CN107181394A - A kind of high voltage converter - Google Patents
A kind of high voltage converter Download PDFInfo
- Publication number
- CN107181394A CN107181394A CN201710541915.7A CN201710541915A CN107181394A CN 107181394 A CN107181394 A CN 107181394A CN 201710541915 A CN201710541915 A CN 201710541915A CN 107181394 A CN107181394 A CN 107181394A
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- phase
- side winding
- high voltage
- voltage converter
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- 238000004804 winding Methods 0.000 claims abstract description 36
- 239000013307 optical fiber Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000018199 S phase Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
The present invention provides a kind of high voltage converter, and three-phase power grid voltage is received by the primary side winding of many vice-side winding transformers of three-phase；Corresponded and be connected with the input of 3N rectification unit respectively by 3N vice-side winding of many vice-side winding transformers of three-phase again；The output end of each rectification unit is connected from the input of M different inversion units respectively；Output end per N number of inversion unit is connected, and is connected into M groups three-phase output branch road；One end of every group of three-phase output branch road is connected, and the other end is connected with motor；And then the driving to M motor is realized by a high voltage converter, the problem of solving high cost in the prior art and big maintenance.
Description
Technical field
The present invention relates to electric and electronic technical field, more particularly to a kind of high voltage converter.
Background technology
With the development of Power Electronic Technique, high voltage converter as Intelligent electronic control system important component, in state
The every field of people's economy, such as electric power, water conservancy, petrochemical industry, metallurgy industry play more and more important effect.
At commercial Application scene, due to process requirements, generally configure two (or many) motors to meet production requirement.So
And in the practical application of high voltage converter, be substantially and matched somebody with somebody in the way of a high voltage converter drives a motor
Put.
But, a high voltage converter need to be separately configured in every motor, certainly will cause the increase of civil engineering construction cost, and equipment is thrown
Cost increase is provided, the unfavorable factor such as later maintenance amount is big.
The content of the invention
In view of this, the invention provides a kind of high voltage converter, to solve, cost is high in the prior art and maintenance is big
The problem of.
To achieve the above object, the technical scheme that the application is provided is as follows：
A kind of high voltage converter, including：The many vice-side winding transformers of three-phase, 3N rectification unit, 3NM inversion unit and
Master control system；N and M is the positive integer more than 1；Wherein：
The primary side winding of many vice-side winding transformers of three-phase receives three-phase power grid voltage；
The many vice-side winding transformers of three-phase include 3N vice-side winding；
3N vice-side winding is corresponded with the input of 3N rectification unit respectively to be connected；
The output end of each rectification unit is connected with the input of corresponding M inversion unit respectively, makes M inversion unit
Share same dc bus；
The output end series connection of the inversion unit of the N number of different dc bus of 3M groups, is connected into M groups three-phase output branch road；
One end of every group of three-phase output branch road is connected, and the other end is connected with motor；
The output end of the master control system is connected with the control end of 3NM inversion unit.
It is preferred that, the master control system includes：Multiple controllers.
It is preferred that, the number of the controller is M；
M controller is corresponded with M groups three-phase output branch road to be connected.
It is preferred that, the master control system is connected by optical fiber with the control end of 3NM inversion unit.
It is preferred that, the rectification unit is three-phase bridge full wave rectifying unit.
From such scheme, the invention provides a kind of high voltage converter, pass through many vice-side winding transformers of three-phase
Primary side winding receives three-phase power grid voltage；Again by 3N vice-side winding of many vice-side winding transformers of the three-phase respectively with 3N
The input of individual rectification unit, which is corresponded, to be connected；The output end of each rectification unit respectively from M different inversion units
Input is connected；Output end per N number of inversion unit is connected, and is connected into M groups three-phase output branch road；Every group of three-phase exports branch road
One end is connected, and the other end is connected with motor；And then the driving to M motor is realized by a high voltage converter, solve existing
There is in technology cost high and the problem of big maintenance.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of high voltage converter provided in an embodiment of the present invention；
Fig. 2 is another structural representation of high voltage converter provided in an embodiment of the present invention.
Embodiment
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
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
The invention provides a kind of high voltage converter, the problem of to solve high cost in the prior art and big maintenance.
Specifically, referring to Fig. 1, high voltage converter, including：The many vice-side winding transformers 101 of three-phase, 3N rectification unit
102nd, 3NM inversion unit 103 and master control system 104；N and M is the positive integer more than 1；Wherein：
The primary side winding of many vice-side winding transformers 101 of three-phase receives three-phase power grid voltage；
The many vice-side winding transformers 101 of three-phase include 3N vice-side winding；
3N vice-side winding is corresponded with the input of 3N rectification unit 102 respectively to be connected；
The output end of each rectification unit 102 is connected with the input of corresponding M inversion unit 103 respectively, makes M individual inverse
Become the same dc bus of units shared；
The output end series connection of the inversion unit 103 of the N number of different dc bus of 3M groups, is connected into M groups three-phase output branch road；
One end of every group of three-phase output branch road is connected, and the other end is connected with motor；
The output end of master control system 104 is connected with the control end of 3NM inversion unit.
Specifically operation principle is：
The primary side winding of many vice-side winding transformers 101 of three-phase is connected directly or by high-voltage switch gear with three phase network；Three
Each winding of more secondary of vice-side winding transformer 101 is joined directly together with a rectification unit 102 respectively.
Rectification unit 102 is used to realize alternating current to the conversion of direct current.
One rectification unit 102 and M (two or more) inversion unit 103 is attached, and M (two or more) are inverse
Become unit 103 and share same dc bus.
Inversion unit 103 is used to realize that direct current is changed to alternating current.
Turning on and off for the control inversion unit 103 of master control system 104, realizes PWM controls.
The output end series connection of the inversion unit 103 of the N number of different dc bus of 3M groups, is connected into M groups three-phase output branch road, point
It is not：R phases export branch road, S-phase output branch road and T-phase output branch road；Inversion unit 103 in difference group three-phase output branch road can
Independent operating, drives different loads (motor)；That is M groups three-phase output branch road according to the control of master control system 104, realize for
The driving of M motor.
The high voltage converter that the present embodiment is provided, by above-mentioned principle, can be realized most for live multiple electric motors driving
Excellent configuration；Demand of the high voltage converter to installing space is also reduced simultaneously, equipment initial investment is reduced, and reduce equipment
Maintenance workload, i.e., realize the driving to M motor by a high voltage converter, solves cost height and dimension in the prior art
The problem of shield amount is big.
It is preferred that, rectification unit 102 is three-phase bridge full wave rectifying unit.
Rectification unit 102 uses three-phase bridge full-wave rectification, is carried out using power electronic devices such as diode, IGBT whole
Stream, realizes alternating current to the conversion of direct current.
In specific practical application, inversion unit 103 can be by Support Capacitor and IGBT or other power electronic devices
Composition, realizes that direct current is changed to alternating current.
Another embodiment of the present invention provides another high voltage converter, referring to Fig. 2, including：The many vice-side windings of three-phase
Transformer 101,3N rectification unit 102,3NM inversion unit 103 and master control system 104；N and M is just whole more than 1
Number；Wherein：
The primary side winding of many vice-side winding transformers 101 of three-phase receives three-phase power grid voltage；
The many vice-side winding transformers 101 of three-phase include 3N vice-side winding；
3N vice-side winding is corresponded with the input of 3N rectification unit 102 respectively to be connected；
The output end of each rectification unit 102 is connected with the input of corresponding M inversion unit 103 respectively, makes M individual inverse
Become the same dc bus of units shared；
The output end series connection of the inversion unit 103 of the N number of different dc bus of 3M groups, is connected into M groups three-phase output branch road；
One end of every group of three-phase output branch road is connected, and the other end is connected with motor；
The output end of master control system 104 is connected with the control end of 3NM inversion unit.
Preferably, master control system 104 includes：Multiple controllers.
It is more highly preferred to, the number of controller is M；
M controller is corresponded with M groups three-phase output branch road to be connected.
Additionally, it is preferred that, master control system 104 is connected by optical fiber with the control end of 3NM inversion unit 103.
In specific practical application, master control system 104 can be made up of one or more controllers, and difference group three-phase is defeated
Inversion unit in out branch can be by a controller centralized Control；It is of course also possible to be controlled respectively by respective controller
System, voltage, the electric current of each controller respectively to grid side and motor side detect, and by optical fiber respectively with it is each inverse
Become unit 103 to be connected, inversion unit 103 is controlled, to realize respective autonomous working.
The present embodiment is on the basis of above-described embodiment, and its control section uses modular designs, each controller list
Solely the inversion unit in one group of three-phase output branch road of control, separate before each other, is independent of each other, improves equipment utilization
Rate, reduces cost of equipment maintenance.
Other specific operation principles are same as the previously described embodiments, no longer repeat one by one herein.
The embodiment of each in this specification is described by the way of progressive, what each embodiment was stressed be with it is other
Between the difference of embodiment, each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (5)
1. a kind of high voltage converter, it is characterised in that including：The many vice-side winding transformers of three-phase, 3N rectification unit, 3NM are individual
Inversion unit and master control system；N and M is the positive integer more than 1；Wherein：
The primary side winding of many vice-side winding transformers of three-phase receives three-phase power grid voltage；
The many vice-side winding transformers of three-phase include 3N vice-side winding；
3N vice-side winding is corresponded with the input of 3N rectification unit respectively to be connected；
The output end of each rectification unit is connected with the input of corresponding M inversion unit respectively, shares M inversion unit
Same dc bus；
The output end series connection of the inversion unit of the N number of different dc bus of 3M groups, is connected into M groups three-phase output branch road；
One end of every group of three-phase output branch road is connected, and the other end is connected with motor；
The output end of the master control system is connected with the control end of 3NM inversion unit.
2. high voltage converter according to claim 1, it is characterised in that the master control system includes：Multiple controllers.
3. high voltage converter according to claim 2, it is characterised in that the number of the controller is M；
M controller is corresponded with M groups three-phase output branch road to be connected.
4. according to any described high voltage converter of claims 1 to 3, it is characterised in that the master control system by optical fiber with
The control end of 3NM inversion unit is connected.
5. according to any described high voltage converter of claims 1 to 3, it is characterised in that the rectification unit is three-phase bridge
Full wave rectifying unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541915.7A CN107181394B (en) | 2017-07-05 | 2017-07-05 | High-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710541915.7A CN107181394B (en) | 2017-07-05 | 2017-07-05 | High-voltage frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107181394A true CN107181394A (en) | 2017-09-19 |
| CN107181394B CN107181394B (en) | 2023-12-05 |
Family
ID=59845528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710541915.7A Active CN107181394B (en) | 2017-07-05 | 2017-07-05 | High-voltage frequency converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN107181394B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100327793A1 (en) * | 2009-06-30 | 2010-12-30 | Risto Komulainen | Power transmission method and power transmission apparatus |
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| CN102158097A (en) * | 2011-04-07 | 2011-08-17 | 李永盼 | Energy feedback type power unit cascaded high voltage frequency converter |
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| CN102355140A (en) * | 2011-09-08 | 2012-02-15 | 武汉大学 | Concatenated multilevel inverter circuit capable of realizing energy feedback and control method |
| CN102594242A (en) * | 2012-02-10 | 2012-07-18 | 北方工业大学 | Vector control method based on indirect matrix converter multi-machine transmission system |
| CN103856070A (en) * | 2012-12-07 | 2014-06-11 | 上海亿思特电气股份有限公司 | Energy feedback type high-voltage frequency converter |
| CN104638941A (en) * | 2014-06-11 | 2015-05-20 | 襄阳南车电气系统技术有限公司 | Large-capacity anti-explosion frequency converter applicable to multiple output voltage levels |
| CN104702123A (en) * | 2015-03-23 | 2015-06-10 | 深圳市英威腾电气股份有限公司 | Main loop of three-level power unit, power unit and high voltage frequency changer |
| CN105743336A (en) * | 2014-12-10 | 2016-07-06 | 沈阳远大电力电子科技有限公司 | Cascade type high voltage frequency converter and main control system thereof |
| CN106059262A (en) * | 2016-07-05 | 2016-10-26 | 沈阳远大电力电子科技有限公司 | High-reliability high-voltage frequency converter |
| CN206932161U (en) * | 2017-07-05 | 2018-01-26 | 沈阳远大电力电子科技有限公司 | A kind of high voltage converter |
-
2017
- 2017-07-05 CN CN201710541915.7A patent/CN107181394B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100327793A1 (en) * | 2009-06-30 | 2010-12-30 | Risto Komulainen | Power transmission method and power transmission apparatus |
| CN102299670A (en) * | 2010-06-25 | 2011-12-28 | 谭雪开 | Centralized control cabinet for oil pumping unit well field |
| CN102025166A (en) * | 2010-07-22 | 2011-04-20 | 荣信电力电子股份有限公司 | Power-generating interconnected topological structure of transformerless water-turbine generator |
| CN102158097A (en) * | 2011-04-07 | 2011-08-17 | 李永盼 | Energy feedback type power unit cascaded high voltage frequency converter |
| CN102355140A (en) * | 2011-09-08 | 2012-02-15 | 武汉大学 | Concatenated multilevel inverter circuit capable of realizing energy feedback and control method |
| CN102594242A (en) * | 2012-02-10 | 2012-07-18 | 北方工业大学 | Vector control method based on indirect matrix converter multi-machine transmission system |
| CN103856070A (en) * | 2012-12-07 | 2014-06-11 | 上海亿思特电气股份有限公司 | Energy feedback type high-voltage frequency converter |
| CN104638941A (en) * | 2014-06-11 | 2015-05-20 | 襄阳南车电气系统技术有限公司 | Large-capacity anti-explosion frequency converter applicable to multiple output voltage levels |
| CN105743336A (en) * | 2014-12-10 | 2016-07-06 | 沈阳远大电力电子科技有限公司 | Cascade type high voltage frequency converter and main control system thereof |
| CN104702123A (en) * | 2015-03-23 | 2015-06-10 | 深圳市英威腾电气股份有限公司 | Main loop of three-level power unit, power unit and high voltage frequency changer |
| CN106059262A (en) * | 2016-07-05 | 2016-10-26 | 沈阳远大电力电子科技有限公司 | High-reliability high-voltage frequency converter |
| CN206932161U (en) * | 2017-07-05 | 2018-01-26 | 沈阳远大电力电子科技有限公司 | A kind of high voltage converter |
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| CN107181394B (en) | 2023-12-05 |
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