CN206932161U - A kind of high voltage converter - Google Patents
A kind of high voltage converter Download PDFInfo
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- CN206932161U CN206932161U CN201720808748.3U CN201720808748U CN206932161U CN 206932161 U CN206932161 U CN 206932161U CN 201720808748 U CN201720808748 U CN 201720808748U CN 206932161 U CN206932161 U CN 206932161U
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- voltage converter
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- 239000003990 capacitor Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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Abstract
The utility model provides a kind of high voltage converter, and three-phase power grid voltage is received by the primary side winding of the more 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 the more vice-side winding transformers of three-phase again；Input of the output end of each rectification unit respectively from M different inversion units is connected；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, solve the problems, such as that cost is high in the prior art and maintenance is big.
Description
Technical field
It the utility model is related to electric and electronic technical field, more particularly to a kind of high voltage converter.
Background technology
With the development of Power Electronic Technique, important component of the high voltage converter as Intelligent electronic control system, 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, two (or more) motors are generally configured to meet production requirement.So
And in the practical application of high voltage converter, it is substantially and is 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, the increase of civil engineering construction cost certainly will be caused, equipment is thrown
Providing cost increases, the unfavorable factors such as later maintenance amount is big.
Utility model content
In view of this, the utility model provides a kind of high voltage converter, to solve cost height in the prior art and safeguard
Measure the problem of big.
To achieve the above object, the technical scheme that the application provides is as follows：
A kind of high voltage converter, including：The more 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 the more vice-side winding transformers of three-phase receives three-phase power grid voltage；
The more vice-side winding transformers of three-phase include 3N vice-side winding；
3N vice-side winding corresponds with the input of 3N rectification unit respectively to be connected；
Input of the output end of each rectification unit respectively with corresponding M inversion unit is connected, and 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, it 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 terminal of 3NM inversion unit.
Preferably, the master control system includes：Multiple controllers.
Preferably, the number of the controller is M；
M controller corresponds with M groups three-phase output branch road to be connected.
Preferably, the master control system is connected by optical fiber with the control terminal of 3NM inversion unit.
Preferably, the rectification unit is three-phase bridge full wave rectifying unit.
From such scheme, the utility model provides a kind of high voltage converter, passes through the more vice-side winding transformations of three-phase
The primary side winding of device receives three-phase power grid voltage；Distinguished again by 3N vice-side winding of the more vice-side winding transformers of the three-phase
Correspond and be connected with the input of 3N rectification unit；The output end of each rectification unit respectively from M different inversion lists
The input of member 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 output branch
The one end on 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, solve
Cost is high and the problem of maintenance is big in the prior art.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the high voltage converter that the utility model embodiment provides；
Fig. 2 is another structural representation for the high voltage converter that the utility model embodiment provides.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model provides a kind of high voltage converter, and to solve, cost is high in the prior art and maintenance is big asks
Topic.
Specifically, referring to Fig. 1, high voltage converter, including：The more 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 the more vice-side winding transformers 101 of three-phase receives three-phase power grid voltage；
The more vice-side winding transformers 101 of three-phase include 3N vice-side winding；
3N vice-side winding corresponds with the input of 3N rectification unit 102 respectively to be connected；
Input of the output end of each rectification unit 102 respectively with corresponding M inversion unit 103 is connected, and 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, it 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 terminal of 3NM inversion unit.
Specifically operation principle is：
The primary side winding of the more 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 much secondary of vice-side winding transformer 101 is joined directly together with a rectification unit 102 respectively.
Rectification unit 102 is used to realize conversion of the alternating current to 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.
Master control system 104 controls turning on and off for inversion unit 103, realizes PWM controls.
The output end series connection of the inversion unit 103 of the N number of different dc bus of 3M groups, M groups three-phase output branch road is connected into, 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, drive different load (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 provides, by above-mentioned principle, the driving of live multiple electric motors can be directed to and realized most
Excellent configuration；Demand of the high voltage converter to installing space is also reduced simultaneously, reduces equipment initial investment, and reduce equipment
Maintenance workload, i.e., the driving to M motor is realized by a high voltage converter, solve cost height and dimension in the prior art
The problem of shield amount is big.
Preferably, 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 conversion of the alternating current to direct current.
In specific practical application, inversion unit 103 can be by Support Capacitor and IGBT or other power electronic devices
Composition, realize that direct current is changed to alternating current.
Another embodiment of the utility model provides another high voltage converter, referring to Fig. 2, including：The more secondary of three-phase
Winding transformer 101,3N rectification unit 102,3NM inversion unit 103 and master control system 104；N and M is more than 1 just
Integer；Wherein：
The primary side winding of the more vice-side winding transformers 101 of three-phase receives three-phase power grid voltage；
The more vice-side winding transformers 101 of three-phase include 3N vice-side winding；
3N vice-side winding corresponds with the input of 3N rectification unit 102 respectively to be connected；
Input of the output end of each rectification unit 102 respectively with corresponding M inversion unit 103 is connected, and 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, it 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 terminal 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 corresponds 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 terminal 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 controlled respectively by respective controller
System, each controller detects to the voltage of grid side and motor side, electric current respectively, and by optical fiber respectively with it is each inverse
Become unit 103 to be connected, inversion unit 103 is controlled, each worked independently with realizing.
For the present embodiment on the basis of above-described embodiment, its control section uses modular designs, each controller list
The solely inversion unit in one group of three-phase output branch road of control, each other independently of each other before, is independent of each other, improves equipment utilization
Rate, reduce cost of equipment maintenance.
Other specific operation principles are same as the previously described embodiments, no longer repeat one by one herein.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (5)
- A kind of 1. high voltage converter, it is characterised in that including：The more 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 the more vice-side winding transformers of three-phase receives three-phase power grid voltage；The more vice-side winding transformers of three-phase include 3N vice-side winding；3N vice-side winding corresponds with the input of 3N rectification unit respectively to be connected；Input of the output end of each rectification unit respectively with corresponding M inversion unit is connected, and 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, it 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 terminal 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 corresponds with M groups three-phase output branch road to be connected.
- 4. high voltage converter according to any one of claims 1 to 3, it is characterised in that the master control system by optical fiber with The control terminal of 3NM inversion unit is connected.
- 5. high voltage converter according to any one 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 |
|---|---|---|---|
| CN201720808748.3U CN206932161U (en) | 2017-07-05 | 2017-07-05 | A kind of high voltage converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808748.3U CN206932161U (en) | 2017-07-05 | 2017-07-05 | A kind of high voltage converter |
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| Publication Number | Publication Date |
|---|---|
| CN206932161U true CN206932161U (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720808748.3U Withdrawn - After Issue CN206932161U (en) | 2017-07-05 | 2017-07-05 | A kind of high voltage converter |
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Cited By (1)
| 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 |
-
2017
- 2017-07-05 CN CN201720808748.3U patent/CN206932161U/en not_active Withdrawn - After Issue
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 |
| 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 |
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Granted publication date: 20180126 Effective date of abandoning: 20231205 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180126 Effective date of abandoning: 20231205 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |