CN204408183U - Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter - Google Patents
Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter Download PDFInfo
- Publication number
- CN204408183U CN204408183U CN201520076224.0U CN201520076224U CN204408183U CN 204408183 U CN204408183 U CN 204408183U CN 201520076224 U CN201520076224 U CN 201520076224U CN 204408183 U CN204408183 U CN 204408183U
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- Prior art keywords
- mode filter
- inverter
- common
- electric machine
- electric capacity
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- Expired - Fee Related
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- 238000004804 winding Methods 0.000 title claims abstract description 15
- 239000004743 Polypropylene Substances 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- Inverter Devices (AREA)
Abstract
The utility model relates to one and opens winding electric machine both-end cascade type DC-to-AC converter common-mode filter, this common-mode filter is made up of LCR circuit, the three-phase of inverter 1 and inverter 2 exports linked reactor (1-6), and described reactor is all large voltage high-current reactor; Reactor (1-6) is connected with electric capacity (7-12), and described electric capacity is large bulk capacitance; Electric capacity is respectively by resistance 1(13) with resistance 2(14) be connected with two inverter direct-flow side mid points.
Description
Technical field
The utility model relates to a kind of inverter filter, particularly relates to one and opens winding electric machine both-end tandem type five-electrical level inverter common-mode filter.
Background technology
Opening winding electric machine both-end tandem type five-electrical level inverter is a kind of desirable middle high-power electric application of installation topology.Its inverter output common mode voltage can cause shaft voltage, shaft current and earth current problem, the normal operation of serious harm motor.
Summary of the invention
Technical problem to be solved in the utility model is to provide one and opens winding electric machine both-end tandem type five-electrical level inverter common-mode filter, can effectively eliminate or suppress inverter output common mode voltage, solves motor shaft voltage, shaft current and earth current problem.
The utility model solves above-mentioned technical problem by following technical proposals: one opens winding electric machine both-end tandem type five-electrical level inverter common-mode filter, it is characterized in that, two common-mode filters are connected on two side inverter leading-out terminals respectively and open between winding electric machine, and common-mode filter is connected with inverter direct-flow side mid point, common-mode filter is made up of LCR circuit.Particularly, for inverter 1, inverter three-phase export and reactor 1(1), reactor 2(2) and reactor 3(3) connect, then respectively with electric capacity 1(7), electric capacity 2(8) with electric capacity 3(9) be connected, finally by resistance 1(1) be connected with inverter 1 DC side mid point.What the utility model can be applicable to two independent DC power supplies opens winding electric machine both-end tandem type five-electrical level inverter system.
Positive progressive effect of the present utility model is: winding electric machine both-end tandem type five-electrical level inverter output common mode voltage can effectively be eliminated or suppress out to the utility model, solve motor shaft voltage, shaft current and earth current problem, ensure to open winding electric machine reliability service.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model common-mode filter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, the utility model provides one to open winding electric machine both-end tandem type five-electrical level inverter common-mode filter, common-mode filter is made up of LCR circuit, and the three-phase of inverter 1 and inverter 2 exports linked reactor (1-6), and described reactor is all large voltage high-current reactor; Reactor (1-6) is connected with electric capacity (7-12), and described electric capacity is large bulk capacitance; Electric capacity is respectively by resistance 1(13) with resistance 2(14) be connected with two inverter direct-flow side mid points.
This common-mode filter adopts LCR circuit, selects suitable LCR parameter that common-mode filter can be made effectively to eliminate or suppresses out the output common mode voltage of winding electric machine both-end tandem type five-electrical level inverter.
Claims (2)
1. open a winding electric machine both-end cascade type DC-to-AC converter common-mode filter, it is characterized in that: common-mode filter is made up of LCR circuit, the three-phase of inverter 1 and inverter 2 exports and connects reactor (1-6); Reactor (1-6) is connected with electric capacity (7-12), and described electric capacity is large bulk capacitance; Electric capacity is respectively by resistance 1(13) with resistance 2(14) be connected with two inverter direct-flow side mid points.
2. according to claim 1ly open winding electric machine both-end cascade type DC-to-AC converter common-mode filter, it is characterized in that: electric capacity (7-12) adopts Large Copacity polypropylene capactive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076224.0U CN204408183U (en) | 2015-02-04 | 2015-02-04 | Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520076224.0U CN204408183U (en) | 2015-02-04 | 2015-02-04 | Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408183U true CN204408183U (en) | 2015-06-17 |
Family
ID=53432014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520076224.0U Expired - Fee Related CN204408183U (en) | 2015-02-04 | 2015-02-04 | Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204408183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578732A (en) * | 2015-02-04 | 2015-04-29 | 中国矿业大学 | Common-mode filter for open winding motor double-end-cascade inverter |
| CN105429555A (en) * | 2015-11-30 | 2016-03-23 | 北京赛思亿电气科技有限公司 | High-power drive system for asynchronous motor and control method of high-power drive system |
-
2015
- 2015-02-04 CN CN201520076224.0U patent/CN204408183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578732A (en) * | 2015-02-04 | 2015-04-29 | 中国矿业大学 | Common-mode filter for open winding motor double-end-cascade inverter |
| CN105429555A (en) * | 2015-11-30 | 2016-03-23 | 北京赛思亿电气科技有限公司 | High-power drive system for asynchronous motor and control method of high-power drive system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |