JPH0923637A - Power generation equipment - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a power generation device based on a novel principle which can stably supply electric energy without destroying a natural environment and can be made compact. . A primary winding that generates a rotating magnetic field in addition to an alternating magnetic field, and a secondary winding that is arranged so as to interlink with at least the alternating magnetic field generated by the primary winding are provided on the stator side. A tertiary winding is provided at least on the rotor side having a rotation axis at the axis of rotation of the rotating magnetic field, in which electromotive force is induced by the rotating magnetic field and a current flows.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power generator, and more particularly to a power generator as an electric energy source for supplying electric energy to a converter, a load circuit, etc. by self-power generation.

[0002]

2. Description of the Related Art Conventionally, the following types of power generating equipment have been known. a) Hydroelectric equipment that uses the falling energy of water at high altitudes to generate electrical energy. b) A thermal power generation device that generates electric energy by using thermal energy of fuel such as coal, heavy oil, and combustible gas. c) A nuclear power generation device that generates electric energy by using the energy released by the reaction in the process of nuclear fission. d) A solar power generation device that generates electrical energy using solar energy such as solar thermal energy or solar energy. e) Wind power generation equipment that uses wind energy to generate electrical energy. f) Chemical generators, so-called batteries, which generate electrical energy using chemical energy based on the occurrence of a chemical reaction that gives a product with a low energy content.

[0003]

However, each of the above-described power generating devices has the following problems.
Hydroelectric power generation equipment has a natural environment due to dam construction, thermal power generation equipment has a natural environment due to air pollution due to exhaust gas such as carbon dioxide, NO _x and SO _x , and nuclear power generation equipment has a nuclear power generation equipment. In addition to the natural environment caused by accidents and nuclear waste, batteries also have natural environmental problems due to the disposal of heavy metals such as mercury, nickel and cadmium used in chemical reactions.

On the other hand, the solar power generation equipment and the wind power generation equipment do not adversely affect the natural environment, but the solar power generation equipment limits the number of days that can be used in a year. Therefore, there is a problem in stable supply of electric energy.

The present invention aims at solving such problems, and is capable of stably supplying electric energy without destroying the natural environment, and further, it is possible to make a compact new principle. The purpose is to provide power generation equipment based on this.

[0006]

Means for Solving the Problems and Actions / Effects In order to achieve the above-mentioned object, the power generator according to the present invention is
A primary winding that generates a rotating magnetic field in addition to the alternating magnetic field and a secondary winding that is arranged so as to interlink with at least the alternating magnetic field generated by the primary winding are provided on the stator side, and the rotating magnetic field At least a tertiary winding, in which electromotive force is induced by the rotating magnetic field and a current flows, is provided on the rotor side having a rotating shaft at the rotating shaft core, or a primary winding that generates a rotating magnetic field in addition to the alternating magnetic field, and A secondary winding, which is arranged so as to interlink with at least an alternating magnetic field generated by the primary winding, is provided on the rotor side having a rotation axis at the rotation axis of the rotation magnetic field, and at least an electromotive force is generated by the rotation magnetic field. This is to provide a tertiary winding on the stator side, which induces a current to flow.

According to this structure, an electromotive force due to the alternating magnetic field is induced in the secondary winding by at least the alternating magnetic field generated by the alternating magnetic flux due to the exciting current flowing in the primary winding. Similarly, at least the rotating magnetic field generated by the alternating magnetic flux generated by the exciting current flowing through the primary winding induces an electromotive force due to the rotating magnetic field in the tertiary winding, so that an induced current flows. By the way, the electromotive force induced in the secondary winding based on the alternating magnetic field is almost equal to the power supplied to pass the exciting current in the primary winding minus some losses such as copper loss and iron loss. Therefore, combined with the electromotive force induced in the tertiary winding based on the rotating magnetic field, the combined electromotive force induced in the secondary winding and the tertiary winding is smaller than the power supplied to the primary winding. It becomes large and self-generated.

Further, the rotor is rotationally driven by the magnetic field generated by the induced magnetic field caused by the induced current flowing in the tertiary winding and the electromagnetic force generated by the induced magnetic field. Therefore, while it can be used as an induction motor, it can stably supply electric energy without destroying the natural environment, and can be made compact.

If at least a part of the electromotive force induced in the secondary winding and / or the tertiary winding is supplied to the primary winding, the electric energy from the outside is excluded except at the time of initial starting. Self-powered generation without the need for supply.

It is preferable that the secondary winding also interlinks with the rotating magnetic field so that an electromotive force is induced not only by the alternating magnetic field but also by the rotating magnetic field. It is preferable that the tertiary winding also interlinks with the alternating magnetic field so that electromotive force is induced by the alternating magnetic field in addition to the rotating magnetic field. Further, the alternating magnetic field and the rotating magnetic field generated by the primary winding may be generated from a multi-phase alternating current including direct current, single-phase alternating current, two-phase alternating current, or three-phase alternating current.

By the way, the alternating number of the alternating magnetic field and the rotating number of the rotating magnetic field generated by the multi-phase alternating current including the direct current, the single-phase alternating current, the two-phase alternating current, or the three-phase alternating current, for example, in the case of direct current, the direct current is intermittently supplied. Is shortened, and in the case of single-phase alternating current, two-phase alternating current and multi-phase alternating current, if the period of the alternating current is shortened to a large value, electromotive force induced in the secondary winding and the tertiary winding is reduced. Is large. Further, if the primary winding is a multi-phase symmetrical winding including three phases and a multi-pole winding including four-pole winding, the number of phases of the multi-phase winding and the number of poles of the multi-pole winding increase. Accordingly, the electromotive force induced in the secondary winding and the tertiary winding becomes large. In this case, it is preferable that the secondary winding and the tertiary winding are symmetrical windings having the same number of phases as the primary winding.

The voltage / current of the electromotive force induced in the secondary winding and the tertiary winding is determined by the winding ratio of the primary winding and the secondary winding, and between the primary winding and the tertiary winding. It is preferable to adjust it according to the winding ratio. The primary winding and the secondary winding are arranged in the same magnetic circuit, and further, the corresponding winding portions of the primary winding and the secondary winding are close to each other in the iron core forming the same magnetic circuit. Is preferably provided as

Other objects of the present invention will become apparent from the detailed description given below. However, while the detailed description and specific examples describe the most preferred embodiments, various changes and modifications within the spirit and scope of the invention will be apparent to those skilled in the art from the detailed description, and They are described only as examples.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of a power generator according to the present invention will be described with reference to the drawings.

1 and 2, the stator frame 10 is coaxially arranged in a cylindrical stator frame 10 having upper and lower walls.
An annular cylindrical iron core 11 is provided which is fixed to and is made by laminating annular thin steel plates. This annular cylindrical iron core 11
Twelve slots 12 are formed on the inner peripheral surface side at regular intervals in the circumferential direction and along the axial direction. At the inner side of these slots 12, as shown in FIG. 3, a primary winding 14 connected to a three-phase AC power supply 13 is provided.
U1 phase winding 14A, V1 phase winding 14B and W1
The phase winding 14C is a Y-connection three-phase symmetrical winding, and FIG.
It is arranged and fitted as shown in. Further, on the front side in the slot 12, the U2 phase winding 15A, the V2 phase winding 15B, and the W2 phase winding 15C, which are the secondary windings 15 shown in the figure, are similarly Y-connected three-phase symmetrical windings. Therefore, it is arranged and fitted as shown in FIG.

By the way, in the hollow portion of the annular cylindrical iron core 11, the annular cylindrical iron core 11, that is, the axial center of the cylindrical stator frame 10 is located on the upper and lower walls of the stator frame 10. Bearings 18 and 19 are provided in the holes 16 and 17 provided, respectively.
A cylindrical iron core 21 is provided which has a rotating shaft 20 rotatably supported via a shaft, is coaxially fixed to the rotating shaft 20, and is formed by laminating annular thin steel plates.
On the outer peripheral surface side of the cylindrical iron core 21, twelve slots 22 are similarly arranged at equal intervals in the circumferential direction and along the axial direction.
Are formed. In these slots 22, U3 phase windings 23A, V which are the tertiary windings 23 shown in FIG.
Similarly, the 3-phase winding 23B and the W3-phase winding 23C are arranged and inserted as shown in FIG. 4C by Y-connection 3-phase symmetrical windings.

[0017]

Embedded image Thus, the primary winding 14 is the U1-phase winding 14A, V1.
Three-phase AC power supply 1 for phase winding 14B and W1 phase winding 14C
When three balanced three-phase alternating currents i _a1 , i _b1 , i _c1 as shown in FIGS. 3 and 4 (a) are made to flow from 3 as an exciting current, these balanced three-phase alternating currents i _a1 , i _b1 , i _c1 Each alternating magnetic field 24, as shown in FIG.
And a rotating magnetic field 25 rotating once clockwise during two cycles of the balanced three-phase alternating _currents i _a1 , i _b1 , and i _c1 . on the other hand,
The secondary winding 1 is attached to each of the alternating magnetic field 24 and the rotating magnetic field 25.
5 U2 phase winding 15A, V2 phase winding 15B and W
The two-phase winding 15C is interlinked, and these U2-phase windings 15A,
Electromotive force is induced in the V2-phase winding 15B and the W2-phase winding 15C by the alternating magnetic field 24 and the rotating magnetic field 25, and as shown in FIGS. 3 and 4 (b), the balanced three-phase alternating current i _a2 , i _b2 and i _c2 flow. It should be noted that the rotating shaft 20 is positioned at the rotating shaft core of the rotating magnetic field 25.

Similarly, the winding generated by the primary winding 14 is
The U3 phase windings 23A, V, which are the tertiary windings 23, in the rolling magnetic field 25
The 3-phase winding 23B and the W3-phase winding 23C are interlinked,
These U3 phase winding 23A, V3 phase winding 23B and W3 phase
An electromotive force is induced in the winding wire 23C, so that
As shown in (c), balanced three-phase alternating current i_a3, I_b3,
i _c3Flows. These induced current i_a3, I_b3, I_c3Originally
And the rotating magnetic field 25 and the induced magnetic field
The annular cylindrical iron core 11 is used as the stator side by the electromagnetic force of
In addition, the cylindrical core 21 is used as the rotor side and the rotor side is used as the rotor side.
All the cylindrical iron cores 21 are rotationally driven.

In this way, the electromotive force induced in the secondary winding 15 and the tertiary winding 23 is the alternating magnetic field 24 of the primary winding 14 in the secondary winding 15, and further the rotating magnetic field 2
5 is added, and the electromotive force induced in the secondary winding 15 based on the alternating magnetic field 24 is the primary winding 1
4 is almost equal to the power of the balanced three-phase alternating currents i _a1 , i _b1 , and i _c1 that has been subtracted from some losses such as copper loss and iron loss, so it is more than the power supplied to the primary winding 14. It becomes large and self-generated.

Further, as shown in FIGS. 6 and 7, the annular cylindrical iron core is coaxially fixed to the lower wall of the stator frame 10 'in the cylindrical stator frame 10'. A first annular cylindrical iron core 11 ′ corresponding to 11 is provided, and the annular cylindrical space between the outer peripheral surface of the first annular cylindrical iron core 11 ′ and the inner peripheral surface of the stator frame 10 ′. A second annular cylindrical core 21 'corresponding to the cylindrical core 21 loosely fitted in may be fixedly provided inside the cylindrical frame 26 as shown in the figure. In this case, a slot 12 'in which the primary winding 14' is arranged on the back side and the secondary winding 15 'is arranged on the front side is formed on the outer peripheral surface side of the first annular cylindrical iron core 11', and The second annular tubular core 2 except that a slot 22 'in which the tertiary winding 23' is arranged is formed on the inner peripheral surface side of the second annular tubular core 21 '.
The rotating shaft 20 'of 1'is positioned in the hollow portion of the first annular tubular core 11' at the axis of the first annular tubular core 11 ', in other words, at the axis of rotation of the rotating magnetic field. Is the same as described above.

In the present embodiment, the case of three-phase AC four-pole concentrated (full section) winding of lap winding has been described as an example.
6 slots for 3-phase AC 2-pole concentrated (all sections), and 36 slots for 3-phase AC 4-pole distribution (all sections)
Needless to say, it may be. In addition, the annular tubular core 11 and the first annular tubular core 11 ′ are used as the stator side,
Although the columnar core 21 and the second annular tubular core 21 'have been described as the rotor side, the annular tubular core 11 and the first annular tubular core 11' are provided with a rotation axis to form the circle. An annular tubular core 11,
11 'may be the rotor side, and the columnar core 21 and the second annular tubular core 21' may be the stator side.

In this embodiment, the slots 12, 1
In the 2 ', the primary windings 14 and 14' are arranged on the back side, and the secondary windings 15 and 15 'are arranged on the front side. On the contrary, the primary windings 14 and 14' are arranged on the front side and the secondary windings. The wires 15 and 15 'may be arranged on the back side, and the primary windings 14 and 14' and the secondary winding 1
The 5, 15 'may be arranged on the front side and the back side without distinction. Further, the case of the three-phase symmetrical winding with the Y connection has been described, but the three-phase symmetrical winding with the Δ connection may be used. Furthermore, although the case of overlapping winding has been described, it may be wave winding or chain winding, and the case of full-pitch winding has been described, but short-pitch winding may also be used. Is also good.

In this embodiment, the iron cores 11, 11 ',
21 and 21 'are made by laminating thin steel plates, but may be made by rolling, may be in the form of lumps, or may be made by solidifying ferrite, that is, made of magnetic material. Anything may be used as long as it is.

In this embodiment, the primary windings 14, 1
4'is a three-phase winding and a three-phase AC power supply 13 is used to flow an exciting current, but a single-phase AC power supply is used to flow an exciting current into a capacitor phase split type, a reactance phase split type, or a shaded coil type. Then, the primary windings 14 and 14 'may have a two-phase winding configuration. Further, as shown in FIG. 8, the primary winding 14 ″ is a single-phase winding 14 ″ A with three windings,
A DC power supply 30 is used as 14 "B, 14" C so that exciting currents i _a1 , i _b1 , and i _c1 are sequentially and intermittently passed through a switch circuit 31 composed of _six SCR ₁ to SCR _6. You can The secondary windings 15 and 15 'and the tertiary windings 23 and 23' correspond to the single-phase windings, the two-phase windings, and the three-phase windings of the primary windings 14 and 14 '. Two-phase winding, three-phase winding, etc. may be used.

In this embodiment, the secondary windings 15 and 1 are
The electromotive force induced in 5 ′ is an alternating magnetic field 24 and a rotating magnetic field 25 based on the alternating magnetic flux generated in the primary winding 14′14.
Although the secondary windings 15 and 15 'are interlinked, it is needless to say that the secondary windings 15 and 15' may be interlinked only to the alternating magnetic field 24. Also,
In this embodiment, the electromotive force induced in the tertiary windings 23 and 23 'is linked to the rotating magnetic field 25 based on the alternating magnetic flux generated in the primary windings 14 and 14'. Needless to say, however, the magnetic field may be linked to the alternating magnetic field 24 based on the alternating magnetic flux in addition to the rotating magnetic field 25.

The secondary windings 15 and 15 'and / or the tertiary windings 23 and 2 in each of the above-described embodiments and modifications.
At least a part of the electromotive force induced in 3'is supplied to the primary winding 1
When supplied to Nos. 4 and 14 ', the self-power generation is performed without the need to supply electric energy from the outside except at the time of initial start-up, and further, it has a function as an induction motor. Further, if the period of the currents flowing through the primary windings 14 and 14 'is shortened to increase the alternating number of the alternating magnetic field 24 and the rotating number of the rotating magnetic field 25, the secondary winding increases as the number of phases of the multiphase winding increases. Line 15,
It goes without saying that the electromotive force induced in 15 'and the tertiary windings 23, 23' is large. The primary winding 1
4, 14 ', secondary winding 15, 15' and tertiary winding 2
When arranged on the rotor side in 3, 23 ', the current supplied and the induced electromotive force can be supplied or extracted via the slip ring.

According to the present invention, self-power generation capable of stably supplying electric energy without destroying the natural environment can be performed, and it is necessary to supply electric energy from the outside except at the initial start-up. Self-power generation can be done without. Therefore, conventional hydropower equipment, thermal power equipment,
Not only can electric power be supplied in place of nuclear power generation equipment, solar power generation equipment, wind power generation equipment, batteries, etc., but in particular, all electric equipment including consumer use in which a motor is driven by the electric energy. Is extremely useful in

As described above, it is obvious that the present invention can be modified in various ways. Such modifications do not depart from the spirit and scope of the invention and all such modifications and changes that are obvious to those skilled in the art are included in the claims.

[Brief description of drawings]

FIG. 1 is a vertical sectional view for explaining a first embodiment of a power generating device according to the present invention.

FIG. 2 is a cross-sectional view of the power generating device described in FIG.

FIG. 3 is a circuit diagram described in FIG.

4 (a), (b) and (c) are the winding diagrams described in FIG.

5 is a generation diagram of the rotating magnetic field described in FIG. 1. FIG.

FIG. 6 is a vertical cross-sectional view for explaining a second embodiment of the power generating device according to the present invention.

FIG. 7 is a cross-sectional view of the power generation device described in FIG.

FIG. 8 is a circuit diagram for explaining a modification example in which an exciting current is supplied to the primary winding in the power generator according to the present invention.

[Explanation of symbols]

 10, 10 'Stator frame 11, 11' Annular tubular core (first annular tubular core) 12, 22, 12 ', 22' Slot 13 Three-phase AC power supply 14, 14 ', 14 "Primary winding Wire 15,15 'Secondary winding 16,17 Hole 18,19 Bearing 20,20' Rotating shaft 21,21 'Cylindrical iron core (second cylindrical iron core) 23,23' Tertiary winding 24 Alternating magnetic field 25 rotation Magnetic field 26 Cylindrical frame 30 DC power supply 31 Switch circuit

Claims (9)

[Claims] 1. A stator winding is provided with a primary winding for generating a rotating magnetic field in addition to an alternating magnetic field and a secondary winding arranged so as to interlink with at least the alternating magnetic field generated by the primary winding. A power-generating device, characterized in that a tertiary winding is provided on at least a rotor side having a rotating shaft at a rotating shaft core of the rotating magnetic field, in which electromotive force is induced by the rotating magnetic field and a current flows. 2. A rotating shaft of the rotating magnetic field, comprising a primary winding for generating a rotating magnetic field in addition to the alternating magnetic field and a secondary winding arranged so as to interlink with at least the alternating magnetic field generated by the primary winding. A power generating device, characterized in that it is provided on a rotor side having a rotating shaft in its core, and at least a tertiary winding through which a current in which an electromotive force is induced by the rotating magnetic field flows is provided on the stator side. 3. The power generator according to claim 1, wherein at least a part of the electromotive force induced in the secondary winding and / or the tertiary winding is supplied to the primary winding. 4. The secondary winding is characterized in that the secondary winding also links with the rotating magnetic field so that electromotive force is induced by the rotating magnetic field in addition to the alternating magnetic field. The power generator according to any one of claims 1 to 3. 5. The electromotive force is induced in the tertiary winding by interlinking the alternating magnetic field with the alternating magnetic field and by the alternating magnetic field in addition to the rotating magnetic field. The power generator according to any one of 1 to 4. 6. The alternating magnetic field and the rotating magnetic field generated by the primary winding are generated by a multi-phase alternating current including direct current, single-phase alternating current, two-phase alternating current, or three-phase alternating current. The power generation device described in any of the above. 7. The power generator according to claim 1, wherein the primary winding and the secondary winding are arranged in the same magnetic circuit. 8. The voltage / current of the electromotive force induced in the secondary winding is adjusted according to the turn ratio of the primary winding and the secondary winding. The power generator according to any one of 1. 9. The voltage / current of the electromotive force induced in the tertiary winding is adjusted according to the turn ratio between the primary winding and the tertiary winding. The power generation equipment described in Crab.