CN113113932A - Voltage regulating device of photovoltaic power generation equipment - Google Patents
Voltage regulating device of photovoltaic power generation equipment Download PDFInfo
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- CN113113932A CN113113932A CN202110504835.0A CN202110504835A CN113113932A CN 113113932 A CN113113932 A CN 113113932A CN 202110504835 A CN202110504835 A CN 202110504835A CN 113113932 A CN113113932 A CN 113113932A
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- 238000010248 power generation Methods 0.000 title claims abstract description 49
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 34
- 238000010926 purge Methods 0.000 claims description 16
- 239000007921 spray Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/10—Cleaning arrangements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses a voltage regulating device of photovoltaic power generation equipment, which comprises: the solar energy battery board, the photovoltaic controller connected with the solar energy battery board, the photovoltaic inverter electrically connected with the photovoltaic controller, the photovoltaic inverter is used for connecting the AC load; the voltage regulation device further includes: the output voltage monitoring chip set is electrically connected with the photovoltaic inverter; the curtain driving motor is electrically connected with the output voltage monitoring chipset and the photovoltaic inverter respectively; a battery panel curtain structure connected with the curtain driving motor; wherein, the solar cell panel curtain structure covers the solar cell panel. The technical scheme of the invention can solve the problems that the photovoltaic power generation equipment in the prior art is overhigh in power generation, easily causes overhigh voltage of a power system and is unqualified in voltage quality.
Description
Technical Field
The invention relates to the technical field of photovoltaic power generation, in particular to a voltage adjusting device of photovoltaic power generation equipment.
Background
A photovoltaic power generation device is a device that generates power using a solar cell, and a solar cell is a device that converts solar energy into electric energy using the photovoltaic effect of a semiconductor material.
The principle of the photovoltaic effect is as follows: when light impinges on the solar cell and light is admitted at the interface layer, photons of sufficient energy in the semiconductor material of the solar cell can excite electrons from covalent bonds in the P-type silicon and N-type silicon, resulting in the generation of electron-hole pairs. Electrons and holes adjacent to the interface layer will be separated from each other by the electric field of space charge before they recombine. Electrons move to the positively charged N-region and holes move to the negatively charged P-region. The charge via the interface layer will create a testable voltage outward between the P and N regions, respectively. The more electron-hole pairs are generated at the interface layer via illumination, the greater the current. The more light energy the interface layer receives, the larger the interface layer, i.e., the cell area, and the larger the current formed in the solar cell.
In the prior art, as manufacturers of photovoltaic power generation equipment and power generation customers have multiple power generation requirements, the power generation voltage of a photovoltaic inverter is generally modulated to be higher, so that even if a solar cell panel works normally, the power generation voltage of the photovoltaic inverter is easily too high in clear weather, especially in high temperature in summer, the voltage of a power system is ultrahigh, the voltage quality is unqualified, and the operation safety of power grid equipment is damaged.
Disclosure of Invention
The invention provides a voltage regulating device of photovoltaic power generation equipment, and aims to solve the problems that in the prior art, the power generation of the photovoltaic power generation equipment is too high, so that the voltage of a power system is too high, and the voltage quality is not qualified.
The invention provides a voltage regulating device of photovoltaic power generation equipment, which comprises:
the solar energy battery board, the photovoltaic controller connected with the solar energy battery board, the photovoltaic inverter electrically connected with the photovoltaic controller, the photovoltaic inverter is used for connecting the AC load;
the voltage regulation device further includes:
the output voltage monitoring chip set is electrically connected with the photovoltaic inverter;
the curtain driving motor is electrically connected with the output voltage monitoring chipset and the photovoltaic inverter respectively;
a battery panel curtain structure connected with the curtain driving motor;
wherein, the solar cell panel curtain structure covers the solar cell panel.
Preferably, in the voltage regulator of photovoltaic power generation equipment, the output voltage monitoring chip set includes:
a voltage sensor electrically connected to the photovoltaic inverter;
a first voltage comparator electrically connected to the voltage sensor;
a driving signal generator electrically connected to the first voltage comparator;
wherein, the driving signal generator is also electrically connected with the curtain driving motor.
Preferably, in the voltage regulator of photovoltaic power generation equipment, the panel curtain structure includes:
a drive chain loop connected to the curtain drive motor;
cup joint in the driving chain return circuit, and set up in the curtain drive shaft of solar cell panel lateral wall, wherein, the curtain drive shaft cup joints the panel curtain.
Preferably, the voltage regulation device of the photovoltaic power generation apparatus further includes a circuit breaker connected to a line between the photovoltaic controller and the photovoltaic inverter, and the circuit breaker includes:
overcurrent release and low-voltage release;
the latch hook connecting rod corresponds to the positions of the overcurrent release and the low-voltage release;
the latch hook structure is fixedly connected with the latch hook connecting rod;
a line connection contact connected to the latch hook structure.
Preferably, the voltage regulator of the photovoltaic power generation apparatus further includes:
and the storage battery is electrically connected with the photovoltaic controller.
Preferably, the voltage regulating device of the photovoltaic power generation equipment further includes a panel purging device, and the panel purging device includes:
the timing purging control chip is electrically connected with the photovoltaic inverter;
and the blowers are electrically connected with the timing purging control chip and are respectively arranged on two sides of the solar cell panel.
Preferably, the voltage regulation device of the photovoltaic power generation equipment further comprises a panel spraying device, and the panel spraying device comprises:
the spray head control switch is electrically connected with the output voltage monitoring chip set;
and the battery panel sprayer is electrically connected with the sprayer control switch.
Preferably, the voltage regulator of photovoltaic power generation equipment further includes:
the reactive power compensation device is electrically connected with the photovoltaic inverter; the reactive power compensation device is used for collecting a plurality of voltage and current signals of the photovoltaic controller within a preset time length, calculating a corresponding target power factor and controlling the photovoltaic inverter to operate according to the target power factor.
The application provides a photovoltaic power generation equipment's voltage regulation apparatus, theory of operation as follows:
and monitoring the generating voltage of the photovoltaic inverter through an output voltage monitoring chipset electrically connected with the photovoltaic inverter. When the output voltage monitoring chipset monitors that the generated voltage output by the photovoltaic inverter is overhigh, the output voltage monitoring chipset can send a driving signal to the curtain driving motor, and the curtain driving motor drives the solar panel curtain structure to rotate in the forward direction under the electric energy output of the photovoltaic inverter, so that the solar panel is covered by the solar panel curtain structure; when the output voltage monitoring chipset monitors that the generated voltage output by the photovoltaic inverter is too low, the output voltage monitoring chipset sends a driving signal to the curtain driving motor, and the curtain driving motor drives the cell panel curtain structure to rotate reversely under the inching output of the photovoltaic inverter, so that the cell panel curtain structure covering the solar cell panel is contracted, and the solar cell panel is not covered any more.
According to the working mode, the voltage adjusting device of the photovoltaic power generation equipment can solve the problems that when the voltage adjusting device of the photovoltaic power generation equipment is at a high temperature, the generated voltage of the photovoltaic inverter is too high, the voltage of a power system is ultrahigh, the voltage quality is unqualified, and the power grid equipment is damaged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a voltage regulating device of a photovoltaic power generation apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a structure of a panel curtain provided in the embodiment shown in fig. 1;
fig. 3 is a schematic structural diagram of a circuit breaker provided in the embodiment shown in fig. 1;
FIG. 4 is a schematic diagram of an output voltage monitoring chipset provided in the embodiment of FIG. 1;
fig. 5 is a schematic structural diagram of a reactive power compensation device according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
| Reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
2 | |
| 3 | |
4 | AC load |
| 5 | Output voltage |
6 | Curtain |
| 7 | Cell |
8 | Circuit breaker |
| 9 | |
10 | Cell panel purging device |
| 11 | Battery |
12 | Reactive |
| 501 | |
502 | |
| 503 | |
701 | |
| 702 | Curtain |
801 | |
| 802 | Low- |
803 | Latch |
| 804 | Latch |
805 | |
| 101 | Timing |
102 | |
| 1101 | Control switch for |
1102 | Battery panel spray head |
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be 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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; "connected" may be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The main technical problems of the embodiment of the invention are as follows:
in the prior art, manufacturers and power generation customers of photovoltaic power generation equipment have multiple power generation requirements, so that the power generation voltage of a photovoltaic inverter is generally modulated to be higher, and even if a solar cell panel works normally, the power generation voltage of the photovoltaic inverter is easily too high in clear weather, especially in high temperature in summer, so that the voltage of a power system is ultrahigh, the voltage quality is unqualified, and the operation safety of power grid equipment is damaged.
In order to solve the above problem, referring to fig. 1, fig. 1 provides a voltage regulating device of a photovoltaic power generation apparatus for a first invention provided by an embodiment of the invention, including:
the solar photovoltaic system comprises a solar cell panel 1, a photovoltaic controller 2 connected with the solar cell panel 1, and a photovoltaic inverter 3 electrically connected with the photovoltaic controller 2, wherein the photovoltaic inverter 3 is used for being connected with an alternating current load 4. The solar cell panel 1 can convert solar energy into direct current electric energy through a photovoltaic effect, convert the direct current into alternating current through the photovoltaic inverter 3 without requiring the control of the photovoltaic controller 2, and then supply power to each alternating current load 4 through each circuit connected to the alternating current load 4.
Wherein, voltage regulation apparatus still includes:
an output voltage monitoring chipset 5 electrically connected to the photovoltaic inverter 3; the output voltage monitoring chipset 5 is capable of monitoring the voltage of the ac power output by the photovoltaic inverter 3 and outputting a control signal when the ac voltage output by the photovoltaic inverter 3 is too high.
The curtain driving motor 6 is respectively and electrically connected with the output voltage monitoring chip set 5 and the photovoltaic inverter 3; the curtain driving motor 6 is electrically connected with the photovoltaic inverter 3 and powered by the solar cell panel 1, and the curtain driving motor 6 is electrically connected with the output voltage monitoring chip set 5 and can receive a control signal of the output voltage monitoring chip to drive the curtain to move.
A battery panel curtain structure 7 connected to the curtain drive motor 6;
wherein, the solar panel curtain structure 7 covers the solar panel 1. The panel curtain structure 7 can be adjusted up and down under the control of the curtain driving motor 6, thereby covering or exposing the solar panel 1.
The voltage regulating device of the photovoltaic power generation equipment provided by the embodiment of the application monitors the power generation voltage of the photovoltaic inverter 3 through the output voltage monitoring chip set 5 electrically connected with the photovoltaic inverter 3. When the output voltage monitoring chipset 5 monitors that the generated voltage output by the photovoltaic inverter 3 is too high, a driving signal can be sent to the curtain driving motor 6, and the curtain driving motor 6 drives the cell panel curtain structure 7 to rotate forward under the electric energy output of the photovoltaic inverter 3, so that the cell panel curtain structure 7 covers the solar cell panel 1; when output voltage monitoring chipset 5 monitors that the generated voltage output by photovoltaic inverter 3 is too low, output voltage monitoring chipset 5 sends a driving signal to curtain driving motor 6, and curtain driving motor 6 drives battery panel curtain structure 7 to rotate reversely under the inching output of photovoltaic inverter 3, so that battery panel curtain structure 7 covering solar panel 1 contracts, and solar panel 1 is not covered any more.
As a preferred embodiment, as shown in fig. 4, in the voltage regulating device of the photovoltaic power generation apparatus, the output voltage monitoring chip set 5 includes:
a voltage sensor 501 electrically connected to the photovoltaic inverter 3;
a first voltage comparator 502 electrically connected to the voltage sensor 501;
a driving signal generator 503 electrically connected to the first voltage comparator 502;
the driving signal generator 503 is also electrically connected to the curtain driving motor 6.
The voltage sensor 501 is electrically connected to the pv inverter 3, can sense the generated voltage output by the pv inverter 3, and output the sensed generated voltage to the first voltage comparator 502, compare the generated voltage with a preset voltage threshold by the first voltage comparator 502, when the generated voltage is higher than the preset voltage threshold, the first voltage comparator 502 sends a control signal to the driving signal generator 503, so that the driving signal generator 503 sends a driving signal to the curtain driving motor 6, so that the curtain driving motor 6 operates to drive the panel curtain structure 7 to move.
As a preferred embodiment, as shown in fig. 2, in the voltage regulator of the photovoltaic power generation apparatus, the panel curtain structure 7 includes:
a drive chain loop 701 connected to the curtain drive motor 6;
the curtain driving shaft 702 is sleeved on the transmission chain loop 701 and arranged on the side wall of the solar cell panel 1, wherein the curtain driving shaft 702 is sleeved with the cell panel curtain.
In the technical scheme that this application embodiment provided, panel curtain structure 7 includes the drive chain circuit 701 that links to each other with curtain driving motor 6, and under curtain driving motor 6's drive, drive chain circuit 701 drives and sets up in the curtain drive shaft 702 rotation of 1 lateral wall of solar cell panel, and then makes the panel curtain motion of cup jointing at curtain drive shaft 702. For example, when the electric energy output by the photovoltaic inverter 3 is too high, the curtain driving motor 6 rotates forward to drive the transmission chain loop 701 to rotate, so that the curtain driving shaft 702 rotates forward to release the panel curtain, and the panel curtain covers the solar panel 1. Wherein, output voltage monitoring chip group 5 can be according to the generated voltage size of photovoltaic inverter 3 output, the range of spreading of control panel curtain.
As a preferred embodiment, as shown in fig. 3, the voltage regulating device of the photovoltaic power generation apparatus further includes a circuit breaker 8 connected to a line between the photovoltaic controller 2 and the photovoltaic inverter 3, and the circuit breaker 8 includes:
latch hook linkage 803 corresponding in position to overcurrent release 801 and low voltage release 802;
a latch hook structure 804 fixedly connected to the latch hook link 803;
a line connection contact 805 connected to the latch hook structure 804.
According to the technical scheme provided by the embodiment of the application, the circuit breaker 8 is arranged on the line between the photovoltaic controller 2 and the photovoltaic inverter 3, the circuit breaker 8 comprises the overcurrent release 801 and the low-voltage release 802, the circuit breaker 8 comprises the lock hook connecting rod 803, when the circuit on the line is overloaded, the overcurrent release 801 is released, the lock hook structure 804 is disconnected through the lock hook connecting rod 803, and therefore the lock hook structure 804 drives the line connecting contact 805 to move.
As a preferred embodiment, as shown in fig. 1, the voltage regulation device of the photovoltaic power generation apparatus further includes: and the storage battery 9 is electrically connected with the photovoltaic controller 2. Through setting up 9 groups of battery that are connected with photovoltaic controller 2 electricity, can save the electric energy that solar cell panel 1 received to export photovoltaic inverter 3 through photovoltaic controller 2, and then export to alternating current load 4.
As a preferred embodiment, as shown in fig. 2, the voltage regulating device of the photovoltaic power generation equipment further includes a panel purging device 10, and the panel purging device 10 includes:
a timing purge control chip 101 electrically connected to the photovoltaic inverter 3;
and a plurality of blowers 102 electrically connected to the timing purge control chip 101 and respectively disposed on both sides of the solar cell panel 1.
The timing purging control chip 101 is electrically connected with the photovoltaic inverter 3, electric energy can be passed through the photovoltaic inverter 3, the output voltage of the photovoltaic inverter 3 can be monitored, the timing purging control chip 101 is connected with the plurality of blowers 102, and the solar cell panel 1 can be purged through the blowers 102, so that the purpose of cleaning the solar cell panel 1 is achieved.
As a preferred embodiment, as shown in fig. 1, the voltage regulating device of the photovoltaic power generation apparatus further includes a panel spraying device 11, where the panel spraying device 11 includes:
a head control switch 1101 electrically connected to the output voltage monitoring chipset 5; and a panel showerhead 1102 electrically connected to the showerhead control switch 1101.
Shower nozzle control switch 1101 is connected with output voltage monitoring chipset 5 electricity, and output voltage monitoring chipset 5 can control panel shower nozzle 1102 to spray to solar cell panel 1 through shower nozzle control switch 1101 when monitoring voltage too high to play clean and cooling effect to solar cell panel 1. Wherein the solar panel 1 is typically covered with transparent glass, so that the use of the panel shower 1102 does not affect the operation of the solar panel 1.
As a preferred embodiment, as shown in fig. 5, the voltage regulator of the photovoltaic power generation apparatus further includes:
a reactive power compensation device 12 electrically connected to the photovoltaic inverter 3; the reactive compensation device 12 is configured to collect a plurality of voltage and current signals of the photovoltaic controller 2 within a predetermined time period, calculate a corresponding target power factor, and control the operation of the photovoltaic inverter 3 according to the target power factor.
Through setting up the wushu balance control device who is connected with photovoltaic inverter 3 electricity, gather a plurality of voltage and the current signal of photovoltaic controller 2 in the scheduled time, calculate corresponding target power diet, control photovoltaic inverter 3 operation, can carry out reactive compensation to photovoltaic inverter 3, improve photovoltaic power generation equipment's operating stability.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A voltage regulating device of a photovoltaic power generating apparatus, characterized by comprising:
the solar energy power generation system comprises a solar cell panel (1), a photovoltaic controller (2) connected with the solar cell panel (1), and a photovoltaic inverter (3) electrically connected with the photovoltaic controller (2), wherein the photovoltaic inverter (3) is used for being connected with an alternating current load (4);
the voltage regulation apparatus further includes:
an output voltage monitoring chipset (5) electrically connected with the photovoltaic inverter (3);
the curtain driving motor (6) is electrically connected with the output voltage monitoring chipset (5) and the photovoltaic inverter (3) respectively;
a battery panel curtain structure (7) connected to the curtain drive motor (6);
the solar cell panel curtain structure (7) covers the solar cell panel (1).
2. The voltage regulation device of a photovoltaic power generation apparatus according to claim 1, characterized in that the output voltage monitoring chipset (5) comprises:
a voltage sensor (501) electrically connected to the photovoltaic inverter (3);
a first voltage comparator (502) electrically connected to the voltage sensor (501);
a drive signal generator (503) electrically connected to the first voltage comparator (502);
wherein the driving signal generator (503) is also electrically connected with the curtain driving motor (6).
3. Voltage regulating device of a photovoltaic power plant according to claim 1, characterized in that said panel curtain structure (7) comprises:
a drive chain loop (701) connected to the curtain drive motor (6);
the curtain driving shaft (702) is sleeved on the transmission chain loop (701) and arranged on the side wall of the solar cell panel (1), wherein the curtain driving shaft (702) is sleeved with a cell panel curtain (703).
4. Voltage regulation device of a photovoltaic power plant according to claim 1, characterized by further comprising a circuit breaker (8) connected to a line between the photovoltaic controller (2) and the photovoltaic inverter (3), the circuit breaker (8) comprising:
an overcurrent release (801) and a low-voltage release (802);
a latch hook linkage (803) corresponding in position to the over-current trip (801) and the low-voltage trip (802);
a latch hook structure (804) fixedly connected with the latch hook connecting rod (803);
a line connection contact (805) connected to the latch hook structure (804).
5. The voltage regulator of a photovoltaic power generation apparatus according to claim 1, characterized by further comprising:
and the storage battery pack (9) is electrically connected with the photovoltaic controller (2).
6. Voltage regulating device of a photovoltaic power plant according to claim 1, characterized in that it further comprises a panel purging device (10), the panel purging device (10) comprising:
a timed purge control chip (101) electrically connected with the photovoltaic inverter (3);
and the blowers (102) are electrically connected with the timing purging control chip (101) and are respectively arranged on two sides of the solar panel (1).
7. A voltage regulation device of a photovoltaic power generation apparatus according to claim 3, characterized by further comprising a panel shower device (11), the panel shower device (11) comprising:
the spray head control switch (1101) is electrically connected with the output voltage monitoring chip set (5);
and the battery plate sprayer (1102) is electrically connected with the sprayer control switch (1101).
8. The voltage regulator of a photovoltaic power generation apparatus according to claim 1, characterized by further comprising:
a reactive power compensation device (12) electrically connected to the photovoltaic inverter (3); the reactive power compensation device (12) is used for collecting a plurality of voltage and current signals of the photovoltaic controller (2) within a preset time length, calculating a corresponding target power factor, and controlling the photovoltaic inverter (3) to operate according to the target power factor.
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| CN202110504835.0A CN113113932A (en) | 2021-05-10 | 2021-05-10 | Voltage regulating device of photovoltaic power generation equipment |
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| CN202110504835.0A CN113113932A (en) | 2021-05-10 | 2021-05-10 | Voltage regulating device of photovoltaic power generation equipment |
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| CN113113932A true CN113113932A (en) | 2021-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117353315A (en) * | 2023-10-25 | 2024-01-05 | 夏尔特拉(上海)新能源科技有限公司 | Device for controlling power generation voltage based on transient fluctuation of photovoltaic and wind power generation voltage |
Citations (6)
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