CN105207562B - A kind of urban railway transit train traction electric machine control method - Google Patents
A kind of urban railway transit train traction electric machine control method Download PDFInfo
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- CN105207562B CN105207562B CN201510580077.5A CN201510580077A CN105207562B CN 105207562 B CN105207562 B CN 105207562B CN 201510580077 A CN201510580077 A CN 201510580077A CN 105207562 B CN105207562 B CN 105207562B
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Abstract
The invention discloses a kind of urban railway transit train traction electric machine control methods, the control method acquires the three-phase current of permanent magnet synchronous motor 1 by current detector, the magneto 1 detected respectively by three position signal detectors, the rotor-position signal of magneto 2 and magneto 3 is calculated three motor synchronous rotor position signals, according to magneto 1, the whether complete equal determination for carrying out current controller d-q axis to constant current of the rotor-position signal of magneto 2 and magneto 3, come finally by inverter while controlling magneto 1, magneto 2 and magneto 3 follow Setting signal to run.The present invention have efficiently, it is low cost, energy saving, control is simple and practicable, and reliability is high, driveability more preferably the advantages that.
Description
Technical field
The present invention relates to the fields of electric machines control technology, more particularly, to a kind of urban railway transit train traction electric machine
Control method.
Background technology
As Urbanization in China steps into new developing stage, " trip is difficult " has become city dweller's focus of attention
Problem.Since urban track traffic has many advantages, such as that big freight volume, safety, punctual, quick, comfortable and pollution are small, establish with track
Transportation system based on traffic is the important channel for solving Urban Traffic Jam Based.Therefore, urban track traffic is existing
The important vehicles in generationization city and infrastructure.
But train is not high enough using different machine motor drive efficiency at present, power density is not high enough, shared volume is larger, drives
Dynamic performance need to be improved, or is driven respectively to single motor using multiple inverters, spends cost excessively high, and reliability is lower,
Control is complicated.
Invention content
The purpose of the present invention is overcoming drawbacks described above existing in the prior art, a kind of urban railway transit train use is provided
Traction electric machine control method, makes it have efficient, inexpensive, energy saving, and control is simple and practicable, and reliability is high, and driveability is more preferably
The advantages that.
To achieve the goals above, the present invention provides a kind of urban railway transit train traction electric machine control method,
Steps are as follows for this method：
(1) the three-phase current i of magneto 1 is acquired by current detectora、ib、ic, then it is become by abc/dq
Parallel operation obtains the actual current value i under d-q coordinate systemsdAnd iq；
(2) turning for magneto 1, magneto 2 and magneto 3 is detected respectively by three position signal detectors
Sub- position signal θ1、θ2、θ3, it is θ to enable three motor synchronous rotor position signals, according to θ2-θ1Whether θ is more than3-θ1Carry out three motors
The determination of synchronous rotor position signal θ, works as θ2-θ1More than θ3-θ1When, thenWork as θ2-θ1No more than θ3-θ1
When, thenThen θ is sent into abc/dq converters and current controller；
(3) according to θ1、θ2、θ3It is whether complete equal, it carries out current controller d-q axis and gives constant current id *And iq *Determination, when
θ1、θ2、θ3When complete equal, then id *=0, iq *For constant, work as θ1、θ2、θ3When not all equal, then id *For constant, iq *=0；
(4) by actual current id、iqWith obtain give constant current id *、iq *And three motor synchronous rotor position signal θ give
Enter current controller to be controlled, is then re-fed into dq/abc converters and is coordinately transformed, then by inverter come same time control
Magneto 1, magneto 2 and magneto 3 processed follow Setting signal to run.
Compared with prior art, main advantage of the invention is：
A kind of urban railway transit train traction electric machine control method disclosed by the invention, is acquired by current detector
The three-phase current of permanent magnet synchronous motor 1, the magneto 1 detected respectively by three position signal detectors, magneto 2
Three motor synchronous rotor position signals are calculated with the rotor-position signal of magneto 3, according to magneto 1, permanent magnetism
The whether complete equal determination for carrying out current controller d-q axis to constant current of the rotor-position signal of motor 2 and magneto 3, most
Setting signal is followed to run to control magneto 1, magneto 2 and magneto 3 simultaneously by inverter afterwards.The present invention has
Have efficient, inexpensive, energy saving, control is simple and practicable, and reliability is high, driveability more preferably the advantages that.
Description of the drawings
Fig. 1 is a kind of urban railway transit train traction electric machine control method functional block diagram.
Specific implementation mode
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing, more so as to those skilled in the art
Understand the present invention well.
As shown in Figure 1, being a kind of the specific of urban railway transit train traction electric machine control method of the present invention
Embodiment, specific implementation step are：
(1) the three-phase current i of magneto 1 is acquired by current detectora、ib、ic, then it is become by abc/dq
Parallel operation obtains the actual current value i under d-q coordinate systemsdAnd iq；
(2) turning for magneto 1, magneto 2 and magneto 3 is detected respectively by three position signal detectors
Sub- position signal θ1、θ2、θ3, it is θ to enable three motor synchronous rotor position signals, according to θ2-θ1Whether θ is more than3-θ1Carry out three motors
The determination of synchronous rotor position signal θ, works as θ2-θ1More than θ3-θ1When, thenWork as θ2-θ1No more than θ3-θ1
When, thenThen θ is sent into abc/dq converters and current controller；
(3) according to θ1、θ2、θ3It is whether complete equal, it carries out current controller d-q axis and gives constant current id *And iq *Determination, when
θ1、θ2、θ3When complete equal, then id *=0, iq *For constant, work as θ1、θ2、θ3When not all equal, then id *For constant, iq *=0；
(4) by actual current id、iqWith obtain give constant current id *、iq *And three motor synchronous rotor position signal θ give
Enter current controller to be controlled, is then re-fed into dq/abc converters and is coordinately transformed, then by inverter come same time control
Magneto 1, magneto 2 and magneto 3 processed follow Setting signal to run.
Embodiment of above is merely illustrative of the invention's technical idea, and protection scope of the present invention cannot be limited with this, all
It is any change done on the basis of technical solution according to technological thought proposed by the present invention, each falls within present invention protection model
Within enclosing.
Claims (1)
1. a kind of urban railway transit train traction electric machine control method, which is characterized in that include the following steps：
(1) the three-phase current i of magneto 1 is acquired by current detectora、ib、ic, it is then passed through into abc/dq converters
Obtain the actual current value i under d-q coordinate systemsdAnd iq；
(2) the rotor position of magneto 1, magneto 2 and magneto 3 is detected respectively by three position signal detectors
Confidence θ1、θ2、θ3, it is θ to enable three motor synchronous rotor position signals, according to θ2-θ1Whether θ is more than3-θ1Carry out three motor synchronizations
The determination of rotor-position signal θ, works as θ2-θ1More than θ3-θ1When, thenWork as θ2-θ1No more than θ3-θ1When,
ThenThen θ is sent into abc/dq converters and current controller；
(3) according to θ1、θ2、θ3It is whether complete equal, it carries out current controller d-q axis and gives constant current id *And iq *Determination, work as θ1、θ2、
θ3When complete equal, then id *=0, iq *For constant, work as θ1、θ2、θ3When not all equal, then id *For constant, iq *=0；
(4) by actual current id、iqWith obtain give constant current id *、iq *And three motor synchronous rotor position signal θ be sent into electricity
Stream controller is controlled, and is then re-fed into dq/abc converters and is coordinately transformed, then is controlled forever simultaneously by inverter
Magneto 1, magneto 2 and magneto 3 follow Setting signal to run.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510580077.5A CN105207562B (en) | 2015-09-13 | 2015-09-13 | A kind of urban railway transit train traction electric machine control method |
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| CN201510580077.5A CN105207562B (en) | 2015-09-13 | 2015-09-13 | A kind of urban railway transit train traction electric machine control method |
Publications (2)
| Publication Number | Publication Date |
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| CN105207562A CN105207562A (en) | 2015-12-30 |
| CN105207562B true CN105207562B (en) | 2018-10-30 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105811813B (en) * | 2016-03-29 | 2018-11-13 | 中车永济电机有限公司 | A kind of subway permanent magnet synchronous motor traction convertor main circuit |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU664786B2 (en) * | 1993-01-21 | 1995-11-30 | Fujitsu General Limited | Control device for air conditioner |
| JP2007116812A (en) * | 2005-10-19 | 2007-05-10 | Fuji Heavy Ind Ltd | Inverter motor test device |
| CN100413207C (en) * | 2006-11-17 | 2008-08-20 | 清华大学 | Vector control system of alien frequencies power supplied permanent magnet synchronous motor |
| CN101783633A (en) * | 2010-03-12 | 2010-07-21 | 江苏金方圆数控机床有限公司 | Coaxial drive system for two permanent magnet synchronous motors |
| CN102355176A (en) * | 2011-09-16 | 2012-02-15 | 苏州生物医学工程技术研究所 | Dual-motor synchronous control system and implementation method |
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