CN104052342B - A kind of motor control assembly and there is its air-conditioning system - Google Patents
A kind of motor control assembly and there is its air-conditioning system Download PDFInfo
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- CN104052342B CN104052342B CN201310080937.XA CN201310080937A CN104052342B CN 104052342 B CN104052342 B CN 104052342B CN 201310080937 A CN201310080937 A CN 201310080937A CN 104052342 B CN104052342 B CN 104052342B
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Abstract
The open a kind of motor control assembly of the present invention, comprising: the first rotor position detecting module detects the rotor-position of the first motor and generates the first detection signal；Second rotor-position detection module detects the rotor-position of the second motor and generates the second detection signal；Controller module has multiple control output pin at microprocessor internal, controller module is connected with the first rotor position detecting module and the second rotor-position detection module respectively, and controller module generates control signal according to the first detection signal and the second detection signal；First IPM module is connected with multiple control output pins respectively with the 2nd IPM module, and the first motor is controlled by an IPM module according to control signal, and the second motor is controlled by the 2nd IPM module according to control signal.The motor control assembly of the present invention can use controller module control two motor in synchrony to run, and reduces cost.Invention additionally discloses a kind of air-conditioning system with this motor control assembly.
Description
Technical field
The present invention relates to motor control technology field, particularly to a kind of motor control assembly and one, there is this motor
The air-conditioning system of control device.
Background technology
Widely known, the operation of brshless DC motor is to be changed accordingly with the diverse location of rotor by power device of inverter
Become what its different triggering assembled state realized.Wherein, the driving control system of brshless DC motor mainly includes micro-place
Reason device, rotor position detection circuit, current detection circuit, IPM(Intelligent Power Module, intelligent power
Module) and driver element, driving and the control parts such as power supply composition.Microprocessor changes according to the diverse location of rotor
Variable power device is different triggers assembled state, implements different control algolithms to motor, is the critical component of system control.
It currently for bi-motor or multi-motor control system, is first that the rotor-position to motor detects.Such as Fig. 1
Shown in, for a kind of structure chart generally being used of pair BLDCM Drive Systems in existing air-conditioning system, its
In, dual motors system can share a microprocessor, and this microprocessor includes two motor control unit such as motors
Control unit (A) and motor control unit (B), but each motor is required for a set of independent rotor-position inspection
Slowdown monitoring circuit, IPM module etc..Further, the position detection of brshless DC motor generally uses HALL(Hall) element
Entering line position detection, general 2 or 3 HALL elements of motor employing detect the rotor-position of motor,
This detection method cost is relatively low.For the motor of 3 HALL elements, can obtain corresponding to one number of pole-pairs of rotor
Obtaining 6 rotor-position signals, therefore the brshless DC motor of this method for detecting position generally uses square wave drive scheme,
The torque pulsation of brushless DC motor that square wave drives is relatively big, and especially when low cruise, the running stability of motor is poor,
The noise of motor is also relatively big simultaneously, limits the application of motor.
As national energy-saving reduces discharging the implementation of policy, can be replaced original by direct current generator in a lot of applications at present
Alternating current generator, to improve the efficiency of electric system.The next system of a lot of situations needs to use multiple motor, is therefore
Improve the efficiency of system, apply the occasion of two even more many direct current generators also to get more and more simultaneously, for example full direct current
Frequency-variable air conditioner outdoor machine, compressor electric motor and outdoor fan motor all use brshless DC motor (or permagnetic synchronous motor),
The model of two kinds of motors is different, and the power of compressor electric motor is in 1～3KW scope, and the power of outdoor fan motor exists
Within 100W.And for example double cross flow fan governing systems in a kind of air conditioning chamber, it is identical that indoor fan have employed two models
Brshless DC motor, the load of two motors is essentially identical, each power of motor about 40W.
With the progress of technology, the control for brshless DC motor occurs in that encoderless, turning without HALL element
Sub-method for detecting position, the general principle of this method is: estimate motor by detection or the back-emf calculating motor
The position of rotor, i.e. so-called " back-emf position detection scheme ".The method can include that two schemes realizes, first
The scheme of kind is directly to detect back-emf, i.e. directly detects back-emf by special analogue signal circuit, thus estimates
The rotor-position of motor, can only obtain rough rotor position information by this scheme, coordinates the single-chip microcomputer of low cost
Square wave can be implemented to motor to drive, at present, this lower cost solution of a lot of employings in household appliances motor speed regulation system.
The another kind of scheme such as the detection of bus current list resistance position, the detection of biphase current position, this type of scheme is substantially a kind of
Indirect back-EMF determination scheme, i.e. first passes through the detection to electric machine phase current, extrapolates the back-emf of motor, finally estimate
Calculating the rotor-position of motor, this scheme uses high-speed microprocessor or the DSP(Digital Signal of powerful
Processor, digital signal microprocessor), it is possible to obtain fine rotor position information, apply permagnetic synchronous motor
Vector Control Model, can to motor implement rotor FOC(Field Oriented Control, field oriented control) control
System, it is thus achieved that sinusoidal wave phase current, i.e. so-called " sinusoidal wave control ".At present, this scheme is in frequency converting air-conditioner compressor control
System is often used, but requires high performance single-chip microcomputer or DSP, relatively costly.
In sum, prior art has the drawback that, Double Motor Control System uses the micro-of two motor control units
Processor, cost is high.Further, the torque pulsation of brushless DC motor that square wave drives is relatively big, the running stability of motor
Poor, the noise of motor is also bigger simultaneously.Additionally, use encoderless, the rotor-position detection without HALL element
Method, accuracy is low or cost is high.
Content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
To this end, it is an object of the present invention to propose a kind of motor control assembly, this motor control assembly can reduce
Cost, improves the running stability of motor, reduces the noise of motor.Further object is that proposition one
Air-conditioning system.
For reaching above-mentioned purpose, a kind of motor control assembly of one aspect of the present invention embodiment proposition, comprising: first turn
Sub-position detecting module, described the first rotor position detecting module detects the rotor-position of the first motor and generates the first inspection
Survey signal；Second rotor-position detection module, the rotor position of described second rotor-position detection module detection the second motor
Put and generate the second detection signal；Controller module, described controller module at microprocessor internal, described controller
Module has multiple control output pin, described controller module respectively with described the first rotor position detecting module and the
Two rotor-position detection modules are connected, and described controller module is according to described first detection signal and described second detection letter
Number generate control signal；First IPM module, a described IPM module is connected with the plurality of control output pin,
Described first motor is controlled by a described IPM module according to described control signal；And the 2nd IPM module,
Described 2nd IPM module is connected with the plurality of control output pin, and described 2nd IPM module is according to described control letter
Number described second motor is controlled.
Motor control assembly according to embodiments of the present invention, the first motor and the second motor share a controller module
Use identical control signal, ensure that two motor in synchrony run, and the efficiency individually controlling with two motors
Essentially identical.Additionally, improve motor traveling comfort, reduce the noise that motor runs simultaneously, be substantially reduced
Cost.
In one embodiment of the invention, when the rotating speed of described first motor is less than the rotating speed of described second motor,
Described controller module generates control signal according to described first detection signal.
Detection signal according to low the first motor of rotating speed generates control signal, and the rotating speed of the second motor can be made to reduce,
The first motor and the second motor is made to reach synchronized.
Further, described IPM module includes: driver element, described driver element and the plurality of control efferent duct
Pin is connected, and drives signal for generating according to described control signal；Drive axle, described drive axle includes 6 IGBT
With 3 outputs, each IGBT is connected with described driver element, described 3 outputs respectively with corresponding motor
Threephase stator winding is connected, each IGBT described on or off under described driving signal control.
In one embodiment of the invention, described control signal is pwm signal.
Wherein, described controller module is additionally operable to regulate the dutycycle of described pwm signal to control described first motor
With described second motor speed.
In one embodiment of the invention, described rotor-position detection module includes 3 Hall elements.
In an embodiment of the present invention, described first motor and the second motor are DC brushless motor.
In one embodiment of the invention, the threephase stator winding of described first motor and the second motor uses star even
Connect.
For reaching above-mentioned purpose, second aspect present invention embodiment also proposes a kind of air-conditioning system, including above-mentioned motor
Control device.
Air-conditioning system according to embodiments of the present invention, is controlled to bi-motor by using the same control signal of above-mentioned use
The motor control assembly of system, it is ensured that operation of air conditioner is good, reduces cost.
Aspect and advantage that the present invention adds will part be given in the following description, and part will become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description
The present invention above-mentioned and/or that add aspect and advantage will become bright from the following description of the accompanying drawings of embodiments
Aobvious and easy to understand, wherein:
Fig. 1 is the structural representation of double BLDCM Drive Systems in existing air-conditioning system；
Fig. 2 is the structural representation of the motor control assembly according to the embodiment of the present invention；
Fig. 3 is the further structural representation of the motor control assembly according to one embodiment of the invention；And
Fig. 4 is the block diagram of the air-conditioning system according to the embodiment of the present invention.
Reference:
The first rotor position detecting module the 201st, the second rotor-position detection module the 202nd, controller module the 203rd, first
IPM module 204 and the 2nd IPM module 205, the first motor M1 and the second motor M2, driver element 301 and driving
Dynamic bridge 302, lead-out terminal UA, VA, WA of an IPM module 204 and the threephase stator of the first motor M1
Winding terminals U1, V1, W1 terminal, lead-out terminal UB, VB, WB of the 2nd IPM module 205 and the second electricity
Threephase stator winding terminals U2, V2, W2 terminal of machine M2.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or has the element of same or like function.Below by ginseng
The embodiment examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the parts and setting of specific examples are described.Certainly, they are only merely illustrative,
And it is not intended to limit the present invention.Additionally, the present invention can in different examples repeat reference numerals and/or letter.
This repetition is for purposes of simplicity and clarity, itself does not indicate between discussed various embodiment and/or setting
Relation.Additionally, the example of the various specific technique that the invention provides and material, but ordinary skill people
Member is it can be appreciated that the use of the property of can be applicable to of other techniques and/or other materials.In addition, the first spy described below
Levy second feature it " on " structure can include that the first and second features are formed as the embodiment directly contacting, it is possible to
To include the embodiment that other feature is formed between the first and second features, such first and second features may not
It is directly contact.
In describing the invention, it should be noted that unless otherwise prescribed and limit, term " is installed ", " being connected ",
" connect " and should be interpreted broadly, for example, it may be mechanically connected or electrical connection, it is also possible to be the company of two element internals
Logical, can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, for those of ordinary skill in the art
Speech, can understand the concrete meaning of above-mentioned term as the case may be.
With reference to explained below and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.Describe at these
With in accompanying drawing, specifically disclose some particular implementation in embodiments of the invention, represent and implement the present invention's
Some modes of the principle of embodiment, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary,
All changes in the range of spirit that embodiments of the invention include falling into attached claims and intension, modification and
Equivalent.
Describe the motor control assembly proposing according to embodiments of the present invention with reference to the accompanying drawings and there is this motor control dress
The air-conditioning system put.
As in figure 2 it is shown, the motor control assembly that one embodiment of the invention proposes includes the first rotor position detecting module
201st, the second rotor-position detection module the 202nd, controller module the 203rd, an IPM module 204 and the 2nd IPM mould
Block 205.Wherein, the first rotor position detecting module 201 detects the rotor-position of the first motor M1 and generates the first inspection
Surveying signal, the second rotor-position detection module 202 detects the rotor-position of the second motor M2 and generates the second detection letter
Number.Controller module 203 is at microprocessor internal, and controller module 203 has multiple control output pin, and
Controller module 203 is connected with the first rotor position detecting module 201 and the second rotor-position detection module 202 respectively,
Generate control signal according to the first detection signal and the second detection signal.First IPM module 204 and controller module 203
Multiple control output pins be connected, the first motor M1 is controlled by an IPM module 204 according to control signal.
2nd IPM module 205 is connected with multiple control output pins of controller module 203 equally, the 2nd IPM module 205
According to control signal, the second motor M2 is controlled.Wherein, the first motor M1 and the second motor M2 can be straight
Stream brushless electric machine.
In one embodiment of the invention, controller module 203 can be motor control unit, and microprocessor receives
To the first detection signal and the second detection signal, and this detection signal is sent to controller module 203 through process, control
The control signal that device module 203 processed generates according to the first detection signal and the second detection signal is PWM(Pulse Width
Modulation, pulsewidth modulation) signal.And controller module 203 can be by regulating the dutycycle of pwm signal
Control the first motor M1 and the second motor M2 rotating speed.
The motor control assembly that the embodiment of the present invention proposes is directed to the simultaneously through transport of two brshless DC motor M1 and M2
Row problem, two motors share an i.e. motor control unit of controller module 203, share a set of control signal.Close
In the parallel running of motor, if common induction machine does not needs to regulate rotating speed, then do not need driver and access electrical network
Just can run, this type of induction machine easily realizes parallel running.And induction machine is added to the frequency conversion of frequency converter composition
Governing system, while it is desirable to transducer drive, but the control that frequency converter is to motor does not needs the positional information of motor, right
In the motor speed regulation system of this type of rotor position information open loop, by sharing a frequency converter, the identical sense of multiple models
Answer the motor also can be in parallel.And the parallel running of the brshless DC motor for rotor-position signal closed loop, even if model
Two identical brshless DC motors, inductance parameters, the back emf coefficient of motor winding also have certain discreteness, same
When also be difficult to ensure that the load of two motors is identical, and the embodiment of the present invention propose motor control assembly,
Achieving and carrying out Parallel Control to two brshless DC motors, the motor control assembly of the embodiment of the present invention can be first
In the case that the inductance parameters of motor M1 and second click M2, back emf coefficient and motor load are incomplete same, control
Make two brshless DC motor parallel runnings, it is achieved the rotating speed of two motors is identical.And two brshless DC motors are simultaneously
When individually controlling with two motors during through transport row, the efficiency of system is essentially identical.Below the embodiment of the present invention is proposed
Motor control assembly is described in detail.
Specifically, in an embodiment of the present invention, the first rotor position detecting module 201 and the detection of the second rotor-position
Module 202 detects the first motor M1 and the rotor position information of the second motor M2 respectively, and generates two motors respectively
Rotor-position signal (the i.e. first detection signal and the second detection signal), and by the rotor-position signal of two motors
Feeding back to microprocessor, microprocessor is then forwarded to controller module 203 through process.Controller module 203 is according to
One detection signal and the second detection signal generation pwm signal, and the dutycycle of pwm signal can be regulated, by 6
Individual control output pin output six road pwm signals, are sent simultaneously to an IPM module 204 and the 2nd IPM module
205, and control signal PWMA that an IPM module 204 receivesiReceive with the 2nd IPM module 205
Control signal PWMBiIdentical, i.e. PWMi=PWMAi=PWMBi, wherein, i=1, the 2nd, 3 ... 6.First IPM
Module 204 is according to control signal PWMA receivingiControl drives the first motor M1, the 2nd IPM module 205
According to control signal PWMB receivingiDrive control the second motor M2, so just makes the first motor M1 and second electricity
The control logic of machine M2 is always identical at any time.It should be noted that when the rotating speed of the first motor M1 is less than the
During the rotating speed of two motor M2, controller module 203 generates control signal according to the first detection signal, i.e. according to rotating speed
The detection signal of slower motor generates control signal.Controller module 203 is believed with the rotor-position of the slower motor of rotating speed
Number determine power device triggering assembled state, the very fast motor of rotating speed because can not obtain in time power device trigger state
Change and cause slowing, two such motor can automatic synchronization in running.
In one embodiment of the invention, as it is shown on figure 3, an IPM module 204 and the 2nd IPM module 205
Farther include driver element 301 and drive axle 302.Wherein, driver element 301 is connected with multiple control output pins,
Drive signal for generating according to control signal.Drive axle 302 includes 6 IGBT(Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor) and 3 outputs, each IGBT is all connected with driver element 301,
3 outputs are connected with the threephase stator winding of corresponding motor respectively, each IGBT conducting under driving signal control
Or turn off.When an IPM module 204 and the 2nd IPM module 205 receive the control that controller module 203 sends
During signal, driver element 301 generates according to control signal and drives signal, and transmits drive signals to drive axle 302,
Drive axle 302 is according to the different triggering assembled state driving signal 6 IGBT of control, thus realizes the first motor M1
With control while the second motor M2.It can be seen that two brshless DC motor that is first motor M1 and the second motor
M2 receives identical driving signal, and the sequential i.e. driving the IGBT turn-on and turn-off of two motors is identical.Though
When the right inductance parameters when motor, back emf coefficient and motor load are incomplete same, the rotating speed of motor can produce difference,
The rotor-position feedback signal that is first of motor detects signal and the second detection signal also can produce difference, but the present invention
The motor control assembly that embodiment proposes can make two motors reach identical rotating speed.Specifically, as the first motor M1
Rotating speed less than the rotating speed of the second motor M2 when, controller module 203 is according to slower motor that is first motor of rotating speed
The detection signal of M1 generates control signal, and i.e. motor control assembly is with rotor-position signal that is first of the slower motor of rotating speed
The triggering assembled state of detection signal deciding IGBT constant power device, according to the control principle of brshless DC motor, rotating speed
Very fast motor because IGBT can not be obtained in time to be triggered the change of state and slow, such first motor M1 and the
Two motor M2 can automatic synchronization in running.In addition, it is demonstrated experimentally that in rotating speed i.e. the present embodiment of very fast motor
The second motor M2 because changing IGBT in time and triggering state and cause this operational mode slowing, only
Want the inductance parameters of two motors, back emf coefficient, load to be more or less the same, do not interfere with the operational efficiency of motor.
In an embodiment of the present invention, the first motor M1 and the second motor M2 can be the brushless dc that model is identical
Machine, i.e. electric machine rotor are equivalently-sized, and motor winding connection mode, umber of turn, back-emf number, winding self-induction are mutual
The parameters of electric machine such as sense are essentially identical.In a specific example of the present invention, the brshless DC motor of employing can be 8
Pole motor, peak power output is 30W, and electric current is 0.3A, and electric machine speed regulation scope is 300～1200 revs/min.At this
In one embodiment of invention, as it is shown on figure 3, the threephase stator winding of the first motor M1 and the second motor M2 uses
Y-connection, the load operationally being carried is essentially identical.
In one embodiment of the invention, rotor-position detection module i.e. the first rotor position detecting module 201 and
Two rotor-position detection modules 202 all include 3 Hall elements.I.e. can obtain 6 corresponding to one number of pole-pairs of rotor
Individual rotor-position signal, then rotate a circle for 8 pole motors and can obtain 48 rotor-position signals.
As it is shown on figure 3, in a specific example of the present invention, microprocessor can be single motor of RENESAS
Control chip such as M30280, i.e. has an i.e. motor control unit of controller module 203.Below to M30280
Chip does simple introduction, and M30280 chip is to use high-performance Si-gate CMOS(Complementary Metal Oxide
Semiconductor, complementary metal oxide semiconductors (CMOS)) technique and the list being loaded with M16C/60 series CPU core
Piece machine, uses 64 pin plastic packaging LQFP(Low-profile Quad Flat Package, and Quad Flat formula encapsulates).
The instruction of this single-chip microcomputer existing high-performance has again high efficiency to instruct, and possesses the address space of 1M byte and quickly perform to refer to
The ability of order.In addition, M16C/28 group has multiplier and DMA(Direct Memory Access, direct internal memory
Access) controller, it is adaptable to need the control of OA, communication equipment and industrial equipment that high speed arithmetic/logic processes
System, this chip can use six road pwm signals of 3 timer output three phase electric machines, and when chip has dead band
Between compensate function.Additionally, as it is shown on figure 3, IPM module that is the IPM module 204 and the 2nd IPM module 205
The SIM6822M inverted power module of SANKEN can be, below SIM6822M inverted power module be done simply
Introduce.SIM6822M inverted power module be a kind of by there is various defencive function pre-drive IC, with current-limiting resistance
Bootstrap diode and the inverted power module that is packaged together of the power output device of Unit 6, the specified electricity of module
Stream 3A, 600V rated, there is stream, overheated, the perfect defencive function such as under-voltage, IPM module is by 310V
DC-voltage supply, P is the anode of DC voltage, and N is the negative electrode of DC voltage.
As it is shown on figure 3, in one embodiment of the invention, use sine wave to drive motor, utilize the list of low speed
Piece movement piece such as M30280 chip is obtained with the electric machine phase current waveform of nearly sine, thus reduces motor
Torque pulsation, improves operating steadily of motor, reduces the noise of motor simultaneously.Specifically, the first rotor position
First motor M1 is detected by detection module 201, and generates the first detection signal that is three for the first motor M1
Road position detection signal HA1, HA2, HA3, Bing Jiang tri-road position detection signal HA1, HA2, HA3 feed back to
Microprocessor, primary processor carries out data process, sends information to controller module 203 i.e. motor control unit.
In like manner, the second motor M2 is detected by the second rotor-position detection module 202, and generates for the second motor
Second detection signal that is three road position detection signal HB1, HB2, HB3 of M2, Bing Jiang tri-road position detection signal
HB1, HB2, HB3 feed back to microprocessor equally, and microprocessor carries out data process, and sends information to control
The i.e. motor control unit of device module 203 processed, motor control unit carries out speed regulating control computing according to the speed preset, changes
Variable power device is different triggers assembled state, produces 6 road pwm signals (PWM1～PWM6) and is simultaneously transferred to the
One IPM module 204 and the 2nd IPM module 205, the driver element 301 within an IPM module 204 is by 6 tunnels
Pwm signal is transformed into 6 roads and drives signal i.e. UAh, VAh, WAh, UAL, VAL, WAL to drive the respectively
That is 6 IGBT of 6 power output devices in rectifier bridge 302 in one IPM module 203.In like manner, the 2nd IPM
Driver element 301 within module 204 6 road pwm signals are transformed into 6 roads drive signal i.e. UBh, VBh,
WBh, UBL, VBL, WBL drive the 2nd IPM module 205 respectively in drive axle 302 in 6 output works
Rate device that is 6 IGBT.Wherein, lead-out terminal UA, VA, WA(i.e. drive axle of an IPM module 204
3 outputs of 301) it is connected with threephase stator winding terminals U1, V1, W1 terminal of the first motor M1 respectively.
3 outputs of the i.e. drive axle 301 of lead-out terminal UB, VB, WB(of the 2nd IPM module 205) respectively with
Threephase stator winding terminals U2, V2, W2 terminal of two motor M2 is connected.Wherein it is desired to explanation, even if
The parameter that first motor M1 and the second motor M2 are arranged have discreteness, two motors be loaded with certain difference,
Control device in present example also can normally work.
In sum, motor control assembly according to embodiments of the present invention, the first motor and the second motor share a control
Device module processed i.e. uses identical control signal, ensure that two motor in synchrony run, and independent with two motors
The efficiency of control is essentially identical.Additionally, improve motor traveling comfort, reduce the noise that motor runs simultaneously,
Greatly reduce cost.
As shown in Figure 4, another embodiment of the present invention also proposed a kind of air-conditioning system 1000, this air-conditioning system 1000
Including the motor control assembly 100 that above-described embodiment proposes.Wherein, air-conditioning system 1000 can be for having double through-flow room
The air-conditioner of inner blower motor.
Air-conditioning system according to embodiments of the present invention, is controlled to bi-motor by using the same control signal of above-mentioned use
The motor control assembly of system, it is ensured that operation of air conditioner is good, reduces cost.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or
Person's feature is contained at least one embodiment or the example of the present invention.In this manual, the signal to above-mentioned term
Property statement be not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or
Feature can combine in any one or more embodiment or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand these embodiments can be carried out without departing from the principles and spirit of the present invention multiple change, modification,
Replacing and modification, the scope of the present invention is by claims and equivalent limits.
Claims (7)
1. a motor control assembly, it is characterised in that include:
The first rotor position detecting module, the rotor-position of described the first rotor position detecting module detection the first motor is simultaneously
Generate the first detection signal；
Second rotor-position detection module, the rotor-position of described second rotor-position detection module detection the second motor is simultaneously
Generate the second detection signal；
Controller module, described controller module is at microprocessor internal, and it is defeated that described controller module has multiple control
Go out pin, described controller module respectively with described the first rotor position detecting module and the second rotor-position detection module
Being connected, described controller module generates control signal according to described first detection signal and described second detection signal, its
In, when the rotating speed of described first motor is less than the rotating speed of described second motor, described controller module is according to described the
One detection signal generates control signal；
First IPM module, a described IPM module is connected with the plurality of control output pin, a described IPM
Described first motor is controlled by module according to described control signal；And
2nd IPM module, described 2nd IPM module is connected with the plurality of control output pin, described 2nd IPM
Described second motor is controlled by module according to described control signal.
2. motor control assembly as claimed in claim 1, it is characterised in that described IPM module farther includes:
Driver element, described driver element is connected with the plurality of control output pin, for according to described control signal
Generate and drive signal；
Drive axle, described drive axle includes 6 IGBT and 3 outputs, each IGBT and described driver element phase
Even, described 3 outputs are connected with the threephase stator winding of corresponding motor respectively, and each IGBT described drives described
The lower on or off of dynamic signal control.
3. motor control assembly as claimed in claim 1, it is characterised in that described control signal is pwm signal.
4. motor control assembly as claimed in claim 3, it is characterised in that described controller module is additionally operable to regulation
The dutycycle of described pwm signal controls described first motor and described second motor speed.
5. motor control assembly as claimed in claim 1, it is characterised in that described first motor and the second motor are
DC brushless motor.
6. motor control assembly as claimed in claim 5, it is characterised in that described first motor and the second motor
Threephase stator winding uses Y-connection.
7. an air-conditioning system, it is characterised in that include the motor control assembly as described in any one of claim 1-6.
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| CN201310080937.XA CN104052342B (en) | 2013-03-13 | 2013-03-13 | A kind of motor control assembly and there is its air-conditioning system |
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| CN201310080937.XA CN104052342B (en) | 2013-03-13 | 2013-03-13 | A kind of motor control assembly and there is its air-conditioning system |
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| CN104052342B true CN104052342B (en) | 2016-11-02 |
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| CN104779854B (en) * | 2015-03-19 | 2018-04-10 | 四川长虹电器股份有限公司 | Outdoor fan drags control method against the wind |
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