CN104701825B - A kind of fast protection method suitable for intelligent distribution network - Google Patents
A kind of fast protection method suitable for intelligent distribution network Download PDFInfo
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Abstract
The invention discloses a kind of fast protection methods suitable for intelligent distribution network; utilize jump-value of current starting element starting protection; pass through the information exchange between adjacent protective device; since being protected the distribution line most downstream for detecting fault current; breaker at each protection of line upstream successively tripping, using adjacent protection before and after breaker tripping, whether faulty electric current realizes fault location, Fault Isolation.Meanwhile by the interconnection switch of every section of circuit, realize fast failure recovery.The present invention realizes fast failure positioning, Fault Isolation and the fault recovery of distribution line, shortens fault time, accelerates the service restoration in non-faulting dead electricity area, improve power supply reliability.It not only solves the contradiction that distributed generation resource is quickly protected with power distribution network, and gives full play to the advantage of the high power supply capacity grid structure of intelligent distribution network, intelligent distribution network can be well adapted for.
Description
Technical field
The present invention relates to electric power system power distribution circuit relay protection field more particularly to the intelligent power distribution containing distributed generation resource
The protection on cable road more particularly to a kind of fast protection method suitable for intelligent distribution network.
Background technology
At present, with the continuous propulsion of intelligent grid and people's living standards continue to improve, power supply reliability is wanted
Ask higher and higher.Power distribution network is directly facing user and complicated, and failure rate is higher.After power distribution network breaks down, it is desirable that fast
Speed realizes fault location, Fault Isolation and fault recovery.High power supply capacity grid structure and the access of a large amount of distributed generation resources are intelligence
The main feature of energy power distribution network.High power supply capacity grid structure is recovered and is improved for distribution network failure power supply reliability and established base
Plinth.The access of distributed generation resource makes traditional distribution protection method fail, although many improved distribution protection methods can
To realize that the intelligent distribution network containing distributed generation resource is protected, still, guard method is required to increase directional element.And distribution cable
Voltage transformer is not generally installed in road, causes improved guard method that can not be applied to actual power distribution network.In original power distribution network
On the basis of protection, by the time coordination of the superior and the subordinate's protection, it can be realized in the case of no information of voltage and contain distributed electrical
The distribution protection in source,
But guard time is longer, it is impossible to meet the quick protection requirement of intelligent distribution network, and not make full use of intelligence
The high power supply capacity rack advantage of energy power distribution network.Need a kind of intelligent distribution network that can make full use of high power supply capacity rack fast
Fast guard method.
The content of the invention
The present invention is to solve the above-mentioned problems, it is proposed that a kind of fast protection method suitable for intelligent distribution network, we
The shortcomings that method overcomes conventional electrical distribution network protection method protection speed slow and is not suitable for the power distribution network containing distributed generation resource, fully profit
With the advantage of intelligent distribution network, using the fault current and switching-state information of interaction between adjacent protection, well solve and contained
The positioning of intelligent distribution network fast failure, Fault Isolation and the fault recovery of distributed generation resource.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of fast protection method suitable for intelligent distribution network comprises the following steps：
(1) block switch on intelligent distribution network distribution line at each node and interconnection switch are breaker, each disconnected
A protective device is installed at the device of road, is interconnected between each protective device by fiber optic Ethernet；
(2) the Sustainable use jump-value of current of each node is as starting element, detect the protective device of fault current to
The protection of its upstream sends a fault-signal, detects that the protection of fault current is not received under it within defined time delay
The fault-signal of protection is swum, then tripping local breaker, and sent to protection downstream and directly jump order；
(3) after receiving the circuit-breaker status information that downstream protection is sent, detection it is local whether faulty electric current, if having therefore
Hinder electric current, then tripping local breaker at once, and to protection downstream send it is straight jump order, meanwhile, locally protect to its upstream
Protection sends local breaker off-state information；
(4) receive that upstream protection sends it is straight jump order after, it is local to protect tripping local breaker, and to protecting downstream
Hair care send straight jump to order, and after breaker downstream reliably disconnects, is sent out to the protection at the interconnection switch being connected with this protection zone
Fault recovery order is sent, is closed interconnection switch, realizes fault recovery.
In the step (2), after downstream circuit breaker reliably disconnects, the guarantor at the interconnection switch being connected with this protection zone
Hair care send fault recovery order, is closed interconnection switch, realizes the fault recovery of this protection zone load.
In the step (2), locally protect to its upstream and protect the local breaker off-state information of transmission, if this guarantor
Shield area is fault zone, and after interconnection switch is closed, protection detects fault current, tripping interconnection switch at once, while to master
It stands reporting fault region, it is achieved thereby that fault location and Fault Isolation.
In the step (3), after receiving the circuit-breaker status information that downstream protection is sent, whether detection is local faulty
Electric current, if faulty electric current, tripping local breaker, and send straight jump to protection downstream and order at once is breaking downstream
After road device reliably disconnects, fault recovery order is sent to the protection at the interconnection switch being connected with this protection zone, makes interconnection switch
It is closed, realizes fault recovery.
In the step (1), the intelligent distribution network containing distributed generation resource is supported quickly to protect, short circuit occurs in power distribution network
During failure, if trouble point is located at distributed generation resource downstream, the only neighbouring upstream switch in trouble point acts, other upstream switches are equal
It is failure to actuate, upstream load uninterrupted power supply.
In the step (1), if trouble point is located at distributed generation resource upstream, the protection between trouble point and distributed generation resource
If started, recover the power supply of trouble point downstream load first, then realize the Fault Isolation of fault zone；Trouble point is with dividing
If the protection between cloth power supply does not start, the Fault Isolation of fault zone is realized first, then realizes trouble point downstream
The fast failure recovery of load.
When fault current and circuit breaker switch state information exchange are carried out in step (2)-(4), between adjacent protection, if
The response of adjacent protection is not received, then it is assumed that adjacent protection is broken down, and is ignored, and using next adjacent protection as its phase
Neighbour's protection, updates adjacent protection information.
In step (2)-(4), when transient fault occurs, after the disconnection of trouble point upstream circuit breaker, pass through closure
The interconnection switch in transient fault region avoids transient fault region load from having a power failure
In step (2)-(4), using time delay over-current protection as its back-up protection, respectively as local protection with
The nearly standby and remote back-up protection of downstream protection.
The present invention operation principle be：The present invention support the intelligent distribution network containing distributed generation resource quickly protect, with
When short trouble occurs for power grid, if trouble point is located at distributed generation resource downstream, the only neighbouring upstream switch action in trouble point,
He is failure to actuate at upstream switch, upstream load uninterrupted power supply.The present invention realizes the Fault Isolation of fault zone, Ran Houshi first
The fast failure recovery of existing trouble point downstream load.If trouble point is located at distributed generation resource upstream, trouble point and distributed generation resource
If protection between starts, and the present invention recovers the power supply of trouble point downstream load first, then realizes the event of fault zone
Phragma from；If the protection between trouble point and distributed generation resource does not start, the present invention realizes the failure of fault zone first
Then the fast failure recovery of trouble point downstream load is realized in isolation.
Fast protection method suitable for intelligent distribution network is based on high power supply capacity rack and containing distributed generation resource
Intelligent distribution network, block switch and interconnection switch on distribution line are breaker, and meet " N-1 " criterion, i.e. distribution
Any one section of circuit of circuit breaks down, and the load of non-faulting line segment can be turned to supply by its stand-by power supply..
Beneficial effects of the present invention are：
(1) present invention is suitable for having high power supply capacity grid structure and the intelligent distribution network containing distributed generation resource, is not having
Under the conditions of having directional element, realize fast failure positioning, Fault Isolation and the fault recovery of intelligent distribution network, it is reliable to improve power supply
Property；
(2) present invention has self-diagnosing function, and fault current and circuit breaker switch state information are carried out between adjacent protection
During interaction, if not receiving the response of adjacent protection, then it is assumed that adjacent protection is broken down, and is ignored, and by next adjacent guarantor
Shield updates adjacent protection information as its adjacent protection；
(3) present invention is when occurring transient fault, after the disconnection of trouble point upstream circuit breaker, by being closed transient fault area
The interconnection switch in domain avoids transient fault region load from having a power failure；
(4) present invention is protected using time delay over-current protection as its back-up protection respectively as local protection and downstream
Nearly standby and remote back-up protection.
Description of the drawings
Fig. 1 (a) is the troubleshooting interrupt service subroutine flow chart of power distribution network fast protection method of the present invention；
Fig. 1 (b) is the direct command interrupt service subroutine flow chart of power distribution network fast protection method of the present invention；
Fig. 1 (c) is the downstream protection request interrupt service subroutine flow chart of power distribution network fast protection method of the present invention；
Fig. 2 sheets application scheme schematic diagram in the intelligent distribution network containing distributed generation resource for the present invention.
Specific embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Fast protection method proposed by the present invention suitable for intelligent distribution network is to realize by the following technical solutions
, step includes：
As Fig. 1 (a), Fig. 1 (b), Fig. 1 (c) show the program flow diagram of power distribution network fast protection method of the present invention.The guarantor
Maintaining method by controlling the folding of block switch and interconnection switch, realize the fault location of distribution network line, Fault Isolation and therefore
Barrier recovers.It is of the invention mainly to include three interrupt service subroutines：Troubleshooting interrupt service subroutine, straight jump order interruption clothes
Subprogram of being engaged in and downstream protection request interrupt service subroutine.Program circuit is summarized as follows：
Troubleshooting interrupt service subroutine is using the very high jump-value of current of sensitivity as starting element.If start member
Part acts, and illustrates to may have occurred failure, into troubleshooting interrupt service subroutine.Upstream protection sends failure letter first
Breath by time-delay, then judges whether to receive the fault message that downstream protection is sent.If it is not received by downstream
The fault message sent is protected, then tripping local breaker, downstream send straight jump order, and upstream protection sends local break
The disconnection information of road device.After downstream circuit breaker reliably disconnects, fault recovery is sent to the protection at this protection zone interconnection switch
Order, is closed interconnection switch, realizes the fault recovery of this protection zone.If this protection zone is fault zone, at interconnection switch
Protection detect fault current after interconnection switch closure, then disconnect interconnection switch immediately, realize the failure of this protection zone every
From.If receiving the fault message of downstream protection, trip operation is not performed, returns to interruption subroutine, downstream protection is waited to send
Protection request processing order.
Straight jump order interrupt service subroutine is the behaviour that local protection performs after the straight jump order of upstream protection is received
Make.Illustrate that upstream protection has been tripped, downstream load has been disconnected with system power supply, it is desirable that local protection zone load is by its stand-by power supply
Turn to supply.Into after the interrupt service subroutine, tripping local breaker, and downstream send straight jump and order first, when downstream is broken
After road device reliably disconnects, fault recovery order is sent to the protection at this protection zone interconnection switch, realizes the failure of this protection zone
Recover.Finally, upstream protection sends the disconnection information of local breaker.
Downstream protection request interrupt service subroutine is to protect after treatment in downstream, to local transmission downstream is protected to break
Road device status information asks local protection to carry out protection processing.Into after the interrupt service subroutine, it is first determined whether detection
To fault current, if detecting fault current, tripping local breaker downstream sends straight jump and orders, and upstream protects
Send the disconnection information of local breaker.After downstream circuit breaker reliably disconnects, sent out to the protection at this protection zone interconnection switch
Fault recovery order is sent, is closed interconnection switch, realizes the fault recovery of this protection zone.If this protection zone is fault zone,
Protection at interconnection switch detects fault current after interconnection switch closure, then disconnects interconnection switch immediately, realize this protection
The Fault Isolation in area.If fault current is not detected in this protection, the closure state for sending local breaker is protected to its upstream
Information asks the protection of its upstream to continue protection processing.
Fig. 2 show present invention application scheme schematic diagram in the intelligent distribution network containing distributed generation resource.
Distribution line is the multi-joint network structure of more segmentations containing distributed generation resource, wherein, switch 1,2,3,4,5 is opened for segmentation
It closes, switch 6,7,8,9,10 is interconnection switch, and all switches are breaker；DG1, DG2, DG3 and DG4 be respectively node B, C,
The distributed generation resource of D and E accesses；LD1, LD2, LD3, LD4, LD5 and LD6 are respectively the load of node A, B, C, D, E and F；S1、
S2, S3, S4 and S5 are stand-by power supply respectively.Quick protection process is as follows：
When k1 points generation phase fault, protection 1 and protection 2 can detect fault current, and protection 5 can't detect event
Hinder electric current.Fault current is surely detected since the access protection 3 and protection 4 of distributed generation resource differ, it is assumed that protection 4 also detects
To fault current, and protect 3 fault current is not detected.Protection 2 and protection 4 are after fault current is detected, respectively to thereon
Trip protection 1 and protection 3 send fault message.Protection 3 is due to being not detected fault current, so not performing trip operation.Protection 1
Although also detecting fault current, due to having received the fault message of downstream protection 2, trip operation is not also performed.Protection 2 is being advised
The fault message that downstream protection 3 is sent is not received in the fixed time, immediately tripping local breaker 2, downstream protect 3 to send directly
Order is jumped, and upstream protection 1 sends breaker and disconnects information.Protection 1 at this time can't detect fault current, therefore protect 1 not
Perform trip operation.Protection 3 perform it is straight jump order reliable cut-off breaker 3 after, protection 2 is at this protection zone interconnection switch 7
Protection 7 send fault recovery order.Protection 7 is closed local contact switch 7 immediately after fault recovery order is received.If
Failure is permanent fault, then protects 7 to detect fault current, tripping interconnection switch 7, realizes the failure to fault zone immediately
Isolation.If transient fault, then protect 7 to can't detect fault current, region load LD3 is avoided to have a power failure.
Protection 4 does not receive the fault messages of downstream protection 5 at the appointed time, then tripping local breaker 4 immediately, disconnected
After road device 4 reliably disconnects, 3 are upstream protected to send breaker disconnection information, and downstream protection 5 sends straight jump and orders.Downstream
Protection 5 receives straight after jumping order, tripping local breaker 5 immediately.Breaker 5 reliably disconnect after, on the one hand, protection 4 to
Protection 9 at its protection zone interconnection switch sends fault recovery order, this protection zone load LD5 is realized by stand-by power supply S4 and is supplied
Electricity recovers.On the other hand, since protection 5 is the protection of distribution line most downstream, after breaker 5 reliably disconnects, protected immediately to it
The protection 10 protected at area's interconnection switch sends fault recovery order, this protection zone load LD6 is realized by stand-by power supply S5 and is powered
Recover.In addition, protection 3 is sent after the breaker for receiving protection 4 disconnects information to the protection 8 at this protection zone interconnection switch
Fault recovery order realizes service restoration by stand-by power supply S3 to this protection zone load LD4.
When phase fault occurs for k2 points, protection 1, protection 2, protection 3 and protection 4 can detect fault current,
Protection 2, protection 3 and protection 4 send fault message to its upstream protection 1, protection 2 and protection 3 respectively, therefore, protection 1, protection 2
Trip operation is not performed with protection 3.Protection 5 can't detect fault current, and protection 4 does not receive at the appointed time to be protected downstream
5 fault message is protected, immediately tripping circuit breaker 4.After breaker 4 reliably disconnects, protect to its upstream protection 3 and send breaker
4 disconnect information, and send straight jump order to protection 5 downstream.At this point, since upstream protection 1, protection 2 and protection 3 can't detect
Fault current, therefore any trip operation is not performed.Protection 5 receives straight after jumping order, tripping circuit breaker 5 immediately.Due to protecting
Shield 5 is most downstream protection, and therefore, after breaker 5 reliably disconnects, the upstream protection 4 immediately of protection 5 sends breaker and disconnects letter
Breath, and fault recovery order is sent to the protection 10 at this protection zone interconnection switch 10, this protection zone is born by stand-by power supply S5
Lotus LD6 realizes service restoration.Protection 4 receive protection 5 breakers 5 disconnect information after, immediately at its protection zone interconnection switch
Protection 9 send fault recovery order.9 are protected after fault recovery order is received, immediately close circuit breaker 9.If failure is forever
Long property failure then protects 9 to detect fault current, and tripping interconnection switch 9, realizes the Fault Isolation to fault zone immediately.If
For transient fault, after interconnection switch is closed, protection 9 can't detect fault current, and the region load is avoided to have a power failure.
The present invention is not influencing distributed electrical when phase fault occurs for the intelligent distribution network containing distributed generation resource
On the basis of the service efficiency of source, fault location, Fault Isolation and fault recovery can be completed in 40ms, has reached intelligent distribution network
Requirement to quickly protecting has clear advantage.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (9)
1. a kind of fast protection method suitable for intelligent distribution network, it is characterized in that：When short trouble occurs for power distribution network, if therefore
Barrier point is located at distributed generation resource downstream, the only neighbouring upstream switch action in trouble point, other upstream switches are failure to actuate, upstream
Load uninterrupted power supply realizes the Fault Isolation of fault zone first, then realizes that the fast failure of trouble point downstream load is extensive
It is multiple；If trouble point is located at distributed generation resource upstream, if the protection between trouble point and distributed generation resource starts, recover first
Then the Fault Isolation of fault zone is realized in the power supply of trouble point downstream load；Protection between trouble point and distributed generation resource
If do not started, the Fault Isolation of fault zone is realized first, then realizes the fast failure recovery of trouble point downstream load；
Block switch and interconnection switch on distribution line are breaker, and meet " N-1 " criterion, i.e., distribution line is arbitrary
One section of circuit breaks down, and the load of non-faulting line segment can be turned to supply by its stand-by power supply；
Comprise the following steps：
（1）Block switch and interconnection switch on intelligent distribution network distribution line at each node are breaker, each breaker
Place installs a protective device, is interconnected between each protective device by fiber optic Ethernet；
（2）The Sustainable use jump-value of current of each node detects the protective device of fault current to thereon as starting element
Trip protection sends a fault-signal, detects that the protection of fault current does not receive within defined time delay and protects downstream
The fault-signal of shield, then tripping local breaker, and send straight jump to protection downstream and order；
（3）After receiving the circuit-breaker status information that downstream protection is sent, detection it is local whether faulty electric current, if faulty electricity
Stream, then tripping local breaker at once, and to protection downstream send it is straight jump order, meanwhile, locally protect and protected to its upstream
Send local breaker off-state information；
（4）Receive that upstream protection sends it is straight jump order after, it is local to protect tripping local breaker, and sent out to protection downstream
Send straight jump order, after breaker downstream reliably disconnects, event is sent to the protection at the interconnection switch being connected with this protection zone
Barrier recovers order, is closed interconnection switch, realizes fault recovery.
2. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（2）In, after downstream circuit breaker reliably disconnects, fault recovery life is sent to the protection at the interconnection switch being connected with this protection zone
Order, is closed interconnection switch, realizes the fault recovery of this protection zone load.
3. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（2）In, it locally protects to its upstream and protects the local breaker off-state information of transmission, if this protection zone is fault zone,
After interconnection switch is closed, protection detects fault current, tripping interconnection switch at once, while to main website reporting fault region,
It is achieved thereby that fault location and Fault Isolation.
4. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（3）In, after receiving the circuit-breaker status information that downstream protection is sent, detection it is local whether faulty electric current, if faulty electricity
Stream, then tripping local breaker at once, and to protection downstream send it is straight jump order, after breaker downstream reliably disconnects,
Fault recovery order is sent to the protection at the interconnection switch being connected with this protection zone, is closed interconnection switch, realizes that failure is extensive
It is multiple.
5. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（1）In, the intelligent distribution network containing distributed generation resource is supported quickly to protect, when short trouble occurs for power distribution network, if trouble point
Positioned at distributed generation resource downstream, the only neighbouring upstream switch action in trouble point, other upstream switches are failure to actuate, upstream load
Uninterrupted power supply.
6. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（1）In, if trouble point is located at distributed generation resource upstream, if the protection between trouble point and distributed generation resource starts, first
Recover the power supply of trouble point downstream load, then realize the Fault Isolation of fault zone；Between trouble point and distributed generation resource
If protection does not start, the Fault Isolation of fault zone is realized first, then realizes the fast failure of trouble point downstream load
Recover.
7. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（2）-（4）In, when fault current and circuit breaker switch state information exchange are carried out between adjacent protection, if not receiving adjacent protection
Response, then it is assumed that adjacent protection is broken down, and is ignored, and using next adjacent protection as its adjacent protection, is updated adjacent
Protection information.
8. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（2）-（4）In, when transient fault occurs, after the disconnection of trouble point upstream circuit breaker, by the connection for being closed transient fault region
Network switch avoids transient fault region load from having a power failure.
9. a kind of fast protection method suitable for intelligent distribution network as described in claim 1, it is characterized in that：The step
（2）-（4）In, using time delay over-current protection as its back-up protection, respectively as local protection and the nearly standby of downstream protection
With remote back-up protection.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104901292B (en) * | 2015-06-17 | 2017-12-29 | 华北电力大学 | Power distribution network current protection system and method |
| CN105337268A (en) * | 2015-06-23 | 2016-02-17 | 国家电网公司 | Power distribution network wide-area protection method comprising distributed power supply |
| CN105932635B (en) * | 2016-04-19 | 2018-07-03 | 积成电子股份有限公司 | A kind of method of intelligent distributed FA systems fast recovery of power supply |
| CN105896490B (en) * | 2016-05-17 | 2018-08-21 | 上海思源弘瑞自动化有限公司 | A kind of fault handling method and device of power distribution network |
| CN108226712B (en) * | 2018-01-24 | 2020-03-24 | 国网江苏省电力有限公司苏州供电分公司 | Fault processing method for power distribution network |
| CN112234585A (en) * | 2019-07-15 | 2021-01-15 | 南京南瑞继保电气有限公司 | Medium-voltage direct-current power distribution network protection control system and method |
| CN113295960B (en) * | 2021-04-16 | 2022-06-24 | 国网宁夏电力有限公司电力科学研究院 | CPS multi-dimensional information-oriented power distribution network fault identification method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN102790383A (en) * | 2012-08-20 | 2012-11-21 | 山东大学 | Automatic rapid protection control method of novel feeder |
| CN104113141A (en) * | 2014-07-30 | 2014-10-22 | 国网电力科学研究院 | Intelligent lengthways interconnected feeder line automatic control method |
| CN104113048A (en) * | 2014-06-24 | 2014-10-22 | 中国石油化工股份有限公司 | Intelligent protection system of distribution network |
-
2015
- 2015-03-11 CN CN201510106714.5A patent/CN104701825B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938117A (en) * | 2010-10-14 | 2011-01-05 | 山东大学 | Current differential protection method for smart distribution network |
| CN102790383A (en) * | 2012-08-20 | 2012-11-21 | 山东大学 | Automatic rapid protection control method of novel feeder |
| CN104113048A (en) * | 2014-06-24 | 2014-10-22 | 中国石油化工股份有限公司 | Intelligent protection system of distribution network |
| CN104113141A (en) * | 2014-07-30 | 2014-10-22 | 国网电力科学研究院 | Intelligent lengthways interconnected feeder line automatic control method |
Non-Patent Citations (1)
| Title |
|---|
| "面向智能配电网的保护与控制方法";庞清乐等;《电力***保护与控制》;20101101;第38卷(第21期);全文 * |
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