CN104505930B - Two groups of power supplys are simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power - Google Patents
Two groups of power supplys are simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power Download PDFInfo
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- CN104505930B CN104505930B CN201410846345.9A CN201410846345A CN104505930B CN 104505930 B CN104505930 B CN 104505930B CN 201410846345 A CN201410846345 A CN 201410846345A CN 104505930 B CN104505930 B CN 104505930B
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Abstract
The invention discloses a kind of two small power supply simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power, the present invention is used as the public standby Rectification Power Factor of two groups of power supply power-feed sections using a standby Rectification Power Factor；When the Rectification Power Factor platform maintenance of one of which power supply power-feed section institute band, public standby Rectification Power Factor just accesses this group of power supply power-feed section, it is ensured that the need for electricity of electrolytic cell.The present invention realizes two small power supplies while the purpose powered to one big Electrolytic Aluminum Series, technical scheme without increasing Rectification Power Factor in addition, and can play a part of two power supply power-feed sections again has standby Rectification Power Factor.Therefore, considerable equipment investment has been saved, without increase floor space.Reversed process of the present invention is easy to operate without particular arrangement, disclosure satisfy that the power reguirements of Large Electrolytic Aluminium series, safe and reliable in use.
Description
Technical field
The present invention relates to a kind of two groups of power supplys simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power, category
In electrolytic aluminium factory Large Electrolytic Aluminium series power technical field.
Background technology
It is by many Rectification Power Factor parallel operations in the direct current electricity consumption of electrolytic aluminium factory Electrolytic Aluminum Series.Rectification Power Factor is general
Configured using N+1 modes, N+1 platform machine set technology parameters are completely the same, any unit can be used as standby unit；When wherein
When one unit needs maintenance, remaining Rectification Power Factor also 100% can meet electrolytic series need for electricity, whole Rectification Power Factors by
One group of power supply is powered, and one group of power supply includes two power supplys of the using and the reserved, and main electrical scheme is the double-bus form with mother.But with aluminium
Electrolytic series electric current is increasing, and some electrolytic series production capacities have been even up to more than 200kt/a, more than burden with power 320MW,
Power supply voltage is in more than 110kV., can be by two when electric power needed for a power supply capacity is less than a Large Electrolytic Aluminium series
Group power supply is powered simultaneously, and every group of power supply includes two power supplys of the using and the reserved, and main electrical scheme is two structures of the double-bus with mother, bag
Include four sections of ac bus.Every group of power supply is respectively that partial rectification unit is powered.Now, no matter a standby Rectification Power Factor is by that
Group power supply is powered, and another group of power supply institute band Rectification Power Factor will be without standby Rectification Power Factor, if having one without standby Rectification Power Factor side
When platform Rectification Power Factor needs maintenance, the side power supply capacity will be reduced, and the power supply for having standby Rectification Power Factor side is insufficient to greatly
When, it is impossible to meet electrolytic aluminium direct current need for electricity.If each power supply power-feed section configures a standby Rectification Power Factor, need
Increase the switch and protection equipment, voltage regulating rectifier transformer, two rectifier cabinets, an a set of pure water coolings of a supply cell
Device, four D.C. high-current switches, two direct-current measuring devices, two reverse current protection devices, a set of branch's dc bus, and need
The equipment of 90 × 16 square metres of increase installs land used, and investment will increase by more than 30,000,000 yuan.
The content of the invention
It is an object of the present invention to provide a kind of two groups of power supplys simultaneously to Large Electrolytic Aluminium series power method and
Wiring construction, is increased without standby Rectification Power Factor, and can play a part of two groups of power supply power-feed sections again has standby unit, is ensuring
Cost of investment is reduced in the case of power supply safety is reliable, so as to overcome the deficiencies in the prior art.
The technical proposal of the invention is realized in this way：
A kind of two groups of power supplys of the present invention are simultaneously that this method uses one to the method for a Large Electrolytic Aluminium series power
The standby Rectification Power Factor of platform, is used as the public standby Rectification Power Factor of two groups of power supply power-feed sections；When one of which power supply power-feed section institute band
The maintenance of a Rectification Power Factor when, public standby Rectification Power Factor just accesses this group of power supply power-feed section, it is ensured that the electricity consumption of electrolytic cell is needed
Ask.
In preceding method, one section of double cross stream of increase is female between two sections of double ac bus of two groups of power supply power-feed sections
Line, the double ac bus of the section are connected with public standby Rectification Power Factor；Increased one section double ac bus are switched by four switchings
Double ac bus with two groups of power supply power-feed sections are connected respectively；When a motor-generator set of any one section of institute's band of two groups of power supply power-feed sections
During group platform maintenance, public standby Rectification Power Factor is accessed by the section by reversal switch, the connection with another section of bus is simultaneously switched off.
It is described that public standby Rectification Power Factor is accessed by the section by breaker or disconnecting switch in preceding method, break simultaneously
The connection with another section of bus is opened, its handover operation process is：Public standby Rectification Power Factor has a power failure, and then first disconnects and being currently running
Block switch put into the block switch that will be run again, public standby Rectification Power Factor is under unloaded condition from the power-feed section of side
The power-feed section of opposite side is switched to, transmission operation again after the completion of switching.
A kind of two groups of power supplys of the invention constituted according to the above method are simultaneously to Large Electrolytic Aluminium series power
Wiring construction is that the wiring construction includes a-power supply group and B-source group；A-power supply group is connected with A sections of ac bus, and A sections of exchanges are female
Line is connected with A Rectification Power Factor ac input ends, A Rectification Power Factors positive pole output be connected with positive bus-bar, A Rectification Power Factors negative pole export and
Negative busbar is connected；B-source group is connected with B sections of ac bus, and B sections of ac bus are connected with B Rectification Power Factor ac input ends, and B is whole
The positive pole output of stream unit is connected with positive bus-bar, and the output of B Rectification Power Factors negative pole is connected with negative busbar；In A sections of ac bus and B sections of friendships
Provided with C sections of ac bus between stream bus, C sections of ac bus are connected with public standby Rectification Power Factor ac input end, public standby
It is connected with the output of Rectification Power Factor positive pole with positive bus-bar, public standby Rectification Power Factor negative pole output is connected with negative busbar；Negative busbar with
The negative pole connection of Large Electrolytic Aluminium series, positive bus-bar is connected with the positive pole of Large Electrolytic Aluminium series；C sections of ac bus two ends difference
It is connected through switching switch with A sections of ac bus or B sections of ac bus.
Compared with prior art, the present invention realizes two small power supplies while the mesh powered to one big Electrolytic Aluminum Series
, technical scheme without increasing Rectification Power Factor in addition, and two groups of power supply power-feed sections can be played again standby motor-generator set
The effect of group.Therefore, considerable equipment investment has been saved, without increase floor space.Hand-over process operations of the present invention are convenient
Without particular arrangement, the power reguirements of Large Electrolytic Aluminium series are disclosure satisfy that, it is safe and reliable in use.
Brief description of the drawings
Fig. 1 is the mode of connection schematic diagram of the present invention.
Mark in figure for：1-A power supply groups, 2-B power supply groups, 3-A sections of ac bus, 4-C sections of ac bus, 5-B sections of friendships
Bus is flowed, 6-A Rectification Power Factors, the public standby Rectification Power Factors of 7-, 8-B Rectification Power Factors, 9- positive bus-bars, 10- negative busbars, 11- is large-scale
Electrolytic Aluminum Series, 12- switching switches.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples, but not as to any of the present invention
Limitation.
A kind of two groups of power supplys of the present invention are simultaneously to the method for a Large Electrolytic Aluminium series power, as shown in figure 1, the party
Method is used as the public standby Rectification Power Factor 7 of two groups of power supply power-feed sections using a standby Rectification Power Factor；When one of which power supply is supplied
During the Rectification Power Factor maintenance of electric section institute band, public standby Rectification Power Factor 7 just accesses this group of power supply power-feed section, it is ensured that electrolytic cell
Need for electricity.Specific method is to increase by one section of double ac bus, the section between double ac bus of two groups of power supply power-feed sections
Double ac bus are connected with public standby Rectification Power Factor 7；Increased one section double ac bus switch 12 by four switchings and distinguished
It is connected with double ac bus of two groups of power supply power-feed sections；When a Rectification Power Factor of any one section of institute's band of two groups of power supply power-feed sections is examined
When repairing, public standby Rectification Power Factor 7 is accessed by the section by switching switch 12, the connection with another section of bus is simultaneously switched off.It is logical
Cross breaker or disconnecting switch and public standby Rectification Power Factor is accessed into the section, simultaneously switch off the connection with another section of bus, it is cut
Changing operating process is：Public standby Rectification Power Factor is had a power failure, the block switch being currently running then first is disconnected and puts into will transport again
Capable block switch, standby Rectification Power Factor is switched to the power-feed section of opposite side under unloaded condition from the power-feed section of side, switches
After the completion of transmission operation again.
A kind of two groups of power supplys of the invention constituted according to the above method are simultaneously to Large Electrolytic Aluminium series power
Wiring construction, as shown in figure 1, the wiring construction includes a-power supply group 1 and B-source group 2；A-power supply group 1 and A sections of ac bus 3 connects
Connect, A sections of ac bus 3 are connected with the ac input end of A Rectification Power Factors 6, the output of the positive pole of A Rectification Power Factors 6 is connected with positive bus-bar 9, and A is whole
The negative pole output of stream unit 6 is connected with negative busbar 10；B-source group 2 is connected with B sections of ac bus 5, B sections of ac bus 5 and B rectifications
The ac input end of unit 8 is connected, and the output of the positive pole of B Rectification Power Factors 8 is connected with positive bus-bar 9, the output of the negative pole of B Rectification Power Factors 8 and negative mother
Line 10 is connected；Provided with C sections of ac bus 4 between A sections of ac bus 3 and B sections of ac bus 5, C sections of ac bus 4 with it is public
The standby ac input end of Rectification Power Factor 7 connection, the public standby positive pole of Rectification Power Factor 7 output is connected with positive bus-bar 9, public standby whole
The negative pole output of stream unit 7 is connected with negative busbar 10；Negative busbar 10 is connected with the negative pole of Large Electrolytic Aluminium series 11, positive bus-bar 9 with
The positive pole connection of Large Electrolytic Aluminium series 11；The C sections of two ends of ac bus 4 are respectively through switching switch 12 and A sections of ac bus 3 and B
Section ac bus 5 is connected.
Embodiment
, can be with as shown in figure 1, using two when the serial electricity consumption of Large Electrolytic Aluminium is more than the power supply capacity of small power supply
Small power supply is simultaneously a Large Electrolytic Aluminium series power.The standby unit of itself in the Rectification Power Factor configured using N+1,
As the public standby Rectification Power Factor of two groups of power supply power-feed sections, therefore without increasing Rectification Power Factor in addition.This example is using two groups of electricity
Source powers, and every group of power supply includes two power supplys of the using and the reserved, so one has four power supplys.Main wiring mode is that double-bus band is female
The structure of connection, when one maintenance of unit of certain power supply institute band, standby unit just accesses the mains side, still can make full use of this
The power supply capacity of power supply, it is ensured that the need for electricity of electrolytic cell.Specific practice is in the middle of the four sections of buses powered in two groups of power supplys, to increase
Plus two sections of buses, increase bus section, busbar section and only connect a unit as the public standby unit of two groups of power supply power-feed sections, increase bus section, busbar section
It is connected by four breakers or disconnecting switch with other four sections of buses, the mode of connection switches mode of operation during standby unit
For：Public standby Rectification Power Factor is had a power failure, the block switch being currently running then first is disconnected and puts into the segmentation that will be run again and open
Close, after standby unit is switched to opposite side under unloaded condition from side, standby unit transmission operation again, this method of operation makes to cut
The relay protection of breaker is changed without particular arrangement.This example solves two small power supplies and supplied simultaneously to one big Electrolytic Aluminum Series
Electricity, not increasing standby unit, and can play two groups of power supply power-feed sections has standby unit.This patent investment reduction, power supply
It is safe and reliable, easy to operate.
Claims (2)
1. a kind of two groups of power supplys are simultaneously to the method for a Large Electrolytic Aluminium series power, it is characterised in that：This method uses one
The standby Rectification Power Factor of platform, is used as the public standby Rectification Power Factor of two groups of power supply power-feed sections；When one of which power supply power-feed section institute band
The maintenance of a Rectification Power Factor when, public standby Rectification Power Factor just accesses this group of power supply power-feed section, it is ensured that the electricity consumption of electrolytic cell is needed
Ask；Every group of power supply includes two power supplys of the using and the reserved, has four power supplys；Power supply power-feed section main wiring mode is that double-bus band is female
The structure of connection, when one maintenance of unit of certain power supply institute band, standby unit just accesses the mains side, still can make full use of this
The power supply capacity of power supply, it is ensured that the need for electricity of electrolytic cell；Specific practice is in the middle of the four sections of buses powered in two groups of power supplys, to increase
Plus two sections of buses, increase bus section, busbar section and only connect a unit as the public standby unit of two groups of power supply power-feed sections, increase bus section, busbar section
It is connected by four breakers or disconnecting switch with other four sections of buses, the mode of connection switches mode of operation during standby unit
For：Public standby Rectification Power Factor is had a power failure, the block switch being currently running then first is disconnected and puts into the segmentation that will be run again and open
Close, after standby unit is switched to opposite side under unloaded condition from side, standby unit transmission operation again after the completion of switching.
2. a kind of two groups of power supplys are simultaneously to the wiring construction of a Large Electrolytic Aluminium series power, it is characterised in that：Including a-power supply
Group（1）With B-source group（2）；A-power supply group（1）With A sections of ac bus（3）Connection, A sections of ac bus（3）With A Rectification Power Factors（6）
Ac input end is connected, A Rectification Power Factors（6）Positive pole is exported and positive bus-bar（9）Connection, A Rectification Power Factors（6）Negative pole is exported and negative mother
Line（10）Connection；B-source group（2）With B sections of ac bus（5）Connection, B sections of ac bus（5）With B Rectification Power Factors（8）Exchange is defeated
Enter end connection, B Rectification Power Factors（8）Positive pole is exported and positive bus-bar（9）Connection, B Rectification Power Factors（8）Negative pole is exported and negative busbar（10）
Connection；In A sections of ac bus（3）With B sections of ac bus（5）Between provided with C sections of ac bus（4）, C sections of ac bus（4）With
Public standby Rectification Power Factor（7）Ac input end is connected, public standby Rectification Power Factor（7）Positive pole is exported and positive bus-bar（9）Connection,
Public standby Rectification Power Factor（7）Negative pole is exported and negative busbar（10）Connection；Negative busbar（10）With Large Electrolytic Aluminium series（11）'s
Negative pole is connected, positive bus-bar（9）With Large Electrolytic Aluminium series（11）Positive pole connection；C sections of ac bus（4）Two ends are respectively through switching
Switch（12）With A sections of ac bus（3）Or B sections of ac bus（5）Connection；When A Rectification Power Factors（6）With B Rectification Power Factors（8）In
During wherein one Rectification Power Factor maintenance, public standby Rectification Power Factor（7）Just access this group of power supply power-feed section, it is ensured that the use of electrolytic cell
Electric demand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846345.9A CN104505930B (en) | 2014-12-31 | 2014-12-31 | Two groups of power supplys are simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846345.9A CN104505930B (en) | 2014-12-31 | 2014-12-31 | Two groups of power supplys are simultaneously to the method and wiring construction of Large Electrolytic Aluminium series power |
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| Publication Number | Publication Date |
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| CN104505930A CN104505930A (en) | 2015-04-08 |
| CN104505930B true CN104505930B (en) | 2017-09-12 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367483Y (en) * | 2009-03-18 | 2009-12-23 | 贵阳铝镁设计研究院 | Electrolytic aluminum factory rectifier unit allocation structure |
| CN204271737U (en) * | 2014-12-31 | 2015-04-15 | 贵阳铝镁设计研究院有限公司 | Two small power supplies are simultaneously to the wiring construction of a Large Electrolytic Aluminium series power |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8901780B2 (en) * | 2010-07-28 | 2014-12-02 | Kabushiki Kaisha Toshiba | Image forming apparatus |
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- 2014-12-31 CN CN201410846345.9A patent/CN104505930B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367483Y (en) * | 2009-03-18 | 2009-12-23 | 贵阳铝镁设计研究院 | Electrolytic aluminum factory rectifier unit allocation structure |
| CN204271737U (en) * | 2014-12-31 | 2015-04-15 | 贵阳铝镁设计研究院有限公司 | Two small power supplies are simultaneously to the wiring construction of a Large Electrolytic Aluminium series power |
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| CN104505930A (en) | 2015-04-08 |
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