A kind of active-passive hybrid wave energy generation method based on oscillating buoy

Abstract

The application discloses a kind of based on oscillating float active-passive hybrid wave energy power generation method, it is related to marine renewable energy technology field, the application includes step one, external energy receiving module, step two, internal energy transmission module, step three, active-passive hybrid control module and step four, electric energy conversion storage module.The application breaks through the limitation of traditional energy trapping frequency band by built-in nonlinear dynamics mechanism, realizes the efficient directional transmission of wideband wave energy to internal vibrator, can be stable and adapt to multi-frequency actual marine wave scene, and continuously maintains higher energy trapping efficiency in complex sea conditions.For the defects of high energy consumption of active vibration control and weak passive vibration reduction of existing energy trapping devices, active-passive hybrid control strategy is adopted, which effectively reduces the dependence of active control and operating energy consumption, and adapts to long-term continuous energy trapping operation in marine environment.

Description

Technical Field

[0001] This invention relates to the field of marine renewable energy technology, specifically to a method for generating wave energy based on a hybrid active and passive wave energy system using an oscillating buoy. Background Technology

[0002] Driven by the dual-carbon strategy, wave energy, as a renewable energy source with abundant reserves, has become a research hotspot in the energy field for its efficient and reliable utilization. Point-absorbing oscillating float devices are one of the mainstream technologies for wave energy utilization, but traditional linear resonant devices suffer from problems such as narrow energy capture bandwidth, high energy consumption or poor adaptability of control strategies, and insufficient structural reliability under extreme sea conditions. Therefore, it is necessary to analyze a hybrid active-passive wave energy generation method based on oscillating floats.

[0003] Existing technologies, such as the wave energy generation method disclosed in patent application CN119844275B, are based on a float and a water storage tank. The float contains a diaphragm pump, which includes a top plate, a bottom plate, and a deformable flexible wall. These components together form a cavity. The top plate has an inlet pipe with a one-way valve and an outlet pipe. The bottom plate is connected to a damping disc via a connector. The water storage tank contains a water storage chamber, a turbine generator set located below the water storage chamber, and an energy storage battery connected to the turbine generator set. The water storage chamber is connected to the outlet pipe. The float moves up and down with the waves, causing the flexible wall to deform. This changes the volume of the diaphragm pump cavity, drawing seawater into the diaphragm pump cavity or pumping seawater from the cavity into the water storage chamber, driving the turbine generator set to generate electricity, which is then stored in the energy storage battery. This power generation method effectively solves the problems of high cost and short service life.

[0004] Existing technologies can meet the basic requirements of a hybrid active-passive wave energy generation method based on an oscillating float, but there are also some potential defects and challenges, which are reflected in the following aspects: First, traditional energy harvesting devices based on the linear resonance principle have a fixed natural frequency and a narrow operating bandwidth. When the actual wave frequency deviates from the device's natural frequency, the energy harvesting efficiency will be significantly reduced, resulting in a low average power output of such devices under broadband random wave conditions in real marine environments.

[0005] Second, the control strategy adopts a pure active control strategy, which has high energy consumption and strong dependence on hardware system. It has high requirements for hardware response speed, computing power and endurance, resulting in increased operating costs. The pure passive control strategy relies on fixed structural parameters and mechanical characteristics, which cannot dynamically adapt to the random changes of waves and has limited energy harvesting optimization capabilities.

[0006] Third, under resonant conditions or extreme sea conditions, the huge instantaneous impact force generated by waves will directly affect the key load-bearing components and transmission structures of the existing equipment, such as rigid connecting rods, generator stators or rotors, and sealing components, causing them to wear more quickly, shorten their fatigue life, and even cause structural damage, seriously affecting the long-term stable operation and maintenance safety of the equipment. Summary of the Invention

[0007] The purpose of this invention is to provide a hybrid active and passive wave energy generation method based on an oscillating float, which solves the problems of narrow energy capture bandwidth, high control energy consumption, and insufficient structural reliability in the background technology.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a method for generating wave energy based on an oscillating float and a hybrid active-passive wave energy, including step one, an external energy receiving module, step two, an internal energy transfer module, step three, an active-passive hybrid control module, and step four, an energy conversion and storage module.

[0009] Step 1: External energy receiving module. Random waves act on the external float, causing it to sway. Wave data and float motion data are acquired through sensors, and the sway motion response index of the external float shell of the oscillating float is analyzed.

[0010] Step 2: Internal Energy Transfer Module. Based on the heave motion response index of the outer float shell of the oscillating float, it determines whether the external motion is abnormal. If it is normal, it extracts wave data and couples it to the internal oscillator through the PTO system and the hybrid controller to generate internal conversion influence data of the oscillating float and analyzes the energy response index of the internal resonance effect of the oscillating float.

[0011] Step 3: The active-passive hybrid control module calculates the ratio index of the active-passive control force of the oscillating float based on the heave motion response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float.

[0012] Step 4: The power conversion and storage module determines whether the ratio of active and passive control forces is abnormal based on the obtained ratio index of the oscillating float. If it is in a normal state, the energy transfer mechanism is triggered, and the wave energy is converted into electrical energy through mechanical energy-electrical energy conversion and voltage stabilization storage. If the ratio is abnormal, the system suspends energy transfer.

[0013] Furthermore, the wave data and buoy motion data specifically include: the effective wave height, wave frequency, and wave period of the incident waves at each time period of the oscillating buoy; and the buoy motion data include the draft and heave displacement amplitude of the outer buoy shell of the oscillating buoy at each time period.

[0014] Furthermore, the specific analysis method for the heave motion response index of the outer float shell of the oscillating float is as follows: Based on the effective wave height, wave frequency, wave period, draft depth, and heave displacement amplitude of the incident waves at each time period of the oscillating float, these values ​​are compared with the safe ranges for the effective wave height, wave frequency, wave period, draft depth, and heave displacement amplitude of the incident waves at each time period of the oscillating float stored in the database. By comparing the safe range of draft and heave displacement amplitude of the outer float shell, if the effective wave height, wave frequency, and wave period of the incident wave during a certain period of time are within the safe range of effective wave height, wave frequency, and wave period, and the draft and heave displacement amplitude of the outer float shell are within the safe range of draft and heave displacement amplitude, then the external heave motion response index of the outer float shell of the oscillating float is recorded as 1; otherwise, it is recorded as -1. Thus, the external heave motion response index of the outer float shell of the oscillating float is obtained. , The values ​​include 1 and -1.

[0015] Furthermore, the specific analysis method for determining whether the external motion is abnormal is as follows: based on the external heave motion response index of the outer float shell of the oscillating float, when the external heave motion response index of the outer float shell of the oscillating float is 1, it indicates that it is in a normal state. The coupling signal between the PTO system and the internal oscillator is triggered by the hybrid controller to transmit the wave data to the internal oscillator in real time, thereby generating the internal transformation influence data of the oscillating float.

[0016] Furthermore, the internal transformation influence data specifically includes: the internal transformation influence data of the oscillating float includes the control response time of the internal oscillator, the ratio of the mass of the internal oscillator to the mass of the external float shell, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force.

[0017] Furthermore, the energy response index for analyzing the internal resonance effect of the oscillating float is specifically analyzed as follows: Based on the obtained control response time of the internal oscillator, the ratio of the internal oscillator mass to the external float shell mass, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force, these parameters are compared with the safe ranges for the control response time, the ratio of the internal oscillator mass to the external float shell mass, and the viscoelastic damping coefficient stored in the database. By comparing the relative displacement safety range, relative velocity safety range, and control force safety range, if the control response time of the internal oscillator of the oscillating float is within the control response time safety range, the ratio of the internal oscillator mass to the external float shell mass is within the ratio of the internal oscillator mass to the external float shell mass is within the safety range, the viscoelastic damping coefficient is within the viscoelastic damping coefficient safety range, the relative displacement is within the relative displacement safety range, the relative velocity is within the relative velocity safety range, and the control force is within the control force safety range, then the energy response index of the internal resonance effect of the oscillating float is recorded as 1; otherwise, it is recorded as -1. Thus, the energy response index of the internal resonance effect of the oscillating float is obtained. , The values ​​include 1 and -1.

[0018] Furthermore, the specific analysis method for calculating the ratio of active to passive control forces of the oscillating float is as follows: based on the obtained heave motion response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float, the damping and stiffness parameters of the internal oscillator are adjusted by a hybrid controller to analyze the basic value of the active control ratio. The specific formula is as follows: ,in, Represented as structural safety weights, This is expressed as the energy capture weight, which is then used to analyze the ratio index of the active and passive control forces of the oscillating float. , , This represents the upper limit of passive control. This represents the proportion of energy consumption thresholds that are actively controlled.

[0019] Furthermore, the specific analysis method for determining whether the ratio of active and passive control forces is abnormal is as follows: based on the obtained ratio index of active and passive control forces of the oscillating float, the ratio index of active and passive control forces of the oscillating float is compared with the safe range of the ratio index of active and passive control forces of the oscillating float stored in the database. If the ratio index of active and passive control forces of the oscillating float is within the safe range of the ratio index, it indicates that the ratio of active and passive control forces is in a normal state.

[0020] Furthermore, the specific analysis method of the trigger transmission mechanism is as follows: when the active and passive control forces are in a normal state, the mechanical energy generated by the internal oscillator is obtained and converted into electrical energy by the generator. The mechanical energy carried by the motion of the internal oscillator is extracted and the mechanical energy carried by the motion is driven by the rigid connecting rod to make the moving part of the linear generator reciprocate linearly along the axis of the stator, so as to transfer the mechanical energy of the oscillator to the moving part of the generator, thereby converting it into the mechanical kinetic energy of the moving part and outputting electrical energy.

[0021] Furthermore, the specific analysis method for completing the wave energy to electrical energy conversion is as follows: through the rectifier bridge circuit, the low-frequency alternating current output by the generator is converted into unidirectional pulsating direct current, and the unidirectional pulsating direct current is processed for energy storage, and then smoothed and stored through the filtering and energy storage circuit.

[0022] The beneficial effects of this invention are as follows: First, existing wave energy harvesting devices are generally limited by the technical limitations of narrow frequency adaptation. This invention breaks through the limitations of traditional energy harvesting frequency bands by incorporating nonlinear dynamic mechanisms, such as bistable characteristics, and realizes the efficient directional transfer of broadband wave energy to the internal oscillator. It can stably adapt to multi-frequency actual ocean wave scenarios and maintain a high energy harvesting efficiency under complex sea conditions.

[0023] Second, in view of the shortcomings of existing energy harvesting devices, such as high energy consumption for active vibration control and weak passive vibration reduction effect, this invention adopts a hybrid active and passive control strategy, which effectively reduces the dependence on active control and operating energy consumption, and is suitable for long-term continuous energy harvesting operations in marine environments.

[0024] Third, the traditional rigid vibration reduction structure of existing energy harvesting devices is difficult to alleviate the impact wear problem of key components. This invention utilizes the hysteretic energy dissipation and smooth impact characteristics of memory damping to significantly reduce the amplitude of impact force transmitted to key parts, reduce mechanical wear, improve the service life and operational reliability of the device under complex marine conditions, and reduce the total life cycle maintenance cost, thus having stable engineering application value. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the implementation steps of the method of the present invention.

[0027] Figure 2 This is a schematic diagram of an oscillating float-type wave energy generation device. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Reference Figure 1 , Figure 2 As shown, the present invention provides a method for generating wave energy based on an oscillating float using a hybrid active-passive wave energy system, including step one, an external energy receiving module, step two, an internal energy transfer module, step three, an active-passive hybrid control module, and step four, an energy conversion and storage module.

[0030] Step 1: External energy receiving module. Random waves act on the external float, causing it to sway. Wave data and float motion data are acquired through sensors, and the sway motion response index of the external float shell of the oscillating float is analyzed.

[0031] Step 2: Internal Energy Transfer Module. Based on the heave motion response index of the outer float shell of the oscillating float, it determines whether the external motion is abnormal. If it is normal, it extracts wave data and couples it to the internal oscillator through the PTO system and the hybrid controller to generate internal conversion influence data of the oscillating float and analyzes the energy response index of the internal resonance effect of the oscillating float.

[0032] Step 3: The active-passive hybrid control module calculates the ratio index of the active-passive control force of the oscillating float based on the heave motion response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float.

[0033] Step 4: The power conversion and storage module determines whether the ratio of active and passive control forces is abnormal based on the obtained ratio index of the oscillating float. If it is in a normal state, the energy transfer mechanism is triggered, and the wave energy is converted into electrical energy through mechanical energy-electrical energy conversion and voltage stabilization storage. If the ratio is abnormal, the system suspends energy transfer.

[0034] In the above embodiments, the wave data and float motion data specifically include: the effective wave height, wave frequency, and wave period of the incident waves at each time period of the oscillating float; and the float motion data include the draft and heave displacement amplitude of the outer float shell of the oscillating float at each time period.

[0035] In the above embodiments, the specific analysis method for analyzing the heave motion response index of the outer float shell of the oscillating float is as follows: Based on the effective wave height, wave frequency, wave period, draft depth, and heave displacement amplitude of the incident waves at each time period of the oscillating float, the effective wave height, wave frequency, wave period, draft depth, and heave displacement amplitude of the incident waves at each time period of the oscillating float are compared with the safe ranges for the effective wave height, wave frequency, and wave period of the incident waves stored in the database. By comparing the safe range of draft and heave displacement amplitude of the external float shell, if the effective wave height, wave frequency, and wave period of the incident wave during a certain time period are within the safe range of effective wave height, wave frequency, and wave period, and the draft and heave displacement amplitude of the external float shell are within the safe range of draft and heave displacement amplitude, then the external heave motion response index of the external float shell of the oscillating float is recorded as 1; otherwise, it is recorded as -1. Thus, the external heave motion response index of the external float shell of the oscillating float is obtained. , The values ​​include 1 and -1.

[0036] In the above embodiment, the specific analysis method for determining whether the external motion is abnormal is as follows: based on the external heave motion response index of the outer float shell of the oscillating float, when the external heave motion response index of the outer float shell of the oscillating float is 1, it indicates that it is in a normal state. The coupling signal between the PTO system and the internal oscillator is triggered by the hybrid controller to transmit the wave data to the internal oscillator in real time, thereby generating the internal transformation influence data of the oscillating float.

[0037] In the above embodiments, the internal transformation influence data specifically includes: the internal transformation influence data of the oscillating float includes the control response time of the internal oscillator, the ratio of the mass of the internal oscillator to the mass of the external float shell, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force.

[0038] In the above embodiments, the energy response index for analyzing the internal resonance effect of the oscillating float is specifically analyzed as follows: Based on the obtained control response time of the internal oscillator, the ratio of the internal oscillator mass to the external float shell mass, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force, these parameters are compared with the safe ranges for the control response time, the ratio of the internal oscillator mass to the external float shell mass, and the viscoelastic damping coefficient stored in the database. By comparing the safe ranges for relative displacement, relative velocity, and control force, if the control response time of the internal oscillator of the oscillating float is within the safe range, the ratio of the mass of the internal oscillator to the mass of the external float shell is within the safe range, the viscoelastic damping coefficient is within the safe range, the relative displacement is within the safe range, the relative velocity is within the safe range, and the control force is within the safe range, then the energy response index of the internal resonance effect of the oscillating float is recorded as 1; otherwise, it is recorded as -1. This yields the energy response index of the internal resonance effect of the oscillating float. , The values ​​include 1 and -1.

[0039] In the above embodiment, the specific analysis method for calculating the ratio of active and passive control forces of the oscillating float is as follows: based on the obtained heave motion response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float, the damping and stiffness parameters of the internal oscillator are adjusted by a hybrid controller to analyze the basic value of the active control ratio. The specific formula is as follows: ,in, Represented as structural safety weights, This is expressed as the energy capture weight, which is then used to analyze the ratio index of the active and passive control forces of the oscillating float. , , This represents the upper limit of passive control. This represents the proportion of energy consumption thresholds that are actively controlled.

[0040] It should be noted that the minimum proportion of active control corresponding to the upper limit of passive control is taken as the final value; when the basic ratio is between the minimum proportion of passive control and the proportion of active control energy consumption threshold, the basic ratio is taken as the final value; when the basic ratio is higher than the proportion of active control energy consumption threshold, the threshold is taken as the final value.

[0041] In the above embodiments, the specific analysis method for determining whether the ratio of active and passive control forces is abnormal is as follows: based on the obtained ratio index of active and passive control forces of the oscillating float, the ratio index of active and passive control forces of the oscillating float is compared with the safe range of the ratio index of active and passive control forces of the oscillating float stored in the database. If the ratio index of active and passive control forces of the oscillating float is within the safe range of the ratio index, it indicates that the ratio of active and passive control forces is in a normal state.

[0042] In the above embodiment, the trigger transmission mechanism is specifically analyzed as follows: when the active and passive control forces are in a normal state, the mechanical energy generated by the internal oscillator is obtained and converted into electrical energy by the generator. The mechanical energy carried by the motion of the internal oscillator is extracted and the mechanical energy carried by the motion is driven by the rigid connecting rod to make reciprocating linear motion of the moving part of the linear generator along the axis of the stator. The mechanical energy of the oscillator is transferred to the moving part of the generator, thereby converting it into the mechanical kinetic energy of the moving part and outputting electrical energy.

[0043] In the above embodiment, the specific analysis method for completing the wave energy to electrical energy conversion is as follows: the low-frequency alternating current output by the generator is converted into unidirectional pulsating direct current through the rectifier bridge circuit, and the unidirectional pulsating direct current is processed for energy storage, and then smoothed and stored through the filtering and energy storage circuit.

[0044] It should be noted that energy storage circuits include capacitors or batteries.

[0045] The above content is merely an example and illustration of the concept of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the concept of the invention or exceed the scope defined by the present invention, and all such modifications and additions should fall within the protection scope of the present invention.

Claims

1. A hybrid active-passive wave energy generation method based on an oscillating buoy, characterized in that, include: Step 1: External energy receiving module. Random waves act on the external float, causing it to sway. Wave data and float motion data are acquired through sensors, and the sway motion response index of the external float shell of the oscillating float is analyzed. Step 2: Internal energy transfer module. Based on the heave motion response index of the outer float shell of the oscillating float, it determines whether the external motion is abnormal. If it is normal, it extracts wave data and couples it to the internal oscillator through the PTO system and the hybrid controller to generate internal conversion influence data of the oscillating float and analyzes the energy response index of the internal resonance effect of the oscillating float. Step 3: The active-passive hybrid control module calculates the ratio index of the active-passive control force of the oscillating float based on the heave motion response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float. Step 4: The power conversion and storage module determines whether the ratio of active and passive control forces is abnormal based on the obtained ratio index of the oscillating float. If it is in a normal state, the energy transfer mechanism is triggered, and the wave energy is converted into electrical energy through mechanical energy-electrical energy conversion and voltage stabilization storage. If the ratio is abnormal, the system suspends energy transfer.

2. The method for generating wave energy based on a hybrid active-passive system using an oscillating buoy according to claim 1, characterized in that, The wave data and buoy motion data specifically include: the effective wave height, wave frequency, and wave period of the incident waves at each time period of the oscillating buoy; and the buoy motion data include the draft and heave displacement amplitude of the outer buoy shell at each time period of the oscillating buoy.

3. The method for generating wave energy based on a hybrid active-passive system using an oscillating buoy according to claim 2, characterized in that, The specific analysis method for the heave motion response index of the outer float shell of the oscillating float is as follows: Based on the effective wave height, wave frequency, wave period, draft, and heave displacement amplitude of the incident waves at various time intervals of the oscillating buoy, these parameters are compared with the safe intervals for the effective wave height, wave frequency, wave period, draft, and heave displacement amplitude of the incident waves at various time intervals stored in the database. If the effective wave height, wave frequency, wave period, draft, and heave displacement amplitude of the incident waves at a certain time interval are within the safe intervals, the external heave motion response index of the oscillating buoy's external ... , The values ​​include 1 and -1.

4. The method for generating wave energy based on a hybrid active-passive system using an oscillating buoy according to claim 3, characterized in that, The specific analysis method for determining whether external motion is abnormal is as follows: Based on the external heave motion response index of the outer float shell of the oscillating float, when the external heave motion response index of the outer float shell of the oscillating float is 1, it indicates a normal state. The PTO system and the internal oscillator are coupled by triggering the hybrid controller to transmit wave data to the internal oscillator in real time, generating internal transformation influence data of the oscillating float.

5. A hybrid active-passive wave energy generation method based on an oscillating buoy according to claim 4, characterized in that, The internal transformation influence data specifically includes: the control response time of the internal oscillator of the oscillating float, the ratio of the mass of the internal oscillator to the mass of the external float shell, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force.

6. A hybrid active-passive wave energy generation method based on an oscillating buoy according to claim 5, characterized in that, The specific analytical method for the energy response index of the internal resonance effect of the oscillating float is as follows: Based on the obtained control response time of the internal oscillator, the ratio of the internal oscillator mass to the external float shell mass, the viscoelastic damping coefficient, relative displacement, relative velocity, and control force of the oscillating float, these parameters are compared with the safe ranges for the control response time, the ratio of the internal oscillator mass to the external float shell mass, the viscoelastic damping coefficient, the relative displacement, the relative velocity, and the control force stored in the database. Compared to the control force safety range, if the control response time of the internal oscillator of the oscillating float is within the control response time safety range, the ratio of the internal oscillator mass to the external float shell mass is within the ratio of the internal oscillator mass to the external float shell mass is within the safety range, the viscoelastic damping coefficient is within the viscoelastic damping coefficient safety range, the relative displacement is within the relative displacement safety range, the relative velocity is within the relative velocity safety range, and the control force is within the control force safety range, then the energy response index of the internal resonance effect of the oscillating float is recorded as 1; otherwise, it is recorded as -1. Thus, the energy response index of the internal resonance effect of the oscillating float is obtained. , The values ​​include 1 and -1.

7. A method for generating wave energy based on a hybrid active-passive system using an oscillating buoy, as described in claim 6, is characterized in that... The specific analysis method for calculating the ratio of active to passive control forces of the oscillating float is as follows: Based on the heave response index of the outer float shell and the energy response index of the internal resonance effect of the oscillating float, the damping and stiffness parameters of the internal oscillator are adjusted by a hybrid controller to analyze the baseline value of the active control ratio. The specific formula is as follows: ,in, Represented as structural safety weights, This is expressed as the energy capture weight, which is then used to analyze the ratio index of the active and passive control forces of the oscillating float. , , This represents the upper limit of passive control. This represents the proportion of energy consumption thresholds that are actively controlled.

8. A hybrid active-passive wave energy generation method based on an oscillating buoy according to claim 7, characterized in that, The specific analysis method for determining whether the ratio of active to passive control forces is abnormal is as follows: Based on the obtained ratio index of the active and passive control forces of the oscillating float, the ratio index of the active and passive control forces of the oscillating float is compared with the safe range of the ratio index of the active and passive control forces of the oscillating float stored in the database. If the ratio index of the active and passive control forces of the oscillating float is within the safe range of the ratio index, it indicates that the ratio of the active and passive control forces is in a normal state.

9. A method for generating wave energy based on a hybrid active-passive system using an oscillating buoy, as described in claim 8, is characterized in that... The specific analysis method for the triggering and propagation mechanism is as follows: When the active and passive control forces are in normal condition, the mechanical energy generated by the internal oscillator is obtained and converted into electrical energy by the generator. The mechanical energy carried by the motion of the internal oscillator is extracted and driven by the rigid connecting rod to make the moving part of the linear generator reciprocate linearly along the axis of the stator. The mechanical energy of the oscillator is transferred to the moving part of the generator, and then converted into the mechanical kinetic energy of the moving part, and output as electrical energy.

10. A hybrid active-passive wave energy generation method based on an oscillating buoy according to claim 9, characterized in that, The specific analysis method for completing the conversion of wave energy into electrical energy is as follows: The low-frequency alternating current output from the generator is converted into unidirectional pulsating direct current through the rectifier bridge circuit, and the unidirectional pulsating direct current is processed for energy storage, and then smoothed and stored through filtering and energy storage circuits.

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