CN1106174A - Method and device of current and frequency conversion - Google Patents
Method and device of current and frequency conversion Download PDFInfo
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- CN1106174A CN1106174A CN 94108078 CN94108078A CN1106174A CN 1106174 A CN1106174 A CN 1106174A CN 94108078 CN94108078 CN 94108078 CN 94108078 A CN94108078 A CN 94108078A CN 1106174 A CN1106174 A CN 1106174A
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Abstract
N controllable switch elements and their trigger units, on-off system and m groups of primary and secondary windings of inductive load or inherent magnetic field are used to convert DC power supply into square or pulse DC power supply or AC power supply. By changing the design, distribution and connection of said units, DC power supply may be converted into frequency-changing rotary magnetic field. The device has the features of inverse transformer, DC chopper and electric tractor and is suitable for frequency-speed changing motor, linear motor and chopping speed regulation.
Description
The present invention relates to a kind of method and apparatus of current and frequency conversion, some groups of elementary windings that particularly relate to several controllable switch element of a kind of usefulness (as thyristor etc.) and inductive load, 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.
Disclose a kind of method and apparatus that utilizes commutator to come the change of current in Chinese patent CN 1070520, 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 is manufactured very trouble.
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 that utilize several controllable switch element and inductive load and corresponding secondary winding or corresponding intrinsic magnetic field to come current and frequency conversion also provides a kind of device of the current and frequency conversion that produces according to this method simultaneously.
The purpose of foregoing invention solves by following method, this method is to trigger control device and breaking circuit system by n controllable switch element and conducting thereof, the m of inductive load organizes elementary winding and the secondary winding corresponding with it or corresponding main members such as intrinsic magnetic field and carries out the change of current, (said n, the quantitative relation of m is n 〉=m 〉=x 〉=1, inductive load be exchange the time, m and n are even numbers, inductive load be direct current the time, 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, and x＞1, down together), its concrete steps are:
The first step: the anode common port or the negative electrode common port that an end of DC power supply are inputed to n controllable switch element.
Second step: trigger control device and breaking circuit system by the conducting of controllable switch element, control the turn-on and turn-off of each controllable switch element, make the square wave direct current of the independent respectively different moment of output of n controllable switch element and time.
The 3rd step: the different moment that n controllable switch element exported respectively and the square wave direct current of time, the m that inputs to inductive load respectively organizes elementary winding, changes the m 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: n output by n controllable switch element independently exported the square wave direct current respectively, organized m public output of elementary winding by the m of inductive load and distinguishes 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.
Trigger the shutoff controlling schemes of controlling schemes or breaking circuit system by the conducting that changes n controllable switch element, or change above-mentioned two controlling schemes simultaneously, can change n controllable switch element separately output the galvanic moment of square wave and wavelength or frequency, the m that changes inductive load simultaneously organizes elementary winding the institute galvanic moment of output ripple and wavelength or frequency separately, along with the waveform or the frequency of the alternating current of the secondary winding output that also changes inductive load, or change the relation of the elementary winding electric of inductive load magnetic field and corresponding intrinsic magnetic field or the interaction force between the induced electromagnetic field.
Distinguish corresponding secondary winding or intrinsic magnetic field number and design by the elementary winding number that the m that changes inductive load organizes in the elementary winding in every group of elementary winding with design with it; Change the connection between each winding in every group of elementary winding; The corresponding m that changes n 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.
By increasing the conducting number of controllable switch element in the unit interval, what correspondingly change each output of n controllable switch element and heterogeneous inductive load respectively organizes connection between the public input of elementary winding, can make the secondary winding output many phase alternating current of heterogeneous 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; The mechanical type pulse generator is by DC power supply, by brush-displacement mechanism enclose commutator brush, commutator, collector ring and brush thereof that the commutator circumference moves and pulse transformer (can) and drive the main members such as prime mover that commutator and collector ring rotate and form.Specifically select any triggering controller for use, can by the characteristic of controllable switch element and inductive load need select.
There are some designs in the breaking circuit system of controllable switch element, concrete select any decision circuitry design for use, should by the feature of selected controllable switch element and inductive load need select, for the purpose of easy description, in the device that produces according to this method just the characteristic introduction of controllable switch element-triode thyristor commonly used a kind of.
Each output of n controllable switch element can be exported respectively or divide into groups to export the copped wave direct voltage, and the mean value of copped wave direct voltage is determined with turn-offing constantly constantly by the conducting of each controllable switch element.
Purpose of the present invention also can be achieved by following current and frequency conversion device, this current and frequency conversion device mainly comprises: DC power supply, n controllable switch element and conducting thereof trigger control device and breaking circuit system, the m of inductive load organize elementary winding and with its corresponding respectively secondary winding or corresponding intrinsic magnetic field and load thereof.Wherein, the negative or positive electrode of DC power supply links to each other with the anode common port or the negative electrode common port of n controllable switch element; Corresponding each triggering control signal output ends links to each other in each control utmost point of n controllable switch element and its conducting triggering control device, the breaking circuit element of n controllable switch element inserts in each controllable switch element main circuit by the shutoff feature of selected controllable switch element and the requirement of inductive load; Each output of n controllable switch element links to each other with each public input that the m of corresponding inductive load organizes elementary winding respectively, link together another of back and DC power supply of each public output that m organizes elementary winding extremely links to each other, the m 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 has the many advantages from commutation and externally commutated inverter and DC chopper and Electric Traction machinery.Wherein exclusive advantage be this device n controllable switch element at the same time triggering and conducting, do not turn-off simultaneously or not simultaneously under triggering and conducting, the situation of turn-offing simultaneously, their each output can be distinguished the rectangle direct current of independently exporting one tunnel a kind of wavelength, also can divide into groups or exports the square wave direct current of superposition jointly; N controllable switch element be simultaneously under triggering and conducting, the situation of not turn-offing simultaneously, their each output can distinguish or the divide into groups different moment of output and the square wave direct current of identical wavelength; Can distinguishing or divide into groups, output be different constantly, the square wave direct current of different wave length; Also can export the square wave direct current of n kind square wave direct current superposition jointly.N controllable switch element is at the same time under triggering and conducting, the situation of turn-offing simultaneously, their each output can be exported the square wave direct current of the identical moment, identical wavelength respectively, certainly, the m of its inductive load organizes each public output of elementary winding also just can export corresponding Rectified alternating current respectively, to supply with the pulsating direct current load.Wherein, each output of n controllable switch element is distinguished or divide into groups output or the common square wave direct current of exporting, and is to supply with the square wave DC load.Utilize above-mentioned characteristic, this device can design output large power, electrically magnetic field impulse and linear motor.
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.
In current and frequency conversion device shown in Figure 1, comprised DC power supply 1, first controllable switch element 2 and breaking circuit 5 thereof, and first group of elementary winding 12 of inductive load corresponding with it; Second controllable switch element 3 and breaking circuit 6 thereof, and second group of elementary winding 13 of inductive load corresponding with it; N controllable switch element 4 and breaking circuit 7 thereof, and inductive load m corresponding with it organizes elementary winding 14; The triggering control device 8 of n controllable switch element, square wave DC load 9,10,11 and pulsating direct current load 15,16,17, secondary winding or intrinsic magnetic field 18 and 19, load 20.Wherein, the output of first controllable switch element (2) can directly be exported the square wave DC power supply when needed to supply with square wave DC load 9, the output of second controllable switch element (3) when needed, can directly export the square wave DC power supply, to supply with square wave DC load 10, the output of n controllable switch element (4) when needed, can directly export the square wave DC power supply, to supply with square wave DC load 11, the output of each controllable switch element can with another or in addition the output of several 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 of inductive load (12) when needed directly the output ripple direct current to supply with pulsating direct current load 15, the public output of second group of elementary winding (13) is direct output ripple direct current when needed, to supply with pulsating direct current load 16, the public output that m organizes elementary winding (14) is direct output ripple direct current when needed, to supply with pulsating direct current load 17.
Above-mentioned 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 on-off with other; Inductive load is meant that each elementary winding of organizing in the elementary winding by bigger transmission of electricity, electrical appliance equipment, m of this inductive load of inductance such as the designed transformer of the needs of the pairing load of method and apparatus of current and frequency conversion, motor, solenoids is relatively independent.Connected mode between the winding should meet the feature of controllable switch element and the requirement of inductive load.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 feature and the requirement of breaking circuit and the requirement of inductive load of controllable switch element, respectively each controllable switch element is exported the Circuits System of control signal, this device can be independently, also can be to be connected with the load end of inductive load, can be mechanical type pulse generator (described in embodiment), also can be electronic impulser.
The breaking circuit system of controllable switch element, be meant the Circuits System that each controllable switch element that can guarantee conducting in moment of regulation and time is respectively turn-offed, this breaking circuit system must design by the requirement with the elementary winding of inductive load and secondary winding or intrinsic magnetic field and load thereof of the feature of controllable switch element.Breaking circuit in embodiment 2, be to design with regard to controllable switch element-triode thyristor commonly used and common inductive load-transformer, be a kind of conducting that utilizes a back thyristor, rely on the energy of converting capacitor to turn-off the thyristor circuit of previous conducting.Certainly, each controllable switch element can have the breaking circuit of oneself, and this design can make controllable switch element turn-off on demand.
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, and for triode thyristor, overvoltage protective circuit commonly used has capacitance-resistance protective circuit of diode etc.
Current and frequency conversion device of the present invention in several controllable switch element of use, has only one group of elementary winding normally of a controllable switch element and inductive load at any time.Permanent power current and frequency conversion device can have y controllable switch element and y to organize elementary winding normally (m 〉=y 〉=1).
Fig. 2 also is a kind of current and frequency conversion device of the present invention, be a kind of physical circuit figure of three-phase alternating current current and frequency conversion device, U is a main dc power supply in the drawings, U1, U2 and U3 are the DC power supply of mechanical type pulse generator, the 21st, the commutator brush G1 of mechanical type pulse generator, G2 and G3, the 22nd, the expanded view of commutator in the mechanical type pulse generator, E1 to E6 and K1 to K6 are main commutator segment and auxilliary commutator segment in the expanded view, 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, a slice master's commutator segment, the secondary commutator segment of a slice, a slice are assisted commutator segment (radian of every commutator segment is 5 degree); Mutually insulated between the commutator segment, the two adjacent groups commutator segment is ∏/6 at interval.The collector ring of this mechanical type pulse generator and corresponding collector ring also are divided into six groups, every group of brush that three collector rings and three correspondences are arranged, wherein, a main collector ring and main collector ring brush; An auxilliary collector ring and auxilliary collector ring brush; A secondary collector ring and secondary collector ring brush.B1 to B6 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; B " 1 to B " 6 and F " 1 to F " the 6th, secondary collector ring and secondary collector ring brush, commutator and collector ring are driven by prime mover and rotate.In circuit diagram, thyristor and conducting trigger control circuit thereof and breaking circuit are six groups, are divided into T1 group, T2 group, T3 group, T4 group, T5 group, T6 group; Every group has three triode thyristors; (in the T1 group is T1, T ' 1, T " 1), wherein, T1 to T6 and T ' 1 to T ' the 6th, main thyristor and auxilliary thyristor, T " 1 to T " the 6th, secondary thyristor.A converting capacitor; Wherein, C1 to C6 is respectively that T1 organizes the converting capacitor of organizing main thyristor T1 to T6 in the thyristor circuit to T6.Two diodes; Wherein, D1 to D6 and D ' 1 to D ' 6 are respectively that T1 organizes the isolating diode to the T6 group thyristor circuit.A variable resistor; Wherein, R1 to R6 is respectively that T1 organizes the variable resistor (effect is the charging interval of regulating converting capacitor C1 to C6) to the T6 group thyristor circuit.A slice master's commutator segment and a slice are assisted commutator segment; Wherein, E1 to E6 and K1 to K6 are respectively that T1 organizes main commutator segment and the auxilliary commutator segment to the T6 group thyristor circuit.The secondary commutator segment of a slice; Wherein, H1 to H6 is that T1 organizes to the secondary commutator segment of T6 group thyristor circuit.A main collector ring and corresponding main brush and an auxilliary collector ring and corresponding auxilliary brush, wherein, B1 to B6 and F1 to F6 and B ' 1 to B ' 6 and F ' 1 to F ' 6 are respectively that T1 organizes main collector ring and main collector ring brush and auxilliary collector ring and the auxilliary collector ring brush to the T6 group thyristor circuit; A secondary collector ring and corresponding brush, wherein, B " 1 to B " 6 and F " 1 to F " 6 are respectively that T1 organizes secondary collector ring and the secondary collector ring brush to the T6 group thyristor circuit, 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 the A1 group, the A2 group, the A3 group, the A4 group, the A5 group, the 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.
Briefly: T1 organizes to the T6 group thyristor circuit each element and has formed six groups of convertor assemblys, and these six groups of convertor assemblys can be exported the direct voltage of copped wave respectively; When T1 is organized to each output of T6 group convertor assembly respectively simultaneously the elementary winding A1 of corresponding transformer BM organize couple together to each input of A6 group after, by the magnetic coupling of transformer, the exportable alternating voltage of the output of its secondary winding.
The connection between each element is organized being connected of elementary winding input with its output with the A1 of transformer BM in the detailed description T1 group thyristor circuit below.For convenience of explanation, at first, we describe the connection of mechanical type pulse generator in detail; The input of commutator brush G1 joins in the positive pole of DC power supply U1 and 21, and the output of G1 and the commutator of rotation join; The input of commutator brush G2 in the positive pole of DC power supply U2 and 21 joins, and the output of brush G2 and the commutator of rotation join; The input of commutator brush G3 in the positive pole of DC power supply U3 and 21 joins.The output of brush G3 and the commutator of rotation join; Commutator brush G1, G2, G3 rely on independently to center on the brush-displacement mechanism that commutator moves respectively, the relative position between them are changed, (scope of variation will be adjusted under the prerequisite that guarantees the punctual turn-on and turn-off of main thyristor T1 to T6).The output of the main commutator segment E1 to E6 of commutator is respectively with corresponding and link to each other with the input of the main collector ring B1 to B6 of commutator coaxial rotation, the output of main collector ring B1 to B6 joins with corresponding main collector ring brush F1 to F6 input respectively, by the output of main collector ring brush F1 to F6 respectively output voltage be the square wave DC pulse of U1, to supply with the control utmost point that T1 organizes main thyristor T1 to T6 corresponding to the T6 group thyristor circuit.The output of the secondary commutator segment H1 to H6 of commutator is respectively with corresponding and link to each other with the input of the secondary collector ring B " 1 to B " 6 of commutator coaxial rotation, the output of secondary collector ring B " 1 to B " 6 joins with corresponding secondary collector ring brush F " 1 to F " 6 inputs respectively, by the output of secondary collector ring brush F " 1 to F " 6 respectively output voltage be the square wave DC pulse of U3, to supply with the control utmost point that T1 organizes secondary thyristor T " 1 to T " 6 corresponding to the T6 group thyristor circuit.The output of the auxilliary commutator segment K1 to K6 of commutator is respectively with corresponding and link to each other with the input of the auxilliary collector ring B ' 1 to B ' 6 of commutator coaxial rotation, the output of auxilliary collector ring B ' 1 to B ' 6 joins with corresponding auxilliary collector ring brush F ' 1 to F ' 6 input respectively, by the output of auxilliary collector ring brush F ' 1 to F ' 6 respectively output voltage be the square wave DC pulse of U2, to supply with the control utmost point that T1 organizes auxilliary thyristor T ' 1 to T ' 6 corresponding to the T6 group thyristor circuit.
Wherein, main thyristor T1 and secondary thyristor T " 1 anode links to each other with the positive pole of DC power supply U; the negative electrode of main thyristor T1 links to each other with the anode of isolating diode D1 and the end of converting capacitor C1; the negative electrode of isolating diode D1 links to each other with the 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 DC power supply U; " 1 negative electrode links to each other with the converting capacitor C1 other end with the anode of auxilliary thyristor T ' 1 secondary thyristor T; link to each other with the anode of isolating diode D ' 1 behind the negative electrode series connection variable resistor R1 of auxilliary thyristor T ' 1, the negative electrode of isolating diode D ' 1 links to each other with the negative pole of DC power supply U.The output of the main collector ring brush F1 of mechanical type pulse generator extremely links to each other with the control that T1 organizes the main thyristor T1 in the thyristor circuit, and the negative electrode of main thyristor T1 links to each other with the negative pole of DC power supply U2; The control of the secondary collector ring brush F of mechanical type pulse generator " 1 output is organized secondary thyristor T in the thyristor circuit with T1 " 1 extremely links to each other, and the negative electrode of secondary thyristor T ' 1 links to each other with the negative pole of DC power supply U3; The output of the auxilliary collector ring brush F ' 1 of mechanical type pulse generator extremely links to each other with the control that T1 organizes auxilliary thyristor T ' 1 in the thyristor circuit, and the negative electrode of auxilliary thyristor T ' 1 links to each other with the negative pole of DC power supply U2.T2 organizes to T6 group thyristor circuit, connection between each element and with transformer BM in corresponding elementary winding A2 organize to the connection of A6 group with the connection between each element in the T1 group thyristor circuit with identical with being connected of the elementary winding A1 group of transformer BM, here be not described in detail.
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 T1 organizes to T6 group thyristor circuit, main thyristor T1 to T6 evenly rotates the week square wave DC voltage waveform figure that exports respectively of institute at the commutator of mechanical type pulse generator, 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, C phase load, the alternating voltage waveform figure of 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 brush G1, the G2 of mechanical type pulse generator, G3 and the voltage oscillogram that obtains on the same axis of commutator the time.For the purpose of easy description, the method according to this invention designs the voltage oscillogram that other current and frequency conversion device is exported, and describes no longer one by one at this.
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 (10)
1, a kind of method of current and frequency conversion, this method is to trigger control device and breaking circuit system by n controllable switch element and conducting thereof, the m of inductive load organizes elementary winding and the secondary winding corresponding with it or corresponding main members such as intrinsic magnetic field and carries out the change of current, (quantitative relation of said n, m is n 〉=m 〉=x 〉=1, inductive load be exchange the time, m and n are even numbers, inductive load be direct current the time, 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, and x＞1, down together), the feature of this method is:
The first step: the anode common port or the negative electrode common port that an end of DC power supply are inputed to n controllable switch element.
Second step: trigger control device and breaking circuit system by the conducting of controllable switch element, control the turn-on and turn-off of each controllable switch element, make the square wave direct current of the independent respectively different moment of output of n controllable switch element and time.
The 3rd step: the different moment that n controllable switch element exported respectively and the square wave direct current of time, the m that inputs to inductive load respectively organizes elementary winding, changes the m 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: n output by n controllable switch element independently exported the square wave direct current respectively, organized m public output of elementary winding by the m of inductive load and distinguishes 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.
2, the method for current and frequency conversion according to claim 1 is characterized in that:
Trigger the shutoff controlling schemes of controlling schemes or breaking circuit system by the conducting that changes n controllable switch element, or change above-mentioned two controlling schemes simultaneously, can change n controllable switch element separately output the galvanic moment of square wave and wavelength or frequency, the m that changes inductive load simultaneously organizes elementary winding the institute galvanic moment of output ripple and wavelength or frequency separately, along with the waveform or the frequency of the alternating current of the secondary winding output that also changes inductive load, or change the relation of the elementary winding electric of inductive load magnetic field and corresponding intrinsic magnetic field or the interaction force between the induced electromagnetic field.
3, the method for current and frequency conversion according to claim 1 is characterized in that:
Distinguish corresponding secondary winding or intrinsic magnetic field number and design by the elementary winding number that the m that changes inductive load organizes in the elementary winding in every group of elementary winding with design with it; Change the connection between each winding in every group of elementary winding; The corresponding m that changes n 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.
4, the method for current and frequency conversion according to claim 1 is characterized in that:
By increasing the conducting number of controllable switch element in the unit interval, what correspondingly change each output of n controllable switch element and heterogeneous inductive load respectively organizes connection between the public input of elementary winding, can make the secondary winding output many phase alternating current of heterogeneous inductive load.
5, according to the method for claim 1 or 3 or 4 described current and frequency conversions, it is characterized in that:
The extremely needed trigger impulse control signal of each control of controllable switch element can be provided by dynamic mechanical type pulse generator; The mechanical type pulse generator is by DC power supply, by brush-displacement mechanism enclose commutator brush, commutator, collector ring and brush thereof that the commutator circumference moves and pulse transformer (can) and drive the main members such as prime mover that commutator and collector ring rotate and form.
6, the method for current and frequency conversion according to claim 1 is characterized in that:
Each output of n controllable switch element can be exported respectively or divide into groups to export the copped wave direct voltage, and the mean value of copped wave direct voltage is determined with turn-offing constantly constantly by the conducting of each controllable switch element.
7, a kind of current and frequency conversion device, it comprises: DC power supply 1; First controllable switch element 2 and breaking circuit 5 thereof, and first group of elementary winding 12 of inductive load corresponding with it; Second controllable switch element 3 and breaking circuit 6 thereof, and second group of elementary winding 13, the n controllable switch element 4 of inductive load corresponding and breaking circuit 7 thereof with it, and inductive load m corresponding with it organizes elementary winding 14; The triggering control device 8 of n controllable switch element, square wave DC load 9,10,11 and pulsating direct current load 15,16,17, secondary winding or intrinsic magnetic field 18 and 19, load 20.It is characterized in that: the negative or positive electrode of DC power supply (1) links to each other with the anode common port or the negative electrode common port of n controllable switch element (2), (3), (4); Corresponding each triggering control signal output ends links to each other in each control utmost point of n controllable switch element (2), (3), (4) and its conducting triggering control device (8); The breaking circuit (9) of n controllable switch element (2), (3), (4), (10), (11) element insert in each controllable switch element main circuit by the shutoff feature of selected controllable switch element and the requirement of inductive load; N controllable switch element (2), (3), (4) each output is organized elementary winding (12) with the m of corresponding inductive load respectively, (13), (14) the public input of each links to each other, m organizes elementary winding (12), (13), (14) each public output back that links together extremely links to each other with another of DC power supply (1), the m of inductive load organizes elementary winding (12), (13), (14) by magnetic coupling secondary winding or the intrinsic magnetic field (18) corresponding with it, (19) link to each other secondary winding or intrinsic magnetic field (13), (19) alternating voltage or the active force of output supply load (20).Wherein, the output of first controllable switch element (2) can directly be exported the square wave DC power supply when needed to supply with square wave DC load 9, the output of second controllable switch element (3) when needed, can directly export the square wave DC power supply, to supply with square wave DC load 10, the output of n controllable switch element (4) when needed, can directly export the square wave DC power supply, to supply with square wave DC load 11, the output of each controllable switch element can with another or in addition the output of several 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 of inductive load (12) when needed directly the output ripple direct current to supply with pulsating direct current load 15, the public output of second group of elementary winding (13) is direct output ripple direct current when needed, to supply with pulsating direct current load 16, the public output that m organizes elementary winding (14) is direct output ripple direct current when needed, to supply with pulsating direct current load 17.
8, the device of current and frequency conversion according to claim 7 is characterized in that:
N controllable switch element (2), (3), (4) at the same time triggering and conducting, do not turn-off simultaneously or not simultaneously under triggering and conducting, the situation about judging simultaneously, their each output can be distinguished the rectangle direct current of independently exporting one tunnel a kind of wavelength, also can divide into groups or exports the square wave direct current of superposition jointly; N controllable switch element (2), (3), (4) be simultaneously under triggering and conducting, the situation about not judging simultaneously, their each output can distinguish or the divide into groups different moment of output and the square wave direct current of identical wavelength; Can distinguishing or divide into groups, output be different constantly, the square wave direct current of different wave length; Also can export the square wave direct current of n kind square wave direct current superposition jointly.N controllable switch element (2), (3), (4) are at the same time under triggering and conducting, the situation of turn-offing simultaneously, their each output can be exported the square wave direct current of the identical moment, identical wavelength respectively, certainly, the m of its inductive load organizes each public output of elementary winding (12), (13), (14) also just can export corresponding Rectified alternating current respectively, to supply with the pulsating direct current load.Wherein, each output of n controllable switch element (2), (3), (4) is distinguished or divide into groups output or the common square wave direct current of exporting, and is to supply with the square wave DC load.
9, the device of current and frequency conversion according to claim 7 is characterized in that:
Each elementary winding that the m of this inductive load organizes in elementary winding (12), (13), (14) is relatively independent.
10, the device of current and frequency conversion according to claim 7 is characterized in that:
In several controllable switch element of using, has only one group of elementary winding normally of a controllable switch element and inductive load at any time.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94108078 CN1106174A (en) | 1994-08-09 | 1994-08-09 | Method and device of current and frequency conversion |
| CN 95107967 CN1117663A (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 94108078 CN1106174A (en) | 1994-08-09 | 1994-08-09 | Method and device of current and frequency conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1106174A true CN1106174A (en) | 1995-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94108078 Pending CN1106174A (en) | 1994-08-09 | 1994-08-09 | Method and device of current and frequency conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641656A (en) * | 2013-11-06 | 2014-03-19 | 马鞍山科邦生态肥有限公司 | An efficient manure fertilizer and a preparation method thereof |
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1994
- 1994-08-09 CN CN 94108078 patent/CN1106174A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103641656A (en) * | 2013-11-06 | 2014-03-19 | 马鞍山科邦生态肥有限公司 | An efficient manure fertilizer and a preparation method thereof |
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