CN106130199A - New iron-based non-crystaline amorphous metal aircraft permanent magnet synchronous motor and control system - Google Patents

New iron-based non-crystaline amorphous metal aircraft permanent magnet synchronous motor and control system Download PDF

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Publication number
CN106130199A
CN106130199A CN201610375384.4A CN201610375384A CN106130199A CN 106130199 A CN106130199 A CN 106130199A CN 201610375384 A CN201610375384 A CN 201610375384A CN 106130199 A CN106130199 A CN 106130199A
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China
Prior art keywords
motor
rotor
stator
permanent magnet
amorphous metal
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CN201610375384.4A
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Chinese (zh)
Inventor
王书礼
康桂文
鲍洁秋
吕大为
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Shenyang Aerospace University
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LIAONING GENERAL AVIATION ACADEMY
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Priority to CN201610375384.4A priority Critical patent/CN106130199A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/02Details of the magnetic circuit characterised by the magnetic material
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/02Casings or enclosures characterised by the material thereof
    • 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
    • H02P6/085Arrangements for controlling the speed or torque of a single motor in a bridge configuration

Abstract

The invention discloses new iron-based non-crystaline amorphous metal aeroplane motor, including motor stator, stator core, winding, rotor, support, end cap;Described stator is provided with trapezoidal fluting, and stator core is arranged on support, and winding is arranged in the trapezoidal fluting of stator, and rotor includes axle, rotor framework, permanent magnet, yoke, and rotor is arranged in stator, and rotor is connected by bearing and end cap are fixing;Permanent magnet is arranged to annular tile pattern and described permanent magnet is arranged on the surface of rotor;Described end cap is arranged on the end face of support.The present invention has advantage energy-efficient, that low noise, security performance are high;The rotor of the present invention can produce enough magnetic field intensities in Fe-based amorphous alloy aeroplane motor air gap, and interacting with stator winding produces torque to drive the rotation of self.

Description

New iron-based non-crystaline amorphous metal aircraft permanent magnet synchronous motor and control system
Technical field
The invention belongs to aeroplane motor field, be related specifically to new iron-based non-crystaline amorphous metal aeroplane motor and control system System.
Background technology
Since the twenties in 19th century, First permanent magnet motor occurs in the world, to 19 end of the centurys, various D.C. & A.C. powers The fundamental type of machine and basic theories thereof and method for designing, the most all have built up, but also only reside within reason The stage of opinion research.To 20th century along with industry high speed development, constantly to motor propose various renewals, higher want Ask, and the development that automatization's aspect is advanced by leaps and bounds promotes to control motor and specific type of electric machine development is the rapidest.When this In phase, electromagnetic process, heating process and the physical process thereof of motor interior being expanded in-depth study, area of computer aided sets Meter technology is widely used, and really makes multiple target variable element Global Optimum Design be possibly realized, secondly plus structure and Updating of technique, new technology measure includes the insulation of coil and the application of forming technique, and the japanning of stalloy automatization is automatically The application changed, the application etc. of motor rotor cast aluminium technology, last new material was widely used in this period, electronic Machine ferromagnetic material uses cold-reduced silicon sheet, and permanent magnet material uses rare-earth magnet, neodymium iron boron magnetic body, and insulant uses polyester Film, organosilicon coating, Muscovitum etc..The power density promoting motor is greatly improved, 19 the end of the century motor power density be 60kg/ KW, and it is reduced to 10kg/kW to 20 century 70s, meanwhile, the volume of motor decreases more than 50%.
Now with developing rapidly of computer-assisted analysis and technology of numerical simulation, motor has been developed as one The subject of comparative maturity, motor is the most widely used in life and production.But, current motor is still deposited In height loss, the problem of low magnetic conductivity, seriously constrain the raising of motor powered function metric density;In addition many fields Motor speed adjusting scope needs to reach 200~600r/min, but traditional electrical motors is less than such altofrequency, the most by force Row reaches to cause sharply increasing of the loss of ferromagnetic material so that motor efficiency reduces, and brings to the design of cooling system The biggest difficulty.
Summary of the invention
The weak point that the present invention exists to overcome prior art, it is proposed that new iron-based non-crystaline amorphous metal aeroplane motor And control system, solve the high loss of motor, the problem of low magnetic conductivity in prior art.
The present invention is achieved through the following technical solutions: new iron-based non-crystaline amorphous metal aeroplane motor, including stator, Stator core, winding, rotor, support, end cap;Described stator is provided with trapezoidal fluting, and described stator core is arranged on support On, described winding is arranged in the trapezoidal fluting of stator, and described rotor includes axle, rotor framework, permanent magnet, yoke, described magnetic Yoke is placed in the groove of rotor framework, and bonds with silica gel, and described permanent magnet is placed in the groove of yoke, and bonds with silica gel; Described rotor is arranged in stator, and described rotor is connected by bearing and end cap are fixing;Described permanent magnet is arranged to annular tile Shape pattern and described permanent magnet are arranged on the surface of rotor;It is provided with gap between described stator core and described rotor;Described End cap is arranged on the end face of support.
As preferably, described stator uses 2605SA1 type iron-base amorphous alloy material.
As preferably, described winding uses formed coil winding.
As preferably, described permanent magnet uses NdFeB type Nd-Fe-B permanent magnet, and uses surface-mount type peace on described stator Dress.
As preferably, described axle selects 34CrMo4 steel to make, and described rotor framework selects T351 aluminium bar material to make, institute Stating yoke selects DW470-50 stalloy to make.
As preferably, described support and end cap all select 6082 type aircraft aluminum to make.
The control system of a kind of new iron-based non-crystaline amorphous metal aeroplane motor includes:
Step 1: determine motor performance parameter;As shown in Table 1:
Title Index
Motor types Fe-based amorphous alloy permasyn morot
Rated power 30kW
Rated speed 3200r/min
Number of pole-pairs 20
The number of phases Three-phase
Winding connection 14Y2
Nominal torque 90N·m
Torque capacity 120N·m
Radiating mode Convection current is air-cooled
Table one: motor performance parameter list;
Step 2: determine electric motor structure parameter;As shown in Table 2:
Table two: electric motor structure parameter list;
Step 3: control system analysis;According to the structural parameters of motor, utilize in ANSYS Maxwell software RMxport module Fe-based amorphous alloy motor is carried out transient field, static field finite element modeling with solve, split-phase motor Field amount distribution, magnetoelectricity stream, moment, loss when starting under no load and specified operation;
Described step 3 also includes:
Step 3.1: set up motor model;According to the structural parameters of motor, in RMxprt module, quickly determine electricity The electromagnetism of motivation and structure design, be then introduced in ANSYS Maxwell 2D setting up two dimensional finite element phantom, finally Use the dynamic characteristic of transient state solver split-phase motor,
Step 3.2: grid dissects;Select Maxwell software, static field and the transient field of motor are carried out from inside to outside, From dredging close mesh generation, thus obtain the static field of motor and the working characteristics of transient field;
Step 3.3: motor external control circuit is set;Motor external control circuit uses three-phase bridge wye connection Inverter structure, three-phase 6 state control;Maxwell Circuit Editor editor module completes to external control electricity The setting on road, including: rotor electrical angle, pulse width and power device turn-on sequence are arranged;
Determine rotor electrical angle, within each electricity cycle, rotor electrical angle αpIt is represented by as shown in formula (1):
αP=360 °/P (1)
Wherein P is number of pole-pairs, motor designs parameter understanding motor number of pole-pairs is 20, therefore rotor electricity
Angle [alpha]P=360 °/20=18 °
Determine that pulse width, pulse width are exactly electrical angle α being often conducted in each electricity cyclew, set by 120 ° of conductings Meter, the electrical angle of single-phase conducting is represented by as shown in formula (2):
Determining power device turn-on sequence, this motor external control circuit uses the inverter of three-phase bridge wye connection Structure, three-phase 6 state controls, and therefore, the commutation time delay between each state is as shown in formula (3):
α d = α p 6 - - - ( 3 )
α in formuladFor commutation time delay, i.e. power tube State Commutation time delay;
Initial phase angleHere initial phase angle refers to the initial phase angle of A opposite potential, therefore corresponds to A+, C-, B+, Electrical angle α of A-, C+, B-wIt is followed successively by 7.5 °, 22.5 °, 37.5 °, 52.5 °, 67.5 °, 82.5 °;
Step 3.4: the dynamic characteristic of motor, uses 1/4 model of motor to calculate, and can save computing money Source.
In the present invention, support and end cap are as Fe-based amorphous alloy aeroplane motor stator and the fixing device of bearing, it is ensured that The heat-sinking capability that Fe-based amorphous alloy aeroplane motor is good.
Axis of the present invention selects 34CrMo4 steel to make, it is ensured that the intensity of Fe-based amorphous alloy aeroplane motor axle;Rotor bone Frame selects T351 aluminium bar material to make, it is ensured that intensity and weight demands.
In the present invention, support and end cap all select 6082 type aircraft aluminum to make, it is ensured that Fe-based amorphous alloy aviation is electronic The intensity of machine and heat radiation.
Fe-based amorphous alloy permasyn morot of the present invention selection iron-base amorphous alloy material is as stator core, with biography System motor is compared has advantage energy-efficient, that low noise, security performance are high.
Compared with prior art, the beneficial effects of the present invention is: (1) winding uses and is concentrated into type coil winding system Making, simply, it is easy to accomplish automated production, concordance is good, it is also possible to reduction end turn and the damage that effectively winding resistance causes Consumption;(2) rotor of the present invention can produce enough magnetic field intensities, with stator in Fe-based amorphous alloy aeroplane motor air gap Winding interacts and produces torque to drive the rotation of self;(3) permanent magnet uses surface-mount type to install on stator, it is simple to machinery Processing, rotary inertia is little, simple in construction;(4) energy-efficient, low noise, security performance are high, can be widely used in Aero-Space, The fields such as military equipment, electronic equipment, the vehicles, generating equipment;(5) disc type that iron-base amorphous alloy material makes is used forever Magnetic-synchro motor, it is possible to reduce the high frequency iron loss of motor, improves motor efficiency, optimizes design of Cooling System, and iron-based is non- The application of peritectic alloy material solves the permasyn morot bottleneck problem in the power systems art application of aviation.
Accompanying drawing
Fig. 1: for the stator structure figure of the present invention;
Fig. 2: for the winding construction figure of the present invention;
Fig. 3: for the rotor structure figure of the present invention;
Fig. 4: for support and the structure chart of end cap of the present invention;
Fig. 5: for the one new iron-based non-crystaline amorphous metal aeroplane motor structure chart of the present invention;
Fig. 6: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor Transient Analysis flow process;
Fig. 7: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor two dimensional model;
Fig. 8: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor subdivision graph;
Fig. 9: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor external control circuit;
Figure 10: be distributed for the present invention new iron-based non-crystaline amorphous metal aeroplane motor zero load magnetic line of force;
Figure 11: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor zero load magnetic flux density cloud atlas;
Figure 12: load magnetic flux density cloud atlas for the present invention new iron-based non-crystaline amorphous metal aeroplane motor;
Figure 13: load torque waveform;
Figure 14: load speed waveform;
Figure 15: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor mechanical characteristic;
Figure 16: for the present invention new iron-based non-crystaline amorphous metal aeroplane motor rotating speed and efficiency curve.
Figure number illustrate: 1 stator, 2 windings, 3 axles, 4 rotor frameworks, 5 yokes, 6 permanent magnets, 7 end caps, 8 supports, 9 turns Son, 10 trapezoidal flutings.
Specific embodiment
Describing the detailed description of the invention of the present invention below in conjunction with the accompanying drawings in detail, the content of detailed description of the invention is not as right The restriction of protection scope of the present invention.
In conjunction with Fig. 1-Fig. 5, new iron-based non-crystaline amorphous metal aeroplane motor, including stator 1, stator core, winding 2, rotor 9, support 8, end cap 7;Described stator 1 is provided with trapezoidal fluting 10, and described stator core is arranged on support 8, and described winding 2 is pacified Being contained in the trapezoidal fluting 10 of stator 1, described rotor 9 includes axle 3, rotor 9 skeleton 4, permanent magnet 6, yoke 5;Described yoke 5 is put Putting in the groove of rotor 9 skeleton 4, and bond with silica gel, described permanent magnet 6 is placed in the groove of yoke 5, and bonds with silica gel; Described rotor 9 is arranged in stator 1, and described rotor 9 holds be connected fixing with end cap 7 by axle 3;Described permanent magnet 6 arranges cyclization Shape tile pattern and described permanent magnet 6 are arranged on the surface of rotor 9;It is provided with between described stator 1 iron core and described rotor 9 Gap;Described end cap 7 is arranged on the end face of support 8.
Described stator 1 uses 2605SA1 type iron-base amorphous alloy material.
Described stator 1 uses 2605SA1 type iron-base amorphous alloy material;Have compared with conventional motors energy-efficient, The advantage that low noise, security performance are high.
Described winding 2 uses formed coil winding 2;Simply, it is easy to accomplish automated production, concordance is good, it is also possible to subtract Little end turn and the loss that effectively winding 2 resistance causes.
Described permanent magnet 6 uses NdFeB type Nd-Fe-B permanent magnet 6, and uses surface-mount type to install on described stator 1; Being easy to machining, rotary inertia is little, simple in construction.
Described axle 3 selects 34CrMo4 steel to make, it is ensured that the intensity of Fe-based amorphous alloy aeroplane motor axle 3;Described rotor 9 skeletons 4 select T351 aluminium bar material to make, it is ensured that intensity and weight demands;Described yoke 5 selects DW470-50 stalloy system Become.
Described support 8 and end cap 7 all select 6082 type aircraft aluminum to make;Ensure that Fe-based amorphous alloy aeroplane motor Intensity and heat radiation.
The control system of new iron-based non-crystaline amorphous metal aeroplane motor includes:
Step 1: determine motor performance parameter;As shown in Table 1:
Title Index
Motor types Fe-based amorphous alloy hydromagnetic synchronous motor
Rated power 30kW
Rated speed 3200r/min
Number of pole-pairs 20
The number of phases Three-phase
Winding connection 14Y2
Nominal torque 90N·m
Torque capacity 120N·m
Radiating mode Convection current is air-cooled
Table one: motor performance parameter list
Step 2: determine electric motor structure parameter;As shown in Table 2:
Table two: electric motor structure parameter list
Step 3: control system analysis;According to the structural parameters of motor, utilize in ANSYS Maxwell software RMxport module Fe-based amorphous alloy motor is carried out transient field, vortex field finite element modeling with solve, split-phase motor Field amount distribution, magnetoelectricity stream, moment, loss when starting under no load and specified operation;
Described step 3 also includes:
Step 3.1: set up motor model;According to the rated power P in table oneN, rated voltage VN, rated speed nN, volume Determine torque TNPerformance indications carry out the structural parameters of motor and calculate, and obtain the electric motor structure parameter of table two, according to motor Structural parameters, in RMxprt module, quickly determine the electromagnetism of motor and structure design, be then introduced into ANSYS Maxwell 2D sets up two dimensional finite element phantom, finally uses the dynamic characteristic of transient state solver split-phase motor, knot Close Fig. 6, electric motor structure parameter shown in table 2 is input in RMxprt module, completes Fe-based amorphous alloy synchronous permanent-magnet motor The foundation of machine two dimensional model, as shown in Figure 7;Then each parameter is resolved, Solutions obtains the analysis of motor Result and various characteristic curve, can revise parameters easily according to these data, repeatedly resolve, obtain prioritization scheme;
Step 3.2: grid dissects;In conjunction with Fig. 8, select Maxwell software, the static field of motor and transient field are carried out from Interior to outward, from dredging close mesh generation, thus obtain the static field of motor and the working characteristics of transient field;
Step 3.3: combine Fig. 9, arranges motor external control circuit;Motor external control circuit uses three-phase bridge The inverter structure of wye connection, three-phase 6 state controls;Maxwell Circuit Editor editor module completes externally The setting of portion's control circuit, including: rotor electrical angle, pulse width and power device turn-on sequence are arranged;
Determine rotor electrical angle, within each electricity cycle, rotor electrical angle αpIt is represented by as shown in formula (1):
αP=360 °/P (1)
Wherein P is number of pole-pairs, motor designs parameter understanding motor number of pole-pairs is 20, therefore rotor electricity
Angle [alpha]P=360 °/20=18 °
Determine that pulse width, pulse width are exactly electrical angle α being often conducted in each electricity cyclew, set by 120 ° of conductings Meter, the electrical angle of single-phase conducting is represented by as shown in formula (2):
Determining power device turn-on sequence, this motor external control circuit uses the inverter of three-phase bridge wye connection Structure, three-phase 6 state controls, and therefore, the commutation time delay between each state is as shown in formula (3):
α d = α p 6 - - - ( 3 )
α in formuladFor commutation time delay, i.e. power tube State Commutation time delay;
Initial phase angleHere initial phase angle refers to the initial phase angle of A opposite potential, therefore corresponds to A+, C-, B+, Electrical angle α of A-, C+, B-wSecondary is 7.5 °, 22.5 °, 37.5 °, 52.5 °, 67.5 °, 82.5 °;
Step 3.4: the dynamic characteristic of motor: use 1/4 model of motor to calculate, can save computing money Source, when motor no-load is analyzed, current excitation source is zero;During motor load, initial velocity is set to 0, actively inertia be set to 0.0559373kg·m2, damped coefficient is set to 0.00590812N_m_sec/rad, load torque is arranged as speed < When 91.91, load torque arranges scope between-3.84948*speed and-32518.2/speed, and negative sign represents direction, volume Determine rotating speed and be set to 3200r min-1, the magnetic line of force of calculated motor no-load is distributed as shown in Figure 10, motor no-load Magnetic flux density cloud atlas as shown in figure 11, the magnetic flux density cloud atlas of motor load, as shown in figure 12;
By the unloaded and magnetic flux density cloud atlas of load, during no-load running, stator teeth magnetic flux density maximum is 1.78112T, yoke portion magnetic flux density maximum is 1.42193T;During load running, teeth portion peakflux density is 2.37812T, electricity Motivation magnetic circuit is not up to saturation, will not be because of magnetic circuit saturated generation problem of temperature rise;
In conjunction with Figure 13 and Figure 14, motor reaches steady statue when 90ms, and now rotating speed is 3249r min-1, it is possible to Meet design of electrical motor relevant criterion requirement;
In conjunction with Figure 15 and Figure 16, when motor speed reaches 3200r min-1Time, the efficiency of motor is 95.2899%, Meet design requirement;
In the present invention, support and end cap are as Fe-based amorphous alloy aeroplane motor stator and the fixing device of bearing, it is ensured that The heat-sinking capability that Fe-based amorphous alloy aeroplane motor is good.
Axis of the present invention selects 34CrMo4 steel to make, it is ensured that the intensity of Fe-based amorphous alloy aeroplane motor axle;Rotor bone Frame selects T351 aluminium bar material to make, it is ensured that intensity and weight demands.
In the present invention, support and end cap all select 6082 type aircraft aluminum to make, it is ensured that Fe-based amorphous alloy aviation is electronic The intensity of machine and heat radiation.
The content of detailed description of the invention for the ease of skilled artisan understands that and use the present invention to describe, and Do not constitute the restriction that the present invention is protected content.Those skilled in the art, can be to this after having read present disclosure Invention is suitably revised.The protection content of the present invention is as the criterion with the content of claim.In the reality without departing from claim In the case of matter content and protection domain, various amendments that the present invention is carried out, change and replacement etc. is all in the protection of the present invention Within the scope of.

Claims (7)

  1. The most new iron-based non-crystaline amorphous metal aeroplane motor, it is characterised in that include stator (1), stator core, winding (2), rotor (9), support (8), end cap (7), trapezoidal fluting (10);Described stator (1) is provided with trapezoidal fluting (10), described stator (1) ferrum Core is arranged on support (8), and described winding (2) is arranged in the trapezoidal fluting (10) of stator (1), and described rotor (9) includes axle (3), rotor framework (4), permanent magnet (6), yoke (5);Described yoke (5) is placed in the groove of rotor framework (4), and uses silica gel Bonding, described permanent magnet (6) is placed in the groove of yoke (5), and bonds with silica gel;Described rotor (9) is arranged on stator (1) In, described rotor (9) is connected by bearing and end cap (7) are fixing;Described permanent magnet (6) is arranged to annular tile pattern and institute State permanent magnet (6) and be arranged on the surface of rotor (9);It is provided with gap between described stator core and described rotor (9);Described end Lid (7) is arranged on the end face of support (8).
  2. New iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1, it is characterised in that described stator (1) is adopted With 2605SA1 type iron-base amorphous alloy material.
  3. New iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1, it is characterised in that described winding (2) is adopted Use formed coil winding.
  4. New iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1, it is characterised in that described permanent magnet (6) Use NdFeB type Nd-Fe-B permanent magnet, and install at described stator (1) upper employing surface-mount type.
  5. New iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1, it is characterised in that described axle (3) is selected 34CrMo4 steel is made, and described rotor bone (4) frame selects T351 aluminium bar material to make, and described yoke (5) selects DW470-50 silicon steel Sheet is made.
  6. New iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1, it is characterised in that described support (8), end Lid (7) all selects 6082 type aircraft aluminum to make.
  7. The control system of new iron-based non-crystaline amorphous metal aeroplane motor the most according to claim 1 includes:
    Step 1: determine motor performance parameter;As shown in Table 1:
    Title Index Motor types Fe-based amorphous alloy hydromagnetic synchronous motor Rated power 30kW Rated speed 3200r/min Number of pole-pairs 20 The number of phases Three-phase Winding connection 14Y2 Nominal torque 90N·m Torque capacity 120N·m Radiating mode Convection current is air-cooled
    Table one: motivation performance parameter;
    Step 2: determine electric motor structure parameter;As shown in Table 2:
    Table two: electric motor structure parameter;
    Step 3: control system analysis;According to the structural parameters of motor, utilize the RMxport in ANSYS Maxwell software Module Fe-based amorphous alloy motor is carried out transient field, static field finite element modeling with solve, split-phase motor zero load rises Move and field amount distribution, magnetoelectricity stream, moment, loss during specified operation;
    Described step 3 also includes:
    Step 3.1: set up motor model;According to the structural parameters of motor, in RMxprt module, quickly determine motor Electromagnetism and structure design, be then introduced in ANSYS Maxwell 2D setting up two dimensional finite element phantom, finally use The dynamic characteristic of transient state solver split-phase motor;
    Step 3.2: grid dissects;Select Maxwell software, static field and the transient field of motor is carried out from inside to outside, from dredging To close mesh generation, thus obtain the static field of motor and the working characteristics of transient field;
    Step 3.3: motor external control circuit is set;Motor external control circuit uses the inverse of three-phase bridge wye connection Become device structure, three phase six state control;Maxwell Circuit Editor editor module completes external control circuit Setting, arrange including: rotor electrical angle, pulse width and power device turn-on sequence;
    Determine rotor electrical angle, within each electricity cycle, rotor electrical angle αpIt is represented by as shown in formula (1):
    αP=360 °/P (1)
    Wherein P is number of pole-pairs, motor designs parameter understanding motor number of pole-pairs is 20, therefore rotor electrical angle βP=360 °/ 20=18 °
    Determine that pulse width, pulse width are exactly electrical angle α being often conducted in each electricity cyclew, by 120 ° of conducting designs, single The electrical angle being conducted is represented by as shown in formula (2):
    Determining power device turn-on sequence, this motor external control circuit uses the inverter knot of three-phase bridge wye connection Structure, three phase six state control, therefore, the commutation time delay between each state is as shown in formula (3):
    α in formuladFor commutation time delay, i.e. power tube State Commutation time delay.
    Initial phase angleHere initial phase angle refers to the initial phase angle of A opposite potential, therefore corresponds to A+, C-, B+, A-, C+, Electrical angle α of B-wIt is followed successively by 7.5 °, 22.5 °, 37.5 °, 52.5 °, 67.5 °, 82.5 °;
    Step 3.4: the dynamic characteristic of motor, uses 1/4 model of motor to calculate, can save calculation resources.
CN201610375384.4A 2016-05-31 2016-05-31 New iron-based non-crystaline amorphous metal aircraft permanent magnet synchronous motor and control system Pending CN106130199A (en)

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