CN102684400A - Halbach array permanent magnetic efficient energy-saving textile motor - Google Patents

Halbach array permanent magnetic efficient energy-saving textile motor Download PDF

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Publication number
CN102684400A
CN102684400A CN2012101763862A CN201210176386A CN102684400A CN 102684400 A CN102684400 A CN 102684400A CN 2012101763862 A CN2012101763862 A CN 2012101763862A CN 201210176386 A CN201210176386 A CN 201210176386A CN 102684400 A CN102684400 A CN 102684400A
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CN
China
Prior art keywords
motor
halbach array
circuit
driving
permanent magnetism
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CN2012101763862A
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Chinese (zh)
Inventor
夏长亮
陈炜
乔照威
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天津工业大学
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Priority to CN2012101763862A priority Critical patent/CN102684400A/en
Publication of CN102684400A publication Critical patent/CN102684400A/en

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2786Outer rotor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/08Arrangements for controlling the speed or torque of a single motor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/10Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P2207/00Indexing scheme relating to controlling arrangements characterised by the type of motor
    • H02P2207/05Synchronous machines, e.g. with permanent magnets or DC excitation

Abstract

A Halbach array permanent magnetic efficient energy-saving textile motor comprises a Halbach array permanent magnetic textile motor, a controller and a detection and sampling circuit, wherein the Halbach array permanent magnetic textile motor is integrally formed by a changer and a Halbach array permanent magnetic synchronous motor; the output of the changer is respectively connected with the Halbach array permanent magnetic synchronous motor and the detection and sampling circuit; the output of the detection and sampling circuit is connected with the controller; and the controller is connected with the changer. The textile motor is provided with air gap good in sine degree, reduces torsion pulsation, facilitates the improvement of the positioning precision of thee motor, saves a transmission mechanism between the motor and a load, lowers the system energy consumption, improves system conversion efficiency, saves system cost, decreases the size of a system, enhances the reliability and the interference resistance of the system, and can enable the motor to reliably operate in a high-temperature, high-humidity and dusty textile motor typical operation environment.

Description

The energy-efficient textile motor of Halbach array permanent magnetism

Technical field

The present invention relates to a kind of weaving motor special.Particularly relate to a kind of energy-efficient textile motor of Halbach array permanent magnetism with electromechanical integration integrated technology.

Background technology

In the major project of China's energy conservation project, motor and system engineering become one of industry of tool energy-saving potential.At present, China is actively promoting and is helping carrying out of high efficiency motor and electric system energy conservation project and implementing, and the research and development to energy-conservation special use, industry motor special and frequency-converting control device have simultaneously proposed to upgrade higher requirement with application.Textile industry is as China large electricity consumer, motor year service hours reach more than 7000 hours, become one of industry that energy-efficient motor special series of products emphasis promotes.

The electric system development has become current collection power electronics, motor so far and has been controlled to be the integrated system of one.Because the traditional discrete pattern of domestic employing, the three is manufactured and designed by the different production merchant, the isolated sealing of production link; Cause electric system technical parameter coupling unreasonable; The running difficult coordination, control technology is difficult to general, has reduced the overall operation efficiency of system.Therefore, the motor industrial structure need transform from the electric system production model of single motor production model to electromechanical integration; The popularization of high-efficiency energy-saving technology need transform to the high efficiency development model of electric system integrated products from traditional high efficiency development model of simple pursuit motor.

At present; Because it is not enough that China's electromechanics trade is paid attention to the exploitation of motor product kind, the expansion capability that responds market fast a little less than, cause in numerous application scenarios to replace operation with common electric machine; Cause industry motor customizations rate to make slow progress, it is lower that industry economic benefit and social benefit promote amplitude.In order to improve the load matched characteristic; Realize that electric system efficiently moves; Need to different industries and application scenario focus development motor special and system, break the present situation of using same type motor at present in various application occasions, promote the occupation rate of market of motor special.

In recent years, permanent magnet synchronous motor because of simple in structure, operational efficiency is high, power factor is high, control performance fortunately field of textile machinery obtain very fast development and application.The surface-mount type permanent magnet synchronous motor adopts the conventional magnet structure usually, and the air gap flux density harmonic content is big, influences motor torque characteristic and loss heating, and permanent magnet synchronous motor is restricted in the higher and special application scenario of performance requirement.

In addition, for the control motor normally moves, utilize the transducer that is installed on the machine shaft to obtain rotor-position and tach signal usually, thereby realize field orientation and rotational speed regulation.But the use of transducer has increased on the one hand system cost, some high-precision sensor price even occupy the main share of cost, and the increase of system bulk has limited its application in the limited space occasion, and transducer is had relatively high expectations to installation accuracy; Reduced system reliability on the other hand; Lead increases between motor and control system; Make system be subject to external interference, and its precision is subject to influences such as ambient temperature, humidity, dust, vibrations, therefore; For the textile motor operational environment of high temperature, high humidity, many dirt, the electric system of belt sensor is used and is restricted.

Summary of the invention

Technical problem to be solved by this invention is; A kind of collaborative and matching properties that can improve between each parts of electric system is provided; Expand permanent magnet synchronous motor in the application space of textile industry, realize the energy-efficient textile motor of Halbach array permanent magnetism of the energy-efficient target of electric system.

The technical scheme that the present invention adopted is: the energy-efficient textile motor of a kind of Halbach array permanent magnetism; Comprise: Halbach array permanent magnetism textile motor, controller and detection and sample circuit; Described Halbach array permanent magnetism textile motor is to be made up of converter and Halbach array permanent magnetism synchronous motor one; The output of described converter connects Halbach array permanent magnetism synchronous motor and detection and sample circuit respectively; Described detection is connected controller with the output of sample circuit, and described controller connects converter.

The two PWM voltage source type converters of described converter using; The signal conditioning circuit that described controller includes driving and protective circuit, the DSP governor circuit that is connected with driving and protective circuit and links to each other with the DSP governor circuit; Wherein, The signal input part joint detection of said signal conditioning circuit and the output of sample circuit, the signal output part of said DSP governor circuit connects driving and protective circuit, and the output of described driving and protective circuit connects converter.

Described driving and protective circuit include chip for driving U1, and the signal input part of said chip for driving U1 connects the signal output part of DSP governor circuit, and three signal output parts of said chip for driving U1 connect the signal input part of converter.

Described converter using matrix converter; The signal conditioning circuit that described controller includes driving and protective circuit, the DSP governor circuit that is connected with driving and protective circuit and links to each other with the DSP governor circuit; Wherein, The signal input part joint detection of said signal conditioning circuit and the output of sample circuit, the signal output part of said DSP governor circuit connects driving and protective circuit, and the output of described driving and protective circuit connects converter.

Described driving and protective circuit include chip for driving U2, and the signal input part IN of said chip for driving U2 connects the signal output part of DSP governor circuit, and the signal output part of said chip for driving U2 is connected the signal input part of converter with earth terminal.

Described detection and sample circuit are current detecting unit; Described current detecting unit adopts current sensor U3; The IN end of described current sensor U3 connects the current output terminal of converter; The OUT end of said current sensor U3 connects the input of Halbach array permanent magnetism synchronous motor 12, and the power input of said current sensor U3 connects the externally fed power supply, and the signal output part Imeas of said current sensor U3 connects signal conditioning circuit.

Described Halbach array permanent magnetism synchronous motor includes the motor shaft that outwards set gradually by the center, stator and armature winding, air-gap, continous way Halbach permanent magnet array and rotor on the stator; Described armature winding adopts Y-connection, short distance winding, and described rotor adopts the surface-mount type permanent magnet.

Described Halbach array permanent magnetism synchronous motor includes the motor shaft that outwards set gradually by the center, stator and armature winding, air-gap, segmented Halbach permanent magnet array and rotor on the stator; Described armature winding adopts Y-connection, short distance winding, and described rotor adopts the surface-mount type permanent magnet.

The energy-efficient textile motor of Halbach array permanent magnetism of the present invention, it is following to have a following beneficial effect:

1, Halbach array permanent magnetism synchronous machine of the present invention has sinusoidal degree air gap flux density preferably; Reduced torque pulsation; Help improving the positioning accuracy of motor; Halbach array permanent magnetism synchronous machine has the magnetic of gathering effect simultaneously, has increased air gap flux density, helps improving the power density and the torque density of motor.In addition, Halbach array permanent magnetism synchronous machine has good rotor magnetic circuit self-shileding effect, and therefore, rotor has adopted nonferromagnetic material, has dwindled motor volume, has alleviated motor weight, has reduced moment of inertia, helps improving the capability of fast response of motor.

2, Halbach array permanent magnetism synchronous machine of the present invention adopts outer-rotor structure; Motor and load directly are coupled; Save the transmission mechanism between motor and load, reduced the system capacity loss, improved system's conversion efficiency; Reduce the system maintenance cost simultaneously, improved system's operational reliability.Because permanent magnet is installed in rotor inner surface along circumference, receives the influence of centrifugal force, permanent magnet receives outside active force, and it is combined on the rotor securely, thereby need not to take special reinforcement measure, has reduced manufacturing cost.In addition, adopt outer-rotor structure to improve the influence of the fluctuation of load, improved the electric machine temperature rise problem simultaneously, improved the anti-irreversible degaussing ability of permanent magnet the motor runnability.

3, controller adopts no transducer control technology to obtain rotor-position and rotary speed information; Saved mechanical pick-up device; Practiced thrift system cost; Dwindled system bulk, strengthened system reliability and antijamming capability, make motor can be under the textile motor exemplary operation environment of high temperature, high humidity, many dirt reliability service.

Description of drawings

Fig. 1 is the structural representation of energy-efficient textile motor first embodiment of Halbach array permanent magnetism of the present invention;

Fig. 2 is the structural representation of energy-efficient textile motor second embodiment of Halbach array permanent magnetism of the present invention;

Fig. 3 is a drive circuit schematic diagram among energy-efficient textile motor first embodiment of Halbach array permanent magnetism of the present invention;

Fig. 4 is a drive circuit schematic diagram among energy-efficient textile motor second embodiment of Halbach array permanent magnetism of the present invention;

Fig. 5 is a current detection circuit schematic diagram in the energy-efficient textile motor of Halbach array permanent magnetism of the present invention;

Fig. 6 is the structural representation of first embodiment of Halbach array permanent magnetism synchronous motor among the present invention;

Fig. 7 is the structural representation of Halbach array permanent magnetism synchronous motor second embodiment among the present invention.

Among the figure

1:Halbach array permanent magnetism textile motor 2: controller

3: detect and sample circuit 11: converter

12:Halbach array permanent magnetism synchronous motor 13: guard signal

21: drive and protective circuit 22:DSP governor circuit

23: signal conditioning circuit 24: drive and protective circuit

121: rotor 122a: continous way Halbach permanent magnet array

122b: segmented Halbach permanent magnet array 123: air-gap

124: armature winding 125: armature winding

126: motor shaft

Embodiment

Below in conjunction with embodiment and accompanying drawing the energy-efficient textile motor of Halbach array permanent magnetism of the present invention is made detailed description.

Like Fig. 1, shown in Figure 2; The energy-efficient textile motor of Halbach array permanent magnetism of the present invention; Comprise: Halbach array permanent magnetism textile motor 1, controller 2 and detection and sample circuit 3; Described Halbach array permanent magnetism textile motor 1 is to be made up of converter 11 and Halbach array permanent magnetism synchronous motor 12 one; The output of described converter 11 connects Halbach array permanent magnetism synchronous motor 12 and detection and sample circuit 3 respectively, and described detection is connected controller 2 with the output of sample circuit 3, and described controller 2 connects converter 11.Controller described in the present invention adopts no transducer control technology to obtain rotor-position and rotary speed information, and according to stator current, voltage signal that actual detected goes out, produces the signal of control change device power component conducting and shutoff, realizes motor speed.Converter 11 and Halbach array permanent magnetism synchronous motor 12 have been realized integrated, have reasonable, accurate technique parameter matching characteristic.

As shown in Figure 1; Described converter 11 adopts two PWM voltage source type converters; Described controller 2 includes and drives and protective circuit 21, the DSP governor circuit 22 that is connected with driving and protective circuit 21 and the signal conditioning circuit 23 that links to each other with DSP governor circuit 22; Wherein, The signal input part joint detection of said signal conditioning circuit 23 and the output of sample circuit 3, the signal output part of said DSP governor circuit 22 connects driving and protective circuit 24, and the output of described driving and protective circuit 21 connects converter 11.

For improving system's operational precision and processing speed; Dsp chip adopts the TMS320F281x series or the TMS320F2833x series of products of TI company in the present embodiment; Be used to realize signal processing and controlled function, like A/D conversion, rotor-position and velocity estimation, electric current and speed double closed-loop control etc.

The two PWM voltage source type converter topological structures that adopt in the present embodiment are a kind of ac-dc-ac inverter circuit forms, and rectification side and inversion side are PWM full-controlled bridge circuit, and control mode is flexible, all can realize vector control.Because energy can two-way flow, system has good four quadrant running characteristic.The intermediate dc link that connects rectification side and inversion side pwm circuit adopts big capacitor filtering to obtain direct voltage stably.Control PWM rectification circuit can make input current near sinusoidal wave, and input power factor is adjustable, thereby can be realized the operation of input voltage same-phase.Rectification side control strategy mainly contains Direct Current Control and indirect current control, and its main distinction is whether to introduce the alternating current feedback.Direct Current Control is through introducing the alternating current feedback; Make it follow the tracks of the input current command value; Reach input power factor and be 1 effect, mainly have methods such as hysteresis current control, fixed switching frequency Current Control, predicted current control and direct Power Control.Indirect current control is amplitude and the phase place through control input end voltage, thus the amplitude and the phase place of control input current, so also be called phase place and amplitude control.Inversion side control strategy mainly contains constant voltage and frequency ratio control, slip frequency controlled, vector control, direct torque control etc.

When described converter 11 adopts as shown in Figure 1 two PWM voltage source type converter; Described driving and protective circuit 21 adopt integrated IGBT driver module; As shown in Figure 3; Include chip for driving U1; As the model that adopts MITSUBISH company is that the chip for driving of M57962AL constitutes the IGBT drive circuit, and the signal input part pin 14 of said chip for driving U1 connects the signal output part of DSP governor circuits 22, and three signal output part C of said chip for driving U1, G, E connect the signal input part of converter 11.

As shown in Figure 2; Described converter 11 adopts matrix converter; Described converter 11 adopts matrix converter; Described controller 2 includes and drives and protective circuit 24, the DSP governor circuit 22 that is connected with driving and protective circuit 24 and the signal conditioning circuit 23 that links to each other with DSP governor circuit 22, wherein, and the signal input part joint detection of said signal conditioning circuit 23 and the output of sample circuit 3; The signal output part of said DSP governor circuit 22 connects driving and protective circuit 24, and the output of described driving and protective circuit 24 connects converter 11.

The matrix converter topological structure that adopts in the present embodiment; It is a kind of ac-ac frequency changer circuit form; 3 * 3 modulation matrixs of forming by 9 two-way power switch elements; Each phase load can be connected with the arbitrary of power supply, modulation when can realize output voltage and input current through the one-level Power Conversion.Can realize the energy two-way flow equally, guarantee motor realization four quadrant running.Output voltage is sinusoidal wave, and frequency is not influenced by mains frequency.Can modulate Sinusoidal Input Currents, the input power factor and the power-factor of load are irrelevant, can realize unity power factor operation or reactive power compensation operation.No intermediate dc link and filter capacitor, compact conformation, volume is little, transmission of power density is big, efficient is high.

When described converter 11 adopts matrix converter as shown in Figure 2; Described driving and protective circuit 24 are as shown in Figure 4; Include chip for driving U2; As to adopt MICROCHIP company model be that the chip for driving of TC4429 constitutes the IGBT drive circuit, and the signal input part IN of said chip for driving U2 connects the signal output part of DSP governor circuit 22, and the signal output part G of said chip for driving U2 and earth terminal GND connect the signal input part of converter 11.

Protective circuit relates generally to overvoltage crowbar, current foldback circuit, virtual protection circuit, light-coupled isolation protection etc.

Detection described in the present embodiment and sample circuit 3 adopt no transducer control technology to obtain rotor-position and velocity information, the main existence based on the no sensor control method of motor ideal model and the no sensor control method that injects based on signal.Basic principle is: the former obtains rotor-position and velocity information according to the relation of rotor-position, speed and voltage, electric current, like direct computing method, back-emf integration method, model reference adaptive method and observer method etc.; The physical characteristic of The latter electric machine structure, the harmonic signal of voltage, electric current calculates rotor-position and velocity information when being in diverse location according to rotor.In addition, intelligence control methods such as neural net, fuzzy control, expert system, adaptive control also can be used for estimated rotor Position And Velocity information.

Described detection and sample circuit 3 are current detecting unit; As shown in Figure 5; Described current detecting unit adopts current sensor U3, and the IN end of described current sensor U3 connects the current output terminal of converter 11, and the OUT end of said current sensor U3 connects the input of Halbach array permanent magnetism synchronous motor 12; The power input of said current sensor U3 connects the externally fed power supply, and the signal output part Imeas of said current sensor U3 connects signal conditioning circuit 23.It is the current sensor of LAH25-NP that present embodiment adopts LEM company model.

Halbach array permanent magnetism synchronous motor of the present invention is according to the Halbach array permanent magnetism synchronous motor of textile motor relevant criterion and specific (special) requirements thereof design, has characteristic: 1. higher running efficiency and power factor; 2. not only have higher efficient, and in the range of operation of broad, also have higher efficient at specified operating point; 3. stronger overload capacity.

As shown in Figure 6; Described Halbach array permanent magnetism synchronous motor 12 includes the motor shaft 126 that outwards set gradually by the center, stator 125 and armature winding 124, air-gap 123, continous way Halbach permanent magnet array 122a and rotor 121 on the stator 125; Described armature winding 124 adopts Y-connection, short distance winding, and described rotor 121 adopts the surface-mount type permanent magnet.

As shown in Figure 7; Described Halbach array permanent magnetism synchronous motor 12 includes the motor shaft 126 that outwards set gradually by the center, stator 125 and armature winding 124, air-gap 123, segmented Halbach permanent magnet array 122a and rotor 121 on the stator 125; Described armature winding 124 adopts Y-connection, short distance winding, and described rotor 121 adopts the surface-mount type permanent magnet.

Halbach array permanent magnetism synchronous motor 12 among the present invention, rotor 121 adopts the surface-mount type permanent magnet, and promptly Halbach array permanent magnet 122a or 122b directly in the face of air-gap 123, set up main field.The Halbach array permanent magnet has two kinds of implementations; Be Halbach array permanent magnet 122b among Halbach array permanent magnet 122a and Fig. 4 among Fig. 3; The former magnetizes according to the certain rules consecutive order to the permanent-magnetic clamp that an integral body does not magnetize, and the latter is that the permanent magnet with a plurality of pre-magnetizings forms according to certain arrangement regulation sequential combination.

The Halbach array permanent magnetism synchronous motor that adopts among the present invention has good rotor magnetic circuit self-shileding effect, and therefore, rotor has adopted nonferromagnetic material; Dwindled motor volume; Alleviate motor weight, reduced moment of inertia, improved the capability of fast response of motor.Simultaneously, the air gap flux density sine degree of Halbach array permanent magnetism synchronous machine is good, has reduced torque pulsation, has improved the positioning accuracy of motor, and has had the magnetic of gathering effect, and air gap flux density is big, has improved the power density and the torque density of motor.

The armature winding 124 of the stator 125 of the Halbach array permanent magnetism synchronous motor that adopts among the present invention adopts short distance winding mode, can weaken the winding harmonic magnetic potential.

The Halbach array permanent magnetism synchronous motor that adopts among the present invention is designed to outer-rotor structure; Be that rotor 121 is positioned at stator 125 outsides, can have saved intermediate transmission mechanism directly with motor and load coupling; Reduced power transmission loss; Improve system's conversion efficiency, reduced the system maintenance cost simultaneously, improved system's operational reliability.In addition, because Halbach array permanent magnet 122a or 122b are installed in rotor inner surface along circumference, during the motor rotation; Receive the influence of centrifugal force, permanent magnet receives outside active force, makes it be combined on the rotor securely; Thereby need not to take special reinforcement measure, reduced manufacturing cost.And adopt outer-rotor structure to improve motor operation stability and antijamming capability, improved the electric machine temperature rise problem, improved the anti-irreversible degaussing ability of permanent magnet.

Detailed description that the present invention has been center deployment with embodiment; The imbody of described optimal way or some characteristic; Be to be understood that for this specification only be to describe the present invention through the mode that provides embodiment; In fact on some details of composition, structure and use, can change to some extent, comprise the combination and the assembly of parts, these distortion and application all should belong in the scope of the present invention.

Claims (8)

1. energy-efficient textile motor of Halbach array permanent magnetism; It is characterized in that; Comprise: Halbach array permanent magnetism textile motor (1), controller (2) and detection and sample circuit (3); Described Halbach array permanent magnetism textile motor (1) is to be made up of converter (11) and Halbach array permanent magnetism synchronous motor (12) one; The output of described converter (11) connects Halbach array permanent magnetism synchronous motor (12) and detection and sample circuit (3) respectively, and described detection is connected controller (2) with the output of sample circuit (3), and described controller (2) connects converter (11).
2. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 1; It is characterized in that; Described converter (11) adopts two PWM voltage source type converters; Described controller (2) includes and drives and protective circuit (21), the DSP governor circuit (22) that is connected with driving and protective circuit (21) and the signal conditioning circuit (23) that links to each other with DSP governor circuit (22); Wherein, The output of the signal input part joint detection of said signal conditioning circuit (23) and sample circuit (3), the signal output part of said DSP governor circuit (22) connects driving and protective circuit (24), and the output of described driving and protective circuit (21) connects converter (11).
3. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 2; It is characterized in that; Described driving and protective circuit (21) include chip for driving U1; The signal input part of said chip for driving U1 connects the signal output part of DSP governor circuit (22), and three signal output parts (C, G, E) of said chip for driving U1 connect the signal input part of converter (11).
4. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 1; It is characterized in that; Described converter (11) adopts matrix converter; Described controller (2) includes and drives and protective circuit (24), the DSP governor circuit (22) that is connected with driving and protective circuit (24) and the signal conditioning circuit (23) that links to each other with DSP governor circuit (22); Wherein, The output of the signal input part joint detection of said signal conditioning circuit (23) and sample circuit (3), the signal output part of said DSP governor circuit (22) connects driving and protective circuit (24), and the output of described driving and protective circuit (24) connects converter (11).
5. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 2; It is characterized in that; Described driving and protective circuit (24) include chip for driving U2; The signal input part IN of said chip for driving U2 connects the signal output part of DSP governor circuit (22), and the signal output part of said chip for driving U2 (G) is connected the signal input part of converter (11) with earth terminal (GND).
6. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 1; It is characterized in that; Described detection and sample circuit (3) are current detecting unit; Described current detecting unit adopts current sensor U3, and the IN end of described current sensor U3 connects the current output terminal of converter (11), and the OUT end of said current sensor U3 connects the input of Halbach array permanent magnetism synchronous motor 12; The power input of said current sensor U3 connects the externally fed power supply, and the signal output part Imeas of said current sensor U3 connects signal conditioning circuit (23).
7. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 1; It is characterized in that; Described Halbach array permanent magnetism synchronous motor (12) includes the motor shaft (9) that outwards set gradually by the center, stator (8) and armature winding (7), air-gap (123), continous way Halbach permanent magnet array (122a) and rotor (121) on the stator (8); Described armature winding (7) adopts Y-connection, short distance winding, and described rotor (121) adopts the surface-mount type permanent magnet.
8. the energy-efficient textile motor of Halbach array permanent magnetism according to claim 1; It is characterized in that; Described Halbach array permanent magnetism synchronous motor (12) includes the motor shaft (9) that outwards set gradually by the center, stator (8) and armature winding (7), air-gap (123), segmented Halbach permanent magnet array (122a) and rotor (121) on the stator (8); Described armature winding (7) adopts Y-connection, short distance winding, and described rotor (121) adopts the surface-mount type permanent magnet.
CN2012101763862A 2012-05-31 2012-05-31 Halbach array permanent magnetic efficient energy-saving textile motor CN102684400A (en)

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Application publication date: 20120919