monitored sea condition data reaches the preset extreme sea condition condition, such as storm, huge wave, etc., the intelligent scheduling module 7 will immediately control the floating and sinking module 3 to start the protection mode. In this mode, the photovoltaic power generation module 4 and the wind power generation module 5 will be closed to avoid damage caused by extreme weather. At the same time, the floating and sinking module 3 will adjust the shell 1 to sink to a safe depth to reduce the impact of the sea wave on the device. During this period, the wave energy power generation module 6 can be switched to a separate power generation mode to utilize wave energy to supplement the energy storage module 8.

[0152] Step D: As the extreme sea condition gradually subsides, the sensor module 2 will continuously monitor the environmental data. When the real-time monitored environmental data meets the preset threshold condition for removing the extreme sea condition, such as wave height reduction, wind speed weakening, etc., the floating and sinking module 3 will remove the protection mode and adjust the shell 1 to float to the sea level. At this time, the intelligent scheduling module 7 will restore the normal scheduling function of the power generation module and adjust the working state of each power generation module according to the new environmental data.

[0153] In summary, the beneficial effects of the method of the present application include:

[0154] 1. Intelligent scheduling, efficient use of energy: Through real-time collection of environmental data and intelligent scheduling strategy, the working state of each power generation module can be intelligently switched or coordinated according to different sea conditions, realizing the maximum utilization of energy.

[0155] 2. Safety protection, improve device life: In extreme sea conditions, by starting the protection mode and adjusting the depth of the shell, the power generation device can be effectively protected from damage and the service life of the device can be extended.

[0156] 3. High degree of automation, reduce operation and maintenance cost: The entire power generation scheduling process is highly automated, reducing manual intervention and operation and maintenance cost, improving the economy and sustainability of the system.

[0157] 4. Strong environmental adaptability, wide application range: It is suitable for various marine environmental conditions and can flexibly adjust the working state according to the actual situation, with strong environmental adaptability.

[0158] Further explanation, in step B, according to the real-time collected environmental data to judge the current sea condition level, the intelligent scheduling module 7 intelligently switches or coordinates the photovoltaic power generation module 4, wind power generation module 5 and wave energy power generation module 6, as shown in the following table:

[0159]

[0160] Among them, the wave height is monitored by a wave height meter; the wind speed is monitored by a wind speed and direction sensor; the light intensity is monitored by a light sensor.

[0161] According to the real-time monitoring of sea conditions data, the intelligent scheduling module 7 will judge the current sea conditions level and select the appropriate power generation mode to ensure the efficiency of power generation and the safety of the equipment.

[0162] ① Stable sea conditions (sea conditions level 1 and 2, suitable for solar and wind power generation)

[0163] Photovoltaic power generation: When the light intensity reaches the set threshold, the light sensor sends a signal to control the opening of multiple solar panels to capture solar energy.

[0164] Wind power generation: If the wind speed is moderate (within a safe range), the wind speed and direction sensor sends a signal, and the vertical spiral wind turbine starts to generate electricity.

[0165] At this time, photovoltaic power generation and wind power generation can operate simultaneously to increase power output.

[0166] ② Moderate sea conditions (sea conditions level 3, suitable for wind and wave power generation)

[0167] Wind power generation: According to wind speed data, if the wind speed is suitable and stable, start the vertical spiral wind turbine.

[0168] Wave power generation starts: the wave power generation system starts to work according to the height and frequency of the waves. The up and down movement of the waves is converted into electrical energy by the wave power generation module 6, which is suitable for such sea conditions.

[0169] ③ Extreme sea conditions (sea conditions level 4 and 5, suitable for wave power generation and equipment protection)

[0170] Photovoltaic power generation and wind power generation stop: when the sea conditions reach an extreme level (such as strong winds, heavy rain, typhoons, etc.), the solar panels will be automatically retracted, and the vertical spiral wind turbine will stop operating to avoid damage. At this time, the wave power generation module 6 is mainly relied on for power generation.

[0171] In extreme sea conditions, wave power generation becomes the main source of energy. The wind-solar-wave cooperative power generation device will enter a semi-submerged state, and the floating and sinking module 3 will adjust the floating and sinking state of the wind-solar-wave cooperative power generation device to sink to a safe depth, reducing the impact of wind and waves on the wind-solar-wave cooperative power generation device. The wave power generation module 6 floats up and down with the wave through the relative movement of the two annular permanent magnets, converting the kinetic energy of the wave into mechanical energy, and generating an electric current through electromagnetic induction to obtain wave energy.

[0172] Further, in step B, the working process of the photovoltaic power generation module 4 specifically includes the following steps:

[0173] Step B1: Real-time acquisition of light intensity data by the light sensor, comparison with the set threshold, and adjustment of the opening and closing state of the multiple solar panels by controlling the motor according to the comparison result;

[0174] When the light intensity reaches the set threshold, the motor drives the solar panels to open for photovoltaic power generation;

[0175] When the light intensity does not reach the set threshold, the motor drives the solar panels to close to protect the solar panels;

[0176] Step B2: During the opening of the solar panels, the light sensor continuously monitors the surrounding light intensity, and calculates the optimal azimuth and elevation angle of the solar panels using the solar position algorithm:

[0177] θ = arcsin(sin(δ)·sin(φ) + cos(δ)·cos(φ)·cos(H))

[0178]

[0179] Where θ represents the elevation angle of the sun, i.e. the angle between the sun and the horizon; A represents the azimuth angle of the sun, i.e. the angle of the sun relative to the north direction; φ is the latitude of the observation point; δ is the solar declination; H is the hour angle, representing the angular difference between the current time and the solar noon time;

[0180] Step B3: According to the optimal azimuth and elevation angle, the motor drives the horizontal and vertical axes of the solar panels to adjust the azimuth and elevation angle of the solar panels to align with the incident direction of sunlight, and the generated power of the solar panels is transmitted to the energy storage module 8;

[0181] Where the power generation of the solar panels is calculated by radiation:

[0182] P(t) = A·η·G(t)

[0183]

[0184] Where P(t) represents the instantaneous power generation, with units of W; η represents the comprehensive efficiency of the solar panel, including panel conversion efficiency, inverter efficiency, temperature influence and dust factor comprehensive efficiency, with a value range of 0.15-0.22; A represents the area of the solar panel, with units of m 2 ; G(t) represents the solar irradiance, with units of W / m 2 ; E represents the continuous power generation.

[0185] When the solar irradiance G(t) is relatively stable in a certain period of time T, it is approximately constant G avg :

[0186] E = A · η · G avg · T.

[0187] In a case of its photovoltaic power generation, the photovoltaic power generation module (4) adopts three solar panels to form an openable and closable state, the area A of a single solar panel is 2.496 m2, the conversion efficiency η of a single solar panel is 15%, the average solar radiation intensity G of a single solar panel is 600 W / m2, and the reference sea surface usually sunshine time is 8.5 hours, then the offshore daily total capacity of the photovoltaic power generation module (4) is expected to reach 5.75 kWh.

[0188] Further, in step B, the working process of the wind power generation module 5 specifically includes the following steps:

[0189] Step B4: The blades of the vertical spiral wind turbine rotate following the wind, the blades are connected to the rotor of the vertical spiral wind turbine through the main shaft, drive the rotor to rotate and generate mechanical energy at the same time, and convert the mechanical energy into electrical energy and transmit to the energy storage module 8;

[0190] Wherein, the power generation of the wind power generation module 5 is calculated as follows:

[0191] P(t) = 0.5 · ρ · A · v(t) 3 · C p · η

[0192] In a period of time, the power generation E is expressed as:

[0193]

[0194] When the wind speed v(t) remains constant v avg , it can be simplified as:

[0195] E = 0.5 · ρ · A · v avg 3 · C p · η · T

[0196] Wherein, P(t) represents the instantaneous power generation, the unit is W; ρ represents the air density, the unit is kg / m 3 ; A represents the blade wind sweeping area, the unit is m 2 ; A = H · D, wherein H represents the height of the fan, and D represents the diameter of the fan; v(t) represents the instantaneous wind speed, the unit is m / s; C p represents the power coefficient of wind energy converted into mechanical energy, the value range is between 0.3 and 0.4; η represents the comprehensive efficiency of the wind power generation system, including the generator efficiency and the transmission efficiency, the value range is between 0.8 and 0.9.

[0197] Specifically, the working process of the wind power module 5 mainly depends on the efficient operation of the vertical spiral wind power generator. When the natural wind acts on the blades of the generator, the blades will rotate with the wind. These blades are closely connected to the rotor of the generator through the main shaft, so the rotation of the blades will drive the rotor to rotate together. In this rotation process, mechanical energy is generated and then converted into electrical energy. The converted electrical energy is transmitted to the energy storage module 8 for subsequent use or distributed to the power grid.

[0198] Further explanation, in step B, the working process of the wave energy module 6 specifically includes the following steps:

[0199] Step B5: Under the continuous action of the wave, the steel disc drives the center rigid shaft and the coils at both ends to move up and down, and the coils cut the magnetic induction lines under the action of the magnetic field change of the two annular permanent magnets and induce current, The power generation of the wave energy module 6 obtained is transmitted to the energy storage module 8;

[0200] Wherein, the power generation of the wave energy module 6 is calculated as follows:

[0201] Define the wave motion as a simple harmonic motion, the relative velocity v(t) changes with time, get the wave height H s And the wave frequency period T, then the relative velocity of the simple harmonic motion is:

[0202] v(t) = A·ω·cos(ωt)

[0203] Wherein, A represents the wave amplitude, with the unit of m; ω represents the angular frequency, with the unit of rad / s; T represents the wave period, with the unit of s; H s represents the wave height, with the unit of m;

[0204] The average velocity is calculated by the maximum value of the wave motion:

[0205]

[0206] According to Faraday's law of electromagnetic induction, the instantaneous value of the induced electromotive force is:

[0207]

[0208] The total electromotive force of the coil is:

[0209]

[0210] The instantaneous power is:

[0211]

[0212] Since the instantaneous power varies with time, the average value P of the instantaneous power needs to be calculated avg :

[0213]

[0214] P avg =N·B·L·v avg ·I

[0215] Substituting v avg , finally we get:

[0216]

[0217] Where B represents the magnetic induction intensity, with the unit of T; N represents the number of turns of the coil; L represents the effective length of the coil, with the unit of m; I represents the current, with the unit of A.

[0218] Specifically, the wave energy power generation module 6 can efficiently capture and utilize wave energy through the careful design of the mechanical structure and electromagnetic conversion principle. In the structural design of the offshore device, compared with photovoltaic power generation and wind power generation, wave energy power generation has higher energy density and more stable energy output.

[0219] Further explanation, in step C, the intelligent scheduling module 7 controls the floating and sinking module 3 to start the protection mode, adjusts the shell 1 to sink to the safe depth, which specifically includes the following steps:

[0220] Step C1: The depth of the shell 1 is monitored in real time by the depth sensor;

[0221] Step C2: The intelligent scheduling module 7 automatically adjusts the water volume V water of the water storage compartment according to the depth data, so that the buoyancy and gravity of the shell 1 are balanced, and the safe depth is maintained;

[0222] Wherein, the buoyancy of the shell 1 is controlled by the buoyancy formula:

[0223] F b =ρ sea ·V water ·g

[0224] Where F b represents the buoyancy; ρ sea represents the seawater density; V water represents the water volume of the water in the water storage compartment; g represents the acceleration of gravity;

[0225] The depth of the shell 1 is adjusted by the gravity formula:

[0226] T hinge =F b ·d

[0227] F b = F g + T hinge

[0228] p sea · V water · g = m device · g

[0229]

[0230] wherein T hinge represents the tension of the hinge, d represents the lever arm between the center of buoyancy and the hinge point; F g represents the gravity of the shell 1.

[0231] The core idea of the float-sink module 3 is to make the wind-solar-wave cooperative power generation device stable at the preset depth by adjusting the balance between the buoyancy and the gravity, and to cope with the interference of external waves and water flow.

[0232] Further explanation, in S4, the threshold condition for relieving extreme sea conditions includes a swing amplitude threshold < 0.5m, a swing time threshold > 18s, and a swing frequency threshold less than 0.15HZ.

[0233] It should be noted that the swing amplitude threshold refers to the displacement amplitude of the wind-solar-wave cooperative power generation device in the process of wave fluctuation in the vertical or horizontal direction. Setting it to 0.5 meters means that when the maximum displacement of the wind-solar-wave cooperative power generation device (from the water surface to the highest point or the lowest point of the device) exceeds 0.5 meters, it is considered that the fluctuation amplitude of the wave is large, and the protection mode needs to be started.

[0234] The swing time threshold refers to the duration of the periodic fluctuation of the wave. If the vibration or swing of the wind-solar-wave cooperative power generation device lasts more than 18 seconds, it indicates that the wave period may be longer or the fluctuation is larger, which may have a sustained impact on the wind-solar-wave cooperative power generation device, so the protection mode needs to be started.

[0235] The swing frequency refers to the number of vibrations or swings per second caused by the wave, with the unit of hertz (Hz). 0.15Hz means that the wave period is relatively long, which may have a relatively sustained impact on the wind-solar-wave cooperative power generation device. Therefore, when the frequency value exceeds this value, it is identified as a relatively extreme sea condition, and the protection mode needs to be started.

[0236] Specifically, first, based on the physical characteristics and the characteristics of the actual environment, the threshold conditions of the swing amplitude, time and frequency are set. Then, combined with the corresponding sensor signals in the sensor module 2, the frequency and amplitude characteristics are extracted by using Kalman filtering or Fourier transform. The multi-source data of the three conditions are comprehensively analyzed by using the machine learning algorithm SVM. When the threshold conditions for relieving extreme sea conditions are met, the protection mode is automatically relieved, the solar and wind power generation is gradually restored, and the normal operation of the wind-solar-wave cooperative power generation device is ensured.

[0237] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for the purpose of explaining the principles of the present application and cannot be interpreted in any way as a limitation on the scope of protection of the present application. Based on the explanations herein, those skilled in the art can conceive other specific embodiments of the present application without creative labor, and these equivalent variations or replacements are all included within the scope defined by the claims of the present application.

Claims

1. A method for scheduling power generation in coordination with wind, light and wave, characterized in that, Be applied to a wind light wave collaborative scheduling power generation device The wind light wave collaborative scheduling power generation device includes a shell (1) and a sensor module (2), a floating and sinking module (3), a photovoltaic power generation module (4), a wind power generation module (5), a wave energy power generation module (6) and an intelligent scheduling module (7) installed in the shell (1); The sensor module (2) includes a plurality of sensors for real-time collection of environmental data; The inside of the shell (1) is provided with a water storage bin, and the outside of the shell (1) is connected with an anchor chain, the floating and sinking module (3) is used for automatically filling or draining water in the water storage bin according to the opening and closing state of the protection mode, and adjusting the tension of the anchor chain, so as to adjust the floating and sinking state of the shell (1); The photovoltaic power generation module (4) includes a plurality of solar panels controlled by a control motor to control the opening and closing state, azimuth angle and elevation angle of the solar panels, and the solar panels are used for photovoltaic power generation to obtain solar energy; The wind power generation module (5) includes a vertical spiral wind turbine, which is used for wind power generation to obtain wind energy; The wave energy power generation module (6) includes a steel disc and two ring-shaped permanent magnets connected by a spring telescopic rod and a central rigid shaft, the relative movement of the steel disc between the two ring-shaped permanent magnets is used for floating up and down with the fluctuation of waves, converting the kinetic energy of waves into mechanical energy, and generating electric current through electromagnetic induction principle to obtain wave energy; The energy storage module (8) is used for storing the solar energy, wind energy and wave energy; The intelligent scheduling module (7) is used for controlling whether the floating and sinking module (3) starts the protection mode according to the real-time monitored environmental data, and switching or cooperating the photovoltaic power generation module (4), the wind power generation module (5) and the wave energy power generation module (6) according to the protection mode of the floating and sinking module (3); The sensor module (2) specifically includes: A wave height meter for monitoring wave information including wave height and wave frequency; An illumination sensor for monitoring the illumination intensity above sea level; A wind speed and direction sensor for obtaining wind speed and direction data; A weather sensor for collecting weather conditions including air temperature, humidity and precipitation; An attitude sensor for collecting the inclination angle and depth of the shell (1); A pose sensor for collecting the change range of the motion amplitude, yaw angle and elevation angle of the shell (1) at the diving position; An acceleration sensor for measuring the acceleration change of the shell (1) to obtain the vertical displacement; A depth sensor for real-time monitoring of the depth of the shell (1); The wind light wave collaborative scheduling power generation method includes the following steps: Step A, real-time collection of environmental data by the sensor module (2); Step B, judging the current sea state level according to the real-time collected environmental data, the intelligent scheduling module (7) intelligently switches or cooperates the photovoltaic power generation module (4), the wind power generation module (5) and the wave energy power generation module (6) to work, and stores the generated solar energy, wind energy and wave energy to the energy storage module (8); Step C, when the real-time monitoring of sea conditions data reaches the preset extreme sea conditions, the intelligent scheduling module (7) controls the floating and sinking module (3) to start the protection mode, closes the photovoltaic power generation module (4) and the wind power generation module (5), adjusts the shell (1) to sink to the safe depth, and switches to the wave power generation module (6) to work alone; Step D, in the process of gradually removing the extreme sea conditions, the sensor module (2) continuously monitors the environmental data, and when the real-time monitoring of the environmental data meets the threshold conditions for removing the extreme sea conditions, the floating and sinking module (3) removes the protection mode, adjusts the shell (1) to float to the sea level, and the intelligent scheduling module (7) restores the normal scheduling function of power generation; In step B, the current sea conditions are judged according to the real-time collected environmental data, and the intelligent scheduling module (7) intelligently switches or cooperates the photovoltaic power generation module (4), the wind power generation module (5) and the wave power generation module (6) to work, as shown in the following table: Among them, the wave height is monitored by a wave height meter; the wind speed is monitored by a wind speed and direction sensor; the light intensity is monitored by a light sensor; In step C, the intelligent scheduling module (7) controls the floating and sinking module (3) to start the protection mode, adjusts the shell (1) to sink to the safe depth, which specifically includes the following steps: Step C1: The depth of the shell (1) is monitored in real time by the depth sensor; Step C2: The intelligent scheduling module (7) automatically adjusts the water quantity of the water storage warehouse according to the depth data Balance the buoyancy and gravity of the shell (1) to maintain a safe depth The shell (1) is controlled by the buoyancy formula: wherein, represents the buoyancy; represents the seawater density; represents the water amount of the water in the water storage; represents the gravitational acceleration; The depth of the shell (1) is adjusted by the gravity formula: wherein represents the tension of the hinge, represents the lever arm between the center of buoyancy and the hinge point; represents the weight of the housing (1), represents the mass of the housing (1).

2. The method according to claim 1, wherein, In step B, the working process of the photovoltaic power generation module (4) specifically includes the following steps: Step B1: The light intensity data is collected in real time by the light sensor, compared with the set threshold, and according to the comparison result, the opening and closing state of multiple solar panels is adjusted by controlling the motor; When the light intensity reaches the set threshold, the motor drives the solar panel to open for photovoltaic power generation; When the light intensity does not reach the set threshold, the motor drives the solar panel to close to protect the solar panel; Step B2: In the process of opening the solar panel, the light sensor continuously monitors the surrounding light intensity, and calculates the best azimuth and elevation angle of the solar panel by using the solar position algorithm: wherein, denotes the altitude of the sun, i.e. the angle between the sun and the horizon; denotes the azimuth of the sun, i.e. the angle of the sun relative to due north; is the latitude of the observation point; is the declination of the sun; is the hour angle, which denotes the angular difference between the current time and the solar noon. Step B3: According to the best azimuth and elevation angle, the motor drives the horizontal shaft and vertical shaft of the solar panel to adjust the azimuth and elevation angle of the solar panel, so that it is aligned with the incident direction of sunlight, and the obtained power generation of the solar panel is transmitted to the energy storage module (8); The power generation of the solar panel is calculated by using the radiation amount: wherein, represents the instantaneous power generation, in units of ; represents the comprehensive efficiency of the solar panel, including the panel conversion efficiency, inverter efficiency, temperature influence, and comprehensive efficiency of the dust factor, with a value range of 0.15-0.22; represents the area of the solar panel, in units of ; represents the solar irradiance, in units of ; represents the continuous power generation; When the solar irradiance is relatively stable for a certain period of time : 。 3. The method according to claim 1, wherein, In step B, the working process of the wind power generation module (5) specifically includes the following steps: Step B4: The blades of the vertical spiral wind turbine rotate following the wind, the blades are connected with the rotor of the vertical spiral wind turbine through the main shaft, drive the rotor to rotate and generate mechanical energy at the same time, and convert the mechanical energy into electrical energy and transmit it to the energy storage module (8); The power generation of the wind power generation module (5) is calculated as follows: The amount of power generated over a period of time is represented as: When the wind speed is constant over a certain period of time , it can be simplified as: where P(t)1represents the instantaneous power generation, with the unit of ; represents the air density, with the unit of ; represents the swept area of the blade, with the unit of ; where represents the height of the fan, represents the diameter of the fan; represents the instantaneous wind speed, with the unit of ; represents the power coefficient of the wind energy converted into mechanical energy, with the value ranging between 0.3 and 0.4; represents the comprehensive efficiency of the wind power generation system, including the generator efficiency and the transmission efficiency, with the value ranging between 0.8 and 0.

9.

4. The method according to claim 1, wherein, In step B, the working process of the wave energy power generation module (6) specifically includes the following steps: Step B5: under the continuous action of the wave, the steel disc drives the center rigid shaft and the coils at both ends thereof to move up and down, the coils cut the magnetic induction lines under the action of the magnetic field change of the two annular permanent magnets and induce current, and the power generation amount of the wave energy power generation module (6) obtained is transmitted to the energy storage module (8); Wherein, the power generation amount of the wave energy power generation module (6) is calculated as follows: The wave motion is defined as a simple harmonic motion, the relative velocity is a function of time, the wave height and the wave frequency period is obtained, then the relative velocity of the simple harmonic motion is: wherein, represents the wave amplitude in m; ; represents the angular frequency in rad / s; represents the wave frequency period in s; represents the wave height in m; Average speed Using the maximum value of the wave motion: According to Faraday's law of electromagnetic induction, the instantaneous value of induced electromotive force is: The total electromotive force of the coil is: The instantaneous power is: Since the instantaneous power varies with time, its average value needs to be calculated : Substitute Finally, we obtain: wherein, represents the magnetic induction intensity, with the unit of T; represents the number of turns of the coil; represents the effective length of the coil, with the unit of m; represents the current, with the unit of A.

5. The method according to claim 1, wherein, In S4, the threshold conditions for relieving the extreme sea conditions include a swing amplitude threshold <0.5m, a swing time threshold >18s, and a swing frequency threshold less than 0.15HZ.

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