CN103955200B - Movable mould test method for self-healing control function of power distribution network - Google Patents
Movable mould test method for self-healing control function of power distribution network Download PDFInfo
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- CN103955200B CN103955200B CN201410088880.2A CN201410088880A CN103955200B CN 103955200 B CN103955200 B CN 103955200B CN 201410088880 A CN201410088880 A CN 201410088880A CN 103955200 B CN103955200 B CN 103955200B
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Abstract
The invention provides a movable mould test method for a self-healing control function of a power distribution network. The method comprises the following steps: setting a state sequence on a relay tester, and determining a fault strategy; triggering the fault strategy according to set time through GPS signals by use of a movable mould tester, the movable mould tester being connected with the terminal row of an intelligent control terminal of the power distribution network for simulating a primary switch device; obtaining remote signaling information returned by the movable mould tester; starting the self-healing control of the power distribution network, controlling the corresponding switch of the power distribution network to isolate a fault within a minimum scope, and restoring power supply to other areas whose power is cut off due to the fault reason; and according to the remote signaling information and the remote measuring information of all switches in a fault area, determining a test result. By applying the technology provided by the invention, the technical difficulty of simulation of fault currents, which is generated at the time when devices are distributed in a cross-region mode, is solved, the dynamic simulation testing of an online operation system is realized, the test reliability is high, the repeatability is high, the method is simple and easily implemented, and the cost is low.
Description
Technical field
The present invention relates to electric power project engineering field, particularly relate to the dynamic of a kind of power distribution network self-healing control function
Mould method of testing.
Background technology
The essence of traditional power distribution system current protection is an independent cell protection, and it only detects and flows through institute
The electric current of monitoring switch and determine the action of protection whether and action delay, without concern for the protection of adjacent switch
Action situation.This be cause adjacent protection cooperate difficulty main cause.If the model of monitoring for protection
Enclose and expanded to one group of switch that the switch that is connected even is connected by a point, then the cooperation of the superior and the subordinate's protection can be managed
Solve the internal coordination for protection.Along with the present computer technology and the development of network technology so that by network
The coordination that communication realizes between protection is possibly realized.Now the analog quantity of different location is after locality has been detected,
Simply the data message of testing result, protection are differentiated that the status information of result, switching-state information etc. pass through
Network is shared for difference protection, makes to coordinate and coordinate between the protection of different location, thus realizes distribution
The self-healing control of net.
The on-the-spot realistic simulation test of power distribution network self-healing control function changes power supply mode because of needs or power failure cannot
Carry out.Whole group of transmission test link is many, and owing to being test for liking (typically may be used of cross-region distribution
Reach several kilometers, dozens of kilometres etc.), owing to having no idea to produce fault current and allow each equipment under test sense,
Therefore it is the most accurate to be difficult to test operation when it tackles various fault, it is impossible to judge whether operation meets and make a reservation for patrol
Volume.
Summary of the invention
Based on this, it is necessary to for above-mentioned technical problem, it is provided that the dynamic model of a kind of power distribution network self-healing control function
Method of testing.
The dynamic model method of testing of a kind of power distribution network self-healing control function, comprises the steps:
Previously according to fault type and power distribution network interconnection respectively switchs when breaking down remote measurement change actual greatly
Status switch on little and timing settings relay protection tester, determines failure strategy；
Previously according to fault type and power distribution network interconnection respectively switchs when breaking down remote measurement change actual greatly
Status switch on little and timing settings relay protection tester, determines failure strategy；
Utilize dynamic model tester, and by gps signal as setting failure strategy described in Time Triggered, wherein,
In the terminal block of the control of intelligent terminal that described dynamic model tester is connected to power distribution network, once switch for simulation
Equipment；
The remote measurement change of the status switch analog switch according to relay protection tester, starts routine according to remote measurement size
The defencive function of formula, and obtain the remote signalling information that dynamic model tester returns；
Power distribution network is started certainly according to the remote measurement of each switch relevant in fault power distribution network interconnection, remote signalling information
More control function, control power distribution network and switch Fault Isolation at minimum zone accordingly, and recover other for some reason
Barrier reason and the power supply of power supply interrupted district；
Remote signalling information and telemetry intelligence (TELINT) according to all switches in fault zone determine test result.
The dynamic model method of testing of above-mentioned power distribution network self-healing control function, can determine whether when tackling different faults strategy,
The actual reply action of power distribution network self-healing control function is the most correct；Improve the reliability of test, simultaneously can
With action policy during test power distribution network self-healing control function reply different faults comprehensively, it is achieved to online fortune
Row system carries out the dynamic model test of network type self-healing control function, and the relevant apparatus used in test process only needs
The secondary circuit accessing power supply circuits just can be carried out, and does not interferes with normal power supply, the credible height of test,
Repeatable strong, simple, with low cost, suitable popularity is applied.
Accompanying drawing explanation
Fig. 1 is the dynamic model method of testing flow chart of power distribution network self-healing control function；
Fig. 2 is the system structure schematic diagram of power distribution network self-healing control system online dynamic model test；
Fig. 3 is dynamic model tester and the physical cabling figure of relay protection tester of test site；
Fig. 4 is the initial operating state figure of the distribution feeder group chosen；
Fig. 5 is the on off state schematic diagram after triggering L1 fault；
Fig. 6 is the on off state schematic diagram after restoring electricity.
Detailed description of the invention
Being embodied as the dynamic model method of testing of the power distribution network self-healing control function of the present invention below in conjunction with the accompanying drawings
Mode is described in detail.
With reference to shown in Fig. 1, Fig. 1 is the dynamic model method of testing flow chart of power distribution network self-healing control function, including
Following steps:
Step S10, the remote measurement change respectively switched previously according to fault type and power distribution network interconnection when breaking down
Actual size and timing settings relay protection tester on status switch, determine failure strategy；
Step S20, utilizes dynamic model tester, and by gps signal as setting fault plan described in Time Triggered
Slightly, wherein, in the terminal block of the control of intelligent terminal that described dynamic model tester is connected to power distribution network, for mould
Intend a switchgear, can change with analog remote signaling and telemetered signal；
Concrete, access the remote signalling information of dynamic model tester, when each dynamic model tester is carried out pair by GPS,
According to setting remote signalling information described in time utilization, described status switch is overturn, trigger described failure strategy.
Step S30, according to the remote measurement change of the status switch analog switch of relay protection tester, according to remote measurement size
Start the defencive function of conventional formula, and obtain the remote signalling information that dynamic model tester returns；
Concrete, according to the remote measurement change of the status switch analog switch of relay protection tester, according to described remote measurement
Actual sequential and the order of change send remote measurement control command, start remote measurement according to described remote measurement control command and survey
Amount；The control of intelligent terminal of power distribution network judges whether remote measurement measured value mates with protection definite value, when remote measurement is measured
It is worth with when protecting definite value to mate, starts the defencive function of corresponding conventional formula；After defencive function starts, power distribution network
Switch execution action, a dynamic model tester switchgear of simulation, and return corresponding remote signalling information to intelligence
Terminal can be controlled.
Step S40, starts according to the remote measurement of each switch relevant in fault power distribution network interconnection, remote signalling information
Power distribution network self-healing control function, controls power distribution network and switchs Fault Isolation at minimum zone accordingly, and recover
Other is the power supply of power supply interrupted district because of failure cause；
Concrete, obtain remote measurement of each switch relevant in the fault power distribution network interconnection producing fault, distant
Letter information；Starting power distribution network network type defencive function according to described remote measurement, remote signalling information, power distribution network is carried out certainly
More control；Judge whether described remote measurement, remote signalling information meet remote control condition, if meeting, remote control respective switch
Faulty section is isolated, is sent a telegram in reply in the region that restores electricity in fault zone, control power distribution network and open accordingly
Close Fault Isolation at minimum zone, and recover other power supply of power supply interrupted district because of failure cause.
Step S50, remote signalling information and telemetry intelligence (TELINT) according to all switches in fault zone determine test result.
Concrete, remote signalling information and the telemetry intelligence (TELINT) of all switches in fault zone is obtained according to abovementioned steps, right
Remote signalling information and telemetry intelligence (TELINT) are analyzed obtaining test result.
Technical scheme, can determine whether when tackling different faults strategy, power distribution network self-healing control function
Actual reply action the most correct；Improve the reliability of test, power distribution network can be tested certainly simultaneously comprehensively
More controlling action policy during function reply different faults, the relevant apparatus used in test process only needs to access
The secondary circuit of power supply circuits just can be carried out, and does not interferes with normal power supply, solves setting of cross-region distribution
The standby technical difficulty simultaneously producing simulated failure electric current, it is achieved that the dynamic simulant test of online operation system,
The height credible high, repeatable of test, simple, with low cost.
In such scheme implementation process, it is only necessary to substitute an original switchgear by dynamic model tester,
Remote measurement value is then simulated by relay protection tester device, remainder (bag completely the same with on-the-spot practical operation situation
Include defencive function), during for different distribution feeder group, only need to increase the relay protection suitable with actual motion
Tester, dynamic model tester and GPS timing device, the connection principle of each power distribution room is completely the same, has
Replicability is strong, the feature of wide accommodation, flexible operation.
For the ease of understanding technical scheme, illustrate the present invention's below in conjunction with an application example
Principle.
In this application example, with reference to shown in Fig. 2, Fig. 2 is that the power distribution network online dynamic model of self-healing control system is surveyed
The system structure schematic diagram of examination；DTU1～DTU4 of A～D power distribution station, respectively by distribution scheduling data network
Accessing distribution self-healing system, the protection side that distribution self-healing system is connected to M station by major network dispatch data net is controlled
Device processed, by the state of dynamic model tester analog switch S0～S9 respectively, relay protection tester analog telemetering value.
With reference to shown in Fig. 3, Fig. 3 is dynamic model tester and the physical cabling figure of relay protection tester of test site；
The test device used includes relay protection tester, dynamic model tester and GPS timing device, tests device and joins
The control of intelligent terminal line of electrical network, it should be noted that the mode of connection shown in Fig. 3 is an application example
Figure, is not intended that the feature to test device limits.
With reference to shown in Fig. 4, Fig. 4 is the initial operating state figure of the distribution feeder group chosen, mainly mould
Intend the L1 line fault between DTU1 and DTU2, DTU(Data Transfer unit) i.e. Based Intelligent Control end
End.
(1) the remote measurement change respectively switched previously according to fault type and power distribution network interconnection when breaking down is true
Status switch in real size and timing settings relay protection tester.
1) status switch of S0 switch:
| Status switch is numbered | Remote measurement |
| Status switch 1(normal condition) | Ua=5.9kV I=182A remote measurement the most slightly changes |
| Status switch 2(L1 fault) | Ua=5.9kV I=1200A remote measurement the most slightly changes |
| After status switch 3(S2 switch separating brake) | Ua=5.9kV I=30A remote measurement the most slightly changes |
2) status switch of S2 switch:
3) status switch of S3 switch:
4) status switch of S6 switch:
5) status switch of S7 switch:
6) status switch of S8 switch:
7) status switch of S9 switch:
(2) remote signalling of the dynamic model tester by accessing carries out the upset between status switch, it is achieved fault plan
Triggering slightly, i.e. triggers L1 fault, and S2 fast tripping protection action is tripped, and S3 starts interlocking dead electricity time delay separating brake
The function separating brake of locking, S2, S3, S4, S5, S6, S7 switch all has a power failure, with reference to shown in Fig. 5,
Fig. 5 is the on off state schematic diagram after triggering L1 fault；In the process, remote measurement is simulated by status switch.
(3) power distribution network self-healing control functional network formula protection, the merit of the switch activated unilateral decompression time-delay closing of S8
Can close a floodgate, S4, S5, S6, S7 switch restores electricity, with reference to shown in Fig. 6, Fig. 6 be restore electricity after
On off state schematic diagram；Analyze remote measurement, remote signalling information determines test result.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (3)
1. the dynamic model method of testing of a power distribution network self-healing control function, it is characterised in that comprise the steps:
Previously according to fault type and power distribution network interconnection respectively switchs when breaking down remote measurement change actual greatly
Status switch on little and timing settings relay protection tester, determines failure strategy；
Utilize dynamic model tester, and by gps signal as setting failure strategy described in Time Triggered, wherein,
In the terminal block of the control of intelligent terminal that described dynamic model tester is connected to power distribution network, once switch for simulation
Equipment；
The remote measurement change of the status switch analog switch according to relay protection tester, starts routine according to remote measurement size
The defencive function of formula, and obtain the remote signalling information that dynamic model tester returns, specifically include: test according to relay protection
The remote measurement change of the status switch analog switch of instrument, the actual sequential changed according to described remote measurement and order send
Remote measurement control command, starts remote measurement according to described remote measurement control command and measures；The control of intelligent terminal of power distribution network
Judge whether remote measurement measured value mates with protection definite value, when remote measurement measured value mates with protection definite value, start
The defencive function of corresponding conventional formula；After defencive function starts, the switch execution action of power distribution network, dynamic model is tested
An instrument switchgear of simulation, and return corresponding remote signalling information to control of intelligent terminal；
Power distribution network is started certainly according to the remote measurement of each switch relevant in fault power distribution network interconnection, remote signalling information
More control function, control power distribution network and switch Fault Isolation at minimum zone accordingly, and recover other for some reason
Barrier reason and the power supply of power supply interrupted district；
Remote signalling information and telemetry intelligence (TELINT) according to all switches in fault zone determine test result.
The dynamic model method of testing of power distribution network self-healing control function the most according to claim 1, its feature exists
In, utilize dynamic model tester, and by gps signal as setting the step bag of failure strategy described in Time Triggered
Include:
Access the remote signalling information of dynamic model tester, when each dynamic model tester is carried out pair by GPS, according to setting
Fix time and utilize described remote signalling information that described status switch is overturn, trigger described failure strategy.
The dynamic model method of testing of power distribution network self-healing control function the most according to claim 1, its feature exists
In, start power distribution network certainly according to the remote measurement of each switch relevant in fault power distribution network interconnection, remote signalling information
More control function, control power distribution network and switch Fault Isolation at minimum zone accordingly, and recover other in time
Because of failure cause, the step of the power supply of power supply interrupted district includes:
Obtain and produce each remote measurement switched, remote signalling information relevant in the fault power distribution network interconnection of fault；
Starting power distribution network network type defencive function according to described remote measurement, remote signalling information, power distribution network carries out spontaneous recovery control
System；
Judging whether described remote measurement, remote signalling information meet remote control condition, if meeting, remote control respective switch is by event
Barrier separate from, is sent a telegram in reply in the region that restores electricity in fault zone, control power distribution network switch accordingly by
Fault Isolation is at minimum zone, and recovers other power supply of power supply interrupted district because of failure cause.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088880.2A CN103955200B (en) | 2014-03-11 | 2014-03-11 | Movable mould test method for self-healing control function of power distribution network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088880.2A CN103955200B (en) | 2014-03-11 | 2014-03-11 | Movable mould test method for self-healing control function of power distribution network |
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| CN103955200B true CN103955200B (en) | 2017-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104332970B (en) * | 2014-10-29 | 2018-01-30 | 云南电网公司电力科学研究院 | A kind of pilot protection adjustment method using at GPS pairs |
| CN104635084A (en) * | 2015-02-03 | 2015-05-20 | 国家电网公司 | Distribution automation equipment transmission test method based on simulator station |
| CN111208382B (en) * | 2020-04-23 | 2020-08-11 | 广州思泰信息技术有限公司 | Electric power self-healing test method, device, system, main station and tester |
| CN113267702A (en) * | 2021-06-24 | 2021-08-17 | 广东电网有限责任公司 | Method and device for generating test case of power distribution network fault self-healing system |
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| JP3392718B2 (en) * | 1997-06-24 | 2003-03-31 | 株式会社日立製作所 | Simulator |
| CN102508052B (en) * | 2011-09-26 | 2014-08-20 | 广东电网公司电力科学研究院 | Test method for field band channel operation of automatic bus transfer system of area network |
| CN103051065B (en) * | 2012-12-29 | 2015-08-26 | 科大智能电气技术有限公司 | The distributed FA interlock method of testing of a kind of power distribution automation and system |
| CN203191816U (en) * | 2013-03-26 | 2013-09-11 | 国家电网公司 | Test system for automatic control equipment of power distribution network |
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