CN108183604A - A kind of electric machine controller electromagnetic interface filter - Google Patents
A kind of electric machine controller electromagnetic interface filter Download PDFInfo
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- CN108183604A CN108183604A CN201711460187.3A CN201711460187A CN108183604A CN 108183604 A CN108183604 A CN 108183604A CN 201711460187 A CN201711460187 A CN 201711460187A CN 108183604 A CN108183604 A CN 108183604A
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- capacitance
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- 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
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
A kind of electric machine controller electromagnetic interface filter, it uses dual chamber shielding construction, the No.1 cavity and No. two cavitys set including housing, enclosure interior, No.1 cavity is internally provided with busbar common mode filtering circuit, the input terminal of busbar common mode filtering circuit is connected with the high voltage supply interface of electric machine controller, output terminal is connected with power supply, No. two cavitys are internally provided with phase line common mode filtering circuit, the input terminal of phase line common mode filtering circuit is connected with three interfaces of electric machine controller, and output terminal is connected with three interfaces of motor.The design not only effectively eliminates the interference between busbar and phase line, but also improves electromagnetic sealing effect, installed convenient for arrangement.
Description
Technical field
The invention belongs to power electronics fields, and in particular to a kind of electric machine controller electromagnetic interface filter, suitable for electricity
Electrical automobile electric machine controller can effectively exclude the interference of busbar and phase line, improve electromagnetic sealing effect.
Background technology
In recent years, with the continuous development of electric vehicle industry, motor driven systems as electric vehicle core component, by
In employing voltage source impulse modulation (PWM) control mode, the power electronic devices in frequency converter is operated on off state, du/
Dt, di/dt are larger, and switching voltage, electric current contain abundant higher hamonic wave, therefore the electromagnetic interference of motor driven systems
(EMI) problem seems especially prominent, and the serious normal work for affecting peripheral system.
Scholars in succession around the interference source of electric system, route of transmission and sensitive equipment, open by these three aspects thus
Theoretical and application technology research work has been opened up, and has achieved certain achievement.Generally include two classes：One kind is controlled by improving
System strategy reduces the interference strength of interference source with optimization circuit topological structure；Another kind of is to inhibit interference by wave filter
It propagates.
Chinese patent：Application publication number is CN204597906U, and data of publication of application is in August, 2015 utility model of 26 days
Patent discloses the electromagnetic interference electromagnetic interface filter in a kind of high power system, and including common mode inductance and multiple capacitances, this is common
Mould inductance includes at least one winding by flat copper bar coiling, one end of each winding respectively from the first different capacitances the
One end connects, and each winding and signal input part of the connecting pin of corresponding first capacitance as electromagnetic interface filter；Each winding
First end of the other end respectively from the second different capacitances is connected, and the connecting pin conduct of each winding and corresponding second capacitance
The signal output end of electromagnetic interface filter, each first capacitance, the second capacitance second end be grounded.Although the program reduces EMI
The volume of wave filter, but it is in application process, can have interference between busbar and phase line, so as to influence its filter effect.
Invention content
The purpose of the present invention is overcoming the problems, such as that interference can be generated between busbar of the existing technology and phase line, one is provided
Kind can exclude the electric machine controller electromagnetic interface filter of the interference between busbar and phase line.
In order to achieve the above object, technical scheme is as follows：
A kind of electric machine controller electromagnetic interface filter, the wave filter are dual chamber shielding construction, are set including housing, enclosure interior
No.1 cavity and No. two cavitys；
The No.1 cavity is internally provided with busbar common mode filtering circuit, the input terminal and motor of the busbar common mode filtering circuit
The high voltage supply interface of controller is connected, and the output terminal of busbar common mode filtering circuit is connected with power supply；
No. two cavitys are internally provided with phase line common mode filtering circuit, the input terminal and motor of the phase line common mode filtering circuit
Three interfaces of controller are connected, and the output terminal of phase line common mode filtering circuit is connected with three interfaces of motor.
The busbar common mode filtering circuit includes the first common mode inductance, the first capacitance, the second capacitance, third capacitance and the 4th
Capacitance, first common mode inductance include the first winding, the second winding, the input of first winding, output terminal respectively with electricity
Machine controller, power supply anode interface be connected, the input of the second winding, output terminal respectively with electric machine controller, power supply it is negative
Pole interface is connected, and one end of first capacitance is connected with the input terminal of the first winding, one end of the second capacitance and second
The input terminal of winding is connected, and one end of third capacitance is connected with the output terminal of the first winding, one end of the 4th capacitance and the
The output terminal of two windings is connected, the first capacitance, the second capacitance, third capacitance, the 4th capacitance the other end be grounded；
The phase line common mode filtering circuit include the second common mode inductance, the 5th capacitance, the 6th capacitance and the 7th capacitance, described second
Common mode inductance includes the tertiary winding, the 4th winding and the 5th winding, the input of the tertiary winding, output terminal respectively with motor control
Device processed, motor U end interfaces be connected, the input of the 4th winding, output terminal respectively with electric machine controller, the V end interfaces of motor
It is connected, the W end interfaces of the input, output terminal of the 5th winding respectively with electric machine controller, motor are connected, the 5th capacitance
One end be connected with the input terminal of the tertiary winding, one end of the 6th capacitance is connected with the input terminal of the 4th winding, the 7th electricity
One end of appearance is connected with the input terminal of the 5th winding, the 5th capacitance, the 6th capacitance, the 7th capacitance the other end be grounded.
The initial permeability of first common mode inductance is 90000, and the initial permeability of second common mode inductance is
30000, first capacitance, the second capacitance are 1 μ F, and the third capacitance, the 4th capacitance are 3.3 μ F, the 5th electricity
Appearance, the 6th capacitance, the 7th capacitance are 3.2nF.
Multiple input port, output port are provided on the outer wall of the housing, the input port, output port are all provided with
It puts in the same side of housing.
The input port, output port use EMC gland heads.
Its border of the bottom plate upper edge of the housing is provided with the external seam platform extended to housing.
The housing is internally provided with more high-voltage wiring harness, and one end of the high-voltage wiring harness passes through wire connection terminal and busbar
Common mode filtering circuit or phase line common mode filtering circuit are connected, the other end and electric machine controller, motor or the power supply of high-voltage wiring harness
It is connected.
Compared with prior art, beneficial effects of the present invention are：
1st, a kind of electric machine controller of the present invention is dual chamber shielding construction with electromagnetic interface filter, is set including housing, enclosure interior
No.1 cavity and No. two cavitys, No.1 cavity are internally provided with busbar common mode filtering circuit, and No. two cavitys are internally provided with
Phase line common mode filtering circuit, the design are complete by busbar common mode filtering circuit and phase line common mode filtering circuit using dual chamber structure
Isolation, effectively eliminates the interference between busbar and phase line, so as to ensure that filter effect.Therefore, the present invention effectively eliminates
Interference between busbar and phase line.
2nd, a kind of its border of bottom plate upper edge of electric machine controller electromagnetic interface filter middle casing of the present invention is provided with to housing
The seam platform of outside extension, wave filter is fixed on by wire connection terminal by the high-voltage wiring harness of electric machine controller, power supply, motor
It is interior, and input port, output port are connected the housing of the shielded layer of high-voltage wiring harness and wave filter using EMC gland heads, with
Upper design effectively improves its electromagnetic sealing effect so that the housing of wave filter formation closing.Therefore, present invention improves electromagnetism
Sealing effect.
3rd, a kind of electric machine controller of the present invention is arranged at the same of housing with input port, output port in electromagnetic interface filter
Side, the design can facilitate arrangement installation of the wave filter on vehicle.Therefore, the present invention is convenient for arrangement installation.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention.
Fig. 2 is the structure diagram of the present invention.
Fig. 3 is the side view of Fig. 2.
Fig. 4 is using the electric field intensity map before electromagnetic interface filter in embodiment 1.
Fig. 5 is using the electric field intensity map after electromagnetic interface filter in embodiment 1.
In figure：2, No. two housing 1, input port 11, output port 12, bottom plate 13, seam platform 14, No.1 cavity cavitys
3rd, busbar common mode filtering circuit 4, the first common mode inductance 41, the first winding 411, the second winding 412, first the 42, second electricity of capacitance
Hold 43, third capacitance 44, the 4th capacitance 45, phase line common mode filtering circuit 5, the second common mode inductance 51, the tertiary winding the 511, the 4th
512 and the 5th winding 513 of winding, the 5th capacitance 52, the 6th capacitance 53, the 7th capacitance 54, electric machine controller 6, motor 7, power supply
8th, high-voltage wiring harness 9, wire connection terminal 10.
Specific embodiment
The present invention is described in further detail with specific embodiment for explanation below in conjunction with the accompanying drawings.
Referring to Fig. 1 to Fig. 3, a kind of electric machine controller electromagnetic interface filter, the wave filter is dual chamber shielding construction, including
The No.1 cavity 2 and No. two cavitys 3 that housing 1,1 inside of housing are set；
The No.1 cavity 2 is internally provided with busbar common mode filtering circuit 4, the input terminal of the busbar common mode filtering circuit 4 with
The high voltage supply interface of electric machine controller 6 is connected, and the output terminal of busbar common mode filtering circuit 4 is connected with power supply 8；
No. two cavitys 3 are internally provided with phase line common mode filtering circuit 5, the input terminal of the phase line common mode filtering circuit 5 with
Three interfaces of electric machine controller 6 are connected, and the output terminal of phase line common mode filtering circuit 5 is connected with three interfaces of motor 7.
The busbar common mode filtering circuit 4 includes the first common mode inductance 41, the first capacitance 42, the second capacitance 43, third electricity
44 and the 4th capacitance 45 of appearance, first common mode inductance 41 include the first winding 411, the second winding 412, first winding
Anode interface of 411 input, output terminal respectively with electric machine controller 6, power supply 8 is connected, and the second winding 412 inputs, is defeated
Cathode interface of the outlet respectively with electric machine controller 6, power supply 8 is connected, one end of first capacitance 42 and the first winding 411
Input terminal be connected, one end of the second capacitance 43 is connected with the input terminal of the second winding 412, one end of third capacitance 44 with
The output terminal of first winding 411 is connected, and one end of the 4th capacitance 45 is connected with the output terminal of the second winding 412, the first electricity
Hold the 42, second capacitance 43, third capacitance 44, the 4th capacitance 45 the other end be grounded；
The phase line common mode filtering circuit 5 includes the second common mode inductance 51, the 5th capacitance 52, the 6th capacitance 53 and the 7th capacitance
54, second common mode inductance 51 includes the tertiary winding 511, the 4th winding 512 and the 5th winding 513, the tertiary winding 511
U end interfaces respectively with electric machine controller 6, motor 7 of input, output terminal be connected, the input of the 4th winding 512, output terminal
The V end interfaces with electric machine controller 6, motor 7 are connected respectively, and the input of the 5th winding 513, output terminal control respectively with motor
Device 6, motor 7 W end interfaces be connected, one end of the 5th capacitance 52 is connected with the input terminal of the tertiary winding 511, the 6th
One end of capacitance 53 is connected with the input terminal of the 4th winding 512, one end of the 7th capacitance 54 and the input terminal of the 5th winding 513
Be connected, the 5th capacitance 52, the 6th capacitance 53, the 7th capacitance 54 the other end be grounded.
The initial permeability of first common mode inductance 41 is 90000, the initial permeability of second common mode inductance 51
It is 30000, first capacitance 42, the second capacitance 43 are 1 μ F, and the third capacitance 44, the 4th capacitance 45 are 3.3 μ F,
5th capacitance 52, the 6th capacitance 53, the 7th capacitance 54 are 3.2nF.
Multiple input port 11, output port 12, the input port 11, output are provided on the outer wall of the housing 1
Port 12 is arranged at the same side of housing 1.
The input port 11, output port 12 use EMC gland heads.
Its border of 13 upper edge of bottom plate of the housing 1 is provided with the external seam platform 14 extended to housing 1.
The housing 1 is internally provided with more high-voltage wiring harness 9, and one end of the high-voltage wiring harness 9 passes through wire connection terminal 10
It is connected with busbar common mode filtering circuit 4 or phase line common mode filtering circuit 5, the other end and electric machine controller 6 of high-voltage wiring harness 9,
Motor 7 or power supply 8 are connected.
The principle of the present invention is described as follows：
The present invention provides a kind of propagation that can effectively inhibit interference, motor controls simple in structure, at low cost and easy for installation
Device is filtered with electromagnetic interface filter.The wave utensil have filtering frequency range it is wide（9KHz~30MHz）, good wave filtering effect, the insertion loss to noise
It is high（Insertion loss is up to 50dB）The characteristics of, and the Wen Sheng little of the wave filter, limit for height in use temperature range（- 25 ﹣ 130
℃）, operating current is big（150 ﹣ 400A）, easy for installation, can meet electric machine controller completely will to harsh use of wave filter
It asks, while meets the installation requirement of vehicle, can also general mode filter be replaced to use.
Embodiment 1：
Referring to Fig. 1 to Fig. 3, a kind of electric machine controller electromagnetic interface filter, the wave filter is dual chamber shielding construction, including housing
1st, the No.1 cavity 2 and No. two cavitys 3, its border of 13 upper edge of bottom plate of the housing 1 that 1 inside of housing is set are provided with to housing
The 1 external seam platform 14 extended is provided with multiple input port 11, output port 12, the input on the outer wall of housing 1
Port 11, output port 12 are arranged at the same side of housing 1 and using EMC gland heads, the inside of the No.1 cavity 2 is set
Busbar common mode filtering circuit 4 and Duo Gen high-voltage wiring harness 9 are equipped with, No. two cavitys 3 are internally provided with phase line common mode filtering electricity
Road 5 and Duo Gen high-voltage wiring harness 9, the busbar common mode filtering circuit 4 include the first common mode inductance 41, first the 42, second electricity of capacitance
Hold 43,44 and the 4th capacitance 45 of third capacitance, first common mode inductance 41 includes the first winding 411, the second winding 412, institute
It states between the input terminal of the first winding 411 and the anode interface of electric machine controller 6, the output terminal of the first winding 411 and power supply 8
Between anode interface, between the cathode interface of the input terminal of the second winding 412 and electric machine controller 6, the output of the second winding 412
End the cathode interface of power supply 8 between pass sequentially through wire connection terminal 10, high-voltage wiring harness 9 is connected, first capacitance 42
One end is connected with the input terminal of the first winding 411, and one end of the second capacitance 43 is connected with the input terminal of the second winding 412,
One end of third capacitance 44 is connected with the output terminal of the first winding 411, and one end of the 4th capacitance 45 is defeated with the second winding 412
Outlet is connected, the first capacitance 42, the second capacitance 43, third capacitance 44, the 4th capacitance 45 the other end be grounded, the phase line
Common mode filtering circuit 5 includes the second common mode inductance 51, the 5th capacitance 52, the 6th capacitance 53 and the 7th capacitance 54, and described second is common
Mould inductance 51 includes the tertiary winding 511, the 4th winding 512 and the 5th winding 513, input terminal and the electricity of the tertiary winding 511
Between the U end interfaces of machine controller 6, between the U end interfaces of the output terminal of the tertiary winding 511 and motor 7, the 4th winding 512
Between input terminal and the V end interfaces of electric machine controller 6, between the V end interfaces of the output terminal of the 4th winding 512 and motor 7, the 5th
Between the input terminal of winding 513 and the W end interfaces of electric machine controller 6, the W end interfaces of the output terminal of the 5th winding 513 and motor 7
Between pass sequentially through wire connection terminal 10, high-voltage wiring harness 9 is connected, one end of the 5th capacitance 52 and the tertiary winding 511
Input terminal is connected, and one end of the 6th capacitance 53 is connected with the input terminal of the 4th winding 512, one end of the 7th capacitance 54 and the
The input terminal of five windings 513 is connected, the 5th capacitance 52, the 6th capacitance 53, the 7th capacitance 54 the other end be grounded, and first
The initial permeability of common mode inductance 41 is 90000, and the initial permeability of the second common mode inductance 51 is 30000, the first capacitance 42, the
Two capacitances 43 are 1 μ F, and third capacitance 44, the 4th capacitance 45 are 3.3 μ F, the 5th capacitance 52, the 6th capacitance 53, the 7th capacitance
54 be 3.2nF.
For the filter effect of the detection present invention, by electromagnetic interface filter described in the present embodiment for complete vehicle test, investigate and use
The forward and backward electric field change of electromagnetic interface filter, is as a result shown in Fig. 4, Fig. 5.
It is not difficult to find out by comparing, electromagnetic interface filter described in the present embodiment shows good filter effect.
Claims (7)
1. a kind of electric machine controller electromagnetic interface filter, it is characterised in that：
The wave filter is dual chamber shielding construction, including housing（1）, housing（1）The No.1 cavity of inside setting（2）With No. two
Cavity（3）；
The No.1 cavity（2）Be internally provided with busbar common mode filtering circuit（4）, the busbar common mode filtering circuit（4）It is defeated
Enter end and electric machine controller（6）High voltage supply interface be connected, busbar common mode filtering circuit（4）Output terminal and power supply（8）
It is connected；
No. two cavitys（3）Be internally provided with phase line common mode filtering circuit（5）, the phase line common mode filtering circuit（5）It is defeated
Enter end and electric machine controller（6）Three interfaces be connected, phase line common mode filtering circuit（5）Output terminal and motor（7）Three
Interfaces are connected.
2. a kind of electric machine controller electromagnetic interface filter according to claim 1, it is characterised in that：
The busbar common mode filtering circuit（4）Including the first common mode inductance（41）, the first capacitance（42）, the second capacitance（43）,
Three capacitances（44）With the 4th capacitance（45）, first common mode inductance（41）Including the first winding（411）, the second winding（412）,
First winding（411）Input, output terminal respectively with electric machine controller（6）, power supply（8）Anode interface be connected,
Two windings（412）Input, output terminal respectively with electric machine controller（6）, power supply（8）Cathode interface be connected, described first
Capacitance（42）One end and the first winding（411）Input terminal be connected, the second capacitance（43）One end and the second winding（412）
Input terminal be connected, third capacitance（44）One end and the first winding（411）Output terminal be connected, the 4th capacitance（45）'s
One end and the second winding（412）Output terminal be connected, the first capacitance（42）, the second capacitance（43）, third capacitance（44）, the 4th
Capacitance（45）The other end be grounded；
The phase line common mode filtering circuit（5）Including the second common mode inductance（51）, the 5th capacitance（52）, the 6th capacitance（53）With
Seven capacitances（54）, second common mode inductance（51）Including the tertiary winding（511）, the 4th winding（512）With the 5th winding
（513）, the tertiary winding（511）Input, output terminal respectively with electric machine controller（6）, motor（7）U end interfaces be connected
It connects, the 4th winding（512）Input, output terminal respectively with electric machine controller（6）, motor（7）V end interfaces be connected, the 5th
Winding（513）Input, output terminal respectively with electric machine controller（6）, motor（7）W end interfaces be connected, the 5th capacitance
（52）One end and the tertiary winding（511）Input terminal be connected, the 6th capacitance（53）One end and the 4th winding（512）It is defeated
Enter end to be connected, the 7th capacitance（54）One end and the 5th winding（513）Input terminal be connected, the 5th capacitance（52）, the 6th
Capacitance（53）, the 7th capacitance（54）The other end be grounded.
3. a kind of electric machine controller electromagnetic interface filter according to claim 2, it is characterised in that：The first common mode electricity
Sense（41）Initial permeability for 90000, second common mode inductance（51）Initial permeability for 30000, first electricity
Hold（42）, the second capacitance（43）It is 1 μ F, the third capacitance（44）, the 4th capacitance（45）It is 3.3 μ F, the described 5th is electric
Hold（52）, the 6th capacitance（53）, the 7th capacitance（54）It is 3.2nF.
4. a kind of electric machine controller electromagnetic interface filter according to any one of claim 1 ﹣ 3, it is characterised in that：It is described
Housing（1）Outer wall on be provided with multiple input port（11）, output port（12）, the input port（11）, output port
（12）It is arranged at housing（1）The same side.
5. a kind of electric machine controller electromagnetic interface filter according to claim 4, it is characterised in that：The input port
（11）, output port（12）Use EMC gland heads.
6. a kind of electric machine controller electromagnetic interface filter according to any one of claim 1 ﹣ 3, it is characterised in that：It is described
Housing（1）Bottom plate（13）Its border of upper edge is provided with to housing（1）The external seam platform extended（14）.
7. a kind of electric machine controller electromagnetic interface filter according to any one of claim 1 ﹣ 3, it is characterised in that：It is described
Housing（1）Be internally provided with more high-voltage wiring harness（9）, the high-voltage wiring harness（9）One end pass through wire connection terminal（10）With mother
Line common mode filtering circuit（4）Or phase line common mode filtering circuit（5）It is connected, high-voltage wiring harness（9）The other end and electric machine controller
（6）, motor（7）Or power supply（8）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460187.3A CN108183604A (en) | 2017-12-28 | 2017-12-28 | A kind of electric machine controller electromagnetic interface filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460187.3A CN108183604A (en) | 2017-12-28 | 2017-12-28 | A kind of electric machine controller electromagnetic interface filter |
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| Publication Number | Publication Date |
|---|---|
| CN108183604A true CN108183604A (en) | 2018-06-19 |
Family
ID=62548363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711460187.3A Pending CN108183604A (en) | 2017-12-28 | 2017-12-28 | A kind of electric machine controller electromagnetic interface filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110661441A (en) * | 2018-06-28 | 2020-01-07 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
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| JP2011223667A (en) * | 2010-04-06 | 2011-11-04 | Toshiba Corp | System interconnection inverter |
| CN102624354A (en) * | 2012-04-26 | 2012-08-01 | 成都必控科技股份有限公司 | EMI (Electro-Magnetic Interference) filter capable of inhibiting conducted emission and radiated emission |
| US20170207763A1 (en) * | 2016-01-14 | 2017-07-20 | Regal Beloit America, Inc. | Methods and systems for reducing conducted electromagnetic interference |
| CN207868991U (en) * | 2017-12-28 | 2018-09-14 | 东风商用车有限公司 | A kind of electric machine controller electromagnetic interface filter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2007181341A (en) * | 2005-12-28 | 2007-07-12 | Yaskawa Electric Corp | Converter device |
| US7276859B1 (en) * | 2006-09-28 | 2007-10-02 | Osram Sylvania Inc. | Three-phase electronic ballast with improved three-phase EMI filter |
| JP2011223667A (en) * | 2010-04-06 | 2011-11-04 | Toshiba Corp | System interconnection inverter |
| CN102624354A (en) * | 2012-04-26 | 2012-08-01 | 成都必控科技股份有限公司 | EMI (Electro-Magnetic Interference) filter capable of inhibiting conducted emission and radiated emission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110661441A (en) * | 2018-06-28 | 2020-01-07 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
| CN110661441B (en) * | 2018-06-28 | 2021-10-22 | 比亚迪汽车工业有限公司 | Electric automobile and motor controller for electric automobile |
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