TWM633168U - Wave-wind mutually supplementing power supply system for continuous power generation - Google Patents

Abstract

A wave-wind mutually supplementing power supply system for continuous power generation, comprising a wave kinetic energy module disposed in the sea and utilizing kinetic energy generated by sea water wave motion to generate power, and combining wave power generation with a wind power generation device so as to generate power continuously. The wave kinetic energy module comprises: a wave acquisition module , a drive shaft , a generator , a speed shift module , and an automatic control module . The wave acquisition module is used to acquire kinetic energy generated by sea water wave motion. The drive shaft utilizes an output kinetic energy of the wave acquisition module to drive. The generator receives the kinetic energy of the drive shaft and converts the same to electricity. The speed shift module is mounted on the drive shaft and is used to adjust torque of the drive shaft . The automatic control module has a microprocessor and a sea sensing unit . By sensing and measuring a change in sea water wave motion, the automatic control module controls the speed shift module to adjust the torque of the drive shaft and controls operation of the generator . The system can stably generate power over long period of time, is easy to set up and repair, and has a low cost.

Description

A wave power supply system that complements wind power for continuous power generation

This creation belongs to the field related to power generation, especially a natural energy power generation system that combines wind power generation and wave power generation to improve power generation efficiency and generate electricity stably and continuously.

Wind power generation is a common natural energy system. Humans have a long history of using wind energy, and the technology is relatively mature, and the installation is relatively simple and the maintenance cost is relatively low. Therefore, regardless of the efficiency, most countries have auxiliary programs to encourage the construction of wind power generation. However, wind power generation also has disadvantages, because the wind power in nature is an unstable phenomenon that is difficult for people to grasp. When the wind power is too low, it will not be able to generate the energy to drive wind power generation, resulting in interruption of energy output; and when the wind power is too strong, in order to avoid mechanical If damaged, the wind power generation system must also be shut down so that electricity cannot be generated.

Another common natural energy system is to use wave force (wave) to generate electricity from seawater fluctuations. Wave force is a surface wave that occurs on the ocean surface, that is, a wave that travels along the interface between water and air, and belongs to gravity. A type of wave. When the wind blows, the pressure and friction brought by the wind disturb the equilibrium state of the ocean surface, and some energy is transferred from the wind to the water.

Since the ocean occupies 70% of the earth's surface and is constantly fluctuating, compared with wind power, wave power is more efficient and can generate kinetic energy often and persistently. Therefore, the technology of using seawater wave power to generate electricity has also become an object that the industry attaches great importance to.

However, wave power is a relatively new technology and requires a huge budget if it is to be built alone. Moreover, the location where the wave power generation is installed overlaps with the offshore wind power generation system. If the wind power generation system is to be rebuilt, it is obviously not in line with reality and economic considerations.

According to observations, whether it is wind or wave energy, it is energy with periodic changes. The energy period correlation coefficient between wave force and wind force is 0.8, and wave force is easier to predict than wind force. When the energy is low, there is no power generation benefit, and when the energy is too large, the power generation equipment may be damaged and energy cannot be effectively generated. Therefore, there will be a "transitional period" in which the energy cannot be utilized during the period from the start of the wind or wave energy to the stable power generation. And no matter where the sea area is, there is a time interval between the transition period of wind force and wave force. If the wind force and wave force can be complementary, it can ensure effective power generation for a long time and increase energy income. The aforementioned wind force and wave force complementarity can Refer to Figures 6 to 8 for the change diagrams of wave height, wind speed, and wind direction over time (Figures 5 to 7 are from: HOKIMOTO, Tsukasa. Prediction of wave height based on the monitoring of surface wind. Oceanography, 2012, 169-188).

For this reason, the author of the present invention considers a wave power supply device that can complement wind power, and based on the existing wind power generation system, increases wave power generation to increase electric energy output. After years of careful research, the new type of natural energy power generation system has finally been developed.

The main purpose of this new model is to provide a wave power supply system that complements wind power to continuously generate electricity. Combining wind power and wave power to increase power output and reduce idle time, it can provide long-term stable power supply and become the best natural energy. alternative plan.

Another purpose of this model is to provide a wave power supply system that complements wind power to continuously generate electricity. Combined with existing equipment, it is easy to set up, cheaper than the existing technology, easy to maintain, and can generate practical energy output. Contribute to Solve the urgent problem of existing energy.

The wave power supply system provided by this new model is complementary to wind power for continuous power generation, including a wave power kinetic energy module, which is erected on the ocean, uses the kinetic energy generated by seawater fluctuations to generate power, and incorporates the wave power generation into wind power generation equipment to achieve the purpose of continuous power generation, the wave force kinetic energy module includes a wave force acquisition module, a transmission shaft, a generator, a variable speed module, and an automatic control module; the wave force acquisition module is used to obtain seawater fluctuations The transmission shaft uses the wave force to obtain the output kinetic energy of the module to connect the transmission, the generator receives the kinetic energy of the transmission shaft and converts it into electricity, and the speed change module is installed on the transmission shaft to adjust the transmission shaft The automatic control module has a microprocessor and a walrus sensing unit, which senses fluctuations in the seawater to control the variable speed module to adjust the torque of the transmission shaft and control the action of the generator.

Further, the wave force acquisition module has a buoy, the buoy is connected with a ball screw or a rack to move up and down, and pushes the screw of the ball screw to rotate. Between the gears, there are two reverse one-way gears driven by meshing. The one-way gears are connected to the transmission shaft, and the buoy is driven to move up and down by the seawater fluctuations, and the transmission shaft is driven to continue in the same direction due to the limitation of the one-way gears. Rotate, then rotate the generator through the transmission shaft. The buoy is cylindrical, and a wing plate with a height of 1/4 of the buoy is installed around the buoy.

Further, the generator includes two coaxial generators connected in series, and each generator has a different output power. When the seawater has only slight fluctuations, the automatic control module first drives the generator with the lowest output power. , so as to exert higher power generation efficiency at low torque; When it continues to grow larger, two generators can be driven at the same time to achieve the highest power generation efficiency.

In a preferred manner, the generator is an ironless disc generator.

In a preferred manner, the output power of the two generators is 200KW and 300KW respectively.

Regarding the output power, the generator with 200KW output power starts when the wave height is lower than 1.5m; the generator with 300KW output power starts when the wave height is between 1.5m~3.0m; and when the wave height exceeds 3.0m, then Start two of these generators simultaneously.

Preferably, the speed change module is a stepless speed change machine, which has the effect of reducing the speed and increasing the torque. A torque meter is arranged on the transmission shaft, and the torque meter measures the torque of the transmission shaft, and is controlled by the automatic control module. The speed change module automatically adjusts the transmission shaft to achieve the required speed.

Further, the automatic control module is also provided with an electronic governor, which is connected to control the speed change module, and the electronic speed governor is used to stabilize the speed change module.

In a preferred manner, the walrus sensing unit is a walrus data buoy, and the data of fluctuations and fluctuations of the seawater can be obtained by observing the walrus data buoy.

In a preferred manner, the walrus sensing unit is a linear displacement sensor to record the displacement of the seawater fluctuation.

In a preferred manner, the walrus sensing unit is an ultrasonic wave height meter or a laser wave height meter, which uses ultrasonic or laser signals to obtain the displacement of the fluctuation of the seawater.

Compared with the prior art, the advantages and positive effects of the present invention are: The wave power system provided by the present invention is complementary to wind power for continuous power generation, which can supply power stably for a long time, is easy to erect, lower in cost than the prior art, easy to maintain, and can produce practical energy output, which helps to solve Existing energy urgent problems.

The preferred embodiments of this creation will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of this creation can be more easily understood by those skilled in the art, so as to make a clearer definition of the protection scope of this creation.

Please refer to Fig. 1 and Fig. 2, a wave power supply system provided by the present invention that complements wind power to continuously generate electricity, includes a wave power kinetic energy module 10, which is erected on the ocean, and uses the fluctuation of sea water 30 to generate The kinetic energy is used to generate electricity, and the wave power is incorporated into the wind power generation equipment 20 to continuously generate electricity. Therefore, the wave kinetic energy module 10 can be directly erected by using the existing wind power generation equipment 20, and the submarine cable can be shared to save land resources and civil engineering costs. 10 for post-maintenance.

The wave force kinetic energy module 10 includes a wave force acquisition module 100 , a transmission shaft 110 , a generator 120 , a speed change module 130 , and an automatic control module 140 .

The wave force acquisition module 100 is put into the seawater 30 to acquire the kinetic energy generated by the undulation of the seawater 30 .

The transmission shaft 110 utilizes the kinetic energy output of the wave force harvesting module 100 to transmit to the generator 120 for power generation.

The generator 120 receives the kinetic energy of the drive shaft 110 and converts it into electricity.

The speed change module 130 is installed on the transmission shaft 110 for adjusting the torque of the transmission shaft 110 .

The automatic control module 140 has a microprocessor 141 and a walrus sensing unit 142. By sensing the fluctuation of the seawater 30, it controls the variable speed module 130 to adjust the torque of the transmission shaft 110 and controls the generator 120. Actions.

Specifically, the wave force acquisition module 100 has a buoy 101, the buoy 101 sinks into the seawater 30, and moves up and down under the fluctuation of the seawater 30 to obtain kinetic energy; the buoy 101 is connected with a ball screw (Ballscrew ) 102, the ball screw 102 moves up and down with the buoy 101; the ball screw 102 drives a driving gear 103, and the driving gear 103 meshes with a one-way gear 104, and the one-way gear 104 limits the steering to maintain the same direction The rotation of the one-way gear 104 is connected to the transmission shaft 110; therefore, the buoy 101 moves up and down with the fluctuation of the seawater 30, and drives the ball screw 102 to move synchronously, and then is distributed to the unit via the driving gear 103. The one-way gear 104 drives the transmission shaft 110 to continuously rotate in the same direction, and then rotates the generator through the transmission shaft 110 . Since the seawater 30 fluctuates and floats regularly, the generator 120 can continuously generate electricity, and cooperate with the wind power generation equipment 20 to complement each other during the transition period, so the purpose of continuously and stably outputting usable power can be achieved.

In the aforementioned structure, the buoy 101 is cylindrical, and there is a wing plate 1011 about 1/4 of the height of the buoy 101 around the buoy 101. By combining the buoy 101 with the design of the wing plate 1011, the buoy 101 can be greatly reduced. The overall weight of the buoy 101 is about 2/3, and the wing plate 1011 can surround the water body to increase the additional weight of the buoy 101 as a whole, so as to increase the vertical displacement of the buoy 101, which can increase the power generation efficiency by about 30%~40%.

As shown in Figure la, the ball screw 102 includes a nut 1021 and a screw 1022, wherein the nut 1021 is connected to the buoy 101 through a connecting rod 1023, and the screw 1022 is connected to the driving gear 103. Therefore, the screw The cap 1021 moves on the screw rod 1022 along with the buoy 101 , and then drives the screw rod 1022 to rotate to drive the driving gear 103 to rotate.

The ball screw 102 is adopted in consideration of its stability and strong load force, so the best power generation effect can be obtained. Of course, other transmission methods are also possible. As shown in FIG. 1b, the buoy 101 is engaged with the rack 105 to drive the driving gear 103 to rotate, which can also achieve the purpose of generating electricity.

The driving gear 103 and the one-way gear 104 are driven by helical gears, so the two one-way gears 104 are arranged on both sides of the driving gear 103 in opposite directions at the same time. Any one of the one-way gears 104 transmits power, thereby increasing the transmission power.

Please refer to FIG. 4 , the generator 120 includes two generators 120 connected in series coaxially, namely a generator with an output power of 200KW and a generator with an output power of 300KW. When the wave height of the seawater 30 is lower than 1.5m and there are only slight fluctuations, the automatic control module 140 first drives the generator 120 with an output power of 200KW, which can obtain higher power generation efficiency at low torque; when the seawater When the wave height of 30 is between 1.5m~3.0m and the fluctuation becomes large, switch the generator 120 with 300KW output power to obtain higher power generation efficiency at high torque; and when the wave height of the seawater 30 exceeds 3.0m When the fluctuation continues to increase, two generators 120 with output power of 200KW and 300KW are driven at the same time, or even one generator 120 with a high output power of 500KW is used to achieve the highest power generation efficiency.

The detailed comparison diagrams are shown in Fig. 4 and Fig. 5, in which the curves show the relationship between the wave spectral density (WavespectralDensity) and the wave energy spectrum (Waveenergy spectrum) of seawater 30, that is, the relationship between wave height (WaveHeight) and frequency (Frequency) . Referring to Fig. 5, it shows the range of energy acquisition of traditional general generators. Because generators cannot be selected, this general generator can only obtain energy within a limited range of wave heights; on the contrary, as shown in Fig. 4, this new model has The generator 120 with an output power of 300KW, so when the wave height changes, the automatic control module 140 can switch an appropriate generator to generate electricity according to actual needs. Therefore, the present invention adopts the integral concept, and can obtain the maximum floating energy of the seawater 30 at different stages of wave height changes, and accumulate the maximum energy for output.

In order to adapt to the use environment, facilitate operation, and reduce maintenance times, the generator 120 is an ironless disc generator, which can reduce wear and tear and lower the failure rate. Of course, it can also be other low-speed generators.

The transmission module 130 is a stepless transmission 131, which has the effect of reducing the rotational speed and increasing the torque. The transmission shaft 110 is provided with a torque meter 143, which measures the torque of the transmission shaft 110 and transmits it to the The automatic control module 140 is used to control the speed change module 130 to automatically adjust the transmission shaft 110 to reach the desired rotational speed through the automatic control module 140 . The speed change module 130 can also be a speed increaser.

The automatic control module 140 is also provided with an electronic governor 144, which is connected to control the variable speed module 130. It can be used to stabilize the speed of the speed change module 130 .

The walrus sensing unit 142 has various types, and one or multiple settings can be set at the same time. One of them is the walrus data buoy 1421 , and the data of fluctuations and changes of the seawater 30 can be obtained by observing the walrus data buoy.

Alternatively, the walrus sensing unit 142 is a linear displacement sensor 1422 for recording the undulating displacement of the seawater 30 .

Alternatively, the walrus sensing unit 142 is an ultrasonic wave altimeter or a laser wave altimeter 1423, which uses ultrasonic or laser signals to obtain the undulating displacement of the seawater 30.

The above implementation methods are only to illustrate the technical conception and characteristics of this creation. Its purpose is to let people familiar with this technology understand the content of this creation and implement it. All equivalent changes or modifications should be covered within the scope of protection of this creation.

10: Wave power kinetic energy module 100: wave power capture module 101: buoy 1011: wing plate 102: Ball screw 1021: Nut 1022: screw 1023: Connecting rod 103: Driving gear 104: one-way gear 105: Rack 110: drive shaft 120: Generator 130: Variable speed module 131: Stepless speed changer 140: Automatic control module 141: Program control microprocessor 142:Walrus sensing unit 1421: Walrus Data Buoy 1422: Linear Displacement Sensor 1423: Ultrasonic wave height meter or laser wave height meter 143: Torque meter 144: Electronic governor 20:Wind power generation equipment 30:Sea water

Fig. 1 is the structural representation of the novel wave power kinetic energy module and wind power generation equipment; Figure 1a is a structural schematic view of the new wave force acquisition module in the form of a ball screw; Fig. 1b is a structural schematic view of the rack mode of the new wave force acquisition module; Fig. 2 is a schematic diagram of the complete structure of the new wave force kinetic energy module; Fig. 3 is the schematic diagram of the buoy structure of the present invention; Fig. 4 is the reference diagram of the generator energy acquisition range of the present invention; Figure 5 is a reference diagram of the energy acquisition range of a general generator; Figure 6 is a common diagram of wave height changes obtained over time; Fig. 7 is common wind speed change map obtained with time course; And Figure 8 is a common map of wind direction changes obtained over time.

100: wave power capture module

101: buoy

102: Ball screw

1022: screw

103: Driving gear

104: one-way gear

110: drive shaft

120: Generator

130: Variable speed module

131: Stepless speed changer

140: Automatic control module

141: Program control microprocessor

142:Walrus sensing unit

1421: Walrus Data Buoy

1422: Linear Displacement Sensor

1423: Ultrasonic wave height meter or laser wave height meter

143: Torque meter

144: Electronic governor

Claims (11)

A wave power supply system complementary to wind power for continuous power generation, including a wave power kinetic energy module, which is erected on the ocean, uses kinetic energy generated by seawater fluctuations to generate power, and integrates wave power generation into wind power generation equipment for continuous power generation; The wave force kinetic energy module includes: wave force acquisition module, which is used to obtain kinetic energy generated by seawater fluctuations; The transmission shaft uses the wave force to obtain the kinetic energy output by the module; the generator receives the kinetic energy of the transmission shaft and converts it into electricity; the speed change module is installed on the transmission shaft to adjust the torque of the transmission shaft; And the automatic control module, which has a microprocessor and a walrus sensing unit, controls the variable speed module to adjust the torque of the transmission shaft and control the action of the generator by sensing the fluctuation of seawater fluctuations. The wave power supply system complementary to wind power for continuous power generation as described in claim 1, wherein the wave power acquisition module has a buoy, the buoy is connected to a ball screw or a rack, the ball screw drives a driving gear, and the driving gear engages Drive the one-way gear, the one-way gear is connected to the transmission shaft, use the seawater fluctuation to drive the buoy to move up and down, and drive the transmission shaft to continue to rotate in the same direction under the limitation of the one-way gear, and then use the rotation of the transmission shaft drive the generator. According to claim 2, the wave power supply system complementary to wind power for continuous power generation, wherein, the buoy is cylindrical, and a wing plate with a height of 1/4 of the buoy is installed around the buoy. As described in Claim 1, the wave power supply system complementary to wind power for continuous power generation, wherein, the generator includes two coaxial generators connected in series, and each generator has a different output power. When the seawater has only When there is a slight fluctuation, the automatic control module first drives the generator with low output power to obtain higher power generation efficiency at low torque; when the fluctuation of the seawater becomes larger, it switches to the generator with high output power. motor to obtain higher power generation efficiency when the torque is large; and when the seawater fluctuation continues to increase, drive two of the generators at the same time to achieve the highest power generation efficiency. The wave power supply system for continuous power generation complementary to wind power as described in Claim 4, wherein the generator is an ironless disc generator. As described in Claim 4, the wave power supply system complementary to wind power for continuous power generation, wherein the two generators are respectively a generator with an output power of 200KW and a generator with an output power of 300KW, and the generator with an output power of 200KW is in It starts when the wave height is lower than 1.5m; the generator with 300KW output power starts when the wave height is between 1.5m~3.0m; and when the wave height exceeds 3.0m, two generators are started at the same time. The wave power supply system complementary to wind power for continuous power generation as described in claim 1, wherein, the speed change module is a speed increaser or a stepless speed changer, and a torque meter is arranged on the transmission shaft, and the torque meter measures the transmission The torque of the shaft is transmitted to the automatic control module, and the transmission module is controlled by the automatic control module to automatically adjust the transmission shaft to reach the required speed. As described in Claim 7, the wave power supply system complementary to wind power for continuous power generation, wherein, the automatic control module is also provided with an electronic speed governor, and the electronic speed governor is connected to control the variable speed module, and the electronic speed regulation The device is used to stabilize the speed of the transmission module. The wave power supply system complementary to wind power for continuous power generation as described in Claim 1, wherein the walrus sensing unit is a walrus data buoy, and the seawater fluctuation and fluctuation data are obtained through the walrus data buoy. The wave power supply system complementary to wind power for continuous power generation as described in Claim 1, wherein the walrus sensing unit is a linear displacement sensor for recording the displacement of the seawater fluctuation. As described in claim 1, the wave power supply system complementary to wind power for continuous power generation, wherein the walrus sensing unit is an ultrasonic wave altimeter or a laser wave altimeter, which uses ultrasonic or laser signals to obtain the fluctuation of the seawater displacement.

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