CN209513932U - A kind of electric power DC system anti-misoperation apparatus - Google Patents
A kind of electric power DC system anti-misoperation apparatus Download PDFInfo
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- CN209513932U CN209513932U CN201821965242.4U CN201821965242U CN209513932U CN 209513932 U CN209513932 U CN 209513932U CN 201821965242 U CN201821965242 U CN 201821965242U CN 209513932 U CN209513932 U CN 209513932U
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Abstract
The utility model discloses a kind of electric power DC system anti-misoperation apparatus.It includes monitor terminal, data collector, collector of switching value, for monitoring the first busbar voltage monitoring modular of the first DC bus-bar voltage, for monitoring the second busbar voltage monitoring modular of the second DC bus-bar voltage, for monitoring the first accumulator voltage monitoring module of the first battery voltage, for monitoring the second accumulator voltage monitoring module of the second battery voltage, the collector of switching value respectively with the first accumulator voltage monitoring module, second accumulator voltage monitoring module, respectively switch electrical connection in electric power DC system, the data collector respectively with the first busbar voltage monitoring modular, second busbar voltage monitoring modular and collector of switching value electrical connection, the data collector is also electrically connected with monitor terminal.The utility model can judge automatically whether electric power DC system occurs maloperation, ensure electric power DC system safe and stable operation.
Description
Technical field
The utility model relates to electric power DC system technical fields more particularly to a kind of electric power DC system anti-misoperation to fill
It sets.
Background technique
Direct current system is always one of crucial importance but be easy ignored role in the power system, it is responsible for power generation
Factory and converting station electric power system relay protection and automatic device, breaker and the dress such as the operating mechanism of plug-in strip, emergency lighting is isolated
The power supply task set.It can be said that direct current system to maintenance power system security stablize it is most important.At this stage, pass through intelligence
With the application of automatic technology in the power system, electric power primary equipment is anti-error to be made very perfect, but direct current system from
Still there is missing in dynamicization degree and anti-error research.
Summary of the invention
In order to solve the above-mentioned technical problem the utility model, provides a kind of electric power DC system anti-misoperation apparatus,
Judge whether electric power DC system occurs by the variation of monitoring DC bus-bar voltage, battery voltage and each switching-state information
Maloperation ensures electric power DC system safe and stable operation.
To solve the above-mentioned problems, the utility model is achieved using following technical scheme:
A kind of electric power DC system anti-misoperation apparatus of the utility model, including monitor terminal, data collector, switch
Measure collector, the first busbar voltage monitoring modular for monitoring the first DC bus-bar voltage, for monitoring the second DC bus
Second busbar voltage monitoring modular of voltage, is used the first accumulator voltage monitoring module for monitoring the first battery voltage
In monitor the second battery voltage the second accumulator voltage monitoring module, the collector of switching value respectively with the first battery
Voltage monitoring module, the second accumulator voltage monitoring module, respectively switch electrical connection in electric power DC system, the data collector
It is electrically connected respectively with the first busbar voltage monitoring modular, the second busbar voltage monitoring modular and collector of switching value, the data
Collector is also electrically connected with monitor terminal.
In the present solution, first the first DC bus-bar voltage of busbar voltage monitoring module monitors, the monitoring of the second busbar voltage
The second DC bus-bar voltage of module monitors, first the first battery voltage of accumulator voltage monitoring module monitors, the second battery
Voltage monitoring module monitors the second battery voltage, and collector of switching value acquires the first battery voltage, the second battery voltage
And status information is respectively switched on-off in electric power DC system, and these data are sent to data collector, data collector
Also acquire the first DC bus-bar voltage, the second DC bus-bar voltage.Data collector forwards the data to monitor terminal.
Monitor terminal changes according to the first DC bus-bar voltage, the second DC bus-bar voltage changes, the first battery voltage
Variation, respectively switches on-off state change and judges whether electric power DC system occurs maloperation the variation of the second battery voltage, when
Alert when maloperation occurs for judgement, ensures electric power DC system safe and stable operation.
Preferably, a kind of electric power DC system anti-misoperation apparatus further includes being for monitoring the first DC bus
No the first insulating monitor that DC earthing occurs and for monitor whether the second DC bus occurs the second exhausted of DC earthing
Edge monitor, the monitor terminal are electrically connected with the first insulating monitor, the second insulating monitor respectively.When the first DC bus
When DC earthing or the second DC bus generation DC earthing occurs, monitor terminal alert.
Preferably, the monitor terminal include processor, display and operation keyboard, the processor respectively with display
Device and operation keyboard electrical connection.
Preferably, the monitor terminal further includes alarm, the alarm is electrically connected with processor.
Preferably, the data collector is 485 data collectors.Collector of switching value uses the conduct of RS-485 bus
Communication line.
The beneficial effects of the utility model are: passing through monitoring DC bus-bar voltage, battery voltage and each switch state letter
The variation of breath judges whether electric power DC system occurs maloperation, ensures electric power DC system safe and stable operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the circuit theory connection block diagram of monitor terminal.
In figure: 1, monitor terminal, 2, data collector, 3, collector of switching value, the 4, first busbar voltage monitoring modular, 5,
Second busbar voltage monitoring modular, the 6, first accumulator voltage monitoring module, the 7, second accumulator voltage monitoring module, 8, first
Insulating monitor, the 9, second insulating monitor, 10, processor, 11, display, 12, operation keyboard, 13, alarm.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment: a kind of electric power DC system anti-misoperation apparatus of the present embodiment, as shown in Figure 1, including monitor terminal
1, data collector 2, collector of switching value 3, the first busbar voltage monitoring modular 4 for monitoring the first DC bus-bar voltage,
For monitor the second DC bus-bar voltage the second busbar voltage monitoring modular 5, first for monitoring the first battery voltage
Accumulator voltage monitoring module 6, the second accumulator voltage monitoring module 7 for monitoring the second battery voltage, for monitoring
Whether the first DC bus occurs the first insulating monitor 8 of DC earthing, for monitoring whether the second DC bus occurs directly
Flow ground connection the second insulating monitor 9, collector of switching value 3 respectively with the first accumulator voltage monitoring module 6, the second battery
Respectively switch electrical connection, data collector 2 monitor mould with the first busbar voltage respectively in voltage monitoring module 7, electric power DC system
Block 4, the second busbar voltage monitoring modular 5 and collector of switching value 3 are electrically connected, monitor terminal 1 respectively with data collector 2, the
One insulating monitor 8, the electrical connection of the second insulating monitor 9.
In the present solution, first the first DC bus-bar voltage of busbar voltage monitoring module monitors, the monitoring of the second busbar voltage
The second DC bus-bar voltage of module monitors, first the first battery voltage of accumulator voltage monitoring module monitors, the second battery
Voltage monitoring module monitors the second battery voltage, and collector of switching value acquires the first battery voltage, the second battery voltage
And status information is respectively switched on-off in electric power DC system, and these data are sent to data collector, data collector
Also acquire the first DC bus-bar voltage, the second DC bus-bar voltage.Data collector forwards the data to monitor terminal.Monitoring is eventually
The data that end also receives the first insulating monitor, the second insulating monitor is sent.
Monitor terminal changes according to the first DC bus-bar voltage, the second DC bus-bar voltage changes, the first battery voltage
Variation, respectively switches on-off state change and judges whether electric power DC system occurs maloperation the variation of the second battery voltage, when
Alert when maloperation occurs for judgement, ensures electric power DC system safe and stable operation.
When DC earthing occurs for the first DC bus or DC earthing occurs for the second DC bus, monitor terminal issues report
Alert information.
Such as: the anti-mis-logical in DC bus operation mainly includes 4 points:
1, direct current system double-bus is powered, and when that need stop power supply all the way, grid switching operation must assure that direct current system is all
The safe and reliable electricity consumption of load, thus load adjustment is first carried out, by another way power supply power supply.Power switching operations require to be first
Post-tensioning is closed, i.e., only after bus is in parallel, can just pull open the out-put supply switch of maintenance bus.
2, in bus cyclization, it need to check that two sections of bus pressure differences should be less than certain numerical value, prevent dash current, damage
Bus and load.By monitor terminal to double sections of busbar voltages, pressure difference analysis.Monitor terminal passes through double section busbar voltage deviations pair
The female and information of direct current system is passed to operator.
3, double sections of direct current systems need to stop one section of direct current system.When maintenance, by one section of the Power supply belt of two sections of direct currents and two
The load operation of section advises inspection.The voltage value of double sections of buses carries out sampling and send monitor terminal, analyzes double sections of DC voltages.Such as
When voltage deviation is less than standard value, monitor terminal can prompt " double sections of mother voltages are without exception " such as voltage deviation to be greater than standard value
When, monitor terminal can prompt " double sections of mother electric voltage exceptions ".
4, two sets of insulating monitors can be made to run same section of mother after two sets of insulation monitoring devices and two sets of charging unit cyclizations
On line, two sets of insulating monitors will appear measuring bridge mutually relevant sorrow, can make insulating monitor that insulation occur and accidentally alert, by straight
After anti-misoperation apparatus, monitor terminal is devoted oneself to work to two sets of insulating monitor electric bridges and is monitored in turn, insulate if any one
Monitor finds bus and simultaneously boot leg lookup after DC earthing occurs, and does not find branch, host and monitoring end message such as
Interaction, and start another insulating monitor monitoring bus and branch operation.
In addition, being required according to operating standard, in DC bus operation, battery must be put into as its backup power source,
Current battery group equal no alarm signal when being spaced apart with fuse leakage throwing.Electric power DC system anti-misoperation apparatus monitoring the
One DC bus-bar voltage, the second DC bus-bar voltage, the first battery voltage, the second battery voltage, when the first DC bus
Voltage and the first battery voltage difference issue the leakage of the first battery and throw alarm when being greater than 5V, when the second DC bus-bar voltage and the
Two battery voltage differences issue the leakage of the second battery and throw alarm when being greater than 5V.
As shown in Fig. 2, monitor terminal 1 includes processor 10, display 11, operation keyboard 12 and alarm 13, processor
10 are electrically connected with display 11, operation keyboard 12 and alarm 13 respectively.
Data collector 2 is 485 data collectors.Collector of switching value 3 is using RS-485 bus as communication line.
Claims (5)
1. a kind of electric power DC system anti-misoperation apparatus, which is characterized in that including monitor terminal (1), data collector (2),
Collector of switching value (3), the first busbar voltage monitoring modular (4) for monitoring the first DC bus-bar voltage, for monitoring the
Second busbar voltage monitoring modular (5) of two DC bus-bar voltages, the first battery electricity for monitoring the first battery voltage
Monitoring modular (6), the second accumulator voltage monitoring module (7) for monitoring the second battery voltage are pressed, the switching value is adopted
Storage (3) respectively with the first accumulator voltage monitoring module (6), the second accumulator voltage monitoring module (7), electric power DC system
Interior each switch electrical connection, the data collector (2) are supervised with the first busbar voltage monitoring modular (4), the second busbar voltage respectively
Module (5) and collector of switching value (3) electrical connection are surveyed, the data collector (2) is also electrically connected with monitor terminal (1).
2. a kind of electric power DC system anti-misoperation apparatus according to claim 1, which is characterized in that further include for supervising
Survey whether the first DC bus occurs the first insulating monitor (8) of DC earthing and for monitoring whether the second DC bus is sent out
The second insulating monitor (9) of raw DC earthing, the monitor terminal (1) are insulated with the first insulating monitor (8), second respectively
Monitor (9) electrical connection.
3. a kind of electric power DC system anti-misoperation apparatus according to claim 1, which is characterized in that the monitor terminal
(1) include processor (10), display (11) and operation keyboard (12), the processor (10) respectively with display (11) and behaviour
Make keyboard (12) electrical connection.
4. a kind of electric power DC system anti-misoperation apparatus according to claim 3, which is characterized in that the monitor terminal
It (1) further include alarm (13), the alarm (13) is electrically connected with processor (10).
5. a kind of electric power DC system anti-misoperation apparatus according to claim 1 or 2 or 3 or 4, which is characterized in that institute
Stating data collector (2) is 485 data collectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965242.4U CN209513932U (en) | 2018-11-27 | 2018-11-27 | A kind of electric power DC system anti-misoperation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821965242.4U CN209513932U (en) | 2018-11-27 | 2018-11-27 | A kind of electric power DC system anti-misoperation apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN209513932U true CN209513932U (en) | 2019-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821965242.4U Active CN209513932U (en) | 2018-11-27 | 2018-11-27 | A kind of electric power DC system anti-misoperation apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394283A (en) * | 2020-12-09 | 2021-02-23 | 广东电网有限责任公司 | Detection apparatus for direct current female gang switch closing state and electric power system |
-
2018
- 2018-11-27 CN CN201821965242.4U patent/CN209513932U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394283A (en) * | 2020-12-09 | 2021-02-23 | 广东电网有限责任公司 | Detection apparatus for direct current female gang switch closing state and electric power system |
| CN112394283B (en) * | 2020-12-09 | 2022-07-29 | 广东电网有限责任公司 | Detection apparatus for direct current female gang switch closing state and electric power system |
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