CN106059262A - High-reliability high-voltage frequency converter - Google Patents
High-reliability high-voltage frequency converter Download PDFInfo
- Publication number
- CN106059262A CN106059262A CN201610522916.2A CN201610522916A CN106059262A CN 106059262 A CN106059262 A CN 106059262A CN 201610522916 A CN201610522916 A CN 201610522916A CN 106059262 A CN106059262 A CN 106059262A
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- China
- Prior art keywords
- control system
- phase
- converter
- reliability
- side winding
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a high-reliability high-voltage frequency converter which comprises a three-phase multi-secondary-side winding transformer, N power units and a master control system, wherein the high-reliability high-voltage frequency converter is characterized in that the original side of the three-phase multi-secondary-side winding transformer is connected with the voltage output end of a three-phase power grid; each winding of the secondary side of the three-phase multi-secondary-side winding transformer is connected with a power unit; the same-phase power units are serially connected; the master control system comprises two or more than two control systems; a redundancy control mechanism is adopted between the control systems; information transmission between the control systems is realized through an industrial bus; and the control systems are connected with all power units through independent optical fibers. Through using the standby control system, the high-reliability high-voltage frequency converter has advantages of satisfying the generating requirement of industrial and mining enterprises, effectively improving reliability of the high-voltage frequency converter, and reducing risk of unplanned shutdown of the frequency converter.
Description
Technical field
The present invention relates to high-voltage frequency converter technology field, particularly relate to a kind of high-reliability high converter.
Background technology
Along with the development of Power Electronic Technique, converter is as the important component part of Intelligent electronic control system, at national warp
The every field of Ji, as the industries such as electric power, water conservancy, petrochemical industry, metallurgy play the most important effect.
The industrialized fast development of China promotes motor manufacture and develops to high-power direction with application.High-tension electricity
Machine is often the Primary Component in corresponding industry, and converter is as the sole source of high-voltage motor, and its reliability becomes restriction
The big key factor produced.
The reliability of high voltage converter, as the core of high voltage converter, is played a decisive role by master control system.Often
The master control system of rule design is made up of parts such as electric power loop, sampling circuit, control loops, electric power loop fault, sampling circuit
Abnormal or control partial failure all will cause converter to be shut down, and cause production system major accident, affect the normal of operating mode enterprise
The production order, also will have influence on the steady of infrastructure that corresponding electric power networks, oil gas pipeline etc. involve the interests of the state and the people time serious
Fixed operation.
Summary of the invention
The invention provides a kind of high-reliability high converter, by using standby control system, meet operating mode
The generation demand of enterprise, is effectively increased the reliability of high voltage converter, reduces the risk that the unplanned property of converter is shut down.
The invention provides a kind of high-reliability high converter, including: three-phase many vice-side winding transformator, N number of power
Unit and master control system；Wherein:
The former limit of described three-phase many vice-side winding transformator is connected with the voltage output end of three phase network, the many secondary of three-phase around
Each winding and a power cell of group transformer secondary are connected, the power unit cascade of homophase；
Described master control system comprises two sets or two and overlaps above control system, uses redundancy control between described control system
Making mechanism, carries out mutual information transmission by industrial bus；
Described control system is connected with all power cells by independent optical fiber.
Preferably, described often set control system all includes: power supply, control station, PLC assembly and sampling apparatus.
Preferably, described sampling apparatus is Hall element.
Preferably, the former limit of described three-phase many vice-side winding transformator is by the electricity of primary cut-out with described three phase network
Pressure outfan is connected.
From such scheme, a kind of high-reliability high transformator that the present invention provides, master control system comprises two sets
Or two above control systems of set, use Redundant Control mechanism between control system, carry out mutual information biography by industrial bus
Defeated, when the most a set of control system breaks down, it is possible to enable standby control system and be operated, thus meet operating mode
The generation demand of enterprise, is effectively increased the reliability of high voltage converter, reduces the risk that the unplanned property of converter is shut down.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the main circuit topological structure figure of power unit cascade many level-types high voltage converter disclosed by the invention；
Fig. 2 is the structural representation of a kind of high-reliability high converter disclosed in the embodiment of the present invention one；
Fig. 3 is the structural representation of a kind of high-reliability high converter disclosed in the embodiment of the present invention two.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, be the main circuit topology knot of power unit cascade many level-types high voltage converter disclosed by the invention
Composition, the major loop of the cascaded high-voltage frequency converter commonly used at present is mainly by three-phase many vice-side winding transformator 1 and some
Individual power cell 2 forms.
As in figure 2 it is shown, disclosed in the embodiment of the present invention one a kind of high-reliability high converter, including:
Three-phase many vice-side winding transformator 1, N number of power cell 2 and master control system 30；Wherein:
The former limit of three-phase many vice-side winding transformator 1 is connected with the voltage output end of three phase network, the many vice-side winding of three-phase
Each winding and a power cell 2 of transformator 1 secondary are connected, and the power cell 2 of homophase is connected；
Master control system 30 comprises two sets or two and overlaps above control system 301, uses redundancy control between control system 301
Making mechanism, carries out mutual information transmission by industrial bus；
Control system 301 is connected with all power cells 2 by independent optical fiber.
The operation principle of above-described embodiment is: high voltage converter operationally, the most a set of control in master control system 30
System 301 is in running order, detects grid side and the voltage of motor side, electric current, and by optical fiber and each power
Unit 2 is connected, and is controlled power cell 2.Often set control system 301 in master control system 30 carries out phase by industrial bus
Communication between Hu, it is ensured that in converter running, often overlap that control system 301 can be complete receive converter be
System data, after breaking down in control system 301 inside enabled, monitor converter in real time due to other control system 301
Running status and the state of enable control system 301, it is possible to directly receive control, according to identical algorithm controls frequency conversion
Device continues to run with, it is achieved the switching undisturbed function between control system 301, controls converter and continues stable operation.
It can thus be seen that in the above-described embodiments, master control system comprises two sets or two and overlaps above control system, control
Use Redundant Control mechanism between system processed, carry out mutual information transmission by industrial bus, when the most a set of control system is sent out
During raw fault, it is possible to enable standby control system and be operated, thus meet the generation demand of operating mode enterprise, be effectively improved
The reliability of high voltage converter, reduces the risk that the unplanned property of converter is shut down.
As it is shown on figure 3, disclosed in the embodiment of the present invention two a kind of high-reliability high converter, with master in this embodiment
As a example by Ore-controlling Role comprises three set control systems, it is described in detail.
Concrete high voltage converter comprises: three-phase many vice-side winding transformator 1, N number of power cell 2 and three sets control system
System, first set control system comprises: the first power supply (not indicating in the drawings), the first control station the 3, the oneth PLC assembly 6 and
First sampling apparatus (does not indicates) in the drawings；Second set control system comprises: the second power supply (not indicating in the drawings),
Second control station the 4, the 2nd PLC assembly 7 and the first sampling apparatus (not indicating in the drawings)；3rd set control system comprises: the
Three power supplies (not indicating in the drawings), the 3rd control station the 5, the 3rd PLC assembly 8 and the 3rd sampling apparatus (are not marked in the drawings
Illustrate).
The former limit of three-phase many vice-side winding transformator 1 is connected with the voltage output end of three phase network by primary cut-out,
Each winding and a power cell 2 of three-phase many vice-side winding transformator 1 secondary are connected, and the power cell 2 of homophase is connected；
Use Redundant Control mechanism between three set control systems, carry out mutual information transmission by industrial bus 9；
Control system is connected with all power cells 2 by independent optical fiber.
In the above-described embodiments, for avoiding current supply circuit fault to cause three set control systems to lose efficacy simultaneously, the present embodiment pair
Often set control system is powered by the power supply of a road independence respectively, and often the power supply in set control system is only to correspondence
Control station in control system, PLC assembly, sampling apparatus, such as Hall element, be powered, it is ensured that single set of control system
Independence.It will be apparent that this set control system that single power supply fault only can cause it to power lost efficacy, do not interfere with
Other two sets control systems.
Often grid side and the voltage of motor side, electric current are detected by set control system the most respectively, and by optical fiber respectively
It is connected with each power cell, power cell is controlled.Three set control systems are carried out each other by industrial bus 9
Communication, it is ensured that often overlap the system data receiving converter that control system can be complete in converter running.
Numbered by hard contact definition control system between three set control systems, 1# control system, when enabling, other are two years old
Set control system is in hot stand-by duty.Three set control systems are circulated switching according to default order and enable, it is ensured that frequency conversion
Device run duration only has a set of control system sending control instruction all the time, improves the operation stability of converter.
The problem being likely to occur in the handoff procedure between control systems, the present invention is overlapped in converter running three
It is realized by the following method the switching undisturbed between three set control systems:
Interconnecting communication by industrial bus 9 between three set control systems, often set control system reads additionally respectively
The data of two set control systems, and do not carry out the write operation of data.When converter runs, three overlap control system and pass through high-speed light
Fibre carries out clock synchronization and controls the comparison voted data needed for cycle synchronisation strategy acquisition arbitration mechanism, is arbitrated reliably
As a result, according to arbitration result, each control station determines that oneself operation is the most normal.
Converter is monitor in real time due to other two sets control systems after breaking down inside the control system enabled
Running status and the state of enable control station, it is possible to directly receive control, continue according to identical algorithm controls converter
Reforwarding row, it is achieved the switching undisturbed function between control system, controls converter and continues stable operation.
If the function described in the present embodiment method realizes and as independent product pin using the form of SFU software functional unit
When selling or use, a calculating device-readable can be stored in and take in storage medium.Based on such understanding, the embodiment of the present invention
The part contributing prior art or the part of this technical scheme can embody with the form of software product, and this is soft
Part product is stored in a storage medium, including some instructions with so that calculating equipment (can be personal computer,
Server, mobile computing device or the network equipment etc.) perform completely or partially walking of method described in each embodiment of the present invention
Suddenly.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-Only Memory), deposit at random
The various media that can store program code such as access to memory (RAM, Random Access Memory), magnetic disc or CD.
In this specification, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment, same or similar part sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.
Multiple amendment to these embodiments will be apparent from for those skilled in the art, as defined herein
General Principle can realize without departing from the spirit or scope of the present invention in other embodiments.Therefore, the present invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein and features of novelty phase one
The widest scope caused.
Claims (4)
1. a high-reliability high converter, it is characterised in that including: three-phase many vice-side winding transformator, N number of power cell
And master control system；Wherein:
The former limit of described three-phase many vice-side winding transformator is connected with the voltage output end of three phase network, and the many vice-side winding of three-phase become
Each winding of depressor secondary and a power cell are connected, the power unit cascade of homophase；
Described master control system comprises two sets or two and overlaps above control system, uses Redundant Control machine between described control system
System, carries out mutual information transmission by industrial bus；
Described control system is connected with all power cells by independent optical fiber.
High-reliability high converter the most according to claim 1, it is characterised in that described often set control system is all wrapped
Include: power supply, control station, PLC assembly and sampling apparatus.
High-reliability high converter the most according to claim 2, it is characterised in that described sampling apparatus is hall sensing
Device.
High-reliability high converter the most according to claim 3, it is characterised in that described three-phase many vice-side winding transformation
The former limit of device is connected with the voltage output end of described three phase network by primary cut-out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522916.2A CN106059262A (en) | 2016-07-05 | 2016-07-05 | High-reliability high-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522916.2A CN106059262A (en) | 2016-07-05 | 2016-07-05 | High-reliability high-voltage frequency converter |
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| Publication Number | Publication Date |
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| CN106059262A true CN106059262A (en) | 2016-10-26 |
Family
ID=57200968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610522916.2A Pending CN106059262A (en) | 2016-07-05 | 2016-07-05 | High-reliability high-voltage frequency converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181394A (en) * | 2017-07-05 | 2017-09-19 | 沈阳远大电力电子科技有限公司 | A kind of high voltage converter |
| CN110601506A (en) * | 2019-08-09 | 2019-12-20 | 北京动力源科技股份有限公司 | Matrix redundancy type frequency converter system |
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| CN101025632A (en) * | 2007-03-23 | 2007-08-29 | 南京航空航天大学 | Track type conveyor control device |
| CN201041997Y (en) * | 2006-12-15 | 2008-03-26 | 天津华云自控股份有限公司 | Middle voltage frequency conversion speed-adjustable device for wind blower and water pump |
| CN101634855A (en) * | 2009-08-07 | 2010-01-27 | 总装备部工程设计研究总院 | Redundancy backup control system of ground equipment for opening ceremony and closing ceremony of large-scale sports meeting |
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| CN103095102A (en) * | 2013-01-15 | 2013-05-08 | 华为技术有限公司 | Frequency converter controlling method and frequency converter controlling equipment and frequency converter |
| CN203377831U (en) * | 2013-05-27 | 2014-01-01 | 伟肯（中国）电气传动有限公司 | Frequency converter redundancy control system |
| CN205081559U (en) * | 2015-10-21 | 2016-03-09 | 辽宁荣信电气传动技术有限责任公司 | High -voltage inverter control system hot standby topological structure |
| CN206164342U (en) * | 2016-07-05 | 2017-05-10 | 沈阳远大电力电子科技有限公司 | High reliability high voltage frequency converter |
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Patent Citations (8)
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| CN201041997Y (en) * | 2006-12-15 | 2008-03-26 | 天津华云自控股份有限公司 | Middle voltage frequency conversion speed-adjustable device for wind blower and water pump |
| CN101025632A (en) * | 2007-03-23 | 2007-08-29 | 南京航空航天大学 | Track type conveyor control device |
| CN101634855A (en) * | 2009-08-07 | 2010-01-27 | 总装备部工程设计研究总院 | Redundancy backup control system of ground equipment for opening ceremony and closing ceremony of large-scale sports meeting |
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| CN103095102A (en) * | 2013-01-15 | 2013-05-08 | 华为技术有限公司 | Frequency converter controlling method and frequency converter controlling equipment and frequency converter |
| CN203377831U (en) * | 2013-05-27 | 2014-01-01 | 伟肯（中国）电气传动有限公司 | Frequency converter redundancy control system |
| CN205081559U (en) * | 2015-10-21 | 2016-03-09 | 辽宁荣信电气传动技术有限责任公司 | High -voltage inverter control system hot standby topological structure |
| CN206164342U (en) * | 2016-07-05 | 2017-05-10 | 沈阳远大电力电子科技有限公司 | High reliability high voltage frequency converter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107181394A (en) * | 2017-07-05 | 2017-09-19 | 沈阳远大电力电子科技有限公司 | A kind of high voltage converter |
| CN107181394B (en) * | 2017-07-05 | 2023-12-05 | 沈阳远大电力电子科技有限公司 | High-voltage frequency converter |
| CN110601506A (en) * | 2019-08-09 | 2019-12-20 | 北京动力源科技股份有限公司 | Matrix redundancy type frequency converter system |
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Application publication date: 20161026 |