CN102108527B - 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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- CN102108527B CN102108527B CN200910266236.9A CN200910266236A CN102108527B CN 102108527 B CN102108527 B CN 102108527B CN 200910266236 A CN200910266236 A CN 200910266236A CN 102108527 B CN102108527 B CN 102108527B
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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 is a plurality of Aluminum Electrolysis Production series in general each factory, for it provides the galvanic voltage regulating rectifier transformer unit that has 4～8 cover parallel runnings, the above-mentioned voltage regulating rectifier transformer unit for the parallel running of Aluminum Electrolysis Production series is designated hereinafter simply as user.
Although at present, for the method for customer power supply has multiplely, these methods cut both ways.Although some method is safe and reliable to operation, track investment is large, and power transmission line corridor takes up an area many, can not make full use of the ability to transmit electricity of circuit.Although also can to solve track investment large for some method, power transmission line corridor takes up an area many problems, moves that also basic security is reliable, but can not solve the problem of the ability to transmit electricity that makes full use of circuit.Although also some method has solved that track investment is large, power transmission line corridor takes up an area 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 subject to again impact.Therefore above-mentioned method is all unsatisfactory.
Summary of the invention
The object of the invention is to: provide a kind of and guaranteeing under power supply system prerequisite safe and reliable to operation, can effectively reduce track investment, make circuit corridor take up an area less, also can to make full use of the ability to transmit electricity of circuit large-scale aluminium electrolysis factory method of supplying power to and system, 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, the method be all users by two Power supplies, two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with user's bus separately through user's isolating switch, and two user's buses are connected with two power supply buses through lead-in circuit breaker respectively, between two power supply buses, through bus, connect.
In above-mentioned large-scale aluminium electrolysis factory method of supplying power to, described user refers to the electrolytic series consisting of one group of electrolyzer, and provides galvanic one group of voltage regulating rectifier transformer unit for each electrolytic series.
In aforementioned large-scale aluminium electrolysis factory method of supplying power to, the capacity of described two power supplys all can meet whole loads of all users.
The large-scale aluminium electrolysis of the present invention factory power supply system forming according to the method described above, comprise the first power supply and second source, the first power supply is connected with the second power supply buses with the first power supply buses with second source isolating switch through the first power circuit breaker respectively with second source, the first power supply buses is connected with one group of user's bus through one group of lead-in circuit breaker respectively with the second power supply buses, and user's bus is connected with each user through user's isolating switch respectively.
In said system, described user's bus is double-bus, and double-bus comprises the first bus and the second bus.
In aforementioned system, between described the first power supply buses and the second power supply buses, be provided with bus.
Compared with prior art, one or several user in all users is broken down while needing all devices in failed subs criber all to trip, can realize all isolating switchs in failed subs criber by the lead-in circuit breaker of failed subs criber in disconnection the present invention all trips, the tripping operation that can may not occur because of the isolating switch in each rectifier unit current supply circuit is asynchronous, cause certain rectifier unit running overload, rectifier unit is safe.When the first power supply (or second source) need to overhaul, can disconnect the first power circuit breaker (or second source isolating switch), and connect bus, to guarantee that all users can both normally move, system safety in operation is high.
Because whole users in the present invention only need two Power supplies, each power supply all can provide required whole loads for all users.Guaranteeing, under power supply system prerequisite safe and reliable to operation, can effectively to reduce track investment, circuit corridor is taken up an area less, and can make full use of the ability to transmit electricity of circuit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
It is example that accompanying drawing be take two users.Being labeled as in accompanying drawing: 1-the first power supply, 2-second source, 3-the first power circuit breaker, 4-second source isolating switch, 5-the first power supply buses, 6-the second power supply buses, 7-lead-in circuit breaker, 8-the first bus, 9-the second bus, 10-user's isolating switch, 11-user, 12-bus.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.
Embodiment.Fig. 1 is schematic diagram of the present invention.In Fig. 1, only having drawn is two users, and remaining user is identical with Fig. 1.Described user refers to the electrolytic series consisting of a plurality of electrolyzers, and by 4～8, overlaps the rectifier unit that voltage regulating rectifier transformers form for each electrolytic series provides galvanic.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 has 4～8 cover parallel runnings, each voltage regulating rectifier transformer unit unit capacity is 80～140MV the first approximately, and each electrolytic series power load is 170～600MW approximately.Existing for each voltage of supply of customer power supply is generally 220KV or 330KV, 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, be all users by two Power supplies, two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with user's bus separately through user's isolating switch, and two user's buses are connected with two power supply buses through lead-in circuit breaker respectively, between two power supply buses, through bus, connect.Described user refers to the electrolytic series consisting 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 meet whole loads of all users.
The system forming according to aforementioned large-scale aluminium electrolysis factory method of supplying power to, comprise the first power supply 1 and second source 2, the first power supply 1 is connected with the second power supply buses 6 with the first power supply buses 5 with second source isolating switch 4 through the first power circuit breaker 3 respectively with second source 2, the 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 the 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 double-bus, and double-bus comprises the first bus 8 and the second bus 9.Between described the first power supply buses 5 and the second power supply buses 6, be provided with bus 12.
Principle of work of the present invention
When the present invention normally works, only use the first power supply (second source) power supply, the first power supply (second source) is connected with the second power supply buses with the first power supply buses through the first power circuit breaker (second source isolating switch).When the first power supply (second source) needs interruption maintenance, can cut off the first power circuit breaker (second source isolating switch) being connected with the first power supply (second source), and then the second source isolating switch (the first power circuit breaker) that is connected with second source (the first power supply) of connection, second source (the first power supply) is connected with the second power supply buses with the first power supply buses.The syndeton of two electric power generating composition the using and the reserved, any one power supply that can be in two power supplys, another maintenance, can not affect production.
If there is one or several user to break down while maybe needing to overhaul, only need the corresponding lead-in circuit breaker 7 of open failure user and user's isolating switch 10 successively, do not affect other user's normal operation.
Claims (4)
1.Yi Zhong large-scale aluminium electrolysis factory method of supplying power to, it is characterized in that: the method is that all users are by two Power supplies, described user refers to the electrolytic series consisting of one group of electrolyzer, and provides galvanic one group of voltage regulating rectifier transformer unit for each electrolytic series; Two power supplys are connected with two power supply buses through power circuit breaker respectively; Each user is connected with user's bus separately through user's isolating switch, and user's bus is double-bus; Article two, dual user bus is connected with two power supply buses through lead-in circuit breaker respectively, between two power supply buses, through bus, connects.
2. large-scale aluminium electrolysis factory method of supplying power to according to claim 1, is characterized in that: the capacity of described two power supplys all can meet whole loads of all users.
3. the large-scale aluminium electrolysis factory power supply system forming according to method described in claim 1 or 2, it is characterized in that: comprise the first power supply (1) and second source (2), the first power supply (1) is connected with the second power supply buses (6) with the first power supply buses (5) with second source isolating switch (4) through the first power circuit breaker (3) respectively with second source (2), the 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 the second power supply buses (6), user's bus is double-bus, double-bus comprises the first bus (8) and the second bus (9), user's bus is connected with each user (11) through user's isolating switch (10) respectively.
4. large-scale aluminium electrolysis factory power supply system according to claim 3, is characterized in that: between described the first power supply buses (5) and the second power supply buses (6), be provided with bus (12).
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 |
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| 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 CN102108527A (en) | 2011-06-29 |
| CN102108527B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723669B (en) * | 2012-06-01 | 2015-03-25 | 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 for mutual hot backup of two segments of DC power buses |
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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 rapid 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 |
-
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 rapid automatic switching device |
| 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 |
| 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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| CN102108527A (en) | 2011-06-29 |
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