CN104078945B - Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation - Google Patents
Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation Download PDFInfo
- Publication number
- CN104078945B CN104078945B CN201410356763.XA CN201410356763A CN104078945B CN 104078945 B CN104078945 B CN 104078945B CN 201410356763 A CN201410356763 A CN 201410356763A CN 104078945 B CN104078945 B CN 104078945B
- Authority
- CN
- China
- Prior art keywords
- network
- combining unit
- differential protection
- network port
- sample values
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a busbar differential protection optimization method and a busbar differential protection system for an intelligent transformer substation. The method comprises the steps of grouping merging units, arranging two network ports capable of transmitting sampling value data frames with different priorities on each merging unit according to a group of the merging unit, and connecting with two networks, and allowing busbar differential protection equipment to select the sampling value data frame with the high priority for busbar differential protection calculation when receiving the sampling value data frames with the same data content. The device comprises a busbar differential protection device and two merging unit groups, wherein each merging unit group is connected with the two networks respectively via the two network ports capable of transmitting the sampling value data frames with the different priorities, and further, the sampling value data frames with different priorities can be transmitted to the busbar differential protection device, so that the busbar differential protection equipment operates quickly. The method and the system can effectively improve the performance of a communication network of a process level, particularly has the characteristic of quick operation of busbar differential protection, and is high in efficiency and low in implementation cost.
Description
Technical field
The present invention relates to the network structure of intelligent substation, the bus differential protection optimization side of more particularly, to a kind of intelligent substation
Method and bus differential protection system.
Background technology
IEC 61850 is to propose for convenience of the management of various intelligent electronic devices in transformer station and the interconnection of equipment room
A kind of common communication standard based on universal network communication platform.Adopt in the transformer station process layer based on IEC 61850
With, under the pattern as message transmissions mode for the networking mode, message end-to-end delay characteristic is the important finger of COMMUNICATION NETWORK PERFORMANCES
Mark, the size of sampling value message network delay also will have influence on the acting characteristic of wall protection.Bus differential protection is due to collecting
Be connected to the real-time electric quantity information of each circuit of bus, contain much information and be related to sampling value message across interval transmission, because
The time delay end to end of this message is big, is unfavorable for the quick acting of bus differential protection.Network structure based on Parallel Redundancy Protocol is intelligence
Can substation communication network provide reliable Hot Spare so that intelligent substation communication network connectivty and reliability all significantly
Increase, reliability, real-time and compatibility can be taken into account it is achieved that communication network single failure zero recovery time simultaneously.
The process-level network structure of the intelligent substation based on parallel redundancy is as shown in figure 1, in figure TV, TA is mutual induction of voltage
Device summation current transformer, for gathering voltage, the current signal of power system primary side, and these electric quantity information is transferred to
Combining unit；The electric quantity information that combining unit transformer of reception transmits, merges and synchronization process, and will locate
Data signal after reason is transmitted to, according to specific format, the equipment that protection and measure and control device use；K1, K2 are breaker, for closing
Close, carry and cut-off the switching device of the electric current under normal loop condition or under abnormal loop condition；Breaker controller is to connect
Receive the breaker control information of network transmission, control the device of breaker folding；Protection and measure and control device are to complete relevant device
Relay protection function and the device of observing and controlling function；Bus differential protection device utilizes the digitized voltage of the primary side of combining unit upload
Current information is calculated, thus completing substation bus bar defencive function.Using parallel redundancy communication network, during work, merge
Unit（Merging Unit, MU）Send sampling value information to two independent process layer A, B networks simultaneously, support parallel redundancy
Agreement（Parallel Redundancy Protocol, PRP）The link redundancy control module of combining unit can be by Internet
The data issuing carries out Ethernet encapsulation, and two Frames of generation are separately sent to A net and the network of B net from different ports
On interface, in A net with B net, the data of transmission is identical.Receiving terminal（Protection and measure and control device or bus differential protection unit）With
When from A net and B net obtain sampling value message, preferentially using the sampling value information first receiving, another then abandons, if can not receive
The information of another network just alerts.When A net is similar with the structure that B nets, and when routing path is close, A net and B net have identical
Or close network performance.When data congestion, two networks can occur congestion simultaneously, and data receiver time delay now will be led to increase
Greatly.
After the electric quantity information of all line segregations that bus differential protection unit must transmit in receiving A net or B net
Bus protection computing can be carried out, simply wherein a network failure when just can utilize another redundant network data letter
Breath, rather than make full use of the electric quantity information arriving first in two networks, adopt parallel redundancy to assist therefore in intelligent substation
The communication network of view does not have the rapid action feature of the performance especially bus differential protection of lifting process layer communication network, and female poor
Protection rapid action feature be related to bus-bar fault quickly isolate and transformer station safe operation, particularly important.
Content of the invention
Present invention aim at providing a kind of bus differential protection optimization method and the bus differential protection system of intelligent substation, to solve
The performance certainly not having lifting process layer communication network using the communication network of Parallel Redundancy Protocol in intelligent substation is especially
The technical problem of the rapid action feature of bus differential protection.
For achieving the above object, the invention provides a kind of bus differential protection optimization method of intelligent substation, including following
Step：
S1：The combining unit sending sample values to bus differential protection equipment is divided into the first combining unit group and the second conjunction
And unit group, the first combining unit group and the second combining unit group all include more than one combining unit；
S2：Setting first network port and second network port in each combining unit in the first combining unit group,
Combining unit in first combining unit group is connected with first network by first network port and passes through first network to mother
Difference protection equipment sends sample values frame, and the combining unit in the first combining unit group is passed through second network port and second
Network is connected and passes through the second network and sends sample values frame to bus differential protection equipment；When encapsulating sample values, first
The priority of the sample values frame that the network port is sent to is set above the sample values that second network port sends
The priority of frame；
S3：Setting the 3rd network port and the 4th network port in each combining unit in the second combining unit group,
Combining unit in second combining unit group is connected with first network and is passed through first network to mother by the 3rd network port
Difference protection equipment sends sample values frame, is connected and passes through the second network with the second network by the 4th network port poor to mother
Protection equipment sends sample values frame；When encapsulating sample values, the sample values that the 4th network port is sent to
The priority of frame is set above the priority of the sample values frame that the 3rd network port sends；
S6：Bus differential protection equipment carries out bus differential protection calculating according to the sample values frame receiving, and is receiving data
During content identical sample values frame, choose the high sample values frame of priority and carry out bus differential protection calculating.
Improvement further as the method for the present invention：
In step S2 and step S3, the priority of the sample values frame that setting first network port sends is equal to the 4th
The priority of the sample values frame that the network port sends；And the preferential of the sample values frame that second network port sends is set
Level is equal to the priority of the sample values frame that the 3rd network port sends.
After the completion of step S3, before step S6 is carried out, the method also includes step：
S4：The network port that be connected all combining units with first network and bus differential protection device are arranged at the first void
Intend in LAN, the network port that be connected all combining units with the second network and bus differential protection device are arranged at the second void
Intend in LAN；
S5：The priority of the network port being connected with the first combining unit group in first network is set above the first net
The priority of the network port being connected with the second combining unit group in network, by be connected with the second combining unit group in the second network
The priority of the network port is set above the priority of the network port be connected in the second network with the first combining unit group.
As a total technology design, present invention also offers a kind of bus differential protection system of intelligent substation, including
The bus differential protection device being connected with first network and the second network respectively and the first combining unit group and the second combining unit
Group, the first combining unit group and the second combining unit group all include more than one combining unit；Wherein,
First network port and second network port, the first merging are provided with the combining unit in the first combining unit group
Combining unit in unit group is connected with first network by first network port and passes through first network to bus differential protection equipment
Send sample values, the combining unit in the first combining unit group is connected with the second network and is passed through by second network port
Second network sends sample values to bus differential protection equipment；The priority of the sample values frame that first network port sends is high
The priority of the sample values frame sending in second network port；
3rd network port and the 4th network port, the second merging are provided with the combining unit in the second combining unit group
Combining unit in unit group is connected with first network by the 3rd network port and passes through first network to bus differential protection equipment
Send sample values frame, the combining unit in the second combining unit group is connected with the second network and is led to by the 4th network port
Cross the second network and send sample values frame to bus differential protection equipment；4th the network port send sample values frame preferential
The priority of the sample values frame that level sends higher than the 3rd network port.
Improvement further as the system of the present invention：
The priority of the sample values frame that first network port sends is equal to the sampled value number that the 4th network port sends
The priority of the sample values frame sending according to the priority of frame, second network port is equal to adopting of the transmission of the 3rd network port
Sample value Frame priority.
Combining unit quantity in first combining unit group is less than with the difference of combining unit quantity in the second combining unit group
Equal to one.
The network port being connected with first network of all combining units and bus differential protection device are in the first virtual office together
In the net of domain, the network port being connected with the second network of all combining units and bus differential protection device are in the second virtual local area together
In net.
Combining unit in first combining unit group is connected in, by first network port, the exchange being connected with first network
On machine, and it is connected on the switch being connected with the second network by second network port；
Combining unit in second combining unit group is connected in, by the 3rd network port, the exchange being connected with first network
On machine, and it is connected on the switch being connected with the second network by the 4th network port.
The invention has the advantages that：
1st, the bus differential protection optimization method of the intelligent substation of the present invention, by network and port setting, using superfluous parallel
Co-net network transmits bus differential protection simultaneously and calculates required voltage x current information, and sends heterogeneous networks in parallel redundancy network
Same content the sample data frames different priority of setting, bus differential protection device is according to the message receiving（Sampled data
Frame）Priority difference, preferentially utilize the high message of priority, carry out after receiving the message that all combining units send
Bus differential protection calculates, and then judges bus differential protection whether action, merges as such, it is possible to reducing bus differential protection and receiving all intervals
Unit information and process time needed for these information, thus accelerating the quick acting of bus differential protection, faster isolated fault,
Can the effective performance especially bus differential protection of lifting process layer communication network rapid action feature, efficiency high and implementation cost
Low.
2nd, the bus differential protection system of the intelligent substation of the present invention, passes through dividing of combining unit in original network structure
Group and the prioritization of the network port, realize the adopting of same content sending heterogeneous networks in parallel redundancy network
The different priority of sample Frame setting is so that bus differential protection device can be according to the message receiving（Sample data frames）Excellent
The sample values frame that the different choice of first level adopts, calculates and action, faster isolated fault, efficiency of the present invention is more as soon as possible
High and implementation cost is low.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description
The accompanying drawing constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the process-level network structural representation of the intelligent substation of background technology；
Fig. 2 is the schematic flow sheet of the bus differential protection optimization method of the intelligent substation of the preferred embodiment of the present invention；
Fig. 3 is the bus differential protection system schematic of the intelligent substation of the preferred embodiment of the present invention；And
Fig. 4 is the receiving data frame queue of the network port that bus differential protection device is connected with A net in Fig. 3（Queue X）And
The receiving data frame queue of the network port being connected with B net（Queue Y）Schematic diagram.
Specific embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can be defined by the claims
Implement with the multitude of different ways covering.
Referring to Fig. 2, the bus differential protection optimization method of the intelligent substation of the present invention, comprise the following steps：
S1：The combining unit sending sample values to bus differential protection equipment is divided into the first combining unit group and the second conjunction
And unit group, the first combining unit group and the second combining unit group all include more than one combining unit.
S2：Setting first network port and second network port in each combining unit in the first combining unit group,
Combining unit in first combining unit group is connected with first network by first network port and passes through first network to mother
Difference protection equipment sends sample values frame, and the combining unit in the first combining unit group is passed through second network port and second
Network is connected and passes through the second network and sends sample values frame to bus differential protection equipment；When encapsulating sample values, first
The priority of the sample values frame that the network port is sent to is set above the sample values that second network port sends
The priority of frame.
S3：Setting the 3rd network port and the 4th network port in each combining unit in the second combining unit group,
Combining unit in second combining unit group is connected with first network and is passed through first network to mother by the 3rd network port
Difference protection equipment sends sample values frame, is connected and passes through the second network with the second network by the 4th network port poor to mother
Protection equipment sends sample values frame；When encapsulating sample values, the sample values that the 4th network port is sent to
The priority of frame is set above the priority of the sample values frame that the 3rd network port sends.
S6：Bus differential protection equipment carries out bus differential protection calculating according to the sample values frame receiving, and is receiving data
During content identical sample values frame, choose the high sample values frame of priority and carry out bus differential protection calculating.
Above step transmits bus differential protection using parallel redundancy network simultaneously and calculates required voltage x current information, and simultaneously
The sample data frames of the same content in row redundant network sending heterogeneous networks arrange different priority, bus differential protection device
According to the message receiving（Sample data frames）Priority difference, preferentially utilize the high message of priority, receive all conjunctions
And carry out bus differential protection calculating after the message that sends of unit, then judge bus differential protection whether action, as such, it is possible to reduce
Bus differential protection receives the time needed for the combining unit information of all intervals, thus accelerating the quick acting of bus differential protection, faster
Isolated fault, can the effective performance especially bus differential protection of lifting process layer communication network rapid action feature, efficiency high
And implementation cost is low.
In the present embodiment, above method also can carry out following optimization and improvement.
In step S2 and step S3, the priority of the sample values frame that setting first network port sends is equal to the 4th
The priority of the sample values frame that the network port sends；And the preferential of the sample values frame that second network port sends is set
Level is equal to the priority of the sample values frame that the 3rd network port sends.So calculate required owning by carrying out bus differential protection
The information of combining unit is divided into two parts and in first network（A net）With the second network（B net）Middle simultaneous transmission, priority only needs to set
Put two different ranks, decrease the time of data processing.
After the completion of step S3, before step S6 is carried out, above method may also include step：
S4：The network port that be connected all combining units with first network and bus differential protection device are arranged at the first void
Intend in LAN, the network port that be connected all combining units with the second network and bus differential protection device are arranged at the second void
Intend in LAN.
S5：The priority of the network port being connected with the first combining unit group in first network is set above the first net
The priority of the network port being connected with the second combining unit group in network, by be connected with the second combining unit group in the second network
The priority of the network port is set above the priority of the network port be connected in the second network with the first combining unit group.
So, by the setting of the setting of different priorities, the division of combining unit and VLAN and the network port
Coupling cooperation, the information of all combining units carrying out needed for bus differential protection calculates is divided into two parts and in first network（A net）
With the second network（B net）Middle simultaneous transmission, decreases the time of information transfer, so that bus differential protection can receive faster
Required combining unit information, and quickly processed and protect judgement by the identification of priority, can isolated fault faster.
Referring to Fig. 3, Fig. 4, the bus differential protection system of the intelligent substation of the present invention, including respectively with first network（This reality
Apply in example, the A net in as Fig. 3）With the second network（B net in the present embodiment, in as Fig. 3）Connected bus differential protection dress
Put and the first combining unit group（A1, a2 and a3 in the present embodiment, in as Fig. 3）With the second combining unit group（This enforcement
In example, b1, b2 and b3 in as Fig. 3）, the first combining unit group and the second combining unit group all include more than one merging
Unit；Wherein, the combining unit in the first combining unit group is provided with first network port and second network port, the first conjunction
And the combining unit in unit group is connected with first network by first network port and is set to bus differential protection by first network
Preparation send sample values, and the combining unit in the first combining unit group is connected with the second network and is led to by second network port
Cross the second network and send sample values to bus differential protection equipment；The priority of the sample values frame that first network port sends
（Referring to Fig. 3, in the present embodiment, priority is set to 6）The priority of the sample values frame sending higher than second network port
（Referring to Fig. 3, in the present embodiment, priority is set to 5）；It is provided with the 3rd network in combining unit in second combining unit group
Port and the 4th network port, the combining unit in the second combining unit group is connected simultaneously with first network by the 3rd network port
Sample values frame is sent to bus differential protection equipment by first network, the combining unit in the second combining unit group passes through the 4th
The network port is connected with the second network and passes through the second network and sends sample values frame to bus differential protection equipment；4th network-side
The priority of the sample values frame that mouth sends（Referring to Fig. 3, in the present embodiment, priority is set to 6）Higher than the 3rd network-side
The priority of the sample values frame that mouth sends（Referring to Fig. 3, in the present embodiment, priority is set to 5）.
The bus differential protection system of said structure can preferentially utilize priority high according to the difference of the priority receiving message
Message, carries out bus differential protection calculating after receiving the message that all combining units send, then judge whether bus differential protection moves
Make, as such, it is possible to reduce bus differential protection and receiving all interval combining unit information and process time needed for these information,
Thus accelerating the quick acting of bus differential protection, faster isolated fault.
In the present embodiment, the priority of the sample values frame that first network port sends is equal to the 4th network port and sends
Sample values frame priority, second the network port send sample values frame priority be equal to the 3rd network port
Transmission sample values frame priority.So can achieve the letter of all combining units carrying out needed for bus differential protection calculates
Breath is divided into two parts and in first network（A net）With the second network（B net）Middle simultaneous transmission（Transfer process is referring to the arrow in Fig. 3
Shown）, priority only needs to arrange two different ranks, decreases the time of data processing.
In the present embodiment, combining unit quantity in the first combining unit group and combining unit number in the second combining unit group
Amount difference be less than or equal to one, when combining unit total quantity be even number when, the combining unit quantity in the first combining unit group with
In second combining unit group, combining unit quantity is equal, when the total quantity of combining unit is odd number, in the first combining unit group
Combining unit quantity differ one with combining unit quantity in the second combining unit group.
In the present embodiment, the network port being connected and the bus differential protection device with first network of all combining units are in together
In first VLAN, the network port being connected with the second network of all combining units and bus differential protection device are in together
In two VLANs.So setting ensure that corresponding combining unit information is only transmitted in corresponding VLAN, keeps away
Exempt from the generation of network storm.
In actual use, in order to easy to connect, generally internetwork connection is realized by switch,.In the present embodiment,
Combining unit in first combining unit group can be connected on the switch being connected with first network by first network port,
And be connected on the switch being connected with the second network by second network port；Combining unit in second combining unit group is led to
Cross the 3rd network port to be connected on the switch being connected with first network, and be connected in and the second net by the 4th network port
On the switch that network is connected.
In sum, the bus differential protection system of the intelligent substation of the present invention, by the division of combining unit, the network port
With settings such as VLANs so that bus differential protection device can be according to the difference of the priority receiving message, preferentially using preferential
The high message of level（Referring to Fig. 4, in figure two queues X, Y represent the combining unit Frame of the transmission in A net, B net according to preferential
Level reaches the order of bus differential protection equipment；In X queue, the sampling value information that sent to A network due to a1, a2 and a3 combining unit
Priority be higher than b1, b2 and b3 combining unit to A network send information priority, therefore a1, a2 and a3 combining unit letter
Breath reaches bus differential protection equipment prior to b1, b2 and b3 combining unit；Because priority is identical, the arrangement between a1, a2 and a3 is suitable
Putting in order between sequence and b1, b2 and b3 is random, and in Y queue, combining unit send information to and reaches order in the same manner.）,
Carry out bus differential protection calculating after receiving the message that all combining units send, then judge bus differential protection whether action, this
Sample, it is possible to reduce bus differential protection receives all interval combining unit information and processes time needed for these information, thus
Accelerate the quick acting of bus differential protection, faster isolated fault.The present invention can effectively lifting process layer communication network performance outstanding
It is the rapid action feature of bus differential protection, efficiency high and implementation cost is low.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of bus differential protection optimization method of intelligent substation is it is characterised in that comprise the following steps：
S1：The combining unit sending sample values to bus differential protection equipment is divided into the first combining unit group and second to merge single
Tuple, described first combining unit group and the second combining unit group all include more than one combining unit；
S2：Setting first network port and second network port in each combining unit in described first combining unit group,
Combining unit in described first combining unit group is connected with first network by first network port and passes through described first
Network sends sample values frame to bus differential protection equipment, and the combining unit in described first combining unit group is passed through the second net
Network port is connected with the second network and passes through described second network and sends sample values frame to bus differential protection equipment；Adopt in encapsulation
During sample value data, the priority of the sample values frame that described first network port is sent to is set above described second net
The priority of the sample values frame that network port sends；
S3：Setting the 3rd network port and the 4th network port in each combining unit in described second combining unit group,
Combining unit in described second combining unit group is connected with first network and is passed through described first by the 3rd network port
Network sends sample values frame to bus differential protection equipment, is connected and passes through described the with the second network by the 4th network port
Two networks send sample values frame to bus differential protection equipment；Encapsulate sample values when, described 4th network port by its
The priority of the sample values frame sending is set above the preferential of the sample values frame that described 3rd network port sends
Level；
In described step S2 and described step S3, the priority of the sample values frame that the described first network port of setting sends
The priority of the sample values frame sending equal to described 4th network port；And adopting of described second network port transmission is set
The priority of sample value Frame is equal to the priority of the sample values frame that described 3rd network port sends；
S6：Described bus differential protection equipment carries out bus differential protection calculating according to the sample values frame receiving, and is receiving data
During content identical sample values frame, choose the high sample values frame of priority and carry out bus differential protection calculating.
2. bus differential protection optimization method according to claim 1 is it is characterised in that after the completion of described step S3, described
Before step S6 is carried out, methods described also includes step：
S4：The network port that be connected all combining units with described first network and bus differential protection device are arranged at the first void
Intend in LAN, the network port that be connected all combining units with described second network and bus differential protection device are arranged at the
In two VLANs；
S5：The priority of the network port being connected with described first combining unit group in described first network is set above institute
State the priority of the network port being connected in first network with the second combining unit group, by described second network with described second
The priority of the network port that combining unit group is connected is set above being connected with the first combining unit group in described second network
The network port priority.
3. a kind of intelligent substation bus differential protection system it is characterised in that
Including the bus differential protection device being connected with first network and the second network respectively and the first combining unit group and the second conjunction
And unit group, described first combining unit group and the second combining unit group all include more than one combining unit；Wherein,
First network port and second network port be provided with the combining unit in described first combining unit group, described first
Combining unit in combining unit group is connected with described first network by described first network port and passes through described first net
Network sends sample values to bus differential protection equipment, and the combining unit in described first combining unit group passes through described second network
Port is connected with described second network and passes through described second network and sends sample values to bus differential protection equipment；Described first
The priority of the sample values frame that the network port sends is higher than the excellent of the sample values frame that described second network port sends
First level；
3rd network port and the 4th network port be provided with the combining unit in described second combining unit group, described second
Combining unit in combining unit group is connected with described first network and is passed through described first net by described 3rd network port
Network sends sample values frame to bus differential protection equipment, and the combining unit in described second combining unit group passes through described 4th net
Network port is connected with described second network and passes through described second network and sends sample values frame to bus differential protection equipment；Described
The priority of the sample values frame that the 4th network port sends is higher than the sample values frame that described 3rd network port sends
Priority；
The priority of the sample values frame that described first network port sends is equal to the sampling that described 4th network port sends
The priority of Value Data frame, the priority of the sample values frame that described second network port sends is equal to described 3rd network-side
The sample values frame priority of the transmission of mouth.
4. bus differential protection system according to claim 3 it is characterised in that
The difference of combining unit quantity in combining unit quantity in described first combining unit group and described second combining unit group
Less than or equal to one.
5. bus differential protection system according to claim 3 it is characterised in that
The network port being connected with described first network of all combining units and bus differential protection device are in the first virtual office together
In the net of domain, it is virtual that the network port being connected with described second network of all combining units and bus differential protection device are in second together
In LAN.
6. bus differential protection system according to claim 3 it is characterised in that
Combining unit in described first combining unit group is connected in by first network port and to be connected with described first network
On switch, and it is connected on the switch being connected with the second network by second network port；
Combining unit in described second combining unit group is connected in, by the 3rd network port, the exchange being connected with first network
On machine, and it is connected on the switch being connected with the second network by the 4th network port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356763.XA CN104078945B (en) | 2014-07-25 | 2014-07-25 | Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410356763.XA CN104078945B (en) | 2014-07-25 | 2014-07-25 | Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104078945A CN104078945A (en) | 2014-10-01 |
| CN104078945B true CN104078945B (en) | 2017-02-15 |
Family
ID=51600055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410356763.XA Expired - Fee Related CN104078945B (en) | 2014-07-25 | 2014-07-25 | Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104078945B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031722B (en) * | 2019-04-03 | 2021-08-31 | 郑州轨道交通信息技术研究院 | Processing method and device for real-time fault report adhesion |
| CN113872145B (en) * | 2021-09-24 | 2024-01-23 | 贵州电网有限责任公司 | Novel chip architecture-based relay protection method and system for power system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201774313U (en) * | 2010-06-07 | 2011-03-23 | 许继集团有限公司 | Process layer combining unit |
| CN103633741A (en) * | 2013-12-05 | 2014-03-12 | 长园深瑞继保自动化有限公司 | Intelligent substation sampled value network data switching method and device |
-
2014
- 2014-07-25 CN CN201410356763.XA patent/CN104078945B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201774313U (en) * | 2010-06-07 | 2011-03-23 | 许继集团有限公司 | Process layer combining unit |
| CN103633741A (en) * | 2013-12-05 | 2014-03-12 | 长园深瑞继保自动化有限公司 | Intelligent substation sampled value network data switching method and device |
Non-Patent Citations (3)
| Title |
|---|
| 基于优先级标签的变电站过程层交换式以太网的信息传输方案;辛建波等;《电网技术》;20050113;第28卷(第22期);第26页第2栏第2段，第28页第2栏第4段 * |
| 基于并行冗余协议的高可靠性过程总线通信协议研究;莫峻等;《电工技术学报》;20120430;第27卷(第4期);参见第265页，图5 * |
| 智能变电站SV网数据交换装置设计;徐成斌;《电力系统自动化》;20130710;第37卷(第13期);参见第101页，图2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104078945A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102833112B (en) | Communication management machine having looped network function | |
| CN102571426B (en) | Double-homing protection method and device | |
| EP2695340B1 (en) | Utility communication method and system | |
| CN107851109A (en) | The configuration of software defined network | |
| EP3082309A1 (en) | Sdn controller, data centre system and router connection method | |
| CN102882719B (en) | Method and system for implementation of redundant backup of controllers in Openflow switch system | |
| CN102984057B (en) | A kind of Multi-service integration dual-redundancy network system | |
| CN102821050A (en) | Processing method for applying rapid spanning tree protocol to monocyclic network topology | |
| CN106559254A (en) | SDN multiple-domain networks device and implementation method based on both-end mouth switch | |
| CN109218061A (en) | The failure notification and acquisition methods, device, communication equipment of flexible Ethernet | |
| CN102185387A (en) | Triple play method of process layer in intelligent substation | |
| WO2014132967A1 (en) | Communication system, switch, control apparatus, control channel configuration method and program | |
| CN105553795B (en) | A method of the transmission standard Ethernet data in Industrial Ethernet | |
| CN104078945B (en) | Busbar differential protection optimization method and busbar differential protection system for intelligent transformer substation | |
| CN104184637B (en) | Fully-mechanized mining working data transmission system and its data transmission method | |
| CN106385013B (en) | The fault location shielding system and its working method of the adaptive power distribution network method of operation | |
| AU2018443502B2 (en) | Power distribution virtual networking | |
| CN101547131B (en) | EAPS looped network single-channel fault location and protection method | |
| CN106410807A (en) | Method for transmitting four kinds of messages of intelligent substation in one physical network based on annular networking | |
| CN104333205B (en) | A kind of converter valve level control device for flexible AC transmission | |
| CN111030910A (en) | Method and system for monitoring communication state of ring network node, measurement and control device and local module | |
| CN204928874U (en) | A communication equipment that be used for can redundant operation industry communications network | |
| CN103067151B (en) | A kind of maintenance is by the devices and methods therefor of tandem link two ends state synchronized | |
| CN101938412A (en) | Ethernet data and asynchronous data are isolated the electric power Ethernet switch of simultaneous interpretation | |
| CN106451383A (en) | Blocking pilot protection method suitable for closed loop operation cable distribution loop network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 Termination date: 20170725 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |