CN115902496A - Photovoltaic inverter fault detection device and method thereof - Google Patents
Photovoltaic inverter fault detection device and method thereof Download PDFInfo
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- CN115902496A CN115902496A CN202211721159.3A CN202211721159A CN115902496A CN 115902496 A CN115902496 A CN 115902496A CN 202211721159 A CN202211721159 A CN 202211721159A CN 115902496 A CN115902496 A CN 115902496A
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- photovoltaic inverter
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Abstract
The invention discloses a photovoltaic inverter fault detection device and a method thereof, and the device comprises a photovoltaic inverter main body, wherein a cavity is formed in the outer surface of the photovoltaic inverter main body, a fixed block is fixedly installed at the bottom end of the cavity, a detector and an early warning device are movably installed on the outer surface of the fixed block, an indicator lamp is arranged on the outer surface of the early warning device, circular through grooves are formed in the upper side and the lower side of the detector, a telescopic mechanism is fixedly installed in the circular through grooves, a handle is pulled to enable a sliding plate to move up and down, so that people can conveniently reduce or replace the detector, the detector is connected into the detector through a live wire and a zero wire, when the inside of the detector breaks down, the handle on the outer surface of the detector can move up and down, and a power source passes through the inside of the detector, so that the indicator lamp can emit a light source to prompt people that the photovoltaic inverter breaks down, remind people of paying attention to safety, and the safety of the device is improved.
Description
Technical Field
The invention relates to the technical field of photovoltaic inverter fault detection, in particular to a photovoltaic inverter fault detection device and a method thereof.
Background
The photovoltaic inverter can convert the variable direct-current voltage generated by the photovoltaic solar panel into alternating-current inverter with commercial power frequency, and can feed back the alternating-current inverter to a commercial power transmission system or an off-grid power grid. However, in the prior art, the photovoltaic inverter does not have a detection device, so that under the condition that the photovoltaic inverter fails again, information of people cannot be fed back well, normal work of people is affected, and meanwhile, if the photovoltaic inverter fails, quick insulation is needed, so that electric shock danger is avoided.
Disclosure of Invention
Objects of the invention
In view of the above, the present invention provides a device and a method for detecting a fault of a photovoltaic inverter, which solves the problems mentioned above.
(II) technical scheme
A photovoltaic inverter fault detection device and a method thereof comprise a photovoltaic inverter main body, wherein a cavity is formed in the outer surface of the photovoltaic inverter main body, a fixed block is fixedly installed at the bottom end of the cavity, a detector and an early warning device are movably installed on the outer surface of the fixed block, an indicator lamp is arranged on the outer surface of the early warning device, circular through grooves are formed in the upper side and the lower side of the detector, and a telescopic mechanism is fixedly installed in the circular through grooves.
Preferably, the outer surface of the photovoltaic inverter main body is provided with a sliding groove, and two sides of the sliding groove on the outer surface of the photovoltaic inverter main body are provided with limiting holes.
Preferably, a through groove is formed in one side of the outer wall of the cavity, a sliding plate is movably mounted in the through groove in the outer wall of the cavity, the sliding plate is made of transparent plastic, and a connecting piece is fixedly mounted at one end of the sliding plate.
Preferably, the two sides of the connecting piece are fixedly provided with connecting blocks, the outer surface of each connecting block is movably provided with a screw, the outer surface of each screw is provided with a handle, and the top end of each connecting piece is fixedly provided with a handle.
Preferably, telescopic machanism is including solid fixed ring, and solid fixed ring fixed mounting in circular logical groove, and solid fixed ring's one end is connected with fixed loop bar, the one end of fixed loop bar is connected with the connecting rod, and the surface movable mounting of connecting rod has the line source protection ring.
Preferably, the outer surface of the line source protection ring is wrapped with rubber, the protection rings are divided into two groups, and the two groups of protection rings are respectively connected with the live line and the zero line.
Preferably, the detection method is based on the photovoltaic inverter fault detection apparatus according to any one of claims 1 to 6, and the detection method is as follows:
firstly, the live wire and the zero line are connected to an internal transformer of the photovoltaic inverter main body, one end of the live wire and one end of the zero line are connected to the inside of the detector, the live wire and the zero line are wound on the magnetic ring, the live wire and the zero line are connected between the power panels at the moment, and finally the live wire and the zero line penetrate out of the other end of the detector, so that the live wire and the zero line can be connected to the photovoltaic inverter main body again.
According to the technical scheme, the method has the following beneficial effects:
according to the photovoltaic inverter, the sliding plate can move up and down by pulling the handle, so that people can conveniently reduce or replace the detector, the handle on the outer surface of the detector can move up and down when the inside of the detector breaks down, and the power supply passes through the inside of the detector, so that the indicator lamp can emit a light source, the photovoltaic inverter is prompted to break down, people are reminded of paying attention to safety, and the safety of the photovoltaic inverter is improved.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the invention at B of FIG. 1;
fig. 4 is a schematic structural view of the telescoping mechanism of the present invention.
In the figure: 1. a photovoltaic inverter body; 2. a cavity; 3. a slide plate; 4. a detector; 5. an early warning device; 6. a fixed block; 7. an indicator light; 8. a line source protection ring; 811. a live line; 812. a zero line; 813. a fixing ring; 814. fixing the loop bar; 815. a connecting rod; 9. a handle; 911. a connecting member; 912. connecting blocks; 913. a screw.
Detailed Description
The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. It should be understood that throughout the drawings, identical or similar reference numerals indicate identical or similar parts and features. The drawings are only schematic representations of the concepts and principles of embodiments of the disclosure, and do not necessarily show specific dimensions and proportions of the various embodiments of the disclosure. Certain features and embodiments of the disclosure may be shown in exaggerated form in particular drawings to illustrate relevant details or structures of embodiments of the disclosure.
Referring to fig. 1-4, an embodiment of the present invention is shown:
a photovoltaic inverter fault detection device and a method thereof comprise a photovoltaic inverter main body 1, wherein a cavity 2 is formed in the outer surface of the photovoltaic inverter main body 1, a fixing block 6 is fixedly installed at the bottom end of the cavity 2, a detector 4 and an early warning device 5 are movably installed on the outer surface of the fixing block 6, an indicator lamp 7 is arranged on the outer surface of the early warning device 5, circular through grooves are formed in the upper side and the lower side of the detector 4, and a telescopic mechanism is fixedly installed in the circular through grooves.
Further, the spout has been seted up to the surface of photovoltaic inverter main part 1, and the spacing hole has been seted up on the both sides of the surface spout of photovoltaic inverter main part 1, and spacing hole is block screw 913, and when spacing hole and screw 913 block, can fix slide 3 for can not reciprocate.
Further, 2 outer wall one side of cavity has been seted up and has been led to the groove, movable mounting has slide 3 in the logical groove of 2 outer walls of cavity, and slide 3 is the transparent plastic material, and has connecting piece 911 at the one end fixed mounting of slide 3, and the transparent plastic material is used for observing whether being in the normal condition of detector 4, and connecting piece 911 then plays the effect of connecting.
Further, connecting block 912 is fixedly mounted on two sides of connecting piece 911, screw rod 913 is movably mounted on the outer surface of connecting block 912, a handle is mounted on the outer surface of screw rod 913, handle 9 is fixedly mounted on the top end of connecting piece 911, and sliding plate 3 can move up and down by pulling handle 9.
Furthermore, telescopic machanism is including solid fixed ring 813, and solid fixed ring 813 fixed mounting in circular logical groove, and the one end of solid fixed ring 813 is connected with fixed loop bar 814, the one end of fixed loop bar 814 is connected with connecting rod 815, and the surface movable mounting of connecting rod 815 has line source protection ring 8, and after the power cord was connected, through pulling line source protection ring 8, make line source protection ring 8 go forward and slide to the link of protection power cord is difficult for breaking away from, thereby causes the danger of electric leakage.
Furthermore, the outer surface of the line source protection ring 8 is wrapped with rubber which has an excellent insulation effect, the safety of the device is improved, the protection rings 8 are divided into two groups, and the two groups of protection rings 8 are respectively connected with a live wire 811 and a zero wire 812.
Further, the detection method is based on the device for detecting the fault of the photovoltaic inverter as claimed in any one of the above claims 1 to 6, and the detection method is as follows:
the live wire 811 and the zero wire 812 are firstly connected to an internal transformer of the photovoltaic inverter body 1, one ends of the live wire 811 and the zero wire 812 are connected to the inside of the detector 4, the live wire 811 and the zero wire 812 are wound on a magnetic ring, the live wire 811 and the zero wire 812 are connected between power panels at the moment, and finally the live wire 811 and the zero wire 812 penetrate out of the other end of the detector 4, so that the live wire 811 and the zero wire 812 can be connected to the photovoltaic inverter body again.
The working principle is as follows: the live wire 811 and the zero wire 812 are connected to an internal transformer of the photovoltaic inverter body 1, power flows into the detector 4 through the live wire 811 and the zero wire 812, and then flows out from the live wire 811 and the zero wire 812 at the other ends of the live wire 811 and the zero wire 812, when a fault occurs inside the photovoltaic inverter, the most common fault of the photovoltaic inverter is an ac voltage out-of-range, since the voltage of a power grid is not constant and varies with the change of load and power flow, when the current is too high, a short circuit in the wire is easily caused, and when the detector 4 is connected to the photovoltaic inverter, the current can pass through the test of the detector 4, thereby rapidly insulating and cutting off the photovoltaic inverter, a power panel and a magnetic ring are included inside the detector 4, the power panel is a current nerve for conducting and analyzing signals transmitted from the zero sequence transformer, while the live wire 811 and the zero wire 812 are included on the magnetic ring, and the live wire 811 and the zero wire 812 generate a magnetic field under the energized condition, and the currents inside the live wire 811 and the zero wire 812 are opposite, therefore, under the normal operation condition, the magnetic field generated in the zero wire 811 and the zero wire 812 can cancel each other magnetic field, and the magnetic field generated by the live wire 812, thereby, the magnetic field can be detected in the whole by the magnetic field, and the magnetic field generated by the detector 4, and the magnetic field generated by the magnetic ring can be detected under the condition that the magnetic field generated by the live wire 811 and the magnetic field generated by the magnetic ring.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. A photovoltaic inverter fault detection device includes a photovoltaic inverter main body (1), characterized in that: the photovoltaic inverter comprises a photovoltaic inverter main body (1), and is characterized in that a cavity (2) is formed in the outer surface of the photovoltaic inverter main body (1), a fixing block (6) is fixedly installed at the bottom end of the cavity (2), a detector (4) and an early warning device (5) are movably installed on the outer surface of the fixing block (6), an indicating lamp (7) is arranged on the outer surface of the early warning device (5), circular through grooves are formed in the upper side and the lower side of the detector (4), a telescopic mechanism is fixedly installed in the circular through grooves, and a power panel and a magnetic ring are arranged in the detector (4).
2. The photovoltaic inverter fault detection device of claim 1, wherein: the outer surface of the photovoltaic inverter main body (1) is provided with a sliding groove, and two sides of the sliding groove on the outer surface of the photovoltaic inverter main body (1) are provided with limiting holes.
3. The device for detecting a fault in a photovoltaic inverter according to claim 2, wherein: a through groove is formed in one side of the outer wall of the cavity (2), a sliding plate (3) is movably mounted in the through groove in the outer wall of the cavity (2), the sliding plate (3) is made of transparent plastic, and a connecting piece (911) is fixedly mounted at one end of the sliding plate (3).
4. The photovoltaic inverter fault detection device of claim 3, wherein: the connecting piece is characterized in that connecting blocks (912) are fixedly mounted on two sides of the connecting piece (911), a screw rod (913) is movably mounted on the outer surface of each connecting block (912), a handle is mounted on the outer surface of each screw rod (913), and a handle (9) is fixedly mounted at the top end of the connecting piece (911).
5. The photovoltaic inverter fault detection device of claim 1, wherein: telescopic machanism is including solid fixed ring (813), and solid fixed ring (813) fixed mounting in circular logical groove, and the one end of solid fixed ring (813) is connected with fixed loop bar (814), the one end of fixed loop bar (814) is connected with connecting rod (815), and the surface movable mounting of connecting rod (815) has line source guard ring (8).
6. The photovoltaic inverter fault detection device of claim 5, wherein: the outer surface of the line source protection ring (8) is wrapped with rubber, the protection rings (8) are divided into two groups, and the two groups of protection rings (8) are respectively connected with a live wire (811) and a zero wire (812).
7. A method for detecting a fault of a photovoltaic inverter, wherein the method is based on the device for detecting a fault of a photovoltaic inverter as claimed in any one of claims 1 to 6, and the method comprises:
the photovoltaic inverter comprises a photovoltaic inverter body (1), a live wire (811) and a zero line (812) are connected to an internal transformer of the photovoltaic inverter body (1), one ends of the live wire (811) and the zero line (812) are connected with the inside of a detector (4), the live wire (811) and the zero line (812) are wound on a magnetic ring, the live wire (811) and the zero line (812) are connected between power panels at the moment, and finally the live wire (811) and the zero line (812) penetrate out of the other end of the detector (4) to enable the live wire (811) and the zero line (812) to be connected into the photovoltaic inverter body again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211721159.3A CN115902496A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic inverter fault detection device and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211721159.3A CN115902496A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic inverter fault detection device and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115902496A true CN115902496A (en) | 2023-04-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211721159.3A Withdrawn CN115902496A (en) | 2022-12-30 | 2022-12-30 | Photovoltaic inverter fault detection device and method thereof |
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| CN (1) | CN115902496A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117233557A (en) * | 2023-11-14 | 2023-12-15 | 深圳市耐斯特能源科技有限公司 | Arc fault detection device and method for photovoltaic energy storage inverter |
-
2022
- 2022-12-30 CN CN202211721159.3A patent/CN115902496A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117233557A (en) * | 2023-11-14 | 2023-12-15 | 深圳市耐斯特能源科技有限公司 | Arc fault detection device and method for photovoltaic energy storage inverter |
| CN117233557B (en) * | 2023-11-14 | 2024-03-01 | 深圳市耐斯特能源科技有限公司 | Arc fault detection device and method for photovoltaic energy storage inverter |
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Application publication date: 20230404 |
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| WW01 | Invention patent application withdrawn after publication |