CN104113251B - Wind power generation-used modular electro-magnetic flux switching power generator - Google Patents
Wind power generation-used modular electro-magnetic flux switching power generator Download PDFInfo
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- CN104113251B CN104113251B CN201410271525.9A CN201410271525A CN104113251B CN 104113251 B CN104113251 B CN 104113251B CN 201410271525 A CN201410271525 A CN 201410271525A CN 104113251 B CN104113251 B CN 104113251B
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- soft iron
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- differential protection
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Abstract
The invention provides a wind power generation-used modular electro-magnetic flux switching power generator. The inner part of the wind power generation-used modular electro-magnetic flux switching power generator is composed of a shell, a stator assembly and a rotor assembly. Two sets of windings, that is, an armature winding and an excitation winding, are embedded and placed on the stator assembly; the excitation winding is located at the outer side of the armature winding; the excitation winding is connected with a controller and is connected with a power grid via the controller and a transformer to serve as AC excitation; an electro-magnetic flux switching wind power generator is on one hand connected with the controller and is on the other hand is connected with a boosting transformer via an uncontrolled rectifier and a three-phase inverter to be connected into a power frequency power grid to serve as electric energy output, and the three-phase inverter outputs inversion control signals to the controller; the controller controls the electro-magnetic flux switching wind power generator via excitation current, the stator module is composed of an excitation winding and an armature winding, the excitation winding embedded inside soft iron is arranged above the armature winding, the position of the excitation winding is movable, and an excitation field is changed through controlling the magnitude of the current inside the excitation winding.
Description
Technical field
The present invention relates to a kind of wind power plant, and in particular to a kind of generator structure is improved.
Background technology
As the whole society is given more sustained attention to the energy and environmental problem, the exploitation of regenerative resource are just presenting acceleration
The trend of development.Wind energy relies on as one of the development and application technology grasped by current mankind regenerative resource the most ripe
Its exploitable deposit is big, distributed areas are wide, safety and environmental protection the advantages of, important work is played in Sustainable Socioeconomic Development
With.Regenerative resource Professional Committee of China Association of Resources Comprehensive Utilization issues data display, and China puts into effect within 2011
Installation total capacity be up to 41800MW, become the maximum country of global wind-power electricity generation installed capacity more than the U.S..And the day in the same year
This Fukushima nuclear leakage event, has caused the global deep and profound reflections to new forms of energy safety problem again with thinking so that wind
Status of the exploitation of energy in national new forms of energy strategy highlights increasingly.
Wind generator system is the device that mechanical energy is converted into electric energy, while and motive power is connected with output electric energy
The instrument for connecing, it not only directly influences the quality and efficiency of output electric energy, also has influence on the performance of whole wind electricity conversion system
And structure.Therefore, Chinese scholars have carried out research extensively and profoundly to wind generator system and its part, successively propose mistake
Fast type Induction generation system, double-fed variable speed constant frequency generator system, high-speed permanent magnetic electricity generation system, low-speed direct driving permanent magnet generator system
Polytype wind generator system and its corresponding control strategies such as system, middling speed half directly-drive permanent magnet electricity generation system, make wind-power electricity generation system
The capacity and performance of system is obtained for and is obviously improved, and obtains increasingly extensive application.Take a broad view of at present both at home and abroad oneself put into operation and
The wind generator system researched and developed, can be classified as two big class substantially, and the first kind is with mechanical speed-increasing gear-box as intermediate link
High-speed power generation system, as wind energy is a kind of relatively low energy of energy density, by wind energy drive wind energy conversion system be operated in it is relatively low
Rotating speed（Tens revs/min）, due to number of poles restriction, rotating speed is generally all higher for traditional either synchronously or asynchronously electromotor, therefore such
Type system must carry out speedup to wind energy conversion system rotating speed using multistage gear case, be allowed to be close to the rated speed of asynchronous machine.But increase
Not only volume is big, heavy for fast gear-box, and fault rate is high, needs Jing often to safeguard, is most weak ring in wind generator system
Section；Equations of The Second Kind is the directly-driving wind power generation system for occurring in recent years, eliminates speed increasing gear, therefore has efficiency high, dynamic response
Hurry up, the low advantage of maintenance cost.However, as the straight electromotor that drives works under tens turns per minute of low speed, being to ensure which is defeated
Go out voltage and frequency in normal scope, electromotor is needed using larger rotor diameter and more number of pole-pairs, volume
Greatly, quality weight, design, manufacture, transport and installation to electromotor etc. increased great difficulty.
The content of the invention
The basic object of the present invention is to provide a kind of wind-driven generator, and which has adjustment of field excitation structure, when wind speed changes
When, real-time regulation exciting current can make armature winding output voltage keep constant, constitute direct drive wind power system.And further
There is provided its control principle.
It is further to provide the modular stator with excitation function.
Further, while providing by adjustment of field excitation structure, there is provided a kind of certain in adjustment of field excitation electric current
In the case of, change the machinery of excitation field intensity.
Further, there is provided with wind power generator working environment be adapted high temperature it is anti-demagnetization rotor magnetic pole material and its
Preparation method.
Further, there is provided strengthen the soft magnetic bodies of adjustment of field excitation structure so that excitation field is enhanced, and further
There is provided the soft magnet material being adapted with wind power generator working environment, and further provide its preparation method.
It is most basic in order to solve the problems, such as the present invention, the invention provides a kind of electro-magnetic flux switching electromotor, in which
Portion is made up of generator housing, stator, rotor, and armature winding and Exciting Windings for Transverse Differential Protection double winding, Exciting Windings for Transverse Differential Protection position are embedded on stator
On the outside of armature winding, armature winding accesses common frequency power network and exports as electric energy, Exciting Windings for Transverse Differential Protection connection controller, by a liter buckling
Depressor is connected with electrical network as AC excitation, and on the one hand electro-magnetic flux switching electromotor is connected to controller, on the other hand logical
Cross uncontrollable rectifier bridge and three-phase inverter is connected to booster transformer, three-phase inverter output feedback signal is in controller；
Controller switches electromotor by excitation con-trol electro-magnetic flux again.
Further, Modular electrical magnetic flux used for wind power generation switches electromotor, its stator interior be provided with containing excitation around
The sub- stator modules with armature winding are organized, the Exciting Windings for Transverse Differential Protection is position-movable, the motion simultaneously containing control Exciting Windings for Transverse Differential Protection movement
Controlling organization.
Modular electrical magnetic flux used for wind power generation switching electromotor contains stator assembly and rotor assembly, stator module and
Rotor assembly is arranged concentrically, and the stator module is fixed, and rotor assembly is configured in stator module center, and drive shaft extends
Central hub of the connection rotor assembly to blower fan, rotor assembly of the drive shaft mechanically by a gear-box with electromotor pass through
Mechanical couplings connect.
The stator module includes stator group part annular outer cover, many sub- stator modules from stator module annular outer cover to
The radially inner side of rotor assembly is projected, and remains stationary during the operation that stator module is maintained at electromotor, is electric generator structure
On-rotatably moving part.Many sub- stator modules are embedded in stator module annular outer cover, and sub- stator modules and stator module annular are outer
Shell is made up of ferromagnetic material.
Rotor assembly includes framework and rotor magnetic pole, is circumferentially distributed on framework with multiple rotor magnetic poles, drive shaft
It is supported by within the bearing, so that the stable operation in columnar stator module of rotor assembly so that in stator module
Sub- stator modules and rotor magnetic pole between form radial air gap.
Wind-driven generator body by the stator module being embedded in generator body body and with stator module be coaxially disposed turn
Sub-component is constituted, and stator module is made up of with the sub- stator modules being embedded in silicon steel magnetic conduction framework silicon steel magnetic conduction framework, and son is fixed
Submodule is made up of Exciting Windings for Transverse Differential Protection and armature winding, and the Exciting Windings for Transverse Differential Protection being embedded in soft iron is arranged above armature winding, is passed through
Control to size of current in Exciting Windings for Transverse Differential Protection causes excitation field to produce change.
Exciting Windings for Transverse Differential Protection is embedded in soft iron, and soft iron is arranged in winding cavity, and can in the winding cavity slidably,
Exciting Windings for Transverse Differential Protection is electrically connected by the slip of slide rail armature and excitation con-trol line, so as to slide in soft iron during ensure Exciting Windings for Transverse Differential Protection
Persistently it is powered, it is ensured that adjustment of field excitation effect.
Excitation con-trol line, power input lines connect electromotor by being embedded in generator housing, respectively connection control
System and electric power output system.
Connection member of the ear as Sliding Control under ear on soft iron, soft iron is provided with soft iron, ear under ear, soft iron on soft iron
The axis direction of motor is arranged at, ear end is provided with guide block on soft iron, ear is provided with lower guide block under soft iron, and upper guide block is with
Guide block is connected with slide, so as to ensure that soft iron moving radially along electromotor, the connection of one of upper guide block or lower guide block
There is universal coupling, universal coupling is connected to by regulation connecting rod and is arranged on the universal coupling of ring gear side, turning by ring gear
Move to drive and adjust link motion and then drive soft iron to move along the direction of guide rail, armature winding is entered so as to pass through regulation soft iron
Degree changing impact of the excitation field to armature winding, strengthen or weaken the magnetic field of rotor generation.
Ring gear inner face is provided with internal gear, and outside is provided with outer tooth ring, internal gear be arranged in motor generator housing side
Ring gear seat on ring gear coordinate, the power gear that outer tooth ring and motor drive coordinates, and the both forward and reverse directions of motor turn
It is dynamic, drive the ring gear being arranged on ring gear seat to do circumferential movement by power gear, and then the company of regulation is driven by universal coupling
Bar, then drive soft iron to move reciprocatingly along guide rail by the universal coupling being connected with regulation connecting rod, change excitation field to electricity
The impact of pivot winding.Controller there is excitation con-trol line to be connected with step motor control line two-way control line with generator,
Step is adjusted while Exciting Windings for Transverse Differential Protection current intensity and direction can be adjusted by the analysis of the feedback signal to three-phase inverter
Stepper motor is changing Exciting Windings for Transverse Differential Protection position, and then changes relative intensity of the excitation field with respect to armature winding.
Compared with prior art, beneficial effects of the present invention are：
1) as exciting current can be continuously adjusted, when wind speed changes, real-time regulation exciting current can make armature winding
Output voltage keeps constant, therefore can save step-up gear, constitutes direct drive wind power system;
2) when Exciting Windings for Transverse Differential Protection breaks can not provide excitation field, Exciting Windings for Transverse Differential Protection is cut off, now motor is switching magnetic-resistance electricity
Machine structure, system can run on switched reluctance machines power generation mode, possess certain faults-tolerant control performance;
3), during generator operation, armature output voltage amplitude can keep constant, thus reduce by power electronic devices structure
Into power inverter control difficulty;
4) modular construction of motor stator portion, can provide enough cooling spaces for motor, and be easy to excitation
The modularized design of winding, is thus susceptible to transport and in-site installation.
Description of the drawings
Fig. 1 is the basic embodiment structural representation of the present invention；
Fig. 2 is the basic embodiment control mode schematic diagram of the present invention；
Fig. 3 is the modular embodiment structural representation of the present invention；
Fig. 4 is the module mechanical elevating control structure schematic diagram of the present invention；
Fig. 5 is the motor axial inner sectional view of the present invention；
Fig. 6 is the sub- stator modules structural representation of the present invention；
Fig. 7 is the modular embodiment control mode schematic diagram of the present invention.
Reference：
1-1 generator housing 1-2 Exciting Windings for Transverse Differential Protection 1-3 armature winding 1-4 rotor 1-6 stators
1 generator housing, 23 sub- stator modules of stator module, 4 rotor assembly, 5 rotor magnetic pole
11 guide rails
Guide block on ear 361 on 31 Exciting Windings for Transverse Differential Protection, 32 armature winding, 33 soft iron, 34 excitation con-trol line, 35 power input lines, 36 soft iron
371 lower guide block of ear, 38 universal coupling, 39 slide rail armature under 37 soft irons
61 motor, 62 power gear, 63 universal coupling, 64 ring gear, 65 ring gear seat 66 adjusts connecting rod.
Specific embodiment
The present invention provides a kind of electro-magnetic flux and switches electromotor, and the system mainly includes that wind energy conversion system, electro-magnetic flux are cut
Change motor, controller；Wind energy conversion system is connected to electro-magnetic flux switching electromotor, and on the one hand electro-magnetic flux switching electromotor connects
Controller is connected to, booster transformer is connected to by uncontrollable rectifier bridge and three-phase inverter on the other hand, three-phase inverter is defeated
Go out to feed back signal in controller；Controller switches electromotor by excitation con-trol electro-magnetic flux again.
Generator excitation winding is opened winding two ends and is directly powered by two multi-electrical level inverters respectively, embeds on the stator
Double winding, i.e. armature winding and Exciting Windings for Transverse Differential Protection, Exciting Windings for Transverse Differential Protection end are designed as out winding construction, the fully open extraction of its terminal；
Armature winding accesses common frequency power network and exports as electric energy, Exciting Windings for Transverse Differential Protection connection controller, is connected with electrical network by booster transformer
As AC excitation.Wind energy conversion system is connected with wind-driven generator, drives electromotor rotation.The armature winding and electrical network of wind-driven generator
Connection, exports as electric energy；The Exciting Windings for Transverse Differential Protection of wind-driven generator passes through controller and booster transformer is also connected with electrical network, is used as
AC excitation.Controller drive circuit provides signal.Two sets of independent symmetrical windings, i.e. armature winding have been embedded on the iron core of stator
And Exciting Windings for Transverse Differential Protection, and be double-deck short distance winding, i.e., four layers of winding are embedded in one groove, Exciting Windings for Transverse Differential Protection is in top, armature winding
In bottom.
The Exciting Windings for Transverse Differential Protection and armature winding of the further present invention can be arranged at same sub- stator by modularized design
In module, so as to facilitating electromotor assembling and safeguarding, and Exciting Windings for Transverse Differential Protection and armature can be realized by the setting of frame for movement
The regulation of distance between winding, so as to change the power of excitation field.
Exciting current is connected to Exciting Windings for Transverse Differential Protection 31 by excitation con-trol line 34 in electromotor, by the change of control electric current come
Change magnetic direction and size that Exciting Windings for Transverse Differential Protection 31 is produced, reach the purpose strengthened or weaken stator field.
Controller by control of the control signal to motor, is realized to the soft iron with Exciting Windings for Transverse Differential Protection and armature simultaneously
The control of distance between winding, and then reach the purpose for adjusting excitation field intensity.
The present invention realizes the shadow to wind-driven generator magnetic field by the electric current to excitation field intensity, mechanical dual regulation
Ring, and then control.
Modular electromotor includes that stator module 2 and a rotor assembly 4, stator module 2 and rotor assembly 4 are set with one heart
Put, the stator module 2 is fixed, and rotor assembly 4 is configured in 2 center of stator module.Drive shaft extends connection rotor set
Central hub of the part 4 to blower fan, rotor assembly 4 of the drive shaft mechanically by a gear-box with electromotor pass through mechanical couplings
Connection.
The stator module 2 includes stator group part annular outer cover, and many sub- stator modules 3 are from stator module annular outer cover
Radially inner side to rotor assembly 4 is prominent, remains stationary during the operation that stator module 2 is maintained at electromotor, is electromotor knot
The on-rotatably moving part of structure.Many sub- stator modules 3 are embedded in stator module annular outer cover, sub- stator modules and stator module ring
Shape shell is made up of ferromagnetic material.
Rotor assembly 4 includes framework and rotor magnetic pole 5, is circumferentially distributed on framework with multiple rotor magnetic poles 5, drives
Axle is supported by within the bearing, so that the stable operation in columnar stator module 2 of rotor assembly 4 so that stator pack
Radial air gap is formed between sub- stator modules 3 and rotor magnetic pole 5 in part 2.
The rotor assembly 4 of stator module 2 and electromotor cooperates, and the mechanical energy received from rotor is converted into electric energy, so as to
The kinetic energy of wind is made to be converted to electric energy and be used.
The magnetic pole of rotor assembly 4 makes line in accordance with Faraday's law by the relative motion of the fixed coil on stator module 2
Circle produces electric current.The rotating speed of electromotor is 5 to 25 rpms.
Each rotor magnetic pole 5 includes one or more permanent magnets, and its permanent magnet material can produce powerful electromagnetic field, together
When can resist the impact of external magnetic field, with by strong anti-demagnetization performance.
Wind-driven generator body is coaxially disposed by the stator module 2 that is embedded in generator housing 1 and with stator module 2
Rotor assembly 4 is constituted, and stator module 2 is made up of with the sub- stator modules 3 being embedded in silicon steel magnetic conduction framework silicon steel magnetic conduction framework,
Sub- stator modules 3 are made up of Exciting Windings for Transverse Differential Protection 31 and armature winding 32, and the Exciting Windings for Transverse Differential Protection 31 being embedded in soft iron 33 is arranged at armature
Above winding 32, excitation field is caused to produce change by the control to size of current in Exciting Windings for Transverse Differential Protection 31.
Exciting Windings for Transverse Differential Protection 31 is embedded in soft iron 33, and soft iron 33 is arranged in winding cavity 30, and can be in winding cavity 30
Inside slidably, Exciting Windings for Transverse Differential Protection 31 is slided with excitation con-trol line 34 by slide rail armature 39 and is electrically connected, so as to slide in soft iron 33
During ensure Exciting Windings for Transverse Differential Protection 31 be persistently powered, it is ensured that adjustment of field excitation effect.
Excitation con-trol line 34, power input lines 35 connect electromotor by being embedded in generator housing 1, connect respectively
Control system and electric power output system.
Ear 37 connection member as Sliding Control ear 36, soft iron under is provided with soft iron on soft iron 33, ear 36 on soft iron,
Under soft iron, ear 37 is arranged at the axis direction of motor, and on soft iron, 36 end of ear is provided with ear 37 under 361 soft iron of guide block and is provided with
Lower guide block 371, upper guide block 361 are slidably connected with guide rail 11 with lower guide block 371, so as to ensure that soft iron 33 along the footpath of electromotor
To moving direction, one of upper guide block 361 or lower guide block 371 are connected with universal coupling 38, and universal coupling 38 is by adjusting connecting rod 66
It is connected to and is arranged on the universal coupling 63 of 64 side of ring gear, is driven by the rotation of ring gear 64 and adjust the motion of connecting rod 66 and then band
Dynamic soft iron 33 is moved along the direction of guide rail 11, so as to by adjusting soft iron 33 into the degree of armature winding 32 changing excitation
Impact of the magnetic field to armature winding 32, strengthens or weakens the magnetic field of rotor generation.
64 inner face of ring gear is provided with internal gear, and outside is provided with outer tooth ring, internal gear be arranged at motor generator housing side
On ring gear seat 65 on ring gear coordinate, the power gear 62 that outer tooth ring is driven with motor 61 coordinates, motor 61
Both forward and reverse directions are rotated, and are driven the ring gear 64 being arranged on ring gear seat 65 to do circumferential movement by power gear 62, and then are passed through ten thousand
Drive to hinge 63 and adjust connecting rod 66, then drive soft iron 33 to do along guide rail 11 by the universal coupling 38 being connected with regulation connecting rod 66
Move back and forth, change impact of the excitation field to armature winding 32.
Modular electrical magnetic flux used for wind power generation switches electromotor, needs magnetic field is individually produced outside rotor, therefore requires
Rotor magnetic pole has good anti-demagnetization performance, for above-mentioned requirements, the invention provides a kind of rotor permanent magnet material.
Rotor permanent magnet is containing one or more rare earth（Lanthanide series）Element, such as neodymium or samarium are ferromagnetic metals
Alloy composition permanent magnet material rare earth element magnet.Containing rare earth element and transition metal, such as ferrum, nickel, or cobalt.It is suitable for forever
The representational alloy of the permanent magnet material of long Magnet.Coating or coating can be applied to the anticorrosion of protection permanent magnet, breakage
And tipping.Rare earth alloy is, with big magnetocrystalline anisotropy, to be promoted in a specific direction by the magnetization of high-intensity magnetic field, but
It is, once being magnetized, to be resistant to be magnetized.Permanent magnetization can be to come for the permanent magnet material of demagnetization by intentionally applying magnetic field
Change.Each magnetic pole includes that multiple single permanent magnets are that bonding agent bonds to the outer surface of rotor rack or coupled use
Machinery folder, framework, or other conventional mechanical fastening techniques, to form each magnetic pole.Each magnetic pole can be by a single chip architecture
It is single, overall permanent magnet is constituted.In an alternative embodiment, the permanent magnet material in permanent magnet can be ceramics or ferrite
Material, or alnico alloy.However, rare earth alloy is the remanent magnetism preferably as of a relatively high（Br）, it is strong with magnetic field
Degree, of a relatively high coercivity（Hci）, its anti-demagnetization of measurement, and of a relatively high energy product（BHmax）, it is to be related to energy
Metric density.
The present invention is while specifically provide a kind of permanent magnet material, which specifically includes Sm26%Co53%Fe12.8%Cu5.3%
Zr2.9%.Prepared by high-energy ball milling method, which concretely comprises the following steps：Highly purified metal dust is chosen, and is uniformly mixed;Will mixing
Good raw material is put in high energy ball mill, 36～64h of ball milling under highly purified Ar gas shieldeds.Powder after ball milling is taken out and is put
Enter in vacuum heat treatment furnace, heat treatment is carried out under 1 × 10-3～1 × 10-6Pa vacuums.Crystallization temperature control 500 DEG C～
800 DEG C, heat treatment time is 5～30min.In order to prevent excessively growing up for crystal grain, the side of being rapidly heated in heat treatment process, is adopted
Method.After Crystallizing treatment, alloy powder is put in vacuum drying oven, is evacuated to 1 × 10-3～1 × 10-6Pa, it is then charged with 1 ×
The high pure nitrogen of 105～1 × 106Pa, is heated to 300 DEG C～500 DEG C or so, is incubated 1.5～45h, rapid cooling of coming out of the stove.By powder with
Bonding agent, coupling agent are sufficiently stirred for, mix, compressing.The magnetic powder prepared and magnet are put in vibrating specimen magnetometer
Measure its magnetic property：The magnetic property result of measurement magnetic powder is as follows：Br=1.06T, iHc=727kA/m, (BH) max=176kJ/
m3；The magnetic property result of measurement bonded permanent magnet is as follows：Br=0.85T, iHc=678kA/m, (BH) max=127kJ/m3；25
In the range of～180 DEG C, temperature coefficient is respectively：α Br=-0.046%/DEG C, β Hci=-0.319/ DEG C.
Modular electrical magnetic flux used for wind power generation switches electromotor, and sub- stator modules need individually to produce magnetic field, and should
Magnetic field is needed according to wind-force size real-time change, therefore requires that magnetic material has good demagnetization performance in sub- stator, for upper
Requirement is stated, the invention provides a kind of soft magnet material.
The present invention is while specifically provide a kind of Electralloy of soft magnet material as adjustment of field excitation, including weight percent
Than for：11～14%Al, 0～5%Co, 0.82%V, 0.2～3.0%Mo, 1～2%Ni, 0.01～0.1%C and/or 0.001～
0.02%B, remaining is Fe.Its preparation method is using vacuum or protective gas melting, by forging and/or being rolled into required rule
The alloy bar material of lattice, finished product control 50 °～400 DEG C/h of rate of cooling below 700 DEG C by heat treatment.Using this
With the increase of Al content, its electricalresistivityρ is worth similar increase, saturation induction density Bs, remanent magnetism Br and density d phase to invention alloy
The rule that should reduce, selects suitable Al content, using Al and Co, V, Mo constituent content change and alloy in order-disorder
Affecting laws of the transformation to magnetocrystalline anisotropy Kl, magnetostriction and saturation magnetization Ms etc., while taking reduction impurity to contain
The measures such as amount and internal stress, evening chemical composition, reduce coercivity H, improve magnetic permeability μ, and this kind of material is suitable for higher tuning up
The electric magnet of speed and big suction, alloy are presented high saturation (Ms), 2～2.35 teslas.Alloy presentation high resistivity, 40
～100 microhms/centimetre.Alloy can be cast bar, can be crushed so that structure processed will be cast in 900～1100 DEG C of forgings, forging can heat
Roll to form piece, hot rolling piece can be quenched to be formed with unordered by the high temperature of 905 DEG C of series in the cryosel aqueous solution less than 0 DEG C
Piece is cold rolled to required size by crystalline texture piece, and cold rolling is annealed, and alloy can be age hardening at 400 to 700 DEG C in atmosphere
At most 50 hours.And piece can have the oxide content and/or 1 to 30 micron of average grain of 0.5～2 weight % after heat treatment
Degree.
Certainly, described above is not limitation of the present invention, and the present invention is also not limited to the example above, this technology neck
Change, remodeling, addition or replacement that the technical staff in domain is made in the essential scope of the present invention, should also belong to the present invention's
Protection domain.
Claims (6)
1. a kind of Modular electrical magnetic flux used for wind power generation switches electromotor, inside which by generator housing, stator module, turn
Sub-component is constituted, it is characterised in that：Armature winding and Exciting Windings for Transverse Differential Protection double winding are embedded on stator module, Exciting Windings for Transverse Differential Protection is located at electricity
On the outside of pivot winding, Exciting Windings for Transverse Differential Protection connection controller, on the one hand electro-magnetic flux switching wind power generator is connected to controller, another
Aspect is connected to booster transformer by uncontrollable rectifier bridge and three-phase inverter and accesses common frequency power network as electric energy output, three-phase
Inverter output feedback signal is in controller；Controller controls electro-magnetic flux by exciting current again and switches electromotor, fixed
Sub-component is embedded in generator body body, and rotor assembly is coaxially disposed with stator module, stator module by silicon steel magnetic conduction framework with
The sub- stator modules composition being embedded in silicon steel magnetic conduction framework, sub- stator modules are made up of Exciting Windings for Transverse Differential Protection and armature winding, are inlayed
It is arranged above armature winding in the Exciting Windings for Transverse Differential Protection in soft iron, the Exciting Windings for Transverse Differential Protection is position-movable, by electricity in Exciting Windings for Transverse Differential Protection
The control of stream size causes excitation field to produce change, the motion control mechanism simultaneously containing control Exciting Windings for Transverse Differential Protection movement.
2. a kind of Modular electrical magnetic flux used for wind power generation as claimed in claim 1 switches electromotor, it is characterised in that：Should
Stator module includes stator group part annular outer cover, and many sub- stator modules are from stator module annular outer cover to rotor assembly
Radially inner side is projected, and remains stationary during the operation that stator module is maintained at electromotor, is the on-rotatably moving part of electric generator structure,
Many sub- stator modules are embedded in stator module annular outer cover, and sub- stator modules and stator module annular outer cover are by ferromagnetic material
Constitute；Rotor assembly includes framework and rotor magnetic pole, is circumferentially distributed on framework with multiple rotor magnetic poles, and drive shaft is propped up
Hold within the bearing, so that the stable operation in columnar stator module of rotor assembly so that the son in stator module
Radial air gap is formed between stator modules and rotor magnetic pole；Exciting Windings for Transverse Differential Protection is embedded in soft iron, and it is empty that soft iron is arranged on winding
Intracavity, and can be in the winding cavity slidably, Exciting Windings for Transverse Differential Protection is electrically connected with the slip of excitation con-trol line by slide rail armature, from
And ensure that Exciting Windings for Transverse Differential Protection is persistently powered during soft iron slides；Excitation con-trol line, power input lines pass through to be embedded in send out
Electromotor is connected in electric machine casing, respectively connection control system and electric power output system.
3. a kind of Modular electrical magnetic flux used for wind power generation as claimed in claim 2 switches electromotor, it is characterised in that：It is soft
Connection member of the ear as Sliding Control under ear on soft iron, soft iron is provided with ferrum, ear is arranged at motor under ear, soft iron on soft iron
Axis direction, on soft iron, ear end is provided with guide block, and under soft iron, ear is provided with lower guide block, upper guide block and lower guide block with lead
Rail is slidably connected, and so as to ensure that soft iron moving radially along electromotor, one of upper guide block or lower guide block are connected with universal coupling,
Universal coupling is connected to by regulation connecting rod and is arranged on the universal coupling of ring gear side, drives the company of regulation by the rotation of ring gear
Bar motion and then soft iron is driven to move along the direction of guide rail, so as to by adjusting soft iron into the degree of armature winding changing
Impact of the excitation field to armature winding, strengthens or weakens the magnetic field of rotor generation；Ring gear inner face is provided with internal gear, outside
It is provided with outer tooth ring, internal gear is coordinated with the ring gear on the ring gear seat being arranged in motor generator housing side, outer tooth ring and step
The power gear that stepper motor drives coordinates, and the both forward and reverse directions of motor are rotated, and are driven by power gear and are arranged on ring gear seat
On ring gear do circumferential movement, and then driven by universal coupling and adjust connecting rod, then by with adjust the universal hinge that connecting rod is connected
Chain drives soft iron to move reciprocatingly along guide rail, changes impact of the excitation field to armature winding.
4. a kind of Modular electrical magnetic flux used for wind power generation as claimed in claim 3 switches electromotor, it is characterised in that：Its
Soft iron material is Electralloy, including percentage by weight is：11～14%Al, 0～5%Co, 0.82%V, 0.2～3.0%Mo, 1～
2%Ni, 0.01～0.1%C and/or 0.001～0.02%B, remaining is Fe.
5. a kind of Modular electrical magnetic flux used for wind power generation as claimed in claim 3 switches electromotor, it is characterised in that：Its
Rotor magnetic pole is permanent magnet material, specifically includes Sm26%, Co53%, Fe12.8%, Cu5.3%, Zr2.9%.
6. a kind of Modular electrical magnetic flux used for wind power generation as claimed in claim 3 switches electromotor, it is characterised in that：Control
Device processed there is excitation con-trol line to be connected with step motor control line two-way control line with generator, can be by three contraries
The analysis for becoming the feedback signal of device adjust while Exciting Windings for Transverse Differential Protection current intensity and direction motor to change excitation to adjust
Winding position, and then change relative intensity of the excitation field with respect to armature winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271525.9A CN104113251B (en) | 2014-06-17 | 2014-06-17 | Wind power generation-used modular electro-magnetic flux switching power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271525.9A CN104113251B (en) | 2014-06-17 | 2014-06-17 | Wind power generation-used modular electro-magnetic flux switching power generator |
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| CN104113251A CN104113251A (en) | 2014-10-22 |
| CN104113251B true CN104113251B (en) | 2017-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2874907Y (en) * | 2006-01-23 | 2007-02-28 | 湖南大学 | Automatic regulating voltage multiphase permanent magnet wind power generator |
| CN101488682A (en) * | 2009-02-27 | 2009-07-22 | 环一军 | Constant voltage outputting mixed excitation type magnetic flux switching wind power generator |
| CN101834474A (en) * | 2010-03-17 | 2010-09-15 | 常州工学院 | Multitooth magnetic bridge type hybrid excitation magnetic flux switching motor |
| CN102684350A (en) * | 2011-03-12 | 2012-09-19 | 李贵祥 | Power generator based on double-acting iron core winding |
| JP5869322B2 (en) * | 2011-11-30 | 2016-02-24 | ダイハツ工業株式会社 | Generator |
| CN102710200B (en) * | 2012-05-17 | 2015-05-13 | 中国石油大学(华东) | Directly-drive wind power generation system composed of high temperature superconductive excitation magnetic flux switchover motor |
| CN103248148A (en) * | 2013-05-15 | 2013-08-14 | 东南大学 | Mixed excitation stator surface-mounted double-salient motor |
| CN203911826U (en) * | 2014-06-17 | 2014-10-29 | 曲阜师范大学 | Modularized electrically-excited magnetic flux switching power generator used for wind power generation |
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