CN104579037B - A kind of driving algorithm that synchronous motor is new - Google Patents
A kind of driving algorithm that synchronous motor is new Download PDFInfo
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- CN104579037B CN104579037B CN201410720132.1A CN201410720132A CN104579037B CN 104579037 B CN104579037 B CN 104579037B CN 201410720132 A CN201410720132 A CN 201410720132A CN 104579037 B CN104579037 B CN 104579037B
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000005284 excitation Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 16
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of driving algorithms of synchronous motor.360 degree of voltage space is divided into 6 sectors by the driving algorithm, and each sector width is 60 degree, and has corresponding voltage oscillogram.Each sector voltage wave is passed through in synchronous motor three-phase windings through three-phase bridge, motor forms continuous sinusoidal current, and motor stator generates rotating excitation field and drives rotor permanent magnet rotation.The present invention simplifies algorithm during the driving of synchronous motor, reduces the requirement to chip, reduces cost.
Description
Technical field
The present invention relates to a kind of driving algorithms of new synchronous motor, belong to motor control technology field.
Background technique
Synchronous motor is small in size with its, energy saving, control performance is good, speed-regulating range width, can be adjusted the speed etc. by frequency modulation
Advantage is also able to development and application in elevator door-motor system.Its running noises is low, Elevator Aiming Storey Precision and occupant comfort sense are all excellent
There is apparent superiority so that synchronous motor gearless traction technology is developed in pervious drive system, obtain people in the industry
The generally approval of scholar, research and development of the synchronous motor in elevator door-motor system have very big use value.But its cumbersome electricity
Machine driving algorithm only uses dsp chip to be just able to achieve, can be smaller with the range of choice of chip, higher cost.
Summary of the invention
In order to solve the problems, such as that techniques discussed above, the present invention provide a kind of driving algorithm that synchronous motor is new.Synchronize electricity
The new driving algorithm of machine is instead of cumbersome algorithm in sine space vector modulation technique, its calculating is simple, the requirement to chip
It is low, thus the range of choice of chip is wider, and the driving process that common chip completes synchronous motor can be used, and reduces costs.
The technical scheme is that
360 degree of voltage space is divided into 6 sectors by a kind of driving algorithm that synchronous motor is new, the driving algorithm, each
Sector width is 60 degree, and has corresponding voltage oscillogram, and each sector voltage wave is passed through synchronous motor through three-phase bridge
In three-phase windings, motor forms continuous sinusoidal current, and motor stator generates rotating excitation field and drives rotor permanent magnet rotation.
Further, the voltage oscillogram of each sector is different.
Further, the synchronous motor rotates a circle, and needs to be configured each sector voltage turn-on time, so that electric
Pressure forms continuous sinusoidal current through three-phase bridge, guarantees that motor operates normally.
Further, the adjustment of voltage turn-on time is needed through linear interpolation or sinusoidal algorithm reality in the sector
It is existing.
The beneficial effects of the present invention are:
The present invention provides a kind of driving algorithm of synchronous motor.The new driving algorithm of synchronous motor, simplifies the mistake of algorithm
Journey reduces the requirement to chip, reduces cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of synchronous machine drives algorithm of the present invention；
Fig. 2 is synchronous machine drives linear interpolation schematic diagram of the present invention；
Fig. 3 is synchronous machine drives circuit diagram of the present invention.
Specific embodiment
Embodiments of the present invention are described in detail with reference to the accompanying drawing.
It is the working principle of the invention figure shown in Fig. 1.A kind of driving algorithm that synchronous motor is new of the present invention includes to 360 degree
Voltage space be divided into 60 degree of sectors, altogether there are six sector, there is corresponding voltage oscillogram in each sector, and voltage is by one
A sector changes to the waveform of another sector, needs to realize by sinusoidal algorithm or linear interpolation.
The calculating process of linear interpolation or sinusoidal algorithm are as follows: from first sector to second sector, A phase high level
Time shorten, we will the time as abscissa, voltage corresponds to the time as ordinate, first sector signals rising edge of A phase
Point is ta1, signal failing edge corresponding time point be the coordinate points of ta2 and second sector signals rising time be ta3 with
And signal failing edge time coordinate point ta4, the frequency of motor is it is known that the time of each sector can be acquired, it is assumed that the first sector
The low level time, then the linear equation or sinusoid equation of the first sector can acquire.The equation of the second sector of A phase also like this can
It acquires.B, equation is also according to said method acquired in the corresponding sector C two one by one.According to said method insertion low and high level is as shown in Figure 2.
The present invention in the process of implementation, calculates a cycle time first, then calculates the time of a sector, then counts
Calculate the time of corresponding angle.Assuming that a period frequency is 10HZ, then a period needs 100ms, each sector time is 50/
3ms.It is as shown in table 1:
| Degree | 10 | 20 | 30 | 40 | 60 |
| Time/ms | 9/25 | 50/9 | 25/3 | 100/9 | 50/3 |
As can be seen from the figure from large to small from first sector to second sector A phase high level time, and B phase is by small
Become larger, then there is no variations for C phase.There are such rule in other sectors.
Synchronous motor three-phase windings are connected with Ua, Ub in Fig. 2, Uc respectively, and voltage is passed through motor three-phase by three-phase bridge
Winding generates continuous sinusoidal current, so that motor stator generates continuous rotating excitation field, drives rotor permanent magnet rotation.
It is synchronous machine drives circuit diagram of the present invention shown in Fig. 3.The three-phase bridge of T1~T6 composition, Ua, Ub, Uc are constituted
A, B, C three-phase voltage, and it is passed through the three-phase windings of synchronous motor.The chip range that the synchronous motor may be selected to use is extensive, though
Right accuracy is low compared to sine space vector modulation technique algorithm, but this algorithm drives synchronous motor, applies to control elevator door
Meet the requirement of accuracy in machine system, also instead of some cumbersome calculating process, so that control synchronous machine drives are more
It is easy.
Although being described in conjunction with the accompanying physical circuit schematic diagram of the invention, those skilled in the art in the art can
To make various deformations or amendments within the scope of the appended claims.
Claims (3)
1. a kind of synchronous machine drives method, it is characterised in that: 360 degree of voltage space is divided into 60 degree one by the driving method
Sector, there are six sectors altogether, and there is corresponding voltage oscillogram in each sector；Each sector voltage wave is passed through synchronization through three-phase bridge
In motor three-phase windings, synchronous motor forms continuous sinusoidal current, and motor stator generates rotating excitation field and rotor permanent magnet is driven to turn
It is dynamic；
The adjustment of voltage turn-on time is realized by linear interpolation or sinusoidal algorithm in the sector；
The linear interpolation or sinusoidal algorithm calculating process are as follows: from first sector to second sector, A phase high level
Time shortens, will the time as abscissa, as ordinate, first sector signals rising edge of A phase corresponds to time point and is voltage
Ta1, signal failing edge corresponding time point are that the coordinate points of ta2 and second sector signals rising time are ta3 and letter
Number failing edge time coordinate point ta4 acquires the time of each sector known to the frequency of motor, sets the first sector of A phase low level
Time, then acquire the linear equation or sinusoid equation of the first sector of A phase；The equation of the second sector of A phase also acquires like this；B,C
Also equation is according to said method acquired one by one in two corresponding sectors；360 degree of voltage space is divided into 60 degree of sectors, if a period
Frequency is 10HZ, then a period needs 100ms, each sector time is 50/3ms, and when degree is 10, the corresponding time is
9/25ms, when degree is 20, the corresponding time is 50/9ms, and when degree is 30, the corresponding time is 25/3ms, works as degree
When being 40, the corresponding time is 100/9ms, and when degree is 60, the corresponding time is 50/3ms.
2. a kind of synchronous machine drives method according to claim 1, it is characterised in that: the voltage wave of each sector
Shape figure is different.
3. a kind of synchronous machine drives method according to claim 1, it is characterised in that: the synchronous motor rotation one
It week needs to be configured each sector voltage turn-on time, so that motor forms continuous sinusoidal current through three-phase bridge, protect
Motor is demonstrate,proved to operate normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720132.1A CN104579037B (en) | 2014-12-02 | 2014-12-02 | A kind of driving algorithm that synchronous motor is new |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410720132.1A CN104579037B (en) | 2014-12-02 | 2014-12-02 | A kind of driving algorithm that synchronous motor is new |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104579037A CN104579037A (en) | 2015-04-29 |
| CN104579037B true CN104579037B (en) | 2018-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410720132.1A Active CN104579037B (en) | 2014-12-02 | 2014-12-02 | A kind of driving algorithm that synchronous motor is new |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174811A (en) * | 2007-10-19 | 2008-05-07 | 奇瑞汽车有限公司 | Electric motor control method and device adopting space vector pulse width modulation |
| CN102882462A (en) * | 2012-09-21 | 2013-01-16 | 联合汽车电子有限公司 | Combined-type SVPWM method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5831444B2 (en) * | 2012-12-26 | 2015-12-09 | 株式会社デンソー | Rotating machine control device |
-
2014
- 2014-12-02 CN CN201410720132.1A patent/CN104579037B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101174811A (en) * | 2007-10-19 | 2008-05-07 | 奇瑞汽车有限公司 | Electric motor control method and device adopting space vector pulse width modulation |
| CN102882462A (en) * | 2012-09-21 | 2013-01-16 | 联合汽车电子有限公司 | Combined-type SVPWM method |
Non-Patent Citations (1)
| Title |
|---|
| 基于空间矢量PWM控制的永磁同步电机驱动***的研究;周恒;《中国优秀硕士学位论文全文数据库》;20130115;第18-27页 * |
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| Publication number | Publication date |
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| CN104579037A (en) | 2015-04-29 |
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Effective date of registration: 20231213 Address after: No. 36 Hongguang Road, Niutang Town, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Changzhou Xinshijia Electric Vehicle Electric Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |