CN110380506A - A kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment - Google Patents
A kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment Download PDFInfo
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- CN110380506A CN110380506A CN201910667746.0A CN201910667746A CN110380506A CN 110380506 A CN110380506 A CN 110380506A CN 201910667746 A CN201910667746 A CN 201910667746A CN 110380506 A CN110380506 A CN 110380506A
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- 238000012544 monitoring process Methods 0.000 description 7
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- 238000004891 communication Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
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- 230000001131 transforming effect Effects 0.000 description 5
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- 230000005611 electricity Effects 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
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- 238000004364 calculation method Methods 0.000 description 2
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- 238000013461 design Methods 0.000 description 2
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- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010066114 cabin-2 Proteins 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- 230000007613 environmental effect Effects 0.000 description 1
- 235000021384 green leafy vegetables Nutrition 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses a kind of distributed multiple-connected battery systems for prefabricated cabin formula unit equipment, including the first parallel connection direct power subsystem being independently arranged in 220kV prefabricated cabin, the second parallel connection direct power subsystem being independently arranged in 110kV prefabricated cabin, and it is independently arranged at the indoor third parallel connection direct power subsystem of secondary device；Wherein, first parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, secondary device and the power supply of 220kV circuit breaker operation mechanism impact load respectively in 220kV Intelligent control cabinet, setting contact disconnecting link between two sets of parallel connection type DC power systems, and all loads of bus consider every set DC power system in two stages；The present invention opens a completely new direct current system, can realize hold in line core to battery automatically and safeguard, realize lifecycle management.
Description
Technical field
The invention belongs to transforming plant DC power system design technical fields, are used for prefabricated cabin formula group more particularly, to one kind
Close the distributed multiple-connected battery system of equipment.
Background technique
DC power system reliability of operation is directly related to the safe and reliable operation of substation.Transforming plant DC power supply
System is that relay protection, control system, signal system, automatic device, UPS and the emergency lighting etc. of substation provide power supply.Become
Battery group in electric station DC system is that the last line of defense of power supply guarantee is provided for secondary device, importance do not say and
Analogy.Just because of battery group is the last line of defense of DC power supply power supply, therefore the quality of battery group capability and performance is one
Determine the quality that decide the operation of transforming plant DC electric power network in degree.With the intelligentized propulsion of national grid, by energetically
Development of Novel is energy-efficient, advanced environmental protection, the technology and equipment of resource circulation utilization, improves electric power network technique equipment, also promotees
Into the development of power system transformer substation DC power system.
Existing station is given with direct current system using the concatenated mode of battery DC bus powered at present, and series system, which exists, to be stored
The single failure of battery influences whole group output, and battery section damage causes whole group to be scrapped, cannot hold in line core there are battery etc.
Defect.Therefore, it is necessary to study a kind of new DC power system.
The patent application of Publication No. CN108878759A discloses a kind of layout knot suitable for storage batteries of transformer substation group
Structure and connector, the battery component are two row array arrangements；Battery in every a line is connected in series, and in the first row
The last one battery be connected in series with battery corresponding in the second row；By without a head between the battery and battery
Screw, 90 ° of copper lugs of single threaded screw, annealed copper wire and outer-hexagonal internal threaded nut are connected in series；The grub screw is two,
One of grub screw is connected between battery and the lower end of outer-hexagonal internal threaded nut, another grub screw is connected to
Between the threaded hole of 90 ° of copper lugs of the upper end and single threaded screw of outer-hexagonal internal threaded nut；The annealed copper wire is connected to single head
90 ° of copper lug ends of screw.The invention provides a kind of layout structures and connector suitable for storage batteries of transformer substation group, more
It is fairly simple to change single-unit battery.However, the battery group in the invention is using battery series system, series system exists
The single failure of battery influences whole group output, and battery section damage causes whole group to be scrapped, and there are batteries to hold in line core
The defects of.
Authorization Notice No. is that the utility model patent of CN203481883U discloses a kind of transforming plant DC power-supply system, is wrapped
Battery module group is included, the battery module group includes the battery module of multiple parallel connections, each battery module packet
Include AC/DC charging module, lithium iron phosphate storage battery group and DC/DC boost module；The transforming plant DC power-supply system further includes
Supply current adjusts module, charging and discharging currents adjustment module, protective device and battery management module；The supply current adjusts mould
Block, charging and discharging currents adjustment module, protective device, battery management module are electrically connected with the battery module group.The reality
With it is novel be able to solve battery whole group series connection, whole group power supply mode place an order an accumulator property backwardness, connecting line loosen, battery
The stream factor reliability that influences whole group battery, and cannot replace maintenance single battery online, battery redundant configuration without
The problem of Ji.However, the battery module of the utility model is still using battery series system.
Summary of the invention
It is set in view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide one kind for the combination of prefabricated cabin formula
Standby distributed multiple-connected battery system, opens a completely new direct current system, can realize and carry out online to battery automatically
Core holds maintenance, realizes lifecycle management.
In order to achieve the above objectives, the invention adopts the following technical scheme:
A kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment, including to be independently arranged at 220kV pre-
The first parallel connection direct power subsystem in cabin processed, the second parallel connection direct power supply subsystem being independently arranged in 110kV prefabricated cabin
System, and it is independently arranged at the indoor third parallel connection direct power subsystem of secondary device；
First parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, respectively in 220kV Intelligent control cabinet
Secondary device and 220kV circuit breaker operation mechanism impact load are powered, and contact is arranged between two sets of parallel connection type DC power systems
Disconnecting link, and all loads of bus consider every set DC power system in two stages；
Second parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, respectively in 110kV Intelligent control cabinet
Secondary device, 110kV circuit breaker operation mechanism impact load are powered, setting contact knife between two sets of parallel connection type DC power systems
Lock, and all loads of bus consider every set DC power system in two stages；
Third parallel connection direct power subsystem includes four sets of parallel connection type DC power supplies, wherein two sets of parallel connection type DC power supplies are
Station level equipment, main transformer bay device, the power supply of emergency lighting load in secondary device room, and other two sets of parallel connection type direct currents
Source is that whole station communicates load, the power supply of UPS load.
Further, the first parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, every set parallel connection type direct current
Power supply includes 10 intelligent battery components in parallel, matches 12V/150Ah battery, 10 parallel connections in every set parallel connection type DC power supply
Intelligent battery component is mounted in 2 batteries in parallel connection component cabinets, and 5 intelligence in parallel are equipped in each batteries in parallel connection component cabinet
Battery component.
Further, the second parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, every set parallel connection type direct current
Power supply includes 6 intelligent battery components in parallel, matches 12V/150Ah battery, and be mounted in 1 batteries in parallel connection component cabinet.
It further, is station level equipment, main transformer interval in secondary device room in third parallel connection direct power subsystem
Every set parallel connection type DC power supply that layer equipment, emergency lighting load are powered includes 21 intelligent battery components in parallel, matches 12V/
150Ah battery.
Further, in third parallel connection direct power subsystem, every set of load, the power supply of UPS load is communicated for whole station
Parallel connection type DC power supply includes 29 intelligent battery components in parallel, matches 12V/150Ah battery.
Further, in the first parallel connection direct power subsystem, every set parallel connection type DC power supply also includes 40 feeder lines
Switch block and 1 direct-current supervision device.
Further, in the second parallel connection direct power subsystem, every set parallel connection type DC power supply also includes 40 feeder lines
Switch block and 1 direct-current supervision device.
It further, is station level equipment, main transformer interval in secondary device room in third parallel connection direct power subsystem
Every set parallel connection type DC power supply that layer equipment, emergency lighting load are powered also includes 40 feeder switch components and 1 direct current prison
Control device.
Further, each intelligent battery component in parallel includes AC/DC circuit, the input terminal access of AC/DC circuit
AC220V alternating current, AC/DC circuit output end connect DC/DC output translator and DC/DC recharging converter, 12V battery
Positive and negative anodes pass through a protective resistance respectively and are connected in parallel with DC/DC recharging converter, the connection of DC/DC output translator output end
Impact accumulator is prevented, the output end output DC220V/110V direct current of impact accumulator, AC/DC circuit, DC/ are prevented
DC recharging converter, DC/DC output translator and prevent impact accumulator connect with CPU smart circuit signal be used for signal
Acquisition control.
The beneficial effects of the present invention are:
Existing station is given with direct current system using the concatenated mode of battery DC bus powered at present, and series system, which exists, to be stored
The single failure of battery influences whole group output, and battery section damage causes whole group to be scrapped, cannot hold in line core there are battery etc.
Defect.Moreover, whole string battery overall performance is limited by most weak one relative to 104 traditional single battery series models
Battery performance, and global reliability is the relationship of "AND", is connected more, reliability is poorer.The application of parallel power supply system is opened
A completely new direct current system is warded off, system can be realized hold in line core to battery automatically and be safeguarded, realize Life cycle pipe
Reason, will generate extraordinary using effect in practical applications.The service life of battery can greatly be extended and promote old storage
The utilization rate of battery, these can bring huge economic benefit to user, and battery greatly reduces and brings to environment
Pressure, be the more greens of earth environment band.And batteries in parallel connection system is the pass that global reliability is theoretically "or"
System, in parallel more, reliability is higher.Direct current system battery uses series system, is coherency-affected, new used batteries cannot mix
With one or several is damaged necessary whole group replacement.The every batteries of intelligent DC power-supply system in parallel are relatively independent, not only can be with needle
One or several defective batteries are replaced, and new used batteries may be implemented and use with, improves the utilization rate of battery.
Although can theoretically illustrate that the high reliablity of batteries in parallel connection system in traditional, becomes for prefabricated cabin formula
The characteristics of power station, simple batteries in parallel connection system can't meet how to be arranged between its demand, such as different prefabricated storehouses, with
And the problem for being this field currently without solution how is arranged all in single prefabricated cabin, inventor sends out by in-depth study
It is existing, it is grouped according to load character, configuration is different and is combined Smart battery module group, interferes between reduction load, improves DC power supply
Reliability.Switch operation power and protection supervisory equipment power supply are such as divided into different electrical power section, by different more Smart battery modules
Parallel redundancy mode is powered respectively, the influence run by the impact that switch operation generates to protection supervisory equipment is reduced, according to negative
Lotus is of different sizes, is arranged on the spot, can solve because of the various problems of the long bring of DC feeder route.
When substation, which needs to break through final scale, to be extended, Traditional DC system is unable to complete the expansion of itself capacity
It fills, can only all replace, this certainly will will cause increasing substantially for time between overhauls(TBO) and expense.And the parallel connection intelligence electricity in the present invention
Cell system can extend the needs of scale according to substation, increase corresponding modular assembly, and enlarging mode is flexible.Intelligence electricity in parallel
Pond direct current system can carry out accumulator cell charging and discharging management online, carry out full capacity to battery with can be convenient and hold in line core,
Charging module hot plug can replace battery online, greatly simplify the maintenance of direct current system, reduce system
Maintenance workload.And Traditional DC system does not have the ability of each battery of online management, does not have the energy replaced online
Power.The present invention is able to carry out battery and holds management in line core, realizes that the on-bne repair of battery, do not have a power failure replacement, greatly subtracts
The maintenance workload of run unit is lacked, reduction energy consumption, O&M cost, safety are higher.In addition, flexible configuration mode
Direct-current cabinet quantity can be reduced, secondary device room usable floor area is reduced.
The present invention is directed to current existing station direct current system and uses the concatenated mode of battery to DC bus powered, series connection
There are the single failures of battery to influence whole group output for mode, and battery section damage causes whole group to be scrapped, and there are batteries cannot
The defects of line core holds, a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment is provided, including independently set
The first parallel connection direct power subsystem in 220kV prefabricated cabin is set, second be independently arranged in 110kV prefabricated cabin is in parallel straight
Power subsystem is flowed, and is independently arranged at the indoor third parallel connection direct power subsystem of secondary device；Wherein, first is in parallel
DC power supply subsystem includes two sets of parallel connection type DC power supplies, and secondary device and 220kV are disconnected respectively in 220kV Intelligent control cabinet
Road device operating mechanism impact load is powered, setting contact disconnecting link between two sets of parallel connection type DC power systems, and every set direct current
All loads of bus consider source system in two stages；Second parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, point
It Wei not secondary device, the power supply of 110kV circuit breaker operation mechanism impact load, two sets of parallel connection type direct currents in 110kV Intelligent control cabinet
Setting contact disconnecting link between power-supply system, and all loads of bus consider every set DC power system in two stages；Third is in parallel straight
Flowing power subsystem includes four sets of parallel connection type DC power supplies, wherein two sets of parallel connection type DC power supplies are station level in secondary device room
Equipment, main transformer bay device, emergency lighting load power supply, and other two sets parallel connection type DC power supplies be whole station communication load,
The power supply of UPS load.Present invention eliminates the battery rooms that needs are separately provided to be eliminated different by the used in parallel of battery
Combo problem between battery reduces battery service workload, direct current system is made to have higher reliability, flexibility.
The present invention opens a completely new direct current system, can realize hold in line core to battery automatically and safeguard, realize full life
Cycle management.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention；
Fig. 2 is the layout drawing that the first parallel connection direct power subsystem accesses I sections of DC bus in the present invention；
Fig. 3 is the layout drawing that the first parallel connection direct power subsystem accesses II sections of DC bus in the present invention；
Fig. 4 is the layout drawing that the second parallel connection direct power subsystem accesses I sections of DC bus in the present invention；
Fig. 5 is the layout drawing that the second parallel connection direct power subsystem accesses II sections of DC bus in the present invention；
Fig. 6 is the layout drawing that third parallel connection direct power subsystem accesses I sections of DC bus in the present invention；
Fig. 7 is the layout drawing that third parallel connection direct power subsystem accesses II sections of DC bus in the present invention；
Fig. 8 is the structural block diagram of parallel connection intelligent battery component in the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Attached drawing, the technical solution of the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, ordinary skill
Personnel's every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment:
As shown in Figure 1, a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment, including be independently arranged
The first parallel connection direct power subsystem 1 in 220kV prefabricated cabin, second be independently arranged in 110kV prefabricated cabin are in parallel straight
Power subsystem 2 is flowed, and is independently arranged at the indoor third parallel connection direct power subsystem 3 of secondary device.
As shown in Figures 2 and 3, the first parallel connection direct power subsystem 1 includes two sets of parallel connection type DC power supplies, respectively
Secondary device and the power supply of 220kV circuit breaker operation mechanism impact load, two sets of parallel connection type DC power supplies in 220kV Intelligent control cabinet
Setting contact disconnecting link between system, and all loads of bus consider every set DC power system in two stages.
First parallel connection direct power subsystem 1 includes two sets of parallel connection type DC power supplies, and every set parallel connection type DC power supply includes
10 intelligent battery components in parallel, match 12V/150Ah battery, the intelligent battery in parallel of 10 in every set parallel connection type DC power supply
Component is mounted in 2 batteries in parallel connection component cabinets, and 5 intelligent battery groups in parallel are equipped in each batteries in parallel connection component cabinet
Part.
In the first parallel connection direct power subsystem 1, every set parallel connection type DC power supply also includes 40 feeder switch components
With 1 direct-current supervision device.
As shown in Figure 4 and Figure 5, the second parallel connection direct power subsystem 2 includes two sets of parallel connection type DC power supplies, respectively
Secondary device, the power supply of 110kV circuit breaker operation mechanism impact load, two sets of parallel connection type DC power supplies in 110kV Intelligent control cabinet
Setting contact disconnecting link between system, and all loads of bus consider every set DC power system in two stages.
Second parallel connection direct power subsystem 2 includes two sets of parallel connection type DC power supplies, and every set parallel connection type DC power supply includes 6
A parallel connection intelligent battery component, matches 12V/150Ah battery, and be mounted in 1 batteries in parallel connection component cabinet.
In the second parallel connection direct power subsystem 2, every set parallel connection type DC power supply also includes 40 feeder switch components
With 1 direct-current supervision device.
As shown in Figure 6 and Figure 7, third parallel connection direct power subsystem 3 includes four sets of parallel connection type DC power supplies, wherein two sets
Parallel connection type DC power supply is powered for station level equipment, main transformer bay device, emergency lighting load in secondary device room, and in addition
Two sets of parallel connection type DC power supplies are that whole station communicates load, the power supply of UPS load.
In third parallel connection direct power subsystem 3, be secondary device room in station level equipment, main transformer bay device,
Every set parallel connection type DC power supply of emergency lighting load power supply includes 21 intelligent battery components in parallel, matches 12V/150Ah electric power storage
Pond.
In third parallel connection direct power subsystem 3, it is straight that load, every set parallel connection type of UPS load power supply are communicated for whole station
Galvanic electricity source includes 29 intelligent battery components in parallel, matches 12V/150Ah battery.
In third parallel connection direct power subsystem 3, be secondary device room in station level equipment, main transformer bay device,
Every set parallel connection type DC power supply of emergency lighting load power supply also includes 40 feeder switch components and 1 direct-current supervision device.
As shown in figure 8, each parallel connection intelligent battery component includes AC/DC circuit 4, the input terminal access of AC/DC circuit 4
AC220V alternating current, 4 output end of AC/DC circuit connect DC/DC output translator 5 and DC/DC recharging converter 6,12V battery
7 positive and negative anodes pass through a protective resistance 8 and DC/DC recharging converter 6 respectively and are connected in parallel, and DC/DC output translator 5 exports
End connection prevents impact accumulator 9, prevents the output end output DC220V/110V direct current of impact accumulator 9, AC/DC
Circuit 4, DC/DC recharging converter 6, DC/DC output translator 5 and prevent impact accumulator 9 with CPU smart circuit 10 believe
Number connection be used for signal acquisition control.
When the first parallel connection direct power supply or the second parallel connection direct power subsystem or third parallel connection direct power subsystem
When needing to carry out battery core appearance, Systems Monitoring Unit of the invention one intelligence in parallel into the parallel connection direct power subsystem
Battery component issues core Rong Zhiling, and the smart circuit of the parallel connection intelligent battery component controls it and switchs to storage battery power supply state, and
Dynamic regulation realizes battery with 0.1C constant-current discharge.Tired note battery discharge capacity is until core appearance finishes simultaneously, and from turn
For Alternating Current Power Supply state, to charge the battery.Another intelligent battery component in parallel is automatically begun to after the battery charging complete
Core hold.
The first parallel connection direct power subsystem, the second parallel connection direct power subsystem and third are shown in detail separately below simultaneously
Join the configuration of DC power supply subsystem.
The configuration of (one) first parallel connection direct power subsystem calculates
The configuration of 220kV prefabricated cabin secondary device and load statistics, as shown in the table, unit is watt (W) in table:
Table 1:220kV protection, measure and control device load statistics
Other secondary device loads of table 2:220kV prefabricated cabin statistics
| Device name | Separate unit power consumption | Quantity | It is total |
| Electric energy meter | 2 | 6 | 12 |
| 220 time synchronizations | 50 | 1 | 50 |
| 220 failure wave-recordings | 100 | 2 | 200 |
| 220 station level interchangers | 30 | 4 | 120 |
| 220 process layer switch | 30 | 16 | 480 |
| It is total | 862 |
Table 3:220kV process layer secondary device load statistics
According to the arrangement in 220kV substation secondary device cabin and power load distributing feature, the load system of 220kV prefabricated cabin is carried out
Meter and battery capacity selection calculate, such as table 4:
1) the intelligent battery component count in parallel selection in every set parallel connection type DC power supply
According to " State Grid Corporation of China relies on engineering design new technology spread application achievements compilation (version in 2017) SXYM-
The calculation method of TBB2-04 determines lower 2 hours continuous discharge electric currents of direct current system accident, since power supply module has in short-term
Maximum Power Output function (exports 2 times of rated power) in 60s, can not consider impact load.Meet frequent when working normally
Property load, the needs for meeting accident loads and impact load under accident condition.Component count by N+1 principle (when N≤6) or
N+2 (when N >=7) redundant configuration.
According to " Desinging of direct current power system in electrical power engineering handbook " and the cabin 220kV load statistical form, the 2 hours long-term load electricity in the cabin
Stream is 13.35A.Single component Maximum Power Output is 500W, the considerations of for safe clearance, it is proposed that each component operation exists
Below 80% load.
It is calculated according to electric current, the intelligent battery component count N=13.35*220/ in parallel in every set parallel connection type DC power supply
(500*0.8)=7.34；
Intelligent battery component count in parallel selection 10 in every set parallel connection type DC power supply.
2) battery capacity selects
Due to the effect that component flows, each battery provides the load power of 1/N.
Single battery discharging electric current: Is=(Px ÷ N ÷ η) ÷ U；
Wherein: Px is DC load actual capacity；N is direct current system selecting module quantity,
η is the discharging efficiency of battery, value 0.85；U battery voltage rating, value 12V.
Accumulator capacity: Cc=Krel × (Is ÷ KC)；
Wherein: Krel is safety factor, takes 1.40；KC is capacity conversion coefficient, is seeked advice from producer (Shenzhen Thailand is high), and root
According to " Desinging of direct current power system in electrical power engineering handbook " (DL/T 5044-2014), lead-acid battery takes 0.429.
Single battery discharging electric current Is=(10 ÷ 0.85 of 13.35*220 ÷) ÷ 12=28.79A；
Accumulator capacity Cc=1.4* (28.79 ÷ 0.429)=93.95Ah；
Accumulator capacity selects 150Ah.
3) device configuration and arrangement
2 sets of parallel connection type DC power supplies are arranged in first parallel connection direct power subsystem, and concrete configuration is as follows:
I sections of batteries in parallel connection component cabinets of #1 (include 5 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #2 (include 5 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #3 (include 5 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #4 (include 5 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of feeder lines of #5 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
II sections of feeder lines of #6 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
Second parallel connection direct is respectively obtained using the above-mentioned method for obtaining the first parallel connection direct power subsystem concrete configuration
Power subsystem and third parallel connection direct power subsystem concrete configuration are as follows:
The configuration of (two) second parallel connection direct power subsystems calculates
The load of 110kV prefabricated cabin counts and battery capacity selection calculates, as a result as follows:
Table 5:110kV secondary device cabin load statistical form
1) the intelligent battery component count in parallel selection in every set parallel connection type DC power supply
Same calculation method, according to " Desinging of direct current power system in electrical power engineering handbook " and the cabin 110kV load statistical form, the cabin 2
Hour long-term load electric current is 8.01A.
It is calculated according to electric current, the intelligent battery component count N=8.01*220/ in parallel in every set parallel connection type DC power supply
400=4.4；
Intelligent battery component count in parallel selection 6 in every set parallel connection type DC power supply.
2) battery capacity selects
Single battery discharging electric current Is=(6 ÷ 0.85 of 8.01*220 ÷) ÷ 12=28.79A；
Accumulator capacity Cc=1.4* (28.79 ÷ 0.429)=93.95Ah；
Accumulator capacity selects 150Ah.
3) 1 set of parallel connection type DC power supply is arranged in the second parallel connection direct power subsystem, and concrete configuration is as follows:
I sections of batteries in parallel connection component cabinets of #1 (include 6 batteries in parallel connection components, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #2 (include 6 batteries in parallel connection components, match 12V/150Ah battery)；
I sections of feeder lines of #3 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
II sections of feeder lines of #4 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
(3) configuration of third parallel connection direct power subsystem calculates
In addition to UPS and communication load, the load statistics and battery capacity selection calculated result of secondary device room are as follows:
Table 6: secondary device room load statistical form
1) the intelligent battery component count in parallel selection in every set parallel connection type DC power supply
According to " Desinging of direct current power system in electrical power engineering handbook " and load statistical form, 2 hours long-term load electric currents are 33.24A.
It is calculated according to electric current, the intelligent battery component count N=33.24*220/ in parallel in every set parallel connection type DC power supply
400=18.28；
Intelligent battery component count in parallel selection 21 in every set parallel connection type DC power supply.
2) battery capacity selects
Single battery discharging electric current Is=(21 ÷ 0.85 of 33.24*220 ÷) ÷ 12=34.14A；
Accumulator capacity Cc=1.4* (34.14 ÷ 0.429)=111.41Ah；
Accumulator capacity selects 150Ah.
3) 2 sets of parallel connection type DC power supplies are arranged in secondary device room, and concrete configuration is as follows:
I sections of batteries in parallel connection component cabinets of #1 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #2 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #3 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #4 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #5 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #6 (include 7 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of DC feeders of #7 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
II sections of DC feeders of #8 and monitoring cabinet (including 40 feeder switch components, direct-current supervision device).
UPS and communication load statistics and battery capacity selection calculated result are as follows:
Table 7:UPS and communication load statistical form
1) the intelligent battery component count in parallel selection in every set parallel connection type DC power supply
According to " Desinging of direct current power system in electrical power engineering handbook " and load statistical form, 2 hours long-term load electric currents are 49.09A.
It is calculated according to electric current, the intelligent battery component count N=49.09*220/ in parallel in every set parallel connection type DC power supply
400=27；
Intelligent battery component count in parallel selection 29 in every set parallel connection type DC power supply.
2) battery capacity selects
Single battery discharging electric current Is=(29 ÷ 0.85 of 49.09*220 ÷) ÷ 12=36.51A；
Accumulator capacity Cc=1.4* (36.51 ÷ 0.429)=119.15Ah；
Accumulator capacity selects 150Ah.
3) 2 sets of parallel connection type DC power supplies are arranged in UPS and communications portion, and concrete configuration is as follows:
I sections of batteries in parallel connection component cabinets of #1 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #2 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #3 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
I sections of batteries in parallel connection component cabinets of #4 (include 5 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #5 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #6 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #7 (include 8 intelligent battery components in parallel, match 12V/150Ah battery)；
II sections of batteries in parallel connection component cabinets of #8 (include 5 intelligent battery components in parallel, match 12V/150Ah battery).
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (9)
1. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment, it is characterised in that: including being independently arranged
The first parallel connection direct power subsystem in 220kV prefabricated cabin, the second parallel connection direct being independently arranged in 110kV prefabricated cabin
Power subsystem, and it is independently arranged at the indoor third parallel connection direct power subsystem of secondary device；
The first parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies being connected in parallel, respectively 220kV
Secondary device and the power supply of 220kV circuit breaker operation mechanism impact load, two sets of parallel connection type DC power systems in Intelligent control cabinet
Between setting contact disconnecting link, and all loads of bus consider every set DC power system in two stages；
The second parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies being connected in parallel, respectively 110kV
Secondary device in Intelligent control cabinet, the power supply of 110kV circuit breaker operation mechanism impact load, two sets of parallel connection type DC power systems it
Between setting contact disconnecting link, and all loads of bus consider every set DC power system in two stages；
The third parallel connection direct power subsystem includes four sets of parallel connection type DC power supplies, wherein two sets of parallel connection type DC power supplies are simultaneously
Be linked togather as station level equipment in secondary device room, main transformer bay device, the power supply of emergency lighting load, and other two sets simultaneously
Connection type DC power supply, which is connected in parallel, communicates load, the power supply of UPS load for whole station.
2. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 1, special
Sign is: the first parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, and every set parallel connection type DC power supply includes 10
A parallel connection intelligent battery component, matches 12V/150Ah battery, the intelligent battery group in parallel of 10 in every set parallel connection type DC power supply
Part is mounted in 2 batteries in parallel connection component cabinets, and 5 intelligent battery components in parallel are equipped in each batteries in parallel connection component cabinet.
3. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 1, special
Sign is: the second parallel connection direct power subsystem includes two sets of parallel connection type DC power supplies, and every set parallel connection type DC power supply includes 6
Intelligent battery component in parallel is matched 12V/150Ah battery, and is mounted in 1 batteries in parallel connection component cabinet.
4. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 1, special
Sign is: being station level equipment, main transformer bay device, thing in secondary device room in third parallel connection direct power subsystem
Therefore every set parallel connection type DC power supply of lighting load power supply includes 21 intelligent battery components in parallel, matches 12V/150Ah battery.
5. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 1, special
Sign is: in third parallel connection direct power subsystem, every set parallel connection type direct current of load, the power supply of UPS load is communicated for whole station
Power supply includes 29 intelligent battery components in parallel, matches 12V/150Ah battery.
6. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 2, special
Sign is: in the first parallel connection direct power subsystem, every set parallel connection type DC power supply also includes 40 feeder switch components and 1
A direct-current supervision device.
7. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 3, special
Sign is: in the second parallel connection direct power subsystem, every set parallel connection type DC power supply also includes 40 feeder switch components and 1
A direct-current supervision device.
8. a kind of distributed multiple-connected battery system for prefabricated cabin formula unit equipment according to claim 4, special
Sign is: being station level equipment, main transformer bay device, thing in secondary device room in third parallel connection direct power subsystem
Therefore every set parallel connection type DC power supply of lighting load power supply also includes 40 feeder switch components and 1 direct-current supervision device.
9. a kind of distributed multiple-connected battery for prefabricated cabin formula unit equipment according to any one of claims 1 to 8
System, it is characterised in that: each parallel connection intelligent battery component includes AC/DC circuit, the input terminal access of AC/DC circuit
AC220V alternating current, AC/DC circuit output end connect DC/DC output translator and DC/DC recharging converter, 12V battery
Positive and negative anodes pass through a protective resistance respectively and are connected in parallel with DC/DC recharging converter, and DC/DC output translator output end connects
Take over control and only impact accumulator, prevent impact accumulator output end output DC220V/110V direct current, AC/DC circuit,
DC/DC recharging converter, DC/DC output translator and prevent impact accumulator from connecting and be used for CPU smart circuit signal
The acquisition control of signal.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787394A (en) * | 2020-11-28 | 2021-05-11 | 国网河南省电力公司经济技术研究院 | Transformer substation direct current bus type distributed parallel direct current power supply system with prefabricated cabin |
| CN113572183A (en) * | 2021-07-20 | 2021-10-29 | 许继电源有限公司 | Intelligent maintenance circuit and maintenance method for station storage battery |
| CN114006364A (en) * | 2021-10-18 | 2022-02-01 | 国网河南省电力公司经济技术研究院 | Feeder switch configuration method for direct current system of 220kV modular transformer substation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204089340U (en) * | 2014-09-18 | 2015-01-07 | 福建省电力勘测设计院 | For the transforming plant distributed integrated power source apparatus of prefabricated cabin formula unit equipment |
| CN106849298A (en) * | 2017-03-16 | 2017-06-13 | 福建省电力勘测设计院 | For the distributed alterating and direct current source module of transformer station's prefabricated cabin |
| CN206517121U (en) * | 2017-03-16 | 2017-09-22 | 福建省电力勘测设计院 | Distributed DC power module for transformer station's prefabricated cabin |
| CN107846075A (en) * | 2017-12-13 | 2018-03-27 | 国网上海市电力公司 | A kind of modularized distribution type batteries in parallel connection straight-flow system |
-
2019
- 2019-07-23 CN CN201910667746.0A patent/CN110380506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204089340U (en) * | 2014-09-18 | 2015-01-07 | 福建省电力勘测设计院 | For the transforming plant distributed integrated power source apparatus of prefabricated cabin formula unit equipment |
| CN106849298A (en) * | 2017-03-16 | 2017-06-13 | 福建省电力勘测设计院 | For the distributed alterating and direct current source module of transformer station's prefabricated cabin |
| CN206517121U (en) * | 2017-03-16 | 2017-09-22 | 福建省电力勘测设计院 | Distributed DC power module for transformer station's prefabricated cabin |
| CN107846075A (en) * | 2017-12-13 | 2018-03-27 | 国网上海市电力公司 | A kind of modularized distribution type batteries in parallel connection straight-flow system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112787394A (en) * | 2020-11-28 | 2021-05-11 | 国网河南省电力公司经济技术研究院 | Transformer substation direct current bus type distributed parallel direct current power supply system with prefabricated cabin |
| CN113572183A (en) * | 2021-07-20 | 2021-10-29 | 许继电源有限公司 | Intelligent maintenance circuit and maintenance method for station storage battery |
| CN114006364A (en) * | 2021-10-18 | 2022-02-01 | 国网河南省电力公司经济技术研究院 | Feeder switch configuration method for direct current system of 220kV modular transformer substation |
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