CN1036671A - The compensating circuit that is used for generator - Google Patents
The compensating circuit that is used for generator Download PDFInfo
- Publication number
- CN1036671A CN1036671A CN 89101471 CN89101471A CN1036671A CN 1036671 A CN1036671 A CN 1036671A CN 89101471 CN89101471 CN 89101471 CN 89101471 A CN89101471 A CN 89101471A CN 1036671 A CN1036671 A CN 1036671A
- Authority
- CN
- China
- Prior art keywords
- magnetic flux
- conductor
- electric current
- flux path
- generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
A kind of compensating circuit that is used for generator.This compensating circuit includes a conductor, and this conductor surrounded is on the generator magnetic flux path.The conductor that is called bucking coil provides the offset current with reaction component.This offset current is used for responding to the secondary magnetic flux with opposite composition of magnetic flux of responding to armature supply.Among another embodiment, use a generator-electrical generator/motor group.Bucking coil is enclosed in one of them generator on magnetic flux path, and another one generator or motor then are used for offset current is offered bucking coil.
Description
The present invention relates to be used to improve a kind of method and apparatus of generator efficiency.
In the past, one of generator reason of causing loss in efficiency is because there is distortion in the magnetic field that electric current produced that generator sends.
In a typical generator, a magnetic flux path is arranged by stator and rotor.When (primary) magnetic flux once changes in magnetic flux path, can produce a voltage, when its circuit is in closure state, then surrounds or be looped around in the conductor on a part of magnetic flux path and can induce electric current.This conductor is commonly referred to armature coil.When the electric current that induces changes, then in magnetic flux path, induce the secondary magnetic flux by this induced current in armature coil.The secondary magnetic flux is called as " generated flux " or " secondary flux ".When the induced current in armature coil had the resistive part, the secondary magnetic flux that is produced can make a magnetic flux distortion.
Do not have electric current to exist in armature coil, or armature coil is by short circuit, when maybe the load in being connected across armature coil was net resistance, then a magnetic flux on the pole-face between stator and rotor was symmetry at the center of this pole-face.Therefore, the magnetic between rotor magnetic pole and the magnetic pole of the stator attracts each other, and is symmetry at the center of this pole-face.So through the movable rotor pole-face make its towards stator pole faces and with stator to punctual stored energy equal the movable rotor pole-face make its away from stator pole faces not with stator to punctual energy of emitting.Therefore, except friction loss, outside winding loss and the iron loss, when magnetic flux or when the form of magnetic flux or shape were made into the pole-face symmetry, it was zero then making rotor rotate required energy for once in the magnetic flux path.
Yet because the secondary magnetic flux that is induced in the armature coil makes a magnetic flux produce distortion, this magnetic flux just no longer forms symmetric form to the pole-face between stator and rotor.Therefore, the movable rotor pole-face make its towards stator pole faces and with stator to punctual stored energy just no longer equal the movable rotor pole-face make its away from stator pole faces not with stator to punctual required energy.So, when the electric current that armature coil induces has the resistive part, just need extra energy just can make the rotor rotation.When in the armature coil induced current being arranged, be used for making the required power of rotor rotation (comparing) to be called distortion power input demand (distorted power input requirement) with the power input when not having induced current in the armature coil.
In order to reduce to make the required energy of rotor rotation,, must be eliminated minimum degree so pass the magnetic flux distortion of pole-face to reduce the producing required energy of power.
According to the present invention, can make its encirclement or be looped around on a part of magnetic flux path with a compensating conductor or coil, be used for eliminating the distortion of magnetic flux or make it drop to minimum degree.Offset current makes the induction by current in this bucking coil go out to be called the magnetic flux that compensates magnetic flux by bucking coil.The compensation magnetic flux have with armature coil in the opposite composition of secondary magnetic flux that electric current induced.
In order to eliminate the magnetic flux distortion that the secondary magnetic flux is produced, need make the compensation magnetic flux opposite equal the secondary magnetic flux with the secondary magnetic flux.If the opposite part of compensation magnetic flux is less than the secondary magnetic flux, then but the distortion of magnetic flux can be reduced can not be eliminated fully.
If the magnetic flux distortion can be eliminated fully by bucking coil, then the power input demand to rotor just was reduced to for zero (not comprising friction loss, winding loss and iron loss), and was full remuneration or 100% compensation.Yet, if the magnetic flux distortion can not be eliminated by bucking coil fully, the power input demand of rotor is reduced to less times greater than zero, and needs partly compensation.
When the effect owing to bucking coil makes that the effect of secondary magnetic flux reduces, no matter it is full remuneration or partly compensation, is used for making the required power input of rotor rotation (when comparing with the power input that does not have electric current in armature coil or the bucking coil) to be called compensation input power demand (compensatedinput power requirement).
The reduction of result's power input demand is the poor of distortion input power demand and compensation input power demand by way of compensation.The decrease of result's power input is called reduce (the reduction in imput power requirement) of input power demand by way of compensation.
For full remuneration, decrease is identical with distortion input power demand.For partly compensation, decrease is changing in the scope less than distortion input power demand greater than zero.
For offset current can be flowed in bucking coil, electrical power must be fed to bucking coil and on bucking coil, produce a voltage.This electrical power has reactance partly, and may have (or not having) real part part (real component, that is real merit part), or resistive partly.
From economical and save energy viewpoint for guaranteeing the value of above-mentioned compensation, be fed to the resistive power of bucking coil or real merit must less than by reducing that bucking coil caused the input power demand.In other words, present real merit to bucking coil, the distortion power input demand when the distortion power input demand when this amount makes and do not have offset current to the input power of rotor from the armature supply group is arranged is reduced to armature supply and offset current is arranged less than an amount.
A mode that is used for reaching this target is to supply with the bucking coil electric current, and this electric current has reactance partly (with the relation of bucking coil both end voltage).
After reading following detailed description and expression the present invention and embodiment of the invention accompanying drawing, just can understand other aspects of the present invention more.
The Figure of description explanation:
Fig. 1 is an embodiment summary view of compensating circuit of the present invention;
Fig. 2 represents about the summary of various relations of the present invention;
Fig. 3 is another embodiment summary plane graph of compensating circuit of the present invention;
Fig. 4 is a double-generator group of the present invention, or an embodiment summary view of double-generator-motor unit;
Fig. 5 and Fig. 6 are the phase diagrams that concerns between the various characteristics of expression one embodiment of the invention; With
Fig. 7 is the synoptic diagram of another embodiment of compensating circuit of the present invention and one generator-electric generator/electric motor group.
Below in conjunction with embodiment the present invention is done further carefully to state:
Fig. 1 shows the alternating current generator of the embodiment that comprises compensating circuit of the present invention.Generator 10 includes magnetic flux path 12, and the magnetic line of force can pass through this magnetic flux path 12.Typical mode is that magnetic flux path 12 includes a rotor 14 and a stator 16, and the both is made by the magnetic material that resembles irony.
Utilize traditional magnetic source to produce a magnetic flux Fp(arrow and represent vector) and make it pass through magnetic flux path 12.Show that in Fig. 1 a magnetic flux Fp is that this magnet exciting coil 18 is connected to a field power supply 20 because magnet exciting coil 18 inductions produce.This magnetic flux Fp can also utilize permanent magnet to produce.
When magnetic flux path 12 disconnected, one time magnetic flux Fp just changed in magnetic flux path 12, took this to produce voltage Va at armature coil.
If ohmic load R is arranged, or other loads (no matter being capacitive or perception) are connected on the armature coil 22, in armature coil 22, just have electric current I a and flow, and the load R that flows through, or other loads.
If the electric current I a armature 22 of flowing through is arranged,, can induce a secondary magnetic flux Fs at magnetic flux path 12 according to Lenz (Lenz) law.This secondary magnetic flux Fs has the part opposite with the direction of a magnetic flux.
If in armature coil 22, do not have electric current I a to flow, if armature coil 22 by short circuit, if or load is a net resistance, then a magnetic flux Fp 14 of pole-face (for example 16A among Fig. 1 and 14A) stator 16 and rotors just is symmetrical at pole-face.Therefore, make rotor pole (for example 14A) move towards stator pole faces (for example 16A) and when it is aligned with each other stored energy just equal movable rotor pole-face 14A and make it emit energy away from stator pole faces 16A and when making its mutual misalignment.So except friction loss, outside winding loss and the iron loss, as magnetic flux Fp or the total magnetic flux in magnetic flux path 12 is when pole-face is symmetry for once in the magnetic flux path 12, it is zero then making the required energy of rotor 14 rotations.
Yet when having electric current I a to flow in having resistive armature coil 22 partly, secondary magnetic flux Fs can make the magnetic flux by pole-face produce distortion.Therefore, magnetic flux no longer is the pole-face between stator 16 and the rotor 14 of being connected across of symmetry.So, make rotor pole faces (for example 14A) move towards stator pole faces (for example 16A) and when it is aligned with each other stored energy just no longer equal the energy that movable rotor pole-face 14A makes it be emitted away from sub-stator pole faces 16A and when it is not aligned with each other.Induction has resistive electric current I a partly in armature coil 22, makes rotor 14 rotations with regard to needing extra energy.Rotor 14 rotation power demand Pd(are not used when of the present invention) be called [distortion power input demand] (distorted power input requirement).
Shown a bucking coil 30 among Fig. 1.This bucking coil 30 is besieged or be looped around on a part of magnetic flux path 12.Bucking coil 30 is received a power supply 32, and produces a bucking voltage Vc on bucking coil 30.
When electric current I c flows in bucking coil 30, just respond to a compensation magnetic flux Fc, this compensation magnetic flux Fc have with secondary magnetic flux Fs(by the induction of the electric current I a in the armature coil 22 generation) opposite part.
For eliminating the magnetic flux distortion that causes by secondary magnetic flux Fs, that opposite with secondary magnetic flux Fs partly compensates magnetic flux Fc should equal secondary magnetic flux Fs, if the opposite part of compensation magnetic flux Fc is less than secondary magnetic flux Fs, then the magnetic flux distortion in the magnetic flux path 12 will be reduced, but can not eliminate fully.
The compensation magnetic flux Fc that bucking coil 30 is produced can reduce to make the required power of rotor 14 rotations to import demand.
Shown in Fig. 2 summary, in armature coil 22, there is the rated current Ip of armature supply Ia to flow, and when in bucking coil 30, not having offset current Ic to flow, just need the rotor 14 of generator 10 rotated with distortion input power demand Pd.In addition, compensation input power demand Pc is defined as: have the rated current Ip of armature supply Ia to flow in armature coil 22, and when having offset current Ic to flow in bucking coil 30, be used for making the rotor 14 of generator 10 to rotate required input power demand.The difference of distortion input power demand Pd and compensation input power demand Pc is called input power demand decrement Pred.The relation that therefore, Pred=Pd-Pc is arranged.
From the viewpoint of economy and conserve energy, for the real power Pcc that compensates, make the bucking coil of presenting 30 as far as possible effectively with bucking coil 30 saving amount Pred less than the input power demand Pred that has used bucking coil 30 to be obtained.So real power Pcc≤Pred=Pd-Pc.
Best mode is to make the real part of the electrical power P cc that supplies to bucking coil 30 as much as possible near zero.
Fig. 3 shows another representational embodiment of alternating current generator.Generator 40 shown in Figure 3 includes a magnetic flux path 42, and the magnetic line of force can pass through this magnetic flux path 42.Typical mode, magnetic flux path 42 includes a rotor 44 and a stator 46.
Utilize the mode of traditional magnetic source to produce a magnetic flux Fp and make it pass through magnetic flux path 42.A magnetic flux Fp who shows in Fig. 3 is produced by magnetizing coil 48 inductions, and this excitation wire Figure 48 receives a field power supply 50.
The same with the situation of Fig. 1 embodiment, when the magnetic flux in armature coil 52 coils changes, will on armature coil 52, produce a voltage Va.
If resistive load R is arranged, or any other load is connected to armature coil 52, in armature coil 52, just have electric current I a and flow, and the load R that flows through, or any other load.
If the electric current I a armature 52 of flowing through is arranged, according to Lenz (Lenz) law, induce a secondary magnetic flux Fs at magnetic flux path 42, this secondary magnetic flux Fs has and the opposite part of magnetic flux, as explanation to the embodiment generator of Fig. 1, when electric current I a has resistive partly the time, the symmetry of the secondary magnetic flux Fs magnetic flux form when passing pole-face that is produced by this electric current I a just produces distortion, and the result produces distortion input power demand Pd.
A bucking coil 60 shown in Fig. 3, this bucking coil 60 by around or be enclosed on a part of magnetic flux path 42.Bucking coil 60 comprises other coil 60a, 60b, 60c.This bucking coil 60 is connected to a power supply 62.
When electric current I c flows in bucking coil 60, just induce a compensation magnetic flux Fc, this compensation magnetic flux Fc have with secondary magnetic flux Fs(by the induction of the electric current I a in the armature coil 52 generation) opposite part.
The embodiment of the invention as shown in Figure 3, power supply 62 is supplied with bucking coil 60 with offset current Ic.This offset current has reactance partly.
The operating principle of Fig. 3 embodiment of the present invention is identical with above-mentioned Fig. 1 embodiment.
In any embodiment, have reactance by power supply 32 or 62 power of supplying with bucking coil 30 or 60 and partly also may have (or not having) real part part.If offset current Ic has the existence of real part part, then preferable mode is to make reactance partly greater than real part part.Best mode is to make offset current Ic in fact have only reactance partly not have real part part.
When the voltage Vs that produces is connected on armature coil 22 or 52 and has armature supply Ia to flow in armature coil 22 or 52, just there is power Pa to be sent to load R.Best mode is to make armature coil 22 or 52 real powers of being supplied with greater than the real part part that is provided to the power P cc in bucking coil 30 or 60.
Particularly suitable of the present invention does not have on the generator of Lorentz (Lorentz) power actually.In not having the generator of Lorentz force, the electric current I a of flow through armature coil 22 or 52 does not cut magnetic flux path 12 or 42.Best mode is to make the offset current Ic of flow through bucking coil 30 or 60 not cut magnetic flux path 12 or 42.
In the preferred embodiment of the present invention, electrical power P a produces in armature coil 22 or 52.The electrical power P a that produces in armature has reactance part and real part part.Best mode is to make the real part part of the armature power P a in armature coil 22 or 52 greater than the real part part that is fed into the power P cc in bucking coil 30 or 60.
Preferred embodiment of the present invention as in, generator 10 or 40 has a real power Pi, is used in armature coil 22 or 52 producing the ormal weight of power output Pa.Real power input demand Pi comprises makes rotor 14 or the required input power demand (Pd or Pc) of 44 rotations, adds the electrical power P cc that supplies with bucking coil 30 or 60.Best mode is to make the real power input demand Pi of generator 10 or 40 less than the situation that does not have offset current Ic to flow in bucking coil 30 or 60 when having offset current Ic to flow in bucking coil 30 or 60.
The present invention can be with having bucking coil 30 or 60 with generator 10 or 40() the relevant various actual characteristics of operation be described as follows:
Va is the induced voltage that is connected on armature coil 22 or 52;
Vc is connected on the voltage that is produced on bucking coil 30 or 60;
Ia is the electric current in armature coil 22 or 52;
Ic is the electric current in bucking coil 30 or 60;
AV is the electrical degree from voltage Va to voltage Vc;
AA is the electrical degree from voltage Va to electric current I a in armature coil 22 or 52; With
AC is the electrical degree from voltage Vc to electric current I c in bucking coil 30 or 60.
As the leading armature voltage Va of bucking voltage Vc, its leading amount is during for 0 ° to 90 ° of electrical degree, and the relative direction of corresponding electric current I c and the electrical degree of Ia can summarily be found out from Fig. 5.Wherein, bucking voltage Vc lead compensation electric current I c, then angle A c between the two is for negative.In addition, the leading armature voltage Va of the Ia of armature supply shown in the figure is so angle A A between the two is for just.
When this situation, the leading armature voltage Va of bucking voltage Vc, leading angle are 0 ° to 90 ° range, and the angle A c between bucking voltage Vc and the offset current Ic is-315 ° to 45 ° range.In addition, the angle A A between armature voltage Va and the armature supply Ia is 90 ° to 270 ° range.
If bucking coil 30 or 60 usefulness reactive current Ic come work, as the leading armature voltage Va of bucking voltage Vc, angle is when changing between 90 ° for 0 °, and offset current Ic is lag compensation voltage Vc, and its scope is from-225 ° to-135 °, or from-45 ° to 45 °.
In addition, armature supply Ia is with leading armature voltage Va, and its scope is from 135 ° to 225 °.
When its hysteresis of bucking voltage Vc hysteresis armature voltage Va when 0 ° to 90 ° of electrical degree changes, the relative direction of corresponding electric current I c and the electrical degree of Ia can summarily be found out from Fig. 6.Wherein, bucking voltage Vc lag compensation electric current I c, then angle A C between the two is for just.In addition, the leading armature voltage Va of the Ia of armature supply shown in the figure is so angle A A between the two is for just.
When this situation, bucking voltage Vc hysteresis armature voltage Va, the hysteresis angle is 0 ° to 90 ° scope ,-45 ° to the 315 ° scopes of the angle A C between bucking voltage Vc and the offset current Ic.In addition, the angle A A between armature voltage Va and the armature supply Ia is 90 ° to 270 ° scopes.
If bucking coil 30 or 60 usefulness reactive current Ic come work, when the angle of bucking voltage Vc hysteresis armature voltage Va when changing for 0 ° to 90 °, offset current Ic is lag compensation voltage Vc, its scope is from-45 ° to+45 °, or from 135 ° to 225 °.
In addition, armature supply Ia is with leading armature voltage Va, and its scope is from 135 ° to 225 °.
Therefore, when bucking coil 30 or 60 is in the course of work, in compensation model, will satisfy following relationship:
When: in the time of 0 °≤AV≤+ 90 °
-45 °≤AC≤+ 45 ° or-225 °≤AC≤-135 °
+135°≤AA≤+225°
With when: in the time of-90 °≤AV≤0 °
-45 °≤AC≤+ 45 ° or+135 °≤AC≤+ 225 °
+135°≤AA≤+225°
Another aspect of the present invention is to provide a kind of proper device to be used for reactance offset current Ic partly is supplied to bucking coil 30 or 60.
Preferable mode is that the present invention contains double-generator (twin generators), be used for offset current Ic be supplied to the device of generator 10 as shown in Figure 1 become as shown in Figure 4 second similar generator 10 '.
Fig. 1 generator 10 is illustrated as a generator in a generator 10 shown in Figure 4 and the 10 ' group.Generator 10 ' similar features is arranged with above-mentioned generator 10.Generator 10 ' represent with identical reference number with the similar part of above-mentioned generator 10.
Generator 10 ' in magnet exciting coil 18 ' at magnetic flux circuit 12 ' induce magnetic flux Fp ' a time, and at armature coil 22 ' armature voltage Va ' of generation, this armature coil 22 ' around or be enclosed in magnetic flux path 12 ' on.
Generator 10 ' armature coil 22 ' output be connected on the bucking coil 30 of generator 10.Therefore, generator 10 ' as power supply 32 shown in Figure 1.In addition, by the electric current I a ' of generator 10 ' produced as offset current Ic shown in Figure 1.In Fig. 4, be exactly the offset current Ic that supplies to bucking coil 30 from generator 10 ' next armature supply Ia '.
Because generator 10 be by generator 10 ' armature supply Ia ' be connected generator 10 ' on, so generator 10 ' rotor 14 ' to generator 10 ' stator 16 ' magnetic pole of the stator 16A ', the actual direction of 16B ', than the magnetic pole of the stator 16A of 14 pairs of stators 16 of rotor of generator 10,16 actual concrete direction more has compensation efficient.This be because generator 10 ' rotor 14 ' leading relatively or lag behind the rotor 14 of generator 10, relevant voltage Va is different with Va ' phase place.Therefore, the phase place of relevant armature supply Ia and Ia ' is also with different.Because Ia '=Ic, so the phase place of the compensation magnetic flux Fc that the secondary magnetic flux Fs that is induced by armature supply Ia will be responded to offset current Ic=Ia ' is different.
If the centre at the pole-face of the stator of an appointment gets-and line is as the reference line, and then the rotor 14 of generator 10 will form an angle A to the reference line between stator pole faces 16A and 16B in any stipulated time.Similarly, generator 10 ' rotor 14 ' in any stipulated time, will form an angle B to stator pole faces 16A ' and between's 16B ' reference line.Therefore, rotor 14 and rotor 14 ' relative angle when being angle C, then angle C is that angle A subtracts angle B.So in Fig. 4, the angle of rotor 14 ' leading rotor 14 becomes
C＝A-B
By control relevant rotor 14 and 14 ' relative angle C, can improve the effect of bucking coil 30.Therefore, the load R of the electrical characteristics of generator 10 and 10 ' regulation and mechanical property appointment can improve the efficient of bucking coil 30 or 60 with relative angle C between relevant rotor.So,, on certain angle C, make the required input power of rotor 14 rotations compare bigger reducing with other method for the offset current Ic of appointment.
In another preferred embodiment of the present invention, the present invention comprises a generator-motor group.In this embodiment, this motor and generator 10 shown in Figure 4 ' identical.Yet, this generator 10 ' be driven operation with synchronously electronic the same, blind power and electric current supply bucking coil 30.
In another preferred embodiment of the present invention, as shown in Figure 7, the generator 70 similar to generator 10 or 40 is three-phase synchronous generator.Especially, one of generator 70 is armature coil 72 mutually, and an other phase 74 is coil by way of compensation.Best mode is to make the also some of coil by way of compensation of third phase 76.74 and 76 formation are connected in series mutually.
In another embodiment of the present invention, as shown in Figure 7, electric generator/electric motor 80 is connected to generator 70, and by generator/engine 80 the phase 74 and 76 of offset current supply generator 70.Especially use the phase 84,86 of electric generator/electric motor 80 the phase 74,76 of offset current supply generator 70.The phase 82 of electric generator/electric motor 80 is in idle state.
In another embodiment of the present invention, the present invention is same as described above in fact, unique has not been both a plurality of armature coils, or a plurality of bucking coils are arranged, or a plurality of armature coils and a plurality of bucking coil are arranged.
If M represents the number of first conductor (or armature coil), and T represents the number of second conductor (or bucking coil), and M is more than or equal to 1, and T is also more than or equal to 1.Preferably M equals 1,2, and 3,4 or 5, and T also equals 1,2,3,4 or 5.
Though described above and some preferred embodiment of the present invention has been described, obviously, the present invention has more than and is limited to these certain embodiments.Present invention resides in function, machinery or electric property aspect all examples suitable with above-mentioned example.
Claims (21)
1, a kind of compensating circuit that is used for generator, this alternating current generator has a magnetic flux path and first conductor that surrounds a part of magnetic flux path, when the magnetic flux in magnetic flux path changes, on first conductor, produce one and have resistive electric current partly, and the electric current that is produced on first conductor induces magnetic flux at magnetic flux path, this compensating circuit includes: second conductor that surrounds a part of magnetic flux path, induce the compensation magnetic flux when electric current flows in second conductor, this compensation magnetic flux is opposite with the magnetic flux that the electric current in first conductor is responded to; Have reactance offset current partly with handle and supply to second conductor to be used for inducing the device of compensation magnetic flux.
2, according to the compensating circuit of claim 1, wherein magnetic flux path is by a rotor; The real part part of electrical power that supplies to second conductor is less than the reduction of the input power demand that is supplied to rotor;
Wherein
(a) in first conductor, flow and when not having electric current to flow in second conductor, need distortion input power demand rotor is rotated when specified current flow.
(b) in first conductor, flow and when having offset current to flow in second conductor, need compensation input power demand rotor is rotated when specified current flow; With
(c) decrease of input power demand is the difference between distortion input power demand and the compensation input power demand.
3, according to the compensating circuit of claim 2, wherein offset current has real part part and the reactance part bigger than real part part of offset current.
4, according to the compensating circuit of claim 3, wherein offset current has only the reactance part in fact and does not have real part part.
5, according to the compensating circuit of claim 1, wherein second conductor is supplied to the electrical power with reactance part and real part part, and on first conductor, produce and have reactance partly and the electrical power of real part part, wherein real part part of the power of first conductor greater than real part part at the power of second conductor.
6, according to the compensating circuit of claim 1, wherein when not having electric current to flow in second conductor, the magnetic flux that is gone out by the induction by current of first conductor in magnetic-path makes the real power input increase in demand of generator; Wherein the mobile real power input demand of generator that makes of electric current reduces in second conductor; Wherein in second conductor real part part of power less than reducing partly by the flow real power input demand of caused generator of electric current in second conductor.
7, according to claim 1,2 or 3 compensating circuit, wherein first conductor does not cut magnetic flux path; And second conductor does not cut magnetic flux path yet.
8, according to the compensating circuit of claim 4,5 or 6, wherein first conductor does not cut magnetic flux path; And second conductor does not cut magnetic flux path yet.
9, according to the compensating circuit of claim 1, wherein generator has real power input demand to produce the power output of specified amount, and is little when wherein the real power of generator input demand has offset current ratio of mobile time not have offset current to flow in second conductor.
10, the compensation arrangement in a kind of magnetic material apparatus, this magnetic material apparatus has the magnetic material of the magnetic flux path that is used to provide a magnetic flux and has the first electric loop that surrounds a part of this magnetic flux path, wherein the variation of a magnetic flux on magnetic flux path produces an electric current in the first electric loop, the first electric current in loop is not cut magnetic flux path, and the first electric current in loop produces a secondary magnetic flux at magnetic flux path, and this compensation arrangement includes:
Second loop that surrounds a part of magnetic flux path and
A power supply that is used to provide the secondary circuit electrical power of the reactive current that has slightly (or not containing fully) real power part and part (or whole).
11, a kind of alternating current generator, it includes:
A magnetic flux path;
First conductor that surrounds a part of magnetic flux path when the flux change in magnetic flux path, produces electric current in first conductor, wherein the electric current that is produced in first conductor induces magnetic flux at magnetic flux path; Second conductor that surrounds a part of magnetic flux path when having electric current to flow in second conductor, induces the compensation magnetic flux, and it is opposite to compensate the magnetic flux that electric current induced in magnetic flux and first conductor;
Offset current is supplied with second conductor to induce the feedway of compensation magnetic flux, and this offset current has reactance partly;
The device of wherein supplying with offset current is second alternating current generator, and it has one second magnetic flux path; With the 3rd conductor that surrounds a part of second magnetic flux path, when changing, the magnetic flux in second magnetic flux path in the 3rd conductor, produces electric current; With
Wherein the 3rd conductor links to each other with second conductor, makes electric current supply to the three conductors that produced in the 3rd conductor.
12, according to the compensating circuit of claim 9 or 11, wherein first conductor does not cut magnetic flux path; And second conductor does not cut magnetic flux path.
13, according to the compensating circuit of claim 1;
Wherein the electric current that is produced at first conductor is called Ia;
Wherein be called Va at the voltage that has on first conductor of electric current I a;
Wherein the offset current in second conductor is called Ic;
Wherein be called Vc at the voltage that has on second conductor of electric current I c; Wherein
AV is the electrical degree from voltage Va to voltage Vc;
AA is the electrical degree from voltage Va to electric current I a; With
AC is the electrical degree from voltage Vc to electric current I c;
Wherein can satisfy following relation:
When: in the time of 0 °≤AV≤+ 90 °
-45 °≤AC≤+ 45 ° or-225 °≤AC≤-135 °
+135°≤AA≤+225°
Or when: in the time of-90 °≤AV≤0 °
-45 °≤AC≤+ 45 ° or+135 °≤AC≤+ 225 °
+135°≤AA≤+225°
14, according to the compensating circuit of claim 2;
Wherein the electric current that is produced at first conductor is called Ia;
Wherein be called Va at the voltage that has on first conductor of electric current I a; Wherein the offset current in second conductor is called Ic;
Wherein be called Vc at the voltage that has on second conductor of electric current I c; Wherein
AV is the electrical degree from voltage Va to voltage Vc;
AA is the electrical degree from voltage Va to electric current I a; With
AC is the electrical degree from voltage Vc to electric current I c;
Wherein can satisfy following relation:
When: in the time of 0 °≤AV≤+ 90 °
-45 °≤AC≤+ 45 ° or-225 °≤AC≤-135 °
+135°≤AA≤+225°
Or when: in the time of-90 °≤AV≤0 °
-45 °≤AC≤+ 45 ° or+135 °≤AC≤+ 225 °
+135°≤AA≤+225°
15, according to the compensating circuit of claim 6,
Wherein the electric current that is produced at first conductor is called Ia;
Wherein be called Va at the voltage that has on first conductor of electric current I a;
Wherein the offset current in second conductor is called Ic;
Wherein be called Vc at the voltage that has on second conductor of electric current I c; With
Wherein
AV is the electrical degree from voltage Va to voltage Vc;
AA is the electrical degree from voltage Va to electric current I a; With
AC is the electrical degree from voltage Vc to electric current I c;
Wherein can satisfy following relation:
When: in the time of 0 °≤AV≤+ 90 °
-45 °≤AC≤+ 45 ° or-225 °≤AC≤-135 °
+135°≤AA≤+225°
Or work as :-90 °≤AV≤0 °
-45 °≤AC≤+ 45 ° or+135 °≤AC≤+ 225 °
+135°≤AA≤+225°
16, according to claim 13,14 or 15 compensating circuit, wherein first conductor does not cut magnetic flux path; Second conductor does not cut magnetic flux path yet.
17, according to the compensating circuit of claim 1, wherein generator is a three-phase synchronous generator, and its first is first conductor mutually, and second is second conductor mutually.
18, according to the compensating circuit of claim 17, wherein the third phase of this generator and second is in series and is connected.
19, according to the compensating circuit of claim 18, the device of the electric current that wherein affords redress is threephase alternator or engine.
20, according to claim 17,18 or 19 compensating circuit, wherein first conductor does not cut magnetic flux path; Second conductor does not cut magnetic flux path yet.
21, according to the compensating circuit of above-mentioned each claim, a plurality of first conductors of the magnetic flux path that surrounds generator are wherein arranged, wherein T is first number of conductors, and T is more than or equal to 1; A plurality of second conductors of the magnetic flux path that surrounds generator are wherein arranged, and wherein M is second number of conductors, and M is more than or equal to 1.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP89102144.6 | 1988-02-08 | ||
| CA561,915 | 1988-03-18 | ||
| CA561915 | 1988-03-18 | ||
| EP89102144A EP0332843A3 (en) | 1988-03-18 | 1989-02-08 | Compensation circuit for electrical generators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1036671A true CN1036671A (en) | 1989-10-25 |
Family
ID=25671785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89101471 Pending CN1036671A (en) | 1988-02-08 | 1989-03-17 | The compensating circuit that is used for generator |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPH03164051A (en) |
| CN (1) | CN1036671A (en) |
| AU (1) | AU3106989A (en) |
| BR (1) | BR8901236A (en) |
| DK (1) | DK130789A (en) |
| FI (1) | FI891277A (en) |
| HU (1) | HUT51803A (en) |
| IL (1) | IL89575A0 (en) |
| NO (1) | NO891185L (en) |
| NZ (1) | NZ228146A (en) |
| PL (1) | PL278317A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007037020A1 (en) * | 2005-09-29 | 2007-04-05 | Hideo Nakata | Single-phase ac composite generator |
-
1989
- 1989-02-27 NZ NZ22814689A patent/NZ228146A/en unknown
- 1989-03-07 AU AU31069/89A patent/AU3106989A/en not_active Abandoned
- 1989-03-07 JP JP5305089A patent/JPH03164051A/en active Pending
- 1989-03-10 IL IL89575A patent/IL89575A0/en unknown
- 1989-03-17 NO NO89891185A patent/NO891185L/en unknown
- 1989-03-17 DK DK130789A patent/DK130789A/en unknown
- 1989-03-17 PL PL27831789A patent/PL278317A1/en unknown
- 1989-03-17 BR BR8901236A patent/BR8901236A/en unknown
- 1989-03-17 HU HU127189A patent/HUT51803A/en unknown
- 1989-03-17 CN CN 89101471 patent/CN1036671A/en active Pending
- 1989-03-17 FI FI891277A patent/FI891277A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FI891277A (en) | 1989-09-19 |
| IL89575A0 (en) | 1989-09-10 |
| PL278317A1 (en) | 1989-11-13 |
| NO891185D0 (en) | 1989-03-17 |
| NO891185L (en) | 1989-09-19 |
| JPH03164051A (en) | 1991-07-16 |
| FI891277A0 (en) | 1989-03-17 |
| NZ228146A (en) | 1990-10-26 |
| BR8901236A (en) | 1989-11-07 |
| DK130789A (en) | 1989-09-19 |
| DK130789D0 (en) | 1989-03-17 |
| AU3106989A (en) | 1989-09-21 |
| HUT51803A (en) | 1990-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6541887B2 (en) | Permanent-magnet motor-generator with voltage stabilizer | |
| US8710785B2 (en) | Method of operating an electromechanical converter, a controller and a computer program product | |
| US20070090713A1 (en) | Hybrid-excited rotating machine, and vehicle with the hybrid-excited rotating machine | |
| CN1373548A (en) | Transportation system and motor-generator | |
| US5444321A (en) | Induction alternating current generator and a generation method | |
| CN1969440A (en) | Stator coil arrangement for an axial airgap electric device including low-loss materials | |
| US6794790B2 (en) | Rotary electric machine | |
| CN1808846A (en) | Dual-feeding mixed excitation axial magnetic field magento motor | |
| CN201860217U (en) | Parallel-structured brushless composite-excitation synchronous motor without additional air gap | |
| CN102005875B (en) | Brushless parallel-structure hybrid excitation synchronous generator without additional air gap | |
| CN110739891B (en) | Electric excitation synchronous reluctance brushless power generation system | |
| CN102005879A (en) | Electric excitation part double stator brushless mixed excitation synchronous generator | |
| CN112803628A (en) | Split-tooth type alternate-pole hybrid excitation brushless motor based on alternating-current excitation | |
| CN201956846U (en) | Composite excited brushless single phase synchronous generator with novel structure | |
| CN201860232U (en) | Hybrid excitation synchronous generator in parallel structure without electric excitation rotor | |
| CN1036671A (en) | The compensating circuit that is used for generator | |
| CN102480199A (en) | Hybrid excitation brushless single phase synchronous generator with novel structure | |
| US8310211B1 (en) | Auto-regulated motion power system | |
| CN100385778C (en) | Mictomagnetism dual voltage medium frequency brushless synchronous generator | |
| Zhao et al. | Design and comparison of electrically excited double rotor flux switching motor drive systems for automotive applications | |
| CN112910131A (en) | Rotor magnetic pole modulation type bypass type mixed excitation motor | |
| CN111082625A (en) | Alternating magnetic pole brushless hybrid excitation synchronous motor | |
| US10576830B2 (en) | Electric generator for diesel electric locomotive | |
| CN109768643A (en) | A kind of mixed magnetic circuit automobile AC rotor structure and generator | |
| CN113364238B (en) | Parallel magnetic circuit hybrid excitation brushless motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |