CN105429547B - Single-phase brushless direct-current motor vector control method based on virtual phase structure - Google Patents
Single-phase brushless direct-current motor vector control method based on virtual phase structure Download PDFInfo
- Publication number
- CN105429547B CN105429547B CN201510920645.1A CN201510920645A CN105429547B CN 105429547 B CN105429547 B CN 105429547B CN 201510920645 A CN201510920645 A CN 201510920645A CN 105429547 B CN105429547 B CN 105429547B
- Authority
- CN
- China
- Prior art keywords
- current
- motor
- phase
- brushless direct
- phase brushless
- 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.)
- Active
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention discloses a kind of vector control methods of the single-phase brushless direct-current motor based on virtual phase structure, it is an object of the present invention to the Vector Control Models by establishing single-phase brushless direct-current motor, vector controlled based on field orientation is carried out to single-phase brushless direct-current motor, realize the Effec-tive Function of single-phase brushless DC motor wide speed range, the dynamic response of motor operation is improved, reduces the vibrating noise of motor.There was only the situation that simplex winding is powered when the present invention is for single-phase brushless direct-current motor operation, by establishing virtual phase current, it is established that the motor mathematical model of the sub- planes of d q realizes rotating speed control and the current control of motor on this basis.The present invention is not in the case where changing electric machine structure and hardware control circuit, using the method for vector controlled, can effectively realize the Effec-tive Function of the wide loading range of wide rotating speed, improve the dynamic response of single-phase brushless direct-current motor, reduce the vibrating noise of motor.
Description
Technical field
Control field more particularly to a kind of raising single-phase brushless direct-current motor the present invention relates to single-phase brushless direct-current motor
The control method of operational efficiency and dynamic response.
Background technology
In the case where proposing the situation of energy-efficient requirement to electronic product, some were answered originally using what single-phase asynchronous motor drove
It is substituted one after another using high power density and efficient inexpensive magneto with occasion.Single-phase brushless direct-current motor also known as
" simplex winding brshless DC motor " have it is simple in structure, processing and manufacturing is easy, required power tube is few, control circuit simply, cost
The advantages of low, in some inexpensive, low starting torques, the low-power equipment of less demanding to motor performance such as wind turbine, water pump etc.
Occasion has obtained wide application.But with raising of some application scenarios to performance requirement, further promote brushless single phase
The operational efficiency of direct current generator, dynamic response performance reduce its vibrating noise, are close to three-phase (three winding) brushless dc
The performance of machine is the new demand proposed to single-phase brushless direct-current motor.
Its control mode of existing single-phase brushless direct-current motor is mainly rotating speed open loop, speed closed loop, current closed-loop or outer
The double circle structure of electric current loop in rotor ring, for radial magnetizing rotor, often according to rotor-position, using PWM's or SPWM
Modulator approach is generated is applied to the voltage on single-phase winding as side with the fixed power tube drive signal of rotor relative position, guarantee
Ripple or sine wave.Since in motor operation course, when rotating speed or load change, the phase between electric current and voltage also can be therewith
Change.If be not adjusted to current phase, it can not accomplish the Effec-tive Function in wide rotating speed or wide loading range.Exist simultaneously
Load disturbance occasion is frequently present of, if cannot be adjusted in time to electromagnetic torque, it is difficult to ensure that it has faster dynamic to ring
It should.So if the rotor flux-orientation vector control similar to three-phase permanent magnet synchronous motor can be used, according to operating status, from
The phase of dynamic adjustment inverter output voltage, guarantor unit's electric current generate the operation of torque capacity, then single-phase brushless direct-current motor
Efficiency and dynamic response performance are with regard to that can be significantly improved.
The content of the invention
It is an object of the invention to be directed to existing single-phase brushless direct-current motor in the wide loading range Effec-tive Function of wide speed and
The technical deficiency of high dynamic response aspect of performance provides a kind of vector control method of single-phase brushless direct-current motor.
The purpose of the present invention is be achieved through the following technical solutions：A kind of vector controlled side of single-phase brushless direct-current motor
Method, this method comprise the following steps：
(1) virtualphase is constructed：Obtain the winding current and rotor speed of single-phase brushless direct-current motor, construction and winding electricity
Stream is with identical change frequency, in time identical amplitude, poor 90 degree of virtual phase current；It is assumed that the virtualphase with it is actual single around
Spatially poor 90 degree of group, regards actual simplex winding electric current as α shaft currents in motor alpha-beta coordinate system, by virtual phase current
Regard the β shaft currents in alpha-beta coordinate system as.
(2) conversion of the alpha-beta coordinate system to d-q coordinate systems is completed：It is mutually converted, turned by Park with virtual phase current by actual
Change on the d-q coordinate systems of rotor speed rotation, the biphase current of ac in former alpha-beta coordinate system is converted into d-q coordinate systems
In biphase current DC quantity.
(3) q shaft voltage components U is calculated in the biphase current DC quantity obtained according to step 2qWith d shaft voltage components Ud,
Realize rotating speed control and the current control of motor.
Further, virtual phase current is constructed in the step 1 is specially：Using build table inquiry method, will actually around
Group electric current iαThe sampled value of half period be stored in array, according to current rotor speed, calculate the winding before 90 degree
Electric current iαElement in corresponding array, obtains current virtual phase current iβSize.
Further, in the step 3, UqAnd UdPreparation method be id=0 unitary current generates the arrow of torque capacity
The control method of amount control method, the control method of unity power factor or maximal efficiency.
Further, the rotating speed control in the step 3 is rotating speed open loop, speed closed loop, current closed-loop or speed outer shroud
Current inner loop double-closed-loop control.
Further, step 3 obtains q shaft voltage components UqWith d shaft voltage components UdAfterwards, with reference to the SVPWM methods of simplex winding
Or SPWM methods realize rotating speed control and the current control of motor.
The beneficial effects of the invention are as follows：Present invention can apply to refrigerator, refrigerator, air-conditioning coiler fan, vav terminal dresses
Put, fresh air ventilator etc. using single-phase brushless direct-current motor driving.Using the method for the present invention, single phase brushless direct current can be made
Motor automatic regulating voltage phase under different rotating speeds and loading condition ensures the Effec-tive Function of motor, promotes the dynamic of motor
State response performance reduces vibration and the noise of motor.
Description of the drawings
Fig. 1 is the functional block diagram of single-phase brushless direct-current motor vector control method of the present invention；
Fig. 2 is the main circuit diagram of single-phase brushless direct-current motor；
Fig. 3 is the vector controlled block diagram of single-phase brushless direct-current motor；
(square wave is suddenly for hall signal and current waveform figure when Fig. 4 is single-phase brushless direct-current motor band fans load 600rpm
That waveform, the current waveform of sine wave in order to control)；
(square wave is suddenly for hall signal and current waveform figure when Fig. 5 is single-phase brushless direct-current motor band fans load 1000rpm
That waveform, the current waveform of sine wave in order to control)；
Fig. 6 for 60W tetra- to pole rated speed 1400rpm single-phase brushless direct-current motors band fans load 880rpm when work
Make characteristic curve (wherein control panel stand-by power consumption is 6W).
Specific embodiment
The principle of the present invention is after the winding current of single-phase brushless direct-current motor and the speed of service is obtained, to pass through construction
One spatially 90 degree poor with simplex winding, the virtualphase of current phase and poor 90 degree of winding current, by former single phase brushless direct current
Motor is equivalent to the two-phase induction motor in an alpha-beta coordinate system, and then is converted by Park, using the realization list under d-q coordinate systems
Position electric current generates the MTPA methods of torque capacity, realizes the rotor field-oriented vector controlled of single-phase brushless direct-current motor.
The main circuit of single-phase brushless direct-current motor is as shown in Figure 2, is respectively turned on according to the difference of hall signal low and high level
Two pairs of different power tubes change the current direction in winding, keep the continuous operation of single-phase brushless direct-current motor.When stator around
When the electric current of group changes direction, the direction of stator magnetic potential changes correspondingly.Within one 360 degree of electric cycle, the stator of motor
Magnetic field converts a direction per 180 degree.The electromagnetic torque of motor is the interaction in electric machine rotor magnetic field, i.e. T=
FsFRSin θ, wherein FsFor stator field, FRFor rotor field, angles of the θ between two magnetic fields.By the position for detecting rotor
It puts, electronic commutation is carried out to motor, ensure that θ changes in the range of 0~180 electrical angle.The torque exported at this time is electric just, to ensure
Machine is continuously run.
From torque formula as can be seen that when θ angles are 90 degree, the torque that unitary current generates is maximum.Existing control
Method follows rotor field due to lacking, and in different rotating speeds different loads, θ angles can not be automatically regulated to be 90 degree,
At this time there is coupling in rotor and stator field, can influence the efficiency and dynamic response of motor.If therefore to single phase brushless direct current
Motor carries out the oriented control of rotor field, ensures that θ angles are 90 degree in the process of running, then passes through torque component and magnetic-field component
Decoupling, promote the dynamic response of motor, while by the way that all control is torque component by winding current, realize unitary current
Torque capacity is generated, promotes the efficiency of motor.
As shown in Figure 1,3, single-phase brushless direct-current motor vector control method of the invention, comprises the following steps：
The winding current of single-phase brushless direct-current motor passes through the processing of hardware circuit, is obtained by the AD samplings of controller real-time
Phase current iα, to carry out closed-loop current control；
It is mark according to the commutation signal of Hall element, the high-frequency impulse of setting is counted, so as to accurate in real time
Calculate the current angular rate of motorTo carry out the closed-loop control of speed, wherein P is in half of Hall period
The high-frequency impulse number of record, T are the high-frequency impulse cycle,；
According to the current rotational speed omega of motor and present sample time t, by θk+1=θk+ ω t estimate real-time electrical angle
θ；
According to the real-time phase current i of acquisitionαWith current rotational speed omega, it is identical to construct frequency, an amplitude, simply phase
90 degree of virtual phase current is differed on position.
For virtual phase current iβConstruction, using the method for software inquiry, by actual phase current iαSampled value be stored to one
In the array of a suitable length, according to current rotating speed, the phase current before calculating 90 degree corresponds to the element in array, is worked as
Preceding virtual phase current iβSize；
Actual winding is regarded as to the α phase windings in alpha-beta coordinate system, electric current iα, the virtualphase of construction is β phase windings, electric
It flows for iβ, iαAnd iβIt is orthogonal, with reference to electrical angle θ, PARK conversion can be carried out to electric current；After completing PARK conversion, reality is obtained
Active power electric current iqWith reactive power electric current id；
It will be based on idThe controlled quentity controlled variable u that=0 current closed-loop obtainsd、uqIt is converted by anti-PARK, obtains uα、uβ；
According to uαSPWM the or SVPWM methods modulation of power tube drive signal is completed, is realized based on speed ring and electric current
The single-phase brushless direct-current motor MPTA controls of ring closed loop.
According to above narration process, to this control strategy to a 60W tetra- to pole rated speed 1400rpm brushless single phases
Direct current generator band fans load has carried out experiment test.Using the control method in the present invention, i.e., based on virtualphase it is single-phase forever
The vector controlled of magnetic-synchro motor, from the test result of Fig. 4 and Fig. 5 it can be found that being carried out by vector controlled to current phase
Automatic adjustment, phase and the hall position of winding current keep same phase under different rotating speeds and different loads, that is, realize and turn
The oriented control in sub- magnetic field.
Same motor structure, only changes control strategy, using the single phase brushless direct current of the vector control method in the present invention
Motor and existing electric current in the market, rotating speed double-loop control strategy single-phase brushless direct-current motor compared with after, we
Method is about working characteristics test charts of 5~10% or so, the Fig. 6 for motor for the promotion of efficiency.
The foregoing describe basic principle, main feature and the advantages of the present invention of the present invention, and above-mentioned is only of the invention
Preferred embodiments are not the present invention limitation in any form, for being applied to the single phase brushless direct current electricity of other numbers of pole-pairs
Machine, using constructing virtual phase current, using fallen within for rotor field-oriented vector control strategy the scope of the present invention it
It is interior.Any person skilled in the art person may the method in the present invention be changed or modified to achieve the effect that it is identical, it is all
It is any variation without departing from the present invention, belongs in the range of technical solution of the present invention.
Claims (5)
- A kind of 1. vector control method of the single-phase brushless direct-current motor based on virtual phase structure, which is characterized in that this method bag Include following steps：(1) virtualphase is constructed：The winding current and rotor speed of single-phase brushless direct-current motor are obtained, construction has with the winding current There are identical change frequency, identical amplitude, poor 90 degree of the virtual phase current on time phase；It is assumed that the virtualphase with it is actual single around Spatially poor 90 degree of group, regards actual winding current as α shaft currents in motor alpha-beta coordinate system, virtual phase current is seen Into the β shaft currents in alpha-beta coordinate system；(2) conversion of the alpha-beta coordinate system to d-q coordinate systems is completed：Actual winding current and virtual phase current are converted by Park, It is transformed on the d-q coordinate systems of rotor speed rotation, the biphase current of ac in former alpha-beta coordinate system to be converted into d-q and is sat Biphase current DC quantity in mark system；(3) q shaft voltage components U is calculated in the biphase current DC quantity obtained according to step (2)qWith d shaft voltage components Ud, it is real The rotating speed control of existing motor and current control.
- 2. the vector control method of the single-phase brushless direct-current motor according to claim 1 based on virtual phase structure, feature It is, the virtual phase current of construction is specially in the step (1)：Using the method for building table inquiry, by the half of actual winding current The sampled value in a cycle is stored in array, according to current rotor speed, is calculated the actual winding current before 90 degree and is corresponded to Element in array obtains the size of current virtual phase current.
- 3. the vector control method of the single-phase brushless direct-current motor according to claim 1 based on virtual phase structure, feature It is, in the step (3), UqAnd UdPreparation method be the d shaft currents i in vector controlledd=0 unitary current generates most The control method of the big vector control method of torque, the control method of unity power factor or maximal efficiency.
- 4. the vector control method of the single-phase brushless direct-current motor according to claim 1 based on virtual phase structure, feature It is, the rotating speed control in the step (3) is speed outer shroud current inner loop double-closed-loop control.
- 5. the vector control method of the single-phase brushless direct-current motor according to claim 1 based on virtual phase structure, feature It is, step (3) obtains q shaft voltage components UqWith d shaft voltage components UdAfterwards, with reference to the SVPWM methods of simplex winding or SPWM methods Realize rotating speed control and the current control of motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920645.1A CN105429547B (en) | 2015-12-11 | 2015-12-11 | Single-phase brushless direct-current motor vector control method based on virtual phase structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510920645.1A CN105429547B (en) | 2015-12-11 | 2015-12-11 | Single-phase brushless direct-current motor vector control method based on virtual phase structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429547A CN105429547A (en) | 2016-03-23 |
| CN105429547B true CN105429547B (en) | 2018-05-29 |
Family
ID=55507527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510920645.1A Active CN105429547B (en) | 2015-12-11 | 2015-12-11 | Single-phase brushless direct-current motor vector control method based on virtual phase structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105429547B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105656380A (en) * | 2016-03-24 | 2016-06-08 | 浙江大学 | Two-phase brushless DC motor vector control method based on six-pipe full-bridge inverter |
| CN106208862B (en) * | 2016-08-03 | 2018-07-27 | 广东美的暖通设备有限公司 | Control method, control device and the wind turbine of motor |
| CN106677947A (en) * | 2017-02-27 | 2017-05-17 | 广州开元电子科技有限公司 | Motorcycle idling start-stop type start and power generation integrated control system and control method |
| CN109921663A (en) * | 2019-04-01 | 2019-06-21 | 三峡大学 | A kind of two bridge arm tri-level rectifier of three-phase based on soft switch technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010104113A (en) * | 2008-10-22 | 2010-05-06 | Asahi Kasei Electronics Co Ltd | Motor control circuit, motor device equipped therewith, and motor control method |
| JP2012080649A (en) * | 2010-09-30 | 2012-04-19 | Minebea Co Ltd | Motor drive circuit |
| CN202475346U (en) * | 2012-03-02 | 2012-10-03 | 中山大洋电机制造有限公司 | Low-power direct-current brushless single-phase motor controller |
| CN203278729U (en) * | 2013-04-19 | 2013-11-06 | 杭州微光电子股份有限公司 | Electronic commutation brushless direct current single-phase blower fan circuit |
| CN104009681A (en) * | 2014-06-05 | 2014-08-27 | 惠州市蓝微电子有限公司 | Control method for drive control system of single-phase brushless direct-current motor |
| CN204633649U (en) * | 2015-05-11 | 2015-09-09 | 上海晶丰明源半导体有限公司 | Sofe Switch control module and driven by Brush-Less DC motor system |
-
2015
- 2015-12-11 CN CN201510920645.1A patent/CN105429547B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010104113A (en) * | 2008-10-22 | 2010-05-06 | Asahi Kasei Electronics Co Ltd | Motor control circuit, motor device equipped therewith, and motor control method |
| JP2012080649A (en) * | 2010-09-30 | 2012-04-19 | Minebea Co Ltd | Motor drive circuit |
| CN202475346U (en) * | 2012-03-02 | 2012-10-03 | 中山大洋电机制造有限公司 | Low-power direct-current brushless single-phase motor controller |
| CN203278729U (en) * | 2013-04-19 | 2013-11-06 | 杭州微光电子股份有限公司 | Electronic commutation brushless direct current single-phase blower fan circuit |
| CN104009681A (en) * | 2014-06-05 | 2014-08-27 | 惠州市蓝微电子有限公司 | Control method for drive control system of single-phase brushless direct-current motor |
| CN204633649U (en) * | 2015-05-11 | 2015-09-09 | 上海晶丰明源半导体有限公司 | Sofe Switch control module and driven by Brush-Less DC motor system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429547A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Iepure et al. | Hybrid If starting and observer-based sensorless control of single-phase BLDC-PM motor drives | |
| JP4053968B2 (en) | Synchronous motor driving device, refrigerator and air conditioner | |
| CN102710188B (en) | Direct torque control method and device of brushless continuous current dynamo | |
| CN107994818B (en) | Method for real-time closed-loop adjustment control of single-phase brushless direct current motor by internal power factor angle | |
| CN101110543A (en) | Compressor and its control method | |
| CN101127500A (en) | DC frequency conversion controller and its method for controlling speed of permanent magnetic synchronous electromotor rotor | |
| CN103872951A (en) | Permanent magnet synchronous motor torque control method based on sliding mode flux linkage observer | |
| CN110071674B (en) | Position-sensor-free permanent magnet synchronous motor maximum torque current ratio control method | |
| CN105429547B (en) | Single-phase brushless direct-current motor vector control method based on virtual phase structure | |
| CN101931353B (en) | Control method for brushless direct current motor for automotive air conditioning fan | |
| Park et al. | Online advanced angle adjustment method for sinusoidal BLDC motors with misaligned hall sensors | |
| CN108964555A (en) | Permanent magnet synchronous motor low carrier based on complex vector adjuster compares control method | |
| CN108390602B (en) | A kind of direct prediction power control method of hybrid exciting synchronous motor | |
| CN107241046B (en) | A kind of starting method of the BLDC motor of position-sensor-free | |
| CN110530083B (en) | Compressor motor control method and device and air conditioner | |
| CN104767447A (en) | Five-section type vector control system of brushless direct-current motor | |
| CN104967382A (en) | Permanent magnet synchronous motor position sensorless control method | |
| CN103944478A (en) | Alternating-current excitation synchronous machine control device and method | |
| CN106533294B (en) | A kind of permanent magnet synchronous motor field weakening control method based on line voltage modulation | |
| CN106411195B (en) | Brshless DC motor current changing rate integrates equivalent control method | |
| CN108418485B (en) | A kind of hidden pole type mixed excitation electric machine invariable power loss model forecast Control Algorithm | |
| TWI426698B (en) | Intelligent control model for adaptive control of sensors without sensor control method | |
| CN107681939A (en) | Electric machine control system, transducer air conditioning | |
| CN105656380A (en) | Two-phase brushless DC motor vector control method based on six-pipe full-bridge inverter | |
| Sinha et al. | SEPIC Based PFC Converter for PMBLDCM Drive in Air Conditioning System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |