CN211457062U - Wind-solar hybrid power supply system - Google Patents
Wind-solar hybrid power supply system Download PDFInfo
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- CN211457062U CN211457062U CN201922435047.1U CN201922435047U CN211457062U CN 211457062 U CN211457062 U CN 211457062U CN 201922435047 U CN201922435047 U CN 201922435047U CN 211457062 U CN211457062 U CN 211457062U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The utility model relates to a wind-solar hybrid power supply system, which comprises a wind driven generator and a solar battery component, wherein the input end of the wind driven generator is provided with a DC/DC converter, and the output end of the DC/DC converter is provided with a load; the solar cell module comprises a solar cell panel, four photosensitive sensors, a signal collector and a driving motor; the four photosensitive sensors are arranged on the solar cell panel, and the output ends of the four photosensitive sensors are connected with the input end of the signal collector; the driving motor can control the solar cell panel to rotate. The utility model completes the regulation of the electric power of the wind driven generator through the regulating equipment, and indirectly controls the rotating speed of the wind driven generator; 6 solar cell panels are fixed through the connecting support, the driving motor is used for controlling the solar cell panels to rotate, the effective illumination time is prolonged, and the connecting support can also increase the stabilizing effect of the solar cell panels.
Description
Technical Field
The utility model belongs to power supply mechanical equipment field, in particular to complementary power supply system of scene.
Background
Wind energy and solar energy are taken as energy representatives of diversified and social sustainable development, are accepted by society, have natural matching complementarity, and are more efficient and stable than a single power generation mode due to the complementation of the wind energy and the solar energy. The existing wind-solar hybrid system is composed of a solar cell module, a wind driven generator, a controller, an inverter, a rectifier, load equipment and other loads of all parts. The system is schematically shown in FIG. 1.
The main disadvantages of the traditional wind-solar hybrid system are as follows:
1. the wind generator is used as an input to convert wind energy into electrical energy. Under the influence of wind speed and wind direction, the traditional wind driven generator has poor self-regulation capability along with the change of the wind speed and the wind direction, and the output power and the conversion efficiency under different wind speeds and wind directions change greatly.
2. Solar modules are used as input to convert solar energy into electrical energy. The traditional solar cell panel is fixed in one direction and receives illumination, when the direction of the light changes, the conversion efficiency is sharply reduced, and under the influence of illumination intensity and angle, the output power and the conversion efficiency change greatly.
Therefore, a system is needed to adjust the rotation speed of the wind power generator and adjust the direction of the solar panel, so as to increase the power supply effect of the wind-solar hybrid power supply system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model relates to a wind-solar hybrid power supply system, which comprises a wind driven generator and a solar battery component,
the input end of the wind driven generator is provided with a DC/DC converter, and the output end of the DC/DC converter is provided with a load;
the output end of the wind driven generator is connected with a regulating device, and the output end of the regulating device is connected with the input end of the DC/DC converter;
the solar cell module comprises a solar cell panel, four photosensitive sensors, a signal collector and a driving motor;
the four photosensitive sensors are arranged on the solar cell panel, and the output ends of the four photosensitive sensors are connected with the input end of the signal collector;
the driving motor can control the solar cell panel to rotate.
Preferably, the output end of the signal collector is provided with a control circuit, the output end of the control circuit is connected with the driving motor, and the output end of the driving motor is provided with a driver.
Preferably, the driving motor comprises an X-axis motor and a Y-axis motor, and the output end of the X-axis motor and the output end of the Y-axis motor are both connected with the solar panel.
Preferably, the control circuit controls the driving motor through the driver.
Preferably, the photosensitive sensor is set as a photosensitive triode, a collector of the photosensitive triode is connected with the solar panel, and an emission set of the photosensitive triode is connected with the signal collector.
Preferably, the solar cell panel is a rectangular block, and the surface of the solar cell panel is flat;
the four photosensitive sensors are respectively arranged at four corners of the solar cell panel and are positioned in the same plane.
Preferably, a connecting piece is arranged in the center of the bottom surface of the solar cell panel and connected with a connecting bracket;
the solar cell panel is fixed on the connecting bracket through the connecting piece.
The technical advantages of the utility model: the wind-solar hybrid power generation system solves the problem of operation of the wind-solar hybrid power generation system, and the electric power of the wind driven generator is adjusted through the adjusting equipment to indirectly control the rotating speed of the wind driven generator. Fix 6 solar cell panel through linking bridge, use driving motor to control linking bridge, linking bridge drives solar cell panel and rotates, has improved effective illumination time, and linking bridge also can increase solar cell panel's stable effect, avoids solar cell panel to receive environmental impact, is energy-concerving and environment-protective a concrete practice and uses.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a conventional wind-solar hybrid system;
FIG. 2 is a schematic structural diagram of a wind-solar hybrid system according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a wind-solar hybrid system according to an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a solar panel installation position according to an embodiment of the present invention;
in the figure: 1-solar panel, 2-connecting piece and 3-connecting bracket.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 shows a schematic mechanism diagram of a conventional wind-solar hybrid system. As shown in fig. 1, the prior art of the present invention includes a wind-solar hybrid power supply system, wherein the wind-solar hybrid power supply system is composed of a solar battery module, a wind power generator, a controller, an inverter, a rectifier, and a load device. The output ends of the wind driven generator and the solar cell module are connected with the input end of the controller, the output end of the controller is connected with the input end of the LED lamp, and the output end of the controller is also connected with the input end of the storage battery. The output end of the storage battery is connected with the input end of the inverter, and the output end of the inverter is connected with the water pump.
The controller converts alternating current generated by the wind driven generator and direct current generated by the solar battery component into direct current which can be directly used by load equipment. Therefore, the direct current output by the controller can enable the LED lamp to emit light and can also charge the storage battery. The direct current generated by the solar cell module is different in size along with different sunlight illumination intensities, so that the direct current generated by the solar cell module cannot be directly used for supplying power to load equipment.
As the input of the wind-solar hybrid system, the wind driven generator and the solar cell module occupy the core position of the whole system. Under the conditions of wind and fine days in the daytime, the wind and the fine days work together to provide electric energy consumed by the load and charge the storage battery at the same time; on a cloudy day, the solar cell panel 1 stops working, and the wind driven generator and the storage battery jointly provide power for the load; in windless and sunny days, the wind driven generator stops working, and the solar cell panel 1 and the storage battery jointly provide power for the load. The storage battery and the wind driven generator are used as main power supplies of the load at night, the storage battery and the wind driven generator provide power supplies for the load together at the windless night, and the storage battery provides power supplies for the load at the windless night.
When the load is powered, the stable direct current converted by the controller is used for supplying power to the storage battery, and meanwhile, the direct current generated by the storage battery is converted by the inverter, so that the water pump can use the alternating current converted by the inverter. The generated energy of the wind driven generator changes due to the change of the air volume, alternating current with the change of 13-25V is output, and the alternating current is rectified by the controller and then charges the storage battery, so that the electric energy generated by the wind driven generator is changed into chemical energy. Then, the chemical energy of the storage battery is converted into alternating current 220V mains supply through an inverter of the protection circuit, and a stable power supply requirement is provided for the water pump.
Compared with the prior art, fig. 2 shows a schematic mechanism diagram of a wind turbine according to an embodiment of the present invention. As shown in fig. 2, the wind-solar hybrid system includes a wind power generator and a solar cell module, wherein a DC/DC converter is disposed at an input end of the wind power generator, and a load is disposed at an output end of the DC/DC converter.
The generated power of the wind driven generator is adjusted, so that the wind driven generator can capture the maximum wind energy when the wind speed is low, and can also limit the speed when the wind speed is high. The power generation process of the wind driven generator is as follows: wind energy is converted into mechanical work, the mechanical work drives the rotor to rotate, and direct current is finally output. When the mechanical power input by the wind driven generator is smaller than the output electric power, the rotating speed of the wind driven generator is reduced; conversely, the rotational speed of the wind turbine is increased.
For example, when the mechanical power of the wind driven generator is smaller than the output electric power of the wind driven generator, the mechanical output of the wind driven generator is negative, and the mechanical power of the wind driven generator does not work, and the rotating speed of the wind driven generator is reduced. Similarly, when the mechanical power of the wind driven generator is greater than the output electric power of the wind driven generator, the mechanical output of the wind driven generator is positive power, the generated electric energy can be stored in the storage battery, the mechanical power of the wind driven generator does work, and the rotating speed of the wind driven generator needs to be increased at the moment.
When the wind driven generator is tested, the vertical axis wind driven generator is adopted, and the parameters are shown in table 1:
TABLE 1 parameters of vertical axis wind turbine
As shown in table 1, various parameters of the tested wind turbine are obtained, so that various comparisons can be performed on the tested wind turbine, for example, the mechanical power of the tested wind turbine can be measured at different wind speeds.
The output end of the wind driven generator is connected with a regulating device, and the output end of the regulating device is connected with the input end of the DC/DC converter. The regulating equipment is used for controlling the output power of the wind driven generator by regulating the duty ratio of the circuit driving signal through a maximum power given method. And further, the regulation of the electric power is completed, and the aim of controlling the rotating speed of the wind driven generator is indirectly achieved.
In fig. 2, the rotation speed of the wind turbine is measured, the optimum wind speed is estimated from the rotation speed, and the maximum output power P of the wind turbine is obtained from the correspondence between the wind speed and the maximum output power of the wind turbine1Actual power of the whole system is P2In which P is1＝Ww，P2＝UwIw. Comparison P1And P2The magnitude of the voltage difference is adjusted by using a PID (Proportion integration differential) control algorithm to generate PWM (pulse width modulation) to adjust the DC/DC converter, so that the duty ratio of a signal is changed, and the output power of the wind driven generator is further controlled.
Comparing the output power of the wind driven generator controlled by the maximum power given method with the output power of the prior art, wherein the comparison result is as follows:
TABLE 2 aerogenerator test data comparison
Wind speed change among the natural environment can directly influence aerogenerator's output to measured in the experiment respectively the utility model discloses the control scheme and the original 2 aerogenerator of experiment platform output power value under different wind speed conditions to compare the two under the same wind speed condition. The voltage and current values output by the wind driven generator in the wind speed range of 2m/s to 8m/s are measured and recorded in the field, the output power value is obtained through calculation, and then 8 groups of data are selected and summarized into a table. As shown in table 2, it is seen from table 2 that, as the wind speed changes, the output power value of the wind driven generator is obviously higher than that of the wind driven generator in the original control method by the maximum power setting control method, so that the maximum power setting control method has higher power and realizes more efficient operation.
The utility model discloses still include the electricity generation of solar module, the realization is as follows:
fig. 3 shows a schematic perspective view of a solar cell module according to an embodiment of the present invention. As shown in fig. 3, the solar cell module includes a solar cell panel 1, four light sensors and a signal collector; four the light sensitive sensors are evenly arranged at four corners of the solar cell panel 1, and four light sensitive sensor output ends are connected with the input end of the signal collector.
The light-sensitive sensor can be set as a phototriode, four phototriodes are respectively installed at four corners of the solar cell panel 1, and the illumination condition of the whole panel of the solar cell panel 1 can be transmitted in real time through the phototriode. The light sensitive triode is only used as a device for feeding back the illumination intensity, and is not limited to the light sensitive triode, such as a photoelectric sensor.
In fig. 3, the emission set of the phototriode is connected to the signal collector, and the collector of the phototriode is connected to the surface of the solar panel 1. When no light is irradiated, the phototriode is in a cut-off state, and no electric signal is output. When the light signal irradiates the base electrode of the phototriode, the phototriode is conducted, firstly, the photoelectric conversion is realized through the base electrode, then, the amplification of the photocurrent is realized through the phototriode, and the amplified electric signal is output from the emitter to the signal collector.
The signal collector collects the illumination data on the surface of the solar cell panel 1 through the phototriode, the signal collector transmits the illumination data to the control circuit, and the control circuit is controlled through the driver, so that the angle of the solar cell panel 1 is adjusted by utilizing the X-axis motor and the Y-axis motor of the driving motor.
Fig. 4 shows the utility model discloses solar cell panel mounted position schematic diagram, as shown in fig. 4, place 6 solar cell panel 1 around 360 circles, with the equal erection joint spare 2 in bottom surface center of every solar cell panel 1, fix connecting piece 2 on linking bridge 3, accomplish the fixed to solar cell panel 1. On this basis, install four photo sensor respectively in four corners of solar cell panel 1, pass through gear connection with driving motor's output and linking bridge 3's bottom focus position, X axle motor adjustment linking bridge 3's X axle direction, Y axle motor adjustment linking bridge 3's Y axle direction, according to the signal of photo sensor transmission, driving motor can adjust linking bridge 3's angle, and then can let solar cell panel 1 correspond the sun and shine the direction, and then reduce the collision interference of solar cell panel 1 to the surrounding environment. Forming a closed loop system.
The solar cell panel 1 is a rectangular block, and the surface of the solar cell panel 1 is flat;
the four photosensitive sensors are respectively arranged at four corners of the solar cell panel 1, and the four photosensitive sensors are positioned in the same plane.
Six solar cell panels 1 are used as a group, and one solar cell panel 1 is arranged on the connecting support 3 in six directions. When increasing the illumination scope is received to solar cell panel 1, can remove a set of solar cell panel 1 through linking bridge 3, avoid removing solar cell panel 1 alone, labour saving and time saving. The overall weight of the connecting bracket 3 and the solar panel 1 is increased, and the condition that the solar panel 1 deviates due to environmental factors is avoided.
Smooth solar cell panel 1 can guarantee that the face bears even illumination, and four light sensor increase all sensitization effects of whole face, and signal collector can receive unified photoelectric signal in real time, and then control driving motor's X axle motor and Y axle motor adjust solar cell panel 1's inclination.
The photosensitive sensor feeds back a detection signal to a light source follow-up control system, namely a closed-loop system. The light source follow-up control system controls an X-axis motor and a Y-axis motor of the driving motor to work, and controls the elevation angle and the azimuth angle of the solar cell panel 1, so that light source follow-up tracking is realized, the sunlight contact surface of the solar cell panel 1 is maximized, and the incidence angle is optimal. The X-axis motor and the Y-axis motor are set as stepping motors, and the stepping motors control the solar panel 1 to synchronously rotate along with the position of the sun, so that the solar panel 1 always receives the strongest solar radiation. When the sun is in a mountain or in rainy days, the solar panel 1 returns to the position, so that the solar panel 1 returns to the default orientation when being installed, and electric energy is supplied to the load mainly through the wind driven generator and the storage battery.
A group of solar panels 1 was measured in the field using single crystalline silicon solar panels with higher conversion efficiency, and the measurement results are as follows:
table 3 comparison of measured data of solar panel 1
As shown in table 3, after the light source follow-up control system is adopted, the output power value of the solar panel 1 is obviously higher than that of the solar module in the original control method along with the illumination change of the sun, and the output power of the solar panel 1 is the highest at 14:00 pm. Moreover, the power generation efficiency of the solar cell panel 1 is completely higher than the power generated by the solar energy controlled by the prior art.
The utility model discloses the problem of complementary power generation system of scene in the middle of the operation has been improved, the system stability subalternation problem that the easy influence, the regulating power of receiving the wind speed wind direction that appear including aerogenerator are poor, the low and solar module rate of illumination is low and above reason leads to. The control method has the advantages that some key electrical elements are effectively controlled, the light source follow-up and power control are adopted, the effective illumination time and the fan power are improved, the stability of the system is improved, the working procedures are simplified, the cost is reduced, and the control method is a specific practical application of energy conservation and environmental protection.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. A wind-solar hybrid power supply system comprises a wind driven generator and a solar battery component, and is characterized in that,
the input end of the wind driven generator is provided with a DC/DC converter, and the output end of the DC/DC converter is provided with a load;
the output end of the wind driven generator is connected with a regulating device, and the output end of the regulating device is connected with the input end of the DC/DC converter;
the solar cell module comprises a solar cell panel (1), four photosensitive sensors, a signal collector and a driving motor;
the four photosensitive sensors are arranged on the solar cell panel (1), and the output ends of the four photosensitive sensors are connected with the input end of the signal collector;
the driving motor can control the solar cell panel (1) to rotate.
2. The wind-solar hybrid power supply system according to claim 1,
the output end of the signal collector is provided with a control circuit, the output end of the control circuit is connected with the driving motor, and the output end of the driving motor is provided with a driver.
3. The wind-solar hybrid power supply system according to claim 2,
the driving motor comprises an X-axis motor and a Y-axis motor, and the output end of the X-axis motor and the output end of the Y-axis motor are both connected with the solar cell panel (1).
4. The wind-solar hybrid power supply system according to claim 3, wherein the control circuit controls the drive motor through the driver.
5. The wind-solar hybrid power supply system according to any one of claims 1 to 4,
the photosensitive sensor is set to be a photosensitive triode, a collector electrode of the photosensitive triode is connected with the solar cell panel (1), and an emission set of the photosensitive triode is connected with the signal collector.
6. The wind-solar hybrid power supply system according to claim 5,
the solar cell panel (1) is a rectangular block, and the surface of the solar cell panel (1) is flat;
the four photosensitive sensors are respectively arranged at four corners of the solar cell panel (1), and are positioned in the same plane.
7. The wind-solar hybrid power supply system according to claim 6,
a connecting piece (2) is arranged in the center of the bottom surface of the solar cell panel (1), and the connecting piece (2) is connected with a connecting bracket (3);
the solar cell panel (1) is fixed on the connecting support (3) through the connecting piece (2).
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| CN201922435047.1U CN211457062U (en) | 2019-12-30 | 2019-12-30 | Wind-solar hybrid power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028344A (en) * | 2021-03-01 | 2021-06-25 | 宁波亿鑫诚电器有限公司 | Solar lamp for festival series |
| CN115117944A (en) * | 2022-08-25 | 2022-09-27 | 华能山西综合能源有限责任公司 | Power control method for wind power and photovoltaic combined power generation |
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2019
- 2019-12-30 CN CN201922435047.1U patent/CN211457062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028344A (en) * | 2021-03-01 | 2021-06-25 | 宁波亿鑫诚电器有限公司 | Solar lamp for festival series |
| CN115117944A (en) * | 2022-08-25 | 2022-09-27 | 华能山西综合能源有限责任公司 | Power control method for wind power and photovoltaic combined power generation |
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