CN110333418A - A kind of battery group disengaging bus online test method - Google Patents
A kind of battery group disengaging bus online test method Download PDFInfo
- Publication number
- CN110333418A CN110333418A CN201910182128.7A CN201910182128A CN110333418A CN 110333418 A CN110333418 A CN 110333418A CN 201910182128 A CN201910182128 A CN 201910182128A CN 110333418 A CN110333418 A CN 110333418A
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- Prior art keywords
- bus
- battery
- battery group
- detached
- voltage
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Classifications
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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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
- G01R31/3842—Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
-
- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Abstract
The present invention relates to a kind of battery groups to be detached from bus online test method, belongs to ice storing time technical field.The present invention includes the following steps: S1) it detects and records operating parameter, real-time sampling simultaneously compares DC bus-bar voltage and accumulator battery voltage；S2 it) detects and records operating parameter, in normal floating charging operation, utilize the floating current of high precision electro flow table real-time online detection battery group；S3) comprehensive descision battery outlet port fuse and switch state, to guarantee whenever battery group powers without departure from DC bus and to it；S4 operating parameter) is detected.Pass through real-time sampling is added and compare DC bus-bar voltage and accumulator battery voltage and monitoring battery is floating rush electric current by way of, so that the resulting battery of the technical solution is detached from bus operating condition and adapt to all operating conditions.So that monitoring means is more comprehensively effective, avoids the occurrence of to fail to judge and the accident of DC bus power loss is caused to occur.
Description
Technical field
The present invention relates to a kind of battery groups to be detached from bus online test method, belongs to ice storing time technical field.
Background technique
Battery group disengaging bus is primarily referred to as battery outlet port fuse failure or fuse is not closed and made by artificial origin
At battery group be detached from DC bus the case where, fuse opens a way or does not put into that directly result in battery female without normal direction direct current
Line power supply will cause DC bus decompression once AC system decompression in standing at this time, charger can not work, to make entire
Plant stand loses DC power supply, directly results in relay fail in station, in turn results in the consequence of fault spread.
In view of this, being disclosed in the patent document application No. is 201711342868.X and positive direct-current bus and negative straight
The PLC for flowing bus connection detects main website；The battery group being connected between positive direct-current bus and negative DC bus；Any battery
PLC detection slave station is connected between positive terminal and negative terminal；Each detection slave station is also used in the meter reading request for receiving detection main website
Afterwards, the detection data of depended on battery is sent to detection main website by the short circuit paths between positive terminal and negative terminal, and
After data interaction or when detection data is not detected main website request, the short-circuit road between positive terminal and negative terminal is cut off
Electrical communication path between positive terminal and negative terminal is reverted to the path for flowing through electrolyte by diameter.
Existing detection mode is alarmed mainly by battery outlet port fuse auxiliary contact, but auxiliary contact may be due to oxidation
Poor contact or it is stuck can not act, fuse melting without alarm, and the auxiliary contact can not monitor fuse put into situation, if
Artificial origin do not put into then without any monitoring means it can be found that.
Therefore it must accurately and reliably be monitored on-line to whether battery group correctly accesses DC bus, make up existing prison
Blank existing for survey mode.
Summary of the invention
It is an object of the invention to overcome the above deficiencies in the existing technologies, and provide a kind of reasonable in design
Battery group is detached from bus online test method.
Technical solution used by the present invention solves the above problems is: the battery group is detached from bus online test method,
It is characterized in that: include the following steps:
S1 it) detects and records operating parameter, real-time sampling simultaneously compares DC bus-bar voltage and accumulator battery voltage；
S2 it) detects and records operating parameter, in normal floating charging operation, detect battery using high precision electro flow table real-time online
The floating current of group；
S3) comprehensive descision battery outlet port fuse and switch state, to guarantee battery group whenever without departure from direct current
Bus is simultaneously powered to it；
S4 operating parameter) is detected.
Further, the S1) in, it sees whether consistent therebetween.
Further, the S2) in, charger output voltage is turned down in conjunction with periodically automatic communication, bears battery group
Load current sees that electric current whether there is without stream situation.
Further, the S3) in, comparison and floating current using DC bus-bar voltage and accumulator battery voltage
Detection combines the bus breaker and outlet fuse auxiliary contact of battery, comes comprehensive descision battery outlet port fuse and switch
State, to guarantee battery group whenever without departure from DC bus and to its reliable power supply.
Further, the S4) in, if it is not corresponding to occur busbar voltage and accumulator battery voltage amplitude, floats and rush electric current and be
0, and the case where breaker or outlet fuse state disconnection, direct current measure and control device answers immediate response to alarm, if operation is not
It is abnormal, repeats S3) to S4).
Further,
The S1) in, it is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time；
The S2) in, it is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time；
The S3) in, if there is a situation where battery groups to be detached from DC bus operation for direct current system, the time for issuing alarm is
0S；
The S4) in, the cooling tower parameter of processing is S1), S2) and the S3) comprehensive descision of resulting value.
Further, the operating parameter includes the busbar voltage of battery group, accumulator battery voltage, floating current, breaks
The state of road device and outlet fuse.
Further, the S4) in, the judgment step that battery group is detached from DC bus monitoring includes:
S41) busbar voltage of battery group and accumulator battery voltage are inconsistent；
∣Um-Ux∣>0
Um: the busbar voltage of battery group, unit V
Ux: accumulator battery voltage, unit V
S42 the floating electric current that rushes when) battery group operates normally is 0；
IF: it is floating to rush electric current, unit A
S43) breaker of battery group and outlet fuse state are shown as opening a way；
S44) comprehensive descision S41)-S43) state, if there is condition triggering, sending alarm immediately.
Compared with prior art, the invention has the following advantages that by be added real-time sampling and compare DC bus-bar voltage and
Accumulator battery voltage and the floating mode for rushing electric current of monitoring battery, make the resulting battery of the technical solution be detached from bus operation
Situation adapts to all operating conditions.So that monitoring means is more comprehensively effective, avoids the occurrence of to fail to judge and DC bus is caused to lose
The accident of electricity occurs.
Detailed description of the invention
Fig. 1 is that the battery group of the embodiment of the present invention is detached from the schematic diagram of bus online test method.
Fig. 2 is that the battery group of the embodiment of the present invention is detached from the logic chart of bus online test method.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is to this hair
Bright explanation and the invention is not limited to following embodiments.
Embodiment.
Referring to shown in Fig. 1 to Fig. 2, it should however be clear that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc. are only used
To cooperate the revealed content of specification, so that those skilled in the art understands and reads, being not intended to limit the invention can
The qualifications of implementation, therefore do not have technical essential meaning, the tune of the modification of any structure, the change of proportionate relationship or size
It is whole, in the case where not influencing the effect of present invention can be generated and the purpose that can reach, it should all still fall in disclosed skill
In the range of art content can cover.Meanwhile if in this specification with reference as "upper", "lower", "left", "right", " centre " and
The term of " one " etc. is merely convenient to being illustrated for narration, rather than to limit the scope of the invention, relativeness
It is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the present invention.
Battery group in the present embodiment is detached from bus online test method, includes the following steps:
S1 it) detects and records operating parameter, real-time sampling simultaneously compares DC bus-bar voltage and accumulator battery voltage；It sees therebetween
It is whether consistent；It is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time.
S2 it) detects and records operating parameter, in normal floating charging operation, detected and stored using high precision electro flow table real-time online
The floating current of battery pack；Charger output voltage is turned down in conjunction with periodically automatic communication, so that battery group is born load current, sees
Electric current whether there is without stream situation；It is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time.
S3) battery is combined using the comparison of DC bus-bar voltage and accumulator battery voltage and floating current detection
Bus breaker and outlet fuse auxiliary contact, comprehensive descision battery outlet port fuse and switch state, to guarantee electric power storage
Whenever pond group powers without departure from DC bus and to it；If battery group, which occurs, for direct current system is detached from DC bus operation
The case where, the time for issuing alarm is 0S.
S4 operating parameter) is detected；If busbar voltage occurs and accumulator battery voltage amplitude is not corresponding, the floating electric current that rushes is 0, and
And the case where breaker or outlet fuse state disconnection, direct current measure and control device answers immediate response to alarm, if operation does not occur
Abnormal, repeat S3) to S4)；The cooling tower parameter of processing is S1), S2) and the S3) comprehensive descision of resulting value.
Operating parameter in the present embodiment includes the busbar voltage of battery group, accumulator battery voltage, floating current, open circuit
The state of device and outlet fuse.
S4 in the present embodiment) in, the judgment step that battery group is detached from DC bus monitoring includes:
S41) busbar voltage of battery group and accumulator battery voltage are inconsistent；
∣Um-Ux∣>0
Um: the busbar voltage of battery group, unit V
Ux: accumulator battery voltage, unit V
S42 the floating electric current that rushes when) battery group operates normally is 0；
IF: it is floating to rush electric current, unit A
S43) breaker of battery group and outlet fuse state are shown as opening a way；
S44) comprehensive descision S41)-S43) state, if there is condition triggering, sending alarm immediately.
DC charging motor is connect respectively on direct current I, section bus, and has switching switch, can be charged to battery also straight
It connects and charges to DC bus.Direct current I, section bus are cut-off by two segmentation interconnection switches, are connected to conjunction on every section of DC bus respectively
Between, protection, control, the loads such as automatic device.Power switch on two sections of DC bus can cyclization or segmentation fortune in terminal box
Row.Direct-flow storage battery floating charge electricity operation when normal operation, when two DC charging motors are stopped transport for some reason, battery can be to direct current mother
Line electric discharge, to keep direct current system normal operation.
(1) plant stand DC power system is investigated and data collection, and formulates feasibility embodiment.
(2) remote monitoring terminal, the data center of DC power supply remote online diagnostic monitoring unified platform are developed
Server, local-monitoring device, component part are combined into a holonomic system, carry out laboratory preliminary test, carry out to result
It analyzes and is improved.
(3) one private server is installed in communication machine room, server software is installed, assemble local monitor in plant stand terminal
Device, battery balanced acquisition module, battery open circuit intelligently bridging module, intelligent accummulator discharge load and capacity estimate unit,
Charger communication module, charger Characteristics Detection module, feeder switch amount acquisition module and public measure and control device acquisition module etc.,
It constitutes a set of DC power supply remote diagnosis monitoring integration platform and is tested, if test case is good, reach design object,
Into trial operation.
(4) hanging net operation half a year, if system can operate normally, indices are good, formally put into operation, and write arrangement phase
Technical documentation is closed, finished item is checked and accepted.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to structure of the invention example explanation described in this specification.It is all according to
According to equivalence changes or simple change that the invention patent design structure, feature and principle is done, it is included in this hair
In the protection scope of bright patent.Those skilled in the art can do described specific embodiment various
The mode that the modify or supplement or adopt of various kinds is similar substitutes, and without departing from structure of the invention or surmounts present claims
Range defined in book, is within the scope of protection of the invention.
Claims (8)
1. a kind of battery group is detached from bus online test method, characterized by the following steps:
S1 it) detects and records operating parameter, real-time sampling simultaneously compares DC bus-bar voltage and accumulator battery voltage；
S2 it) detects and records operating parameter, in normal floating charging operation, detect battery using high precision electro flow table real-time online
The floating current of group；
S3) comprehensive descision battery outlet port fuse and switch state, to guarantee battery group whenever without departure from direct current
Bus is simultaneously powered to it；
S4 operating parameter) is detected.
2. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the S1) in, it sees
Therebetween whether consistent.
3. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the S2) in, knot
It closes periodically automatic communication and turns down charger output voltage, battery group is made to bear load current, see that electric current whether there is without stream feelings
Condition.
4. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the S3) in, benefit
The bus breaker of battery is combined with the comparison of DC bus-bar voltage and accumulator battery voltage and floating current detection and is gone out
Mouth fuse auxiliary contact, come comprehensive descision battery outlet port fuse and switch state, to whenever guarantee battery group
Without departure from DC bus and to its reliable power supply.
5. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the S4) in, if
Busbar voltage occurs and accumulator battery voltage amplitude is not corresponding, the floating electric current that rushes is 0, and breaker or outlet fuse state
The case where disconnection, direct current measure and control device answer immediate response to alarm, if operation no exceptions, repeats S3) to S4).
6. battery group according to claim 1 is detached from bus online test method, it is characterised in that:
The S1) in, it is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time；
The S2) in, it is divided into 1S between each detection time, detection gained cooling tower parameter is at least two groups every time；
The S3) in, if there is a situation where battery groups to be detached from DC bus operation for direct current system, the time for issuing alarm is
0S；
The S4) in, the cooling tower parameter of processing is S1), S2) and the S3) comprehensive descision of resulting value.
7. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the operating parameter
The state of busbar voltage, accumulator battery voltage, floating current, breaker and outlet fuse including battery group.
8. battery group according to claim 1 is detached from bus online test method, it is characterised in that: the S4) in, it stores
Battery pack is detached from the judgment step that DC bus monitors
S41) busbar voltage of battery group and accumulator battery voltage are inconsistent；
∣Um-Ux∣>0
Um: the busbar voltage of battery group
Ux: accumulator battery voltage
S42 the floating electric current that rushes when) battery group operates normally is 0；
IF: it is floating to rush electric current
S43) breaker of battery group and outlet fuse state are shown as opening a way；
S44) comprehensive descision S41)-S43) state, if there is condition triggering, sending alarm immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910182128.7A CN110333418A (en) | 2019-03-11 | 2019-03-11 | A kind of battery group disengaging bus online test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910182128.7A CN110333418A (en) | 2019-03-11 | 2019-03-11 | A kind of battery group disengaging bus online test method |
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| CN110333418A true CN110333418A (en) | 2019-10-15 |
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| CN201910182128.7A Pending CN110333418A (en) | 2019-03-11 | 2019-03-11 | A kind of battery group disengaging bus online test method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110794342A (en) * | 2019-11-26 | 2020-02-14 | 广东电网有限责任公司东莞供电局 | Monitoring system for separating DC storage battery from bus for station and control method thereof |
| CN111060827A (en) * | 2019-12-10 | 2020-04-24 | 广西电网有限责任公司防城港供电局 | Storage battery separation bus monitoring system of station direct current system and control method thereof |
| CN111948548A (en) * | 2020-06-23 | 2020-11-17 | 广东电网有限责任公司 | System for detecting storage battery pack without power interruption |
| CN113325321A (en) * | 2021-07-02 | 2021-08-31 | 阳光电源股份有限公司 | Energy storage system floating charge state battery power failure detection method and energy storage system |
| CN113325321B (en) * | 2021-07-02 | 2024-05-14 | 阳光电源股份有限公司 | Energy storage system floating state battery power failure detection method and energy storage system |
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| CN110794342B (en) * | 2019-11-26 | 2021-08-31 | 广东电网有限责任公司东莞供电局 | Monitoring system for separating DC storage battery from bus for station and control method thereof |
| CN111060827A (en) * | 2019-12-10 | 2020-04-24 | 广西电网有限责任公司防城港供电局 | Storage battery separation bus monitoring system of station direct current system and control method thereof |
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| CN113325321B (en) * | 2021-07-02 | 2024-05-14 | 阳光电源股份有限公司 | Energy storage system floating state battery power failure detection method and energy storage system |
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Application publication date: 20191015 |
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