CN102108527A - Method and system for supplying power to large aluminum electrolytic plant - Google Patents
Method and system for supplying power to large aluminum electrolytic plant Download PDFInfo
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- CN102108527A CN102108527A CN2009102662369A CN200910266236A CN102108527A CN 102108527 A CN102108527 A CN 102108527A CN 2009102662369 A CN2009102662369 A CN 2009102662369A CN 200910266236 A CN200910266236 A CN 200910266236A CN 102108527 A CN102108527 A CN 102108527A
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Abstract
The invention discloses a method and a system for supplying power to a large aluminum electrolytic plant. In the method, all users are powered by two power sources which are respectively connected with two power supply buses through a power source breaker; each user is connected with respective user bus through a user breaker; two user buses are respectively connected with the two power supply buses through an incoming breaker; and the two power supply buses are connected through a bus tie breaker. The system comprises a first power source and a second power source which are respectively connected with a first power supply bus and a second power supply bus through a first power source breaker and a second power source breaker; the first power supply bus and the second power supply bus are respectively connected with a group of user buses through a group of incoming breakers 7; and the user buses are respectively connected with each user 11 through a user breaker 10. The invention can effectively reduce line investment on the premise of ensuring safe and reliable operation of a power supply system; line corridors occupy small areas; and the transmission capacity of the lines can be fully utilized.
Description
Technical field
The present invention relates to a kind of method of supplying power to and system, particularly relate to a kind of large-scale aluminium electrolysis factory's method of supplying power to and system.
Background technology
Aluminum Electrolysis Production factory rules and regulations mould is increasing, there are a plurality of Aluminum Electrolysis Production series in general each factory, for it provides the galvanic voltage regulating rectifier transformer unit that 4～8 cover parallel runnings are arranged, above-mentioned voltage regulating rectifier transformer unit for the parallel running of Aluminum Electrolysis Production series is designated hereinafter simply as the user.
Though it is multiple that present method for user's power supply has, these methods cut both ways.Though some method is safe and reliable to operation, track investment is big, and the transmitting line corridor is taken up an area of many, can not make full use of the ability to transmit electricity of circuit.Though also can to solve track investment big for some method, many problems are taken up an area of in the transmitting line corridor, move that also basic security is reliable, but can not solve the problem of the ability to transmit electricity that makes full use of circuit.Though also some method has solved that track investment is big, the transmitting line corridor is taken up an area of many and can not make full use of the problem of the ability to transmit electricity of circuit, the safe reliability of operation has been subjected to influence again.Therefore above-mentioned method is all unsatisfactory.
Summary of the invention
The objective of the invention is to: provide a kind of and guaranteeing under the power supply system prerequisite safe and reliable to operation, can effectively reduce track investment, make the circuit corridor take up an area of less, and can make full use of the large-scale aluminium electrolysis factory method of supplying power to and the system of the ability to transmit electricity of circuit, to overcome the deficiencies in the prior art.
Technical scheme of the present invention: a kind of large-scale aluminium electrolysis of the present invention factory method of supplying power to is, this method is that all users are powered by two power supplys, and two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with separately user's bus through user's isolating switch, and two user's buses are connected with two power supply buses through lead-in circuit breaker respectively, connect through bus between two power supply buses.
In the above-mentioned large-scale aluminium electrolysis factory method of supplying power to, described user is meant the electrolytic series that is made of one group of electrolyzer, and provides galvanic one group of voltage regulating rectifier transformer unit for each electrolytic series.
In the aforementioned large-scale aluminium electrolysis factory method of supplying power to, the capacity of described two power supplys all can satisfy whole loads of all users.
The large-scale aluminium electrolysis of the present invention factory power supply system that constitutes according to the method described above, comprise first power supply and second source, first power supply is connected with second power supply buses with first power supply buses with the second source isolating switch through first power circuit breaker respectively with second source, first power supply buses is connected with one group of user's bus through one group of lead-in circuit breaker respectively with second power supply buses, and user's bus is connected with each user through user's isolating switch respectively.
In the said system, described user's bus is a double-bus, and double-bus comprises first bus and second bus.
In the aforementioned system, be provided with bus between described first power supply buses and second power supply buses.
Compared with prior art, when one or several user among all users is broken down when needing all devices in the failed subs criber all to trip, can realize that all isolating switchs all trip in the failed subs criber by the lead-in circuit breaker that disconnects failed subs criber among the present invention, the tripping operation that can may occur because of the isolating switch in each rectifier unit current supply circuit is not asynchronous, cause certain rectifier unit running overload, rectifier unit is safe.When first power supply (or second source) needs maintenance, can disconnect first power circuit breaker (or second source isolating switch), and connect bus, can both normally move system's safety in operation height to guarantee all users.
Because whole users only need two power supplys power supplies among the present invention, each power supply all can provide required whole loads for all users.Guaranteeing can effectively to reduce track investment under the power supply system prerequisite safe and reliable to operation, the circuit corridor is taken up an area of less, and can make full use of the ability to transmit electricity of circuit.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Accompanying drawing is an example with two users.Being labeled as in the accompanying drawing: 1-first power supply, 2-second source, 3-first power circuit breaker, 4-second source isolating switch, 5-first power supply buses, 6-second power supply buses, 7-lead-in circuit breaker, 8-first bus, 9-second bus, 10-user's isolating switch, 11-user, 12-bus.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Embodiment.Fig. 1 is a synoptic diagram of the present invention.Only having drawn among Fig. 1 is two users, and remaining user is identical with Fig. 1.Described user is meant the electrolytic series that is made of a plurality of electrolyzers, and overlaps the rectifier unit that voltage regulating rectifier transformers constitute for each electrolytic series provides galvanic by 4～8.Each Aluminum Electrolysis Production series production capacity 100～350Kt/ first, for each Aluminum Electrolysis Production series provides the galvanic voltage regulating rectifier transformer unit that 4～8 cover parallel runnings are arranged, about 80～the 140MV the first of each voltage regulating rectifier transformer unit unit capacity, the about 170～600MW of each electrolytic series power load.Existing each voltage of supply for user's power supply is generally 220KV or 330KV, and the size of the visual electrolytic series power load of the transmission capacity of its circuit is a plurality of series power supplies simultaneously.
Large-scale aluminium electrolysis of the present invention factory method of supplying power to is that all users are powered by two power supplys, and two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with separately user's bus through user's isolating switch, and two user's buses are connected with two power supply buses through lead-in circuit breaker respectively, connect through bus between two power supply buses.Described user is meant the electrolytic series that is made of one group of electrolyzer, and provides galvanic one group of voltage regulating rectifier transformer unit for each electrolytic series.The capacity of described two power supplys all can satisfy whole loads of all users.
The system that constitutes according to aforementioned large-scale aluminium electrolysis factory method of supplying power to, comprise first power supply 1 and second source 2, first power supply 1 is connected with second power supply buses 6 with first power supply buses 5 with second source isolating switch 4 through first power circuit breaker 3 respectively with second source 2, first power supply buses 5 is connected with one group of user's bus through one group of lead-in circuit breaker 7 respectively with second power supply buses 6, and user's bus is connected with each user 11 through user's isolating switch 10 respectively.Described user's bus is a double-bus, and double-bus comprises first bus 8 and second bus 9.Be provided with bus 12 between described first power supply buses 5 and second power supply buses 6.
Principle of work of the present invention
Only use first power supply (second source) power supply during works better of the present invention, first power supply (second source) is connected with second power supply buses with first power supply buses through first power circuit breaker (second source isolating switch).When first power supply (second source) when needing interruption maintenance, can cut off first power circuit breaker (second source isolating switch) that is connected with first power supply (second source), and then the second source isolating switch (first power circuit breaker) that is connected with second source (first power supply) of connection, second source (first power supply) is connected with second power supply buses with first power supply buses.Two power supplys constitute the syndeton of the using and the reserved, can be by any one power supplies in two power supplys, and another maintenance can not influence production.
If there is one or several user to break down when maybe needing to overhaul, only the pairing lead-in circuit breaker 7 of open failure user and user's isolating switch 10 get final product successively, do not influence other user's normal operation.
Claims (6)
1. large-scale aluminium electrolysis factory method of supplying power to, it is characterized in that: this method is that all users are powered by two power supplys, two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with separately user's bus through user's isolating switch, and two user's buses are connected with two power supply buses through lead-in circuit breaker respectively, connect through bus between two power supply buses.
2. according to the described large-scale aluminium electrolysis of claim 1 factory method of supplying power to, it is characterized in that: described user is meant the electrolytic series that is made of one group of electrolyzer, and provides galvanic one group of voltage regulating rectifier transformer unit for each electrolytic series.
3. according to the described large-scale aluminium electrolysis of claim 2 factory method of supplying power to, it is characterized in that: the capacity of described two power supplys all can satisfy whole loads of all users.
4. large-scale aluminium electrolysis factory power supply system that constitutes according to claim 1,2 or 3 described methods, it is characterized in that: comprise first power supply (1) and second source (2), first power supply (1) is connected with second power supply buses (6) with first power supply buses (5) with second source isolating switch (4) through first power circuit breaker (3) respectively with second source (2), first power supply buses (5) is connected with one group of user's bus through one group of lead-in circuit breaker (7) respectively with second power supply buses (6), and user's bus is connected with each user (11) through user's isolating switch (10) respectively.
5. large-scale aluminium electrolysis according to claim 4 factory power supply system, it is characterized in that: described user's bus is a double-bus, double-bus comprises first bus (8) and second bus (9).
6. according to the described large-scale aluminium electrolysis of claim 5 factory power supply system, it is characterized in that: be provided with bus (12) between described first power supply buses (5) and second power supply buses (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266236.9A CN102108527B (en) | 2009-12-23 | 2009-12-23 | Method and system for supplying power to large aluminum electrolytic plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910266236.9A CN102108527B (en) | 2009-12-23 | 2009-12-23 | Method and system for supplying power to large aluminum electrolytic plant |
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| Publication Number | Publication Date |
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| CN102108527A true CN102108527A (en) | 2011-06-29 |
| CN102108527B CN102108527B (en) | 2014-03-26 |
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| CN200910266236.9A Expired - Fee Related CN102108527B (en) | 2009-12-23 | 2009-12-23 | Method and system for supplying power to large aluminum electrolytic plant |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723669A (en) * | 2012-06-01 | 2012-10-10 | 云南云铝泽鑫铝业有限公司 | Wiring method for improving reliability of power supply system in aluminum electrolysis industry |
| CN104836332A (en) * | 2015-04-29 | 2015-08-12 | 酒泉钢铁(集团)有限责任公司 | Parallel power supplying method of electrolytic aluminum different-power-supply-point direct-current sides |
| CN106532919A (en) * | 2016-12-19 | 2017-03-22 | 广东电网有限责任公司东莞供电局 | System architecture with two segments of direct-current power buses mutually in hot backup |
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| SU584303A1 (en) * | 1975-07-01 | 1977-12-15 | Предприятие П/Я А-3697 | Stabilized double-polarity voltage source |
| SU1356172A1 (en) * | 1984-07-13 | 1987-11-30 | Р.С.Цгоев | Apparatus for controlling double-supply machine |
| US5334878A (en) * | 1993-04-13 | 1994-08-02 | General Electric Company | Inverter control for third rail head end power |
| CN1173061A (en) * | 1996-08-01 | 1998-02-11 | 株式会社日立制作所 | Protection system for power receiving station |
| CN2744696Y (en) * | 2004-04-06 | 2005-12-07 | 成都天丰电子电器设备有限公司 | Power supply cabinet controlled by electrolytic cell |
| CN201234136Y (en) * | 2008-07-16 | 2009-05-06 | 苏州凯达电器仪表成套有限公司 | Dual power source electricity supply system |
| CN101451251A (en) * | 2008-12-17 | 2009-06-10 | 贵阳铝镁设计研究院 | Power supply method and device of decomposing tank series |
| CN101488667A (en) * | 2008-01-18 | 2009-07-22 | 贵阳铝镁设计研究院 | Power supply method for large sponge titanium smelting total transforming plant |
| CN201298750Y (en) * | 2008-10-09 | 2009-08-26 | 郎定川 | Double-power-supply quick automatic switching device |
| CN201587990U (en) * | 2009-12-23 | 2010-09-22 | 贵阳铝镁设计研究院 | Large-sized aluminum electrolysis plant power supply system |
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2009
- 2009-12-23 CN CN200910266236.9A patent/CN102108527B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU584303A1 (en) * | 1975-07-01 | 1977-12-15 | Предприятие П/Я А-3697 | Stabilized double-polarity voltage source |
| SU1356172A1 (en) * | 1984-07-13 | 1987-11-30 | Р.С.Цгоев | Apparatus for controlling double-supply machine |
| US5334878A (en) * | 1993-04-13 | 1994-08-02 | General Electric Company | Inverter control for third rail head end power |
| CN1173061A (en) * | 1996-08-01 | 1998-02-11 | 株式会社日立制作所 | Protection system for power receiving station |
| CN2744696Y (en) * | 2004-04-06 | 2005-12-07 | 成都天丰电子电器设备有限公司 | Power supply cabinet controlled by electrolytic cell |
| CN101488667A (en) * | 2008-01-18 | 2009-07-22 | 贵阳铝镁设计研究院 | Power supply method for large sponge titanium smelting total transforming plant |
| CN201234136Y (en) * | 2008-07-16 | 2009-05-06 | 苏州凯达电器仪表成套有限公司 | Dual power source electricity supply system |
| CN201298750Y (en) * | 2008-10-09 | 2009-08-26 | 郎定川 | Double-power-supply quick automatic switching device |
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| CN201587990U (en) * | 2009-12-23 | 2010-09-22 | 贵阳铝镁设计研究院 | Large-sized aluminum electrolysis plant power supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723669A (en) * | 2012-06-01 | 2012-10-10 | 云南云铝泽鑫铝业有限公司 | Wiring method for improving reliability of power supply system in aluminum electrolysis industry |
| CN104836332A (en) * | 2015-04-29 | 2015-08-12 | 酒泉钢铁(集团)有限责任公司 | Parallel power supplying method of electrolytic aluminum different-power-supply-point direct-current sides |
| CN106532919A (en) * | 2016-12-19 | 2017-03-22 | 广东电网有限责任公司东莞供电局 | System architecture with two segments of direct-current power buses mutually in hot backup |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102108527B (en) | 2014-03-26 |
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