CN106546861A - DC system fault monitoring method and device - Google Patents
DC system fault monitoring method and device Download PDFInfo
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- CN106546861A CN106546861A CN201611132743.XA CN201611132743A CN106546861A CN 106546861 A CN106546861 A CN 106546861A CN 201611132743 A CN201611132743 A CN 201611132743A CN 106546861 A CN106546861 A CN 106546861A
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- 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
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- 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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
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- General Physics & Mathematics (AREA)
- Direct Current Feeding And Distribution (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a kind of DC system fault monitoring method and device.Wherein, the method includes：Determine failure mode to be monitored；The switch for needing to monitor in straight-flow system is determined according to failure mode to be monitored；Obtain the on off state of the switch for needing monitoring；The on off state of the switch monitored as needed judges that straight-flow system whether there is failure mode to be monitored.The present invention cannot accurately judge whether accumulator battery departs from the technical problem of dc bus in solving correlation technique.
Description
Technical field
The present invention relates to malfunction monitoring field, in particular to a kind of DC system fault monitoring method and device.
Background technology
Storage batteries of transformer substation group is increasingly taken seriously as the core of straight-flow system, therefore accumulator is supervised online
Examining system application is more and more extensive, but is not monitored to whether accumulator battery is connected on dc bus in practical application.
Straight-flow system on off state can cause accumulator battery to depart from dc bus, traditional DC power system monitoring extremely
The location status of the important switch of straight-flow system can be monitored, but all be merely resting on the aspect of monitoring switch remote signalling amount,
Simply division gate position of simple each switch of monitoring, does not carry out comprehensive analysis to straight-flow system switch and judges, only with
One switches on-off and cannot accurately judge whether accumulator battery departs from dc bus.
For cannot accurately judge whether accumulator battery departs from the technical problem of dc bus in correlation technique, at present not yet
Propose effective solution.
The content of the invention
A kind of DC system fault monitoring method and device are embodiments provided, at least to solve in correlation technique
Cannot accurately judge whether accumulator battery departs from the technical problem of dc bus.
One side according to embodiments of the present invention, there is provided a kind of DC system fault monitoring method, the method include：
Determine failure mode to be monitored；The switch for needing to monitor in straight-flow system is determined according to failure mode to be monitored；Obtaining needs
The on off state of switch to be monitored；The on off state of the switch monitored as needed judges straight-flow system with the presence or absence of to be monitored
Failure mode.
Further, straight-flow system includes at least one section dc bus and at least one accumulator battery, wherein, at least one
Section dc bus and at least one accumulator battery connect one to one, and at least one section dc bus includes first paragraph dc bus,
At least one accumulator battery includes the first accumulator battery, wherein, first paragraph dc bus and the first accumulator battery pass through first group
Switch connection, failure mode to be monitored includes whether the first accumulator battery departs from first paragraph dc bus, it is determined that to be monitored
Failure mode whether depart from first paragraph dc bus for the first accumulator battery after, the method also includes：If it is judged that treating
Whether the failure mode of monitoring departs from first paragraph dc bus for the first accumulator battery, obtains the switch of first group of switch of monitoring
State；The on off state of each switch in first group of switch is judged；If there is any one in first group of switch
The switch of disconnection, it is determined that the first accumulator battery departs from first paragraph dc bus.
Further, first paragraph dc bus is by least one bar coupler and at least one section dc bus
Partial DC bus section, busbar section is connected, wherein, at least one bar coupler is corresponded with Partial DC bus section, busbar section, to be monitored
Failure mode also include first paragraph dc bus whether dead electricity, it is determined that failure mode to be monitored is first paragraph dc bus
Whether after dead electricity, the method also includes：Judge whether the first accumulator battery departs from first paragraph dc bus；If it is judged that the
One accumulator battery then judges the non-dead electricity of first paragraph dc bus without departing from first paragraph dc bus；If it is judged that first stores
Set of cells departs from first paragraph dc bus, then obtain the on off state of at least one bar coupler；If it is judged that at least
One bar coupler is all off, then judge first paragraph dc bus dead electricity.
Further, after the on off state for obtaining at least one bar coupler, the method also includes：If sentenced
Break and to exist the switch of conducting at least one bar coupler, then determine direct current corresponding with the switch of each conducting respectively
Whether the accumulator battery corresponding to bus section, busbar section departs from；If it is judged that dc bus section institute corresponding with the switch that each turns on is right
There is any one accumulator battery in the accumulator battery answered without departing from then judging the non-dead electricity of first paragraph dc bus；Otherwise, judge
Go out first paragraph dc bus dead electricity.
Further, the on off state in the switch monitored as needed judges straight-flow system with the presence or absence of event to be monitored
After barrier species, the method also includes：If it is judged that straight-flow system has the corresponding failure of failure mode to be monitored, then open
Begin to send alarm to remote terminal；The stop alarm instruction that remote terminal is sent after alarm is received is received,
And stop sending alarm to remote terminal in response to stop alarm instruction.
Another aspect according to embodiments of the present invention, additionally provides a kind of DC system fault monitoring device, the device bag
Include：First determining unit, for determining failure mode to be monitored；Second determining unit, for according to failure kind to be monitored
Class needs the switch monitored in determining straight-flow system；Acquiring unit, for obtaining the on off state of the switch for needing monitoring；Judge
Unit, the on off state of the switch for monitoring as needed judge that straight-flow system whether there is failure mode to be monitored.
Further, straight-flow system includes at least one section dc bus and at least one accumulator battery, wherein, at least one
Section dc bus and at least one accumulator battery connect one to one, and at least one section dc bus includes first paragraph dc bus,
At least one accumulator battery includes the first accumulator battery, wherein, first paragraph dc bus and the first accumulator battery pass through first group
Switch connection, failure mode to be monitored include whether the first accumulator battery departs from first paragraph dc bus, and acquiring unit is also used
In after it is determined that whether failure mode to be monitored departs from first paragraph dc bus for the first accumulator battery, if it is judged that treating
Whether the failure mode of monitoring departs from first paragraph dc bus for the first accumulator battery, obtains the switch of first group of switch of monitoring
State；Judging unit is additionally operable to judge the on off state of each switch in first group of switch；The device also includes：The
Three determining units, for there is any one disconnection in first group of switch switch when, determine that the first accumulator battery departs from the
One section of dc bus.
Further, first paragraph dc bus is by least one bar coupler and at least one section dc bus
Partial DC bus section, busbar section is connected, wherein, at least one bar coupler is corresponded with Partial DC bus section, busbar section, to be monitored
Failure mode also include first paragraph dc bus whether dead electricity, judging unit is additionally operable to it is determined that failure mode to be monitored is
Whether first paragraph dc bus after dead electricity, judges whether the first accumulator battery departs from first paragraph dc bus, wherein, if sentenced
Break and the first accumulator battery without departing from first paragraph dc bus, then judge the non-dead electricity of first paragraph dc bus；The device is also wrapped
Include：3rd acquiring unit, for, after judging that the first accumulator battery departs from first paragraph dc bus, obtaining at least one female
The on off state of line interconnection switch, wherein, if it is judged that at least one bar coupler is all off, then judge first
Section dc bus dead electricity.
Further, after the on off state for obtaining at least one bar coupler, the device also includes：If sentenced
Break and to exist the switch of conducting at least one bar coupler, then determine direct current corresponding with the switch of each conducting respectively
Whether the accumulator battery corresponding to bus section, busbar section departs from；If it is judged that dc bus section institute corresponding with the switch that each turns on is right
There is any one accumulator battery in the accumulator battery answered without departing from then judging the non-dead electricity of first paragraph dc bus；Otherwise, judge
Go out first paragraph dc bus dead electricity.
Further, the device also includes：Transmitting element, judges for the on off state in the switch monitored as needed
After straight-flow system whether there is failure mode to be monitored, if it is judged that there is failure mode pair to be monitored in straight-flow system
The failure answered, then start to send alarm to remote terminal；Performance element, carries receiving warning for receiving remote terminal
Show the stop alarm instruction for sending afterwards, and stop alarm being sent to remote terminal in response to stop alarm instruction.
In embodiments of the present invention, by determining failure mode to be monitored；Determined according to failure mode to be monitored straight
The switch monitored is needed in streaming system；Obtain the on off state of the switch for needing monitoring；The switch of the switch monitored as needed
Condition adjudgement straight-flow system whether there is failure mode to be monitored, cannot accurately judge accumulator battery in solving correlation technique
Whether depart from the technical problem of dc bus, and then realize the skill for more accurately judging whether accumulator battery departs from dc bus
Art effect.
Description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of a kind of optional DC system fault monitoring method according to embodiments of the present invention；
Fig. 2 is the schematic diagram of a kind of optional straight-flow system according to embodiments of the present invention；
Fig. 3 is the schematic diagram of a kind of optional DC system fault monitoring device according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment obtained under the premise of creative work is not made by member, should all belong to the model of present invention protection
Enclose.
It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except here diagram or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, and for example, process, method, system, product or the equipment for containing series of steps or unit is not necessarily limited to
Those steps clearly listed or unit, but may include clearly not list or for these processes, method, product
Or intrinsic other steps of equipment or unit.
According to the embodiment of the present application, there is provided a kind of embodiment of DC system fault monitoring method.
Fig. 1 is the flow chart of a kind of optional DC system fault monitoring method according to embodiments of the present invention, such as Fig. 1 institutes
Show, the method comprises the steps：
Step S101, determines failure mode to be monitored；
Step S102, determines the switch for needing to monitor in straight-flow system according to failure mode to be monitored；
Step S103, obtains the on off state of the switch for needing monitoring；
Step S104, the on off state of the switch monitored as needed judge that straight-flow system whether there is failure to be monitored
Species.
Below above-mentioned steps are further explained and are described as follows：
Determine that failure mode to be monitored can be set in advance, specifically, can manually select, each failure
The switch of species correspondence monitoring in need, it is determined that after failure mode to be monitored, it may be determined that going out in straight-flow system needs
The switch of monitoring.
Obtain the on off state of the switch for needing monitoring, the on off state comprehensive descision direct current of the switch monitored as needed
Whether there is failure mode to be monitored in system.
For example, there is accumulator battery and dc bus in straight-flow system, between accumulator battery and dc bus, pass through two
Switch is connected, and the two switches are respectively and feed out total lock and accumulator disconnecting link, female if necessary to monitoring accumulator battery and direct current
Whether line departs from, then monitoring feeds out total lock and accumulator disconnecting link, if any one switch is to disconnect, then judges electric power storage
Pond group is departed from bus.
The embodiment is by determining failure mode to be monitored；Need in straight-flow system are determined according to failure mode to be monitored
Switch to be monitored；Obtain the on off state of the switch for needing monitoring；The on off state of the switch monitored as needed judges straight
Streaming system whether there is failure mode to be monitored, cannot accurately judge whether accumulator battery departs from directly in solving correlation technique
The technical problem of stream bus, and then realize the technique effect for more accurately judging whether accumulator battery departs from dc bus.
Preferably, straight-flow system includes at least one section dc bus and at least one accumulator battery, wherein, at least one section
Dc bus and at least one accumulator battery connect one to one, and at least one section dc bus includes first paragraph dc bus, extremely
A few accumulator battery includes the first accumulator battery, wherein, first paragraph dc bus is opened by first group with the first accumulator battery
Connection connects, and failure mode to be monitored includes whether the first accumulator battery departs from first paragraph dc bus, it is determined that to be monitored
After whether failure mode departs from first paragraph dc bus for the first accumulator battery, the method also includes：If it is judged that waiting to supervise
Whether the failure mode of survey departs from first paragraph dc bus for the first accumulator battery, obtains the switch shape of first group of switch of monitoring
State；The on off state of each switch in first group of switch is judged；If there is any one to break in first group of switch
The switch opened, it is determined that the first accumulator battery departs from first paragraph dc bus.
Preferably, first paragraph dc bus is by the portion at least one bar coupler and at least one section dc bus
Dc bus section is divided to be connected, wherein, at least one bar coupler is corresponded with Partial DC bus section, busbar section, to be monitored
Failure mode also includes first paragraph dc bus whether dead electricity, it is determined that failure mode to be monitored for first paragraph dc bus is
After no dead electricity, the method also includes：Judge whether the first accumulator battery departs from first paragraph dc bus；If it is judged that first
Accumulator battery then judges the non-dead electricity of first paragraph dc bus without departing from first paragraph dc bus；If it is judged that the first electric power storage
Pond group departs from first paragraph dc bus, then obtain the on off state of at least one bar coupler；If it is judged that at least one
Individual bar coupler is all off, then judge first paragraph dc bus dead electricity.
Preferably, after the on off state for obtaining at least one bar coupler, the method also includes：If it is determined that
Go out to exist the switch of conducting at least one bar coupler, then determine that direct current corresponding with the switch of each conducting is female respectively
Whether the accumulator battery corresponding to line segment departs from；If it is judged that corresponding to dc bus section corresponding with the switch that each turns on
Accumulator battery in have any one accumulator battery without departing from then judging the non-dead electricity of first paragraph dc bus；Otherwise, judge
First paragraph dc bus dead electricity.
Preferably, the on off state in the switch monitored as needed judges that straight-flow system whether there is failure to be monitored
After species, the method also includes：If it is judged that straight-flow system has the corresponding failure of failure mode to be monitored, then start
Alarm is sent to remote terminal；The stop alarm instruction that remote terminal is sent after alarm is received is received, and
Stop sending alarm to remote terminal in response to stop alarm instruction.
A kind of specific embodiment is described with reference to the straight-flow system provided in Fig. 2：
The straight-flow system provided in Fig. 2 is included by two sections of separate dc bus of bus contact lock, every section of dc bus
There are two buses, first paragraph dc bus total lock is fed out by I sections and accumulator lock 1 is connected with accumulator battery 1, second segment
Dc bus feeds out total lock by II sections and accumulator lock 2 is connected with accumulator battery 2.Accumulator battery 1 by charge switch 1 with
Charging device 1 is connected, and is connected with discharge load by discharge switch 1.Accumulator battery 2 is by charge switch 2 and the dress that charges
Put 2 to be connected, and be connected with discharge load by discharge switch 2.
For the straight-flow system provided in Fig. 2, total lock, II section of feedback are fed out first to straight-flow system bus contact disconnecting link, I section
Go out Zong Zha, I group storage battery disconnecting link, II group storage battery disconnecting link each switch division gate position be acquired, collecting each knife
After the position of the switch of lock switch, can be by whether there is failure in following logical judgment straight-flow system：
1) feed out total lock, I group storage battery chopper switchs position to judge to I section, two switches have a switch separating brake,
Then judge that I group storage battery group departs from bus；
2) feed out total lock, II group storage battery chopper switch position to judge to II section, two switches have a switch point
Lock, then judge that II group storage battery group departs from bus；
3) position of the switch that two, total lock switch is fed out to straight-flow system bus contact disconnecting link, I section carry out logical judgment, and two
Individual switch is simultaneously switched off, and I group storage batteries depart from dc bus, and I section of dc bus dead electricity；
4) position of the switch that two switches of total lock are fed out to straight-flow system bus contact disconnecting link, II section carries out logical judgment,
Two switches are simultaneously switched off, and II group storage battery departs from dc bus, and II section of dc bus dead electricity；
5) straight-flow system bus contact disconnecting link, I section are fed out total lock, II section feed out three position of the switch of total lock and carry out logic
Judge, three switches there are two to switch off then there is one section of dc bus dead electricity, three switches close any twos, then direct current
Bus will not dead electricity.
The specific embodiment carries out integrated logic by the important position of the switch state of DC power system to collecting
Judge, whether real-time monitoring accumulator battery departs from dc bus, real-time monitoring DC power system whether there is dead electricity risk, one
Denier accumulator battery can be alerted after departing from dc bus or straight-flow system switch exception immediately, remind operation maintenance personnel to carry out system
Investigation, effectively avoids occurring causing the problem of straight-flow system dead electricity because of accumulator battery disengaging dc bus.
It should be noted that can perform in the terminal the step of the flow process of accompanying drawing is illustrated, and, although in flow process
Show logical order in figure, but in some cases, can be shown or described to perform different from order herein
Step.
According to the embodiment of the present application, there is provided a kind of embodiment of DC system fault monitoring device.
Fig. 3 is the schematic diagram of a kind of optional DC system fault monitoring device according to embodiments of the present invention, such as Fig. 3 institutes
Show, the device includes the first determining unit 10, the second determining unit 20, acquiring unit 30 and judging unit 40.
First determining unit, for determining failure mode to be monitored；Second determining unit, for according to event to be monitored
Barrier species needs the switch monitored in determining straight-flow system；Acquiring unit, for obtaining the on off state of the switch for needing monitoring；
Judging unit, the on off state of the switch for monitoring as needed judge that straight-flow system whether there is failure kind to be monitored
Class.
Preferably, straight-flow system includes at least one section dc bus and at least one accumulator battery, wherein, at least one section
Dc bus and at least one accumulator battery connect one to one, and at least one section dc bus includes first paragraph dc bus, extremely
A few accumulator battery includes the first accumulator battery, wherein, first paragraph dc bus is opened by first group with the first accumulator battery
Connection connects, and failure mode to be monitored includes whether the first accumulator battery departs from first paragraph dc bus, and acquiring unit is additionally operable to
After it is determined that whether failure mode to be monitored departs from first paragraph dc bus for the first accumulator battery, if it is judged that waiting to supervise
Whether the failure mode of survey departs from first paragraph dc bus for the first accumulator battery, obtains the switch shape of first group of switch of monitoring
State；Judging unit is additionally operable to judge the on off state of each switch in first group of switch；The device also includes：3rd
Determining unit, for exist in first group of switch any one disconnection switch when, determine the first accumulator battery depart from first
Section dc bus.
Preferably, first paragraph dc bus is by the portion at least one bar coupler and at least one section dc bus
Dc bus section is divided to be connected, wherein, at least one bar coupler is corresponded with Partial DC bus section, busbar section, to be monitored
Failure mode also includes first paragraph dc bus whether dead electricity, and judging unit is additionally operable to it is determined that failure mode to be monitored is the
Whether one section of dc bus after dead electricity, judges whether the first accumulator battery departs from first paragraph dc bus, wherein, if it is determined that
Go out the first accumulator battery without departing from first paragraph dc bus, then judge the non-dead electricity of first paragraph dc bus；The device also includes：
3rd acquiring unit, for, after judging that the first accumulator battery departs from first paragraph dc bus, obtaining at least one bus
The on off state of interconnection switch, wherein, if it is judged that at least one bar coupler is all off, then judge first paragraph
Dc bus dead electricity.
Preferably, after the on off state for obtaining at least one bar coupler, the device also includes：If it is determined that
Go out to exist the switch of conducting at least one bar coupler, then determine that direct current corresponding with the switch of each conducting is female respectively
Whether the accumulator battery corresponding to line segment departs from；If it is judged that corresponding to dc bus section corresponding with the switch that each turns on
Accumulator battery in have any one accumulator battery without departing from then judging the non-dead electricity of first paragraph dc bus；Otherwise, judge
First paragraph dc bus dead electricity.
Preferably, the device also includes：Transmitting element, judges straight for the on off state in the switch monitored as needed
After streaming system whether there is failure mode to be monitored, if it is judged that there is failure mode correspondence to be monitored in straight-flow system
Failure, then start to remote terminal send alarm；Performance element, is receiving alarm for receiving remote terminal
The stop alarm instruction for sending afterwards, and stop sending alarm to remote terminal in response to stop alarm instruction.
Above-mentioned device can include processor and memorizer, and said units can be stored in storage as program unit
In device, corresponding function is realized by computing device storage said procedure unit in memory.
Memorizer potentially includes the volatile memory in computer-readable medium, random access memory (RAM) and/
Or the form, such as read only memory (ROM) or flash memory (flashRAM) such as Nonvolatile memory, memorizer includes at least one storage
Chip.
The sortord of above-mentioned the embodiment of the present application is for illustration only, does not represent the quality of embodiment.
In above-described embodiment of the application, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, can pass through other
Mode is realized.Wherein, device embodiment described above is only schematic, such as the division of described unit, Ke Yiwei
A kind of division of logic function, can have when actually realizing other dividing mode, such as multiple units or component can with reference to or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
In addition, each functional unit in the application each embodiment can be integrated in a processing unit, it is also possible to
It is that unit is individually physically present, it is also possible to which two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized and as independent production marketing or use using in the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, the technical scheme of the application is substantially
The part for contributing to prior art in other words or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, use so that a computer including some instructions
Equipment (can be personal computer, server or network equipment etc.) perform the whole of the application each embodiment methods described or
Part steps.And aforesaid storage medium includes：USB flash disk, read only memory (ROM, Read-Only Memory), random access memory are deposited
Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred implementation of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of without departing from the application principle, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of DC system fault monitoring method, it is characterised in that methods described includes：
Determine failure mode to be monitored；
The switch for needing to monitor in straight-flow system is determined according to the failure mode to be monitored；
Obtain the on off state of the switch for needing monitoring；
Judge that the straight-flow system whether there is the failure to be monitored according to the on off state of the switch for needing monitoring
Species.
2. method according to claim 1, it is characterised in that the straight-flow system include at least one section dc bus and
At least one accumulator battery, wherein, at least one section dc bus and at least one accumulator battery connect one to one,
At least one section dc bus includes first paragraph dc bus, and at least one accumulator battery includes the first accumulator battery,
Wherein, the first paragraph dc bus is connected by first group of switch with first accumulator battery, the failure to be monitored
Species includes whether first accumulator battery departs from the first paragraph dc bus,
After it is determined that whether failure mode to be monitored departs from the first paragraph dc bus for first accumulator battery, institute
Stating method also includes：
If it is judged that whether the failure mode to be monitored departs from the first paragraph direct current mother for first accumulator battery
Line, obtains the on off state of first group of switch of monitoring；
The on off state of each switch in first group of switch is judged；
If there is the switch of any one disconnection in first group of switch, it is determined that first accumulator battery departs from described
First paragraph dc bus.
3. method according to claim 2, it is characterised in that the first paragraph dc bus is joined by least one bus
Network switch is connected with the Partial DC bus section, busbar section at least one section dc bus, wherein, at least one bus connection
Network is switched and is corresponded with the Partial DC bus section, busbar section, and the failure mode to be monitored also includes that the first paragraph direct current is female
Line whether dead electricity,
It is determined that failure mode to be monitored is the first paragraph dc bus whether after dead electricity, methods described also includes：
Judge whether first accumulator battery departs from the first paragraph dc bus；
If it is judged that first accumulator battery is without departing from the first paragraph dc bus, then the first paragraph direct current is judged
The non-dead electricity of bus；
If it is judged that first accumulator battery departs from the first paragraph dc bus, then at least one bus connection is obtained
The on off state of network switch；
If it is judged that at least one bar coupler is all off, then judge that the first paragraph dc bus loses
Electricity.
4. method according to claim 3, it is characterised in that in the switch for obtaining at least one bar coupler
After state, methods described also includes：
If it is judged that there is the switch of conducting at least one bar coupler, then determine respectively and lead with each Suo Shu
Whether the accumulator battery corresponding to the logical corresponding dc bus section of switch departs from；
If it is judged that having any one in accumulator battery corresponding to dc bus section corresponding with the switch of conducting each described
Individual accumulator battery is without departing from then judging the non-dead electricity of the first paragraph dc bus；
Otherwise, judge the first paragraph dc bus dead electricity.
5. method according to claim 1, it is characterised in that sentenced according to the on off state of the switch for needing monitoring
With the presence or absence of after the failure mode to be monitored, methods described also includes the straight-flow system of breaking：
If it is judged that the straight-flow system has the corresponding failure of the failure mode to be monitored, then start to remote terminal
Send alarm；
The stop alarm instruction that the remote terminal is sent after the alarm is received is received, and is stopped in response to described
Only alarm command stops sending the alarm to the remote terminal.
6. a kind of DC system fault monitoring device, it is characterised in that described device includes：
First determining unit, for determining failure mode to be monitored；
Second determining unit, needs the switch monitored for determining according to the failure mode to be monitored in straight-flow system；
Acquiring unit, for obtaining the on off state of the switch for needing monitoring；
Judging unit, for judging the straight-flow system with the presence or absence of described according to the on off state of the switch for needing monitoring
Failure mode to be monitored.
7. device according to claim 6, it is characterised in that the straight-flow system include at least one section dc bus and
At least one accumulator battery, wherein, at least one section dc bus and at least one accumulator battery connect one to one,
At least one section dc bus includes first paragraph dc bus, and at least one accumulator battery includes the first accumulator battery,
Wherein, the first paragraph dc bus is connected by first group of switch with first accumulator battery, the failure to be monitored
Species includes whether first accumulator battery departs from the first paragraph dc bus,
The acquiring unit is additionally operable to it is determined that whether failure mode to be monitored departs from described for first accumulator battery
After one section of dc bus, if it is judged that whether the failure mode to be monitored departs from described for first accumulator battery
First paragraph dc bus, obtains the on off state of first group of switch of monitoring；
The judging unit is additionally operable to judge the on off state of each switch in first group of switch；
Described device also includes：3rd determining unit, for the switch that there is any one disconnection in first group of switch
When, determine that first accumulator battery departs from the first paragraph dc bus.
8. device according to claim 7, it is characterised in that the first paragraph dc bus is joined by least one bus
Network switch is connected with the Partial DC bus section, busbar section at least one section dc bus, wherein, at least one bus connection
Network is switched and is corresponded with the Partial DC bus section, busbar section, and the failure mode to be monitored also includes that the first paragraph direct current is female
Line whether dead electricity,
The judging unit is additionally operable to it is determined that failure mode to be monitored is the first paragraph dc bus whether after dead electricity,
Judge whether first accumulator battery departs from the first paragraph dc bus, wherein, if it is judged that first accumulator
Group then judges the non-dead electricity of the first paragraph dc bus without departing from the first paragraph dc bus；
Described device also includes：3rd acquiring unit, for judging that it is straight that first accumulator battery departs from the first paragraph
After stream bus, the on off state of at least one bar coupler is obtained, wherein, if it is judged that described at least one
Bar coupler is all off, then judge the first paragraph dc bus dead electricity.
9. device according to claim 8, it is characterised in that in the switch for obtaining at least one bar coupler
After state, described device also includes：
If it is judged that there is the switch of conducting at least one bar coupler, then determine respectively and lead with each Suo Shu
Whether the accumulator battery corresponding to the logical corresponding dc bus section of switch departs from；
If it is judged that having any one in accumulator battery corresponding to dc bus section corresponding with the switch of conducting each described
Individual accumulator battery is without departing from then judging the non-dead electricity of the first paragraph dc bus；
Otherwise, judge the first paragraph dc bus dead electricity.
10. device according to claim 6, it is characterised in that described device also includes：
Transmitting element, for judging that the straight-flow system whether there is institute according to the on off state of the switch for needing monitoring
After stating failure mode to be monitored, if it is judged that there is the corresponding event of the failure mode to be monitored in the straight-flow system
Barrier, then start to send alarm to remote terminal；
Performance element, for receiving the stop alarm instruction that the remote terminal is sent after the alarm is received,
And stop sending the alarm to the remote terminal in response to stop alarm instruction.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132743.XA CN106546861B (en) | 2016-12-09 | 2016-12-09 | DC system fault monitoring method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132743.XA CN106546861B (en) | 2016-12-09 | 2016-12-09 | DC system fault monitoring method and device |
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| CN106546861A true CN106546861A (en) | 2017-03-29 |
| CN106546861B CN106546861B (en) | 2019-08-09 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965190U (en) * | 2010-12-31 | 2011-09-07 | 杭州奥能电源设备有限公司 | Insulation detecting device for direct current system |
| CN203025322U (en) * | 2012-12-11 | 2013-06-26 | 深圳奥特迅电力设备股份有限公司 | Detecting device of direct-current feeder switch |
| CN106093657A (en) * | 2016-07-19 | 2016-11-09 | 兰州海红技术股份有限公司 | Condition monitoring system for high-voltage direct current |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965190U (en) * | 2010-12-31 | 2011-09-07 | 杭州奥能电源设备有限公司 | Insulation detecting device for direct current system |
| CN203025322U (en) * | 2012-12-11 | 2013-06-26 | 深圳奥特迅电力设备股份有限公司 | Detecting device of direct-current feeder switch |
| CN106093657A (en) * | 2016-07-19 | 2016-11-09 | 兰州海红技术股份有限公司 | Condition monitoring system for high-voltage direct current |
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| 李晓英: "浅谈变电站直流电源系统设计", 《中国高新技术企业》 * |
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| CN106546861B (en) | 2019-08-09 |
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