CN116937937A - Photovoltaic power station inverter cluster regulation and control method and device - Google Patents
Photovoltaic power station inverter cluster regulation and control method and device Download PDFInfo
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- CN116937937A CN116937937A CN202311197139.5A CN202311197139A CN116937937A CN 116937937 A CN116937937 A CN 116937937A CN 202311197139 A CN202311197139 A CN 202311197139A CN 116937937 A CN116937937 A CN 116937937A
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000000694 effects Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 10
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 abstract description 6
- 230000003116 impacting effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
-
- 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
- H02S40/30—Electrical components
- H02S40/32—Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules
-
- 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
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- 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
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/18—Construction of rack or frame
- H05K7/183—Construction of rack or frame support rails therefor
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention belongs to the technical field of inverter regulation and control, and particularly discloses a photovoltaic power station inverter cluster regulation and control method and device. When the shell is impacted in the working process of the inverter, the pressing plate moves downwards, the pressing plate drives the two side plates to gradually approach the shell by using the inclined plate when the pressing plate moves downwards, the pressing plate correspondingly presses the rubber sheet in the process of approaching the shell, the side plates correspondingly press the elastic plate in the process of approaching the shell, the rubber sheet and the elastic plate are utilized to absorb the impact force of the pressing plate, the impact force is prevented from directly impacting the surface of the shell, the inverter is protected by the shell, and the situation that the inverter is damaged due to the impact force is avoided.
Description
Technical Field
The invention relates to the technical field of inverter regulation and control, in particular to a photovoltaic power station inverter cluster regulation and control method and device.
Background
With the increasing importance of people on clean energy, more factories are willing to adopt photovoltaic power stations to provide electricity for the factories.
When the direct current output by the photovoltaic power station is converted and regulated by the inverter, the inverter is easy to damage under the impact of external components, so that the normal operation of the inverter is affected.
Therefore, it is necessary to invent a photovoltaic power station inverter cluster control method and apparatus to solve the above-mentioned problems.
Disclosure of Invention
The embodiment of the invention discloses a photovoltaic power station inverter cluster regulation and control method and device, which are used for solving the problems in the background technology.
The embodiment of the invention provides photovoltaic power station inverter cluster regulation and control equipment, which comprises an inverter and a shell positioned at the outer side of the inverter, wherein vertical rods are vertically fixed at four corners inside the shell, sliding carriages are respectively arranged at two sides inside the shell, two ends of each sliding carriage are respectively and slidably sleeved on the surfaces of two vertical rods, screw caps are respectively arranged at two ends of the top surface and the bottom surface of each sliding carriage, the screw caps are spirally sleeved on the surfaces of the vertical rods, a sliding groove is arranged at the inner side of each sliding carriage, a movable frame for limiting the inverter is slidably clamped at the inner side of each sliding groove, the sliding carriages are correspondingly limited at the side surface of each inverter by the movable frame, the movable frames are vertically arranged, side grooves are formed in the inner side surface of each movable frame, clamping plates are respectively positioned inside the side grooves of the two movable frames, screw rods spirally penetrate through the end parts of the two clamping plates, screw grooves are correspondingly matched with the screw rods at the end parts of the clamping plates at the top and the bottom of each sliding carriage, the screw rods are spirally matched with the screw rods, the two clamping plates are mutually close to or far away from each other, the two clamping plates are correspondingly provided with the two power supply plugs at the front side surfaces and the two power supply plugs are respectively arranged at the front side surfaces and the power supply plugs and the power supply plug connectors are respectively connected with the power supply plug.
Further, the shell both sides face is provided with two curb plates relatively, and two curb plate medial surfaces are installed the frame elastic plate, and curb plate medial surface utilizes elastic plate and shell side laminating, shell both sides face center department all is provided with the breach, the lateral plate center department rotates the outside end of two swivel plates of joint, and two swivel plates correspond the breach that runs through the shell, the top and the bottom of balladeur train all are provided with the connecting rod, and two swivel plate medial ends rotate respectively and cup joint in two connecting rod surfaces, and the connecting rod both ends all are fixed with the slide, and two connecting rods at balladeur train top utilize two slide fixed connection, and two connecting rods and two slide constitution frames, and four turning of frame slip respectively cup joint in four montant surfaces.
Further, the two connecting rods on one side of the side plate and the inverter are matched to define two rotating plates, the distance between the inner side ends of the two rotating plates is smaller than the distance between the outer side ends of the two rotating plates, when the side plate is close to the side surface of the shell, the side plate pushes the rotating plates to rotate, and the rotating plates enable the two connecting rods on one side of the inverter to be close to each other.
Further, the shell top is provided with the clamp plate, four corners of shell top surface all are fixed with the protruding pole that runs through the clamp plate, clamp plate bottom surface both sides all are provided with the swash plate, and the bottom surface of two swash plates is laminated respectively at two curb plate tops, and when pushing the clamp plate to move down, the clamp plate utilizes two swash plates to promote two curb plates to be close to the shell, the clamp plate bottom surface is fixed with a plurality of equidistance rubber sheets of arranging side by side.
Further, two opposite limiting grooves are formed in the top surface and the bottom surface of the wiring frame, a movable frame is movably clamped at the top and the bottom of the wiring frame by the limiting grooves, the movable frame comprises limiting plates and a pushing plate, the limiting plates are located on the inner side of the wiring frame, the pushing plate is located on the outer side of the wiring frame, sliding rods which are in sliding fit with the limiting grooves are fixed between the limiting plates and the pushing plate, the top and the bottom of the end face of the inner side of the power plug correspond to the two limiting plates respectively, and two sliding plates at the top and the bottom of the front end of the inverter correspond to the two pushing plates at the top and the bottom of the wiring frame respectively.
Further, the inside both sides of wire frame all are provided with the clamping rod that runs through limiting plate both ends, and the clamping rod surface has cup jointed the spring, and two limiting plates utilize spring coupling, and clamping rod center department is fixed with the fixture block that limits spring center department, the inside both sides of wire frame all are fixed with the horizontal pole that runs through fixture block center department, and the elastic component has cup jointed on the horizontal pole surface, and during power plug got into the wire frame inside, power plug utilized two limiting plates to promote clamping rod and fixture block at horizontal pole surface slip.
Further, the top and the bottom of the wiring frame are hinged with clamping plates, two side faces of the clamping plates are connected with the wiring frame through torsion springs, the inner ends of the two clamping plates correspond to two limiting plates respectively, clamping grooves corresponding to the inner ends of the clamping plates are formed in the limiting plates, when a power plug is correspondingly communicated with an inverter, the inner ends of the clamping plates are correspondingly buckled on the inner sides of the clamping grooves, and protruding blocks corresponding to the outer ends of the clamping plates are fixed on the limiting plates.
The invention also provides a photovoltaic power station inverter cluster regulation and control method, which is applied to the photovoltaic power station inverter cluster regulation and control equipment and comprises the following steps:
s1, synchronously rotating a screw, wherein the screw and the screw effect of the end part of the clamp plate enable the distance between the top clamp plate and the bottom clamp plate to be increased, correspondingly placing an inverter at the top of the bottom clamp plate, reversely rotating the screw, and mutually approaching the screw and the screw effect of the end part of the clamp plate, so that the preliminary limitation of the inverter is completed by clamping the clamp plate;
s2, rotating nuts on the surface of the vertical rod, driving the sliding frame to move up and down on the surface of the vertical rod by using the spiral effect of the nuts and the vertical rod, limiting the inverter by using the movable frame and the clamping plate, and driving the inverter to move up and down on the inner side of the shell by the sliding frame in the moving process, so that the positions of the wire frames at the front end and the rear end of the inverter correspond to the through holes of the sealing plate, and respectively plugging an input power supply device and an output power supply device into the wire frames at the front end and the rear end of the inverter by using two power plugs;
s3, after the direct current generated by the photovoltaic power station is stored through the input power supply equipment, the input power supply equipment inputs the direct current into the inverter through the power plug, the inverter converts the direct current into frequency-modulation voltage-regulation alternating current, the frequency-modulation voltage-regulation alternating current is transmitted to the output power supply equipment through the other power plug, the inverter is externally connected with the cluster monitoring equipment, and the cluster monitoring equipment controls the direct current generated by the photovoltaic power station to be regulated and controlled according to the frequency-modulation voltage-regulation alternating current generated by the inverter;
s4, when the shell is impacted in the working process of the inverter, the pressing plate moves downwards, the pressing plate drives the two side plates to be gradually close to the shell by using the inclined plates when the pressing plate moves downwards, the pressing plate correspondingly presses the rubber sheet in the process of being close to the shell, the side plates correspondingly press the elastic plate in the process of being close to the shell, and the impact force borne by the pressing plate is absorbed by the rubber sheet and the elastic plate, so that the impact force is prevented from directly impacting the surface of the shell;
s5, when the side plates are close to the shell, the side plates move to drive the two rotating plates to rotate, the rotating plates limit the outer side ends of the rotating plates, the rotating plates enable the frame at the top to move downwards by using the connecting rods, the frame at the bottom moves upwards, the sliding plates at the top and the bottom of the wiring frame are respectively extruded on the moving frames at the top and the bottom of the wiring frame by the frames moving oppositely, the moving frames drive the limiting plates to be close to the inner side ends of the power plugs by using the sliding rods, the protruding blocks of the pushing plates extrude the outer side ends of the clamping plates, at the moment, the clamping grooves of the limiting plates are separated from the inner side ends of the clamping plates, the elastic force of the elastic pieces drives the sliding rods of the two moving frames to slide inside the limiting grooves by using the limiting plates, and the power plugs are pushed out of the wiring frame by using the limiting plates, and the separation of the power plugs and the wiring frame is completed.
From the above technical solutions, the embodiment of the present invention has the following advantages:
1. when the shell is impacted in the working process of the inverter, the pressing plate moves downwards, the pressing plate drives the two side plates to gradually approach the shell by using the inclined plate when the pressing plate moves downwards, the pressing plate correspondingly presses the rubber sheet in the process of approaching the shell, the side plates correspondingly press the elastic plate in the process of approaching the shell, the rubber sheet and the elastic plate are utilized to absorb the impact force of the pressing plate, the impact force is prevented from directly impacting the surface of the shell, the inverter is protected by the shell, and the situation that the inverter is damaged due to the impact force is avoided.
2. When the side plates are close to the shell, the side plates move to drive the two rotating plates to rotate, the rotating plates rotate to enable the two frame shapes to move in opposite directions, further, sliding plates at the top and the bottom of the wiring frame are respectively extruded on moving frames at the top and the bottom of the wiring frame, the moving frames drive limiting plates to be close to the inner side end of the power plug by utilizing sliding rods, protruding blocks of the pushing plates extrude the outer side end of the clamping plates, clamping grooves of the limiting plates are separated from the inner side end of the clamping plates at the moment, elastic force of the elastic pieces drive sliding rods of the two moving frames to slide inside the limiting grooves by utilizing clamping blocks and clamping rods, the moving frames push the power plug out of the wiring frame by utilizing the limiting plates to finish the separation of the power plug and the wiring frame, and when the inverter is damaged under the action of impact force, the power plug is conveniently separated from the inverter by utilizing the elastic force of the elastic pieces, so that overload burning of the inverter is avoided in the process of inputting direct current into the inverter by power supply equipment.
3. According to the movable frame, the clamping blocks at the centers of the clamping rods correspondingly squeeze the elastic pieces on the surfaces of the cross rods until the power plug is correspondingly connected with the power socket of the inverter, the limiting plate of the movable frame drives the inner side end of the clamping plate to rotate when moving, the torsion springs are twisted when the clamping plate rotates until the inner side end of the clamping plate corresponds to the clamping groove, the clamping plate reversely rotates due to the twisting force of the torsion springs, the inner side end of the clamping plate is correspondingly buckled in the clamping groove, and the connection stability of the power plug and the power socket of the inverter is ensured by the buckling cooperation of the clamping plate and the clamping groove; and the clamping block is limited by the cross rod, and the clamping rod is limited by the limiting groove, so that the situation that the movable frame is deviated or rotated in the moving process is avoided.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a photovoltaic power station inverter cluster control device according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of a photovoltaic power station inverter cluster control apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the photovoltaic power station inverter cluster control equipment according to the embodiment of the present invention when the carriage, the movable frame, the clamping plate and the screw are matched;
fig. 4 is a schematic view of an internal structure of another angle of the photovoltaic power station inverter cluster tool according to the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a connection frame and a power plug of the photovoltaic power station inverter cluster control device according to an embodiment of the present invention;
in the figure: 1. an inverter; 2. a housing; 3. a vertical rod; 4. a carriage; 5. a movable frame; 6. a clamping plate; 7. a screw; 8. a wire frame; 9. a power plug; 10. a sealing plate; 11. a side plate; 12. an elastic plate; 13. a rotating plate; 14. a connecting rod; 15. a slide plate; 16. a pressing plate; 17. a sloping plate; 18. a rubber sheet; 19. defining a slot; 20. a limiting plate; 21. a push plate; 22. a slide bar; 23. a clamping rod; 24. a spring; 25. a clamping block; 26. a cross bar; 27. an elastic member; 28. a clamping plate; 29. a clamping groove.
Detailed Description
In order to better understand the aspects of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The photovoltaic power station inverter cluster regulation and control equipment provided by the embodiment of the invention comprises an inverter 1 and a shell 2 positioned outside the inverter 1, wherein four corners inside the shell 2 are vertically fixed with vertical rods 3, two sides inside the shell 2 are respectively provided with a sliding frame 4, two ends of the sliding frame 4 are respectively and slidably sleeved on the surfaces of the two vertical rods 3, two ends of the top surface and the bottom surface of the sliding frame 4 are respectively provided with nuts, the nuts are spirally sleeved on the surfaces of the vertical rods 3, the inner side surface of the sliding frame 4 is provided with a sliding groove, the inner side of the sliding groove is slidably clamped with a movable frame 5 for limiting the inverter 1, the sliding frame 4 is correspondingly limited on the side surface of the inverter 1 by utilizing the movable frame 5, the movable frame 5 is vertically arranged, the inner side surface of the movable frame 5 is provided with side grooves, the top surface and the bottom surface of the inverter 1 are respectively provided with clamping plates 6, two ends of the clamping plates 6 are respectively positioned inside the side grooves of the two movable frames 5, screw rods 7 spirally penetrate through the two ends of the two clamping plates 6, the ends of the clamping plates 6 are respectively provided with screw grooves corresponding to the screw grooves 7, the screw grooves and the screw grooves 6 are correspondingly matched with the screw grooves 1 and the screw grooves 6 are correspondingly arranged at the ends of the clamping plates 6, the screw grooves are correspondingly arranged at the screw grooves and the screw grooves 6 and the screw grooves are correspondingly far from the screw grooves 6 or the screw grooves 6 are correspondingly matched with the screw grooves 6 to the screw grooves 6. The screw rod 7 is synchronously rotated, the spiral effect of the screw rod 7 and the end part of the clamping plate 6 enables the distance between the top clamping plate 6 and the bottom clamping plate 6 to be increased, the inverter 1 is correspondingly placed at the top of the bottom clamping plate 6, the screw rod 7 is reversely rotated, the screw rod 7 and the end part of the clamping plate 6 are in spiral effect, the top clamping plate 6 and the bottom clamping plate 6 are close to each other, and the primary limitation of the inverter 1 is completed by clamping of the clamping plate 6.
The front side and the rear side of the inverter 1 are both provided with a wire frame 8, the inverter 1 utilizes two wire frames 8 to be externally connected with a power plug 9, the two power plugs 9 are respectively connected with an input power device and an output power device, the front side and the rear side of the shell 2 are both provided with sealing plates 10 by utilizing screws, and the center of the sealing plates 10 is provided with a through hole corresponding to the power plug 9. The screw cap on the surface of the vertical rod 3 is rotated, the screw effect of the screw cap and the vertical rod 3 is utilized to drive the sliding frame 4 to move up and down on the surface of the vertical rod 3, the sliding frame 4 utilizes the movable frame 5 and the clamping plate 6 to limit the inverter 1, the sliding frame 4 drives the inverter 1 to move up and down on the inner side of the shell 2 in the moving process, the positions of the wire frames 8 at the front end and the rear end of the inverter 1 correspond to the through holes of the sealing plates 10, the two sealing plates 10 are respectively installed on the front end and the rear end face of the shell 2 by utilizing a plurality of screws, and the input power supply equipment and the output power supply equipment are respectively inserted into the wire frames 8 at the front end and the rear end of the inverter 1 through two power plugs 9.
After the direct current generated by the photovoltaic power station is stored through the input power supply equipment, the input power supply equipment inputs the direct current into the inverter 1 through the power plug 9, the inverter 1 converts the direct current into frequency-modulation voltage-regulation alternating current, the frequency-modulation voltage-regulation alternating current is transmitted to the output power supply equipment through the other power plug 9, the inverter 1 is externally connected with the cluster monitoring equipment, and the cluster monitoring equipment controls and regulates the direct current generated by the photovoltaic power station according to the frequency-modulation voltage-regulation alternating current generated by the inverter 1.
In fig. 1, fig. 2 and fig. 4, two side plates 11 are oppositely arranged on two side surfaces of a shell 2, a frame-type elastic plate 12 is installed on the inner side surfaces of the two side plates 11, the inner side surfaces of the side plates 11 are attached to the side surfaces of the shell 2 by using the elastic plate 12, gaps are formed in the centers of the two side surfaces of the shell 2, the centers of the side plates 11 rotate and are clamped with the outer side ends of two rotating plates 13, the two rotating plates 13 correspondingly penetrate through the gaps of the shell 2, connecting rods 14 are respectively arranged at the top and the bottom of a sliding frame 4, the inner side ends of the two rotating plates 13 are respectively rotatably sleeved on the surfaces of the two connecting rods 14, sliding plates 15 are respectively fixed at the two ends of the connecting rods 14, the two connecting rods 14 at the top of the sliding frame 4 are fixedly connected by using the two sliding plates 15, the two connecting rods 14 and the two sliding plates 15 form a frame, and four corners of the frame are respectively in sliding sleeved on the surfaces of four vertical rods 3. When the external part impacts on the side plate 11, the side plate 11 is close to the shell 2 under the impact force, the side plate 11 correspondingly presses the frame-shaped elastic plate 12 in the process of being close to the shell 2, the elastic plate 12 is used for absorbing the impact force of the external part on the side plate 11, and the external part is prevented from directly impacting on the shell 2.
In fig. 2 and 4, the side plate 11 and the two connecting rods 14 on the side of the inverter 1 cooperate to define two rotating plates 13, the distance between the inner ends of the two rotating plates 13 is smaller than the distance between the outer ends of the two rotating plates, when the side plate 11 approaches the side of the housing 2, the side plate 11 pushes the rotating plates 13 to rotate, and the rotating plates 13 make the two connecting rods 14 on the side of the inverter 1 approach each other. When the side plate 11 is close to the shell 2, the side plate 11 drives the outer side end of the rotating plate 13 to move, and the rotating plate 13 is driven by the side plate 11 to rotate because the side plate 11 limits the rotating plate 13, and the rotating plate 13 utilizes the connecting rod 14 to enable the frame to move on the surface of the vertical rod 3, so that the top frame and the bottom frame are close to each other. When the elastic force of the elastic plate 12 makes the side plate 11 far away from the shell 2, the side plate 11 pulls the outer side end of the rotating plate 13 to move, the rotating plate 13 makes the frame move on the surface of the vertical rod 3 by using the connecting rod 14, and at the moment, the top frame and the bottom frame are far away from each other.
In fig. 1, fig. 2 and fig. 4, the top of the housing 2 is provided with a pressing plate 16, four corners of the top of the housing 2 are respectively fixed with a protruding rod penetrating through the pressing plate 16, two sides of the bottom of the pressing plate 16 are respectively provided with inclined plates 17, the bottom surfaces of the two inclined plates 17 are respectively attached to the tops of the two side plates 11, when the pressing plate 16 is pushed to move downwards, the pressing plate 16 pushes the two side plates 11 to be close to the housing 2 by utilizing the two inclined plates 17, and a plurality of equidistant rubber sheets 18 are fixed on the bottom surface of the pressing plate 16. When the shell 2 is impacted in the working process of the inverter 1, when the impact causes the pressing plate 16 to move downwards, the pressing plate 16 moves downwards to drive the two side plates 11 to be gradually close to the shell 2 by using the inclined plate 17, the pressing plate 16 correspondingly presses the rubber sheet 18 in the process of being close to the shell 2, the side plates 11 correspondingly press the elastic plate 12 in the process of being close to the shell 2, the impact force received by the pressing plate 16 is absorbed by the rubber sheet 18 and the elastic plate 12, the impact force is prevented from directly impacting the surface of the shell 2, and the protection performance of the shell 2 is improved.
In fig. 1 and 5, the top surface and the bottom surface of the wire frame 8 are respectively provided with two opposite limiting grooves 19, the top and the bottom of the wire frame 8 are movably clamped with a movable frame by the limiting grooves 19, the movable frame comprises a limiting plate 20 and a pushing plate 21, the limiting plate 20 is positioned on the inner side of the wire frame 8, the pushing plate 21 is positioned on the outer side of the wire frame 8, a sliding rod 22 in sliding fit with the limiting grooves 19 is fixed between the limiting plate 20 and the pushing plate 21, the top and the bottom of the inner end surface of the power plug 9 respectively correspond to the two limiting plates 20, and the two sliding plates 15 at the top and the bottom of the front end of the inverter 1 respectively correspond to the two pushing plates 21 at the top and the bottom of the wire frame 8. When the power plug 9 is inserted into the wire frame 8, the top and the bottom of the inner side end of the power plug 9 drive the moving frames at the top and the bottom to move respectively, and the moving frames move inside the limiting groove 19 of the wire frame 8 by utilizing the sliding rods 22.
Clamping rods 23 penetrating through two ends of the limiting plates 20 are arranged on two sides of the inside of the wire frame 8, springs 24 are sleeved on the surfaces of the clamping rods 23, the two limiting plates 20 are connected through the springs 24, clamping blocks 25 defining the centers of the springs 24 are fixed at the centers of the clamping rods 23, cross rods 26 penetrating through the centers of the clamping blocks 25 are fixed on two sides of the inside of the wire frame 8, elastic pieces 27 are sleeved on the surfaces of the cross rods 26, and when a power plug 9 enters the inside of the wire frame 8, the power plug 9 pushes the clamping rods 23 and the clamping blocks 25 to slide on the surfaces of the cross rods 26 through the two limiting plates 20. Due to the limitation of the springs 24 to the two moving frames, the limiting plates 20 of the two moving frames are respectively positioned at the top and the bottom of the inner side of the wire frame 8, when the two moving frames synchronously move, the two moving frames drive the clamping rod 23 and the clamping block 25 to slide on the surface of the cross rod 26, the cross rod 26 is used for limiting the clamping block 25, the limiting groove 19 is used for limiting the clamping rod 23, and the situation that the moving frames deviate or rotate in the moving process is avoided.
In fig. 1 and 5, the top and the bottom of the wire frame 8 are both hinged with clamping plates 28, two side surfaces of the clamping plates 28 are connected with the wire frame 8 by torsion springs, the inner ends of the two clamping plates 28 respectively correspond to the two limiting plates 20, the limiting plates 20 are provided with clamping grooves 29 corresponding to the inner ends of the clamping plates 28, when the power plug 9 is correspondingly communicated with the inverter 1, the inner ends of the clamping plates 28 are correspondingly buckled inside the clamping grooves 29, and the limiting plates 20 are fixedly provided with protruding blocks corresponding to the outer ends of the clamping plates 28. The movable frame utilizes the clamping block 25 at the center of the clamping rod 23 to correspondingly extrude the elastic piece 27 on the surface of the cross rod 26 until the power plug 9 is correspondingly connected with the power socket of the inverter 1, the limiting plate 20 of the movable frame drives the inner side end of the clamping plate 28 to rotate when moving, the torsion spring is twisted when the clamping plate 28 rotates until the inner side end of the clamping plate 28 corresponds to the position of the clamping groove 29, the clamping plate 28 reversely rotates due to the twisting force of the torsion spring, the inner side end of the clamping plate 28 is correspondingly buckled inside the clamping groove 29, and the stability of the connection of the power plug 9 and the power socket of the inverter 1 is ensured by the buckling fit of the clamping plate 28 and the clamping groove 29.
When the side plate 11 approaches the shell 2, the side plate 11 moves to drive the two rotating plates 13 to rotate, the rotating plates 13 utilize the connecting rods 14 to enable the top frame to move downwards by virtue of the side plate 11 limiting the outer side ends of the rotating plates 13, the bottom frame moves upwards by virtue of the connecting rods 14, the sliding plates 15 at the top and the bottom of the wire frame 8 are respectively extruded on the moving frames at the top and the bottom of the wire frame 8 by virtue of the frames moving oppositely, the moving frames utilize the sliding rods 22 to drive the limiting plate 20 to approach the inner side ends of the power plug 9, the convex blocks of the pushing plate 21 extrude the outer side ends of the clamping plates 28, at the moment, the clamping grooves 29 of the limiting plate 20 are separated from the inner side ends of the clamping plates 28, the elastic force of the elastic piece 27 drives the sliding rods 22 of the two moving frames to slide in the inner sides of the limiting grooves 19 by virtue of the clamping blocks 25 and the clamping rods 23, and the moving frames utilize the limiting plate 20 to push the power plug 9 out of the wire frame 8, so that the separation of the power plug 9 and the wire frame 8 is completed.
When the inverter 1 is damaged under the action of impact force, the power plug 9 is conveniently separated from the inverter 1 by utilizing the elastic force of the elastic piece 27, so that the overload burning condition of the inverter 1 caused in the process that the input power equipment inputs direct current into the inverter 1 is avoided.
The invention also provides a photovoltaic power station inverter cluster regulation and control method, which is applied to the photovoltaic power station inverter cluster regulation and control equipment, and is shown with reference to fig. 1 to 5, and comprises the following steps:
s1, synchronously rotating a screw rod 7, wherein the screw effect of the screw rod 7 and the end part of a clamping plate 6 enables the distance between the top clamping plate 6 and the bottom clamping plate 6 to be increased, correspondingly placing an inverter 1 on the top of the bottom clamping plate 6, reversely rotating the screw rod 7, and mutually approaching the screw rod 7 and the clamping plate 6 on the top of the screw effect of the end part of the clamping plate 6 and the clamping plate 6, and completing preliminary limitation of the inverter 1 by clamping the clamping plate 6;
s2, rotating nuts on the surface of the vertical rod 3, driving the sliding frame 4 to move up and down on the surface of the vertical rod 3 by using the spiral effect of the nuts and the vertical rod 3, limiting the inverter 1 by the sliding frame 4 through the movable frame 5 and the clamping plates 6, and driving the inverter 1 to move up and down on the inner side of the shell 2 in the moving process by the sliding frame 4, so that the positions of the front and rear end wire frames 8 of the inverter 1 correspond to the through holes of the sealing plates 10, and respectively plugging an input power supply device and an output power supply device into the front and rear end wire frames 8 of the inverter 1 through two power plugs 9;
s3, after the direct current generated by the photovoltaic power station is stored through an input power supply device, the input power supply device inputs the direct current into the inverter 1 through a power plug 9, the inverter 1 converts the direct current into frequency-modulation voltage-regulation alternating current and then transmits the frequency-modulation voltage-regulation alternating current to an output power supply device through another power plug 9, the inverter 1 is externally connected with a cluster monitoring device, and the cluster monitoring device controls and regulates the direct current generated by the photovoltaic power station according to the frequency-modulation voltage-regulation alternating current generated by the inverter 1;
s4, when the shell 2 is impacted in the working process of the inverter 1, the pressing plate 16 moves downwards to drive the two side plates 11 to be gradually close to the shell 2 by using the inclined plates 17, the pressing plate 16 correspondingly presses the rubber sheet 18 in the process of being close to the shell 2, the side plates 11 correspondingly presses the elastic plate 12 in the process of being close to the shell 2, and the impact force received by the pressing plate 16 is absorbed by the rubber sheet 18 and the elastic plate 12, so that the impact force is prevented from directly impacting the surface of the shell 2;
s5, when the side plate 11 is close to the shell 2, the side plate 11 moves to drive the two rotating plates 13 to rotate, the rotating plates 13 utilize the connecting rods 14 to enable the top frame to move downwards and the bottom frame to move upwards due to the fact that the side plate 11 limits the outer side ends of the rotating plates 13, the opposite moving frames enable the top sliding plates 15 and the bottom sliding plates 15 to be respectively pressed on the moving frames at the top and the bottom of the wire frame 8, the moving frames utilize the sliding rods 22 to drive the limiting plates 20 to be close to the inner side ends of the power plugs 9, the protruding blocks of the pushing plates 21 squeeze the outer side ends of the clamping plates 28, at the moment, the clamping grooves 29 of the limiting plates 20 are separated from the inner side ends of the clamping plates 28, the elastic force of the elastic pieces 27 drive the sliding rods 22 of the two moving frames to slide inside the limiting grooves 19 through the clamping blocks 25 and the clamping rods 23, and the moving frames utilize the limiting plates 20 to push the power plugs 9 out of the wire frame 8, and the power plugs 9 are separated from the wire frame 8.
The foregoing describes in detail a method and apparatus for controlling a photovoltaic power station inverter cluster provided by the present invention, and for those skilled in the art, according to the idea of the embodiment of the present invention, the details of the foregoing description should not be construed as limiting the present invention.
Claims (8)
1. Photovoltaic power plant dc-to-ac converter cluster regulation and control equipment includes dc-to-ac converter (1) to and be in shell (2) of dc-to-ac converter (1) outside, its characterized in that: the four corners inside the shell (2) are vertically fixed with vertical rods (3), sliding frames (4) are respectively arranged on two sides inside the shell (2), two ends of each sliding frame (4) are respectively sleeved on the surfaces of the two vertical rods (3) in a sliding manner, nuts are respectively arranged at two ends of the top surface and the bottom surface of each sliding frame (4), the inner side surface of each sliding frame (4) is provided with a sliding groove, movable frames (5) for limiting an inverter (1) are connected to the inner side of each sliding groove in a sliding manner, the sliding frames (4) are correspondingly limited on the side surfaces of the inverter (1) by the aid of the movable frames (5), the inner side surfaces of the movable frames (5) are respectively provided with side grooves, the top surfaces and the bottom surfaces of the inverter (1) are respectively provided with clamping plates (6), two ends of each clamping plate (6) are respectively arranged in the side grooves, screw rods (7) penetrating through the end parts of the two clamping plates (6) in a spiral manner are spirally sleeved on the inner sides of the side grooves, screw grooves are correspondingly matched with the screw grooves (7), the top parts of the inverter (1) and the end parts of the two clamping plates (6) are respectively matched with the screw grooves (7) in a direction opposite to the screw grooves (7), the front side and the rear side of the inverter (1) are both provided with a wire frame (8), the inverter (1) utilizes two wire frames (8) to be externally connected with a power plug (9), the two power plugs (9) are respectively connected with input power equipment and output power equipment, the front side and the rear side of the shell (2) are both provided with sealing plates (10) by utilizing screws, and the center of each sealing plate (10) is provided with a through hole corresponding to the corresponding power plug (9).
2. The photovoltaic power plant inverter cluster control apparatus of claim 1, wherein:
the utility model discloses a frame-type sliding frame is characterized in that two side plates (11) are oppositely arranged on two side surfaces of a shell (2), a frame-type elastic plate (12) is arranged on the inner side surfaces of the two side plates (11), the inner side surfaces of the side plates (11) are attached to the side surfaces of the shell (2) by using the elastic plate (12), gaps are formed in the centers of the two side surfaces of the shell (2), the outer side ends of two rotating plates (13) are rotationally clamped at the centers of the side plates (11), the two rotating plates (13) correspondingly penetrate through the gaps of the shell (2), connecting rods (14) are respectively arranged at the top and the bottom of a sliding frame (4), sliding plates (15) are respectively sleeved at the inner side ends of the two rotating plates (13), two connecting rods (14) are fixedly connected with the two sliding plates (15), the two connecting rods (14) at the top of the sliding frame (4) form a frame, and four corners of the frame respectively slide on the surfaces of four vertical rods (3).
3. The photovoltaic power plant inverter cluster control apparatus of claim 2, wherein:
the side plates (11) and two connecting rods (14) on one side of the inverter (1) are matched to define two rotating plates (13), the distance between the inner side ends of the two rotating plates (13) is smaller than the distance between the outer side ends of the two rotating plates, when the side plates (11) are close to the side face of the shell (2), the side plates (11) push the rotating plates (13) to rotate, and the rotating plates (13) enable the two connecting rods (14) on one side of the inverter (1) to be close to each other.
4. A photovoltaic power plant inverter cluster control apparatus according to claim 3, characterized in that:
the utility model discloses a shell, including shell (2), clamp plate (16), rubber sheet (18) that shell (2) was close to clamp plate (16) are pushed down to clamp plate (16) when pushing clamp plate (16), clamp plate (16) utilize two swash plate (17) to promote two curb plates (11) to be close to shell (2), clamp plate (16) bottom surface is fixed with a plurality of equidistance and arranges side by side to clamp plate (16) bottom surface both sides all are provided with swash plate (17).
5. The photovoltaic power plant inverter cluster control apparatus of claim 4, wherein:
two opposite limiting grooves (19) are formed in the top surface and the bottom surface of the wire frame (8), a movable frame is movably clamped at the top and the bottom of the wire frame (8) through the limiting grooves (19), the movable frame comprises a limiting plate (20) and a pushing plate (21), the limiting plate (20) is positioned at the inner side of the wire frame (8), the pushing plate (21) is positioned at the outer side of the wire frame (8), slide bars (22) which are in sliding fit with the limiting grooves (19) are fixed between the limiting plates (20) and the push plates (21), the top and the bottom of the inner side end face of the power plug (9) are respectively corresponding to the two limiting plates (20), and the two slide plates (15) at the top and the bottom of the front side end of the inverter (1) are respectively corresponding to the two push plates (21) at the top and the bottom of the wire frame (8).
6. The photovoltaic power plant inverter cluster control apparatus of claim 5, wherein:
clamping rods (23) penetrating through two ends of the limiting plates (20) are arranged on two sides of the inside of the wire frame (8), springs (24) are sleeved on the surfaces of the clamping rods (23), the two limiting plates (20) are connected through the springs (24), clamping blocks (25) limiting the centers of the springs (24) are fixed at the centers of the clamping rods (23), cross rods (26) penetrating through the centers of the clamping blocks (25) are fixed on two sides of the inside of the wire frame (8), elastic pieces (27) are sleeved on the surfaces of the cross rods (26), and when a power plug (9) enters the inside of the wire frame (8), the power plug (9) pushes the clamping rods (23) and the clamping blocks (25) to slide on the surfaces of the cross rods (26) through the two limiting plates (20).
7. The photovoltaic power plant inverter cluster control apparatus of claim 6, wherein:
the utility model discloses a power supply, including terminal frame (8), cardboard (28) are all articulated to top and bottom, cardboard (28) both sides face utilizes the torsional spring to be connected with terminal frame (8), two cardboard (28) inboard end corresponds with two limiting plate (20) respectively, be provided with draw-in groove (29) that correspond with cardboard (28) inboard end on limiting plate (20), when power plug (9) and dc-to-ac converter (1) correspond the intercommunication, cardboard (28) inboard end corresponds the buckle inboard at draw-in groove (29), be fixed with the lug that corresponds with cardboard (28) outboard end on limiting plate (20).
8. A photovoltaic power station inverter cluster regulation and control method is characterized in that: the method is applied to the photovoltaic power station inverter cluster control equipment of claim 7, and comprises the following steps:
s1, synchronously rotating a screw (7), wherein the screw (7) and the screw effect at the end part of the clamping plate (6) enable the distance between the clamping plate (6) at the top and the clamping plate (6) at the bottom to be increased, correspondingly placing the inverter (1) at the top of the clamping plate (6) at the bottom, reversely rotating the screw (7), and mutually approaching the clamping plate (6) at the top and the clamping plate (6) at the end part of the screw (7) and the clamping plate (6), and completing preliminary limitation on the inverter (1) by utilizing the clamping of the clamping plate (6);
s2, rotating nuts on the surface of the vertical rod (3), driving the sliding frame (4) to move up and down on the surface of the vertical rod (3) by using the spiral effect of the nuts and the vertical rod (3), limiting the inverter (1) by the sliding frame (4) by using the movable frame (5) and the clamping plate (6), and driving the inverter (1) to move up and down on the inner side of the shell (2) in the moving process by the sliding frame (4), so that the positions of the front and rear end wiring frames (8) of the inverter (1) correspond to the through holes of the sealing plate (10), and respectively plugging an input power supply device and an output power supply device into the inside of the front and rear end wiring frames (8) of the inverter (1) by two power plugs (9);
s3, after direct current generated by the photovoltaic power station is stored through an input power supply device, the input power supply device inputs the direct current into an inverter (1) through a power plug (9), the inverter (1) converts the direct current into frequency-modulation voltage-regulation alternating current, the frequency-modulation voltage-regulation alternating current is transmitted to an output power supply device through another power plug (9), the inverter (1) is externally connected with a cluster monitoring device, and the cluster monitoring device controls and regulates the direct current generated by the photovoltaic power station according to the frequency-modulation voltage-regulation alternating current generated by the inverter (1);
s4, when the shell (2) is impacted in the working process of the inverter (1), and the pressing plate (16) moves downwards due to the impact, the pressing plate (16) moves downwards to drive the two side plates (11) to be gradually close to the shell (2) by using the inclined plate (17), the pressing plate (16) correspondingly presses the rubber sheet (18) in the process of being close to the shell (2), the side plates (11) correspondingly press the elastic plate (12) in the process of being close to the shell (2), and the impact force borne by the pressing plate (16) is absorbed by using the rubber sheet (18) and the elastic plate (12), so that the impact force is prevented from being directly impacted on the surface of the shell (2);
s5, when the side plates (11) are close to the shell (2), the movement of the side plates (11) drives the two rotating plates (13) to rotate, as the side plates (11) limit the outer side ends of the rotating plates (13), the rotating plates (13) utilize the connecting rods (14) to enable the frames at the tops to move downwards, the frames at the bottoms move upwards, the sliding plates (15) at the tops and the bottoms are respectively extruded on the movable frames at the tops and the bottoms of the wiring frames (8), the movable frames drive the limiting plates (20) to be close to the inner side ends of the power plugs (9) through the sliding rods (22), the protruding blocks of the pushing plates (21) squeeze the outer side ends of the clamping plates (28), at the moment, the clamping grooves (29) of the limiting plates (20) are separated from the inner side ends of the clamping plates (28), the elastic force of the elastic pieces (27) drive the sliding rods (22) of the two movable frames to slide at the inner sides of the limiting grooves (19) through the clamping blocks (25) and the clamping rods (23), and the movable frames push the power plugs (9) out of the wiring frames (8) through the limiting plates (20), and the power plugs (9) are separated from the wiring frames (8).
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| CN202311197139.5A CN116937937B (en) | 2023-09-18 | 2023-09-18 | Photovoltaic power station inverter cluster regulation and control method and device |
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| CN202311197139.5A CN116937937B (en) | 2023-09-18 | 2023-09-18 | Photovoltaic power station inverter cluster regulation and control method and device |
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| CN116937937B (en) | 2024-01-09 |
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