CN114629226A - Automatic power grid access type power generation vehicle capable of achieving switching without power outage - Google Patents
Automatic power grid access type power generation vehicle capable of achieving switching without power outage Download PDFInfo
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- CN114629226A CN114629226A CN202210001904.0A CN202210001904A CN114629226A CN 114629226 A CN114629226 A CN 114629226A CN 202210001904 A CN202210001904 A CN 202210001904A CN 114629226 A CN114629226 A CN 114629226A
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- 238000010248 power generation Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 claims abstract description 43
- 230000008569 process Effects 0.000 claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000006872 improvement Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 20
- 239000000969 carrier Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
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Abstract
The invention discloses a power grid automatic access type power generation vehicle without power outage switching, which comprises: the control module is used for controlling and monitoring the process of switching the automatic access of the power generation vehicle without power failure; the power supply module is used for replacing a mains supply to supply power for a user and supplying power for the generator car; the switching module is used for controlling the uninterrupted switching of the commercial power supply and the power supply module; the access module is used for connecting the switching module and the distribution box to form a power supply switching circuit; the access module comprises a mobile connection carrier, an image data acquisition device is arranged on the mobile connection carrier, and the mobile connection carrier is connected with the switching module and the control module through a lead. According to the invention, through the arrangement and improvement of the control module, an automatic device and a connecting tool are adopted, the uninterrupted switching device and the distribution box of the power generation vehicle can be automatically connected under the preset condition, the manual direct contact is avoided, and the accident is avoided.
Description
Technical Field
The invention relates to the field of power grid maintenance, in particular to a power grid automatic access type power generation vehicle capable of switching without power failure.
Background
The electricity consumption of daily life is mostly distributed to residents' homes through power grids and through various power distribution stations. In order to ensure the safety of the user's electricity consumption, it is necessary to periodically perform an inspection test on the connection portion of the user's electricity consumption and the distribution network while performing a repair on the portion where the fault occurs. In the traditional maintenance process, the power grid power supply is replaced by the power generation car power supply accessed by the old power generation car access equipment or the double-switch-blade power generation car access equipment, so that the power consumption of the power grid is cut off, and the safety of related personnel is ensured. However, in the process of switching the power supply of the power grid by the access equipment of the old-fashioned power generation car, the power failure time is about one hour, the switching time is long, and the discharging risk exists; and to double-switch blade formula generator car access apparatus, maintenance personal need dispose a large amount of double-switch blade intervals in advance, lack insulating isolation, the user also can experience the influence that has a power failure. Therefore, the access equipment switched without power failure needs to be developed, so that a user can not feel the influence of power failure in the power grid maintenance process, the electric appliance can still be used, and the maintenance safety is higher.
The 'non-power-outage access and cut-out device for the generator car' disclosed in Chinese patent literature, the publication number of which is CN113593940A, the publication date of which is 2021-11-02, comprises a wiring component and a switching component, wherein the wiring component comprises a shell, a bus interface arranged on the shell, a bus power supply interface arranged on the shell and an external power supply interface arranged on the shell; the switching component is arranged in the shell and comprises a conductive piece, a switching rod contacted with the conductive piece and a sliding switch arranged on the switching rod; the uninterrupted power access and cut-out device of the generator car can enable the power failure time caused by the power access of the generator car to be within 3 seconds, and realizes the simplification operation of the access process, so that the operation complexity of personnel is reduced, the feeling of a load end on the power failure time is reduced, and the uninterrupted power access similar to reclosing is achieved in time. But still need manual operation at the in-process of being connected with the block terminal, can't stop the emergence of accidents such as electric shock among the manual contact process.
Disclosure of Invention
The invention provides a power grid automatic access type power generation vehicle capable of switching without power failure, which adopts an automation device and can automatically connect a power generation vehicle switching device without power failure and a distribution box under a preset condition, so that manual direct contact is avoided, and accidents are avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides an automatic access formula power generation car of electric wire netting that does not have a power failure to switch, includes: the control module is used for controlling and monitoring the process of switching the automatic access of the power generation vehicle without power failure; the power supply module is used for replacing a mains supply to supply power for a user and supplying power for the generator car; the switching module is used for controlling the uninterrupted switching of the commercial power supply and the power supply module; the access module is used for connecting the switching module and the distribution box to form a power supply switching circuit; the access module comprises a mobile connection carrier, an image data acquisition device is arranged on the mobile connection carrier, and the mobile connection carrier is connected with the switching module and the control module through a lead.
The power supply module is a source for providing electric energy on the power generation car, and the switching module is an important part of the automatic switching-in power generation car, which can realize uninterrupted switching and can switch connection between a user load and a power supply of a power grid or between the user load and the power supply of the power generation car. The control module can control the work of the switching module through a preset program; the access module is a key part for connecting the generator car and the distribution box and comprises a connecting arm and a movable connecting carrier; after the power generation car is stopped near the target distribution box, the mobile connection carrier in the access module can freely move to the front of the distribution box to be connected with a circuit, and the mobile connection carrier can be applied to places where the power generation car cannot enter, such as a narrow roadway, a soft mud land and the like, so that the automatic connection device has application value.
Preferably, the control module, the power module, the switching module and the mobile connection carrier are sequentially arranged in a carriage of the power generation vehicle. The power generation car has the advantages that all functions required by the automatic access distribution box for completing the uninterrupted power switching are integrated on the carriage of the power generation car, so that the process of switching the power supply without the interruption can be automatically completed through the power generation car only by driving the power generation car to the position near the power grid and the distribution box which need to be overhauled.
Preferably, the switching module comprises a switch K3, and one end of the switch K3 is connected with the power module of the generator car through a voltage input end e; the other end of the switch K3 is connected with the other end of the switch K2 and is connected with a bus voltage input end b through a switching voltage output end c; the control ends of the switch K2 and the switch K3 are connected with a control chip at the same time; one end of the switch K2 is connected with a power grid voltage input end a through a voltage input end d; the control chip is connected with the control module.
In the invention, a power grid voltage input end a, a bus voltage input end b, a user load and an air switch K1 are arranged in a distribution box; the air switch K1 controls the on-off of a circuit in the distribution box and is connected between the power grid voltage input end a and the bus voltage input end b; the customer load is connected in parallel to the bus. In the cut-in module, when the switch K2 and the switch K3 are closed simultaneously, the grid power supply and the generator car power supply can supply power to the user load simultaneously, so that the operation of closing the two switches simultaneously is added in the process of switching the single closed switch K2 and the single closed switch K3, and the process of power failure of the user load does not exist in the switching process of power supply of the grid power supply and power supply of the generator car power supply.
Preferably, the method further comprises a non-power-off switching method, which comprises the following steps:
s1, supplying power to the bus of the distribution box by the power grid power supply and the power supply module through the power supply switching circuit;
s2, cutting off the connection between the power supply of the power grid and the bus in the power supply switching circuit, and supplying power to the bus by the power supply module;
s3, re-establishing the connection between the power supply of the power grid and the bus in the power supply switching circuit, and cutting off the connection between the power supply module and the bus;
and S4, reestablishing the connection between the power grid and the bus in the distribution box and disconnecting the power supply switching circuit and the distribution box.
In the invention, an air switch K1 in the distribution box is closed in an initial state, a power grid power supply is directly transmitted to a bus in the distribution box to supply power to a user load, and after a power supply switching circuit is accessed, a transmission path can be changed to enable the power grid power supply to supply power to the user load through the power supply switching circuit; meanwhile, the power can be synchronously supplied to the user load through the power supply of the power generation car; then, the connection between the power supply of the power grid and the user load on the bus is cut off, only the power supply of the power generation car is left to supply power to the user load, and in the whole process of switching from the power supply of the power grid to the power supply of the power generation car, electric energy always ensures the normal work of the user load; the process of switching from the power supply of the generator car to the power supply of the power grid is just opposite to that of the power supply of the generator car, so that the whole process of switching the power supply without power outage is completed.
Preferably, the mobile connection carrier is provided with a plurality of access rods, the tail ends of the access rods are provided with electric access devices, and wires are arranged in the access rods to connect the mobile connection carrier and the electric access devices. Still be provided with multi-functional operation hand on the removal connection carrier for open or close the block terminal and maintain and handle power-generating cars and block terminal.
The invention selects the mobile connecting carrier as a medium for connecting the distribution box and the switching module, because of the flexibility of the mobile connecting carrier, the mobile connecting carrier can reach the area which can not be reached by the generator car under the condition of providing the wire connection with enough length, and simultaneously, the rotating angle and the telescopic length can be adjusted by moving the access rod on the mobile connecting carrier, so that the electric access device can be accurately connected with the object to be connected. In addition, a plurality of mobile connecting carriers can be arranged in the carriage space at the same time, so that different power grid maintenance targets of adjacent areas can be automatically accessed at the same time, and the improvement of the working efficiency is facilitated.
Preferably, the electric access device comprises a hollow column body and a conductive block fixed inside the column body; a left clamping mechanism and a right clamping mechanism which are symmetrical relative to the central axis of the column body are respectively fixed on the two sides of the column body; the left clamping mechanism comprises a left transmission rod, one end of the left transmission rod is hinged with a left sliding block, the other end of the left transmission rod is hinged with a left clamping arm, and the left sliding block can slide in a left sliding groove fixed with the cylinder; the structure of the right clamping mechanism is the same as that of the left clamping mechanism; the diameter of one side, facing the clamping arm, of the conductive block is the same as the inner diameter of the hollow column, and the diameter of one side, far away from the clamping arm, of the conductive block is smaller than the inner diameter of the hollow column and is connected with a lead.
The invention optimally designs the electric access device by referring to the specific structure of the connecting tool used manually in the traditional mode, and the electric access device can be operated and controlled manually in the control module and also can be controlled by a preset program. The range in which the left clamping mechanism, the right clamping mechanism and the conductive block are looped together is the range in which the object to be connected is finally located, and the left clamping mechanism, the right clamping mechanism and the conductive block can gradually approach and clamp and fix the object to be connected together through the relative sliding of the sliding block and the sliding groove, so that the conductive connection between the electric access device and the object to be connected is completed. The outer layer of the hollow cylinder and the whole clamping mechanism are insulated.
Preferably, the image data acquisition device comprises a camera, a distance measuring and positioning instrument and a force sensor, and the image data acquisition device transmits acquired images and data to the control module.
In the invention, an image data acquisition device is arranged at the tail end of an electric access device; the camera can shoot images near the electric access device, and the images are transmitted to the control module to be displayed and stored, so that an operation object can be identified; the distance measuring and positioning instrument can measure the distance between the distribution box and the electric access device, ensures the fine operation of distance control on an object to be connected in the access operation process, and avoids the collision between the distribution box component and the electric access device caused by distance errors; force transducer sets up in arm lock department, can real-time detection fixture and conductive block treat the effort size that connects the object and apply, prevent that too big destruction or the effort undersize of effort to connecting circuit from resulting in treating the breaking away from of connecting the object.
The invention has the following beneficial effects: the control module is arranged, and an automatic device is adopted, so that the uninterrupted switching device and the distribution box of the power generation car can be automatically connected under a preset condition, manual direct contact is avoided, and accidents are avoided; the standby connecting arm and the standby access rod are arranged for connection and maintenance, and the image data acquisition device is also arranged for monitoring the state of the whole uninterrupted switching process, so that faults and accidents can be timely processed; be provided with and remove connection platform and carry out the connection operation of electric wire netting, can remove and insert near the electric wire netting of waiting to overhaul that the power generation car can't reach the region, promoted automatic access device's practicality.
Drawings
FIG. 1 is a block diagram of a generator car of the present invention;
FIG. 2 is a schematic diagram of the present invention for switching power supplies without power outage;
FIG. 3 is a schematic view of a mobile linking vehicle according to the present invention;
fig. 4 is a block diagram of the connection arm end or access arm end electrical access device of the present invention;
fig. 5 is a schematic view of the electrical access device of the present invention connected to an object to be connected;
FIG. 6 is a schematic view of the telescoping of the access rod of the present invention;
FIG. 7 is a flow chart of a non-power-off switching method of the present invention;
in the figure: 1. a control module; 2. a power supply module; 3. a switching module; 4. an access module; 11. an operation table; 12. an image display screen; 13. a dynamic parameter display screen; 21. a generator set; 31. a switching device without power failure; 41. a power grid connecting arm; 42. a bus connecting arm; 43. a spare connecting arm; 50. a hollow cylinder; 51. a conductive block; 61. a camera; 62. a distance measuring and positioning instrument; 63. a left sliding groove; 64. a right sliding groove; 71. a left slider; 72. a left drive link; 73. a left clamp arm; 74. a right slider; 75. a right drive link; 76. a right clamp arm; 8. objects to be connected; 9. moving the connecting carrier; 91. a wire; 92. a crawler belt; 93. a movable base; 94. a rotating plate; 95. a grid access pole; 96. a bus access rod; 97. a standby access rod; 98. a rotating shaft; 901. a loop bar; 902. a slide bar; 903. and a limiting plate.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1, an automatic power grid access type power generation vehicle without power cut switching includes: the control module 1 is used for controlling and monitoring the process of switching the automatic access of the power generation vehicle without power failure; the power module 2 uses a generator to replace a mains supply to supply power for users and supplies power for a generator car; the switching module 3 is used for controlling the uninterrupted switching of the commercial power supply and the power supply module; the access module 4 is used for connecting the switching module and the distribution box to form a power supply switching circuit; the access module 4 comprises a mobile connection carrier 9, an image data acquisition device is arranged on the mobile connection carrier 9, and the mobile connection carrier is connected with the switching module 3 and the control module 1 through a lead 91. The access module 4 further comprises a plurality of connecting arms arranged at the top of the carriage, and wires are arranged in the connecting arms and can be connected with the switching module and an electric access device at the tail ends of the connecting arms.
As shown in fig. 1, the carriage of the automatic access type power generation car is provided with a control module 1, a power module 2, a switching module 3 and an access module 4 in sequence, and the access module comprises a mobile connection carrier 9 and a connecting arm arranged above the carriage. The power generation car has the advantages that all functions required by the automatic access distribution box for completing the uninterrupted power switching are integrated on the carriage of the power generation car, so that the process of switching the power supply without the interruption can be automatically completed through the power generation car only by driving the power generation car to the position near the power grid and the distribution box which need to be overhauled.
An operation table 11 is arranged in the control module 1, and an image display screen 12 and a dynamic parameter display screen 13 are arranged above the operation table 11 in parallel; the operation panel is respectively connected with the power module, the switching module and the access module. A generator set 21 is arranged in the power supply module; the switching module is provided with a non-power-off switching device 31.
The access module 4 comprises a power grid connecting arm 41, a bus connecting arm 42 and a standby connecting arm 43; wherein two ends of the power grid connecting arm are respectively connected with a voltage input end d and a power grid voltage input end a; and two ends of the bus connecting arm are respectively connected with the switching voltage output end c and the bus voltage input end b. The tail end of the standby connecting arm can be provided with an electric access device, and when one of the power grid connecting arm or the bus connecting arm fails, the standby connecting arm can be used as a substitute connecting arm to perform switching circuit connection; in addition, the multifunctional electric generator can be set to other functional devices such as an operating arm and the like, and a distribution box, a maintenance distribution box, a generator car and the like can be opened or closed.
As shown in fig. 2, the switching module 3 includes a switch K3, and one end of the switch K3 is connected to the power module of the generator car through a voltage input terminal e; the other end of the switch K3 is connected with the other end of the switch K2 and is connected with a bus voltage input end b through a switching voltage output end c; the control ends of the switch K2 and the switch K3 are simultaneously connected with the control chip; one end of the switch K2 is connected with the grid voltage input end a through the voltage input end d; the control chip is connected with the control module. In addition, in the distribution box part, an air switch K1 controls the connection and disconnection between a power grid voltage input end a and a bus, and a plurality of different loads are connected to the bus.
As shown in fig. 3, a wire 91 is arranged on the mobile connection carrier 9, the switching module and the control module are connected through the wire 91, the wire 91 is connected with the mobile base 93, a control circuit is arranged in the mobile base 93 and is responsible for controlling the whole mobile connection carrier, a crawler 92 is arranged at the bottom of the mobile base 93, a rotating shaft 98 is arranged above the mobile base and is rotatably connected with the rotating plate 94 through the rotating shaft 98, a rotatable power grid access rod 95, a bus access rod 96 and a standby access rod 97 are sequentially arranged on the rotating plate 94, all the three access rods can be rotated in a telescopic manner, electric access devices are arranged at the tail ends of the power grid access rod 95 and the bus access rod 96, and a multifunctional manipulator is arranged at the tail end of the standby access rod 97.
As shown in fig. 4, the electrical access device includes a hollow cylinder 50, two sides of the hollow cylinder 50 are fixedly connected with a left sliding groove 63 and a right sliding groove 64, respectively, the left sliding groove 63 is provided with a left sliding block 71, the left sliding block 71 is hinged with one end of a left transmission rod 72, and the other end of the left transmission rod 72 is hinged with a left clamping arm 73; a right sliding block 74 is arranged on the right sliding groove 64, the right sliding block 74 is hinged with one end of a right transmission rod 75, and the other end of the right transmission rod 75 is hinged with a right clamping arm 76; a conductive block 51 is arranged inside the hollow column 50; the diameter of the large-diameter end of the conductive block 51 is the same as the inner diameter of the hollow column body 50 and is used for being connected with a power grid voltage input end a in a power distribution box, and the diameter of the small-diameter end of the conductive block 51 is smaller than the inner diameter of the hollow column body 50 and is connected with a first voltage input end d through a wire.
The electric access device comprises a hollow column body 50 and a conductive block 51 fixed in the column body; a left clamping mechanism and a right clamping mechanism which are symmetrical relative to the central axis of the column body are respectively fixed on the two sides of the column body; the left clamping mechanism comprises a left transmission rod 72, one end of the left transmission rod is hinged with a left sliding block 71, the other end of the left transmission rod is hinged with a left clamping arm 73, and the left sliding block can slide in a left sliding groove 63 fixed with the column body; the right clamping mechanism comprises a right transmission rod 75, one end of the right transmission rod is hinged with a right sliding block 74, the other end of the right transmission rod is hinged with a right clamping arm 76, and the right sliding block can slide in a right sliding groove 64 fixed with the cylinder; the diameter of one side of the conductive block facing the clamping arm is the same as the inner diameter of the hollow column body, and the conductive block can be connected and conducted with a power grid voltage input end a; the diameter of one side of the conductive block, which is far away from the clamping arm, is smaller than the inner diameter of the hollow cylinder and is connected with a lead.
The image data acquisition device is provided with a camera 61, a distance measuring locator 62 and a force sensor, and transmits acquired images and data to the control module.
As shown in fig. 6, which is a schematic view of a telescopic manner of an access rod, a sliding rod 902 capable of sliding along a radial direction of the sleeve rod is arranged in the sleeve rod 901, and a limiting plate 903 is arranged on the sleeve rod and used for limiting a position of the sliding rod 902, and the sliding rod is completely inside the sleeve rod when the access rod is shortest; the access rod is gradually lengthened as the sliding rod slides outwards continuously. The sliding rod can slide by a distance of two thirds of the length of the sliding rod, namely the sliding rod has the length of two thirds exposed outside the loop bar. The telescopic mode of the connecting arm is the same as that of the access rod.
The power supply module is a source for providing electric energy on the power generation car, and the switching module is an important part of the automatic switching-in power generation car, which can realize uninterrupted switching and can switch connection between a user load and a power supply of a power grid or between the user load and the power supply of the power generation car. The control module can control the work of the switching module through a preset program; the access module is a key part for connecting the generator car and the distribution box and comprises a connecting arm and a movable connecting carrier; after the power generation car is stopped near the target distribution box, the mobile connection carrier in the access module can freely move to the front of the distribution box to be connected with a circuit, and the mobile connection carrier can be applied to places where the power generation car cannot enter, such as a narrow roadway, a soft mud land and the like, so that the automatic connection device has application value.
In the invention, a power grid voltage input end a, a bus voltage input end b, a user load and an air switch K1 are arranged in a distribution box; the air switch K1 controls the on-off of a circuit in the distribution box and is connected between the power grid voltage input end a and the bus voltage input end b; the customer load is connected in parallel to the bus. In the cut-in module, when the switch K2 and the switch K3 are closed simultaneously, the grid power supply and the generator car power supply can supply power to the user load simultaneously, so that the operation of closing the two switches simultaneously is added in the process of switching the single closed switch K2 and the single closed switch K3, and the process of power failure of the user load does not exist in the switching process of power supply of the grid power supply and power supply of the generator car power supply.
The invention selects the mobile connecting carrier as a medium for connecting the distribution box and the switching module, because of the flexibility of the mobile connecting carrier, under the condition of providing a lead with enough length for connection, the mobile connecting carrier can reach an area which cannot be reached by the generator car, and meanwhile, the rotating angle and the telescopic length can be adjusted by moving the access rod on the mobile connecting carrier, so that the electric access device can be accurately connected with an object to be connected. Meanwhile, the mobile connection carrier is further provided with a rotating shaft and a rotating plate, the height can be adjusted by rotating the rotating plate, and the height range which can be reached by the electric access device is enlarged. In addition, a plurality of mobile connecting carriers can be arranged in the carriage space at the same time, so that different power grid maintenance targets of adjacent areas can be automatically accessed at the same time, and the improvement of the working efficiency is facilitated.
The invention can also connect the switch module on the distribution box and the generator car through the connecting arm, stop the car at a certain distance away from the target to be overhauled, utilize the characteristic that the connecting arm can stretch out and draw back and rotate, extend the connecting arm to the front of the target to overhaul and connect directly; therefore, the non-contact uninterrupted power supply switching operation is realized through the connecting arm, the safety of maintenance personnel can be ensured, and the accuracy of access operation can also be ensured. In addition, a connecting arm for standby is arranged outside, the tail end of the standby connection ratio is designed in a multifunctional mode, the connecting arm can be used as a standby for replacing a connecting arm of a power grid and a connecting arm of a bus, and can also be used as equipment with a maintenance detection function, and mechanical automation operation of the whole process is achieved.
The invention optimally designs the electric access device by referring to the specific structure of the connecting tool used manually in the traditional mode, and the electric access device can be operated and controlled manually in the control module and also can be controlled by a preset program. The range in which the left clamping mechanism, the right clamping mechanism and the conductive block are looped together is the range in which the object to be connected is finally located, and the left clamping mechanism, the right clamping mechanism and the conductive block can gradually approach and clamp and fix the object to be connected together through the relative sliding of the sliding block and the sliding groove, so that the conductive connection between the electric access device and the object to be connected is completed. The outer layer of the hollow cylinder and the whole clamping mechanism are insulated.
In the invention, an image data acquisition device is arranged at the tail end of an electric access device; the camera can shoot images near the electric access device, and the images are transmitted to the control module to be displayed and stored, so that an operation object can be identified; the distance measuring and positioning instrument can measure the distance between the distribution box and the electric access device, ensures the fine operation of distance control on an object to be connected in the access operation process, and avoids the collision between the distribution box component and the electric access device caused by distance errors; force transducer sets up in arm lock department, can real-time detection fixture and conductive block treat the effort size that connects the object and apply, prevent that too big destruction or the effort undersize of effort to connecting circuit from resulting in treating the breaking away from of connecting the object.
As shown in fig. 7, the power generation car of the present invention further includes a non-power-off switching method, including:
s1, supplying power to the bus of the distribution box by the power grid power supply and the power supply module through the power supply switching circuit; opening the distribution box through a standby access rod or a standby connecting arm; when the switch K2 is open, the voltage input d is connected to the grid voltage input a, and when the switch K3 is open, the bus voltage output c is connected to the bus voltage input b; the switch K2 is then closed and the air switch K1 is opened after the bus and grid voltages are connected through the switching module.
S2, cutting off the connection between the power supply of the power grid and the bus in the power supply switching circuit, and supplying power to the bus by the power supply module; on the basis of the closing of the switch K2, the switch K3 is closed to enable the power grid power supply and the generator car power supply to be connected with the bus through the switching module at the same time, and then the switch K2 is opened to enable the generator car power supply to be connected with the bus independently.
In the whole process, the power supply of a user load is carried out through three stages of power grid power supply, power grid power supply and generator car power supply simultaneous power supply and generator car power supply, and the distribution box is isolated from the power supply circuit after the switching is completed simultaneously, so that the electric shock phenomenon cannot occur during the overhauling, the safety is higher, and the power consumption of the user is not influenced in the whole switching process.
S3, re-establishing the connection between the power supply of the power grid and the bus in the power supply switching circuit, and cutting off the connection between the power supply module and the bus; after the overhaul is finished, the power grid power supply needs to be reconnected, and the switch K2 is closed under the condition that the switch K3 is closed, so that the power grid power supply and the power generation vehicle power supply power to the user load position of the bus at the same time through the switching module; after stabilization, the switch K3 is turned off to allow the grid power supply to supply power to the user load individually through the switching module.
And S4, reestablishing the connection between the power grid and the bus in the distribution box and disconnecting the power supply switching circuit and the distribution box. On the basis of S3, closing the air switch K1 to enable the power grid power supply and the user load on the bus to be connected through two paths of the air switch and the switching module at the same time; after the power supply is stable, the switch K2 is switched off, so that the power supply of the power grid can supply power through the air switch K1 alone.
In the invention, an air switch K1 in the distribution box is closed in an initial state, a power grid power supply is directly transmitted to a bus in the distribution box to supply power to a user load, and after a power supply switching circuit is accessed, a transmission path can be changed to enable the power grid power supply to supply power to the user load through the power supply switching circuit; meanwhile, the power can be synchronously supplied to the user load through the power supply of the power generation car; then, the connection between the power supply of the power grid and the user load on the bus is cut off, only the power supply of the power generation car is left to supply power to the user load, and in the whole process of switching from the power supply of the power grid to the power supply of the power generation car, electric energy always ensures the normal work of the user load; the process of switching from the power supply of the power generation car to the power supply of the power grid is just opposite to that of the power supply of the power generation car, so that the whole process of switching the power supply without power outage is completed.
The first embodiment is as follows: in the embodiment, the distribution box is opened through an operator arranged on the standby connecting arm, and the switching module is connected with the power grid voltage input end a through the power grid connecting arm; the switching module is connected with the bus voltage input end b through the bus connecting arm, and is connected with an object to be connected through an electric access device arranged at the tail end of the connecting arm to form a complete power supply switching circuit.
Before switching without power outage, a maintenance person drives the power generation car to the position near a distribution box to be overhauled, selects a proper low point to stop the power generation car and starts to access the power generation car. The maintenance personnel can observe the state of the whole access process at the control module and can also switch to a manual mode for operation. The top of the operating platform in the control module is connected with an image display screen and a dynamic parameter display screen in parallel, so that maintenance personnel can manually verify whether the whole access process is wrong on the image display screen, and can playback images collected by the camera in the access process. In addition, the values of all parameters except the image collected in the access process can be displayed on a dynamic parameter display screen, so that maintenance personnel can conveniently judge the working state. The display screen can be a touch display screen, and any part in the display screen can be clicked to acquire further detailed data of the content displayed by the part so as to judge the automatic access operation in detail. The three connecting arms are connected with the operating platform, and the operating platform can control the telescopic rotation of the connecting arms and the work of the electric access device at the tail ends of the connecting arms and other functional devices.
Fig. 5 is a schematic process diagram of the grid voltage input line or the user load side bus connected to the electrical access device at the end of the connecting arm in the embodiment, where the object 8 to be connected is the grid voltage input line or the user load side bus.
Firstly, the left sliding block slides to the large-diameter end of the conducting block along the left sliding groove to drive the left driving rod and the left clamping arm to move; the right sliding block and the left sliding block synchronously slide to the large-diameter end of the conducting block, so that the right transmission rod and the right clamping arm also move together; after the left sliding block and the right sliding block move to the farthest distance, the left transmission rod rotates around the left sliding block to the side far away from the hollow column body, and the right transmission rod rotates around the right sliding block to the side far away from the hollow column body, so that the closed positions of the left clamping arm and the right clamping arm are separated.
Then, the openings of the left clamping arm and the right clamping arm are aligned to a power grid voltage input line or a user load side bus, and the openings and an object to be connected are positioned and matched through a camera and a distance measuring and positioning instrument. The connecting arm drives the electric access device to continue advancing, an object to be connected is surrounded in the range of the left clamping arm and the right clamping arm, then the left clamping arm and the right clamping arm are closed again by controlling the rotation of the left transmission rod and the right transmission rod, and the circling of the object to be connected is completed.
And finally, after the left and right clamping arms are closed again, the left and right sliding blocks are controlled to slide back to the original positions, the left and right clamping arms are driven to enable the object to be connected to be close to the large-diameter end of the conductive block gradually, and after the object to be connected is contacted with the large-diameter end of the conductive block, data of the force sensor are detected gradually, so that the conductive block and the clamping arms apply acting force to the object to be connected within a preset stress range, and the object to be connected is fixed to communicate with the whole circuit.
For the operation table, a key and an information input area for controlling the operation of the whole access process are designed on the operation table, and when a special distribution box is met or maintenance work with extra requirements is carried out, an automatic access mode can be converted into a manual remote operation mode, so that remote non-contact manual operation is carried out. And an operator at the control module can manually operate the connecting arm on the operating platform according to the information reflected by the two display screens. The handle or the rocker is used for controlling the expansion and the rotation of the connecting arm, and different keys are used for realizing the function of different functional devices at the tail end of the connecting arm.
The second embodiment: on the basis of the first embodiment, a mobile connecting carrier is further arranged in the carriage, and the function of a power grid connecting rod on the mobile connecting carrier is the same as that of the power grid connecting arm in the first embodiment; the function of the bus access rod is the same as that of the bus connecting arm; the function of the standby access lever is the same as the standby connecting arm. The wires on the mobile connection carrier are internally provided with a plurality of mutually independent connecting wires which are respectively used for information transmission of the control module and the mobile base, connection between the power grid access rod and the voltage input end d, connection between the bus access rod and the bus voltage output end c and power supply of the power module to the mobile connection carrier.
When the power grid position needing to be overhauled is remote so that the generator car cannot reach nearby, and the length of the connecting arm cannot reach the distribution box, the mobile connecting carrier can be selected as a connecting medium, the carrier moved by the crawler can adapt to most terrains, and can enter places where vehicles and personnel are difficult to move, such as narrow roadways and soft mud lands, so that access and overhaul operations are performed. When the mobile connection carrier runs near a destination or around a distribution box, the image data acquisition device on the mobile base can transmit near real-time images and specific conditions back to the control module and display the images on the image display screen for the reference of maintenance personnel. And then the transmission plate rotates around the rotating shaft to adjust the height, and simultaneously the three access rods also rotate to adjust the position of the electric access device at the tail end of the access rod, so that the height of the electric access device is consistent with that of an object to be connected. The specific operation process is the same as that of the first embodiment, the movable connection carrier can be automatically connected with the distribution box, and the distribution box can be connected or maintained through manual control of a maintenance worker on the control module in the power generation car.
In addition, can be provided with a plurality of removal connection carriers in the carriage, when a plurality of block terminals that need to overhaul and maintain exist in a slice region, if use the linking arm to carry out the different point switching operation, can only carry out power switching and maintenance one by one in order, even have a plurality of maintenance personal also can't maintain different block terminals simultaneously. And when using the removal to connect the carrier, because the home range that removes the connection carrier only receives the influence of connecting wire length, consequently when a power-generating car carries a plurality of removal connection carriers, can operate a plurality of removal connection carriers according to actual conditions and go to different block terminal departments, can carry out the switching operation that does not cut off the power supply to a plurality of block terminals simultaneously through predetermined procedure, after accomplishing the switching operation that does not cut off the power supply of power supply, maintainer can divide into groups to go to different block terminal departments and maintain the inspection work, can improve work efficiency doubly.
The above embodiments are described in order to explain and illustrate the present invention in detail, and should not be construed as limiting the invention in any way, and any modifications, equivalents, and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides an automatic formula power generation car that inserts of electric wire netting that does not have a power failure to switch which characterized in that includes:
the control module is used for controlling and monitoring the process of switching automatic access of the power generation car without power failure;
the power supply module is used for replacing a mains supply to supply power for a user and supplying power for the generator car;
the switching module is used for controlling the uninterrupted switching of the commercial power supply and the power supply module;
the access module is used for connecting the switching module and the distribution box to form a power supply switching circuit;
the access module comprises a mobile connection carrier, an image data acquisition device is arranged on the mobile connection carrier, and the mobile connection carrier is connected with the switching module and the control module through a lead.
2. The non-power-outage switching power grid automatic access type power generation vehicle as claimed in claim 1, wherein the control module, the power supply module, the switching module and the mobile connection carrier are sequentially arranged in a compartment of the power generation vehicle.
3. The non-power-outage switching power grid automatic access type power generation vehicle as claimed in claim 1, wherein the switching module comprises a switch K3, one end of the switch K3 is connected with a power generation vehicle power supply module through a voltage input end e; the other end of the switch K3 is connected with the other end of the switch K2 and is connected with a bus voltage input end b through a switching voltage output end c; the control ends of the switch K2 and the switch K3 are simultaneously connected with a control chip; one end of the switch K2 is connected with a power grid voltage input end a through a voltage input end d; the control chip is connected with the control module.
4. A non-stop switching grid automatic access power generation vehicle according to claim 1, 2 or 3, comprising a non-stop switching method comprising:
s1, supplying power to the bus of the distribution box by the power grid power supply and the power supply module through the power supply switching circuit;
s2, cutting off the connection between the power supply of the power grid and the bus in the power supply switching circuit, and supplying power to the bus by the power supply module;
s3, re-establishing the connection between the power supply of the power grid and the bus in the power supply switching circuit, and cutting off the connection between the power supply module and the bus;
and S4, reestablishing the connection between the power grid and the bus in the distribution box and disconnecting the power supply switching circuit and the distribution box.
5. The non-power-off switching power grid automatic access type power generation vehicle as claimed in claim 1, wherein the mobile connection carrier is provided with a plurality of access rods, the ends of the access rods are provided with electric access devices, and wires are arranged inside the access rods to connect the mobile connection carrier and the electric access devices.
6. The non-power-outage switching power grid automatic access type power generation vehicle as claimed in claim 5, wherein the power access device comprises a hollow column body and a conductive block fixed inside the column body; a left clamping mechanism and a right clamping mechanism which are symmetrical relative to the central axis of the column body are respectively fixed on the two sides of the column body; the left clamping mechanism comprises a left transmission rod, one end of the left transmission rod is hinged with a left sliding block, the other end of the left transmission rod is hinged with a left clamping arm, and the left sliding block can slide in a left sliding groove fixed with the cylinder; the structure of the right clamping mechanism is the same as that of the left clamping mechanism; the diameter of one side, facing the clamping arm, of the conductive block is the same as the inner diameter of the hollow column, and the diameter of one side, far away from the clamping arm, of the conductive block is smaller than the inner diameter of the hollow column and is connected with a lead.
7. The uninterruptible power switching power grid automatic access power generation vehicle as claimed in claim 5, wherein a multifunctional manipulator is further disposed on the mobile connection carrier for opening or closing the power distribution box and maintaining and processing the power generation vehicle and the power distribution box.
8. The non-power-off switching power grid automatic access type power generation vehicle as claimed in claim 1, wherein the image data acquisition device comprises a camera, a distance measuring and positioning instrument and a force sensor, and the image data acquisition device transmits acquired images and data to the control module.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111340861 | 2021-11-12 | ||
| CN2021113408610 | 2021-11-12 |
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| CN114629226A true CN114629226A (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210001904.0A Pending CN114629226A (en) | 2021-11-12 | 2022-01-04 | Automatic power grid access type power generation vehicle capable of achieving switching without power outage |
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| CN (1) | CN114629226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117277130A (en) * | 2023-09-21 | 2023-12-22 | 无锡达瑞锋新能源科技发展有限公司 | Distribution network fault rush-repair scheduling equipment |
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| CN112713646A (en) * | 2020-12-24 | 2021-04-27 | 江苏方程电力科技有限公司 | Uninterrupted access system of emergency power supply and access control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108767736A (en) * | 2018-06-08 | 2018-11-06 | 山东鲁能智能技术有限公司 | Substation's livewire work conducting wire mending system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117277130A (en) * | 2023-09-21 | 2023-12-22 | 无锡达瑞锋新能源科技发展有限公司 | Distribution network fault rush-repair scheduling equipment |
| CN117277130B (en) * | 2023-09-21 | 2024-04-19 | 国网山东省电力公司青岛市黄岛区供电公司 | Distribution network fault rush-repair scheduling equipment |
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