CN203313024U - Magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator - Google Patents
Magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator Download PDFInfo
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- CN203313024U CN203313024U CN2012204669798U CN201220466979U CN203313024U CN 203313024 U CN203313024 U CN 203313024U CN 2012204669798 U CN2012204669798 U CN 2012204669798U CN 201220466979 U CN201220466979 U CN 201220466979U CN 203313024 U CN203313024 U CN 203313024U
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Abstract
The utility model relates to a magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator. The generator is characterized in that: the three-phase windings A, B, and C of the electro-magnetic doubly salient generator are end open circuit windings; there is right-hand screw relationship between the positive direction of phase winding electromotive force and the positive direction of excitation magnetic flux; the positive direction of the phase winding electromotive force is oriented towards the positive terminals of the windings; the phase windings are independent from each other, connected with diodes and capacitors respectively and led out via leads; the dotted terminal of each phase winding is respectively connected with the anodes of the diodes; the cathodes of the diodes are connected with the anodes of the capacitors; the other terminal of each phase winding is connected with the cathodes of the capacitors; the three independent rectification filtering portions, based on the positive and negative relationship among the capacitors, are series connected according to such a rule that the cathode of a A-phase capacitor Ca is connected with the anode of a B-phase capacitor Cb and the cathode of the B-phase capacitor Cb is connected with the anode of a C-phase capacitor Cc, and then leads are connected with the anode of the capacitor Ca and the cathode of the capacitor Cc and are used as the anode or cathode of the DC generator.
Description
Technical field
The utility model belongs to technical field of generators, relates to special power generator, especially a kind of magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting that increases.
Background technology
Stator and the rotor of electric excitation biconvex electrode electric machine are salient-pole structure, belong to and become magnetic resistance class motor.Electric excitation biconvex electrode electric machine (patent No. ZL99114250.0) does not need rotor-position sensor and power inverter, system reliability is high, adopt multi-polar structure and double-stator structure, can further improve power density and the efficiency of motor, large application prospect is arranged.When electric excitation biconvex electrode electric machine is used as DC generator, the star-like connection of phase winding, and export direct current by full-bridge rectifier.Be subjected to the impact of the factors such as phase winding inductance and the commutation of full-bridge rectifier diode, use the output voltage of the double-salient-pole generator of full-bridge rectifier to increase and descend with load, common power consumption equipment always wishes that supply power voltage remains unchanged, the generator excitation regulating system keeps terminal voltage constant by increasing exciting current, thereby has increased the excitation loss of excitation system; Simultaneously, for electric excitation biconvex electrode electric machine, due to the impact of salient pole slot effect, while as motor, moving, torque pulsation is larger; While as generator, working, also have the large defect of output dc voltage pulsation, this has greatly limited double salient-pole electric machine in the wide rotating speed running status especially application of low cruise, large-power occasions; In addition, the electric excitation dual protrusion pole generator is used in wide rotating speed running status, particularly large in the rotating speed no-load voltage ratio and change violent occasion, when the rear class load is power-converting device, on the winding construction of tradition star-delta connection, transient peak voltage is higher, easily destroys insulation.Therefore, basic electromagnetic characteristic from electric excitation biconvex electrode electric machine, proposition has low-voltage regulation, low excitation loss, harmonic pulsation is little, winding insulation is simple and reliable increases the boost electric excitation biconvex electrode electric machine DC generator of interior filtering of magnetic, as original intention of the present utility model.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, has proposed a kind of have low-voltage regulation and low excitation loss, have simultaneously boost, the reliable magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting that increases of interior filter effect, insulation.DC generator of the present invention, by electric excitation dual protrusion pole generator, diode and electric capacity, formed, wherein the basic structure of electric excitation dual protrusion pole generator is: stator and rotor are the salient pole tooth slot structure, stator and rotor core form by silicon steel plate stacking, on stator, concentrate armature winding except being equipped with, also have excitation winding, the windings in series on the relative stator tooth in space forms a phase, on rotor without winding.This increases the magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting, include electric excitation dual protrusion pole generator, diode and the electric capacity of excitation winding, stator core, phase winding, rotor core, rotor connecting axle formation, the phase winding of electric excitation dual protrusion pole generator is the terminal open circuit structure, forms separately independently three phase modes.The positive direction of phase winding electromotive force and magnetic flux positive direction meet positive right-handed helix relation, and the positive direction of phase winding electromotive force is pointed to the anode of winding.Each phase winding is independent separately draws through wire, and the anode of every phase winding or negative terminal connect respectively the male or female of diode, and every phase connects a filter capacitor again, draws through wire.Three independently rectifying and wave-filtering part again according to by positive and negative relation, connecting successively, use as the negative or positive electrode of DC generator.The negative or positive electrode of DC generator connects respectively positive pole and the negative pole of load, to load supplying.Regulate the size of exciting current, can regulate the output voltage of sending out DC generator, thereby keep the constant of output voltage.
DC generator of the present utility model, the principle of its realization is: the phase winding magnetic linkage of electric excitation dual protrusion pole generator is relevant with rotor-position, when rotor pole slips into stator poles, unloaded magnetic linkage increases, and winding induces negative electromotive force, if this stage generator powers to the load, as can be known by Lenz's law, the magnetic linkage that load current produces stops unloaded magnetic linkage to increase, and is the degaussing armature reaction, causes electromotive force to reduce; When rotor pole skidded off stator poles, unloaded magnetic linkage reduced, and winding induces positive electromotive force.If this stage generator powers to the load, as can be known by Lenz's law, the magnetic linkage that load current produces stops reducing of unloaded magnetic linkage, for increasing the magnetic armature reaction, causes electromotive force to raise.In stage that rotor pole skids off stator poles, to load supplying, utilize to increase magnetic armature and reacts to offset or weaken the loss of voltage that the factors such as phase winding inductance and the commutation of full-bridge rectifier diode cause, thereby reduced voltage regulation and the excitation loss of generator.Common rectification type DC generator output voltage, can be according to all-wave or the halfwave rectifier relation of star delta connection, its DC output end voltage U 0 can be reduced to the product of every phase winding voltage and a certain coefficient, the output of the direct current of DC generator of the present invention be to three independently winding carry out the rectification stack, thereby output dc voltage is that 3 of every commutating phase voltage is accompanied, independent phase voltage is formed to obvious pressurized effect.In the voltage additive process, because generator three phase windings distribute at space mutual deviation 120 degree, the commutation rectification superposes simultaneously, and the filter effect that uses the inherent restriction relation of winding to form, reduce current harmonics, reduces mains ripple.When the work of little exciting current, the motor magnetic circuit is unsaturated, and increasing electromotive force rising amplitude that the magnetic armature reaction produces increases with the increase of load; When large exciting current work, the motor magnetic circuit is saturated, increase with load, increase the electromotive force rising amplitude reduction that the magnetic armature reaction produces, but simultaneously because magnetic circuit is saturated, the loss of voltage caused in phase winding inductance and diode commutation process is corresponding reducing all also, so under the different exciting electric current, system has low voltage regulation and excitation loss, has widened the occasion of using.Particularly in the load of coupling power converter type; because every phase winding under identical VD has obviously low voltage; thereby when the solution power electronic device is returned the high order harmonic component peak voltage of penetrating the group of unrolling; because fundamental voltage obviously reduces; make greatly to reduce because of the peak voltage that winding inductance produces, protected the insulation of generator.Be applicable to all version of electric excitation biconvex electrode electric machine of the different numbers of phases.
DC generator of the present utility model compared with prior art, basic electromagnetic characteristic and the rectification characteristic combine from electric excitation biconvex electrode electric machine, utilize voltage regulation and the excitation loss that magnetic armature reacts to reduce motor that increase of load, the electric current that increases the magnetic armature reaction is load current, does not increase excess loss; Utilize the commutation rectification stack of the spatial relationship of winding to eliminate current harmonics, reduce VD ripple and pulsation, thereby improve performance and the efficiency of DC generator; Use the winding open-circuit structure to connect, realize high output voltage with lower input phase voltage, expanded the scope of application.
The accompanying drawing explanation
Fig. 1 is the DC generator winding connection layout of three-phase wye connection full-wave rectification.
Fig. 2 is the utility model three-phase structure electric excitation biconvex electrode DC generator sectional view.
Fig. 3 is that the utility model increases the boost DC generator winding connection layout of interior filtered electrical excitation biconvex electrode of magnetic.
In figure, 1, excitation winding, 2, stator core, 3, phase winding, 4, rotor core, 5, the rotor connecting axle, if+ represents the anode of excitation winding, if-represents the negative terminal of excitation winding, A is the A phase winding, B is the B phase winding, C is the C phase winding, A+ represents the anode of A phase winding, A-represents the negative terminal of A phase winding, B+ represents the anode of B phase winding, B-represents the negative terminal of B phase winding, C+ represents the anode of C phase winding, C-represents the negative terminal of C phase winding, D1～D6 is the full-wave rectification diode, Da, Db, Dc increases the boost diode of interior filtered electrical excitation biconvex electrode DC generator of magnetic, Ca, Cb, Cc is respectively A, B, the commutation capacitor of C three-phase, ※ means the Same Name of Ends of three phase windings, Z is load, Uo is VD.
Embodiment
With reference to accompanying drawing, this increases the magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting, include excitation winding 1, stator core 2, phase winding 3, rotor core 4, the electric excitation dual protrusion pole generator that rotor connecting axle 5 forms, diode and electric capacity, electric excitation dual protrusion pole generator three-phase winding A, B, C is the terminal open circuit winding, the positive direction of phase winding electromotive force and magnetic flux positive direction meet positive right-handed helix relation, the positive direction of phase winding electromotive force is pointed to the anode of winding, each phase winding, independently connect respectively separately diode and electric capacity, through wire, draw, the Same Name of Ends of every phase winding connects respectively the anode of diode, the negative electrode of diode connects the positive pole of electric capacity, the negative pole of another termination capacitor of every phase winding, three independently rectifying and wave-filtering part according to the positive and negative relation by electric capacity, according to the negative pole of A phase capacitor C a, connect successively the positive pole of B phase capacitor C b again, the negative pole of B phase capacitor C b connects the positive pole of C phase capacitor C c, after series connection, connect wire from the positive pole of capacitor C a and the negative pole of capacitor C c, negative or positive electrode as DC generator is used.
Because different number of phases different structure forms increase magnetic, boost that mutually 6/4 structure electric excitation biconvex electrode electric machines are similar to 3 for interior filtered electrical excitation biconvex electrode DC generator structure, below with 3 mutually 6/4 structure electric excitation biconvex electrode electric machines concrete execution mode is described.DC generator of the present invention, the 3 phase 6/4 structure electric excitation biconvex electrode electric machines that relate to as shown in Figure 2.Exciting current if+ flows into, and from the negative terminal if-of excitation winding, flows out, at the inner magnetic flux produced from left to right of excitation winding.If electric current flows out from the anode of A, B, C tri-phase windings, negative terminal flows into, at the inner load magnetic flux produced from left to right of winding, consistent with magnetic flux.Negative terminal A-, the B-of A, B, C tri-phase windings, C-are independent separately, and through wire, draw the negative terminal that meets respectively capacitor C a, Cb, Cc, anode A+, the B+ of A, B, C tri-phase windings, C+ connect respectively the anode of diode Da, Db, Dc, the negative electrode of Da, Db, Dc is connected respectively to the anode of Ca, Cb, Cc, the anode of the negative terminal of Ca and Cb is joined, the anode of the negative terminal of Cb and Cc is joined again, from the negative terminal of the anode of Ca and Cc, connect respectively wire and draw, positive pole, the negative pole of doing DC generator are used.The positive pole of DC generator and negative pole connect respectively positive pole and the negative pole of load Z, to load supplying.As shown in Figure 3.Regulate the size of exciting current if, the output voltage U 0 that can regulate biconvex electrode electromotor for magnetic enhancing power generation excitation magnetism, thus keep output voltage U 0 constant.The magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting that increases of the present invention, relate to 3 the phase winding magnetic linkage of 6/4 structure electric excitation biconvex electrodes is relevant with rotor-position mutually, the definition rotor pole is 0 to spend electrical degree, i.e. position shown in Figure 2 while with A phase stator poles, aliging.In ［ 0 degree electrical degree-120 degree electrical degree ］ interval, when rotor pole skids off A phase stator poles, the mutually unloaded magnetic linkage of A reduces, and winding induces positive electromotive force, and the anode of A diode phase Da and the voltage between negative electrode are for just, the Da conducting, A phase winding electric current flows out from the A+ end, flows into from the A-end, and the armature field of generation is consistent with the excitation field direction, increase the magnetic linkage of A phase winding linkage, thereby improve A phase winding electromotive force.The recruitment of winding electromotive force can be similar to the loss of voltage that factors such as offsetting phase winding inductance and full-bridge rectifier diode steering causes, output voltage U o descends few, the output voltage U o that makes reasonable in design remains unchanged substantially, in 120 degree electrical degree-240 degree electrical degree intervals, under A phase stator poles, be rotor, the mutually unloaded magnetic linkage of A is substantially constant, the winding induced potential is close to 0, the anode of A diode phase Da and the voltage between negative electrode are for negative, and Da ends, and the A phase winding does not have electric current; In 240 degree electrical degree-360 degree electrical degree intervals, when rotor pole slipped into A phase stator poles, the mutually unloaded magnetic linkage of A increased, and winding induces negative electromotive force, and the anode of A diode phase Da and the voltage between negative electrode are negative, the Da cut-off, and the A phase winding does not have electric current.When rotor forwarded 360 degree electrical degree to, next cycle started.The operation principle of B phase, C phase is mutually identical with A, the time lag behind respectively 120 the degree electrical degrees and 240 the degree electrical degrees, as shown in Figure 2.The magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting that increases of the present invention, the three phase winding A, B, the C that relate to, when output, at first be connected to separately rectifier diode Da, Db, Dc and capacitor C a, Cb, Cc, each forms an independently rectification unit mutually, DC series stack by three unit, form the output voltage U o boosted, as shown in Figure 3.The magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting that increases of the present utility model, the every phase output voltage related to, after every mutually independent rectification unit, various high order harmonic component compositions obtain larger decay, because three phase winding A, B, C are 120 degree electrical degrees in space, distribute simultaneously, as shown in Figure 2, like this, direct voltage is removed certain phase angle successively, then superposes, and reaches the purpose of Modulating Power factor and harmonic carcellation.
Claims (1)
1. one kind increases the magnetic interior filtered electrical excitation biconvex electrode DC generator of boosting, include excitation winding (1), stator core (2), phase winding (3), rotor core (4), the electric excitation dual protrusion pole generator that rotor connecting axle (5) forms, diode and electric capacity, it is characterized in that: this electric excitation dual protrusion pole generator three-phase winding A, B, C is the terminal open circuit winding, the positive direction of phase winding electromotive force and magnetic flux positive direction meet positive right-handed helix relation, the positive direction of phase winding electromotive force is pointed to the anode of winding, each phase winding, independently connect respectively separately diode and electric capacity, through wire, draw, the Same Name of Ends of every phase winding connects respectively the anode of diode, the negative electrode of diode connects the positive pole of electric capacity, the negative pole of another termination capacitor of every phase winding, three independently rectifying and wave-filtering part according to the positive and negative relation by electric capacity, according to the negative pole of A phase capacitor C a, connect successively the positive pole of B phase capacitor C b again, the negative pole of B phase capacitor C b connects the positive pole of C phase capacitor C c, after series connection, connect wire from the positive pole of capacitor C a and the negative pole of capacitor C c, negative or positive electrode as DC generator is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204669798U CN203313024U (en) | 2012-09-14 | 2012-09-14 | Magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012204669798U CN203313024U (en) | 2012-09-14 | 2012-09-14 | Magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator |
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| CN203313024U true CN203313024U (en) | 2013-11-27 |
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| CN2012204669798U Withdrawn - After Issue CN203313024U (en) | 2012-09-14 | 2012-09-14 | Magnetic enhancing boosting inner filtering electro-magnetic doubly salient DC generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683786A (en) * | 2012-09-14 | 2014-03-26 | 济南吉美乐电源技术有限公司 | Magnetizing and boosting inner filter doubly salient electro-magnetic direct-current generator |
| WO2016201949A1 (en) * | 2015-06-15 | 2016-12-22 | 徐占魁 | Disc type magnetism increasing dc generator |
-
2012
- 2012-09-14 CN CN2012204669798U patent/CN203313024U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683786A (en) * | 2012-09-14 | 2014-03-26 | 济南吉美乐电源技术有限公司 | Magnetizing and boosting inner filter doubly salient electro-magnetic direct-current generator |
| CN103683786B (en) * | 2012-09-14 | 2015-10-21 | 济南吉美乐电源技术有限公司 | Increase filtered electrical excitation biconvex electrode DC generator in magnetic boosting |
| WO2016201949A1 (en) * | 2015-06-15 | 2016-12-22 | 徐占魁 | Disc type magnetism increasing dc generator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131127 Effective date of abandoning: 20151021 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |