CN110518547A - A kind of high precision collecting direct current protecting devices and methods therefor - Google Patents
A kind of high precision collecting direct current protecting devices and methods therefor Download PDFInfo
- Publication number
- CN110518547A CN110518547A CN201910927510.6A CN201910927510A CN110518547A CN 110518547 A CN110518547 A CN 110518547A CN 201910927510 A CN201910927510 A CN 201910927510A CN 110518547 A CN110518547 A CN 110518547A
- Authority
- CN
- China
- Prior art keywords
- module
- personal computer
- industrial personal
- output end
- input terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000002955 isolation Methods 0.000 claims abstract description 22
- 238000012423 maintenance Methods 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 20
- HPDFFVBPXCTEDN-UHFFFAOYSA-N copper manganese Chemical compound [Mn].[Cu] HPDFFVBPXCTEDN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000004832 voltammetry Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 21
- 230000015556 catabolic process Effects 0.000 claims description 20
- 230000001360 synchronised effect Effects 0.000 claims description 16
- 238000012795 verification Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/087—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current for dc applications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of high precision collecting direct current protecting devices; including industrial personal computer, positive bus-bar resistive module, negative busbar resistive module, Remote parameter control module, branch trouble alarm module, power down alarm module and Fault Isolation feedback module; the output end of the positive bus-bar resistive module and negative busbar resistive module is connect with the input terminal of resistance test module, is related to DC power supply protection technique field.The high precision collecting direct current protecting device; with the voltammetry circuitry of copper-manganese material; positive and negative direct current bus goes here and there a constant resistive module respectively, resistance both end voltage and negative busbar resistance both end voltage on positive bus-bar is tested, to detect calculating current; to realize high precision collecting; then in the process of running, industrial personal computer is by the calculating to current value and comparison, if there are abnormal conditions; shunt release can be automatically controlled and notify maintenance personnel in time, to carry out good protection to DC power supply.
Description
Technical field
The present invention relates to DC power supply protection technique field, specially a kind of high precision collecting direct current protecting device and its side
Method.
Background technique
DC power system is the vital power supply system of all trades and professions.The stabilization of direct current system decides using DC power supply
Signal system, automation equipment, communication system etc. stable operation.Using machinery inside existing DC protection system
Control protection, although faulty alarm is fed back or fault alarm, the main control unit active control that cannot signal is isolated
Fault point can only be by artificially judging to operate.
Existing DC detecting device, most of Hall acquisition principles used, Hall detection accuracy is inadequate, and numerical value
It is affected by temperature, has movement, and poor anti jamming capability, it is unsuitable in the running environment of load, then having is exactly Hall
The measurement range of detection is excessive, to cause precision inadequate, range is difficult to match, so needing to develop one kind now can lead
The dynamic tool for going to issue signal control isolated fault point.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of high precision collecting direct current protecting devices and methods therefor, solutions
The problem of existing DC detecting device detection accuracy of having determined is inadequate, poor anti jamming capability, notifies not in time.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs: a kind of high precision collecting direct current protecting
Device, including industrial personal computer, positive bus-bar resistive module, negative busbar resistive module, Remote parameter control module, branch trouble alarm mould
Block, power down alarm module and Fault Isolation feedback module, the output end of the positive bus-bar resistive module and negative busbar resistive module
It is connect with the input terminal of resistance test module, the output end of the resistance test module and the input terminal of current calculation module connect
It connects, and the input terminal of the output end of current calculation module and industrial personal computer connects, the output end and data comparison of the industrial personal computer
The input terminal of module connects, and the output end of the data comparison module is connect with the input terminal of breakdown judge system, and failure
The output end of judgement system and the input terminal of industrial personal computer connect, and the output end of the industrial personal computer and the input terminal of shunt release connect
It connects.
Preferably, the output end of the industrial personal computer is connect with the input terminal of GPS synchronised clock module, when the GPS is synchronous
The input terminal of the output end of clock module and wireless communication module connects, and the output end of wireless communication module and mobile terminal
Input terminal connection.
Preferably, the input terminal of the output end of the Fault Isolation feedback module and industrial personal computer connects, the remote parameter
The output end of control module and the input terminal of industrial personal computer connect.
Preferably, the output end of the branch trouble alarm module and power down alarm module connects with the input terminal of industrial personal computer
It connects.
Preferably, the breakdown judge system includes ground fault parameter verification module, short trouble parameter verification module
Module is checked with normal parameter.
Preferably, the surface of the industrial personal computer is fixedly connected with data display screen, the surface of the industrial personal computer and is located at number
According to control button is provided with below display screen, the surface of the industrial personal computer and the side for being located at data display screen are installed faulty
Display lamp.
The invention also discloses a kind of high precision collecting direct current protecting methods, specifically includes the following steps:
S1, the voltammetry circuitry that the route for testing circuit is uniformly changed into copper-manganese material, positive and negative direct current bus go here and there one respectively
Positive bus-bar resistive module and negative busbar resistive module, so that resistance test module can pass through positive bus-bar resistive module and negative busbar electricity
Resistance module tests resistance both end voltage and negative busbar resistance both end voltage, current calculation module on positive bus-bar respectively can calculate electricity
It flows and is sent to industrial personal computer；
S2, in the process of running, current values can be sent to data comparison module by industrial personal computer, thus data comparison module
The difference of positive bus-bar current value and negative busbar current value can be calculated, and difference is sent to breakdown judge system, before use
Module can be checked by the ground fault parameter in breakdown judge system, short trouble parameter checks module and normal parameter core
The corresponding parameter value of each state is inputted respectively to module, so that breakdown judge system can be sentenced according to preset parameter value before
Deenergizing whether there is failure, if the difference of positive pole line current value and negative busbar current value and preset ground fault parameter before
It matches, is then ground fault, if the difference of positive pole line current value and negative busbar current value is joined with preset short trouble before
Number matches, then is short trouble, if the difference of positive pole line current value and negative busbar current value and preset normal parameter before
It matches, then circuit is normal condition；
If S3, detecting there is short trouble on DC bus, industrial personal computer can show that fault-signal, industrial personal computer can pass through GPS
Synchronised clock module carries out positioning to abort situation and fault time is determined, and can pass through wireless telecommunications mould after determining
Block issues fault message to the mobile terminal of maintenance personnel, and industrial personal computer can issue the corresponding command to shunt release, event
Phragma can detect failure from, Fault Isolation feedback module and be whether success, and isolation result is issued to industrial personal computer and is fed back, if
Short trouble is isolated not successfully, industrial personal computer can by wireless communication module to the mobile terminal alert of maintenance personnel,
Staff is always supervised to take artificial compulsive means to carry out Fault Isolation to scene；
If S4, detecting there is ground fault on DC bus, industrial personal computer shows that earth-fault signal, industrial personal computer can pass through nothing
Line communication module issues ground fault information to the mobile terminal of maintenance personnel, but does not issue the order of isolation ground fault,
But allowing in the ground fault time, it waits staff that scene is gone to check, transfers to artificial treatment；
S5, in circuit operational process, branch trouble alarm module and power down alarm module can monitor branch trouble respectively
And power-down conditions will do it alarm, and by GPS synchronised clock module to fault bit if occurring exception in the detection process
Set carry out positioning and fault time be determined, determine after fault message can be sent to dimension by wireless communication module
The mobile terminal of shield, so that maintenance personnel be notified to check in time to scene, maintenance personnel can also pass through remote parameter control
Different hierarchical protection sequences is arranged in molding block, and trip time, delay time etc. allows operator not go to scene,
Directly remotely operate.
(3) beneficial effect
The present invention provides a kind of high precision collecting direct current protecting devices and methods therefors.Have it is following the utility model has the advantages that
(1), the high precision collecting direct current protecting devices and methods therefor, passes through positive bus-bar resistive module and negative busbar resistive mode
The output end of block is connect with the input terminal of resistance test module, the output end of resistance test module and current calculation module it is defeated
Enter end connection, and the input terminal of the output end of current calculation module and industrial personal computer connects, the output end and data pair of industrial personal computer
Input terminal than module connects, and the output end of data comparison module is connect with the input terminal of breakdown judge system, S1, will test electricity
The route on road uniformly changes the voltammetry circuitry of copper-manganese material into, and positive and negative direct current bus goes here and there a positive bus-bar resistive module and positive pole respectively
Line resistance module, with the voltammetry circuitry of copper-manganese material, positive and negative direct current bus goes here and there a constant resistive module respectively, tests positive pole
Resistance both end voltage and negative busbar resistance both end voltage, to realize high precision collecting, then exist on line to detect calculating current
In operational process, industrial personal computer is by the calculating to current value and comparison, if there are abnormal conditions, can automatically control shunted exciter tripping
Device simultaneously notifies maintenance personnel in time, to carry out good protection to DC power supply.
(2), the high precision collecting direct current protecting devices and methods therefor, passes through the output end and work of Fault Isolation feedback module
The input terminal of control machine connects, and the output end of Remote parameter control module and the input terminal of industrial personal computer connect, branch trouble alarm mould
The output end of block and power down alarm module is connect with the input terminal of industrial personal computer, is carried out to branch trouble and power down failure fine
Monitoring, the parameter of original part can be controlled with remote control and regulation core, operator be allowed not go to scene, directly remote operation,
Labor intensity of operating staff is reduced, is improved work efficiency.
(3), the high precision collecting direct current protecting devices and methods therefor passes through the output end and GPS synchronised clock of industrial personal computer
The input terminal of module connects, and the output end of GPS synchronised clock module and the input terminal of wireless communication module connect, and channel radio
The input terminal of the output end and mobile terminal of interrogating module connects, and has carried out positioning to abort situation and has carried out essence to fault time
Quasi- determination, keeps the failed storage time more accurate, is conducive to the united analysis to data.
(4), it is aobvious to be fixedly connected with data by the surface of industrial personal computer for the high precision collecting direct current protecting devices and methods therefor
Display screen, the surface of industrial personal computer and is located at below data display screen and is provided with control button, the surface of industrial personal computer and is located at data
The side of display screen is equipped with malfunction coefficient lamp, and device control is controlled using industrial personal computer, facilitates the use of operator.
Detailed description of the invention
Fig. 1 is the structural principle block diagram of present system；
Fig. 2 is the structural principle block diagram of breakdown judge system of the present invention；
Fig. 3 is the structural schematic diagram of industrial personal computer of the present invention；
In figure, 1, industrial personal computer；2, positive bus-bar resistive module；3, negative busbar resistive module；4, Remote parameter control module；5,
Branch trouble alarm module；6, power down alarm module；7, resistance test module；8, current calculation module；9, data comparison module；
10, breakdown judge system；11, shunt release；12, GPS synchronised clock module；13, wireless communication module；14, mobile terminal；
15, Fault Isolation feedback module；16, data display screen；17, control button；101, ground fault parameter checks module；102, short
Road fault parameter checks module；103, normal parameter checks module.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the embodiment of the present invention provides a kind of technical solution: a kind of high precision collecting direct current protecting device,
Including industrial personal computer 1, positive bus-bar resistive module 2, negative busbar resistive module 3, Remote parameter control module 4, branch trouble alarm mould
Block 5, power down alarm module 6 and Fault Isolation feedback module 15, the output of positive bus-bar resistive module 2 and negative busbar resistive module 3
End is connect with the input terminal of resistance test module 7, and positive bus-bar resistive module 2 and negative busbar resistive module 3 are copper-manganese material,
The output end of resistance test module 7 is connect with the input terminal of current calculation module 8, and the output end of current calculation module 8 with
The input terminal of industrial personal computer 1 connects, and the output end of industrial personal computer 1 is connect with the input terminal of data comparison module 9, data comparison module 9
Output end connect with the input terminal of breakdown judge system 10, and the output end of breakdown judge system 10 and industrial personal computer 1 is defeated
Enter end connection, the output end of industrial personal computer 1 is connect with the input terminal of shunt release 11.
In the present invention, the output end of industrial personal computer 1 is connect with the input terminal of GPS synchronised clock module 12, GPS synchronised clock mould
The effect of block 12 is positioning timing, and the output end of GPS synchronised clock module 12 is connect with the input terminal of wireless communication module 13, and
And the output end of wireless communication module 13 is connect with the input terminal of mobile terminal 14, wireless communication module 13 is with 3G or 4G network
Carrier, preferably 4G network.
In the present invention, the output end of Fault Isolation feedback module 15 is connect with the input terminal of industrial personal computer 1, Remote parameter control
The output end of module 4 is connect with the input terminal of industrial personal computer 1, and Remote parameter control module 4 is maintenance personnel's client.
In the present invention, input terminal of the output end of branch trouble alarm module 5 and power down alarm module 6 with industrial personal computer 1
Connection.
In the present invention, breakdown judge system 10 includes ground fault parameter verification module 101, short trouble parameter verification mould
Block 102 and normal parameter check module 103.
In the present invention, the surface of industrial personal computer 1 is fixedly connected with data display screen 16, the surface of industrial personal computer 1 and is located at data
The lower section of display screen 16 is provided with control button 17, and the surface of industrial personal computer 1 and the side for being located at data display screen 16 are equipped with event
Hinder display lamp.
The invention also discloses a kind of high precision collecting direct current protecting methods, specifically includes the following steps:
S1, the voltammetry circuitry that the route for testing circuit is uniformly changed into copper-manganese material, positive and negative direct current bus go here and there one respectively
Positive bus-bar resistive module 2 and negative busbar resistive module 3, so that resistance test module 7 can pass through positive bus-bar resistive module 2 and negative mother
Line resistance module 3 tests resistance both end voltage and negative busbar resistance both end voltage, 8 accounting of current calculation module on positive bus-bar respectively
It calculates electric current and is sent to industrial personal computer 1；
S2, in the process of running, current values can be sent to data comparison module 9 by industrial personal computer 1, thus data comparison mould
Block 9 can calculate the difference of positive bus-bar current value and negative busbar current value, and difference is sent to breakdown judge system 10, make
Module 101, short trouble parameter verification module 102 can be checked by the ground fault parameter in breakdown judge system 10 with preceding
The corresponding parameter value of each state is inputted respectively with normal parameter verification module 103, so that breakdown judge system 10 can be according to it
Preceding preset parameter value carrys out decision circuitry with the presence or absence of failure, if the difference of positive pole line current value and negative busbar current value with before
Preset ground fault parameter matches, then is ground fault, if the difference of positive pole line current value and negative busbar current value is therewith
Preceding preset short trouble parameter matches, then is short trouble, if the difference of positive pole line current value and negative busbar current value with
Preset normal parameter matches before, then circuit is normal condition；
If S3, detecting there is short trouble on DC bus, industrial personal computer 1 can show that fault-signal, industrial personal computer 1 can pass through
GPS synchronised clock module 12 carries out positioning to abort situation and fault time is determined, can be by wireless after determining
Communication module 13 issues fault message to the mobile terminal 14 of maintenance personnel, and industrial personal computer 1 can be issued to shunt release 11
The corresponding command, Fault Isolation, Fault Isolation feedback module 15 can detect failure and be whether success, and by isolation result to industry control
Machine 1 issues feedback, if short trouble is isolated not successfully, industrial personal computer 1 can shifting by from wireless communication module 13 to maintenance personnel
Dynamic 14 alert of terminal, always supervises staff to take artificial compulsive means to carry out Fault Isolation to scene；
If S4, detecting there is ground fault on DC bus, industrial personal computer 1 shows that earth-fault signal, industrial personal computer 1 can pass through
Wireless communication module 13 issues ground fault information to the mobile terminal 14 of maintenance personnel, but does not issue isolation ground fault
Order, but allowing in the ground fault time, it waits staff that scene is gone to check, transfers to artificial treatment；
S5, in circuit operational process, branch trouble alarm module 5 and power down alarm module 6 can respectively monitoring branch therefore
Barrier and power-down conditions will do it alarm, and pass through the 12 pairs of events of GPS synchronised clock module if occurring exception in the detection process
Barrier position carries out positioning and fault time is determined, and can be sent out fault message by wireless communication module 13 after determining
It send to the mobile terminal 14 of maintenance, so that maintenance personnel be notified to check in time to scene, maintenance personnel can also be by remote
Journey parameter control module 4 is arranged different hierarchical protection sequences, the trip time, delay time etc., so that operator can be with
It does not go scene, directly to remotely operate.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of high precision collecting direct current protecting device, including industrial personal computer (1), positive bus-bar resistive module (2), negative busbar resistive mode
Block (3), Remote parameter control module (4), branch trouble alarm module (5), power down alarm module (6) and Fault Isolation feed back mould
Block (15), it is characterised in that: the output end of the positive bus-bar resistive module (2) and negative busbar resistive module (3) is surveyed with resistance
The input terminal of die trial block (7) connects, and the output end of the resistance test module (7) and the input terminal of current calculation module (8) connect
Connect, and the output end of current calculation module (8) is connect with the input terminal of industrial personal computer (1), the output end of the industrial personal computer (1) with
The input terminal of data comparison module (9) connects, and the output end of the data comparison module (9) is defeated with breakdown judge system (10)
Enter end connection, and the output end of breakdown judge system (10) is connect with the input terminal of industrial personal computer (1), the industrial personal computer (1)
Output end is connect with the input terminal of shunt release (11).
2. a kind of high precision collecting direct current protecting device according to claim 1, it is characterised in that: the industrial personal computer (1)
Output end connect with the input terminal of GPS synchronised clock module (12), the output end and nothing of the GPS synchronised clock module (12)
The input terminal of line communication module (13) connects, and the input terminal of the output end of wireless communication module (13) and mobile terminal (14)
Connection.
3. a kind of high precision collecting direct current protecting device according to claim 1, it is characterised in that: the Fault Isolation is anti-
The output end of feedback module (15) is connect with the input terminal of industrial personal computer (1), the output end and work of the Remote parameter control module (4)
The input terminal of control machine (1) connects.
4. a kind of high precision collecting direct current protecting device according to claim 1, it is characterised in that: the branch trouble report
The output end of alert module (5) and power down alarm module (6) is connect with the input terminal of industrial personal computer (1).
5. a kind of high precision collecting direct current protecting device according to claim 1, it is characterised in that: the breakdown judge system
System (10) includes ground fault parameter verification module (101), short trouble parameter verification module (102) and normal parameter verification mould
Block (103).
6. a kind of high precision collecting direct current protecting device according to claim 1, it is characterised in that: the industrial personal computer (1)
Surface be fixedly connected with data display screen (16), the surface of the industrial personal computer (1) and be located at data display screen (16) lower section
It is provided with control button (17), the surface of the industrial personal computer (1) and the side installation for being located at data display screen (16) is faulty aobvious
Show lamp.
7. a kind of high precision collecting direct current protecting device described in -6 any one according to claim 1, it is characterised in that: it is protected
Maintaining method specifically includes the following steps:
S1, the voltammetry circuitry that the route for testing circuit is uniformly changed into copper-manganese material, positive and negative direct current bus go here and there a positive pole respectively
Line resistance module (2) and negative busbar resistive module (3), thus resistance test module (7) can by positive bus-bar resistive module (2) and
Negative busbar resistive module (3) tests resistance both end voltage and negative busbar resistance both end voltage on positive bus-bar respectively, and electric current calculates mould
Block (8) can calculate electric current and be sent to industrial personal computer (1)；
S2, in the process of running, current values can be sent to data comparison module (9) by industrial personal computer (1), thus data comparison mould
Block (9) can calculate the difference of positive bus-bar current value and negative busbar current value, and difference is sent to breakdown judge system (10),
Module (101), short trouble parameter core can be checked by the ground fault parameter in breakdown judge system (10) before use
The corresponding parameter value of each state is inputted respectively to module (102) and normal parameter verification module (103), thus breakdown judge system
System (10) can whether there is failure according to preset parameter value before come decision circuitry, if positive pole line current value and negative busbar electric current
The difference of value matches with preset ground fault parameter before, then is ground fault, if positive pole line current value and negative busbar electricity
The difference of flow valuve matches with preset short trouble parameter before, then is short trouble, if positive pole line current value and negative busbar
The difference of current value matches with preset normal parameter before, then circuit is normal condition；
If S3, detecting there is short trouble on DC bus, industrial personal computer (1) can show that fault-signal, industrial personal computer (1) can pass through
GPS synchronised clock module (12) carries out positioning to abort situation and fault time is determined, and can pass through nothing after determining
Line communication module (13) issues fault message to the mobile terminal (14) of maintenance personnel, and industrial personal computer (1) can be to shunted exciter tripping
Device (11) issues the corresponding command, and Fault Isolation, Fault Isolation feedback module (15) can detect failure and be whether success, and will be every
It issues and feeds back to industrial personal computer (1) from result, if short trouble is isolated not successfully, industrial personal computer (1) can pass through wireless communication module
(13) to the mobile terminal of maintenance personnel (14) alert, staff is always supervised to take artificial pressure hand to scene
Duan Jinhang Fault Isolation；
If S4, detecting there is ground fault on DC bus, industrial personal computer (1) shows that earth-fault signal, industrial personal computer (1) can pass through
Wireless communication module (13) issues ground fault information to the mobile terminal (14) of maintenance personnel, but does not issue isolation ground connection event
The order of barrier, but allowing in the ground fault time, it waits staff that scene is gone to check, transfers to artificial treatment；
S5, in circuit operational process, branch trouble alarm module (5) and power down alarm module (6) can respectively monitoring branch therefore
Barrier and power-down conditions will do it alarm, and right by GPS synchronised clock module (12) if occurring exception in the detection process
Abort situation carries out positioning and fault time is determined, and can be believed failure by wireless communication module (13) after determining
Breath is sent to the mobile terminal (14) of maintenance, so that maintenance personnel be notified to check in time to scene, maintenance personnel can also be with
Different hierarchical protection sequences, trip time, delay time etc., so that operation are set by Remote parameter control module (4)
Personnel can not go scene, directly to remotely operate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927510.6A CN110518547A (en) | 2019-09-27 | 2019-09-27 | A kind of high precision collecting direct current protecting devices and methods therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910927510.6A CN110518547A (en) | 2019-09-27 | 2019-09-27 | A kind of high precision collecting direct current protecting devices and methods therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110518547A true CN110518547A (en) | 2019-11-29 |
Family
ID=68632757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910927510.6A Pending CN110518547A (en) | 2019-09-27 | 2019-09-27 | A kind of high precision collecting direct current protecting devices and methods therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110518547A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988732A (en) * | 2019-12-18 | 2020-04-10 | 中石大蓝天(青岛)石油技术有限公司 | Multi-source mutual-feed direct-current wide-input fault removing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478154A (en) * | 2008-01-06 | 2009-07-08 | 卢贺成 | Measure for solving AC, DC earthing and short circuit and novel design of DC system |
| CN202533545U (en) * | 2012-04-13 | 2012-11-14 | 常熟皇朝信息科技有限公司 | Power transmission network fault detection system based on internet of things technology |
| US20130262922A1 (en) * | 2012-03-27 | 2013-10-03 | State Grid Corporation Of China | Centralized and networked protection system and method of a regional distribution network |
| CN104677417A (en) * | 2014-12-25 | 2015-06-03 | 国家电网公司 | Fault detection system and method for power transmission line |
| CN110212497A (en) * | 2019-03-28 | 2019-09-06 | 国网辽宁省电力有限公司电力科学研究院 | Based on the substation of fault location DC power supply active protective device and guard method |
-
2019
- 2019-09-27 CN CN201910927510.6A patent/CN110518547A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101478154A (en) * | 2008-01-06 | 2009-07-08 | 卢贺成 | Measure for solving AC, DC earthing and short circuit and novel design of DC system |
| US20130262922A1 (en) * | 2012-03-27 | 2013-10-03 | State Grid Corporation Of China | Centralized and networked protection system and method of a regional distribution network |
| CN202533545U (en) * | 2012-04-13 | 2012-11-14 | 常熟皇朝信息科技有限公司 | Power transmission network fault detection system based on internet of things technology |
| CN104677417A (en) * | 2014-12-25 | 2015-06-03 | 国家电网公司 | Fault detection system and method for power transmission line |
| CN110212497A (en) * | 2019-03-28 | 2019-09-06 | 国网辽宁省电力有限公司电力科学研究院 | Based on the substation of fault location DC power supply active protective device and guard method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988732A (en) * | 2019-12-18 | 2020-04-10 | 中石大蓝天(青岛)石油技术有限公司 | Multi-source mutual-feed direct-current wide-input fault removing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104677417B (en) | A kind of fault detection system and its detection method for transmission line of electricity | |
| CN106501656A (en) | A kind of on-line acquisition system of distribution line failure waveform | |
| CN106646104A (en) | Power distribution network fault diagnosis method | |
| CN102937675A (en) | Real-time data collecting and fault positioning system of power distribution network and working method thereof | |
| CN106556754A (en) | A kind of online acquisition method of distribution line failure waveform | |
| CN102798803B (en) | Method for detecting line fault of power distribution network | |
| CN103376387A (en) | Transmission grid fault detection system and method based on internet of thing technology | |
| CN204758748U (en) | Cubical switchboard intelligent integrated monitoring devices | |
| CN106501671A (en) | A kind of monitoring method of electric distribution network overhead wire failure | |
| CN103995214A (en) | Overhead line intelligent fault positioning processing system and method thereof | |
| CN106501657A (en) | A kind of monitoring system of electric distribution network overhead wire failure | |
| CN109274177A (en) | Power distribution station safety utilization of electric power monitoring system and monitoring method | |
| CN102129005B (en) | Transformer substation/power plant secondary circuit direct-current ground indicator and application thereof | |
| CN204666767U (en) | Transmission line malfunction on-line detecting system | |
| CN107436393A (en) | Fuse switch on-Line Monitor Device and method based on Internet of Things Network Communication | |
| CN102565696A (en) | Quick measuring device of protective pressing plate and measuring method thereof | |
| CN106443362A (en) | Power distribution network fault detection system | |
| CN103888236A (en) | Clock synchronization monitoring method applicable to intelligent substation | |
| JP3229238U (en) | DC switch box and its monitoring system | |
| CN103235217A (en) | Monitoring device and method for consistency of dual-protection actions | |
| CN106646116A (en) | Trouble shooting and locating method for power distribution network | |
| CN110518547A (en) | A kind of high precision collecting direct current protecting devices and methods therefor | |
| CN202676825U (en) | Electrical and communication system grounding safety monitoring alarm device | |
| CN211123208U (en) | Direct-current ground fault finding experimental platform for DCS (distributed control system) of nuclear power plant | |
| CN101995839A (en) | Safety-level equipment cabinet monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191129 |
|
| RJ01 | Rejection of invention patent application after publication |