CN117293701A - Novel intelligent new forms of energy equipment that converges of multi-functional - Google Patents
Novel intelligent new forms of energy equipment that converges of multi-functional Download PDFInfo
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- CN117293701A CN117293701A CN202311236515.7A CN202311236515A CN117293701A CN 117293701 A CN117293701 A CN 117293701A CN 202311236515 A CN202311236515 A CN 202311236515A CN 117293701 A CN117293701 A CN 117293701A
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- circuit breaker
- gas tank
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- 230000007246 mechanism Effects 0.000 claims abstract description 71
- 239000012212 insulator Substances 0.000 claims description 120
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000004146 energy storage Methods 0.000 description 16
- 238000010248 power generation Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910018503 SF6 Inorganic materials 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/005—Electrical connection between switchgear cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0356—Mounting of monitoring devices, e.g. current transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/0358—Connections to in or out conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
- H02B13/045—Details of casing, e.g. gas tightness
-
- 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
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/80—Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to the technical field of power insulation equipment, in particular to novel multifunctional intelligent new energy converging equipment. According to some embodiments of the invention, the isolating switch mechanism and the circuit breaker mechanism are arranged outside the gas tank, namely, the isolating switch and the circuit breaker can be operated to be switched on and off outside, and the isolating switch mechanism and the circuit breaker mechanism are convenient to check and maintain, so that the volume of the gas tank is reduced, and the strength and the sealing performance of the gas tank are improved.
Description
Technical Field
The invention relates to the technical field of power insulation equipment, in particular to novel multifunctional intelligent new energy converging equipment.
Background
In wind power generation, as the wind power plant collection line is formed by mixing a buried cable and an overhead cable, the space between the fan and the collection line is the buried cable, insulation at the cable connector is easy to be reduced due to the reasons of environment, cable head manufacturing process and the like, ground faults and inter-phase short circuit faults are extremely easy to occur, the collection line is tripped, fault points are difficult to check and determine, and the fan on the collection line cannot be connected with a grid to generate power, so that great waste is generated. Based on the above, the junction box has been widely used due to the advantages of short production period, simple and convenient structure, less investment at one time, etc. However, because the space in the junction box is limited, under the condition of hanging a plurality of cables, arc discharge among the cables is easy to cause, and the normal operation of an electric field is influenced. Along with the increasing of new energy power generation field generating capacity, the number of the conflux boxes in series connection is increased, and when one conflux box breaks down, the whole line is difficult to avoid to stop, and huge loss is caused.
The traditional high-voltage combiner box has higher production cost, and not only at least three side expansion sleeves are needed for each box, but also a side expansion bus connecting device is needed. The unit combination structure is adopted, and the space occupation is large. The high-voltage side is provided with a plurality of connection points, a plurality of cables are needed to be spliced, so that splicing looseness among cable heads is caused, the cables are easy to burn due to heating, and line faults are caused; the plurality of collecting boxes are connected in series by adopting one collecting circuit, when a certain collecting box on the collecting circuit fails, the whole collecting circuit must be stopped, and the cable head is difficult to overhaul on site after being damaged, so that the power generation benefit is reduced;
based on the above, a novel multifunctional intelligent new energy converging device needs to be developed and designed.
Disclosure of Invention
The embodiment of the invention provides novel multifunctional intelligent new energy converging equipment, which is used for solving the problem that a converging box in the prior art occupies a large space.
The embodiment of the invention provides novel multifunctional intelligent new energy converging equipment, which comprises the following components:
the device comprises an air box, a plurality of inlet wire units and a plurality of sleeve insulators; the air box is a closed cavity filled with insulating gas;
the plurality of incoming line units respectively comprise: the control mechanism, the switch module and the plurality of incoming line insulators; the switch module is fixedly arranged in the air box, the plurality of incoming wire insulators penetrate through the wall of the air box, the conductive ends of the incoming wire insulators are electrically connected with the second end of the switch module, the body of the operating mechanism is fixedly arranged on the outer surface of the air box, and the movable end of the operating mechanism penetrates through the wall of the air box and is in transmission with the switch module;
the plurality of sleeve insulators penetrate through the gas tank wall respectively, and the conductive ends of the plurality of sleeve insulators are electrically connected with the first end of the switch module;
when the movable end of the operating mechanism acts, the first end and the second end of the switch module are closed or opened.
In one possible implementation, the switch module includes: the isolating switch and the circuit breaker are fixedly arranged in the gas tank;
the first end of the isolating switch is electrically connected with the conductive ends of the plurality of incoming line insulators, the second end of the isolating switch is electrically connected with the first end of the circuit breaker, and the second end of the circuit breaker is electrically connected with the plurality of sleeve insulators;
the isolating switch and the circuit breaker are respectively provided with an operating end, and the operating ends of the isolating switch and the circuit breaker are respectively in transmission with the moving end of the operating mechanism.
In one possible implementation, the manipulation mechanism includes: a disconnector mechanism and a circuit breaker mechanism;
the body of the isolating switch mechanism and the body of the circuit breaker mechanism are fixedly arranged on the outer surface of the air box, and the moving end of the isolating switch mechanism and the moving end of the circuit breaker mechanism respectively penetrate through the wall of the air box and are in transmission with the operating end of the isolating switch and the operating end of the circuit breaker.
In one possible implementation manner, the plurality of sleeve insulators and the plurality of wire-incoming insulators are respectively arranged in a central symmetry manner, wherein the sleeve insulator or the wire-incoming insulator positioned in the center is straight, the sleeve insulator or the wire-incoming insulator positioned at the periphery is bent, and the bending directions of the bent sleeve insulator and the bent wire-incoming insulator deviate from the symmetry center.
In one possible implementation manner, the novel multifunctional intelligent new energy bus device further includes: a plurality of protection devices and a plurality of zero sequence current transformers;
the plurality of zero sequence current transformers are respectively and electrically connected with the plurality of protection devices, and the plurality of protection devices are electrically connected with the operating mechanism;
when the plurality of zero sequence current transformers collect the abnormal current of the inlet cable or the abnormal current of the outlet cable, the plurality of protection devices send out early warning information or output signals indicating the operating mechanism to execute breaking action according to the abnormal current, wherein the inlet cable is a cable electrically connected with the plurality of inlet wire insulators, and the outlet cable is a cable electrically connected with the plurality of sleeve insulators.
In one possible implementation manner, the novel multifunctional intelligent new energy bus device further includes: the plurality of current transformers are respectively sleeved on the outer surfaces of the plurality of incoming wire insulators;
the plurality of current transformers are respectively and electrically connected with the plurality of protection devices, and the plurality of protection devices send current signals collected by the plurality of current transformers.
In one possible implementation manner, the novel multifunctional intelligent new energy bus device further includes: a voltage transformer; the voltage transformer is electrically connected with the plurality of protection devices;
when the outlet cable outputs voltage, the voltage transformer induces voltage to supply power to the plurality of protection devices.
In one possible implementation manner, the novel multifunctional intelligent new energy bus device further includes: the cabinet body, a plurality of copper bars and a plurality of post insulators;
the gas tank and the plurality of post insulators are respectively and fixedly arranged in the cabinet body, the plurality of copper bars are fixed through the plurality of post insulators so as to ensure that the plurality of copper bars are insulated from the cabinet body, and the plurality of copper bars are respectively and electrically connected with the conductive ends of the plurality of sleeve insulators and the conductive ends of the plurality of wire inlet insulators.
In one possible implementation manner, the novel multifunctional intelligent new energy bus device further includes: the lightning arresters are fixed through the post insulators, and the first ends of the lightning arresters are respectively and electrically connected with the conductive ends of the sleeve insulators and the conductive ends of the incoming line insulators;
when overvoltage occurs at the first ends of the plurality of lightning arresters and the second ends of the plurality of lightning arresters are grounded, the plurality of lightning arresters become in a low-resistance state to release the overvoltage at the first ends of the plurality of lightning arresters.
In one possible implementation, the gas box is provided with a viewing window.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the embodiment of the invention discloses novel multifunctional intelligent new energy converging equipment, which is characterized in that a plurality of switch modules are simultaneously arranged in a box body, and the space between the switch modules can be reduced by means of high-insulation gas isolation, so that the whole volume of the converging equipment is reduced, and the consumption of materials is reduced.
According to some embodiments of the invention, the isolating switch mechanism and the circuit breaker mechanism are arranged outside the gas tank, namely, the isolating switch and the circuit breaker can be operated to be switched on and off outside, and the isolating switch mechanism and the circuit breaker mechanism are convenient to check and maintain, so that the volume of the gas tank is reduced, and the strength and the sealing performance of the gas tank are improved.
Some embodiments of the invention achieve excessive spacing through multiple bushing insulators and multiple wire in-line insulators. Therefore, the transition between the conductor spacing of the air box and the air conductor spacing is completed, the volume of the air box is ensured, and the reasonable spacing of the wires on the air side is ensured.
The zero sequence current transformer and the protection device provided by some embodiments of the invention can collect zero sequence current of the inlet cable and the outlet cable, can find problems in time when the problems occur in the lines, and can isolate the problem lines by automatic operation of the operating mechanism, thereby guaranteeing the safety of the system.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a three-dimensional view of an exterior structure of an air box provided by an embodiment of the present invention;
FIG. 2 is a side view of an air box with partial cutaway provided by an embodiment of the present invention;
FIG. 3 is a front view of an exterior structure of an air box according to an embodiment of the present invention;
FIG. 4 is a bottom view of the exterior structure of the air box provided by an embodiment of the present invention;
FIG. 5 is a three-dimensional view of a novel multifunctional intelligent new energy confluence device provided by an embodiment of the invention;
fig. 6 is a front view of a novel multifunctional intelligent new energy confluence device provided by an embodiment of the present invention.
Fig. 7 is a three-dimensional view of the outer contour of the novel multifunctional intelligent new energy confluence device provided by the embodiment of the invention;
FIG. 8 is a side view of the novel multifunctional intelligent new energy bus device provided by the embodiment of the invention with side covers removed;
FIG. 9 is a cross-sectional view of a contactor provided in accordance with an embodiment of the present invention;
fig. 10 is a functional block diagram of an application of the multifunctional intelligent new energy confluence device provided with the contactor according to the embodiment of the present invention.
In the figure:
an air box 100;
a manipulation mechanism 210;
a disconnecting switch mechanism 211;
a circuit breaker mechanism 212;
a switch module 220;
an isolation switch 221;
a circuit breaker 222;
a contactor 223;
a wire inlet insulator 230;
a sleeve insulator 300;
a protection device 400;
a zero sequence current transformer 510;
a current transformer 520;
a voltage transformer 530;
a cabinet 610;
a copper bar 620;
post insulators 630;
a lightning arrester 640;
and a viewing window 650.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following description will be made with reference to the accompanying drawings.
The following describes in detail the embodiments of the present invention, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation procedure are given, but the protection scope of the present invention is not limited to the following embodiments.
1-10, the external structure diagram of the novel multifunctional intelligent new energy confluence device and the air box 100 provided by the embodiment of the invention is shown in detail as follows:
the embodiment of the invention provides novel multifunctional intelligent new energy converging equipment, which comprises the following components:
a gas box 100, a plurality of incoming line units, and a plurality of sleeve insulators 300; the gas tank 100 is a closed cavity filled with insulating gas;
the plurality of incoming line units respectively comprise: a handling mechanism 210, a switch module 220, and a plurality of incoming line insulators 230; the switch module 220 is fixedly disposed inside the gas tank 100, the plurality of incoming line insulators 230 penetrate through the gas tank wall, the conductive ends of the plurality of incoming line insulators 230 are electrically connected with the second end of the switch module 220, the body of the operating mechanism 210 is fixedly disposed on the outer surface of the gas tank 100, and the movable end of the operating mechanism 210 penetrates through the gas tank wall to be driven by the switch module 220;
the plurality of sleeve insulators 300 penetrate through the air tank wall respectively, and the conductive ends of the plurality of sleeve insulators 300 are electrically connected with the first end of the switch module 220;
when the movable end of the operating mechanism 210 is operated, the first end and the second end of the switch module 220 are closed or opened.
The bus device is used for outputting the collected multiple paths of power sources, and in some situations, one of the multiple incoming lines is selected to be connected with the outgoing line. Two incoming line units and one outgoing line unit are arranged in the drawing, so that one incoming line can be selected from the two incoming line units to be connected with the outgoing line.
The switch module 220 is connected with the incoming line and the outgoing line, and an electric arc can be generated when the switch module 220 is closed and disconnected, so that high requirements on insulating performance are met. The reliability of the switch modules 220 is not easy to be ensured after long-time use by adopting a conventional insulation mode, so that the embodiment of the invention starts from reliability and volume, and combines the consideration of material consumption, a plurality of switch modules 220 are placed in a closed cavity provided with insulating gas: in the gas box 100. The gas box 100 is filled with an insulating gas, for example, sulfur hexafluoride, and the switch module 220 operates in a sealed and insulating gas, so that reliability and durability are greatly improved. On the other hand, since the plurality of switch modules 220 are simultaneously placed in the box body, the space between the plurality of switch modules 220 can be reduced by means of high-insulation gas isolation, so that the whole volume of the converging equipment is reduced, and the consumption of materials is reduced.
The switch module 220 is electrically connected to the incoming line and outgoing line through the incoming line insulator 230 and the sleeve insulator 300. In some embodiments, the incoming insulator 230 and the sleeve insulator 300 are insulating rods with conductors inside, and the insulating rods penetrate through the inner wall and the outer wall of the gas tank 100 and are sealed with the penetrating points, so that the sealing of the gas tank 100 is ensured. In the drawing, three wire-in insulators 230 are grouped together, corresponding to three-phase alternating current power supply, and two groups are shared, and the sleeve insulators 300 are grouped together in three groups. Both ends of the switch module 220 are electrically connected with the incoming wire insulator 230 and the sleeve insulator 300, respectively, and when the switch module 220 is disconnected or closed, the incoming wire insulator 230 is disconnected or connected with the sleeve insulator 300.
In terms of operation of the switch module 220, the switch module 220 is driven to operate by the operating mechanism 210 disposed outside the air box 100. Specifically, the body portion of the operating mechanism 210 is fixed on the outer surface of the air box 100, and the moving end of the operating mechanism 210 penetrates through the air box wall and then is driven by the switch module 220. In one embodiment, the moving end of the operating mechanism 210 is a shaft, and after the shaft penetrates through the air box 100 through rotary sealing, the shaft rotates to drive the switch module 220 to realize breaking or closing action, so as to break or connect the first end and the second end of the switch module 220.
In some embodiments, the switch module 220 includes: a disconnecting switch 221 and a circuit breaker 222, wherein the disconnecting switch 221 and the circuit breaker 222 are fixedly arranged inside the gas tank 100;
a first end of the isolating switch 221 is electrically connected to the conductive ends of the plurality of incoming line insulators 230, a second end of the isolating switch 221 is electrically connected to a first end of the circuit breaker 222, and a second end of the circuit breaker 222 is electrically connected to the plurality of bushing insulators 300;
the disconnecting switch 221 and the circuit breaker 222 are respectively provided with an operation end, and the operation end of the disconnecting switch 221 and the operation end of the circuit breaker 222 are respectively driven by the movable end of the operating mechanism 210.
In some embodiments, the steering mechanism 210 includes: a disconnector mechanism 211 and a circuit breaker mechanism 212;
the body of the disconnecting switch mechanism 211 and the body of the circuit breaker mechanism 212 are fixedly arranged on the outer surface of the gas tank 100, and the moving end of the disconnecting switch mechanism 211 and the moving end of the circuit breaker mechanism 212 respectively penetrate through the gas tank wall and are in transmission with the operating end of the disconnecting switch 221 and the operating end of the circuit breaker 222.
Illustratively, in some application scenarios, the switch module 220 includes a disconnecting switch 221 and a circuit breaker 222, wherein the disconnecting switch 221 is disposed on a side close to the incoming insulator 230, and the circuit breaker 222 is disposed on a side close to the bushing insulator 300, so as to facilitate connection of the incoming insulator 230 to an inlet of the disconnecting switch 221, connection of the bushing insulator 300 to an outlet of the circuit breaker 222, and connection of an outlet of the disconnecting switch 221 to an inlet of the circuit breaker 222.
Corresponding to the disconnecting switch 221 and the circuit breaker 222, the operating mechanism 210 is provided with a disconnecting switch mechanism 211 and a circuit breaker mechanism 212, and the moving ends of the disconnecting switch mechanism 211 and the circuit breaker mechanism 212 penetrate through the box body of the gas box 100 and then are driven by the disconnecting switch 221 and the circuit breaker 222, so that the actions of the disconnecting switch 221 and the circuit breaker 222 are realized.
The isolating switch mechanism 211 and the circuit breaker mechanism 212 are arranged outside the gas tank 100, namely, the isolating switch 221 and the circuit breaker 222 can be operated to be switched on and off outside, so that the isolating switch mechanism 211 and the circuit breaker mechanism 212 are convenient to check and maintain, the volume of the gas tank 100 is reduced, and the strength and the sealing performance of the gas tank 100 are improved.
In some embodiments, the plurality of sleeve insulators 300 and the plurality of wire-incoming insulators 230 are arranged in a central symmetry manner, wherein the sleeve insulator 300 or the wire-incoming insulator 230 positioned in the center is straight, the sleeve insulator 300 or the wire-incoming insulator 230 positioned at the periphery is curved, and the curved sleeve insulator 300 and the curved wire-incoming insulator 230 are curved in a direction away from the symmetry center.
Illustratively, as described above, the insulating property of the insulating gas is higher than that of the atmosphere, and when the wires are led out of and into the gas tank 100 through the sleeve insulator 300 and the insulator is performed, if the pitch of the wires is still set at the pitch of the gas tank 100, the pitch of the wires with respect to the atmosphere is necessarily made smaller, and similarly, if the pitch of the gas tank 100 is set at the pitch of the atmosphere, the volume of the gas tank 100 is necessarily increased.
Embodiments of the present invention provide for excessive spacing between the plurality of sleeve insulators 300 and the plurality of wire inlet insulators 230. The insulators are arranged on the wall of the gas tank in a central symmetry mode, wherein the insulators positioned in the center of symmetry are straight insulators, the insulators positioned at the periphery are bent insulators, and as can be predicted, the distance between one ends of the bent insulators, which are close to the gas tank 100, is small, and the distance between one ends of the bent insulators, which are far away from the gas tank 100, is large, so that a splayed or horn mouth is formed.
In this way, the transition between the conductor spacing of the air box 100 and the atmospheric conductor spacing is completed, so that the volume of the air box 100 is ensured, and the reasonable spacing of the wires on the atmospheric side is ensured.
In some embodiments, the novel multifunctional intelligent new energy collection device further comprises: a plurality of protection devices 400 and a plurality of zero sequence current transformers 510;
the plurality of zero sequence current transformers 510 are electrically connected with the plurality of protection devices, and the plurality of protection devices 400 are electrically connected with the operating mechanism 210;
when the plurality of zero sequence current transformers 510 collect an abnormal inlet cable current or an abnormal outlet cable current, the plurality of protection devices 400 send out an early warning message or output a signal indicating the operating mechanism 210 to perform a breaking action according to the abnormal current, wherein the inlet cable is a cable electrically connected with the plurality of inlet wire insulators 230, and the outlet cable is a cable electrically connected with the plurality of sleeve insulators 300.
In some embodiments, the novel multifunctional intelligent new energy collection device further comprises: the plurality of current transformers 520 are sleeved on the outer surfaces of the plurality of incoming line insulators 230 respectively;
the plurality of current transformers 520 are electrically connected with the plurality of protection devices 400, respectively, and the plurality of protection devices 400 transmit current signals collected by the plurality of current transformers 520.
Illustratively, in some application scenarios, the bus bar device is provided with a protection device 400 and a zero sequence current transformer 510, and in general, the number of the protection devices 400 is the same as the number of the incoming line units, so as to perform one-to-one control, and as shown in the drawings, the protection device 400 and the incoming line units are provided with two sets. The protection device 400 collects zero sequence current of the inlet cable of the wire inlet unit through the zero sequence current transformer 510, outputs a signal when the zero sequence current is abnormal, feeds back to the upper system, or outputs an indication signal to indicate the action of the manipulation mechanism 210. In other applications, there is also a zero sequence current transformer 510 for the outlet cable, and similarly, when the outlet cable current is abnormal, the protection device 400 outputs a signal indicating the action of the operating mechanism 210.
The zero sequence current transformer 510 and the protection device 400 provided by the embodiment of the invention can collect the zero sequence current of the inlet cable and the outlet cable, can find problems in time when the problems occur in the lines, and can isolate the problem lines by the automatic operation of the operating mechanism 210, thereby guaranteeing the safety of the system.
In addition, in other application scenarios, a current transformer 520 is provided outside the incoming insulator 230 to collect the current of each phase of the incoming cable, and these collected currents are fed back to the protection device 400, and the protection device 400 sends these current signals to the upper system.
In some embodiments, the novel multifunctional intelligent new energy collection device further comprises: a voltage transformer 530; the voltage transformer 530 is electrically connected with the plurality of protection devices 400;
when the outlet cable outputs a voltage, the voltage transformer 530 induces a voltage to power the plurality of protection devices 400.
Illustratively, in some busbar apparatuses, there are also voltage transformers 530, and two voltage transformers 530 are used to sense the voltage of the outlet cable, so as to supply power to the protection device 400, and at the same time collect cable voltage signals and feed them back to the protection device 400, and the protection device 400 sends these signals to the host system, and outputs signals indicating the operation of the operating mechanism 210 when an abnormality occurs, such as an undervoltage.
Because the embodiment of the invention acquires the electric energy through the induction of the voltage transformer 530, a power supply is not required to be arranged for supplying power to the protection device 400, and the complexity of the structure and the consumption of materials are reduced.
In some embodiments, the novel multifunctional intelligent new energy collection device further comprises: a cabinet 610, a plurality of copper bars 620, and a plurality of post insulators 630;
the gas tank 100 and the plurality of post insulators 630 are respectively and fixedly arranged inside the cabinet 610, the plurality of copper bars 620 are fixed by the plurality of post insulators 630 to ensure that the plurality of copper bars 620 are insulated from the cabinet 610, and the plurality of copper bars 620 are respectively and electrically connected with the conductive ends of the plurality of sleeve insulators 300 and the conductive ends of the plurality of wire inlet insulators 230.
In some embodiments, the novel multifunctional intelligent new energy collection device further comprises: a plurality of lightning arresters 640, the plurality of lightning arresters 640 being fixed by the plurality of post insulators 630, first ends of the plurality of lightning arresters 640 being electrically connected to the conductive ends of the plurality of bushing insulators 300 and the conductive ends of the plurality of wire incoming insulators 230, respectively;
when an overvoltage occurs at the first ends of the plurality of lightning arresters 640 and the second ends of the plurality of lightning arresters 640 are grounded, the plurality of lightning arresters 640 become a low resistance state to release the overvoltage at the first ends of the plurality of lightning arresters 640.
Illustratively, in some application scenarios, the gas box 100, the wire inlet unit and the sleeve insulator 300 are all disposed inside the cabinet 610, the copper bar 620 and the post insulator 630 are further disposed inside the cabinet 610, the copper bar 620 is fixed inside the cabinet 610 through the post insulator 630 and is connected with the sleeve insulators 300 and the wire inlet insulator 230, and since the copper bar 620 and the insulators are disposed according to reasonable spacing, the space inside the cabinet 610 can be utilized to the maximum to provide reasonable gaps for the copper bar 620, and on the other hand, the volume of the cabinet 610 can be reduced.
In addition, in some embodiments, a lightning arrester 640 is provided, and similarly, the lightning arrester 640 is fixed inside the cabinet 610 through a post insulator 630, one end of which is connected to the copper bar 620 or the insulator, and the other end of which is used to connect to the ground. In the normal state, the lightning arrester 640 is in a high-resistance state, and when overvoltage occurs, the resistance of the lightning arrester 640 suddenly drops, and the overvoltage is led into the ground to protect a circuit.
In some embodiments, the gas box 100 is provided with a viewing window 650.
Illustratively, in some embodiments, the gas box 100 is provided with a viewing window 650, through which the status of the internal components including the disconnector 221 and the circuit breaker 222 can be observed.
The converging equipment provided by the embodiment of the invention is mainly applied to a new energy power generation system. As known, the problems of difficult delivery and difficult digestion of hydroelectric, wind power and photovoltaic power generation are usually caused while the development and the utilization of clean energy are quickened. The data shows that the annual water-abandoned electricity consumption is about 691 hundred million kilowatt-hours, the wind-abandoned electricity consumption is 277 hundred million kilowatt-hours, the light-abandoned electricity consumption is 54.9 hundred million kilowatt-hours, and the total three-abandoned electricity consumption is about 1023 hundred million kilowatt-hours, which exceeds the electricity generation capacity of the synchronous three gorges power station. In addition, wind power and photovoltaic power generation are discontinuous and unstable in new energy power generation. There are instances of power down, power up for an indefinite period of time.
In this scenario, if the circuit breaker is used to switch the state of the new energy equipment grid connection, the circuit breaker will generate loss. Therefore, in some application scenarios, the combiner box is configured with the contactor 223 as shown in fig. 9, so that no-load loss of the transformer can be reduced, and the system of intelligent grid connection, grading energy storage and the like can be matched.
As shown in fig. 10, which shows a schematic block diagram of a junction device provided with two vacuum contactors, applied in an electrical network.
When the power load of the main network is increased, the main network circuit breaker is switched on, the box transformer in the new energy branch is regulated to the grid-connected voltage (the vacuum contactor 1 is controlled to be in a switched-on state), the energy storage branch can be switched on and off according to the main network load monitoring device, the energy storage branch is regulated to be disconnected according to the energy storage condition of the energy storage station, the energy storage station can be raised to the grid-connected voltage and the total grid-connected power supply quantity is regulated, and the grid-connected voltage is consistent with the grid-connected voltage of the new energy box transformer. (at this time, the vacuum contactor 2 is brought into a closed state). The new energy source and the electric energy of the energy storage station are integrated into the main network.
When the power load of the main network is reduced, the main network circuit breaker is opened, the new energy branch (the vacuum contactor 1 is in a closing state), the energy storage station of the energy storage branch is regulated to the energy storage voltage, and the electric energy sent by the new energy equipment is received for charging. (the vacuum contactor 2 is controlled to be in a closing state.) the electric energy generated by the new energy source enters the energy storage station.
When new energy enters a fluctuation period, such as photovoltaic to evening, the box transformer in the new energy branch enters an idle load loss stage (the vacuum contactor 1 is controlled to be in a switching-off state), so that the idle load loss of the transformer can be eliminated, the service life of the transformer is prolonged, and the energy storage branch can be adjusted continuously according to the main network load monitoring device. The contactor 2 is adjusted according to the load data, the load demand of the main network is increased, and the energy storage station adjusts the voltage to be in an energy sending state. There is no load demand and the contactor 2 is opened. The load of the main network is reduced, the voltage of the energy storage station is reduced, and the contactor 1 is switched on, so that the energy storage station enters an energy storage state.
The process can effectively improve new energy consumption capability and reduce wind and light abandoning. The method is beneficial to peak regulation and valley filling and smoothing of load curves, and the flexible regulation capability of the power grid is obviously improved. And when the power is boosted at 690V-35kV and 35kV-110kV, the no-load loss of the transformer can be reduced.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limited thereto; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and they should be included in the protection scope of the present invention.
Claims (10)
1. Novel multi-functional intelligent new forms of energy equipment that converges, its characterized in that includes: an air box (100), a plurality of incoming units, and a plurality of sleeve insulators (300); the air box (100) is a closed cavity filled with insulating gas;
the plurality of incoming line units respectively comprise: an operating mechanism (210), a switch module (220) and a plurality of incoming line insulators (230); the switch module (220) is fixedly arranged inside the gas tank (100), the plurality of incoming line insulators (230) penetrate through the wall of the gas tank, the conductive ends of the incoming line insulators (230) are electrically connected with the second end of the switch module (220), the body of the operating mechanism (210) is fixedly arranged on the outer surface of the gas tank (100), and the movable end of the operating mechanism (210) penetrates through the wall of the gas tank and is in transmission with the switch module (220);
the plurality of sleeve insulators (300) penetrate through the gas tank wall respectively, and the conductive ends of the plurality of sleeve insulators (300) are electrically connected with the first end of the switch module (220);
when the movable end of the operating mechanism (210) acts, the first end and the second end of the switch module (220) are closed or opened.
2. The novel multifunctional intelligent new energy bus equipment according to claim 1, wherein the switch module (220) comprises: the isolating switch (221) and the circuit breaker (222) are fixedly arranged inside the gas tank (100);
the first end of the isolating switch (221) is electrically connected with the conductive ends of the plurality of incoming line insulators (230), the second end of the isolating switch (221) is electrically connected with the first end of the circuit breaker (222), and the second end of the circuit breaker (222) is electrically connected with the plurality of sleeve insulators (300);
the disconnecting switch (221) and the circuit breaker (222) are respectively provided with an operation end, and the operation end of the disconnecting switch (221) and the operation end of the circuit breaker (222) are respectively in transmission with the movable end of the operating mechanism (210).
3. The novel multifunctional intelligent new energy confluence device according to claim 2, wherein the manipulation mechanism (210) comprises: a disconnecting switch mechanism (211) and a circuit breaker mechanism (212);
the body of the disconnecting switch mechanism (211) and the body of the circuit breaker mechanism (212) are fixedly arranged on the outer surface of the gas tank (100), and the moving end of the disconnecting switch mechanism (211) and the moving end of the circuit breaker mechanism (212) penetrate through the wall of the gas tank respectively and are in transmission with the operating end of the disconnecting switch (221) and the operating end of the circuit breaker (222).
4. The novel multifunctional intelligent new energy bus bar device according to claim 1, wherein the plurality of sleeve insulators (300) and the plurality of wire-in insulators (230) are respectively arranged in a central symmetry mode, wherein the sleeve insulator (300) or the wire-in insulator (230) positioned at the center is in a straight mode, the sleeve insulator (300) or the wire-in insulator (230) positioned at the periphery is in a bent mode, and the bending directions of the bent sleeve insulator (300) and the bent wire-in insulator (230) deviate from the symmetry center.
5. The novel multifunctional intelligent new energy confluence device according to claim 1, further comprising: a plurality of protection devices (400) and a plurality of zero sequence current transformers (510);
the plurality of zero sequence current transformers (510) are respectively and electrically connected with the plurality of protection devices, and the plurality of protection devices (400) are electrically connected with the operating mechanism (210);
when the plurality of zero sequence current transformers (510) collect the abnormal current of the inlet cable or the abnormal current of the outlet cable, the plurality of protection devices (400) send out early warning information or output signals indicating the operating mechanism (210) to execute breaking action according to the abnormal current, wherein the inlet cable is a cable electrically connected with the plurality of inlet wire insulators (230), and the outlet cable is a cable electrically connected with the plurality of sleeve insulators (300).
6. The novel multifunctional intelligent new energy confluence device according to claim 5, further comprising: the plurality of current transformers (520) are sleeved on the outer surfaces of the plurality of incoming line insulators (230) respectively;
the plurality of current transformers (520) are respectively and electrically connected with the plurality of protection devices (400), and the plurality of protection devices (400) send current signals collected by the plurality of current transformers (520).
7. The novel multifunctional intelligent new energy confluence device according to claim 5, further comprising: a voltage transformer (530); the voltage transformer (530) is electrically connected to the plurality of protection devices (400);
when the outlet cable outputs a voltage, the voltage transformer (530) induces a voltage to power the plurality of protection devices (400).
8. The novel multifunctional intelligent new energy confluence device according to any one of claims 1 to 7, further comprising: a cabinet (610), a plurality of copper bars (620), and a plurality of post insulators (630);
the gas tank (100) and the plurality of post insulators (630) are respectively and fixedly arranged in the cabinet body (610), the plurality of copper bars (620) are fixedly arranged through the plurality of post insulators (630) so as to ensure that the plurality of copper bars (620) are insulated with the cabinet body (610), and the plurality of copper bars (620) are respectively and electrically connected with the conductive ends of the plurality of sleeve insulators (300) and the conductive ends of the plurality of wire inlet insulators (230).
9. The novel multifunctional intelligent new energy confluence device according to claim 8, further comprising: a plurality of lightning arresters (640), the plurality of lightning arresters (640) being fixed by the plurality of post insulators (630), first ends of the plurality of lightning arresters (640) being electrically connected to the conductive ends of the plurality of bushing insulators (300) and the conductive ends of the plurality of incoming line insulators (230), respectively;
when an overvoltage occurs at the first ends of the plurality of arresters (640) and the second ends of the plurality of arresters (640) are grounded, the plurality of arresters (640) become in a low-resistance state to release the overvoltage at the first ends of the plurality of arresters (640).
10. The novel multifunctional intelligent new energy confluence device according to claim 1, wherein the air box (100) is provided with an observation window (650).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311236515.7A CN117293701A (en) | 2023-09-22 | 2023-09-22 | Novel intelligent new forms of energy equipment that converges of multi-functional |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311236515.7A CN117293701A (en) | 2023-09-22 | 2023-09-22 | Novel intelligent new forms of energy equipment that converges of multi-functional |
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| Publication Number | Publication Date |
|---|---|
| CN117293701A true CN117293701A (en) | 2023-12-26 |
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| CN202311236515.7A Pending CN117293701A (en) | 2023-09-22 | 2023-09-22 | Novel intelligent new forms of energy equipment that converges of multi-functional |
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| Country | Link |
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| CN (1) | CN117293701A (en) |
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2023
- 2023-09-22 CN CN202311236515.7A patent/CN117293701A/en active Pending
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