CN104578732A - Common-mode filter for open winding motor double-end-cascade inverter - Google Patents

Common-mode filter for open winding motor double-end-cascade inverter Download PDF

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Publication number
CN104578732A
CN104578732A CN201510055899.1A CN201510055899A CN104578732A CN 104578732 A CN104578732 A CN 104578732A CN 201510055899 A CN201510055899 A CN 201510055899A CN 104578732 A CN104578732 A CN 104578732A
Authority
CN
China
Prior art keywords
common
inverter
mode filter
electric capacity
winding motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510055899.1A
Other languages
Chinese (zh)
Inventor
于月森
杜朋
邵祥
钟志祥
贺威
曾羿博
马文豪
黎伟
杨帆
许家斌
王亮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN201510055899.1A priority Critical patent/CN104578732A/en
Publication of CN104578732A publication Critical patent/CN104578732A/en
Pending legal-status Critical Current

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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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • 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
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H02M1/123—Suppression of common mode voltage or current

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

The invention relates to a common-mode filter for an open winding motor double-end-cascade inverter. The common-mode filter consists of an LCR (inductance, capacitance and resistance) circuit, three-phase output of an inverter 1 and an inverter 2 is connected with an electric reactor (1-6) which is high in voltage and current, the electric reactor (1-6) is serially connected with a capacitor (7-12) which is high in capacitance, and the capacitor is connected with direct-current side midpoints of the inverters through a resistor 1 (13) and a resistor 2 (14).

Description

open winding electric machine both-end cascade type DC-to-AC converter common-mode filter
Technical field
The present invention relates to a kind of inverter filter, particularly relate to one and open 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 by this invention 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 present invention 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 present invention 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 invention is: the present invention can effectively eliminate or suppress out winding electric machine both-end tandem type five-electrical level inverter output common mode voltage, solves motor shaft voltage, shaft current and earth current problem, ensures to open winding electric machine reliability service.
Accompanying drawing explanation
Fig. 1 is the structural representation of common-mode filter of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, the invention provides one and 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.
CN201510055899.1A 2015-02-04 2015-02-04 Common-mode filter for open winding motor double-end-cascade inverter Pending CN104578732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510055899.1A CN104578732A (en) 2015-02-04 2015-02-04 Common-mode filter for open winding motor double-end-cascade inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510055899.1A CN104578732A (en) 2015-02-04 2015-02-04 Common-mode filter for open winding motor double-end-cascade inverter

Publications (1)

Publication Number Publication Date
CN104578732A true CN104578732A (en) 2015-04-29

Family

ID=53094134

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510055899.1A Pending CN104578732A (en) 2015-02-04 2015-02-04 Common-mode filter for open winding motor double-end-cascade inverter

Country Status (1)

Country Link
CN (1) CN104578732A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106208642A (en) * 2016-07-20 2016-12-07 合肥工业大学 It is applied to out the output filter of winding transformer formula twin inverter
CN108242897A (en) * 2017-11-14 2018-07-03 哈尔滨理工大学 A kind of improved three-phase four-leg inverter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103117556A (en) * 2013-03-04 2013-05-22 安徽省电力公司宣城供电公司 Voltage frequency control system and control method of PCS (Process Control System)
CN203313066U (en) * 2013-03-07 2013-11-27 芜湖市金越电子科技有限公司 Large-piezoelectricity sensor system
CN103825474A (en) * 2012-11-16 2014-05-28 台达电子工业股份有限公司 Power conversion device with low common-mode noise and application system thereof
CN204408183U (en) * 2015-02-04 2015-06-17 中国矿业大学 Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103825474A (en) * 2012-11-16 2014-05-28 台达电子工业股份有限公司 Power conversion device with low common-mode noise and application system thereof
CN103117556A (en) * 2013-03-04 2013-05-22 安徽省电力公司宣城供电公司 Voltage frequency control system and control method of PCS (Process Control System)
CN203313066U (en) * 2013-03-07 2013-11-27 芜湖市金越电子科技有限公司 Large-piezoelectricity sensor system
CN204408183U (en) * 2015-02-04 2015-06-17 中国矿业大学 Open winding electric machine both-end cascade type DC-to-AC converter common-mode filter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106208642A (en) * 2016-07-20 2016-12-07 合肥工业大学 It is applied to out the output filter of winding transformer formula twin inverter
CN108242897A (en) * 2017-11-14 2018-07-03 哈尔滨理工大学 A kind of improved three-phase four-leg inverter

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RJ01 Rejection of invention patent application after publication

Application publication date: 20150429

RJ01 Rejection of invention patent application after publication