CN1102519A - Method and device for current and frequency conversions - Google Patents
Method and device for current and frequency conversions Download PDFInfo
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- CN1102519A CN1102519A CN 94108079 CN94108079A CN1102519A CN 1102519 A CN1102519 A CN 1102519A CN 94108079 CN94108079 CN 94108079 CN 94108079 A CN94108079 A CN 94108079A CN 1102519 A CN1102519 A CN 1102519A
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Abstract
By use of commutator's brush, commutator, n collecting rings and their brushes, prime mover, primary and secondary windings, DC is converted into square wave DC, pulse DC, and Ac, m controllable switch elements respectively control the width of square wave from collecting ring's brush to primary windings. It is suitable to convert DC into frequency-variable rotating magnetic field, so adapting frequency-change speed regulation, speed-change motor, linear motor and chopping speed regulation.
Description
The present invention relates to a kind of method and apparatus of current and frequency conversion, particularly relate to and a kind ofly combining and some groups of elementary windings of inductive load with dynamic switch element (as commutator) and static controllable switch element (as thyristor etc.), with DC converting for exchanging or being the device of method and this method of realization of direct current with DC converting.
Using at present the current and frequency conversion device that constitutes by semiconductor device such as controllable silicons in a large number, this device has satisfied most of complicated current and frequency conversion requirement, but in the current and frequency conversion device of complexity, there is the problem of change of current difficulty or wave distortion in its basic circuit, for addressing these problems, adjunct circuit and forced commutation circuit are quite complicated and huge, owing to the turn-off time of thyristor, have limited the frequency of frequency converter.
A kind of method and apparatus that utilizes commutator to come the change of current is disclosed in Chinese patent CN1070520, this method and apparatus makes the mechanical current-converting method and apparatus advance major step to practicability, but during frequency conversion on a large scale, used commutator, manufacture very trouble, and need constantly to regulate the voltage of DC power supply.
The objective of the invention is to remedy to a certain extent deficiency of the prior art, the method that provides a kind of some groups of elementary windings by the commutator that rotates and collector ring and static controllable switch element combination and inductive load and corresponding secondary winding or corresponding intrinsic magnetic field to come current and frequency conversion, the while also provides a kind of device of the current and frequency conversion according to this method generation.
The purpose of foregoing invention solves by following method, this method is to pass through commutator brush, commutator, n (n＞1) collector ring, n collector ring brush and prime mover is organized elementary winding with the y of inductive load and corresponding secondary winding or corresponding main members such as intrinsic magnetic field carry out the change of current with it, and control the square wave DC pulse width that each collector ring inputs to the corresponding elementary winding of inductive load respectively with m controllable switch element between the elementary winding input of corresponding inductive load by being connected in each collector ring brush output respectively.(quantitative relation of said n, m, y is p 〉=n 〉=m 〉=y 〉=x, inductive load be exchange the time, p, m, n and y are even numbers, inductive load be direct current the time, p, m and n can be that even number also can be an odd number, x is meant the number of phases of AC inductive load, during the direct current inductive load, x 〉=1, p is the group number of commutator segment on the following commutator, down together), its concrete steps are:
The first step: by commutator brush one end of DC power supply is inputed to the commutator of rotation, direct current is stably converted to the square wave direct current by the p group commutator segment of the commutator that rotates.
Second step: the square wave direct current of p group commutator segment output input to connect respectively with commutator segment and with n collector ring of commutator coaxial rotation, the collector ring of rotation inputs to the n corresponding with a collector ring collector ring brush with the square wave direct current.
The 3rd goes on foot: the square wave direct current of the different moment of n collector ring brush difference or grouping output with the time, the y that inputs to inductive load respectively organizes elementary winding, changes the y input to inductive load therefrom and organizes in the elementary winding sense of current of each the elementary winding in every group of elementary winding and current potential and energising constantly and the time.
The 4th step: by each output of n collector ring brush respectively or grouping independently export the square wave direct current, organize y public output of elementary winding by the y of inductive load and distinguish output ripple direct current independently.
The 5th step: the magnetic coupling by inductive load makes the alternating current of inducting on the secondary winding corresponding with elementary winding, or the magnetic circuit by inductive load, makes between elementary winding electric magnetic field and corresponding intrinsic magnetic field or the induced electromagnetic field and produces interaction force.
When n collector ring brush respectively or after the square wave direct current of grouping output inputs to the input of m corresponding controllable switch element respectively, each collector ring brush the square wave direct current of output is just by corresponding controllable switch element output respectively, wavelength was determined by the conducting moment of controllable switch element.Each controllable switch element inputs to the square wave direct current of the corresponding elementary winding of inductive load, energising constantly just determined by the conducting of pairing controllable switch element constantly, promptly controls the utmost point by controllable switch element and accepts the moment of conducting control signal and determined.
Organize in the elementary winding elementary winding number and design and corresponding secondary winding or intrinsic magnetic field number and design in every group of elementary winding by the y that changes inductive load with it; Change the connection between each winding in every group of elementary winding; Correspondingly change each output of n collector ring brush and the y of inductive load and organize elementary winding, the connection of each public input or the y that correspondingly changes m each output of controllable switch element and inductive load organize the connection of elementary each public input of winding, can change the number of phases or the phase difference of inductive load secondary winding output AC electricity, or the relation or the resultant magnetic field of interaction force between the electromagnetic field that changes elementary winding and corresponding intrinsic magnetic field or the induced electromagnetic field; Or reduce the reverse voltage that controllable switch element is born; Or the frequency of the alternating current of change inductive load secondary winding output.
By increasing the number of commutator brush, winding number and design in every group of elementary winding of change inductive load, what change each output of each output of n collector ring brush or m controllable switch element and heterogeneous inductive load simultaneously respectively organizes connection between the public input of elementary winding, can make the secondary winding output many phase alternating current of heterogeneous inductive load.Change the mutual angle of commutator brush, can change the phase difference of the secondary winding output AC electricity of inductive load.
The extremely needed trigger impulse control signal of each control of controllable switch element can be provided (the digital phase shift trigger of using as thyristor) by the electronic impulser of static state, can be provided by dynamic mechanical type pulse generator; Specifically select for use any conducting to trigger controller, can need by the characteristic of current and frequency conversion Design of device and controllable switch element to select.
Each output of m controllable switch element can be exported respectively or divide into groups to export the copped wave direct voltage, and the mean value of each copped wave direct voltage is determined constantly by the conducting that produces galvanic commutator segment arc length of this square wave and the galvanic controllable switch element of this square wave of output.
Purpose of the present invention also can be achieved by following a kind of current and frequency conversion device, and this current and frequency conversion device mainly comprises: DC power supply; Prime mover; Commutator; Commutator brush; N collector ring; N collector ring brush; M controllable switch element; The conducting control device of controllable switch element; The y of inductive load organizes elementary winding and secondary winding corresponding with it or corresponding intrinsic magnetic field and load thereof.Wherein, utmost point of DC power supply links to each other with the input of corresponding commutator brush, the output of commutator brush links to each other with the input of commutator, p public output of the p of commutator group commutator segment respectively or grouping continuous with each input of corresponding n collector ring, prime mover drive commutator and n collector ring rotate simultaneously.Each output of n collector ring links to each other with each input of corresponding n collector ring brush respectively, each output of n collector ring brush respectively or grouping continuous with each input of corresponding m controllable switch element; Each control utmost point of m controllable switch element links to each other with each start pulse signal output that the conducting of corresponding controllable switch element triggers control device respectively; Each output of m controllable switch element respectively or grouping link to each other with each public input that the y of corresponding inductive load organizes elementary winding, it is extremely continuous that each public output that y organizes elementary winding is connected to another of back together and corresponding DC power supply, the y of inductive load organizes elementary winding and links to each other by magnetic coupling secondary winding or the intrinsic magnetic field corresponding with it, the alternating voltage or the active force of secondary winding or intrinsic magnetic field output supply load.
Current and frequency conversion device of the present invention, when DC power supply voltage changes, under the situation that the commutator rotating speed changes, can reach the purpose of current and frequency conversion without controllable switch element, at this moment, each output of n collector ring brush respectively or grouping directly and the y of corresponding inductive load each public input of organizing elementary winding link to each other.
Current and frequency conversion device of the present invention has the many advantages from commutation and externally commutated inverter and DC chopper and Electric Traction machinery.Wherein exclusive advantage be this device have n road or m road independently different separately constantly with the square wave DC pulse output of time, have the y road independently different separately constantly with the Rectified alternating current output of time.Utilize above-mentioned characteristic, this device can the designing high-power electromagnetic pulse output and linear electric motors etc.
By the form of embodiment the present invention is described in more detail below in conjunction with description of drawings:
Fig. 1 is the circuit block diagram according to current and frequency conversion device of the present invention.
Fig. 2 is the physical circuit figure according to a three-phase alternating current current and frequency conversion device in the current and frequency conversion device of the present invention.
Fig. 3 is the voltage oscillogram according to current and frequency conversion device embodiment 2 outputs of the present invention.
Fig. 4 is the sectional view according to a kind of composite type collector ring in the current and frequency conversion device of the present invention.
Fig. 5 is the top view of composite type collector ring shown in Figure 4.
In current and frequency conversion device shown in Figure 1, comprised DC power supply 1; Commutator brush 2; Commutator 3; First collector ring 4; Second collector ring 5; N collector ring 6; First collector ring brush 7; Second collector ring brush 8; N collector ring brush 9; First controllable switch element 10; Second controllable switch element 11; N controllable switch element 12; The conducting of controllable switch element triggers control device 13; Square wave DC load 14,15,16; First group of elementary winding 17 of inductive load; Second group of elementary winding 18 of inductive load; The y of inductive load organizes elementary winding 19; Pulsating direct current load 20,21,22; Secondary winding or intrinsic magnetic field 23,24; Load 25; Prime mover 26.Wherein, the output of first collector ring brush 7 or first controllable switch element 10 can directly be exported the square wave DC power supply when needed to supply with square wave DC load 14, the output of second collector ring brush 8 or second controllable switch element 11 when needed, can directly export the square wave DC power supply, to supply with square wave DC load 15, the output of n collector ring brush 9 or m controllable switch element 12 when needed, can directly export the square wave DC power supply, to supply with square wave DC load 16, the output of each collector ring brush or controllable switch element can with another or in addition the output of several collector ring brushs or controllable switch element merge output square wave DC power supply, to supply with the square wave DC load; The public output of first group of elementary winding 17 of inductive load when needed directly the output ripple direct current to supply with pulsating direct current load 20, the public output of second group of elementary winding 18 is direct output ripple direct current when needed, to supply with pulsating direct current load 21, the public output that y organizes elementary winding 19 is direct output ripple direct current when needed, to supply with pulsating direct current load 22.
Above-mentioned DC power supply can be one, also can be a plurality of; Commutator brush can be one, also can be a plurality of.Commutator brush can move around commutator by brush-displacement mechanism.Controllable switch element is meant that having the thyristor of controlling the utmost point relies on the semiconductor device of control utmost point signal controlling conducting with other; Inductive load is meant the designed transformer of needs by the pairing load of method and apparatus of current and frequency conversion, motor, the transmission of electricity that inductance such as solenoid are bigger, electrical appliance equipment, each elementary winding that the y of this inductive load organizes in the elementary winding is relatively independent, connected mode between the winding should meet the requirement of the pairing load of frequency-changing and current transforming device, the triggering control device of controllable switch element is meant that the current and frequency conversion device will be when operation maybe will move, can be by the feature of controllable switch element and the requirement of inductive load, possess in each controllable switch element the time of turn-on condition, respectively each controllable switch element is exported the Circuits System of conducting control signal, this device can be independently, also can be to be connected with the load end of inductive load, it can be electronic impulser, it also can be the mechanical type pulse generator, can also with current and frequency conversion Design of device of the present invention combine as a whole (as be shown in the examples), the mechanical type pulse generator is by DC power supply, commutator brush, commutator, collector ring, collector ring brush, prime mover and pulse transformer (can) etc. main member form.
Mechanical type pulse generator and the pulse generator that combines as a whole with current and frequency conversion device of the present invention, the radially relative position of employed commutator brush and commutator can change by brush-displacement mechanism.
Protective circuit is the part in the current and frequency conversion device, and the design of protective circuit should be fit to the characteristic of controllable switch element and the situation of inductive load.Overvoltage protective circuit commonly used has capacitance-resistance protective circuit of diode etc.
Fig. 2 also is a kind of current and frequency conversion device of the present invention, be a physical circuit figure of three-phase alternating current current and frequency conversion device, U1 is a main dc power supply in the drawings, U2 is auxilliary DC power supply, the 2nd, commutator brush G1 and G2, G1 are the commutator main brush, and G2 is the auxilliary brush of commutator, these two brushes can move (not drawing among the figure) around commutator by brush travel mechanism separately, the 27th, the expanded view of commutator segment on the commutator, in the expanded view, E1 and E ' 1 to E6 and E ' the 6th, main commutator segment, H1 to H6 is auxilliary commutator segment, it is six groups that these commutator segments are divided into, and every group has three commutator segments, two main commutator segments, a slice is assisted commutator segment, and the radian of auxilliary commutator segment is 3 degree; Mutually insulated between the commutator segment; B1 to B3 and F1 to F6 are main collector ring and main collector ring brush B ' 1 to B ' 6 and F ' 1 to F ' the 6th, auxilliary collector ring and auxilliary collector ring brush, and it is six groups that collector ring and brush thereof are divided into, every group has a main collector ring, a main collector ring brush; An auxilliary collector ring, an auxilliary collector ring brush.Inductive load is by the designed three-phase transformer BM of present embodiment, its elementary winding is six groups, the reactance of every group of elementary winding equates, the reactance of each winding in every group of elementary winding also equates, be divided into A1 group, A2 group, A3 group, A4 group, A5 group, A6 group, secondary winding is three single-phase secondary winding groups, it is A phase secondary winding group, B phase secondary winding group, C phase secondary winding group, wherein, elementary winding A1 group comprises the mutually elementary winding L T1A of A, the mutually elementary winding L T1B of B, the mutually elementary winding L T1C of C; Their input is the A1 end of each winding, and output is the B end of each winding, and elementary winding A2 group comprises the mutually elementary winding L T2A of A, the mutually elementary winding L T2B of B, the mutually elementary winding L T2C of C; Their input is the A2 end of each winding, and output is the B end of each winding, and elementary winding A3 group comprises the mutually elementary winding L T3A of A, the mutually elementary winding L T3B of B, the mutually elementary winding L T3C of C; Their input is the A3 end of each winding, and output is the B end of each winding, and elementary winding A4 group comprises the mutually elementary winding L T4A of A, the mutually elementary winding L T4B of B, the mutually elementary winding L T4C of C; Their input is the A4 end of each winding, and output is the B end of each winding, and elementary winding A5 group comprises the mutually elementary winding L T5A of A, the mutually elementary winding L T5B of B, the mutually elementary winding L T5C of C; Their input is the A5 end of each winding, and output is the B end of each winding, and elementary winding A6 group comprises the mutually elementary winding L T6A of A, the mutually elementary winding L T6B of B, the mutually elementary winding L T6C of C; Their input is the A6 end of each winding, and output is the B end of each winding.A phase secondary winding group comprises secondary winding LA1, LA2 and LA3, and B phase secondary winding group comprises secondary winding LB1, LB2 and LB3, and C phase secondary winding group comprises secondary winding LC1, LC2 and LC3.
T1 to T6 is six triode thyristors, and BT1 to BT1 is six pulse transformers, and D1 to D6 is six diodes.These elements also are divided into six groups, and every group has a triode thyristor; A pulse transformer; A diode, except that three-phase secondary winding, commutator brush and DC power supply, above-mentioned commutator segment, collector ring, collector ring brush, the elementary winding of inductive load, triode thyristor, arteries and veins fill transformer, diode, be divided into six groups equably, be divided into T1 group, T2 group, T3 group, T4 group, T5 group, T6 group, one group of commutator segment arranged in every group; Concentrate the electricity ring for one group; One group of collector ring brush; A thyristor; A pulse transformer; A diode; One group of elementary winding of inductive load, their a shared prime commutator brush and auxilliary commutator brushes, the connection in each group between each element is identical.
For convenience of explanation, at first, we describe main dc power supply and prime commutator brush, with being connected of auxilliary DC power supply and auxilliary commutator brush and commutator; The input of prime commutator brush G1 joins in the positive pole of main dc power supply U1 and 2, and the output of G1 and the commutator of rotation join; The input of auxilliary commutator brush G2 in the positive pole of auxiliary DC power supply U2 and 24 joins, and the output of brush G2 and the commutator of rotation join; Describe the connection between each element in the T1 group below in detail, wherein, the main commutator segment E1 of commutator and the output of E ' 1 are with corresponding and link to each other with the input of the main collector ring B1 of commutator coaxial rotation, the output of main collector ring B1 joins with the input of corresponding main collector ring brush F1, and the output of main collector ring brush F1 links to each other with the anode of corresponding thyristor T1.The negative electrode of thyristor T1 links to each other with each input A1 that the A1 of transformer BM organizes elementary winding, and each output B that A1 organizes elementary winding holds the back that links together to link to each other with the negative pole of main dc power supply U.The output of the auxilliary commutator segment H1 of commutator is with corresponding and link to each other with the input of the auxilliary collector ring B ' 1 of commutator coaxial rotation, the output of auxilliary collector ring B ' 1 joins with the input of corresponding auxilliary collector ring brush F ' 1, the output of auxilliary collector ring brush F ' 1 links to each other with the input of the elementary winding L 1 of corresponding pulse transformer BT1, and the output of L4 links to each other with the negative pole of auxilliary DC power supply U2; The positive pole of the secondary winding L ' 1 anode serial connection diode D1 of pulse transformer BT1, the negative pole of diode D1 extremely links to each other with the control of thyristor T1, and the other end of secondary winding L ' 1 links to each other with the negative electrode of thyristor T1.It is identical with the concatenate rule between each element in the T1 group that T2 organizes to the T6 group the connection between each element, here is not described in detail.The A end of A phase secondary winding LA1, LA2 and LA3 connects together, and the B end also connects together, by the two ends output supply load RA alternating voltage of LA2; The A end of B phase secondary winding LB1, LB2 and LB3 connects together, and the B end also connects together, by the two ends output supply load RB alternating voltage of LB2; The A end of C phase secondary winding LC1, LC2, LC3 connects together, and the B end also connects together, by the two ends output supply load RC alternating voltage of LC2.
Foregoing circuit figure only is the description that the main circuit schematic diagram to present embodiment carries out; the protective circuit element of additional circuit components and thyristor and main circuit does not occur in the main circuit schematic diagram; in the present embodiment, the arc length that G1 or G2 move around commutator in the commutator 2 should not surpass half of each group commutator segment arc length.
Fig. 3 is three kinds of voltage oscillograms of the current and frequency conversion device output of the foregoing description, Fig. 3 A is that the output of common brilliant lock T1 to T6 evenly rotates the week square wave DC voltage waveform figure that exports respectively of institute at commutator, and Fig. 3 B is the pulsating dc voltage oscillogram that the output of six groups of elementary windings of three-phase transformer BM under the above-mentioned situation is exported respectively.Fig. 3 C is that the three-phase secondary winding of three-phase transformer BM under the above-mentioned situation inputs to corresponding A phase load RA, B phase load RB, the alternating voltage waveform figure of C phase load RC.
Above-mentioned voltage oscillogram be between three phase windings of three-phase transformer and between every mutually elementary winding and and its corresponding secondary winding between leakage reactance very big; Arc length such as commutator main brush G1 and auxilliary brush G2 and on the same axis of commutator resulting voltage oscillogram.For the purpose of easy description, the method according to this invention designs the voltage oscillogram that other current and frequency conversion device exported and the harmonic voltage oscillogram and the trigger impulse voltage oscillogram of present embodiment, describes no longer one by one at this.
Fig. 4 and a kind of composite type collector ring shown in Figure 5, using the purpose of combination collector ring mainly is in order to dwindle the volume of this device rotating part, this collector ring comprises a commutator shaft 28, metal pedestal 29, dead ring 30, collector ring conductor 31 can clearly be seen that from figure, this collector ring is combined by many collector ring conductors, is mutually insulated between each bar collector ring.
Commutator structure described in employed commutator of current and frequency conversion device of the present invention and the Chinese patent CN1070520 is basic identical, and auxilliary commutator segment is set on commutator, and then the arc length of the more main commutator segment of arc length of auxilliary commutator segment is little many.
Only be to have described an enforcement group of the present invention above; the method according to this invention; can be out of shape current and frequency conversion device of the present invention, various distortion all belong within protection scope of the present invention, and protection scope of the present invention will be limited by appended claim.
Claims (9)
1, a kind of method of current and frequency conversion: this method is to pass through commutator brush, commutator, n (n＞1) collector ring, n collector ring brush and prime mover is organized elementary winding with the y of inductive load and corresponding secondary winding or corresponding main members such as intrinsic magnetic field carry out the change of current with it, and control the square wave DC pulse width that each collector ring inputs to the corresponding elementary winding of inductive load respectively with m controllable switch element between the elementary winding input of corresponding inductive load by being connected in each collector ring brush output respectively.(quantitative relation of said n, m, y is p 〉=n 〉=m 〉=y 〉=x, inductive load be exchange the time, p, m, n and y are even numbers, inductive load be direct current the time, p, m and n can be that even number also can be an odd number, x is meant the number of phases of AC inductive load, during the direct current inductive load, x 〉=1, p is the group number of commutator segment on the following commutator, down together), the feature of this method is:
The first step: by commutator brush one end of DC power supply is inputed to the commutator of rotation, direct current is stably converted to the square wave direct current by the p group commutator segment of the commutator that rotates.
Second step: the square wave direct current of p group commutator segment output input to connect respectively with commutator segment and with n collector ring of commutator coaxial rotation, the collector ring of rotation inputs to the n corresponding with a collector ring collector ring brush with the square wave direct current.
The 3rd goes on foot: the square wave direct current of the different moment of n collector ring brush difference or grouping output with the time, the y that inputs to inductive load respectively organizes elementary winding, changes the y input to inductive load therefrom and organizes in the elementary winding sense of current of each the elementary winding in every group of elementary winding and current potential and energising constantly and the time.
The 4th step: by each output of n collector ring brush respectively or grouping independently export the square wave direct current, organize y public output of elementary winding by the y of inductive load and distinguish output ripple direct current independently.
The 5th step: the magnetic coupling by inductive load makes the alternating current of inducting on the secondary winding corresponding with elementary winding, or the magnetic circuit by inductive load, makes between elementary winding electric magnetic field and corresponding intrinsic magnetic field or the induced electromagnetic field and produces interaction force.
When n collector ring brush respectively or after the square wave direct current of grouping output inputs to the input of m corresponding controllable switch element respectively, each collector ring brush the square wave direct current of output is just by corresponding controllable switch element output respectively, wavelength was determined by the conducting moment of controllable switch element.Each controllable switch element inputs to the negative square wave direct current of planting elementary winding of corresponding perception, energising constantly just determined by the conducting of pairing controllable switch element constantly, promptly controls the utmost point by controllable switch element and accepts the moment of conducting control signal and determined.
2, the method for current and frequency conversion according to claim 1 is characterized in that: organize in the elementary winding elementary winding number and design and corresponding secondary winding or intrinsic magnetic field number and the design with it in every group of elementary winding by the y that changes inductive load; Change the connection between each winding in every group of elementary winding; The y that the y that correspondingly changes each output of n collector ring circuit and inductive load organizes the connection of elementary each public input of winding or correspondingly changes m each output of controllable switch element and inductive load organizes the connection of elementary each public input of winding, can change the number of phases or the phase difference of inductive load secondary winding output AC electricity, or the relation or the resultant magnetic field of interaction force between the electromagnetic field that changes elementary winding and corresponding intrinsic magnetic field or the induced electromagnetic field; Or reduce the reverse voltage that controllable switch element is born; Or the frequency of the alternating current of change inductive load secondary winding output.
3, the method for current and frequency conversion according to claim 1 is characterized in that:
By increasing the number of commutator brush, winding number and design in every group of elementary winding of change inductive load, each output that changes each output of n collector ring brush or m controllable switch element simultaneously and a plurality of inductive loads mutually respectively organize connection between the public input of elementary winding, can make the secondary winding of the heterogeneous inductive load many phase alternating current of inducting.Change the mutual angle of commutator brush, can change the phase difference of the secondary winding output AC electricity of inductive load.
4, the method for current and frequency conversion according to claim 1 and 2 is characterized in that:
Each output of m controllable switch element can be exported respectively or divide into groups to export the copped wave direct voltage, and the mean value of each copped wave direct voltage is determined constantly by the conducting that produces galvanic commutator segment arc length of this square wave and the galvanic controllable switch element of this square wave of output.
5, a kind of current and frequency conversion device, it has comprised DC power supply 1; Commutator brush 2; Commutator 3; First collector ring 4; Second collector ring 5; N collector ring 6; First collector ring brush 7; Second collector ring brush 8; N collector ring brush 9; First controllable switch element 10; Second controllable switch element 11; M controllable switch element 12; The conducting of controllable switch element triggers control device 13; Square wave DC load 14,15,16; First group of elementary winding 17 of inductive load; Second group of elementary winding 18 of inductive load; The y of inductive load organizes elementary winding 10; Pulsating direct current load 20,21,22; Secondary winding or intrinsic magnetic field 23,24; Load 25; Prime mover 26.It is characterized in that: utmost point of DC power supply (1) links to each other with the input of corresponding commutator brush (2), the output of commutator brush (2) links to each other with the input of commutator (3), p public output of the p of commutator (3) group commutator segment respectively or grouping continuous with each input of corresponding n collector ring (4), (5), (6), rotate simultaneously prime mover (26) drive commutator (3) and n collector ring (4), (5), (6).Each output of n collector ring (4), (5), (6) links to each other with each input of corresponding n collector ring brush (7), (8), (9) respectively, each output of n collector ring brush (7), (8), (9) respectively or grouping continuous with each input of corresponding m controllable switch element (10), (11), (12); Each control utmost point of m controllable switch element (10), (11), (12) links to each other with each start pulse signal output that the conducting of corresponding controllable switch element triggers control device (13) respectively; M controllable switch element (10), (11), (12) each output respectively or grouping organize elementary winding (17) with the y of corresponding inductive load, (18), (19) the public input of each links to each other, y organizes elementary winding (17), (18), (19) it is extremely continuous that each public output is connected to together another of back and corresponding DC power supply (1), the y of inductive load organizes elementary winding (17), (18), (19) by magnetic coupling secondary winding or the intrinsic magnetic field (23) corresponding with it, (24) link to each other secondary winding or intrinsic magnetic field (23), (24) alternating voltage or the active force of output supply load (25).Wherein, the output of first collector ring brush 7 or first controllable switch element 10 can directly be exported the square wave DC power supply when needed to supply with square wave DC load 14, the output of second collector ring brush 3 or second controllable switch element 11 when needed, can directly export the square wave DC power supply, to supply with square wave DC load 15, the output of n collector ring brush 9 or m controllable switch element 12 when needed, can directly export the square wave DC power supply, to supply with square wave DC load 16, the output of each collector ring brush or controllable switch element can with another or in addition the output of several collector ring brushs or controllable switch element merge output square wave DC power supply, to supply with the square wave DC load; The public output of first group of elementary winding 17 of inductive load when needed directly the output ripple direct current to supply with pulsating direct current load 20, the public output of second group of elementary winding 18 is direct output ripple direct current when needed, to supply with pulsating direct current load 21, the public output that y organizes elementary system group 10 is direct output ripple direct current when needed, to supply with pulsating direct current load 22.
6, current and frequency conversion device according to claim 5 is characterized in that: this device have n road or m road independently different separately constantly with the square wave DC pulse output of time, have the y road independently different separately constantly with the Rectified alternating current output of time.
7, according to the device of claim 5 or 6 described current and frequency conversions, it is characterized in that: DC power supply (1) can be one, also can be a plurality of; Commutator brush (2) can be one, also can be a plurality of.
8, the device of current and frequency conversion according to claim 7 is characterized in that: commutator brush (2) can move around commutator by brush-displacement mechanism.
9, the device of current and frequency conversion according to claim 8 is characterized in that: each elementary winding that the y of this inductive load organizes in elementary winding (17), (18), (19) is relatively independent.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108079 CN1102519A (en) | 1994-08-09 | 1994-08-09 | Method and device for current and frequency conversions |
| CN 95107968 CN1117664A (en) | 1994-08-09 | 1995-08-07 | inversion and frequency conversion method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108079 CN1102519A (en) | 1994-08-09 | 1994-08-09 | Method and device for current and frequency conversions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1102519A true CN1102519A (en) | 1995-05-10 |
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ID=5033339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94108079 Pending CN1102519A (en) | 1994-08-09 | 1994-08-09 | Method and device for current and frequency conversions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1102519A (en) |
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1994
- 1994-08-09 CN CN 94108079 patent/CN1102519A/en active Pending
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