CN206547006U - A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus - Google Patents
A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus Download PDFInfo
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Abstract
The utility model embodiment discloses the electric power system that a kind of master cooperates with power distribution network wiring construction with lotus, for solving the reasonable sex chromosome mosaicism of single structure that the domestic existing power distribution network wiring construction of power network solve only power distribution network network layers at present, itself and major network Rotating fields and the matching relationship of load Rotating fields are not accounted for, the technical problem for power supply bottleneck easily occur.The utility model embodiment includes：Major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer, major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer are sequentially connected；Major network low-voltage bus bar layer is the section wiring mode of eight bus four；Distribution trunk layer interconnects the Y modes of connection for double-strand ring three；Distribution time dried layer is the interconnection collaboration power supply mode of connection more than many closed loops；User's power distribution room load layer is single-trunk segmental wiring and the double spare bus mode of connection.
Description
Technical field
The utility model is related to field of distribution network, more particularly to a kind of master cooperates with the power supply system of power distribution network wiring construction with lotus
System.
Background technology
In recent years, with supply side continuous development of the reform and rapid development of economy, electricity consumption enterprise has been no longer satisfied with
Basic power demands, but more and more higher requirement is proposed to power supply capacity, power supply reliability, network self-healing ability etc., therefore,
Practical development stage of the various regions all in accordance with oneself, it is proposed that be adapted to the power distribution network wiring construction of this area power supply reliability requirement,
And continue research reliability be higher, more reasonable structure, economic benefit more preferably, be more suitable for intelligent distribution network developing direction, the whole network
The distribution network structure that network is coordinated.
Therefore, one of important content of China " 13 " planning is exactly the construction and upgrading for strengthening power distribution network.Therefore, must
It must consider how by the technological improvement to power network, to meet the power demands that electricity consumption enterprise is growing.
Distribution network structure planning and the height of its construction level, can directly affect the development of electricity consumption enterprise, rational, coordination
Distribution network structure structure not only can investment reduction, moreover it is possible to makes to supply, electricity consumption enterprise obtains huge economic and social benefit, promotes
The sound development of relevant industries；, whereas if planning and building unreasonable, it will bring huge to confession, electricity consumption enterprise both sides
Loss.
High-quality power distribution network is the important public infrastructure of national economy and social development, but which type of power network is
High-quality, existing distribution net work structure generally existing recognizes blind area both at home and abroad at present, can not to automating coverage rate, power supply
Considered there is certain bottleneck in different aspect comprehensively by property, self-healing ability, network reconfiguration ability and power supply capacity etc.
Point, i.e., could not carry out comprehensive system planning and designing, it is difficult to the need for meeting era development by main power source to terminal user.In recent years
Come, China's distribution network construction input is continued to increase, power distribution network development obtains remarkable effect, but relative international most advanced level still has difference
Away from it, which automates coverage rate, power supply reliability, self-healing ability, network reconfiguration ability and power supply capacity etc., has much room for improvement.Build
And transformation power distribution network can not only consider intellectualized technology level, the raising of distribution network structure structure technology level, while also same
Step considers all standing of supply network.This be not only advantageous to improve power distribution network power supply capacity, additionally it is possible to improve power supply reliability,
Utilization rate, reduction current supply loss and the effect for preferably playing distribution automatic system of equipment.Following power distribution network will be set up
Master, match somebody with somebody, lotus is coordinated, target is unified, safe and efficient, the modern power distribution systems of height fusion.
Comprehensively safe and reliable, economical and efficient, advanced technology, environment-friendly distribution network is built to achieve many things at one stroke, can
Enough ensure the people's livelihood, pull investment, manufacturing industry level can be driven to be lifted again, to adapt to energy interconnection, promoting " internet+" development
Provide strong support, for steady growth, rush reform, adjust structure, Huimin life significant.
Power network existing power distribution network wiring construction in the country's simply considers that the power supply capacity of single level, power supply are reliable at present
The raising of property, self-healing ability, network reconfiguration ability and automatization level, does not carry out comprehensive overall planning, that is, only solve
The reasonable sex chromosome mosaicisms of single structure of power distribution network network layers, the cooperation for not accounting for its with major network Rotating fields and load Rotating fields is closed
System, not by the low-voltage bus bar layer of major network substation transformer, distribution trunk layer, distribution time dried layer, customer charge layer, is carried out complete
Face, uniformly, collaborative design, make the automatization level between layers of power distribution network, power supply reliability, self-healing ability, network weight
Structure ability and power supply capacity etc. are unable to the coordinating and unifying, power supply bottleneck easily occur.
For that purpose it is necessary to study the electric power system that a kind of master cooperates with power distribution network wiring construction with lotus, it will be set up by the system
Major network layer, with stratum reticulare, load layer is coordinated, target is unified, the distribution system that efficiency is consistent, i.e., by major network substation transformer
Low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, customer charge layer, carry out comprehensively, uniformly, collaborative design, make power distribution network
Automatization level between layers, power supply reliability, self-healing ability, network reconfiguration ability and power supply capacity etc. coordinate system
One, and synchronous raising is obtained, to eliminate supply network bottleneck.
Utility model content
The utility model embodiment provides the electric power system that a kind of master cooperates with power distribution network wiring construction with lotus, solves mesh
The reasonable sex chromosome mosaicism of single structure that the preceding existing power distribution network wiring construction of domestic power network solve only power distribution network network layers, is not accounted for
Itself and major network Rotating fields and the matching relationship of load Rotating fields, cause automatization level between layers, the power supply of power distribution network
Reliability, self-healing ability, network reconfiguration ability and power supply capacity etc. are unable to the coordinating and unifying, and the technology for power supply bottleneck easily occur is asked
Topic.
A kind of master that the utility model embodiment is provided cooperates with the electric power system of power distribution network wiring construction with lotus, including：
Major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer, the major network low pressure are female
Line layer, distribution trunk layer, the distribution time dried layer, user's power distribution room load layer are sequentially connected；
The major network low-voltage bus bar layer is the section wiring mode of eight bus four, every section of bus of the major network low-voltage bus bar layer
Two return back out the closed loop that line connects distribution trunk layer as electric power incoming line；
The distribution trunk layer interconnects the Y modes of connection for double-strand ring three, and the interconnection of the double-strand ring three Y modes of connection are specially
By the two of at least three same low-voltage bus bars through same transformer station return back out line extension link several using single busbar point
The closed loop of the switchyard composition of the section mode of connection connects and composes power supply unit, every section of bus of the switchyard of the distribution trunk layer
Each one return back out the closed loop that line connects the distribution time dried layer as electric power incoming line；
The distribution time dried layer is the interconnection collaboration power supply mode of connection more than many closed loops, and each of the power distribution network time dried layer closes
The power supply of ring is connected with the bus of the switchyard of power distribution network trunk layer；
The distribution transformer low-pressure side of user's power distribution room load layer is that single-trunk segmental wiring and double spare bus connect
Line mode.
Alternatively, contact point is set to interconnect the switchyard in the middle of the closed loop of the distribution trunk layer.
Alternatively, the switchyard inlet-outlet line and segmented line of the distribution trunk layer are each equipped with breaker and protection observing and controlling one
Body automatization terminal.
Alternatively, the inlet-outlet line of the switchyard of distribution trunk layer enters eight using four and gone out or four enter the 12 wiring sides gone out
Formula, the outlet of the switchyard of distribution trunk layer as the distribution time dried layer plant-grid connection point.
Alternatively, at least four switch rooms are serially connected with each closed loop of the distribution time dried layer, each switch room
Using single bus scheme mode.
Alternatively, the switch room is configured with two and returns back out line or four return back out line or six return back out line.
Alternatively, each of the switch room returns back out the transformer that line is respectively connecting in different user's power distribution rooms.
Alternatively, the switch room it is each return back out line also with opening by another transformer-supplied in user's power distribution room
Close the one of room and return back out line connection, form interconnection architecture.
Alternatively, the distribution transformer low-pressure side of user's power distribution room uses single-trunk segmental wiring and double spare bus
The mode of connection, every distribution transformer is powered by the switch room outlet of different distributions time dried layer, every distribution transformer
The different distributions time that the low-pressure side auxiliary bus-bar of device is connected by the different distribution trunks layer from being powered to the distribution transformer
The low-pressure side bus of the distribution transformer for user's power distribution room that the switch room outlet of dried layer is powered are powered；
The single busbar of the low-pressure side of the distribution transformer of user's power distribution room is provided with load outlet with auxiliary bus-bar, transports
The load capacity that four sections of buses undertake during row by it is identical come connected load.
Alternatively, the inlet-outlet line in the switch room is each equipped with breaker and protection measurement and control integration automatization terminal.
Alternatively, the major network low-voltage bus bar layer, distribution trunk layer, the distribution time dried layer, user's distribution
Room load layer is each equipped with electrical power distribution automatization system.
Alternatively, the major network low-voltage bus bar layer, distribution trunk layer, the distribution time dried layer, user's distribution
Room load layer is each equipped with backup auto-activating device.
As can be seen from the above technical solutions, the utility model embodiment has advantages below：
The utility model embodiment provides the electric power system that a kind of master cooperates with power distribution network wiring construction with lotus, including：It is main
Net low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer, major network low-voltage bus bar layer, distribution trunk
Layer, distribution time dried layer, user's power distribution room load layer are sequentially connected；Major network low-voltage bus bar layer is the section wiring mode of eight bus four,
The two of every section of bus of major network low-voltage bus bar layer return back out the closed loop that line connects distribution trunk layer as electric power incoming line；With host
Dried layer is that double-strand ring three interconnects the Y modes of connection, and the interconnection Y modes of connection of double-strand ring three are specially through same power transformation by least three
The two of the same low-voltage bus bar stood return back out at least two of the line extension link switchyard group for using single-trunk segmental wiring mode
Into closed loop connect and compose power supply unit；Distribution time dried layer is the interconnection collaboration power supply mode of connection more than many closed loops, and power distribution network time is dry
The power supply of each closed loop of layer is connected with the bus of the switchyard of power distribution network trunk layer；User's power distribution room load layer is single busbar point
In the section wiring and double spare bus mode of connection, the utility model embodiment by by major network low-voltage bus bar layer, distribution trunk layer,
Distribution time dried layer, user's power distribution room load four layers of coordinated of layer, make major network transformer belt load-bearing capacity, distribution trunk layer band negative
Lotus ability, distribution time dried layer on-load ability and user's power distribution room load layer on-load ability are consistent, that is, are 66.7%,
The confession of four layers of major network substation transformer low-voltage bus bar layer, distribution trunk layer, distribution time dried layer and power distribution room load layer is reached
Electric energy power, power supply reliability, self-healing ability, network reconfiguration ability and the synchronous of automatization level are improved, and realize comprehensive pool
Design, solves the single structure reasonability that the domestic existing power distribution network wiring construction of power network at present solve only power distribution network network layers
Problem, does not account for itself and major network Rotating fields and the matching relationship of load Rotating fields, cause power distribution network between layers from
Dynamicization level, power supply reliability, self-healing ability, network reconfiguration ability and power supply capacity etc. are unable to the coordinating and unifying, easily supply
The technical problem of storage battery neck.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is segmented for 4 transformer low voltage buses of major network transformer station that the utility model embodiment is provided using 8 buses 4
Wiring schematic diagram；
Fig. 2 uses 6 buses for 3 transformer low voltage buses of transitional period major network transformer station that the utility model embodiment is provided
3 section wiring schematic diagrames；
Fig. 3 uses 4 buses 2 for 2 transformer low voltage buses of major network transformer station at initial stage that the utility model embodiment is provided
Section wiring schematic diagram；
Fig. 4 is mutual for the double-strand ring three that the distribution trunk layer that the utility model embodiment is provided is connected with 3 transformer stations of major network
Receipts or other documents in duplicate Y mode of connection schematic diagrames；
Fig. 5 is mutual for the double-strand ring three that the distribution trunk layer that the utility model embodiment is provided is connected with 2 transformer stations of major network
The receipts or other documents in duplicate Y mode of connection at initial stage schematic diagrames；
Fig. 6 is mutual for the double-strand ring three that the distribution trunk layer that the utility model embodiment is provided is connected with 2 transformer stations of major network
Join double Y connection wire schematic diagram；
Fig. 7 is mutual for the double-strand ring three that the distribution trunk layer that the utility model embodiment is provided is connected with 4 transformer stations of major network
Join double Y connection wire schematic diagram；
Fig. 8 is mutual for the double-strand ring three that the distribution trunk layer that the utility model embodiment is provided is connected with 2 transformer stations of major network
Join many Y modes of connection schematic diagrames；
4, the transformer station transformer low voltage odd number bus of major network 2 and match somebody with somebody host that Fig. 9 provides for the utility model embodiment
Dried layer double-strand ring three interconnects double Y connection wire connected mode schematic diagram；
Transformer low voltage odd number bus is with matching somebody with somebody host during 3 transformer stations of major network that Figure 10 provides for the utility model embodiment
Dried layer double-strand ring three interconnects double Y connection wire connected mode schematic diagram；
Transformer low voltage odd number bus is with matching somebody with somebody host during 4 transformer stations of major network that Figure 11 provides for the utility model embodiment
Dried layer double-strand ring three interconnects double Y connection wire connected mode schematic diagram；
Figure 12 interconnects Y with distribution trunk layer double-strand ring three for the major network low-voltage bus bar layer that the utility model embodiment is provided and connect
The complete wiring units of line mode cooperate with mode of connection connected mode signal of powering with the optional interconnection of the distribution time closed loop of dried layer 3
Figure；
Major network substation transformer low-voltage bus bar and distribution trunk layer double-strand that Figure 13 provides for the utility model embodiment
3 complete wiring units of the interconnection Y modes of connection of ring three cooperate with the mode of connection of powering with the optional interconnection of the distribution time closed loop of dried layer 3
Connected mode schematic diagram；
Major network substation transformer low-voltage bus bar and distribution trunk layer double-strand that Figure 14 provides for the utility model embodiment
3 complete wiring units of the interconnection Y modes of connection of ring three cooperate with the mode of connection of powering with the optional interconnection of the distribution time closed loop of dried layer 3
Connected mode detailed features schematic diagram；
The distribution trunk layer closed loop switch station that Figure 15 is provided for the utility model embodiment and distribution time dried layer closed loop and its
Switch room connected mode schematic diagram；
Distribution trunk layer closed loop and distribution time dried layer in the block layout design that Figure 16 provides for the utility model embodiment
Closed loop and load layer power distribution room connected mode schematic diagram；
During the block layout design middle-low load density that Figure 17 provides for the utility model embodiment distribution trunk layer closed loop,
The closed loop collaboration power supply of distribution time dried layer and user's power distribution room load layer annexation schematic diagram；
In the block layout design that Figure 18 provides for the utility model embodiment during high load capacity density distribution trunk layer closed loop,
The closed loop collaboration power supply of distribution time dried layer and user's power distribution room load layer annexation schematic diagram；
In the block layout design that Figure 19 provides for the utility model embodiment during high load capacity density distribution trunk layer closed loop,
The closed loop collaboration power supply of distribution time dried layer and user's power distribution room load layer annexation schematic diagram；
In the block layout design that Figure 20 provides for the utility model embodiment during high load capacity density distribution trunk layer closed loop,
The closed loop collaboration power supply of distribution time dried layer and user's power distribution room load layer annexation schematic diagram；
In the block layout design that Figure 21 provides for the utility model embodiment, distribution trunk layer is closed during high load capacity density
Ring, the closed loop collaboration power supply of distribution time dried layer and user's power distribution room load layer annexation schematic diagram；
The power distribution network time dried layer switch room bus bar wiring structure pattern schematic diagram that Figure 22 provides for the utility model embodiment；
The power distribution network time dried layer switch room bus bar wiring structure load current control that Figure 23 provides for the utility model embodiment
System is intended to；
Figure 24 adds double spare bus wiring for the single mother partition of user's power distribution room load layer that the utility model embodiment is provided
Mode；
Figure 25 adds double spare bus load for the single mother partition of user's power distribution room load layer that the utility model embodiment is provided
Current control schematic diagram；
Major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer and use that Figure 26 provides for the utility model embodiment
Family power distribution room load four layers of power distribution network wiring construction schematic diagram of layer；
Distribution trunk layer closed loop, distribution time dried layer are closed in the block layout design that Figure 27 provides for the utility model embodiment
Ring interconnection collaboration power supply and user's power distribution room load layer annexation schematic diagram.
Embodiment
The utility model embodiment provides the electric power system that a kind of master cooperates with power distribution network wiring construction with lotus, for solving
The reasonable sex chromosome mosaicism of single structure that the country's existing power distribution network wiring construction of power network solve only power distribution network network layers at present, is not examined
Consider itself and major network Rotating fields and the matching relationship of load Rotating fields, cause the automatization level between layers of power distribution network, supply
Electric reliability, self-healing ability, network reconfiguration ability and power supply capacity etc. are unable to the coordinating and unifying, the technology for power supply bottleneck easily occur
Problem.
Figure 26 is referred to, a kind of master that the utility model embodiment is provided cooperates with the power supply system of power distribution network wiring construction with lotus
System, including：
Major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer, major network low-voltage bus bar layer,
Distribution trunk layer, distribution time dried layer, user's power distribution room load layer are sequentially connected；
Major network low-voltage bus bar layer is the section wiring mode of eight bus four, and the two of every section of bus of major network low-voltage bus bar layer returns back out
Line connects a closed loop of distribution trunk layer as electric power incoming line；
Distribution trunk layer interconnects the Y modes of connection for double-strand ring three, and the interconnection Y modes of connection of double-strand ring three are specially by least three
What the two of the individual same low-voltage bus bar through same transformer station returned back out line extension link at least two uses single-trunk segmental wiring
The closed loop of the switchyard composition of mode connects and composes power supply unit；
Distribution time dried layer is the interconnection collaboration power supply mode of connection, the power supply of each closed loop of power distribution network time dried layer more than many closed loops
It is connected with the bus of the switchyard of power distribution network trunk layer；
User's power distribution room load layer is single-trunk segmental wiring and the double spare bus mode of connection.
Further, contact point interconnection switches station is set in the middle of the closed loop of distribution trunk layer.
Further, the switchyard inlet-outlet line and segmented line of distribution trunk layer are each equipped with breaker and protection observing and controlling one
Change automatization terminal.
Further, the inlet-outlet line of the switchyard of distribution trunk layer enters eight using four and gone out or four enter the 12 wiring sides gone out
Formula, the outlet of the switchyard of distribution trunk layer as distribution time dried layer plant-grid connection point.
Further, at least four switch rooms are serially connected with each closed loop of distribution time dried layer, each switch room is using single
The bus mode of connection.
Further, switch room is configured with two and returns back out line or four return back out line or six return back out line.
Further, switch each of room returns back out the transformer that line is respectively connecting in different user's power distribution rooms.
Further, the inlet-outlet line in switch room is each equipped with breaker and protection measurement and control integration automatization terminal.
Further, major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer are configured
There is electrical power distribution automatization system.
Further, major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer are configured
There is backup auto-activating device.
For ease of understanding, the one kind provided below with reference to specific attached Example the utility model embodiment is main with lotus
The electric power system of collaboration power distribution network wiring construction is described in detail.
Referring to Fig. 1, major network low-voltage bus bar layer uses the section wiring of 8 bus 4, every section of bus has 6~8 times outgoing line intervals,
The 2 of every section of bus return back out the closed loop that line connects distribution trunk layer as electric power incoming line；Fig. 2 is 3, major network transformer station of transitional period
Transformer low voltage bus uses the section wiring schematic diagram of 6 bus 3.This kind of wiring construction when a main transformer device loses power supply, its
Two sections of equal decompressions of bus of institute's band, are now segmented after prepared auto restart action, automatically that decompression load switching is female to adjacent transformers low pressure
Line power (by the adjustment of each layer prepared auto restart actuation time, can make this layer segmentation prepared auto restart first act, accomplish whose decompression, who
Haul oneself willingly into, that is, be layered self-healing).Therefore, the on-load ability of every transformer is 66.7%, has also reached this layer of self-healing of this layer of decompression
Requirement.Fig. 3 is that 2 transformer low voltage buses of major network transformer station at initial stage use the section wiring of 4 bus 2.
Fig. 4 is referred to Fig. 8, wherein, distribution trunk layer interconnects the Y modes of connection, i.e., same transformer station using double-strand ring three
Same low-voltage bus bar two return back out line extension link several constitute one using the switchyard of single mother partition mode of connection and closed
Ring, (it should be noted that several switchyards are：Most quantity subtract one for the circuit total quantity being connected with each other, i.e., as in Fig. 4
Each closed loop be up to 6-1=5, in Fig. 5 each closed loop be up to 4-1=3, each closed loop up to 8-1 in Fig. 6~7
=7, each closed loop is up to 12-1=11 in Fig. 8.) linked together by 3 to 4 above-mentioned closed loops constitute one it is complete
Double-strand ring three interconnects Y wiring power supply units.It can be seen that distribution trunk layer closed loop sets contact point switchyard to interconnect through centre, shape
Into complete power supply unit, each closed loop is standby each other through contact point independent operating.Complete power supply unit can be by the mutual receipts or other documents in duplicate Y of double-strand ring three
It wiring and the interconnection of double-strand ring three double Y connection wire gridding Construction and operation, can also be built by many Y, can be 2 transformer stations, can also
Be switchyard quantity in Duo Zuo transformer stations, each closed loop can according to construction period different flexible configurations, reorganization and expansion flexibly, side
Just.The segmentation of each switchyard is closing position during normal operation, and each closed loop forms a kind of gridding arrangement.Distribution trunk
Layer switchyard inlet-outlet line and segmentation be each equipped with breaker and protection measurement and control integration automatization terminal, configuration segmentation prepared auto restart and
Inlet wire backup power automatic switching function.Each switchyard enters 8 using 4 and gone out or 4 enter 12 equipping rules gone out, and its outlet is used as the secondary dried layer of distribution
The plant-grid connection point of closed loop, realizes distribution trunk layer and the seamless connection of distribution time dried layer.
Interconnection between distribution trunk layer closed loop it can be seen from Fig. 4 to Fig. 8 is the transformer low voltage mother with major network transformer station
What line and distribution time dried layer were associated, i.e., with the female distribution trunk layer closed loop being connected of certain substation transformer low-pressure side 1 and offside
Substation transformer low-pressure side 1 is female and distribution trunk layer closed loops of 3 female connections are connected with each other, or with certain substation transformer low pressure
The distribution trunk layer closed loop of the female connection in side 2 and the female distribution trunk layer closed loop being connected of the mother of offside substation transformer low-pressure side 2 and 4
It is connected with each other, the advantage so connected is a certain transformer decompression or certain section of bus loss of pressure (transformer station's segmentation when transformer station 1
Hauling oneself willingly into act) or same closed loop 2 loop line roads simultaneously decompression when, connected distribution trunk layer closed loop load can be equal
Cutting, which is shifted on 2 transformer low voltage buses of offside transformer station, (by the adjustment of each layer prepared auto restart actuation time, can make this
Layer prepared auto restart first act, accomplish whose decompression, who haul oneself willingly into, that is, be layered self-healing.), can bear the band of each closed loop of distribution trunk layer
Lotus ability and the on-load ability of every transformer match, i.e., be 66.7%, have also accomplished this layer of self-healing of this layer of decompression
It is required that.
Interconnecting relation between distribution trunk layer closed loop and the annexation with major network low-voltage bus bar layer, close with the secondary dried layer of distribution
The annexation of interannular is to plan good in advance, need to progressively be deployed according to process of construction, can prevent this layer of incorrect self-healing
The mode of connection makes last layer level power equipment element overload.
Refer to Fig. 9~Figure 11, Fig. 9：4 transformer low voltage odd number buses and distribution trunk layer during 2 transformer stations of major network
Double-strand ring three interconnects double Y connection wire connected mode schematic diagram；Figure 10：Transformer low voltage odd number bus is with matching somebody with somebody during 3 transformer stations of major network
Host's dried layer double-strand ring three interconnects double Y connection wire connected mode schematic diagram；11：Transformer low voltage odd number is female during 4 transformer stations of major network
Line interconnects double Y connection wire connected mode schematic diagram with distribution trunk layer double-strand ring three.
The electric power system of this kind of wiring construction it can be seen from Fig. 9~Figure 11, be adapted to somewhere have 2 transformer stations,
The different electrical power configuration modes such as 3 transformer stations, 4 transformer stations, and the quantity of the transformer in transformer station nor affects on this confession
The use of electric system；Also layering, the active self-healing of subregion, the requirement mutually cooperateed with are met.It is more than this electric power system that each layer is matched somebody with somebody
Advanced electrical power distribution automatization system is equipped with, active, the requirement of flexible Distribution Networks Reconfiguration can be realized.
In addition, distribution time dried layer uses the interconnection collaboration power supply mode of connection more than many closed loops.Each closed loop in distribution time dried layer
4~6 switch rooms are inside serially connected with, each switch room uses single bus scheme mode, and returns back out line back into line, 4 or 6 equipped with 2, goes out
Line number amount flexible configuration as needed.Distribution time dried layer switch room inlet-outlet line is each equipped with breaker and protection measurement and control integration certainly
Dynamicization terminal.As shown in Figure 15,16, the dual power supply of each closed loop is connected in distribution trunk layer certain closed loop in distribution time dried layer
Two sections of buses of same switchyard.The 4 of each switch room return back out line and are respectively connected in different user power distribution room wherein one transformation
(user's power distribution room adds the double spare bus mode of connection, energy to device by 2 transformer configurations, its low-pressure side using single mother partition wiring
It is segmented by its low-pressure side and auxiliary bus-bar realizes prepared auto restart), each time dry ring is realized to complete by coordinating with adjacent dry ring
The dual power supply of portion user, the collaboration of the dry interannular of realization time are powered, and complete the mutual transfer of customer charge, it is desirable to mutually collaboration
Distribution time dried layer in each closed loop power supply, 1 switchyard in different closed loops in distribution trunk layer is connected to respectively, is had ready conditions
When access distribution trunk layer in different Y connection circuits.As shown in figure 12：Major network substation transformer low-voltage bus bar and distribution
1 complete wiring units that trunk layer double-strand ring three interconnects the Y modes of connection cooperate with the power supply mode of connection with the distribution time closed loop of dried layer 3
Standard connected mode schematic diagram, schemes as shown in 13,14：Major network substation transformer low-voltage bus bar and distribution trunk layer double-strand ring three
3 complete wiring units for interconnecting the Y modes of connection cooperate with power supply mode of connection standard connected mode to show with the distribution time closed loop of dried layer 3
It is intended to.
As shown in Figure 12,13,14,17,18, when the closed loop decompression of one of distribution time dried layer, its load can be by phase
The closed loop of adjacent 2 dried layer, which is divided equally, to be turned to supply, and therefore, the on-load ability of each dried layer closed loop can bring up to 66.7%, this with
The on-load ability 66.7% that distribution trunk layer double-strand ring three interconnects each closed loop in the Y modes of connection is identical, also with major network transformation
The on-load ability 66.7% of device is identical, accomplished coordinate, uniformly, layering self-healing；Furthermore it is also possible to be carried by following access way
The on-load ability of high this power distribution network time dried layer closed loop, makes for coordinating with the power distribution network trunk floor height on-load ability method of operation
With that is, such as one of them time dried layer closed loop decompression, its load can be divided equally by adjacent 3 power distribution networks time dried layer closed loop when turning to supply, then
The on-load ability of each power distribution network time dried layer closed loop can bring up to 75%, as shown in figure 19；Such as one of them dried layer closed loop
Decompression, its load can be divided equally by adjacent 4 time dried layer closed loops when turning to supply, and the on-load ability of each dried layer closed loop can be brought up to
80%, as shown in figure 20；Such as one of them dried layer closed loop decompression, its load can be divided equally by adjacent 6 dried layer closed loops to be turned to supply
When, the on-load ability of each dried layer closed loop can bring up to 85.7%, as shown in figure 21.It can be seen that by distribution trunk layer with matching somebody with somebody
The change of the arrangement density and connected mode of net time dried layer gridding, can improve the on-load energy of each distribution time dried layer closed loop
Power, and be allowed to match with distribution trunk layer.The room outlet of distribution time dried layer closed loop switch can configure voltage x current type device, possess bar
Intelligent distributed device is used during part.
It can be seen from shown in Figure 21 in the power supply mode of connection of interconnection collaboration more than many closed loops of distribution time dried layer, each distribution
The power supply of secondary dried layer closed loop can be obtained by the switchyard in different distribution trunks layer closed loop, so when some distribution trunk layer
After closed loop decompression, it, which connects distribution time dried layer closed loop institute on-load and can go to other distribution trunk layer closed loops and connect distribution time, does
Layer closed loop is powered, and can effectively prevent load layer power distribution room dual power supply while losing.Also layering, the active self-healing of subregion, phase are met
The requirement mutually cooperateed with.Each layer is each equipped with advanced electrical power distribution automatization system more than in system, can realize active, flexible distribution
Network reconfiguration requirement.
Because secondary dried layer is using multi-ring network collaboration electric power-feeding structure, when normal operation and load transfer, load current is had
Switch room bus is passed through, this point is identical with existing wiring construction, the damage that switch room bus belt comes is passed through in order to limit load current
The wiring construction measure shown in Figure 22 is taken in consumption design.
As shown in figure 22, the physical location that time dried layer switchs room bus contact line interval is limited, makes twice interconnections adjacent
Arrangement, and require that mains side interconnection closes on load arrangement.When can so ensure normal operation, load current on bus to
Both sides flowing (side is that through current, side are that this switch room load current occurs), reaches the flow direction of limitation load current, drops
The purpose of low switch station bus loss.As shown in figure 23, electric current A is electric current A-1 and A-2 sum, and electric current B is electric current B-1 and B-2
Sum, load current is effectively shunted on bus, has reached accurate load disturbance direction, drops low-loss purpose.
Figure 24 is referred to, the electric room transformer of load layer user is according to 2 configurations, and its low-pressure side (380V sides) is using single mother stock
Section wiring adds the double spare bus mode of connection.Can be by the electric room of load layer user by segmentation and stand-by power supply bus prepared auto restart mode
The load sharing of transformer decompression turns to supply, i.e., ought the wherein dry ring decompression of power distribution network 1 time or an electric room transformation of load layer user
After device decompression or a power distribution network time dried layer outlet decompression, the electric room of correspondence user has a transformer to lose power supply, its load
It is segmented to haul oneself willingly into and automatic closing turns to be divided equally by electric another of the room transformer of user and low-pressure side stand-by power supply bus respectively
Turn to supply, the dry ring institute's leading-out wire of each power distribution network time and the on-load ability of the electric room transformer of user is brought up to 66.7%.So
Both it can realize that major network transformer, distribution trunk ring, dry ring and the load layer of distribution time were satisfied by 66.7% on-load ability, realize
Each level on-load Capacity Coordination is consistent, and unpowered bottleneck can give full play to each level power supply capacity of power network.
Figure 25 is referred to, the electric room low-pressure side of load layer user adds the double spare bus mode of connection, every using single mother partition
Step down side load is divided into 2 parts, and a portion is fed out via the mother of dedicated backup 3 or 4 mothers.Wherein standby 3 female electricity
Source switch QF5 and QF6 uses bright standby mode, i.e., QF5 is closing position, QF6 in a point position when normally running；Standby 4 female power supplys are opened
Close QF8 and QF9 and also use bright standby mode, i.e., QF8 is closing position, QF9 in a point position when normally running.As the electric room of load layer user becomes
After the bus loss of pressure of depressor low-pressure side 1, then standby 3 female prepared auto restarts, which are first acted, separates QF5, then closes QF6, now 3 female institute
On-load turns to power from stand-by power supply, and then 380V is segmented prepared auto restart action and turns its another 1 halfload to power from 2 mothers, that is, passes through
Segmentation and stand-by power supply realize that decompression transformer load divides equally the on-load energy of a turn confession, so each time dry ring outlet and transformer
Power can bring up to 66.7%.Such as stand-by power supply is without electricity or its prepared auto restart tripping in said process, through 380V segmentation prepared auto restart actions
Whole loads are turned from 2 sections of bussed supplies, if now overload can be by the secondary load of overload cutoff function cut-out.On
Stating stand-by power supply is accessed by neighboring user, so by the mutual support of neighboring user, make respective on-load ability by
50% brings up to 66.7%, accomplishes mutual reciprocity and mutual benefit, as shown in figure 26.During such as normal operation, when secondary dry ring outlet and transformer
When rate of load condensate is less than 50%, such as now there is the female decompression of the electric room step down side 1 of load layer user, standby 3 female prepared auto restarts are first
It is failure to actuate, 380V segmentation prepared auto restart actions, which are first acted, turns its whole load from 2 female power supplies, it is to avoid excessive power is handed between enterprise
Change, such as 2 female no-voltages or segmentation prepared auto restart tripping, then standby 3 female prepared auto restart action, its whole load is turned to supply from stand-by power supply
Electricity, such as stand-by power supply overload can be by the secondary load of overload cutoff function cut-out.
During due to the normal operation of the electric room 380V buses of load layer and load transfer, have load current and pass through low pressure mother
Line, this puts identical with existing wiring construction, and passing through the loss that low-voltage bus bar brings to limit load current need to take such as Figure 25
Shown contact point structure measure.
As shown in figure 25, the physical location at every electric room of limitation load layer low-voltage bus bar inlet-outlet line interval, makes outgoing cloth
It is placed in service entrance switch both sides.When can so ensure normal operation, load current flows on bus to both sides, reaches that limitation is negative
Flow direction, the purpose of reduction switchyard bus loss of charged current.As shown below, electric current A is electric current A-1 and A-2 sum, electric current
B is electric current B-1 and B-2 sum, and electric current A1 is electric current A1-1 and A1-2 sum, and electric current 1B is electric current B1-1 and B1-2 sum, is born
Charged current is effectively shunted on bus, has reached accurate load disturbance direction, drops low-loss purpose.
Distribution time dried layer uses the interconnection collaboration power supply mode of connection more than many closed loops, and load layer user power distribution room uses single mother stock
Section wiring adds the double spare bus mode of connection, also meets layering, the active self-healing of subregion, the requirement mutually cooperateed with.The system with
Upper each layer is each equipped with advanced electrical power distribution automatization system, can realize active, the requirement of flexible Distribution Networks Reconfiguration.
Four layers of major network substation transformer low-voltage bus bar layer, distribution trunk layer, distribution time dried layer and power distribution room load layer are matched somebody with somebody
Power network wiring structure is as shown in figure 26.It can be seen that major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer and user's distribution
Room load four layers of coordinated of layer, make major network transformer belt load-bearing capacity, distribution trunk layer on-load ability, distribution time dried layer band
Load-bearing capacity and user's power distribution room load layer on-load ability are consistent, that is, are 66.7%.Figure 27 is referred to, is block cloth
Distribution trunk layer closed loop in meter, the interconnection collaboration power supply of distribution time dried layer closed loop and user's power distribution room load layer annexation is installed to show
It is intended to.
The electric power system of power distribution network wiring construction is cooperateed with to carry out with lotus a kind of master provided by the utility model above
Be discussed in detail, for those of ordinary skill in the art, according to the thought of the utility model embodiment, in embodiment and
It will change in application, in summary, this specification content should not be construed as to limitation of the present utility model.
Claims (12)
1. a kind of master cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that including：
Major network low-voltage bus bar layer, distribution trunk layer, distribution time dried layer, user's power distribution room load layer, the major network low-voltage bus bar layer,
The distribution trunk layer, the distribution time dried layer, user's power distribution room load layer are sequentially connected；
The major network low-voltage bus bar layer is the section wiring mode of eight bus four, the two of every section of bus of the major network low-voltage bus bar layer
Return back out the closed loop that line connects the distribution trunk layer as electric power incoming line；
The distribution trunk layer interconnects the Y modes of connection for double-strand ring three, and the interconnection Y of double-strand ring three modes of connection are specially by extremely
The two of few three same low-voltage bus bars through same transformer station return back out line extension link several connect using sectionalized single busbar connection
The closed loop of the switchyard composition of line mode connects and composes power supply unit, every section of bus of the switchyard of the distribution trunk layer it is each
One returns back out the closed loop that line connects the distribution time dried layer as electric power incoming line；
The distribution time dried layer is the interconnection collaboration power supply mode of connection more than many closed loops, each closed loop of the power distribution network time dried layer
Power supply is connected with the bus of the switchyard of power distribution network trunk layer；
The distribution transformer low-pressure side of user's power distribution room load layer is single-trunk segmental wiring and double spare bus wiring side
Formula.
2. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to match somebody with somebody
Contact point is set to interconnect the switchyard in the middle of the closed loop of host's dried layer.
3. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to match somebody with somebody
The switchyard inlet-outlet line and segmented line of host's dried layer are each equipped with breaker and protection measurement and control integration automatization terminal.
4. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to match somebody with somebody
The inlet-outlet line of the switchyard of host's dried layer enters eight using four and goes out or four enter 12 modes of connection gone out, and the distribution trunk layer is opened
The outlet for closing station is used as the plant-grid connection point of the distribution time dried layer.
5. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to match somebody with somebody
At least four switch rooms are serially connected with each closed loop of net time dried layer, each switch room uses single bus scheme mode.
6. master according to claim 5 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to open
Close room and be configured with two and return back out line or four return back out line or six return back out line.
7. master according to claim 6 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to open
Close each of room and return back out the transformer that line is respectively connecting in different user's power distribution rooms.
8. master according to claim 7 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described to open
Close room it is each return back out line and also return back out line with one of the switch room by another transformer-supplied in user's power distribution room be connected, shape
Into interconnection architecture.
9. master according to claim 7 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that the use
The distribution transformer low-pressure side of family power distribution room uses single-trunk segmental wiring and the double spare bus mode of connection, every distribution
Transformer is powered by the switch room outlet of different distributions time dried layer, the low-pressure side auxiliary bus-bar of every distribution transformer by with
What the switch room outlet of the different distributions time dried layer connected to the different distribution trunks layer that the distribution transformer is powered was powered
The low-pressure side bus of the distribution transformer of user's power distribution room are powered；
The single busbar of the low-pressure side of the distribution transformer of user's power distribution room is provided with load outlet with auxiliary bus-bar, during operation
The load capacity that four sections of buses undertake by it is identical come connected load.
10. master according to claim 5 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described
The inlet-outlet line in switch room is each equipped with breaker and protection measurement and control integration automatization terminal.
11. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described
Major network low-voltage bus bar layer, distribution trunk layer, the distribution time dried layer, user's power distribution room load layer are each equipped with distribution
Automated system.
12. master according to claim 1 cooperates with the electric power system of power distribution network wiring construction with lotus, it is characterised in that described
Major network low-voltage bus bar layer, distribution trunk layer, the distribution time dried layer, user's power distribution room load layer are each equipped with for certainly
Throw device.
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| CN201720297211.5U CN206547006U (en) | 2017-03-24 | 2017-03-24 | A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720297211.5U CN206547006U (en) | 2017-03-24 | 2017-03-24 | A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134770A (en) * | 2017-03-24 | 2017-09-05 | 广东电网有限责任公司珠海供电局 | A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus |
| CN107808574A (en) * | 2017-10-27 | 2018-03-16 | 李子虹 | Urban Medium Voltage Distribution Network power supply wire frame model |
| CN108649578A (en) * | 2018-06-28 | 2018-10-12 | 国网山东省电力公司泰安供电公司 | The grid structure adjustment of high, middle pressure city net and networking mode optimization method and device |
| CN110571800A (en) * | 2019-09-10 | 2019-12-13 | 长江勘测规划设计研究有限责任公司 | Four-power-supply four-bus point-to-point wiring power supply system |
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2017
- 2017-03-24 CN CN201720297211.5U patent/CN206547006U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134770A (en) * | 2017-03-24 | 2017-09-05 | 广东电网有限责任公司珠海供电局 | A kind of master cooperates with the electric power system of power distribution network wiring construction with lotus |
| CN107134770B (en) * | 2017-03-24 | 2023-08-29 | 广东电网有限责任公司珠海供电局 | Power supply system of main load cooperation distribution network wiring structure |
| CN107808574A (en) * | 2017-10-27 | 2018-03-16 | 李子虹 | Urban Medium Voltage Distribution Network power supply wire frame model |
| CN107808574B (en) * | 2017-10-27 | 2019-12-17 | 李子虹 | Urban medium voltage distribution network power supply network frame model |
| CN108649578A (en) * | 2018-06-28 | 2018-10-12 | 国网山东省电力公司泰安供电公司 | The grid structure adjustment of high, middle pressure city net and networking mode optimization method and device |
| CN108649578B (en) * | 2018-06-28 | 2021-04-09 | 国网山东省电力公司泰安供电公司 | Method and device for adjusting grid structure and optimizing networking mode of high and medium voltage urban network |
| CN110571800A (en) * | 2019-09-10 | 2019-12-13 | 长江勘测规划设计研究有限责任公司 | Four-power-supply four-bus point-to-point wiring power supply system |
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