CN203119724U - Four-phase doubly salient electro-magnetic generator of two-phase rectification and superposition double exciting winding - Google Patents
Four-phase doubly salient electro-magnetic generator of two-phase rectification and superposition double exciting winding Download PDFInfo
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- CN203119724U CN203119724U CN 201320007211 CN201320007211U CN203119724U CN 203119724 U CN203119724 U CN 203119724U CN 201320007211 CN201320007211 CN 201320007211 CN 201320007211 U CN201320007211 U CN 201320007211U CN 203119724 U CN203119724 U CN 203119724U
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Abstract
The utility model relates to a four-phase doubly salient electro-magnetic generator of a two-phase rectification and superposition double exciting winding. The four-phase doubly salient electro-magnetic generator is characterized in that difference among phase windings of the four-phase doubly salient electro-magnetic generator is 90 degrees, wherein the difference of voltage phase between phase windings a, c and phase winding b, d is 180 degrees; the phase windings a, c are reversely connected in series to combine into a phase winding A, the phase winding b, d are reversely connected in series to combine into a phase winding B, and the phase winding A and the phase winding B are connected to single-phase full-wave rectifier bridges D20, D21 and filtering capacitors C1, C2 respectively; the rectifier bridges D20 the D21 are connected in series; a negative electrode of the C1 is connected with a positive electrode of the C2; one end of a second set of the exciting winding Lf2 is connected with a positive end of the C1, the other end acts as a positive electrode of the generator, a wire is led out from a negative end of the C2 so as to act as a negative electrode of the generator, and the positive electrode and the negative electrode of the generator are connected with a positive electrode and a negative electrode of a load Z respectively; and two ends of the first set of the exciting winding are connected with two ends of a DC exciting voltage source Uf respectively.
Description
Technical field
The utility model belongs to the specific type of electric machine technical field, relates in particular to four phase electric excitation dual protrusion pole generators of the two excitation winding of a kind of two commutating phases stack.
Background technology
Stator and the rotor of electric excitation dual protrusion pole generator are salient-pole structure, belong to become magnetic resistance class motor, and the electric excitation dual protrusion pole generator replaces permanent magnet with excitation winding, makes the excitation field of generator to regulate.No winding and permanent magnet on the rotor, structure is very simple; When generator loading changes, can export to keep constant voltage by the exciting current size of regulating in the excitation winding, control is convenient.Four phase electric excitation dual protrusion pole generators are compared with corresponding unidimensional three-phase 6/4 and 12/8 utmost point double-salient-pole generator with stator poles, can improve power density, reduce the winding copper loss.The output of four phase electric excitation biconvex electrode generator armature windings is through output dc voltage after the four phase full-wave bridge rectification circuit rectifications.Conventional synchronization brushless DC generator output voltage is three-phase sine-wave, and every 60 ° of commutations once, commutation interval is even successively for bridge up and down, the triphasic potential symmetry, and the two-phase voltage difference that participates in commutation during the upper and lower bridge commutation of motor equates.Therefore upper and lower bridge commutation has symmetry, and commutation pressure drop and commutation overlap angle equate.Different with conventional synchronization generator phase potential waveform, generator phase potential waveform is made up of negative pressuren zone, zone of positive pressure and zero passage district in one-period.Fig. 1 is electric excitation dual protrusion pole generator one phase potential waveform.Thereby bridge commutation in the very fast appearance after the bridge commutation under the electric excitation dual protrusion pole generator can appear.As shown in Figure 2.Because the particularity of electric excitation dual protrusion pole generator potential waveform, be that the synchronous generator of sinusoidal voltage is different with the phase electromotive force, harmonic voltage content own is higher in the phase voltage waveform on the one hand, adopts the rectification pattern of traditional sinusoidal line voltage, can lose the many harmonic waves in the phase voltage, reduce to exert oneself; On the other hand, nonsinusoidal waveform is when connecing loaded work piece, because the existence of armature inductance, phase current can not suddenly change, and has complicated commutation overlap process, and this also is one of key factor that influences the generator external characteristic.In order to reduce above-mentioned unfavorable factor, increase exerting oneself of four phase electric excitation dual protrusion pole generators, four phase electric excitation dual protrusion pole generators of the two excitation winding of two commutating phases stack have been proposed, as original intention of the present invention.
Summary of the invention
The purpose of this utility model is: overcome the deficiencies in the prior art, proposed a kind of four phase electric excitation dual protrusion pole generators with the two excitation winding of two commutating phases stack.Four phase electric excitation dual protrusion pole generators of the two excitation winding of this two commutating phases stack, comprise four phase electric excitation dual protrusion pole generator and rectifier bridges, wherein the basic structure of four phase electric excitation dual protrusion pole generators is: stator and rotor are salient pole teeth groove structure, stator and rotor core form by silicon steel plate stacking, concentrate the armature winding except being equipped with on the stator, the first cover excitation winding and the second cover excitation winding also are housed, armature winding series connection on the relative stator tooth in space constitutes a phase, does not have winding on the rotor; It is characterized in that: mutual deviation 90 degree between the phase winding of four phase electric excitation dual protrusion pole generators, wherein, a, c two phase windings and b, d two-phase winding voltage phase place mutual deviation 180 degree, with a, c two phase winding differential concatenations synthesize the A phase winding, with b, d two phase winding differential concatenations synthesize the B phase winding, the A phase winding is distinguished order full-wave rectification bridge D20 mutually with the B phase winding, D21 and filter capacitor C1, C2, again D20 and D21 two cover rectifier bridges are connected, the negative pole of C1 connects the positive pole of C2, the end of the second cover excitation winding Lf2 and the anode of C1 are joined, the other end is drawn the positive pole as generator, draw the negative pole that lead is made generator from the negative terminal of C2, the positive pole of generator and negative pole connect positive pole and the negative pole of load Z respectively, and the two ends of the first cover excitation winding Lf1 are connected with the two ends of DC excitation voltage source Uf respectively.
[0004]Generator of the present utility model, with two synthetic carry out the single-phase full wave rectifying and wave-filtering respectively mutually after, the forward overlapped in series, externally output, the filtering by the second cover excitation winding reduces to add corollary equipment.As shown in Figure 5.
Generator of the present utility model owing to superpose after adopting the independent rectification of two-phase, reduces commutation overlap, because two-phase mutual deviation 90 is spent, and can reduce the ripple of 2 overtones bands after the stack, utilize the inductance of the second cover excitation winding, reduce voltage ripple, improve the quality of generator output electric property energy.
Generator of the present utility model compared with prior art, be that basic electromagnetic characteristic and rectification characteristic from the electric excitation dual protrusion pole generator combines, utilize between winding phase relation to synthesize, simplify the winding number of phases, utilize the second cover excitation winding to improve the output voltage quality, utilize two phase winding rectification overlapped in series, thereby raising generator output, improve the output performance of generator, reduce cost, expanded the scope of application.
Description of drawings
Fig. 1 is phase potential waveform figure;
Fig. 2 is electric excitation dual protrusion pole generator three-phase commutation figure;
Fig. 3 is traditional 4 commutating phase schematic diagrames;
Fig. 4 is 8/6 pole generator structure chart;
Fig. 5 is four phase electric excitation dual protrusion pole generator electrical schematics of the two excitation winding of the utility model two commutating phases stack;
Fig. 6 is four phase winding vectograms;
Fig. 7 is winding differential concatenation winding diagram.
Among the figure, e
ae
be
cBe three-phase a, b, the potential waveform of c, a, x is a line end that joins, b, y is the b line end that joins, c, z is the c line end that joins, d, w is line end that d is joined, and D1～D8 is rectifier diode, C is filter capacitor, and Z is load, and 1 is stator, 2 is rotor, 3 is the armature main winding, and 4 is excitation winding, and 5 is armature spindle, D20 is A phase single-phase full wave rectifier bridge, D21 is B phase single-phase full wave rectifier bridge, and Lf1 is the first cover excitation winding, and Lf2 is the second cover excitation winding, C1 is A phase filter capacitor, C2 is B phase filter capacitor, U0 is output dc voltage, and Uf is exciting voltage, ● be the end of the same name of main winding, ※ is the end of the same name of two cover excitation winding
Embodiment
Because different rotor number of poles form electric excitation biconvex electrode generator Structure are similar to 8/6 structure electric excitation dual protrusion pole generator, with 8/6 structure, four phase electric excitation dual protrusion pole generators concrete execution mode are described below.Generator of the present invention, 4 phases, the 8/6 structure electric excitation dual protrusion pole generator that relates to as shown in Figure 4.Tradition 4 phase generator rectifier structures as shown in Figure 3.
With reference to accompanying drawing, four phase electric excitation dual protrusion pole generators of the two excitation winding of this a kind of two commutating phases stack, comprise four phase electric excitation dual protrusion pole generator and rectifier bridges, wherein the basic structure of four phase electric excitation dual protrusion pole generators is: stator and rotor are salient pole teeth groove structure, stator and rotor core form by silicon steel plate stacking, concentrate the armature winding except being equipped with on the stator, the first cover excitation winding and the second cover excitation winding also are housed, armature winding series connection on the relative stator tooth in space constitutes a phase, does not have winding on the rotor; It is characterized in that: mutual deviation 90 degree between the phase winding of four phase electric excitation dual protrusion pole generators, wherein, a, c two phase windings and b, d two-phase winding voltage phase place mutual deviation 180 degree, with a, c two phase winding differential concatenations synthesize the A phase winding, with b, d two phase winding differential concatenations synthesize the B phase winding, the A phase winding is distinguished order full-wave rectification bridge D20 mutually with the B phase winding, D21 and filter capacitor C1, C2, again D20 and D21 two cover rectifier bridges are connected, the negative pole of C1 connects the positive pole of C2, the end of the second cover excitation winding Lf2 and the anode of C1 are joined, the other end is drawn the positive pole as generator, draw the negative pole that lead is made generator from the negative terminal of C2, the positive pole of generator and negative pole connect positive pole and the negative pole of load Z respectively, and the two ends of the first cover excitation winding Lf1 are connected with the two ends of DC excitation voltage source Uf respectively.When unloaded, regulate the size of exciting current if1, get final product the output voltage U 0 of regulator generator, thereby keep output voltage U 0 constant.
Generator of the present utility model is the winding of four phase structures, mutual deviation 90 degree between the phase winding.As shown in Figure 6.Wherein, a, c two phase windings and b, d two-phase winding voltage mutual deviation 180 degree with two phase windings difference differential concatenation, synthesize a phase, so can utilize inner phase winding voltage vector and the method that becomes, being harmonious four becomes two phase structure.As shown in Figure 7.
Generator of the present utility model, with two synthetic carry out the single-phase full wave rectifying and wave-filtering respectively mutually after, the forward overlapped in series, externally output, the filtering by the second cover excitation winding reduces to add corollary equipment.As shown in Figure 5.
Generator of the present utility model owing to superpose after adopting the independent rectification of two-phase, reduces commutation overlap, because two-phase mutual deviation 90 is spent, and can reduce the ripple of 2 overtones bands after the stack, utilize the inductance of the second cover excitation winding, reduce voltage ripple, improve the quality of generator output electric property energy.
Generator of the present utility model, the connection of the two excitation winding that relate to be, the first cover excitation winding Lf1 directly is connected with excitation source, and second overlaps excitation winding Lf2 is connected in the dc bus, as shown in Figure 4.When unloaded, directly regulate the size of current of the first cover excitation winding Lf1 and keep the stable of output voltage, during load, flow through electric current among the second cover excitation winding Lf2, form the self-excitation magnetic potential, finish the excitation effect jointly with the magnetic potential of the first cover excitation winding, and the magnetic potential amplitude that needs controller to finish is reduced.Because there is inductance in excitation winding, can reduce bus direct voltage ripple with the filter capacitor collocation, and need not optional equipment bus filter inductance.
Claims (1)
1. four phase electric excitation dual protrusion pole generators of the two excitation winding of commutating phase stack, comprise four phase electric excitation dual protrusion pole generator and rectifier bridges, wherein the basic structure of four phase electric excitation dual protrusion pole generators is: stator and rotor are salient pole teeth groove structure, stator and rotor core form by silicon steel plate stacking, concentrate the armature winding except being equipped with on the stator, the first cover excitation winding and the second cover excitation winding also are housed, armature winding series connection on the relative stator tooth in space constitutes a phase, does not have winding on the rotor; It is characterized in that: mutual deviation 90 degree between the phase winding of four phase electric excitation dual protrusion pole generators, wherein, a, c two phase windings and b, d two-phase winding voltage phase place mutual deviation 180 degree, with a, c two phase winding differential concatenations synthesize the A phase winding, with b, d two phase winding differential concatenations synthesize the B phase winding, the A phase winding is distinguished order full-wave rectification bridge D20 mutually with the B phase winding, D21 and filter capacitor C1, C2, again D20 and D21 two cover rectifier bridges are connected, the negative pole of C1 connects the positive pole of C2, the end of the second cover excitation winding Lf2 and the anode of C1 are joined, the other end is drawn the positive pole as generator, draw the negative pole that lead is made generator from the negative terminal of C2, the positive pole of generator and negative pole connect positive pole and the negative pole of load Z respectively, and the two ends of the first cover excitation winding Lf1 are connected with the two ends of DC excitation voltage source Uf respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320007211 CN203119724U (en) | 2013-01-08 | 2013-01-08 | Four-phase doubly salient electro-magnetic generator of two-phase rectification and superposition double exciting winding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320007211 CN203119724U (en) | 2013-01-08 | 2013-01-08 | Four-phase doubly salient electro-magnetic generator of two-phase rectification and superposition double exciting winding |
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| CN203119724U true CN203119724U (en) | 2013-08-07 |
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| CN 201320007211 Withdrawn - After Issue CN203119724U (en) | 2013-01-08 | 2013-01-08 | Four-phase doubly salient electro-magnetic generator of two-phase rectification and superposition double exciting winding |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915964A (en) * | 2013-01-08 | 2014-07-09 | 济南吉美乐电源技术有限公司 | Four-phase doubly salient electro-magnetic generator for double-phase rectification overlaying double-magnetic winding |
| CN103944320A (en) * | 2014-04-25 | 2014-07-23 | 西北工业大学 | Rectifying circuit for permanent magnet synchronous generator |
| CN104709101B (en) * | 2013-12-17 | 2017-01-18 | 中车大连电力牵引研发中心有限公司 | drive device and vehicle |
-
2013
- 2013-01-08 CN CN 201320007211 patent/CN203119724U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103915964A (en) * | 2013-01-08 | 2014-07-09 | 济南吉美乐电源技术有限公司 | Four-phase doubly salient electro-magnetic generator for double-phase rectification overlaying double-magnetic winding |
| CN103915964B (en) * | 2013-01-08 | 2016-03-16 | 济南吉美乐电源技术有限公司 | Four phase Fielding-winding doubly salient generator of the two excitation winding of two commutating phase superpositions |
| CN104709101B (en) * | 2013-12-17 | 2017-01-18 | 中车大连电力牵引研发中心有限公司 | drive device and vehicle |
| CN103944320A (en) * | 2014-04-25 | 2014-07-23 | 西北工业大学 | Rectifying circuit for permanent magnet synchronous generator |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130807 Effective date of abandoning: 20160316 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |