JP2019046933A - Phase converter - Google Patents

Abstract

To provide a phase converter with less time and effort in winding work to wind a coil, which is capable of achieving reduced size and reduced weight in a coil.SOLUTION: In a phase converter, a plurality of coils are wound, based on Y-connection, around three iron cores corresponding to three phases such that a three-phase AC voltage input from each of three input terminals of R, S, T on a primary side is output from each of output terminals of 1u, 1v, 1w on a secondary side, the output terminals being points where phases do not change, and is also output from each of output terminals of 2u, 2v, 2w on the secondary side, the output terminals being points which are deviated in phases by 30 degrees from each line connecting between apexes of Y-connection and have a turn ratio corresponding to line-to-line voltage between phases indicated by the line, and when a three-phase AC voltage is input to each apex of the Y-connection, the AC voltage is converted into a six-phase AC voltage to be output.SELECTED DRAWING: Figure 1

Description

The present invention relates to a phase number converter for converting a three-phase AC voltage into an AC voltage of (3 × n) phase.

When converting 3-phase AC voltage to DC voltage, it is the most common method to use a full wave rectifier. The DC voltage obtained by directly inputting the 3-phase AC voltage to the full-wave rectifier is a large ripple (= ripple, ripple component included in the DC voltage) having a cycle of 6 times the power supply frequency ) Is included. In addition, harmonic components also become large, which causes various problems. An active filter is generally used to remove this harmonic component.

As a countermeasure against such an adverse effect caused by using a full-wave rectifier, there is a method of converting a three-phase alternating voltage into an alternating voltage of (3 × n) phase and then performing full-wave rectification. The DC voltage obtained by this method includes small ripples with a period of (3 × n) times the power supply frequency. In addition, since the harmonic components are also reduced, various benefits are produced.

As a configuration using a method of full-wave rectification after converting a three-phase AC voltage to an AC voltage of (3 × n) phase, the configuration of Patent Document 1 can be mentioned. In patent document 1, it has one iron core and secondary winding of star-shaped Y connection (star connection) and triangle delta connection (delta connection), and converts three-phase alternating current into six-phase alternating current. The configuration of the transformer is disclosed.

Japanese Utility Model Publication No. 62-81490

In such a transformer, the primary side is Δ-connected, the secondary side is in-phase Δ-connection and Y-connection shifted by 30 degrees, or the primary side is Y-connected and the secondary side is in-phase Y-connected and 30 In this configuration, the primary winding and the two secondary windings are wound around the outer periphery of the iron core in an insulated state.

However, in these prior art examples, since three coils are stacked in multiple layers on one iron core, it takes time and labor for winding in the manufacturing process, and there is a problem that the coils become large and heavy. .

Then, this invention aims at providing the phase number converter which can reduce the effort of the winding operation | work which winds a coil, and can reduce in size and weight of a coil, as what solves the above-mentioned subject.

The invention of claim 1 is
The input three-phase AC voltage is output from a point at which the phase does not change, and is out of phase by (60 / n) degrees from the line connecting the vertices of the Y connection, and the phase between the lines indicated by the line A plurality of coils are wound on each of three cores corresponding to three phases based on the Y connection so as to be output from the point of the turns ratio corresponding to the line voltage,
When a three-phase AC voltage is input to each vertex of the Y connection, it is converted into an AC voltage of (3 × n) phase and is output.

Also, the invention of claim 2 is
The input three-phase AC voltage is output from a point at which the phase does not change, and the phase is shifted by (60 / n) degrees from the line connecting each vertex of the Y connection and the middle point. A plurality of coils are wound on each of three cores corresponding to three phases based on the Y connection so as to be output from the point of the turns ratio corresponding to the phase voltage,
The middle point is grounded.
When a three-phase AC voltage is input to each vertex of the Y connection, it is converted into an AC voltage of (3 × n) phase and is output.

The invention of claim 3 is
The plurality of coils are connected to coils other than the first coil wound around an iron core other than the iron core wound with the first coil from the middle of the first coil wound around each iron core It is set as the phase number converter of Claim 1 or 2.

The invention of claim 4 is
The phase according to any one of claims 1 to 3, wherein the plurality of coils is a secondary side coil, and a coil on the primary side with respect to the plurality of coils is wound around each of the iron cores at a predetermined turns ratio. It was a number converter.

According to the invention of claims 1 to 4, the input three-phase AC voltage can be converted to an AC voltage of (3 × n) phase and can be output, and the total amount of windings can be reduced. Occur.

For example, since the path of the current flowing through the winding is shortened, load loss (= resistance loss due to resistance of the winding due to load current) can be reduced. When the load loss is reduced, the efficiency is increased, and it can be expected to suppress the Joule heat generation.

In addition, it enables simplification of manufacture, downsizing and weight reduction. Furthermore, the cost can be reduced.

In particular, according to the invention of claim 4, it is also possible to perform transformation by increasing or decreasing the turns ratio of the primary side coil with respect to the turn ratio of the plurality of secondary side coils.

It is a conceptual block diagram of the phase number converter of Embodiment 1 of this invention. It is a vector diagram which shows the input-output of the phase number converter of Embodiment 1 of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention. It is a vector diagram which shows the input-output of the phase number converter of other embodiment of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention. It is a vector diagram which shows the input-output of the phase number converter of other embodiment of this invention. It is a conceptual block diagram of the phase number converter of Embodiment 2 of this invention. It is a vector diagram which shows the input-output of the phase number converter of Embodiment 2 of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention. It is a vector diagram which shows the input-output of the phase number converter of other embodiment of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention. It is a vector diagram which shows the input-output of the phase number converter of other embodiment of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention. It is a vector diagram which shows the input-output of the phase number converter of other embodiment of this invention. It is a conceptual block diagram of the phase number converter of the other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described based on the drawings. Although “red”, “blue”, and “green” are described in appropriate places in the following figures, this is not possible to submit drawings in color in the patent application documents, so colors for convenience Are color-coded to indicate

<First Embodiment>
FIG. 1 is a conceptual configuration diagram of a phase number converter A that converts three-phase alternating current voltages into six-phase alternating current voltages and outputs them according to Embodiment 1 of the present invention.

The number-of-phases converter A is provided with iron cores each having winding portions 1 to 3 wound around and magnetically connected mutually (not shown).

The first coil 4 and the second coil 5 are wound around the winding portion 1. The first coil 6 and the second coil 7 are wound around the winding portion 2. The first coil 8 and the second coil 9 are wound around the winding portion 3. In addition, the turns ratio of 4, 6 and 8 of the first coil and 5, 7 and 9 of the second coil is "84.53" with respect to "115. 47".

The primary side of the phase number converter A is provided with three input terminals of R, S and T, and the secondary side is provided with six output terminals of 1u, 1v, 1w, 2u, 2v and 2w Is equipped. That is, the phase number converter A converts the input three-phase AC voltage into a six-phase AC voltage and outputs it. In the first embodiment, it is assumed that the line voltage between the phases is 200 (V).

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection.

The three lines going to the secondary side are 30 ("60 / n" from the line connecting each vertex of the Y connection, n = 2 in the first embodiment). Three-phase input is 6 To output at the phase) in order to output at a point where the phase is shifted inward, it is connected to the second coil of the other phase at a point halfway the first coil, either 2u, 2v, 2w Connected to the output terminal of the

Specifically, it is connected to the second coil 7 of the winding unit 2 from the point where the turns ratio of the first coil 4 of the winding unit 1 is "30.94", and is connected to the output terminal 2v. In addition, the winding ratio of the first coil 6 of the winding unit 2 is connected to the second coil 9 of the winding unit 3 from the point of "30.94", and is connected to the output terminal 2w. In addition, the winding ratio of the first coil 8 of the winding unit 3 is connected to the second coil 5 of the winding unit 1 from the point of “30.94”, and is connected to the output terminal 2 u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter A, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter A will be described. When the three-phase AC voltage is input, the phase number converter A converts it to a six-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

Further, the voltages output from the output terminals 2u, 2v, 2w are output at a point where the phase is shifted inward by 30 degrees from the line connecting the respective vertices of the Y connection, and = Output terminals are output through the coils whose turns ratio is set to be the same as the line voltage between input terminals R, S and T), so they are output from output terminals 2 u, 2 v and 2 w respectively The voltage value is substantially the same as the voltage value input from any one of the input terminals R, S, and T.

With such a configuration, the phase number converter A can convert the input three-phase AC voltage into a six-phase AC voltage and output it. Also, since the three lines directed to the secondary side are connected to the second coil of the other phase at a point halfway along the first coil, and a part of the first coil is used, the total amount of windings is It can be reduced and generates many benefits.

For example, since the path of the current flowing through the winding is shortened, load loss (= resistance loss due to resistance of the winding due to load current) can be reduced. When the load loss is reduced, the efficiency is increased, and it can be expected to suppress the Joule heat generation.

In addition, it enables simplification of manufacture, downsizing and weight reduction. Furthermore, the cost can be reduced.

Next, using the vector diagram of FIG. 2, the voltages output from the output terminals 2 u, 2 v, 2 w of the phase number converter A are each 30 degrees in phase from the line connecting each vertex of the Y connection. So that the voltage value output from each of the output terminals 2 u, 2 v, 2 w is equal to the voltage value input from any of the input terminals R, S, T. A method of designing the phase number converter A will be described.

As described above, in Embodiment 1 of the present embodiment, the inter-line voltage between phases is assumed to be 200 (V). Then, the phase is shifted inward by 30 degrees from the line connecting each vertex of the Y connection, and the voltage value output from each of the output terminals 2 u, 2 v, 2 w is either of the input terminals R, S, T Determine the point that will be the same as the voltage value input from.

Specifically, one interior angle of an equilateral triangle having "R · 1u", "S · 1v" and "T · 1w" as a vertex is 60 degrees. Then, in order to output the three-phase primary side input consisting of "R", "S" and "T" of each vertex from six phases, it is necessary to newly provide three secondary side outputs. . Therefore, each interior angle of 60 degrees is divided by 2 and a vector whose phase is shifted inward by 30 degrees is drawn from the line connecting the vertices of "R 1 u", "S 1 v" and "T 1 w" , Extend the winding ratio to "200". The reason for extending the turns ratio to “200” is to make the same as the inter-line voltage 200 (V) between the “R”, “S” and “T” phases.

Specifically, when the phase is shifted 30 degrees from the line connecting "R 1u" and "S 1v", the vector connecting "R 1u" and the middle point is extended to the turns ratio "200" The point that was made is "2w". Next, when the phase is shifted 30 degrees from the line connecting “S · 1v” and “T · 1w”, the point where the vector connecting “S · 1v” and the middle point is extended to the turns ratio “200” Becomes “2u”. Furthermore, when the phase is shifted 30 degrees from the line connecting “T · 1w” and “R · 1u”, the point where the vector connecting “T · 1w” and the middle point is extended to the turns ratio “200” It will be "2v".

Then, the vector V1 is extended from the point "2 w" in parallel with the vector connecting "T. 1 w" and the middle point to the vector connecting "S. 1 v" and the middle point. Further, the vector V2 is extended from the point "2 u" in parallel with the vector connecting "R 1 u" and the middle point to the vector connecting "T 1 w" and the middle point. Further, the vector V3 is extended from the point "2 v" in parallel with the vector connecting "S 1 v" and the middle point to the vector connecting "R 1 u" and the middle point.

Next, the value from the midpoint of the line connecting each vertex of the Y connection (= a point on any line connecting each vertex of the Y connection where the vertical line from the middle point meets) to the left and right vertices is Since the line voltage between the phases (= the distance between the lines connecting the vertices of the Y connection) is “200”, it is “100”. Then, the value X from each vertex “R · 1 u”, “S · 1 v” or “T · 1 w” to the middle point is “X = 115.4700538” according to the formula “100 / X = cos 30 °” It is derived. Therefore, the turns ratio of the first coils 4, 6 and 8 of the phase number converter A is determined to be "115.4700538".

Then, the value Z from each middle point to the middle point is derived as “Z = 57.7350” from the equation “Z / 100 = tan 30 °”. Also, the value from each middle point to the point “2w”, “2u” or “2v” is derived as “200− (115.4700538 + 57.7350) = 26.7949462”.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 6 and the second coil 9 of the phase number converter A and the second coil 9 of the phase number converter A is calculated.

Next, the value H from “the intersection point C1 of the line connecting the vector V1 and“ S · 1 v ”and“ T · 1 w ”” to the point “2 w” is an expression of “26.7949462 / H = sin 30 °” It is derived from “H = 53.5898924”. Similarly, from "the intersection point C2 of the line connecting the vector V2 and" T · 1w "and" R · 1u "to the point" 2u "," the vector V3 and "R · 1u" and " From the intersection point C3 of the line connecting S · 1w ′ ′, the value up to the point “2v” is derived as “53.5898924”.

Next, “the midpoint of the line connecting“ T · 1w ”and“ S · 1w ””, “2w” and “intersection C1” are the sides connecting “intersection C1” and “midpoint” of the triangle The value I is derived as “I = 46.4102082” from the formula “I / 53.5898924 = cos 30 °”. Then, “intersection C1” and “S · 1v” of a triangle having “S.1v” and a vector connecting the middle point and the vector V1 ”,“ intersection C1 ”and“ S · 1v ”as vertices The value J of the connecting side is derived as “J = 53.5897918” from the equation “100−46.4102082 = J”.

The interior angles of triangles with "S · 1v" and the middle point connected to the intersection point of vector V1 "," Intersection C1 "and" S · 1v "as triangles face each other," There is a relationship between the internal angle of "30 °" and the apex angle according to "intersection C1" of a triangle whose apex is "2w" and "intersection C1" of the line connecting "T 1w" and "S 1w" Therefore, it becomes “30 °”.

The interior angle of the triangle “S • 1v” having “S • 1v” and the middle point connected with each other and the intersection point of the vector V1 ”,“ intersection C1 ”and“ S • 1v ”is“ S • 1v ”. Since it overlaps with a vector shifted in phase by 30 degrees from the line connecting 1 v and T · 1 w, it becomes “30 °”.

Therefore, triangles whose vertices are “the vector that connects“ S · 1v ”and the middle point and the vector V1”, “intersection C1” and “S · 1v” are “the“ S · 1v ”and the middle point. Of the vector connecting V, the side connecting "the point of intersection of vector V1" and "point C1", the side connecting "the point of connecting vector" S. 1v "to the middle point, and the point of vector V1" and "S 1v" It is an equal isosceles triangle.

If a perpendicular line is drawn to the side connecting "Intersection C1" and "S 1v" from "The intersection of vector" V "with the vector connecting" S 1v "and the middle point", the point where it collides is "Intersection C1" And the middle point of the side connecting “S · 1v”. The value from this middle point to the left and right vertices is "26.7948959".

Then, “the vector connecting the“ S · 1v ”and the middle point, the value of the side connecting the“ intersection point of the vector V1 ”and the“ intersection C1 ”,“ the vector connecting “S · 1v” and the middle point, and the vector The value K of the side connecting the point of intersection of V1 and "S · 1v" is derived as "K = 30.94008072" from the formula of "26.7948959 / K = cos 30 °". Also, the value of the vector V1 is derived as "53.5897918 + 30.94008072 = 84.52987252".

From the above results, the point "30.94" of the first coil 6 of the phase number converter A is connected to the second coil 9, and the turns ratio of the second coil 9 of the phase number converter A is "84. .53 ".

The structures of the first coil 6 and the second coil 9 of the phase number converter A and the structures of the other first coils and the second coil of the phase number converter A are the same. Therefore, the point "30.94" of the first coil 4 of the phase number converter A is connected to the second coil 7, and the turns ratio of the second coil 7 of the phase number converter A is "84.53" , And is connected to the second coil 5 from the point of "30.94" of the first coil 8 of the phase number converter A, and the turns ratio of the second coil 5 of the phase number converter A is "84. 53 ".

<Modification 1>
In Embodiment 1 of the present embodiment, the configuration of the phase number converter A is described, which converts alternating voltages input in three phases into six-phase alternating voltages and outputs the voltage. However, the present invention is not limited to this configuration. For example, as shown in FIG. 3, it is good also as composition of phase number converter B which converts into three-phase alternating current voltage, and outputs it in three-phase alternating current voltage.

FIG. 3 is a conceptual block diagram of a phase number converter B which converts AC voltages input in three phases into AC voltages in nine phases and outputs the AC voltages.

The number-of-phases converter B is provided with iron cores (not shown) each having a winding portion 21 to 23 wound around and magnetically connected to each other.

The first coil 24, the second coil 25 and the third coil 26 are wound around the winding portion 21. The first coil 27, the second coil 28 and the third coil 29 are wound around the winding portion 22. The first coil 30, the second coil 31, and the third coil 32 are wound around the winding portion 23. In addition, the turns ratio of the first coils 24, 27 and 30, the second coils 25, 28 and 31, and the third coils 26, 29, 32 is “115.47”, “61.44”, “61. 44 ".

The primary side of the phase number converter B is provided with three input terminals of R, S and T, and the secondary side has 1u, 1v, 1w, 2u, 2v, 2w, 3u, 3v, There are 9 output terminals of 3w. That is, the phase number converter B converts the input three-phase AC voltage into a nine-phase AC voltage and outputs it.

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection.

Then, six lines going to the secondary side are 20 ("60 / n" in the present modification 1 and n = 3 in the present modification 1 from the line connecting each vertex of the Y connection, and the input of three phases is nine phases. In order to output at a point where the phase is shifted inward, the intermediate coil of the first coil is connected to the second coil of the other phase, and the third coil of the other phase And 2 u, 2 v, 2 w, 3 u, 3 v, 3 w output terminals.

Specifically, the winding ratio of the first coil 24 of the winding unit 21 is connected to the third coil 29 of the winding unit 22 from the point of "13.93", and is connected to the output terminal 2v, and the winding unit It is connected to the 23rd 2nd coil 31, and is connected to output terminal 3w. In addition, the winding ratio of the first coil 27 of the winding unit 22 is connected to the third coil 32 of the winding unit 23 from the point of “13.93” and is connected to the output terminal 2 w. It is connected to the 2 coil 25 and connected to the output terminal 3u. Further, the winding ratio of the first coil 30 of the winding unit 23 is connected to the second coil 28 of the winding unit 22 from the point of “13.93”, and is connected to the output terminal 3v. It is connected to the 3-coil 26 and connected to the output terminal 2u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter B, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter B will be described. When the three-phase AC voltage is input, the phase number converter B converts it into a nine-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

The voltages output from the output terminals 2u, 2v, 2w, 3u, 3v and 3w are output at a point where the phase is shifted inward by 20 degrees from the line connecting the respective vertices of the Y connection, and The output terminals 2u, 2v, 2w, 3u, and so on are outputted through the coils whose turns ratio is set to be the same as the line voltage between the phases (= input terminals R, S, T). The voltage values respectively output from 3v and 3w are substantially the same as the voltage values input from any of the input terminals R, S and T.

Next, using the vector diagram of FIG. 4, the voltages outputted from the output terminals 2u, 2v, 2w, 3u, 3v and 3w of the phase number converter B are respectively obtained from the line connecting the vertices of the Y connection 20 And the voltage value output from each of the output terminals 2u, 2v, 2w, 3u, 3v, 3w is any of the input terminals R, S, T. The design method of the phase number converter B which makes it the same as the voltage value input from heel is demonstrated.

The phase deviates inward by 20 degrees from the line connecting the vertices of the Y connection, and the voltage values respectively output from the output terminals 2 u, 2 v, 2 w, 3 u, 3 v, 3 w are input terminals R, S, Determine the point that becomes the same as the voltage value input from any of T.

Specifically, one interior angle of an equilateral triangle having "R · 1u", "S · 1v" and "T · 1w" as a vertex is 60 degrees. Then, in order to output the three-phase primary side input consisting of “R”, “S” and “T” of each vertex from nine phases, it is necessary to newly provide six secondary side outputs. . Therefore, each interior angle of 60 degrees is divided by three, and a vector whose phase is shifted inward by 20 degrees is drawn from the line connecting the vertices of "R 1 u", "S 1 v" and "T 1 w" , Extend the winding ratio to "200". The reason for extending the turns ratio to “200” is to make the same as the inter-line voltage 200 (V) between the “R”, “S” and “T” phases.

Specifically, the point shifted by 20 degrees from the line connecting “R · 1 u” and “S · 1 v” and extended to the turns ratio “200” is “2 w”. Further, a point shifted by 20 degrees from the line connecting “R · 1 u” and “T · 1 w” and extended to the turns ratio “200” becomes “3 v”. Further, a point shifted by 20 degrees from the line connecting “T · 1w” and “R · 1u” and extended to the turns ratio “200” becomes “2v”. Further, a point shifted by 20 degrees from the line connecting “T · 1w” and “S · 1v” and extended to the turns ratio “200” is “3u”. Further, a point shifted by 20 degrees from the line connecting “S · 1 v” and “T · 1 w” and extended to the turns ratio “200” becomes “2 u”. Further, a point shifted by 20 degrees from the line connecting “S · 1 v” and “R · 1 u” and extended to the turns ratio “200” becomes “3 w”.

Then, the vector V4 is extended from the point "2 w" in parallel with the vector connecting "T. 1 w" and the middle point to the vector connecting "S. 1 v" and the middle point. Also, the vector V5 is extended from the point "3u" in parallel with the vector connecting "R · 1u" and the middle point to the vector connecting "S · 1v" and the middle point. Further, the vector V6 is extended from the point "2 u" in parallel with the vector connecting "R 1 u" and the middle point to the vector connecting "T 1 w" and the middle point. Also, the vector V7 is extended from the point "3 v" in parallel with the vector connecting "S 1 v" and the middle point to the vector connecting "T 1 w" and the middle point. Further, the vector V8 is extended from the point "2 v" in parallel with the vector connecting "S 1 v" and the middle point to the vector connecting "R 1 u" and the middle point. Further, the vector V9 is extended from the point "3 w" in parallel with the vector connecting "T. 1 w" and the middle point to a vector connecting "R. 1 u" and the middle point.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 27 and the third coil 32 of the phase number converter B and the third coil 32 of the phase number converter B is calculated.

Extend the vector V4 on the line connecting "R 1u" and "S 1v". Then, triangles “R · 1u” and “2w” whose vertices are “R · 1u”, “2w” and “the point of intersection of the vector V4 and the line connecting“ R · 1u ”and“ S · 1v ”” The value L of the side connecting “2w” and “the vector V 4, and the point of intersection of the line connecting“ R · 1u ”and“ S · 1v ”” is “L. From the equation of / 200 = sin 20 °, “L = 68.40402867” is derived. In addition, the value M of the side connecting “R · 1u”, “vector V4 and the line connecting“ R · 1u ”and“ S · 1v ”” in the same triangle is “M / 200 = cos 20 °” From the equation of, it is derived as “M = 187.9385242”.

In addition, “the intersection point of vector V4 and the vector connecting“ S · 1v ”and the middle point”, “the intersection point of vector V4 and the line connecting“ R · 1u ”and“ S · 1v ”” and “S -The value of the side connecting "S- 1v" with the triangle "vector V4 having a vertex of 1v" and the point at which the line connecting "R 1u" and "S 1v" connects "200-187. From the equation of 9385242 ", it is derived as" 12.0614758 ". Therefore, in the same triangle, "the point of intersection between vector V4 and the vector connecting" S 1v "and the middle point", "the point of intersection of vector V4 with the line connecting" R 1u "and" S 1v "" The value N of the side connecting together is derived as "N = 6.9636963" from the equation "N / 12.064758 = tan 30 °". Also, as described above, the value L of the side connecting “2w” and “the point of intersection of the vector V 4 and the line connecting“ R · 1u ”and“ S · 1v ”” is “68.40402867”. Of the side connecting “the point of intersection of vector V4 with the vector connecting“ S · 1v ”and the middle point” and “the point of intersection of vector V4 with the line connecting“ R · 1u ”and“ S · 1v ”” When the value “6.9636963” is subtracted, the value of the vector V4 is derived as “61.403323237”.

In addition, “the intersection point of vector V4 and the vector connecting“ S · 1v ”and the middle point”, “the intersection point of vector V4 and the line connecting“ R · 1u ”and“ S · 1v ”” and “S The value O of the side connecting “S. 1v” and “the point of intersection of“ vector V 4 of the triangle having a vertex of 1 v ”and the vector connecting“ S 1 v ”and the middle point” ”is“ 12.0614758 / O “O = 13.9273926” is derived from the equation of “cos 30 °”.

From the above results, the point of “13.93” of the first coil 27 of the phase number converter B is connected to the third coil 32, and the turns ratio of the third coil 32 of the phase number converter B is “61 .44 ".

The structures of the first coil 27 and the third coil 32 of the phase number converter B and the structures of the other first coil, second coil and third coil of the phase number converter B are similar. Therefore, it is determined that the point "13.93" of the first coil 27 of the phase number converter B is connected to the second coil 25, and the turns ratio of the second coil 25 is determined as "61.44". Ru. Moreover, while being connected to the 3rd coil 29 from the point of "13.93" of the 1st coil 24 of phase number converter B, it is connected to the 2nd coil 31, and the number of turns of the 3rd coil 29 and the 2nd coil 31 The ratio is determined to be "61.44". Furthermore, while being connected to the 3rd coil 26 from the point of "13.93" of the 1st coil 30 of phase number converter B, it is connected to the 2nd coil 28, and the number of turns of the 3rd coil 26 and the 2nd coil 28 The ratio is determined to be "61.44".

<Modification 2>
For example, as shown in FIG. 5, it may be configured as a phase number converter C which converts AC voltages inputted in three phases into AC voltages of 12 phases and outputs them.

FIG. 5 is a conceptual block diagram of a phase number converter C that converts three phase AC voltage into 12 phase AC voltage and outputs it.

The number-of-phases converter C is provided with iron cores (not shown) each having a winding portion 41-43 wound around and magnetically connected to each other.

The first coil 44, the second coil 45, the third coil 46, and the fourth coil 47 are wound around the winding portion 41. The first coil 48, the second coil 49, the third coil 50, and the fourth coil 51 are wound around the winding portion 42. The first coil 52, the second coil 53, the third coil 54, and the fourth coil 55 are wound around the winding portion 43. Further, the turns ratio of the first coil 44, 48 and 52, the second coil 45, 49 and 53, the third coil 46, 50 and 54, and the fourth coil 47, 51 and 55 is "115. 47". , "84.53", "47.83", "47.83".

The primary side of the phase number converter C is provided with three input terminals of R, S and T, and the secondary side has 1u, 1v, 1w, 2u, 2v, 2w, 3u, 3v, There are 12 output terminals of 3w, 4u, 4v and 4w. That is, the phase number converter C converts the input three-phase AC voltage into a 12-phase AC voltage and outputs it.

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection.

Then, nine lines going to the secondary side are 15 ("60 / n" from the line connecting each vertex of the Y connection, n = 4 in the first embodiment example 1. The input of three phases is 12) Phase to output at a point where the phase is shifted inward, or at a point where the 30 degree (= 15 degrees × 2) phase is shifted inward, so the middle of the first coil The point is connected to the second phase coil, the third phase coil or the fourth phase coil of another phase and is connected to the output terminal of 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w .

Specifically, the winding portion 41 is connected to the fourth coil 51 of the winding portion 42 from the point where the turns ratio of the first coil 44 of the winding portion 41 is “7.86” and is connected to the output terminal 2v, and the winding portion It is connected to the 43rd 3rd coil 54, and is connected to output terminal 3w. Further, from the point where the turns ratio of the first coil 44 of the winding portion 41 is "30.94", it is connected to the second coil 49 of the winding portion 42 and is connected to the output terminal 4v.

The third coil of the winding portion 41 is connected to the fourth coil 55 of the winding portion 43 from the point where the turns ratio of the first coil 48 of the winding portion 42 is “7.86” and is connected to the output terminal 2 w It is connected to 46 and connected to the output terminal 3u. Further, from the point where the turns ratio of the first coil 48 of the winding portion 42 is "30.94", it is connected to the second coil 53 of the winding portion 43 and is connected to the output terminal 4w.

The third coil of the winding portion 42 is connected to the fourth coil 47 of the winding portion 41 from the point where the turns ratio of the first coil 52 of the winding portion 43 is “7.86” and is connected to the output terminal 2 u 50 are connected to the output terminal 3v. In addition, the winding ratio of the first coil 52 of the winding unit 43 is connected to the second coil 45 of the winding unit 41 from the point of “30.94”, and is connected to the output terminal 4 u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter C, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter C will be described. When the three-phase AC voltage is input, the phase number converter C converts it into a 12-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

The voltage output from each of the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w is a point at which the phase is shifted inward by 15 degrees from the line connecting the vertices of the Y connection. Or, it is output at a point where the phase is shifted inward by 30 degrees, and passes through a coil whose turns ratio is set to be the same as the line voltage between the phases (= between input terminals R, S and T). Therefore, voltage values respectively output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w are input from any of the input terminals R, S and T. It is almost the same as the voltage value.

Next, using the vector diagram of FIG. 6, the voltages outputted from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w of the phase number converter C are shown at each vertex of the Y connection. Is output at a point at which the phase is shifted inward by 15 degrees or a point at which the phase is shifted inward by 30 degrees, and the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u , 4v and 4w will be described in the design method of the phase number converter C so that the voltage values respectively output from the input terminals R, S and T are the same.

First, the phase is shifted inward by 15 degrees from the line connecting the vertices of the Y connection, and the voltage values output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w are the input terminal R, The point which becomes the same as the voltage value inputted from either S or T is determined.

Specifically, one interior angle of an equilateral triangle having "R · 1u", "S · 1v" and "T · 1w" as a vertex is 60 degrees. Then, in order to output the 3-phase primary side input consisting of "R", "S" and "T" of each vertex from 12 phases, it is necessary to newly provide 9 secondary side outputs. . Therefore, each interior angle of 60 degrees is divided by 4 to extract a vector whose phase is shifted inward by 15 degrees from the line connecting the vertices of "R 1 u", "S 1 v" and "T 1 w" , Extend the winding ratio to "200". The reason for extending the turns ratio to “200” is to make the same as the inter-line voltage 200 (V) between the “R”, “S” and “T” phases.

Specifically, the point shifted by 15 degrees from the line connecting “R · 1 u” and “S · 1 v” and extended to the turns ratio “200” is “2 w”. In addition, the point shifted 15 degrees from the line connecting “R · 1 u” and “T · 1 w” and extended to the turns ratio “200” becomes “3 v”. In addition, the point shifted 15 degrees from the line connecting “T · 1w” and “R · 1u” and extended to the turns ratio “200” becomes “2v”. In addition, the point shifted 15 degrees from the line connecting “T · 1w” and “S · 1v” and extended to the turns ratio “200” becomes “3u”. Further, a point shifted by 15 degrees from the line connecting “S · 1 v” and “T · 1 w” and extended to the turns ratio “200” becomes “2 u”. Further, a point shifted by 15 degrees from the line connecting “S · 1 v” and “R · 1 u” and extended to the turns ratio “200” becomes “3 w”.

Then, the vector V44 is extended from the point "2 w" in parallel with the vector connecting "T. 1 w" and the middle point to the vector connecting "S. 1 v" and the middle point. Further, the vector V45 is extended from the point "3u" in parallel with the vector connecting "R · 1u" and the middle point to the vector connecting "S · 1v" and the middle point. Also, the vector V46 is extended from the point "2u" in parallel with the vector connecting "R · 1u" and the middle point to the vector connecting "T · 1w" and the middle point. Also, the vector V47 is extended from the point "3 v" in parallel with the vector connecting "S 1 v" and the middle point to the vector connecting "T 1 w" and the middle point. Furthermore, the vector V 48 is extended from the point “2v” in parallel with the vector connecting “S · 1v” and the middle point to the vector connecting “R · 1u” and the middle point. Also, the vector V 49 is extended from the point “3 w” in parallel with the vector connecting “T · 1 w” and the middle point to the vector connecting “R · 1 u” and the middle point.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 48 and the fourth coil 55 of the phase number converter C and the fourth coil 55 of the phase number converter C is calculated.

The vector V44 is extended on the line connecting "R 1u" and "S 1v". Then, triangles “R · 1u” and “2w” whose vertices are “R · 1u”, “2w” and “the point of intersection of the vector V44 and the line connecting“ R · 1u ”and“ S · 1v ”” The value P of the side connecting “2w” and “the vector V 44, and the point of intersection of the line connecting“ R · 1u ”and“ S · 1v ”” is “P. From the equation of / 200 = sin 15 °, “P = 51.76380902” is derived. Also, the value Q of the side connecting “R · 1u”, “vector V44, and the line connecting“ R · 1u ”and“ S · 1v ”” in the same triangle is “Q / 200 = cos 15 °” From the equation of, it is derived as “Q = 193.1851653”.

In addition, “the intersection point of the vector V44 and the vector connecting“ S · 1v ”and the middle point”, “the intersection point of the vector V44 and the line connecting“ R · 1 u ”and“ S · 1 v ”” and “S -The value of the side connecting "S-1v" with the triangle "vector V44 and the point of intersection of the line connecting" R-1u "and" S-1v "with" 1v "as a vertex is" 200-193. "6.8148347" is derived from the equation "1851653". Therefore, in the same triangle, "the point of intersection between vector V44 and the vector connecting" S 1v "and the middle point", "the point of intersection of vector V44 and the line connecting" R 1u "and" S 1v "" The value R of the side connecting the two is derived as “R = 3.934546649” from the equation “R / 6.8148347 = tan 30 °”. Also, as described above, the value P of the side connecting “2w” and “the point of intersection of the vector V44 and the line connecting“ R · 1u ”and“ S · 1v ”” is “51.76380902”. Of the side connecting “the point of intersection of vector V44 and the vector connecting“ S · 1v ”and the middle point” and “the point of intersection of vector V44 and the line connecting“ R · 1u ”and“ S · 1v ”” Subtracting the value "3.934546649" derives the value of the vector V44 as "47.82926237".

In addition, “the intersection point of the vector V44 and the vector connecting“ S · 1v ”and the middle point”, “the intersection point of the vector V44 and the line connecting“ R · 1 u ”and“ S · 1 v ”” and “S The value S of the side connecting “S. 1v” and “the point of intersection of“ vector V 44 of the triangle having a vertex of 1 v ”and the vector connecting“ S 1 v ”and the middle point” ”is“ 6.8148347 / S “S = 7.869093297” is derived from the formula of “cos 30 °”.

From the above results, the point "7.86" of the first coil 48 of the phase number converter C is connected to the fourth coil 55, and the turns ratio of the fourth coil 55 of the phase number converter C is "47 .83 ".

The structures of the first coil 48 and the fourth coil 55 of the phase number converter C and the structures of the first coil 48 and the third coil 46 of the phase number converter C are the same. Further, these structures, the structure of the first coil 52 and the fourth coil 47 of the phase number converter C, the structure of the first coil 52 and the third coil 50 of the phase number converter C, the third of the phase number converter C The structures of the first coil 44 and the fourth coil 51, and the structures of the first coil 44 and the third coil 54 of the phase number converter C are similar.

Therefore, it is determined that the third coil 46 is connected from the point "7.86" of the first coil 48 of the phase number converter C, and the turns ratio of the third coil 46 is determined as "47.83" Ru. Moreover, while being connected to the 4th coil 47 from the point of "7.86" of the 1st coil 52 of phase number converter C, it is connected to the 3rd coil 50, and the number of turns of the 4th coil 47 and the 3rd coil 50 The ratio is determined as "47.83". Furthermore, while being connected to the 4th coil 51 from the point of "7.86" of the 1st coil 44 of phase number converter C, it is connected to the 3rd coil 54, and the number of turns of the 4th coil 51 and the 3rd coil 54 The ratio is determined as "47.83".

Next, the phase is shifted inward by 30 degrees from the line connecting each vertex of the Y connection, and the voltage value output from each of the output terminals 4u, 4v, 4w is either of the input terminals R, S, T Determine the point that will be the same as the voltage value input from the heel.

Specifically, from the line connecting the vertices of the Y connection 15 degrees inward from the line connecting the vertices of the Y connection, the line that the phase is further shifted inward 15 degrees, that is, the line connecting the vertices of the Y connection Draw out a line which is shifted inward by 30 degrees and extend it to a turns ratio of "200".

Specifically, when the phase is shifted 30 degrees from the line connecting "R 1u" and "S 1v", the vector connecting "R 1u" and the middle point is extended to the turns ratio "200" "4w" is the point you Next, when the phase is shifted 30 degrees from the line connecting “S · 1v” and “T · 1w”, the point where the vector connecting “S · 1v” and the middle point is extended to the turns ratio “200” Becomes “4u”. Furthermore, when the phase is shifted 30 degrees from the line connecting “T · 1w” and “R · 1u”, the point where the vector connecting “T · 1w” and the middle point is extended to the turns ratio “200” It becomes "4v".

Then, the vector V41 is extended from the point "4w" in parallel with the vector connecting "T · 1w" and the middle point to a vector connecting "S · 1v" and the middle point. Also, the vector V42 is extended from the point "4u" in parallel with the vector connecting "R · 1u" and the middle point to the vector connecting "T · 1w" and the middle point. Further, the vector V43 is extended from the point "4 v" in parallel with the vector connecting "S 1 v" and the middle point to the vector connecting "R 1 u" and the middle point.

Next, the value from the midpoint of the line connecting each vertex of the Y connection (= a point on any line connecting each vertex of the Y connection where the vertical line from the middle point meets) to the left and right vertices is Since the line voltage between the phases (= the distance between the lines connecting the vertices of the Y connection) is “200”, it is “100”. Then, the value X from each vertex “R · 1 u”, “S · 1 v” or “T · 1 w” to the middle point is “X = 115.4700538” according to the formula “100 / X = cos 30 °” It is derived. Therefore, the turns ratio of the first coils 44, 48, 52 of the phase number converter C is determined as "115.4700538".

Then, the value Z from each middle point to the middle point is derived as “Z = 57.7350” from the equation “Z / 100 = tan 30 °”. Also, the value from each midpoint to the point “4w”, “4u” or “4v” is derived as “200− (115.4700538 + 57.7350) = 26.7949462”.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 48 and the second coil 53 of the phase number converter C and the second coil 53 of the phase number converter C is calculated.

The value H from "the intersection point C41 of the line connecting the vector V41," S 1v "and" T 1w "to the point" 4w "is" H. "from the formula" 26.7949462 / H = sin 30 ° " It is derived as "53.5898924". Similarly, the value from “Intersection C42 of line connecting vector V42 and“ T · 1w ”and“ R · 1u ”” to point “4u”, “vector V43,“ R · 1u ”and“ From the intersection point C43 of the line connecting S · 1w ′ ′, the value up to the point “4v” is derived as “53.5898924”.

Next, a side connecting “intermediate point” and “intersection C41” of a triangle having “T · 1w” and “S · 1w” at the midpoint, a point “4w” and “intersection C41” as a vertex The value I of is derived as “I = 46.4102082” from the formula “I / 53.58.98924 = cos 30 °”. Then, “intersection C41” and “S · 1v” of a triangle having “S.1v” and a vector connecting the middle point and the vector V41, “intersection C41” and “S · 1v” as vertices. The value J of the connecting side is derived as “J = 53.5897918” from the equation “100−46.4102082 = J”.

The interior angles of the triangle “A'1 V” and the middle point are intersected by the vector “V” and the intersection point “C41” of the triangle having the intersection point “C41” and “S1 v” as the apex, “ There is a relationship between the internal angle of "30 °" and the vertex angle according to "intersection C41" of a triangle whose apex is "4w" and "intersection C41" of the line connecting "T 1w" and "S 1w". Therefore, it becomes “30 °”.

The interior angle of the triangle “S • 1v” having “S • 1v” and a vector connecting the middle point and the intersection point of the vector V41, “intersection C41” and “S • 1v” is “S • 1v”. Since it overlaps with a vector shifted in phase by 30 degrees from the line connecting 1 v and T · 1 w, it becomes “30 °”.

Therefore, a triangle having “S.1v” and the vector connecting the middle point and the intersection point of the vector V41, “intersection C41” and “S.1v” as the vertices is “S.1v” and the middle point , The side connecting the intersection point of the vector V41 and the “intersection C41”, the side connecting the “vector connecting the“ S · 1v ”and the middle point, the intersection point of the vector V41” and “S · 1v” It is an equal isosceles triangle.

If a perpendicular line is drawn to the side connecting "Intersection C41" and "S 1v" from "The intersection of vector" V "with the vector connecting" S 1v "and the middle point", the collided point is "Intersection C41" And the middle point of the side connecting “S · 1v”. The value from this middle point to the left and right vertices is "26.7948959".

Then, “the vector connecting the“ S · 1v ”and the middle point, the value of the side connecting the“ intersection point of the vector V41 ”and the“ intersection C41 ”,“ the vector connecting the “S · 1v” and the middle point, the vector The value K of the side connecting the intersection point of V41 and S · 1v is derived as “K = 30.94008072” from the formula “26.7948959 / K = cos 30 °”. Also, the value of the vector V1 is derived as "53.5897918 + 30.94008072 = 84.52987252".

From the above results, the point "30.94" of the first coil 48 of the phase number converter C is connected to the second coil 53, and the turns ratio of the second coil 53 of the phase number converter C is "84 .53 ".

The structure of the first coil 48 and the second coil 53 of the phase number converter C, the structure of the first coil 52 and the second coil 45 of the phase number converter C, the first coil 44 and the second coil of the phase number converter C The structure of the coil 49 is similar.

Therefore, the point "30.94" of the first coil 52 of the phase number converter C is connected to the second coil 45, and the turns ratio of the second coil 45 of the phase number converter C is "84.53" And the turns ratio of the second coil 49 of the phase number converter C is “84. It is determined from the point“ 30.94 ”of the first coil 44 of the phase number converter C. 53 ".

Embodiment 2
In the second embodiment, unlike the first embodiment described above, each line from the three input terminals of R, S, and T on the primary side connected by Y connection is grounded (= The potential is 0).

FIG. 7 is a conceptual configuration diagram of a phase number converter D that converts three-phase alternating current voltages into six-phase alternating current voltages and outputs them according to Embodiment 2 of the present invention.

The number-of-phases converter D is provided with iron cores (not shown) each having a winding portion 11 to 13 wound around and magnetically connected to each other.

The first coil 14 and the second coil 15 are wound around the winding portion 11. The first coil 16 and the second coil 17 are wound around the winding portion 12. The first coil 18 and the second coil 19 are wound around the winding portion 13. In addition, the turns ratio of the first coil 14, 16, 18 and the second coil 15, 17, 19 is "115.47" with respect to "200".

The primary side of the phase number converter D is provided with three input terminals of R, S and T, and the secondary side has six output terminals of 1u, 1v, 1w, 2u, 2v and 2w Is equipped. That is, the phase number converter D converts the input three-phase AC voltage into a six-phase AC voltage and outputs it. In the second embodiment, the phase voltage from the middle point is assumed to be 200 (V).

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection. The middle point of the Y connection is grounded (= potential 0).

The three lines going to the secondary side are 30 ("60 / n" from the second embodiment, n = 2 in the second embodiment) from the line connecting each vertex of the Y connection and the middle point. In order to output at the point where the phase is shifted, it is connected to the second coil of the other phase at a point in the middle of the first coil, either 2u, 2v, 2w Connected to the output terminal of the

Specifically, from the point where the turns ratio of the first coil 14 of the winding unit 11 is “84.52” (= the point whose phase is shifted by 30 degrees from the line connecting each vertex of the Y connection and the middle point), It is connected to the 2nd coil 17 of winding part 12, and is connected to output terminal 2v. In addition, the winding portion 13 is the point at which the turns ratio of the first coil 16 of the winding portion 12 is “84.52” (= a point 30 degrees out of phase from the line connecting each vertex of the Y connection and the middle point) The second coil 19 is connected to the output terminal 2w. In addition, from the point where the turns ratio of the first coil 18 of the winding unit 13 is “84.52” (= the point at which the phase is shifted by 30 degrees from the line connecting each vertex of the Y connection and the middle point) The second coil 15 is connected to the output terminal 2u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter D, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter D will be described. When the three-phase AC voltage is input, the phase number converter D converts it into a six-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

In addition, the voltages output from the output terminals 2u, 2v and 2w are output at a point shifted in phase by 30 degrees from the line connecting each vertex of the Y connection and the middle point, and the phase from the middle point The output is from the output terminals 2u, 2v, 2w, respectively, since the coil ratio is set so as to be the same as the voltage (= voltages input to the input terminals R, S, T). The voltage value to be output is substantially the same as the voltage value input from any one of the input terminals R, S, and T.

Next, using FIG. 8, the voltages output from the output terminals 2 u, 2 v, 2 w of the phase number converter D are each 30 degrees in phase from the line connecting each vertex of the Y connection and the middle point It is assumed that the output is made at a point shifted toward the head, and the voltage values respectively output from the output terminals 2 u, 2 v, 2 w become the same as the voltage values input from any of the input terminals R, S, T The method of designing the phase number converter D will be described.

As described above, in the second embodiment, the phase voltage from the middle point is assumed to be 200 (V). Therefore, the value from “R · 1 u”, “S · 1 v”, or “T · 1 w” to the middle point is the same 200. Accordingly, the turns ratio of the first coils 14, 16 and 18 of the phase number converter D is determined to be "200".

Next, the phase is shifted by 30 degrees from each line connecting the middle point and the Y connection vertex, and points are extended from the middle point to the turns ratio "200".

Specifically, the point shifted 30 degrees from the line connecting the middle point and “T · 1 w” and extended to the turns ratio “200” becomes “2 u”. In addition, the point 30 degrees out of phase from the line connecting the middle point and “R · 1 u”, and the point extended to the turns ratio “200” becomes “2 v”. Furthermore, the point shifted 30 degrees from the line connecting the middle point and “S · 1v” and extended to the turns ratio “200” becomes “2w”.

Then, the vector V11 is extended from the point "2 u" in parallel with the vector connecting the middle point and "R 1 u" to above the vector connecting "T 1 w" and the middle point. Also, the vector V12 is extended from the point "2 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 u" and the middle point. Furthermore, the vector V13 is extended from the point "2w" in parallel with the vector connecting the middle point and "T. 1w" to the vector connecting "S. 1v" and the middle point.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 18 and the second coil 15 of the phase number converter D and the second coil 15 of the phase number converter D is calculated.

Further, the angle between the vector connecting the middle point and “R · 1 u” and the vector connecting the middle point and “T · 1 w” is “120 °” (= 360 ° / 3). Therefore, "the point of intersection between the vector V11 and the vector connecting" T. 1w "and the middle point", "2u", and "the vector V11 of the triangle having" the middle point "as the vertex and" T. 1w " The interior angle according to the intersection with the vector connecting the middle points is “120 °”. Moreover, since the inside angle which concerns on the "middle point" of the same triangle is "30 degrees", the inside angle which concerns on "2u" is "30 degrees" (= 180 degrees-120 degrees-30 degrees). Therefore, in the same triangle, the value of the side connecting “2 V” and “the point of intersection of the vector V11 and the vector connecting“ T · 1 w ”and the middle point” and “2 u”, and “the vector V11 and“ T · 1 w ” It is an isosceles triangle in which the value of the side connecting "intersection point with vector connecting points" and the "middle point" is equal.

By the way, a vertical line falling from the middle point of the side connecting the “middle point” and “2u” (= “the point at which the vector V11 intersects the vector connecting“ T · 1w ”and the middle point”) collides, “2u” Since the phase voltage is "200", the value from "a point on the side connecting the" middle point "and" middle point "to" middle point "or" 2u "on the left and right is" 100 ". Then, the value S from the middle point to "the point of intersection of the vector V11 and the vector connecting" T · 1w "and the middle point" is "S = 115.4700538" according to the equation "100 / S = cos30 °". Is derived. As a result, the value of the vector V11 (“the point at which the point at which the vector V11 intersects“ T · 1w and the vector connecting the middle point ”and“ 2u ”) is also“ 115.4700538 ”. In addition, the value from “the point of intersection of the vector V11 and the vector connecting“ T · 1w ”and the middle point” to “T · 1w” is “84.299462” from the formula “200−15.4700538”. And derived.

From the above results, the point "84.52" of the first coil 18 of the phase number converter D is connected to the second coil 15, and the turns ratio of the second coil 15 of the phase number converter D is "115 .47 ".

The structures of the first coil 18 and the second coil 15 of the phase number converter D and the structures of the other first coils and the second coil of the phase number converter D are the same. Therefore, the point "84.52" of the first coil 14 of the phase number converter D is connected to the second coil 17, and the turns ratio of the second coil 17 of the phase number converter D is "115.47". , And is connected to the second coil 15 from the point "84.52" of the first coil 18 of the phase number converter D, and the turns ratio of the second coil 15 of the phase number converter D is "115. 47 ".

<Modification 3>
In Embodiment 2 of the present embodiment, the configuration of the phase number converter D is shown, which converts alternating voltages input in three phases into six-phase alternating voltages and outputs the voltage. However, the present invention is not limited to this configuration. For example, as shown in FIG. 9, it is good also as composition of phase number converter E which changes into three-phase alternating current voltage, and outputs it, as a three-phase alternating current voltage.

FIG. 9 is a conceptual block diagram of a phase number converter E which converts AC voltages input in three phases into AC voltages of nine phases and outputs the AC voltage.

The number-of-phases converter E is provided with an iron core (not shown) having windings wound thereon and having winding portions 61 to 63 magnetically connected to each other.

The first coil 64, the second coil 65, and the third coil 66 are wound around the winding portion 61. The first coil 67, the second coil 68, and the third coil 69 are wound around the winding portion 62. The first coil 70, the second coil 71, and the third coil 72 are wound around the winding portion 63. In addition, the turns ratio of the first coils 64, 67 and 70, the second coils 65, 68 and 71, and the third coils 66, 69, 72 is "200", "78.98", "78.98". It is.

The primary side of the phase number converter E is provided with three input terminals of R, S and T, and the secondary side has 1u, 1v, 1w, 2u, 2v, 2w, 3u, 3v, There are 9 output terminals of 3w. That is, the phase number converter E converts the input three-phase AC voltage into a nine-phase AC voltage and outputs it.

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection. The middle point of the Y connection is grounded (= potential 0).

Then, six lines going to the secondary side are 20 ("60 / n" from the line connecting each vertex of the Y connection and the middle point, and n = 3 in the third modification). Three-phase input In order to output at a phase that is out of phase, so that it is connected to the second coil of another phase at a point halfway in the first coil, and the third coil of the other phase And 2 u, 2 v, 2 w, 3 u, 3 v, 3 w output terminals.

Specifically, the winding portion 61 is connected to the third coil 69 of the winding portion 62 from the point where the turns ratio of the first coil 64 of the winding portion 61 is "51.55" and is connected to the output terminal 2v, and the winding portion It is connected to the 63 second coil 71 and connected to the output terminal 3w. In addition, the winding ratio of the first coil 67 of the winding unit 62 is connected to the third coil 72 of the winding unit 63 from the point of “51.55” and connected to the output terminal 2 w. It is connected to the two coils 65 and connected to the output terminal 3u. Further, the winding ratio of the first coil 70 of the winding unit 63 is connected to the second coil 68 of the winding unit 62 from the point of “51.55”, and is connected to the output terminal 3v. It is connected to the 3-coil 66 and connected to the output terminal 2u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter E, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter E will be described. When the three-phase AC voltage is input, the phase number converter E converts it into a nine-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

Further, the voltages output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w are output at a point shifted in phase by 20 degrees from the line connecting each vertex of the Y connection and the middle point, and Since the output is made through a coil whose turns ratio is set to be the same as the phase voltage from the middle point (= voltage input from input terminals R, S, T), the output terminal 2u, The voltage values output from 2v, 2w, 3u, 3v, 3w, respectively, are substantially the same as the voltage values input from any of the input terminals R, S, T.

Next, referring to FIG. 10, voltages output respectively from the output terminals 2u, 2v, 2w, 3u, 3v and 3w of the phase number converter E are from the line connecting each vertex of the Y connection and the middle point It is assumed that the signal is output at a point shifted in phase by 20 degrees, and the voltage value output from each of the output terminals 2u, 2v, 2w, 3u, 3v, 3w is input from any of the input terminals R, S, T The design method of the phase number converter E to be the same as the specified voltage value will be described.

As described above, in the second embodiment, the phase voltage from the middle point is assumed to be 200 (V). Therefore, the value from “R · 1 u”, “S · 1 v”, or “T · 1 w” to the middle point is the same 200. Therefore, the turns ratio of the first coils 64, 67, 70 of the phase number converter E is determined to be "200".

Next, the 20-degree phase is shifted in one direction and the other direction from each line connecting the middle point and the vertex of the Y connection, and the point is extended to the turns ratio “200” from the middle point.

Specifically, the point obtained by shifting the phase by 20 degrees in one direction from the line connecting the middle point and “T · 1 w” and extending to the turns ratio “200” is “2 u”. In addition, the point obtained by shifting the phase by 20 degrees in the other direction from the line connecting the middle point and “T · 1w” to the turn ratio “200” is “3 v”. In addition, the point obtained by shifting the phase by 20 degrees in one direction from the line connecting the middle point and “R · 1 u” and extending it to the turns ratio “200” is “2 v”. In addition, the point obtained by shifting the phase by 20 degrees in the other direction from the line connecting the middle point and “R · 1 u” to the turn ratio “200” is “3 w”. Furthermore, the point obtained by shifting the phase by 20 degrees in one direction from the line connecting the middle point and “S · 1 v” and extending to the turns ratio “200” becomes “2 w”. In addition, the point obtained by shifting the phase by 20 degrees in the other direction from the line connecting the middle point and “S · 1 v” and extending to the turns ratio “200” is “3 u”.

Then, the vector V14 is extended from the point "2 u" in parallel with the vector connecting the middle point and "R 1 u" to the vector connecting "T 1 w" and the middle point. In addition, the vector V15 is extended from the point "3 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "T 1 w" and the middle point. Further, the vector V16 is extended from the point "2 v" in parallel with the vector connecting the middle point and "S 1 v" to above the vector connecting "R 1 u" and the middle point. Further, the vector V17 is extended from the point "3 w" in parallel with the vector connecting the middle point and "T 1 w" to the vector connecting "R 1 u" and the middle point. Further, the vector V18 is extended from the point "2w" in parallel with the vector connecting the middle point and "T.1w" to the vector connecting "S.1v" and the middle point. Also, the vector V19 is extended from the point "3u" in parallel with the vector connecting the middle point and "R · 1u" to the vector connecting "S · 1v" and the middle point.

Hereinafter, for convenience of explanation, the turns ratio of the connection point of the first coil 70 and the third coil 66 of the phase number converter E and the third coil 66 of the phase number converter E is calculated.

The angle between the vector connecting the middle point and “R · 1u” and the vector connecting the middle point and “T · 1w” is “120 °” (= 360 ° / 3). Therefore, “intersection point of vector V14 and vector connecting“ T · 1w ”and middle point”, “2u”, triangle “vector V14 with“ middle point ”as vertex, and“ T · 1w ” The inner angle according to the point of intersection of the vectors connecting the control points is “120 °”. Moreover, since the inside angle which concerns on the "middle point" of the same triangle is "20 degrees", the inside angle which concerns on "2u" is "40 degrees" (= 180 degrees-120 degrees-20 degrees).

By the way, triangles whose vertices are "3v", "2u" and "middle point" are the value of the side connecting "3v" and "middle point", and the side connecting "2u" and "middle point" It is an isosceles triangle with equal values of. Therefore, if a vertical line is lowered from the "middle point" to the side connecting "3v" and "2u", the points where the vertical line collides with the side connecting "3v" and "2u" are "3v" and "2u" It becomes the "midpoint" of the side connecting. Then, the value T from the “middle point” to the “midpoint” is derived as “T = 187.9385241” from the equation “T / 200 = cos 20 °”. Also, the value U from “midpoint” to “2u” is derived as “U = 68.40402866” from the equation “U / 200 = sin 20 °”.

In addition, a triangle “vector V14 with a vertex“ 2u ”,“ T · 1w ”and a middle with“ middle point ”,“ an intersection point of vector V14 and a vector connecting “T · 1w” and a middle point ”, and“ 2u ” The internal angle according to the point of intersection of the vectors connecting the points is “60 °” (180 ° -120 °). Therefore, the interior angle according to "2u" of the triangle is "30 °".

Then, the value V of the side connecting “2u” and “the point of intersection of the vector V14 and the vector connecting“ T · 1w ”and the middle point” of the same triangle and “2u” is given by the equation “68.40402866 / V = cos 30 ° , “V = 78.98616872” is derived. In addition, the value W of the side connecting the “middle point” and “the point of intersection of the vector V14 and the vector connecting“ T · 1w ”and the middle point” of the same triangle is the formula “W / 68.40402866 = tan 30 °” From this, it is derived that "W = 39.49308436". Also, the value from the middle point to “the point of intersection of the vector V14 and the vector connecting“ T · 1w ”and the middle point” is “148.4454397” according to the formula of “187.9385241 to 39.49308436”. Become. Further, the value of “T · 1w” from the middle point is “12.06147594” according to the formula of “200-144.4454397-39.49308436”.

According to the above results, the third coil 66 is connected from the point of “51.55” (= 39.49308436 + 12.06594) of the first coil 70 of the phase number converter E, and the third phase number converter E The turns ratio of the three coils 66 is determined as "78.98".

The structures of the first coil 70 and the third coil 66 of the phase number converter E and the structures of the other first coil, second coil and third coil of the phase number converter E are similar. Therefore, it is determined that the point “51.55” of the first coil 70 of the phase number converter E is connected to the second coil 68, and the turns ratio of the second coil 68 is determined as “78.98”. Ru. In addition, the number of turns of the third coil 69 and the second coil 71 is connected to the third coil 69 while being connected to the third coil 69 from the point “51.55” of the first coil 64 of the phase number converter E. The ratio is determined to be "78.98". Furthermore, the number of turns of the third coil 72 and the second coil 65 is connected to the third coil 72 while being connected to the third coil 72 from the point “51.55” of the first coil 67 of the phase number converter E. The ratio is determined to be "78.98".

<Modification 4>
Further, for example, as shown in FIG. 11, the phase number converter F may be configured to convert the AC voltage input in three phases into a 12-phase AC voltage and output it.

FIG. 11 is a conceptual configuration diagram of a phase number converter F that converts alternating voltage input in three phases into alternating voltage of 12 phases and outputs the same.

The number-of-phases converter F is provided with iron cores (not shown) having windings wound thereon and having winding portions 81 to 83 magnetically connected to each other.

A first coil 84, a second coil 85, a third coil 86, and a fourth coil 87 are wound around the winding portion 81. The first coil 88, the second coil 89, the third coil 90, and the fourth coil 91 are wound around the winding portion 82. The first coil 92, the second coil 93, the third coil 94, and the fourth coil 95 are wound around the winding portion 83. Further, the turns ratio of the first coil 84, 88 and 92, the second coil 85, 89 and 93, the third coil 86, 90 and 94, and the fourth coil 87, 91 and 95 is "200", " 163. 29 "," 115. 47 "," 59. 77 ".

The primary side of the phase number converter F is provided with three input terminals of R, S and T, and the secondary side has 1u, 1v, 1w, 2u, 2v, 2w, 3u, 3v, There are 12 output terminals of 3w, 4u, 4v and 4w. That is, the phase number converter F converts the input three-phase AC voltage into a 12-phase AC voltage and outputs it.

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection. The middle point of the Y connection is grounded (= potential 0).

The nine lines directed to the secondary side are 15 ("60 / n" from the line connecting each vertex of the Y connection and the middle point, and n = 4 in the first embodiment). In order to output at a point where the phase is shifted by 30 degrees (= 15 degrees x 2) or 45 degrees (15 degrees x 3) degrees, the middle of the first coil is output. The point is connected to the second phase coil, the third phase coil or the fourth phase coil of another phase and is connected to the output terminal of 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w .

Specifically, it is connected to the fourth coil 91 of the winding portion 82 from the point where the turns ratio of the first coil 84 of the winding portion 81 is "36.70", and is connected to the output terminal 2v. The third coil 90 of the winding unit 82 is connected to the output terminal 3v from the point where the turns ratio of the first coil 84 of the winding unit 81 is "84.52". Further, from the point at which the turns ratio of the first coil 84 of the winding portion 81 is "140.22", it is connected to the second coil 89 of the winding portion 82 and is connected to the output terminal 4v.

In addition, the point where the turns ratio of the first coil 88 of the winding portion 82 is “36.70” is connected to the fourth coil 95 of the winding portion 83, and is connected to the output terminal 2w. The third coil 94 of the winding unit 83 is connected to the output terminal 3w from the point where the turns ratio of the first coil 88 of the winding unit 82 is "84.52". Further, from the point where the turns ratio of the first coil 88 of the winding portion 82 is "140.22", the second coil 93 of the winding portion 83 is connected to the output terminal 4w.

In addition, the point where the turns ratio of the first coil 92 of the winding portion 83 is “36.70” is connected to the fourth coil 87 of the winding portion 81 and is connected to the output terminal 2 u. The third coil 86 of the winding unit 81 is connected to the output terminal 3 u from the point where the turns ratio of the first coil 92 of the winding unit 83 is “84.52”. In addition, the winding ratio of the first coil 92 of the winding unit 83 is connected to the second coil 85 of the winding unit 81 from the point of “140.22” and is connected to the output terminal 4 u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter F, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter F will be described. When the three-phase AC voltage is input, the phase number converter F converts it into a 12-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

The voltages output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w are respectively 15 degrees, 30 degrees, or from the line connecting each vertex of the Y connection and the middle point It is output at a point that is 45 degrees out of phase, and passes through a coil whose turns ratio is set to be the same as the phase voltage from the middle point (= voltage input from input terminals R, S, and T). Therefore, voltage values respectively output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w are input from any of the input terminals R, S and T. It is almost the same as the voltage value.

Next, referring to FIG. 12, the voltages outputted from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w of the phase number converter F are represented by each vertex of the Y connection and the middle It is assumed that the signal is output at a point shifted by 15 degrees, 30 degrees or 45 degrees from the line connecting the points, and from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w respectively A design method of the phase number converter F in which the output voltage value is the same as the voltage value input from any one of the input terminals R, S, and T will be described.

As described above, in the second embodiment, the phase voltage from the middle point is assumed to be 200 (V). Therefore, the value from “R · 1 u”, “S · 1 v”, or “T · 1 w” to the middle point is the same 200. Therefore, the turns ratio of the first coils 84, 88, 92 of the phase number converter F is determined to be "200".

Next, shift the phase by 15 degrees, 30 degrees, or 45 degrees from each line connecting the middle point to the Y connection vertex in one direction and point each point extended from the middle point to the turns ratio “200” .

Specifically, the point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “T · 1w” to the turn ratio “200” is “2u”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “T · 1 w” to the turns ratio “200” is “3 u”. The point obtained by shifting the phase by 45 degrees in one direction from the line connecting the middle point and “T · 1w” to the turns ratio “200” becomes “4u”. In addition, a point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “R · 1 u” and extending to a turns ratio of “200” is “2 v”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “R · 1 u” to the turns ratio “200” is “3 v”. In addition, the point obtained by shifting the phase by 45 degrees in one direction from the line connecting the middle point and “R · 1 u” and extending to the turns ratio “200” becomes “4 v”. Furthermore, the point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “S · 1v” to the turns ratio “200” is “2w”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “S · 1v” to the turns ratio “200” is “3w”. In addition, the point obtained by shifting the phase by 45 degrees in one direction from the line connecting the middle point and “S · 1v” to the turns ratio “200” is “4w”.

Then, the vector V20 is extended from the point "2 u" in parallel with the vector connecting the middle point and "R 1 u" to the vector connecting "T 1 w" and the middle point. Further, the vector V21 is extended from the point "3u" in parallel with the vector connecting the middle point and "R · 1u" to above the vector connecting "T · 1w" and the middle point. Also, the vector V22 is extended from the point "4u" in parallel with the vector connecting the middle point and "R 1u" to above the vector connecting "T 1w" and the middle point.

Further, the vector V23 is extended from the point "2 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 w" and the middle point. Further, the vector V24 is extended from the point "3 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 u" and the middle point. Further, the vector V25 is extended from the point "4 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 u" and the middle point.

Furthermore, the vector V26 is extended from the point "2 w" in parallel with the vector connecting the middle point and "T 1 w" to the vector connecting "S 1 v" and the middle point. Further, the vector V27 is extended from the point "3 w" in parallel with the vector connecting the middle point and "T 1 w" to the vector connecting "S 1 v" and the middle point. Further, the vector V28 is extended from the point "4w" in parallel with the vector connecting the middle point and "T. 1w" to the vector connecting "S.1v" and the middle point.

Hereinafter, for convenience of explanation, the connection ratio of the first coil 92 and the fourth coil 87 of the phase number converter F, and the turns ratio of the fourth coil 87, and the first coil 92 and the third coil of the phase number converter F. The connection point of the coil 86, the turns ratio of the third coil 86, and the connection point of the first coil 92 and the second coil 85 of the phase number converter F, and the turn ratio of the second coil 85 are calculated.

A triangle whose apex is "T · 1w", "middle point" or "2u" is the side connecting "T · 1w" and "middle point", and the side connecting "middle point" and "2u" The value of is equal to "200", which is an isosceles triangle. Therefore, the triangle is divided into two right triangles (not shown) by making a vertical line from the middle point to the side connecting “T · 1w” and “2u”. The intersection of the perpendicular and the side connecting “T · 1w” and “2u” is the middle point of the side connecting “T · 1w” and “2u”.

Then, the value Y of the side connecting the “midpoint” of the triangle having “midpoint”, “middle point”, “T · 1w” or “2u” and “T · 1w” or “2u” is From the equation “sin 7.5 ° = Y / 200”, “Y = 26.10523844” is derived, and the value of the side connecting “T · 1w” and “2u” is “52.21047689”.

Next, a horizontal line H1 is drawn from the point "T · 1w" to the vector V22. The horizontal line H1 is shown by a dotted line in FIG.

Further, the angle between the vector connecting the middle point and “R · 1 u” and the vector connecting the middle point and “T · 1 w” is “120 °” (= 360 ° / 3). Therefore, a triangle “vector V20” having a vertex “vector V20 and a vector that connects“ T · 1w ”and a middle point”, “T · 1w”, “a point at which vector V20 and horizontal line H1 intersect” The internal angle according to “the point of intersection of the vector connecting“ T · 1 w ”and the middle point” is “60 °” (= 180 ° -120 °). Moreover, the internal angle which concerns on "T * 1w" of the same triangle is "30 degrees" (= 180 degrees-60 degrees-90 degrees).

By the way, triangles whose vertices are "T. 1w", "middle point" and "2 u" are isosceles triangles as described above, and the inner angle relating to "middle point" of the triangle is "15". Since it is degree, the interior angle which concerns on "T * 1w" is "82.5 degrees" (= (180 degrees-15 degrees) / 2). Therefore, the internal angle associated with "T. 1w", "the intersection of the vector V 20 and the horizontal line H 1", and "T. 1w" of the triangle having "2u" as the apex is "52.5 °" (= 82.5 ° It becomes -30 degrees.

The value Z of the side connecting “T · 1w” and “the intersection of the vector V20 and the horizontal line H1” of the triangle having “T · 1w”, “the intersection of the vector V20 and the horizontal line H1”, and “2u” is As described above, the value of the side connecting “T · 1w” and “2u” is “52.21047689”, according to the formula “cos 52.5 ° = Z / 52.21047689”, “Z = 31.78372452 Is derived. Further, the value AA of the side connecting “2u” of the same triangle and “the point of intersection of the vector V20 and the horizontal line H1” is “AA = 41.42135624” according to the formula “sin 52.5 ° = AA / 52.21047689” And derived.

Next, “T · 1w” of a triangle having “T · 1w”, “intersection point of vector V20 and vector connecting“ T · 1w ”and middle point”, and “intersection point of vector V20 and horizontal line H1” The value BB of the side connecting “the vector V20 and the vector intersection point connecting“ T · 1w ”and the middle point” is “BB = 36.70068381” according to the equation “cos 30 ° = 31.78372452 / BB”. Is derived. In addition, the value CC of the side connecting “the intersection of the vector V20 and the vector connecting“ T · 1w ”and the middle point” and “the intersection of the vector V20 and the horizontal line H1” of the same triangle is “tan 30 ° = CC / From the equation of 31.78372452 ", it is derived as" CC = 18.35034191 ".

Therefore, the value of the side connecting “2u” and “the point of intersection of the vector V20 and the vector connecting“ T · 1w ”and the middle point” and “2u” is “59.77169815” according to the formula “41.2135624 + 18.35034191”. Is derived. That is, the connection point of the first coil 92 and the fourth coil 87 of the phase number converter F is determined to be "36.70", and the turns ratio of the fourth coil 87 is determined to be "59.77".

Next, triangles whose vertices are "T · 1w", "middle point" and "3u" are the side connecting "T · 1w" and "middle point", and "middle point" and "3u" The value of the side connecting is an isosceles triangle equal to "200". Therefore, the triangle is divided into two right triangles by making a vertical line from the middle point to the side connecting "T · 1w" and "3u". The intersection of the perpendicular and the side connecting “T · 1w” and “3u” is the middle point of the side connecting “T · 1w” and “3u”.

Then, the value DD of the side connecting the “midpoint” of the triangle having “midpoint”, “middle point”, “T · 1w” or “3u” as the vertex and “T · 1w” or “3u” is From the equation “sin 15 ° = DD / 200”, “DD = 51.76380902” is derived, and the value of the side connecting “T · 1w” and “3u” is “103.527618”.

Further, the angle between the vector connecting the middle point and “R · 1 u” and the vector connecting the middle point and “T · 1 w” is “120 °” (= 360 ° / 3). Therefore, a triangle “vector V21” having a vertex “vector V21 intersects the vector connecting“ T · 1w ”and the middle point”, “T · 1w”, “point of intersection of vector V21 and horizontal line H1”, The internal angle according to “the point of intersection of the vector connecting“ T · 1 w ”and the middle point” is “60 °” (= 180 ° -120 °). Moreover, the internal angle which concerns on "T * 1w" of the same triangle is "30 degrees" (= 180 degrees-60 degrees-90 degrees).

By the way, triangles whose apexes are “T · 1w”, “middle point” and “3u” are isosceles triangles as described above, and the interior angle relating to “middle point” is “30 °”. For this reason, the internal angle related to “T · 1w” is “75 °” (= (180 ° −30 °) / 2). Therefore, the internal angle related to "T. 1w" of the triangle having "T. 1w", "the intersection of the vector V 21 and the horizontal line H 1", and "3u" as "45.degree." (= 75.degree.-30.degree.) It becomes.

The value EE of the side connecting “T · 1w” and “the intersection of the vector V21 and the horizontal line H1” of a triangle having “T · 1w”, “the intersection of the vector V21 and the horizontal line H1”, and “3 u” As described above, the value of the side connecting “T · 1w” and “3u” is “103.527618”, and from the formula “cos 45 ° = EE / 103.527618”, “EE = 73.20508073” It is derived. In addition, the value FF of the side connecting "3u" of the same triangle and "the intersection of the vector V20 and the horizontal line H1" is derived as "FF = 73.20508073" from the equation "sin 45 ° = FF / 103.527618" Be done.

Next, “T · 1w” of a triangle having “T · 1w”, “intersection point of vector V21 and vector connecting“ T · 1w ”and middle point”, and “intersection point of vector V21 and horizontal line H1” The value GG of the side connecting “the point at which the vector V21 and the vector connecting“ T · 1w ”and the middle point are connected” is “GG = 84.52994613” according to the formula “cos 30 ° = 73.20508073 / GG”. Is derived. Further, the value HH of the side connecting “the intersection point of the vector V21 and the vector connecting“ T · 1w ”and the middle point” with the triangle “the intersection point of the vector V21 and the horizontal line H1” is “tan 30 ° = HH / "HH = 42.26497307" is derived from the equation of 73.2058073 ".

Therefore, the value of the side connecting “3. V” and “the point of intersection of the vector V21 and the vector connecting“ T · 1w ”and the middle point” and “3 u” is “115.4700538” according to the formula “73.20508073 + 42.264.97307”. Is derived. That is, the connection point of the first coil 92 and the third coil 86 of the phase number converter F is determined to be "84.52", and the turns ratio of the third coil 86 is determined to be "115.47".

Next, triangles whose vertices are "T. 1w", "middle point" and "4u" are the side connecting "T. 1w" and "middle point", "middle point" and "4u" The value of the side connecting is an isosceles triangle equal to "200". Therefore, the triangle is divided into two right triangles (not shown) by making a vertical line from the middle point to the side connecting "T · 1w" and "4u". The intersection of the perpendicular and the side connecting “T · 1w” and “4u” is the middle point of the side connecting “T · 1w” and “4u”.

Then, the value II of the side connecting the “midpoint” of the triangle having “midpoint”, “middle point”, “T · 1w” or “4u” and “T · 1w” or “4u” is From the equation “sin 22.5 ° = II / 200”, “II = 76.53668647” is derived, and the value of the side connecting “T · 1w” and “4u” is “153.0733729”.

Further, the angle between the vector connecting the middle point and “R · 1 u” and the vector connecting the middle point and “T · 1 w” is “120 °” (= 360 ° / 3). Therefore, a triangle “vector V22” having a vertex “the point of intersection of the vector V22 and the vector connecting“ T · 1w ”and the middle point”, “T · 1w”, “the point of intersection of the vector V22 and the horizontal line H1”, The internal angle according to “the point of intersection of the vector connecting“ T · 1 w ”and the middle point” is “60 °” (= 180 ° -120 °). Moreover, the internal angle which concerns on "T * 1w" of the same triangle is "30 degrees" (= 180 degrees-60 degrees-90 degrees).

By the way, triangles whose apexes are “T · 1w”, “middle point” and “4u” are isosceles triangles as described above, and the inner angle relating to “middle point” is “45 °”. For this reason, the internal angle relating to “T · 1w” is “67.5 °” (= (180 ° −45 °) / 2). Therefore, the internal angle related to "T. 1w" of the triangle having "T. 1w", "the intersection point of the vector V 22 and the horizontal line H 1", and "4u" is "37.5 °" (= 67.5 ° It becomes -30 degrees.

The value JJ of the side connecting “T · 1w” and “the intersection of vector V22 and horizontal line H1” of a triangle having “T · 1w”, “intersection of vector V22 and horizontal line H1”, and “4u” is As described above, the value of the side connecting “T · 1w” and “4u” is “153.0733729”, and from the formula “cos 37.5 ° = JJ / 153.0733729”, “JJ = 121.4412717 Is derived. In addition, the value KK of the side connecting “4u” of the same triangle and “the point of intersection of the vector V22 and the horizontal line H1” is “KK = 93.18516523” according to the equation “sin 37.5 ° = KK / 153.0733729” And derived.

Next, “T · 1w” of a triangle having “T · 1w”, “intersection point of vector V22 and“ V · 1w ”and a vector connecting middle point”, and “intersection point of vector V22 and horizontal line H1” The value LL of the side connecting “the point at which the vector V22 and the vector connecting“ T · 1w ”and the middle point” are connected is “LL = 140.2283018” according to the formula “cos 30 ° = 121.4412717 / LL”. Is derived. In addition, the value MM of the side connecting “the intersection of the vector V22 and the vector connecting“ T · 1w ”and the middle point” with “the intersection of the vector V22 and the horizontal line H1” is “tan 30 ° = MM / "MM = 70.11415091" is derived from the formula of 121.4412717 ".

Therefore, according to the equation "93.18516523 + 70.11415091", the value of the side connecting "4.V" with "the point of intersection of the vector V22 and the vector connecting" T.1w "and the middle point" is "163.2993161". Is derived. That is, the connection point of the first coil 92 and the second coil 85 of the phase number converter F is determined as "140.22", and the turns ratio of the second coil 85 is determined as "163.29".

The structure of the first coil 92 and the fourth coil 87 of the phase number converter F, the structure of the first coil 92 and the third coil 86 of the phase number converter F, the first coil 92 and the second coil of the phase number converter F 85, the structure of the first coil 84 and the fourth coil 91 of the phase number converter F, the structure of the first coil 84 and the third coil 90 of the phase number converter F, the first coil of the phase number converter F The structures of the 84 and the second coil 89 are similar.

Therefore, the connection point of the first coil 84 and the fourth coil 91 of the phase number converter F is determined to be "36.70", and the turns ratio of the fourth coil 91 is determined to be "59.77". Further, the connection point of the first coil 84 and the third coil 90 of the phase number converter F is determined to be “84.52”, and the turns ratio of the third coil 90 is determined to be “115.47”. Furthermore, the connection point of the first coil 84 and the second coil 89 of the phase number converter F is determined to be “140.22”, and the turns ratio of the second coil 89 is determined to be “163.29”.

In addition, the structure of the first coil 92 and the fourth coil 87 of the phase number converter F, the structure of the first coil 92 and the third coil 86 of the phase number converter F, the first coil 92 of the phase number converter F, and the The structure of the two coils 85 and the structure of the first coil 88 and the fourth coil 95 of the phase number converter F, the structure of the first coil 88 and the third coil 94 of the phase number converter F, the first of the phase number converter F The structures of the one coil 88 and the second coil 93 are similar.

Therefore, the connection point of the first coil 88 and the fourth coil 95 of the phase number converter F is determined to be "36.70", and the turns ratio of the fourth coil 95 is determined to be "59.77". Further, the connection point of the first coil 88 and the third coil 94 of the phase number converter F is determined to be “84.52”, and the turns ratio of the third coil 94 is determined to be “115.47”. Furthermore, the connection point of the first coil 88 and the second coil 93 of the phase number converter F is determined to be "140.22", and the turns ratio of the second coil 93 is determined to be "163.29".

<Modification 5>
In the fourth modification described above, each phase obtained by shifting the phase by 15 degrees, 30 degrees, or 45 degrees from each line connecting the middle point and the vertex of the Y connection in one direction and extending from the middle point to the turns ratio "200" I showed the configuration to point. However, in the case of a configuration in which only the point shifted in one direction is pointed as described above, the number of turns of the second coil or the like becomes long. So, in the modification 5, it was set as the structure which points not only the point shifted to one direction but the point shifted to the other direction.

FIG. 13 is a conceptual configuration diagram of a phase number converter G that converts alternating voltage input in three phases into alternating voltage of 12 phases and outputs it.

The number-of-phases converter G is provided with iron cores (not shown) each having a winding portion 101-103 wound around and magnetically connected to each other.

The first coil 104, the second coil 105, the third coil 106, and the fourth coil 107 are wound around the winding portion 101. The first coil 108, the second coil 109, the third coil 110, and the fourth coil 111 are wound around the winding portion 102. The first coil 112, the second coil 113, the third coil 114, and the fourth coil 115 are wound around the winding portion 103. Further, the turns ratio of the first coil 104, 108 and 112, the second coil 105, 109 and 113, the third coil 106, 110 and 114, and the fourth coil 107, 111 and 115 is "200", " 115.47 "," 59.77 "," 59.77 ".

The primary side of the phase number converter G is provided with three input terminals of R, S and T, and the secondary side has 1u, 1v, 1w, 2u, 2v, 2w, 3u, 3v, There are 12 output terminals of 3w, 4u, 4v and 4w. That is, the phase number converter G converts the input three-phase AC voltage into a 12-phase AC voltage and outputs it.

Moreover, each line from three input terminals of R, S, and T on the primary side is connected by Y connection. The middle point of the Y connection is grounded (= potential 0).

The nine lines directed to the secondary side are 15 ("60 / n" from the line connecting each vertex of the Y connection and the middle point, and n = 4 in the first embodiment). The second coil of the other phase at the middle point of the first coil in order to output at the point where the phase is shifted by 30 degrees (= 15 degrees × 2) degrees. , Or the third coil or the fourth coil, and is connected to any one of the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w.

Specifically, it is connected to the fourth coil 111 of the winding unit 102 from the point where the turns ratio of the first coil 104 of the winding unit 101 is "36.70", and is connected to the output terminal 2v. In addition, it is connected to the third coil 114 of the winding unit 103 from the point where the turns ratio of the first coil 104 of the winding unit 101 is "36.70", and is connected to the output terminal 3w. Further, from the point at which the turns ratio of the first coil 104 of the winding unit 101 is "84.52", it is connected to the second coil 109 of the winding unit 102, and is connected to the output terminal 4v.

In addition, it is connected to the fourth coil 115 of the winding unit 103 from the point where the turns ratio of the first coil 108 of the winding unit 102 is "36.70", and is connected to the output terminal 2w. The third coil 106 of the winding unit 101 is connected to the output terminal 3 u from the point where the turns ratio of the first coil 108 of the winding unit 102 is “36.70”. In addition, it is connected to the second coil 113 of the winding unit 103 from the point where the turns ratio of the first coil 108 of the winding unit 102 is "84.52", and is connected to the output terminal 4w.

In addition, it is connected to the fourth coil 107 of the winding unit 101 from the point where the turns ratio of the first coil 112 of the winding unit 103 is "36.70", and is connected to the output terminal 2u. The third coil 110 of the winding unit 102 is connected to the output terminal 3v from the point where the turns ratio of the first coil 112 of the winding unit 103 is "36.70". In addition, it is connected to the second coil 105 of the winding unit 101 from the point where the turns ratio of the first coil 112 of the winding unit 103 is "84.52", and is connected to the output terminal 4u.

On the other hand, the remaining three lines toward the secondary side are respectively connected to the lines from the three input terminals of R, S and T, and are connected to one of the output terminals 1u, 1v and 1w. . Therefore, in the phase number converter G, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit.

Next, the operation of the phase number converter G will be described. When the three-phase AC voltage is input, the phase number converter G converts it into a 12-phase AC voltage and outputs it. The voltage output from each of the output terminals 1u, 1v, 1w is output as it is because the voltage input from any one of the input terminals R, S, T is output as it is without passing through any coil. , 1v and 1w, respectively, are substantially the same as the voltage values input from any one of the input terminals R, S and T.

The voltages output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v and 4w are each 15 degrees or 30 degrees from the line connecting each vertex of the Y connection and the middle point Is output at a point where the phase shift is offset, and is output through a coil whose turns ratio is set to be the same as the phase voltage from the middle point (= voltage input from input terminals R, S and T). Voltage values output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w are the voltage values input from any of the input terminals R, S, T. It is almost the same as

Next, referring to FIG. 14, the voltages output from the output terminals 2 u, 2 v, 2 w, 3 u, 3 v, 3 w, 4 u, 4 v, 4 w of the phase number converter G can be respectively It is assumed that the signal is output at a point 15 ° or 30 ° out of phase from the line connecting the points, and is output from the output terminals 2u, 2v, 2w, 3u, 3v, 3w, 4u, 4v, 4w respectively A design method of the phase number converter G in which the voltage value is equal to the voltage value input from any one of the input terminals R, S, and T will be described.

As described above, in the second embodiment, the phase voltage from the middle point is assumed to be 200 (V). Therefore, the value from “R · 1 u”, “S · 1 v”, or “T · 1 w” to the middle point is the same 200. Therefore, the turns ratio of the first coils 104, 108, 112 of the phase number converter G is determined to be "200".

Next, the phase is shifted in one direction by 15 degrees or 30 degrees from each line connecting the middle point and the vertex of the Y connection, and each point is extended to the turns ratio “200” from the middle point. The phase is shifted in the other direction by 15 degrees from each line connecting the middle point and the vertex of the Y connection, and each point is extended to the turns ratio “200” from the middle point.

Specifically, the point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “T · 1w” to the turn ratio “200” is “2u”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “T · 1w” to the turns ratio “200” is “4u”. The point obtained by shifting the phase by 15 degrees in the other direction from the line connecting the middle point and "T 1 w" to the turn ratio "200" becomes "3 v". In addition, a point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “R · 1 u” and extending to a turns ratio of “200” is “2 v”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “R · 1 u” to the turns ratio “200” is “4 v”. Further, the point obtained by shifting the phase by 15 degrees in the other direction from the line connecting the middle point and “R · 1 u” and extending to the turns ratio “200” becomes “3 w”. Furthermore, the point obtained by shifting the phase by 15 degrees in one direction from the line connecting the middle point and “S · 1v” to the turns ratio “200” is “2w”. In addition, the point obtained by shifting the phase by 30 degrees in one direction from the line connecting the middle point and “S · 1v” to the turns ratio “200” is “4w”. Further, a point obtained by shifting the phase by 15 degrees in the other direction from the line connecting the middle point and “S · 1v” and extending to the turns ratio “200” becomes “3u”.

Then, the vector V29 is extended from the point "2 u" in parallel with the vector connecting the middle point and "R 1 u" to the vector connecting "T 1 w" and the middle point. Also, the vector V30 is extended from the point "4u" in parallel with the vector connecting the middle point and "R · 1u" to above the vector connecting "T · 1w" and the middle point. Further, the vector V31 is extended from the point "3 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "T 1 w" and the middle point.

In addition, the vector V32 is extended from the point "2 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 w" and the middle point. Further, the vector V33 is extended from the point "4 v" in parallel with the vector connecting the middle point and "S 1 v" to the vector connecting "R 1 u" and the middle point. Further, the vector V34 is extended from the point "3 w" in parallel with the vector connecting the middle point and "T 1 w" to the vector connecting "R 1 u" and the middle point.

Further, the vector V35 is extended from the point "2w" in parallel with the vector connecting the middle point and "T. 1w" to the vector connecting "S. 1v" and the middle point. Further, the vector V36 is extended from the point "4 w" in parallel with the vector connecting the middle point and "T 1 w" to the vector connecting "S 1 v" and the middle point. Further, the vector V37 is extended from the point "3u" in parallel with the vector connecting the middle point and "R 1u" to the vector connecting "S 1v" and the middle point.

In addition, the method for determining the connection point between the first coil 112 and the second coil 105 of the phase number converter G and the turns ratio of the second coil 105 is the same as the first method of the phase number converter F according to the fourth modification described above. The method for determining the connection point between the coil 92 and the third coil 86 and the turns ratio of the third coil 86 is the same as that described above, and thus the description thereof is omitted. Regarding the connection point of the first coil 112 and the fourth coil 107 of the phase number converter G, and the method of determining the turns ratio of the fourth coil 107, the first coil 92 of the phase number converter F according to the modification 4 described above. The method is the same as the method for determining the connection point of the fourth coil 87 and the turns ratio of the fourth coil 87, so the description will be omitted.

Therefore, the connection point between the first coil 112 and the second coil 105 of the phase number converter G is determined to be "84.52", and the turns ratio of the second coil 105 is determined to be "115.47". The connection point of the first coil 112 and the fourth coil 107 of the phase number converter G is determined as "36.70", and the turns ratio of the fourth coil 107 is determined as "59.77".

Further, with regard to the method of determining the connection point between the first coil 112 and the third coil 110 of the phase number converter G and the turns ratio of the third coil 110, the first method of the phase number converter F according to the modification 4 described above The connection point between the coil 92 and the fourth coil 87 and the method of determining the turns ratio of the fourth coil 87 will not be described.

Therefore, the connection point between the first coil 112 and the third coil 110 of the phase number converter G is determined to be "36.70", and the turns ratio of the third coil 110 is determined to be "59.77".

The structure of the first coil 104 and the second coil 109 of the phase number converter G, the structure of the first coil 104 and the fourth coil 111, and the structure of the first coil 104 and the third coil 114 are the phase number converter. The structures of the first coil 112 and the second coil 105 of G, the structures of the first coil 112 and the fourth coil 107, and the structures of the first coil 112 and the third coil 110 are the same.

Therefore, the connection point between the first coil 104 and the second coil 109 of the phase number converter G is determined to be "84.52", and the turns ratio of the second coil 109 is determined to be "115.47". The connection point of the first coil 104 and the fourth coil 111 of the phase number converter G is determined to be "36.70", and the turns ratio of the fourth coil 111 is determined to be "59.77". Further, the connection point of the first coil 104 and the third coil 114 of the phase number converter G is determined to be “36.70”, and the turns ratio of the third coil 114 is determined to be “59.77”.

The structure of the first coil 108 and the second coil 113 of the phase number converter G, the structure of the first coil 108 and the fourth coil 115, and the structure of the first coil 108 and the third coil 106 are the phase number converter. The structures of the first coil 112 and the second coil 105 of G, the structures of the first coil 112 and the fourth coil 107, and the structures of the first coil 112 and the third coil 110 are the same.

Therefore, the connection point of the first coil 108 and the second coil 113 of the phase number converter G is determined as “84.52”, and the turns ratio of the second coil 113 is determined as “115.47”. The connection point of the first coil 108 and the fourth coil 115 of the phase number converter G is determined as "36.70", and the turns ratio of the fourth coil 115 is determined as "59.77". Further, the connection point of the first coil 108 and the third coil 106 of the phase number converter G is determined to be “36.70”, and the turns ratio of the third coil 106 is determined to be “59.77”.

<Other Modifications>
In Embodiment 1, Embodiment 2, and Modifications 1 to 5 described above, the input on the primary side and the output on the secondary side are electrically connected in an electrical circuit, and from the primary side Although the input voltage and the voltage output from the secondary side are almost the same, only the number of phases is converted, but the present invention is not limited to this configuration. For example, in a configuration in which the input on the primary side and the output on the secondary side are not electrically connected, the turns ratio of the coil on the primary side is increased or decreased with respect to the turns ratio of the first coil on the secondary side. It also becomes possible to transform.

For example, FIG. 15 is a conceptual block diagram of a phase number converter H which converts AC voltages input in three phases into AC voltages of nine phases and outputs them. In the phase number converter H, the first coil 120 is wound around the winding portion 21 as the primary side coil, the first coil 121 is wound around the winding portion 22, and the first coil 122 is wound around the winding portion 23. Is wound. The turns ratio of the first coils 120 to 122 is "400.00".

On the other hand, in the phase number converter H, as the secondary side coil, the first coil 24, the second coil 25, and the third coil 26 are wound around the winding portion 21 as in the phase number converter B described above. There is. Further, the first coil 27, the second coil 28, and the third coil 29 are wound around the winding portion 22. The first coil 30, the second coil 31, and the third coil 32 are wound around the winding portion 23.

That is, in the number-of-phases converter H, the turns ratio of the first coils 120 to 122, which are the coils on the primary side, is “400.00”, and the phase between secondary phases (= wound around the winding portion 21) Since the inter-line voltage of the coil, the coil wound around the winding portion 22, and the coil between the coils wound around the winding portion 23 is "200" and about "2: 1", R, S on the primary side The voltages input from the input terminals of T. and T are transformed to about [1/2] when output from the output terminals of 1 u, 1 v, 1 w, 2 u, 2 v, 2 w, 3 u, 3 v, 3 w.

Further, in the above-described phase number converters A to H, the number of turns of the first coil, the second coil, etc. is indicated by the "turns ratio" instead of the number of times the coil is actually wound. Therefore, if the turns ratio of the first coil and the second coil etc. does not change, there is no problem even if the number of times of winding the coil is doubled or halved, for example, and the same effect can be obtained. it can.

In addition, although a plurality of coils such as the first coil and the second coil are wound in the winding parts of the phase number converters A to H described above, in the case of winding another coil on the coil, for example, an insulating sheet Needless to say, the coils are insulated by And as for the order which winds each coil around a winding part, after winding a 1st coil, the composition which winds a 2nd coil etc. is desirable. Moreover, the order which winds the 2nd coil etc. after winding a 1st coil is random order. That is, after winding the first coil, winding may be performed in the order of the second coil, the third coil, etc., or after winding the first coil, winding may be performed in the order of the third coil, the second coil, etc. . The phase number converter H preferably has a configuration in which the first coil 120 or the like that is the primary side coil is wound around the winding portion 21 or the like, and then the first coil 24 or the like that is the secondary side coil is wound.

A to H: phase number converter, C1 to C3: intersection, C41 to C43: intersection, H1: horizontal line,
V1 to V9: vector, V11 to V37: vector, V41 to V49: vector,
1 to 3: winding portion, 4, 6, 8: first coil, 5, 7, 9: second coil,
11 to 13: winding portion 14, 16, 18: first coil, 15, 17, 19: second coil,
21 to 23: winding portion 24, 27, 30: first coil 25, 28, 31: second coil 26, 29, 32: third coil,
41 to 43: winding portion, 44, 48, 52: first coil, 45, 49, 53: second coil, 46, 50, 54: third coil, 47, 51, 55: fourth coil,
61 to 63: winding portion, 64, 67, 70: first coil, 65, 68, 71: second coil, 66, 69, 72: third coil,
81 to 83: winding portion, 84, 88, 92: first coil, 85, 89, 93: second coil, 86, 90, 94: third coil, 87, 91, 95: fourth coil,
101 to 103: winding portion, 104, 108, 112: first coil, 105, 109. 113: second coil, 106, 110, 114: third coil, 107, 111, 115: fourth coil,
120 to 122: first coil

Claims (4)

The input three-phase AC voltage is output from a point at which the phase does not change, and is out of phase by (60 / n) degrees from the line connecting the vertices of the Y connection, and the phase between the lines indicated by the line A plurality of coils are wound on each of three cores corresponding to three phases based on the Y connection so as to be output from the point of the turns ratio corresponding to the line voltage,
A phase number converter characterized in that when a three-phase AC voltage is input to each vertex of the Y connection, it is converted to an AC voltage of (3 × n) phase and output. The input three-phase AC voltage is output from a point at which the phase does not change, and the phase is shifted by (60 / n) degrees from the line connecting each vertex of the Y connection and the middle point. A plurality of coils are wound on each of three cores corresponding to three phases based on the Y connection so as to be output from the point of the turns ratio corresponding to the phase voltage,
The middle point is grounded.
A phase number converter characterized in that when a three-phase AC voltage is input to each vertex of the Y connection, it is converted to an AC voltage of (3 × n) phase and output.   The plurality of coils are connected to coils other than the first coil wound around an iron core other than the iron core wound with the first coil from the middle of the first coil wound around each iron core The phase number converter according to claim 1 or 2, characterized in that: The coil according to any one of claims 1 to 3, wherein the plurality of coils is a coil on the secondary side, and the coil on the primary side with respect to the plurality of coils is wound around each iron core at a predetermined turns ratio. Phase number converter described in.