CN102709889A - Self-healing method and self-healing system for faults of power distribution network - Google Patents
Self-healing method and self-healing system for faults of power distribution network Download PDFInfo
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- CN102709889A CN102709889A CN2012101691686A CN201210169168A CN102709889A CN 102709889 A CN102709889 A CN 102709889A CN 2012101691686 A CN2012101691686 A CN 2012101691686A CN 201210169168 A CN201210169168 A CN 201210169168A CN 102709889 A CN102709889 A CN 102709889A
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- 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
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- 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
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- 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
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention provides a self-healing method and a self-healing system for faults of a power distribution network, relates to a power electric system, and particularly relates to a fault processing system and a fault processing method of a power grid. The method comprises the followings steps: A. a terminal device is installed at each switch node on the power distribution network, and information interaction is performed between the terminal devices an Ethernet; B. when the power distribution network is in fault, the fault information detected by the terminal is transmitted to an adjacent terminal by each terminal; and C. whether the tripping operation or switch-on operation is carried out or not is judged by the terminals according to the received information or the fault information detected by the terminals, wherein the fault positioning and the fault isolation are realized by the terminal device which is installed at a sectional switch; and the fault recovery is realized by switch-on operation of the terminal device installed at an interconnection switch. With the adoption of the self-healing method and the self-healing system, the power supply reliability of the power distribution network is improved effectively; the automatic fault identification, automatic fault isolation and automatic power supply recovery at a non-fault area of the power distribution network can be realized; and the security operation of a power system is ensured.
Description
Technical field
The present invention relates to the electric power electric system, particularly the fault handling method of electrical network and system.
Background technology
Along with rapid development of economy, society is increasing to the demand of electric power, and power consumer is also increasingly high to the requirement of the aspects such as power supply reliability, the quality of power supply, operating efficiency and good service of power distribution network.Utilize modern electronic technology, the communication technology, computer and network technology, it is the development trend of intelligent grid that power distribution network is organically merged the improvement power supply quality in the normal work management that reaches monitoring, protection, control, metering and power supply department under the accident conditions.
The fault self-recovery system can detect the identification electric network fault automatically, isolate electric network fault and recover the mains supply of non-faulty section automatically automatically, can improve the power supply quality of distribution network greatly, and it occupies critical role in electrical power distribution automatization system.But existing fault self-healing system or too rely on communication network, or can only realize that the fault self-recovery of simple net shelf structure and failure recovery time are longer, also do not have to be adapted to the distribution fault self-recovery system under the various complicated power distribution network framework situation at present.
Summary of the invention
The present invention is directed to the existing deficiency that exists of using; Provide a kind of and realize the intelligent grid distribution method and system of the handling failure of control automatically based on the modeling of IEC61850 standard; Be applicable to that promptly traditional distribution network also is applicable to the intelligent grid distribution network simultaneously, the isolated fault and the recovered failure of the present invention's ability quickly, efficiently and accurately.
One of the object of the invention is to provide a kind of power distribution network failure self-healing method of can fast and reliable identification the whole network abort situation and carrying out Fault Isolation, recovery operation.
Two of the object of the invention is to provide a kind of power distribution network failure self-healing system of can fast and reliable identification the whole network abort situation and carrying out Fault Isolation, recovery operation.
One of the object of the invention can be realized like this, designs a kind of power distribution network failure self-healing method, may further comprise the steps:
A, segmentation place is provided with block switch on distribution network, between the plurality of segments switch, interconnection switch is set, and each switch is corresponding installs a terminal equipment, and the information exchange between the terminal equipment is through the IEC61850 protocol transmission;
B, when distribution network breaks down, each terminal equipment sends the fault message that itself detects through GOOSE and gives neighboring terminals equipment;
C, terminal equipment judge whether to trip or closing operation according to its information of receiving and detected fault message itself; Wherein fault location and Fault Isolation realize that by the block switch terminal equipment fault recovery is carried out closing operation by the interconnection switch terminal equipment and realized;
The action logic of Fault Isolation is: when the block switch terminal equipment detects short trouble, receive that simultaneously the mains side block switch has fault-signal, receive that the load side block switch does not have the short trouble signal, then jumps this segmentation switch; Perhaps this switch terminal equipment does not detect short trouble, receives that the mains side block switch has fault-signal, then jumps this segmentation switch;
The action logic of fault recovery is: have and press a side not have pressures, this terminal equipment not detect short trouble, do not receive the locking fault recovery signal that other terminal equipment sends, the fault recovery enabling signal of receiving the transmission of other-end equipment, then close this interconnection switch when the interconnection switch terminal equipment detects a side.
Two of the object of the invention can be realized like this, designs a kind of power distribution network failure self-healing system, comprises block switch, block switch terminal equipment, interconnection switch, interconnection switch terminal equipment and Ethernet,
Block switch is arranged on segmentation place on the electric power networks, the corresponding terminal equipment of installing of each block switch;
Interconnection switch is provided with between the plurality of segments switch, the corresponding terminal equipment of installing of each interconnection switch;
Ethernet is used for the transmission of the information data between the terminal equipment;
The GOOSE communication mechanism of IEC61850 standard communication protocol is adopted in the terminal equipment information exchange; Terminal equipment GOOSE opens into empty terminal and is mains side short-circuit signal, load side short-circuit signal 01, load side short-circuit signal 02, load side short-circuit signal 03, starts fault recovery signal and locking fault recovery signal, and terminal equipment GOOSE leaves empty terminal and is this terminal equipment failure signal, startup fault recovery signal and locking fault recovery signal.
The present invention can effectively improve the power supply reliability of distribution network, realizes that the fault of distrbution network is discerned automatically, fault is isolated automatically and the automatic power of non-faulty section recovers, and guarantees safe operation of power system.
Description of drawings
Fig. 1 is the network architecture sketch map of one of preferred embodiment of the present invention;
Fig. 2 is two a network architecture sketch map of preferred embodiment of the present invention.
Embodiment
Below in conjunction with embodiment the present invention is done further description.
A kind of power distribution network failure self-healing method may further comprise the steps:
A, segmentation is provided with block switch on distribution network, between the plurality of segments switch, interconnection switch is set, and each switch correspondence is provided with a terminal equipment, and the information exchange between the terminal equipment is through the Ethernet transmission;
B, when distribution network breaks down, each terminal equipment sends the fault message that itself detects and gives neighboring terminals equipment;
C, terminal equipment judge whether to trip or closing operation according to its information of receiving and detected fault message itself, and wherein fault location and Fault Isolation are realized by block switch, and fault recovery is closed a floodgate by interconnection switch and realized;
The action logic of fault self-recovery is mainly rapid in two steps, i.e. Fault Isolation and fault recovery.
The action logic of Fault Isolation is: when the block switch terminal equipment detects short trouble, receive that the mains side block switch has fault-signal, receive that the load side block switch does not have the short trouble signal, then jumps this segmentation switch; Perhaps this switch does not detect short trouble, receives that the mains side block switch has fault-signal, then jumps this segmentation switch;
The action logic of fault recovery is: have pressure one side not have pressure, receive that other installs the no locking fault recovery signal of transmission, receives sides adjacent fault-free signal and enabling signal, then closes this interconnection switch when interconnection switch detects a side.
This fault self-recovery system adopts the communication of IEC61850 communication protocol, and the GOOSE Communication Realization is adopted in the terminal equipment information exchange, and its fault self-recovery can be realized failure location, isolation and recovery at a terrific speed according to block switch and interconnection switch separate processes.When distribution network breaks down; Each terminal equipment can send the fault message that itself detects with the GOOSE mode and give neighboring terminals equipment; Terminal equipment judges comprehensively according to its information of receiving and detected fault message itself whether conclusive judgement trips and closing operation.
The block switch action logic:
Fault location and Fault Isolation are realized that by block switch it discharges and recharges with operation condition following:
Charge condition:, remote operation pattern no abnormal, this segmentation switch when the GOOSE communication be in close the position, there is pressure both sides, involution and duration reach the charging of charging time limit and accomplish for this switch fault-free and fault-signal.
Discharge when following arbitrary condition is arranged: GOOSE communication abnormality, local operation pattern, this segmentation switch are in branch position and electric voltage exception.
Operation condition 1: charging is accomplished, and this switch detects short trouble, and the mains side block switch has fault or mains side not to have block switch, and the load side block switch does not have short trouble or the zero load switch of load side, then jumps this switch by definite value.If operation condition disappears between time delay, then return charged state.
Operation condition 2: charging is accomplished, and this switch does not detect short trouble, and the mains side block switch has fault, then jumps this switch by definite value.If operation condition disappears between time delay, then return charged state.
Tripping operation is carried out the back and is judged: continue to declare whether displacement of switch after the tripping operation, if displacement success then generate fault separating brake incident within a certain period of time, and interconnection switch would be sent out interconnection switch combined floodgate enabling signal.If also not displacement of switch within a certain period of time then generates the Fault Isolation turkey, and interconnection switch is sent out interconnection switch closing locking signal.
The interconnection switch action logic:
Fault recovery is closed a floodgate by interconnection switch and is realized that it discharges and recharges with operation condition following:
Charge condition: all have and press and the duration reaches and fills the time limit charging and accomplish when GOOSE transmitting-receiving is normal, remote operation pattern, this isolating switch are in branch position, both sides.
Discharge when following arbitrary condition is arranged: GOOSE communication abnormality, local operation pattern, mains side or load side have fault, this segmentation switch to be in to close position and electric voltage exception.
Operation condition: interconnection switch detects a side has the interconnection switch combined floodgate enabling signal of pressing a side not have pressure, receiving sides adjacent fault-free signal and receiving other terminal equipment transmission, and then trigger closes a floodgate, and does not satisfy condition in the time-delay and then returns charged state.When many interconnection switches, distinguish successively through the time-delay definite value, after an interconnection switch closed a floodgate successfully, other related interconnection switch is the discharge off logic automatically.
Close a floodgate carrying out the back judges: continue to declare whether displacement of switch behind the combined floodgate, if displacement success then generate fault recovery success incident within a certain period of time if also not displacement of switch within a certain period of time then generates the fault recovery turkey, and is regained the outlet of closing a floodgate.
The relevant GOOSE of terminal equipment opens into empty terminal and is: mains side short-circuit signal, load side short-circuit signal 01, load side short-circuit signal 02, load side short-circuit signal 03, startup fault recovery signal and locking fault recovery signal (useful when being operated in interconnection switch);
The relevant GOOSE of terminal equipment leaves empty terminal and is: this terminal equipment failure signal, startup fault recovery signal and locking fault recovery signal.
Embodiment one, and is as shown in Figure 1, is the terminal equipment distributed fault self-healing main electrical scheme GOOSE network architecture of handing in hand.
To main electrical scheme GOOSE configuration hand in hand.To the empty terminal arrangement of the GOOSE of block switch 1, mains side short-circuit signal: do not connect load side short-circuit signal 1: connect the short-circuit signal of block switch 2, load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; To the empty terminal arrangement of the GOOSE of block switch 2, mains side short-circuit signal: connect the short-circuit signal of block switch 1, load side short-circuit signal 1: connect the short-circuit signal of block switch 3, load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; To the empty terminal arrangement of the GOOSE of block switch 3, mains side short-circuit signal: connect the short-circuit signal of block switch 2, load side short-circuit signal 1: do not connect load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; To the empty terminal arrangement of the GOOSE of block switch 4, mains side short-circuit signal: connect the short-circuit signal of block switch 5, load side short-circuit signal 1: do not connect load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; To the empty terminal arrangement of the GOOSE of block switch 5, mains side short-circuit signal: do not connect load side short-circuit signal 1: connect the short-circuit signal of block switch 4, load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; To the empty terminal arrangement of the GOOSE of interconnection switch 1; Mains side short-circuit signal: the short-circuit signal that connects block switch 2; Load side short-circuit signal 1: the short-circuit signal that connects block switch 4; Load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect enabling signal: the startup fault recovery signal and the locking fault recovery signal of all block switches are introduced.
If short circuit between transformer station 1 and the block switch 1, the self-healing process of system: belong to the protection range of transformer station, terminal equipment need not to realize self-healing.
If short circuit between block switch 1 and the block switch 2, the self-healing process of system.On-load switch 1: the zero load switch of mains side, load side does not have short-circuit signal, and self detects short circuit, meets operation condition 1, and this switch is jumped in time-delay; On-load switch 2: mains side has short-circuit signal, and self does not detect short circuit, meets operation condition 2, and this switch is jumped in time-delay; Other on-load switch: do not meet operation condition; Interconnection switch: after on-load switch 1 action, meet operation condition, this switch is closed in time-delay.
If short circuit between block switch 2 and the block switch 3, the self-healing process of system.On-load switch 1: the zero load switch of mains side, load side has short-circuit signal, and self detects short circuit, does not meet operation condition; On-load switch 2: mains side has short-circuit signal, and self detects short circuit, and load side does not have short-circuit signal, meets operation condition 1, and this switch is jumped in time-delay; On-load switch 3: mains side has short-circuit signal, and self does not detect short circuit, meets operation condition 2, and this switch is jumped in time-delay; Other on-load switch: do not meet operation condition; Interconnection switch: after on-load switch 1 action, meet operation condition, this switch is closed in time-delay.
If short circuit between block switch 3 and the interconnection switch, the self-healing process of system.On-load switch 1: the zero load switch of mains side, load side has short-circuit signal, and self detects short circuit, does not meet operation condition; On-load switch 2: mains side has short-circuit signal, and self detects short circuit, and load side has short-circuit signal, does not meet operation condition; This switch is jumped in time-delay; On-load switch 3: mains side has short-circuit signal, and self detects short circuit, and the zero load switch of load side meets operation condition 1, and this switch is jumped in time-delay; Other on-load switch: do not meet operation condition; Interconnection switch: receive the short-circuit signal of adjacent switch and discharge, can't close a floodgate.
Other place is short-circuited or the interconnection switch both sides are short-circuited simultaneously, and the self-healing process of system is similar.
Embodiment two, and is as shown in Figure 2, different to many power connections, and Fig. 2 connects mode for complicated T, and other wiring is similar.
GOOSE configuration is to the empty terminal arrangement of the GOOSE of block switch 1: mains side short-circuit signal: do not connect load side short-circuit signal 1: connect the short-circuit signal of block switch 2, load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; GOOSE void terminal arrangement to block switch 2: mains side short-circuit signal: the short-circuit signal that connects block switch 1; Load side short-circuit signal 1: the short-circuit signal that connects block switch 3; Load side short-circuit signal 2: connect the short-circuit signal of block switch 5, load side short-circuit signal 3: the short-circuit signal that connects block switch 7; GOOSE void terminal arrangement to block switch 3: mains side short-circuit signal: connect the short-circuit signal of block switch 2, load side short-circuit signal 1: do not connect load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; GOOSE void terminal arrangement to block switch 4: with the configuration of embodiment one; GOOSE void terminal arrangement to block switch 5: mains side short-circuit signal: connect the short-circuit signal of block switch 2, load side short-circuit signal 1: do not connect load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; GOOSE void terminal arrangement to block switch 6: with the configuration of embodiment one; GOOSE void terminal arrangement to block switch 7: mains side short-circuit signal: connect the short-circuit signal of block switch 2, load side short-circuit signal 1: do not connect load side short-circuit signal 2: do not connect load side short-circuit signal 3: do not connect; GOOSE void terminal arrangement to block switch 8: with the configuration of embodiment one; GOOSE void terminal arrangement to interconnection switch 1: mains side short-circuit signal: the short-circuit signal that connects block switch 3; Load side short-circuit signal 1: the short-circuit signal that connects block switch 4; Load side short-circuit signal 2: do not connect; Load side short-circuit signal 3: do not connect enabling signal and block signal: the startup fault recovery signal and the locking fault recovery signal of block switch 1,2,3,4 are introduced; GOOSE void terminal arrangement to interconnection switch 2: mains side short-circuit signal: the short-circuit signal that connects block switch 5; Load side short-circuit signal 1: the short-circuit signal that connects block switch 6; Load side short-circuit signal 2: do not connect; Load side short-circuit signal 3: do not connect enabling signal and block signal: the startup fault recovery signal and the locking fault recovery signal of block switch 1,2,5,6 are introduced; GOOSE void terminal arrangement to interconnection switch 3: mains side short-circuit signal: the short-circuit signal that connects block switch 7; Load side short-circuit signal 1: the short-circuit signal that connects block switch 8; Load side short-circuit signal 2: do not connect; Load side short-circuit signal 3: do not connect enabling signal and block signal: the startup fault recovery signal and the locking fault recovery signal of block switch 1,2,7,8 are introduced.
If short circuit between transformer station 1 and the block switch 1, the self-healing process of system: with embodiment one.
If short circuit between block switch 1 and the block switch 2, the self-healing process of system: with embodiment one.
If short circuit between block switch 2 and the block switch 3, the self-healing process of system.On-load switch 1: the zero load switch of mains side, load side has short-circuit signal, and self detects short circuit, does not meet operation condition; On-load switch 2: mains side has short-circuit signal, and self detects short circuit, and load side does not have short-circuit signal, meets operation condition 1, and this switch is jumped in time-delay; On-load switch 3: mains side has short-circuit signal, and self does not detect short circuit, meets operation condition 2, and this switch is jumped in time-delay; On-load switch 4: mains side has short-circuit signal, and self does not detect short circuit, meets operation condition 2, and this switch is jumped in time-delay; On-load switch 5: mains side has short-circuit signal, and self does not detect short circuit, meets operation condition 2, and this switch is jumped in time-delay; Other on-load switch: do not meet operation condition; Interconnection switch 1: after on-load switch 2 actions, meet operation condition, this switch is closed in time-delay; Interconnection switch 2: after on-load switch 2 actions, meet operation condition, this switch is closed in time-delay; Interconnection switch 3: after on-load switch 2 actions, meet operation condition, this switch is closed in time-delay.
Other place is short-circuited or the interconnection switch both sides are short-circuited simultaneously, and the self-healing process of system is similar.
A kind of power distribution network failure self-healing system comprises block switch, interconnection switch, terminal equipment, Ethernet; Block switch is arranged on the electric power networks; Interconnection switch is provided with between the plurality of segments switch; Terminal equipment, each block switch and interconnection switch are corresponding respectively to be provided with; Ethernet is used for the transmission of the information data between the terminal equipment;
The GOOSE communication mechanism is adopted in the terminal equipment information exchange; Terminal equipment GOOSE opens into empty terminal and is mains side short-circuit signal, load side short-circuit signal 01, load side short-circuit signal 02, load side short-circuit signal 03, starts fault recovery signal and locking fault recovery signal, and terminal equipment GOOSE leaves empty terminal and is this terminal equipment failure signal, startup fault recovery signal and locking fault recovery signal.
Said terminal equipment adopts the double-core CPU of integrated high primary frequency ARM9+32 position high-speed dsp and inner LVDS data communication bus to carry out sending in data sampling and the processing.
The present invention adopts the modeling of IEC61850 standard; And be applicable to the band distributed power source the intelligent power distribution net; Utilize the GOOSE communication mode to realize the data interaction between the terminal equipment, terminal equipment can fast and reliable be discerned the whole network abort situation, and carries out Fault Isolation and failure recovery operation.Thereby improve the reliability of power supply, guarantee power grid security.
Claims (7)
1. power distribution network failure self-healing method is characterized in that may further comprise the steps:
A, segmentation place is provided with block switch on distribution network, between the plurality of segments switch, interconnection switch is set, and each switch is corresponding installs a terminal equipment, and the information exchange between the terminal equipment is through the IEC61850 protocol transmission;
B, when distribution network breaks down, each terminal equipment sends the fault message that itself detects through GOOSE and gives neighboring terminals equipment;
C, terminal equipment judge whether to trip or closing operation according to its information of receiving and detected fault message itself; Wherein fault location and Fault Isolation realize that by the block switch terminal equipment fault recovery is carried out closing operation by the interconnection switch terminal equipment and realized;
The action logic of Fault Isolation is: when the block switch terminal equipment detects short trouble, receive that simultaneously the mains side block switch has fault-signal, receive that the load side block switch does not have the short trouble signal, then jumps this segmentation switch; Perhaps this switch terminal equipment does not detect short trouble, receives that the mains side block switch has fault-signal, then jumps this segmentation switch;
The action logic of fault recovery is: have and press a side not have pressures, this terminal equipment not detect short trouble, do not receive the locking fault recovery signal that other terminal equipment sends, the fault recovery enabling signal of receiving the transmission of other-end equipment, then close this interconnection switch when the interconnection switch terminal equipment detects a side.
2. power distribution network failure self-healing method according to claim 1; It is characterized in that; Said block switch terminal equipment charges under the condition below: said block switch terminal equipment is normal in the GOOSE communication, remote operation pattern, this segmentation switch be in close the position, there is pressure both sides; The involution of this switch fault-free and fault-signal, the duration reaches the charging of charging time limit and accomplishes;
Said block switch terminal equipment discharges when being in branch position and electric voltage exception at GOOSE communication abnormality, local operation pattern, this segmentation switch.
3. power distribution network failure self-healing method according to claim 1 is characterized in that, said block switch terminal equipment moves under the condition below:
1. charging is accomplished, and the Equipment Inspection of this switch terminal is to short trouble, and the mains side block switch has fault or non-transformer side block switch, and the load side block switch does not have short trouble or zero load side block switch, then jumps this switch by definite value; If operation condition disappears between time delay, then return charged state;
2. charging is accomplished, and this switch terminal equipment does not detect short trouble, and the mains side block switch has fault, then jumps this switch by definite value; If operation condition disappears between time delay, then return charged state;
Whether displacement of switch is judged in tripping operation back, if displacement success then generate the successful incident of Fault Isolation within a certain period of time, and interconnection switch would be sent out interconnection switch combined floodgate enabling signal; If also not displacement of switch within a certain period of time then generates the Fault Isolation turkey, and locking interconnection switch terminal fault recovers action.
4. power distribution network failure self-healing method according to claim 1; It is characterized in that; Said interconnection switch terminal equipment charges under the condition below: said interconnection switch terminal equipment is normal in the GOOSE communication, the remote operation pattern, this isolating switch is in branch position, both sides that pressure is all arranged, and the duration reaches the charging of charging time limit and accomplishes;
, GOOSE communication abnormality, local operation pattern, mains side or load side discharge when having fault, this segmentation switch to be in to close position and electric voltage exception.
5. power distribution network failure self-healing method according to claim 1; It is characterized in that; Said interconnection switch terminal equipment moves under the condition below: interconnection switch detects a side to be had and presses a side not have pressures, receives sides adjacent fault-free signal and receive the interconnection switch combined floodgate enabling signal of other terminal equipment transmission and do not have locking; Then trigger closes a floodgate, and when receiving the then directly discharge of locking fault recovery signal, does not satisfy condition in the time-delay and then returns charged state; When many interconnection switches, distinguish successively through the time-delay definite value, after an interconnection switch closed a floodgate successfully, other related interconnection switch is the discharge off logic automatically;
Continue to declare whether displacement of switch behind the combined floodgate, if displacement success then generate fault recovery success incident within a certain period of time if also not displacement of switch within a certain period of time then generates the fault recovery turkey, and is regained the outlet of closing a floodgate.
6. power distribution network failure self-healing system is characterized in that: comprise block switch, block switch terminal equipment, interconnection switch, interconnection switch terminal equipment and Ethernet,
Block switch is arranged on segmentation place on the electric power networks, the corresponding terminal equipment of installing of each block switch;
Interconnection switch is provided with between the plurality of segments switch, the corresponding terminal equipment of installing of each interconnection switch;
Ethernet is used for the transmission of the information data between the terminal equipment;
The GOOSE communication mechanism is adopted in the terminal equipment information exchange, and terminal equipment GOOSE opens into empty terminal and is mains side short-circuit signal, load side short-circuit signal 01, load side short-circuit signal 02, load side short-circuit signal 03, starts fault recovery signal and locking fault recovery signal; Terminal equipment GOOSE leaves empty terminal and is this terminal equipment failure signal, startup fault recovery signal and locking fault recovery signal.
7. power distribution network failure self-healing system according to claim 6 is characterized in that: said terminal equipment adopts the double-core CPU of integrated high primary frequency ARM9+32 position high-speed dsp and inner LVDS data communication bus to carry out data sampling, handle to reach and send.
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| CN103022991A (en) * | 2012-11-20 | 2013-04-03 | 山东电力集团公司 | Power distribution network fault quick response method based on controller area network (CAN) bus expansion |
| CN103151834A (en) * | 2013-02-06 | 2013-06-12 | 上海交通大学 | Interconnection switch judgment system and method applied to distributed feeder automation circuit |
| CN103354390A (en) * | 2013-06-19 | 2013-10-16 | 国家电网公司 | Distributed intelligent feed line automation control method |
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