CN103248305B - For the method for two synchronous coordinate system vector control of Electric Machine Control - Google Patents
For the method for two synchronous coordinate system vector control of Electric Machine Control Download PDFInfo
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- CN103248305B CN103248305B CN201210029682.XA CN201210029682A CN103248305B CN 103248305 B CN103248305 B CN 103248305B CN 201210029682 A CN201210029682 A CN 201210029682A CN 103248305 B CN103248305 B CN 103248305B
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Abstract
The invention provides a kind of motor control method, such as may be used for the alternating current machine such as asynchronous machine, synchronous machine, the method adopts two synchronous coordinate system, described method comprises: for the sinusoidal signal of several different frequency, different amplitude, respectively coordinate transform is carried out to them, under transforming to respective synchronous coordinate system, the sinusoidal signal of several different frequency, different amplitude is converted to DC quantity respectively, thus can controls respectively them easily.The motor control method that the embodiment of the present invention provides can realize two synchronous coordinate system and control.
Description
Technical field
The present invention relates to motor technology, particularly a kind of two synchronous coordinate system vector control methods for Electric Machine Control.
Background technology
Dynamic mathematical models due to motor are multivariable systems of a high-order, non-linear, close coupling.Engineer proposed Vector Control System of Induction Motor theory and solved alternating current machine direct torque problem the seventies in last century.The general principle that vector control realizes is by measuring and controlling asynchronous motor stator current phasor, controls respectively according to field orientation principle to the exciting current of asynchronous motor and torque current, thus reaches the object controlling induction motors torque.
Current, the vector control of alternating current machine, adopts single synchronous coordinate system usually, cannot meet the needs of complicated practical application sometimes.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of method of the two synchronous coordinate system vector control for Electric Machine Control.
The invention provides a kind of motor control method, such as, may be used for the alternating current machine such as asynchronous machine, synchronous machine, the method adopts two synchronous coordinate system, and described method comprises:
For the sinusoidal signal of several different frequency, different amplitude, respectively coordinate transform is carried out to them, under transforming to respective synchronous coordinate system, the sinusoidal signal of several different frequency, different amplitude is converted to DC quantity respectively, thus can controls respectively them easily.
The motor control method that the embodiment of the present invention provides can realize two synchronous coordinate system and control.
Accompanying drawing explanation
Further feature of the present invention, feature, advantage and benefit are by by becoming more apparent below in conjunction with the detailed description of accompanying drawing.Wherein:
Fig. 1 shows the schematic flow sheet of two synchronous coordinate systems of one embodiment of the invention.
Embodiment
Below, embodiments of the invention will be described in detail by reference to the accompanying drawings.
As shown in Figure 1, be a specific embodiment of the present invention, for two synchronous coordinate system vector control of alternating current machine, the current waveform of motor comprises fundametal compoment 1 and multiple harmonic component, and wherein the harmonic content of certain subharmonic is comparatively large, then set this subharmonic as 2.The harmonic content of such as certain subharmonic is greater than a predetermined value, then set this subharmonic as 2.As shown in Figure 1, respectively fundametal compoment 1 and particular harmonic 2 are controlled.This method comprises:
Step 1, for fundametal compoment 1, detect the three-phase voltage u of fundametal compoment 1
1a, u
1b, u
1c, three-phase current i
1a, i
1b, i
1c, by ABC/ α β coordinate transform, three-phase voltage, three-phase current are transformed to respectively two-phase static α β coordinate system, obtain voltage u
1 α, u
1 β, current i
1 α, i
1 β;
Step 2, according to voltage u
1 α, u
1 β, current i
1 α, i
1 βmake flux linkage observation, obtain rotor flux amplitude | ψ
r| with rotor flux angle θ;
Step 3, by current i
1 α, i
1 βaccording to angle θ, do α β/dq coordinate transform, by current transformation to two-phase synchronous rotary dq coordinate system, obtain i
1d, i
1q.
Step 4, simultaneously, by rotational speed setup
with measurement rotational speed omega
rdiffer from, exported by adjuster closed loop and obtain
rotor flux is given
with the aforementioned rotor flux amplitude obtained | ψ
r| poor, exported by adjuster closed loop and obtain
Step 5, aforementioned currents is given
i is detected with aforementioned currents
1ddiffer from, exported by adjuster closed loop and obtain u
1d; Aforementioned currents is given
i is detected with aforementioned currents
1qdiffer from, exported by adjuster closed loop and obtain u
1q.
Step 6, by u
1d, u
1qaccording to angle θ, do dq/ABC coordinate transform, transformed in three phase static ABC coordinate system, obtain the u exported
1a, u
1b, u
1c.
Optionally, the present embodiment can also comprise:
Step 7, for particular harmonic 2, detect its three-phase current i
2a, i
2b, i
2c, by three-phase current according to angle
do ABC/dq coordinate transform, under transforming to two-phase synchronous rotary dq coordinate system, obtain i
2dand i
2q, wherein, ω
2for the angular frequency of this harmonic wave,
for the initial phase angle of this harmonic wave.
Step 8, by given value of current
i is detected with aforementioned currents
2ddiffer from, exported by adjuster closed loop and obtain u
2d; By given value of current
i is detected with aforementioned currents
2qdiffer from, exported by adjuster closed loop and obtain u
2q, wherein two given value of currents
with
by artificially given, such as usually can to being 0.
Step 9, by u
2d, u
2qaccording to angle
do dq/ABC coordinate transform, transformed in three phase static ABC coordinate system, obtain the u exported
2a, u
2b, u
2c.
The motor control method that the embodiment of the present invention provides can realize two synchronous coordinate system and control.
Claims (1)
1., for a method for two synchronous coordinate system vector control of Electric Machine Control, it is characterized in that, comprising:
For fundametal compoment 1, detect the three-phase voltage u of fundametal compoment 1
1a, u
1b, u
1c, three-phase current i
1a, i
1b, i
1c, by ABC/ α β coordinate transform, three-phase voltage, three-phase current are transformed to respectively two-phase static α β coordinate system, obtain voltage u
1 α, u
1 β, current i
1 α, i
1 β;
According to voltage u
1 α, u
1 β, current i
1 α, i
1 βmake flux linkage observation, obtain rotor flux amplitude | ψ
r| with rotor flux angle θ;
By current i
1 α, i
1 βaccording to angle θ, do α β/dq coordinate transform, by current transformation to two-phase synchronous rotary dq coordinate system, obtain i
1d, i
1q;
Meanwhile, by rotational speed setup
with measurement rotational speed omega
rdiffer from, exported by adjuster closed loop and obtain
rotor flux is given
with the aforementioned rotor flux amplitude obtained | ψ
r| poor, exported by adjuster closed loop and obtain
Aforementioned currents is given
i is detected with aforementioned currents
1ddiffer from, exported by adjuster closed loop and obtain u
1d; Aforementioned currents is given
i is detected with aforementioned currents
1qdiffer from, exported by adjuster closed loop and obtain u
1q;
By u
1d, u
1qaccording to angle θ, do dq/ABC coordinate transform, transformed in three phase static ABC coordinate system, obtain the u exported
1a, u
1b;
For particular harmonic 2, detect its three-phase current i
2a, i
2b, i
2c, by three-phase current according to angle
do ABC/dq coordinate transform, under transforming to two-phase synchronous rotary dq coordinate system, obtain i
2dand i
2q, wherein, ω
2for the angular frequency of this harmonic wave,
for the initial phase angle of this harmonic wave;
By given value of current
i is detected with aforementioned currents
2ddiffer from, exported by adjuster closed loop and obtain u
2d; By given value of current
i is detected with aforementioned currents
2qdiffer from, exported by adjuster closed loop and obtain u
2q, wherein two given value of currents
with
by artificially given;
By u
2d, u
2qaccording to angle
do dq/ABC coordinate transform, transformed in three phase static ABC coordinate system, obtain the u exported
2a, u
2b, u
2c.
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|---|---|---|---|
| CN201210029682.XA CN103248305B (en) | 2012-02-10 | 2012-02-10 | For the method for two synchronous coordinate system vector control of Electric Machine Control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210029682.XA CN103248305B (en) | 2012-02-10 | 2012-02-10 | For the method for two synchronous coordinate system vector control of Electric Machine Control |
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| Publication Number | Publication Date |
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| CN103248305A CN103248305A (en) | 2013-08-14 |
| CN103248305B true CN103248305B (en) | 2016-01-20 |
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| CN109921705A (en) * | 2019-01-16 | 2019-06-21 | 苏州英威腾电力电子有限公司 | A kind of multi-phase motor control method and device |
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| CN1392664A (en) * | 2001-06-20 | 2003-01-22 | Lg电子株式会社 | Motor speed controller |
| KR100371371B1 (en) * | 2000-08-19 | 2003-02-06 | 엘지산전 주식회사 | Vector control apparatus for induction motor |
| CN101013876A (en) * | 2007-02-01 | 2007-08-08 | 上海交通大学 | Voltage decoupling variable-frequency control vector controlling method with parameter self-regulating function |
| CN102088265A (en) * | 2011-03-08 | 2011-06-08 | 东南大学 | Method for restraining torque ripple of permanent magnet motor based on direct torque control |
| CN102244497A (en) * | 2011-07-08 | 2011-11-16 | 大禹电气科技股份有限公司 | Frequency conversion control method and device |
| CN102255598A (en) * | 2011-06-27 | 2011-11-23 | 浙江大学 | Method for controlling electronic pole inversion of multiphase induction motor on basis of vector control |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100655702B1 (en) * | 2004-12-20 | 2006-12-11 | 현대자동차주식회사 | Control method for permanent magnet synchronous motor and control system thereof |
-
2012
- 2012-02-10 CN CN201210029682.XA patent/CN103248305B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100371371B1 (en) * | 2000-08-19 | 2003-02-06 | 엘지산전 주식회사 | Vector control apparatus for induction motor |
| CN1392664A (en) * | 2001-06-20 | 2003-01-22 | Lg电子株式会社 | Motor speed controller |
| CN101013876A (en) * | 2007-02-01 | 2007-08-08 | 上海交通大学 | Voltage decoupling variable-frequency control vector controlling method with parameter self-regulating function |
| CN102088265A (en) * | 2011-03-08 | 2011-06-08 | 东南大学 | Method for restraining torque ripple of permanent magnet motor based on direct torque control |
| CN102255598A (en) * | 2011-06-27 | 2011-11-23 | 浙江大学 | Method for controlling electronic pole inversion of multiphase induction motor on basis of vector control |
| CN102244497A (en) * | 2011-07-08 | 2011-11-16 | 大禹电气科技股份有限公司 | Frequency conversion control method and device |
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| CN103248305A (en) | 2013-08-14 |
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Effective date of registration: 20160810 Address after: 432000 No. 2, space Road, Tian Tian Industrial Park, Xiaogan Economic Development Zone, Hubei, China Patentee after: Dayu Electric Technology Co., Ltd. Address before: 430000, Hubei Wuhan New Technology Development Zone, Optics Valley Road, East Lake, No. 77, finance port, background service center, phase 12, building A3 Patentee before: Dayu Electrical Technology Co., Ltd. |