CN202957781U - Control device for reducing heating of rotor of permanent magnet synchronous motor - Google Patents

Control device for reducing heating of rotor of permanent magnet synchronous motor Download PDF

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Publication number
CN202957781U
CN202957781U CN2012206887369U CN201220688736U CN202957781U CN 202957781 U CN202957781 U CN 202957781U CN 2012206887369 U CN2012206887369 U CN 2012206887369U CN 201220688736 U CN201220688736 U CN 201220688736U CN 202957781 U CN202957781 U CN 202957781U
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CN
China
Prior art keywords
synchronous motor
wire
control device
permanent magnet
magnet synchronous
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.)
Expired - Lifetime
Application number
CN2012206887369U
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Chinese (zh)
Inventor
徐致雄
张锐
狄俊
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.)
Xi'an Invt And Hesheng Power Technology Co ltd
Original Assignee
XI'AN INVT AND HESHENG POWER TECHNOLOGY Co Ltd
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.)
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Publication date
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Priority to CN2012206887369U priority Critical patent/CN202957781U/en
Application granted granted Critical
Publication of CN202957781U publication Critical patent/CN202957781U/en
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Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a control device for reducing the heating of a rotor of a permanent magnet synchronous motor. The control device comprises a frequency conversion controller and a wire which is connected with the frequency conversion controller and the permanent magnet synchronous motor; an electric reactor is arranged on the wire; the output end of the frequency conversion controller is connected with the input end of the electric reactor by the wire; and the output end of the electric reactor is connected with the input end of the permanent magnet synchronous motor by the wire. The control device is reasonable in design and simple in structure and can be used for smoothing filtering, so that the noise of the motor, eddy-current loss and leakage current caused by input higher harmonics are reduced, transient voltage dv/dt is reduced, the service life of the motor is prolonged, power switching elements inside a frequency converter is protected, and the calorific value of the rotor of the permanent magnet synchronous motor is reduced finally.

Description

A kind of control device for reducing the permanent-magnetic synchronous motor rotor heating
Technical field
The utility model belongs to technical field of motors, is specifically related to a kind of control device for reducing the permanent-magnetic synchronous motor rotor heating.
Background technology
In the permagnetic synchronous motor control field, traditional way is the driving that the mode that is connected in series by cable and frequency-variable controller realizes permagnetic synchronous motor.Although this method is simple, the rotor heating amount of permagnetic synchronous motor is larger at work, and motor noise is large, and eddy current loss is large, and the leakage current that the input high order harmonic component causes is high, and transient voltage dv/dt is large, has a strong impact on the useful life of permagnetic synchronous motor.In addition, the device for power switching of frequency converter inside is hit greatly, and the greatest drawback of above-mentioned traditional control way is that rotor heating is large, and efficiency is low.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of control device for reducing the permanent-magnetic synchronous motor rotor heating is provided.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of control device for reducing the permanent-magnetic synchronous motor rotor heating, comprise frequency-variable controller with for being connected the wire of frequency-variable controller and permagnetic synchronous motor, it is characterized in that: on described wire, be provided with reactor, the output of described frequency-variable controller is connected with the input of reactor by wire, and the output of reactor is connected with the input of permagnetic synchronous motor by wire.
Above-mentioned a kind of control device for reducing the permanent-magnetic synchronous motor rotor heating, it is characterized in that: described reactor is output type inductance type reactor.
The utility model compared with prior art has the following advantages:
(1) the utility model is reasonable in design, simple in structure;
(2) change the connection scheme of frequency-variable controller and permagnetic synchronous motor, thereby reduced the noise, eddy current loss of motor and the leakage current that the input high order harmonic component causes, can be used for smothing filtering, reduced transient voltage dv/dt, extended motor useful life;
(3) device for power switching of protection frequency converter inside, finally reduced the permanent-magnetic synchronous motor rotor heating.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
1-frequency-variable controller; 2-permagnetic synchronous motor; 3-reactor;
4-wire.
Embodiment
As shown in Figure 1, the utility model comprise frequency-variable controller 1 with for being connected the wire 4 of frequency-variable controller 1 and permagnetic synchronous motor 2, be provided with reactor 3 on described wire 4, the output of described frequency-variable controller 1 is connected with the input of reactor 3 by wire 4, and the output of reactor 3 is connected with the input of permagnetic synchronous motor 2 by wire 4.
Described reactor 3 is output type inductance type reactor.
When the utility model is worked, frequency-variable controller 1 output current is except given frequency, also be accompanied by high order harmonic component, and high order harmonic component is the key factor that rotor heating, motor noise are increased, when frequency-variable controller 1 output current passes through reactor 3, just passed through the electric current of given frequency, and high order harmonic component has been filtered out by reactor 3, make like this electric current of supplying with motor become pure, the rotor heating amount of permagnetic synchronous motor reduces, reduce the noise of motor, reduce eddy current loss; Reduce the leakage current that the input high order harmonic component causes; For smothing filtering, reduce transient voltage dv/dt, extend electrical machinery life; The device for power switching of protection frequency converter inside.

Claims (2)

1. the control device for reducing permanent-magnetic synchronous motor rotor heating, comprise frequency-variable controller (1) with for being connected the wire (4) of frequency-variable controller (1) and permagnetic synchronous motor (2), it is characterized in that: be provided with reactor (3) on described wire (4), the output of described frequency-variable controller (1) is connected with the input of reactor (3) by wire (4), and the output of reactor (3) is connected with the input of permagnetic synchronous motor (2) by wire (4).
2. according to a kind of control device for reducing the permanent-magnetic synchronous motor rotor heating claimed in claim 1, it is characterized in that: described reactor (3) is output type inductance type reactor.
CN2012206887369U 2012-12-13 2012-12-13 Control device for reducing heating of rotor of permanent magnet synchronous motor Expired - Lifetime CN202957781U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012206887369U CN202957781U (en) 2012-12-13 2012-12-13 Control device for reducing heating of rotor of permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012206887369U CN202957781U (en) 2012-12-13 2012-12-13 Control device for reducing heating of rotor of permanent magnet synchronous motor

Publications (1)

Publication Number Publication Date
CN202957781U true CN202957781U (en) 2013-05-29

Family

ID=48463331

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012206887369U Expired - Lifetime CN202957781U (en) 2012-12-13 2012-12-13 Control device for reducing heating of rotor of permanent magnet synchronous motor

Country Status (1)

Country Link
CN (1) CN202957781U (en)

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C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Assignor: XI AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Contract record no.: 2014610000152

Denomination of utility model: Control device for reducing heating of rotor of permanent magnet synchronous motor

Granted publication date: 20130529

License type: Exclusive License

Record date: 20140929

LICC Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model
C56 Change in the name or address of the patentee

Owner name: XI'AN INVT ELECTRIC MACHINERY CO., LTD.

Free format text: FORMER NAME: XI'AN INVT AND HESHENG POWER TECHNOLOGY CO., LTD.

CP03 Change of name, title or address

Address after: 710077 Shaanxi Province, Xi'an Yanta District Industrial Park, Yu Hua Road No. 55 standard workshop No. 6 group north room unit 201

Patentee after: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Address before: 710075 North Zone, No. 66, Kam Yip Road, Xi'an hi tech Development Zone, Shaanxi, B

Patentee before: XI AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Control device for reducing heating of rotor of permanent magnet synchronous motor

Effective date of registration: 20150410

Granted publication date: 20130529

Pledgee: SHENZHEN INVT CONTROL TECHNOLOGY Co.,Ltd.

Pledgor: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Registration number: 2015990000280

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20161104

Granted publication date: 20130529

Pledgee: SHENZHEN INVT CONTROL TECHNOLOGY Co.,Ltd.

Pledgor: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Registration number: 2015990000280

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: Control device for reducing heating of rotor of permanent magnet synchronous motor

Effective date of registration: 20161109

Granted publication date: 20130529

Pledgee: SHENZHEN INVT CONTROL TECHNOLOGY Co.,Ltd.

Pledgor: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Registration number: 2016440020012

PLDC Enforcement, change and cancellation of contracts on pledge of patent right or utility model
PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20200319

Granted publication date: 20130529

Pledgee: SHENZHEN INVT CONTROL TECHNOLOGY Co.,Ltd.

Pledgor: XI'AN INVT AND HESHENG POWER TECHNOLOGY Co.,Ltd.

Registration number: 2016440020012

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20130529