JP2001275322A - Synchronous generator - Google Patents

Synchronous generator

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Publication number
JP2001275322A
JP2001275322A JP2000128584A JP2000128584A JP2001275322A JP 2001275322 A JP2001275322 A JP 2001275322A JP 2000128584 A JP2000128584 A JP 2000128584A JP 2000128584 A JP2000128584 A JP 2000128584A JP 2001275322 A JP2001275322 A JP 2001275322A
Authority
JP
Japan
Prior art keywords
winding
armature
armature winding
windings
phase
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2000128584A
Other languages
Japanese (ja)
Other versions
JP4596342B2 (en
Inventor
Takayuki Fujikawa
隆幸 藤川
Original Assignee
Shin Daiwa Kogyo Co Ltd
新ダイワ工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shin Daiwa Kogyo Co Ltd, 新ダイワ工業株式会社 filed Critical Shin Daiwa Kogyo Co Ltd
Priority to JP2000128584A priority Critical patent/JP4596342B2/en
Publication of JP2001275322A publication Critical patent/JP2001275322A/en
Application granted granted Critical
Publication of JP4596342B2 publication Critical patent/JP4596342B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide a synchronous generator capable of extracting two independent outputs that cause less interference to each other and that has less mechanical vibration. SOLUTION: The number of magnetic poles P of a field system, that is selected from 2(n+2), is provided. Armature windings A1 comprising coils covering the range of one pole to neighboring (P/2-1) poles for a phase are wound on an armature core 1. Armature windings A2 are wound on a winding central axis 5, provided at the position displaced by 180 deg. from a central axis 4 of winding that bisects the angle. The windings A1 are connected to those A2 to constitute armature windings A. Armature windings B1 that are newly selected in terms of the number of coil windings, the number of series windings, coil pitch and number of phases are wound on a central axis 6 of winding provided at the position displaced by θ from the central axes 4, 5 of winding. Armature windings B2 are wound on an winding central axis 7, provided at the position displaced by 180 deg. from the central axis 6 of the armature windings B1. The windings B1 are connected to those B2 to constitute armature windings B. As a result, outputs which are independent of the windings A and B can be extracted.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【0001】[0001]
【発明の属する技術分野】本発明は、1台の同期発電機
から二つの独立した出力を取り出すことができる同期発
電機に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synchronous generator capable of extracting two independent outputs from one synchronous generator.
【0002】[0002]
【従来の技術】1台の同期発電機から二つの独立した出
力を取り出すことを可能とするためには、二つの出力間
に相互干渉がない、すなわち、一方の出力によって他方
の出力が影響を受けないことが重要である。図8の
(a)および(b)は、従来技術に基づくこの種の同期
発電機の断面を示している。電機子鉄心10に巻装され
る電機子巻線Aと電機子巻線Bは、それぞれU相、V
相、W相および中性点0を有する三相スター結線されて
いる。電機子巻線の構成を明確にするため、電機子巻線
Aと電機子巻線Bをそれぞれ同図(a)および(b)に
分けて図示してある。実際には、両電機子巻線は同一の
電機子鉄心10に巻装されている。すなわち、電流が紙
面表から裏面方向へ、また、紙面裏から表方向へ流れる
ように、各コイル線輪を接続している。回転子11の界
磁磁極数は12であり、両電機子巻線A,Bの各相は、
隣接する6極分のコイル線輪から構成され、電機子鉄心
10の周方向に180°(機械角)の分布角を有し、相
互に120°(電気角)の位相差を有している。電機子
巻線Aおよび電機子巻線Bの巻線中央軸12,13は、
U相、V相、W相を含めた各電機子巻線の電機子鉄心1
0の周方向の分布角度を2等分する位置にある。各巻線
中央軸12,13は180°(機械角)ずらし位置にあ
ることから、電機子巻線Aを構成するコイル線輪群と、
電機子巻線Bを構成するコイル線輪群とは、少なくも同
相間で重なり合うことがないので、両電機子巻線A,B
間の磁気的相互干渉は最少限に抑制されることになり、
電機子巻線Aおよび電機子巻線Bから、それぞれから相
互干渉のない独立した出力を取り出すことが可能になっ
ている。
2. Description of the Related Art In order to be able to extract two independent outputs from one synchronous generator, there is no mutual interference between the two outputs, ie, one output affects the other output. It is important not to receive. FIGS. 8A and 8B show a cross section of a synchronous generator of this kind according to the prior art. The armature winding A and the armature winding B wound on the armature core 10 are respectively U-phase and V-phase.
Phase, W phase and three phase star connection with neutral point 0. In order to clarify the configuration of the armature winding, the armature winding A and the armature winding B are separately illustrated in FIGS. In practice, both armature windings are wound on the same armature core 10. That is, the coil loops are connected so that the current flows from the front side to the back side of the page and from the back side to the front side. The number of field poles of the rotor 11 is 12, and each phase of both armature windings A and B is:
It is composed of adjacent six-pole coiled wires, has a distribution angle of 180 ° (mechanical angle) in the circumferential direction of the armature core 10, and has a phase difference of 120 ° (electrical angle) with each other. . The winding center axes 12, 13 of the armature windings A and B are:
Armature core 1 of each armature winding including U phase, V phase, W phase
It is at a position where the distribution angle of 0 in the circumferential direction is bisected. Since the winding central shafts 12 and 13 are at positions shifted by 180 ° (mechanical angle), a group of coil wire loops constituting the armature winding A,
Since at least the same phase does not overlap with the coil wire loop group constituting the armature winding B, both armature windings A and B
Magnetic interference between the two will be minimized,
From the armature winding A and the armature winding B, independent outputs without mutual interference can be taken out from each.
【発明が解決しようとする課題】[Problems to be solved by the invention]
【0003】しかし、前記従来技術の同期発電機は、1
台の同期発電機から二つの独立した出力を取り出すこと
を可能にしているが、電機子巻線Aまたは電機子巻線B
の一方のみから出力を取り出す場合、または電機子巻線
Aの出力と電機子巻線Bの出力に大きさの差が生じる場
合に機械振動が発生するという問題があった。この機械
振動の発生メカニズムについて簡単に説明する。いま、
電機子巻線Aのみから三相出力を取り出すものとする
と、図9に示すように、電機子起磁力に基づく10極の
電機子磁極が回転子の12極の界磁磁極に対向して発生
する、この10極の電機子磁極の存在は、前記電機子起
磁力の分布をフーリエ級数に展開することにより見い出
すことができる。10極の電機子磁極と12極の界磁磁
極の間には、同極性間の反発力、異極性間の吸引力とい
う磁気力に関する法則に従って、図9中のベクトル矢で
示すような回転子の径方向に非対称な磁気力が発生す
る。この磁気力は回転子の径方向に非対称であるがゆえ
に同期発電機の機械構造を歪ませ、回転子の回転運動の
真円性を損なわせる結果、機械振動を発生させる。この
機械振動は同期発電機の耐久性を低下させるとともに、
騒音の発生につながっていた。本発明は、以上のような
点に鑑みてなされたもので、1台の同期発電機から二つ
の独立した出力を取り出すことを可能にするとともに、
機械振動の発生しない同期発電機を提供することを目的
とするものである。
However, the synchronous generator according to the prior art described above has the following problems.
Armature winding A or armature winding B
However, there is a problem that mechanical vibration occurs when the output is taken out from only one of them, or when a difference in magnitude occurs between the output of the armature winding A and the output of the armature winding B. The mechanism of generating the mechanical vibration will be briefly described. Now
Assuming that the three-phase output is taken out only from the armature winding A, as shown in FIG. 9, ten armature magnetic poles based on the armature magnetomotive force are generated facing the twelve field magnetic poles of the rotor. The presence of the ten armature magnetic poles can be found by expanding the distribution of the armature magnetomotive force into a Fourier series. A rotor as shown by a vector arrow in FIG. 9 is provided between a 10-pole armature magnetic pole and a 12-pole field magnetic pole according to the magnetic force law of repulsive force of the same polarity and attractive force of different polarities. Asymmetric magnetic force is generated in the radial direction of Since the magnetic force is asymmetrical in the radial direction of the rotor, the mechanical structure of the synchronous generator is distorted, thereby impairing the circularity of the rotational motion of the rotor, resulting in mechanical vibration. This mechanical vibration reduces the durability of the synchronous generator,
This led to the generation of noise. The present invention has been made in view of the above points, and enables to take out two independent outputs from one synchronous generator,
It is an object of the present invention to provide a synchronous generator free from mechanical vibration.
【0004】[0004]
【課題を解決するための手段】本発明は、前記目的を達
成するために、前記界磁磁束源は2(n+2) 〔n=
1,2,3・・・〕から選定される界磁磁極数Pを有
し、電機子鉄心1に、1相あたり1極分ないし隣接する
(P/2−1)極分を選定範囲とするコイル線輪からな
る電機子巻線A1を巻装し、この電機子巻線A1の電機
子鉄心1の周方向の分布角度を2等分する巻線中央軸4
から180°(機械角)ずらし位置に巻線中央軸5を有
し、コイル線輪数、直列巻数、コイルピッチおよび相数
を電機子巻線A1と同じくする電機子巻線A2を巻装
し、電機子巻線A1と電機子巻線A2を接続して電機子
巻線Aを構成し、前記電機子巻線A1または電機子巻線
A2の巻線中央軸4,5からθ(機械角)ずらし位置に
巻線中央軸6を有し、前記選定範囲に基づくコイル線輪
数、直列巻数、コイルピッチおよび相数について新たに
選定した電機子巻線B1を巻装し、この電機子巻線B1
の巻線中央軸6から180°(機械角)ずらし位置に巻
線中央軸7を有し、コイル線輪数、直列巻数、コイルピ
ッチおよび相数を電機子巻線B1と同じくする電機子巻
線B2を巻装し、電機子巻線B1と電機子巻線B2を接
続して電機子巻線Bを構成し、前記電機子巻線Aと電機
子巻線Bのそれぞれから独立した出力を取り出すように
した同期発電機としたものである。
According to the present invention, in order to achieve the above object, the field magnetic flux source is 2 (n + 2) [n =
1, 2, 3...], And one (P / 2-1) poles per phase or adjacent to the armature core 1 is selected as a selection range. Winding armature A1 composed of a coil wire to be wound, and a winding central axis 4 for dividing the distribution angle of the armature winding A1 in the circumferential direction of the armature core 1 into two equal parts.
A winding armature A2 having a winding center axis 5 at a position shifted by 180 ° (mechanical angle) from the other, and having the same number of coil wire loops, number of series turns, coil pitch, and number of phases as the armature winding A1. , The armature winding A1 and the armature winding A2 are connected to form an armature winding A, and θ (mechanical angle) is set from the winding central axes 4 and 5 of the armature winding A1 or the armature winding A2. ) A winding center shaft 6 is provided at a shifted position, and an armature winding B1 newly selected for the number of coil wire loops, the number of series windings, the coil pitch, and the number of phases based on the selected range is wound. Line B1
Armature winding having a winding center axis 7 at a position shifted by 180 ° (mechanical angle) from the winding center axis 6, and having the same number of coil wires, series turns, coil pitch and phase as armature winding B1. The wire B2 is wound, and the armature winding B1 and the armature winding B2 are connected to form an armature winding B. An output independent from each of the armature winding A and the armature winding B is output. It is a synchronous generator that can be taken out.
【0005】このような本発明によれば、電機子巻線A
または電機子巻線Bの一方のみから出力を取り出す場
合、または電機子巻線Aの出力と電機子巻線Bの出力に
大きさの差が生じる場合であっても、界磁磁極との相互
作用によって回転子の径方向に非対称な磁気力を発生さ
せるような電機子磁極は発生しない。また、電機子巻線
Aと電機子巻線Bとは少なくとも同相間で重ならない領
域が存在するため、両電機子巻線間の磁気的相互干渉が
軽減される結果、電機子巻線A,電機子巻線Bのそれぞ
れから相互干渉の少ない独立した出力を取り出すことが
できる。
According to the present invention, the armature winding A
Alternatively, even when the output is taken out from only one of the armature windings B, or when the output of the armature winding A and the output of the armature winding B have a difference in magnitude, the mutual interaction with the field poles is not affected. An armature magnetic pole that generates an asymmetric magnetic force in the radial direction of the rotor by the action is not generated. Further, since there is a region where the armature winding A and the armature winding B do not overlap at least in the same phase, magnetic mutual interference between the two armature windings is reduced, and as a result, the armature windings A, B An independent output with little mutual interference can be extracted from each of the armature windings B.
【0006】[0006]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照して説明するが、本発明は電機子巻線A、電機子
巻線Bなどと称する二つの電機子巻線の構成を提案する
ものである。そこで、両電機子巻線の構成をより明確に
示すために、従来の技術で採用したように、電機子巻線
Aと電機子巻線Bを分けて図示する。実際には両電機子
巻線は同一の電機子鉄心に巻装されるものである。図1
の(a)、図1の(b)に本発明による第1の実施の形
態を示す。回転子2の界磁磁極数は12である。これは
界磁磁極数Pの選定範囲2(n+2)〔n=1、2、3
・・・〕において、n=4とした場合である。本発明は
巻線界磁または永久磁石界磁などの界磁方式を選ばな
い。従って、以下の実施の形態では極性のみを示す。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The present invention relates to a configuration of two armature windings called an armature winding A, an armature winding B, and the like. Is proposed. Therefore, in order to more clearly show the configuration of both armature windings, the armature winding A and the armature winding B are separately illustrated as employed in the related art. Actually, both armature windings are wound around the same armature core. FIG.
(A) and (b) of FIG. 1 show a first embodiment according to the present invention. The number of field poles of the rotor 2 is 12. This corresponds to a selection range 2 (n + 2) [n = 1, 2, 3,
..], Where n = 4. The present invention does not select a field method such as a winding field or a permanent magnet field. Therefore, only the polarity is shown in the following embodiments.
【0007】電機子鉄心1には、1相あたり隣接する3
極分のコイル線輪からなり、U相、V相、W相の引出線
が引き出された各コイル線輪群が相互に120°(電気
角)の位相差を有する三相の電機子巻線A1を巻装す
る。さらに、電機子巻線A1の電機子鉄心の周方向の分
布角度を2等分する巻線中央軸4から180°(機械
角)ずらし位置に巻線中央軸5を有し、コイル線輪数、
直列巻数、コイルピッチおよび相数を電機子巻線A1と
同じくする電機子巻線A2を巻装し、両電機子巻線A
1,A2の同相関係にあるコイル線輪群どうしを渡り線
3で接続して、中性点0を有する三相の電機子巻線Aを
構成する。
The armature core 1 has three adjacent
A three-phase armature winding composed of coil windings of poles and having a phase difference of 120 ° (electrical angle) between the coil windings from which U-, V-, and W-phase lead wires are drawn. A1 is wound. Further, the armature winding A1 has a winding center axis 5 at a position shifted by 180 ° (mechanical angle) from the winding center axis 4 that divides the distribution angle of the armature core in the circumferential direction into two equal parts. ,
An armature winding A2 having the same number of series turns, coil pitch and number of phases as the armature winding A1 is wound.
A three-phase armature winding A having a neutral point 0 is formed by connecting the coil wire loop groups having the same phase relationship of 1 and A2 with each other by a crossover 3.
【0008】次に、電機子巻線A1の巻線中央軸4から
90°(機械角)ずらし位置に巻線中央軸6を有し、コ
イル線輪数、直列巻数、コイルピッチおよび相数につい
て電機子巻線A1と同じに選定した電機子巻線B1を巻
装し、さらに、電機子巻線B1の巻線中央軸6から18
0°(機械角)ずらし位置に巻線中央軸7を有し、コイ
ル線輪数、直列巻数、コイルピッチおよび相数を電機子
巻線B1と同じくする電機子巻線B2を巻装し、電機子
巻線B1と電機子巻線B2の同相関係にあるコイル線輪
群どうしを渡り線3で接続して中性点0を有する三相の
電機子巻線Bを構成している。
Next, the armature winding A1 has a winding center axis 6 at a position shifted by 90 ° (mechanical angle) from the winding center axis 4 to determine the number of coil wires, the number of series turns, the coil pitch and the number of phases. The armature winding B1 selected in the same manner as the armature winding A1 is wound, and the armature winding B1 is further wound around the central axis 6 to 18 of the armature winding B1.
An armature winding B2 having a winding center axis 7 at a position shifted by 0 ° (mechanical angle) and having the same number of coil wires as the number of series turns, the coil pitch and the number of phases as the armature winding B1 is wound. A three-phase armature winding B having a neutral point 0 is formed by connecting coil wire loops having an in-phase relationship between the armature windings B1 and B2 via crossover wires 3.
【0009】以上のような第1の実施の形態において
は、電機子巻線Aと電機子巻線Bとは、少なくとも同相
間で重なり合う領域が存在しない。このことに起因して
異相間においても相互の重なり領域が狭少に抑えられ
る。本発明において、電機子巻線A1および電機子巻線
B1を構成するコイル線輪数の選定範囲を1相あたり1
極分ないし隣接する(P/2−1)極分としているの
は、この選定範囲に従うことによって、少なくとも同相
間で重なり合うことのない領域を必ず設けることができ
るからである。すなわち、電機子巻線Aと電機子巻線B
は、一つの電機子鉄心1内で磁気的に離れていると理解
できる。このことが効を奏して、両電機子巻線A,B間
の磁気的相互干渉が軽減され、ひいては両電機子巻線か
らの出力間の相互干渉が抑制される結果、独立した二つ
の出力を取り出すことが可能になる。
In the first embodiment as described above, the armature winding A and the armature winding B do not have at least the region where they overlap in the same phase. Due to this, the overlapping region between the different phases is suppressed to be narrow. In the present invention, the selection range of the number of coil wires forming the armature winding A1 and the armature winding B1 is 1 per phase.
The reason why the pole segment is the pole segment or the adjacent (P / 2-1) pole segment is that by following this selection range, at least a region that does not overlap between the in-phases can always be provided. That is, armature winding A and armature winding B
Can be understood as being magnetically separated within one armature core 1. This has the effect of reducing the magnetic mutual interference between the armature windings A and B, and thus suppressing the mutual interference between the outputs from both armature windings. Can be taken out.
【0010】図2は、このことを実験により確認した特
性グラフであり、電機子巻線AのU相、V相、W相に三
相負荷を接続し、三相出力を取り出した場合の、電機子
巻線Aおよび電機子巻線Bそれぞれの端子電圧の変化を
示している。電機子電流の増加に伴って、負荷が接続さ
れた電機子巻線Aの端子電圧は低下しているが、負荷が
接続されない電機子巻線Bの端子電圧はほとんど変化し
ていない。
FIG. 2 is a characteristic graph in which this is confirmed by an experiment. In the case where a three-phase load is connected to the U, V, and W phases of the armature winding A and a three-phase output is taken out, FIG. The change of the terminal voltage of each of the armature winding A and the armature winding B is shown. With an increase in the armature current, the terminal voltage of the armature winding A to which the load is connected has decreased, but the terminal voltage of the armature winding B to which no load is connected hardly changes.
【0011】次に電機子巻線Aのみから出力を取り出す
場合の機械振動について説明する。電機子巻線Aから三
相出力を取り出すと、電機子電流に基づく電機子起磁力
によって、8極、12極、16極などの電機子磁極が、
回転子の12極界磁磁極に対向して発生する。これら磁
極の存在は、電機子起磁力分布をフーリエ級数に展開す
ることにより解析的に見出すことができる。これらの磁
極の中で、12極の電機子磁極は、これと同じ磁極数の
界磁磁極の全てに対して等しく偏磁作用を及ぼす成分で
あるから機械振動の原因となる非対称磁気力を発生させ
ない。
Next, a description will be given of the mechanical vibration when the output is taken out only from the armature winding A. When the three-phase output is taken out from the armature winding A, armature magnetic poles such as 8, 12, and 16 poles are generated by armature magnetomotive force based on the armature current.
It is generated in opposition to the 12-pole field magnetic pole of the rotor. The existence of these magnetic poles can be found analytically by expanding the armature magnetomotive force distribution into a Fourier series. Among these magnetic poles, the 12 armature magnetic poles generate an asymmetric magnetic force that causes mechanical vibration because they are components that exert the same demagnetizing action on all the field poles having the same number of magnetic poles. Do not let.
【0012】次に8極と16極の電機子磁極について機
械振動との関係を考察する。図3は8極の電機子磁極と
12極の界磁磁極が相対向する状況を示している。同図
において、同極性間の反発力、異極性間の吸引力は、回
転子の径方向に対称に分布することが確認できる。すな
わち、機械振動の原因となる非対称磁気力は発生しな
い。同様のことは16極の電機子磁極と12極の界磁磁
極の間にも確認することができる(図示せず)。
Next, the relationship between the armature magnetic poles of 8 and 16 poles and the mechanical vibration will be considered. FIG. 3 shows a situation where eight armature magnetic poles and twelve field magnetic poles face each other. In the figure, it can be confirmed that the repulsive force between the same polarities and the suction force between the different polarities are distributed symmetrically in the radial direction of the rotor. That is, no asymmetric magnetic force causing mechanical vibration is generated. The same can be confirmed between the armature poles of 16 poles and the field poles of 12 poles (not shown).
【0013】図4の(a)、図4の(b)は、本発明の
第2の実施の形態を示す。この第2の実施の形態では、
界磁磁極数は12であり、電機子巻線A1および電機子
巻線B1をそれぞれ1相あたり1極分のコイル線輪から
なる三相の電機子巻線とするとともに、電機子巻線A1
の巻線中央軸4と電機子巻線B1の巻線中央軸6のずら
し角θとして、この選定範囲360°/P≦θ≦90°
(機械角)から90°を選定し、電機子巻線Aと電機子
巻線Bを構成している。
FIGS. 4A and 4B show a second embodiment of the present invention. In the second embodiment,
The number of field magnetic poles is 12, the armature winding A1 and the armature winding B1 are each a three-phase armature winding composed of a coil wire of one pole per phase, and the armature winding A1
The selected range is 360 ° / P ≦ θ ≦ 90 ° as the shift angle θ between the winding center axis 4 of the armature winding B and the winding center axis 6 of the armature winding B1.
90 ° is selected from (mechanical angle) to constitute the armature winding A and the armature winding B.
【0014】図5の(a)、(b)に本発明の第3の実
施の形態を示す。この第3の実施の形態では、界磁磁極
数は10であり、電機子巻線A1を1相あたり3極分の
コイル線輪からなる三相の電機子巻線とし、電機子巻線
B1を1相あたり2極分のコイル線輪からなる三相の電
機子巻線とするとともに、電機子巻線A1の巻線中央軸
4と電機子巻線B1の巻線中央軸6のずらし角θを90
°に選定し、電機子巻線Aと電機子巻線Bを構成してい
る。
FIGS. 5A and 5B show a third embodiment of the present invention. In the third embodiment, the number of field magnetic poles is 10, the armature winding A1 is a three-phase armature winding composed of a coil wire for three poles per phase, and the armature winding B1 is used. Is a three-phase armature winding composed of coil windings of two poles per phase, and a shift angle between the winding center axis 4 of the armature winding A1 and the winding center axis 6 of the armature winding B1. θ is 90
° and armature winding A and armature winding B are configured.
【0015】図6に本発明の第4の実施の形態を示す。
同図は第3の実施の形態における電機子巻線Bについ
て、他の実施の形態を示している。電機子巻線B1を、
1相あたり3極分のコイル線輪からなる三相の電機子巻
線とし、電機子巻線B1の巻線中央軸6と電機子巻線A
2の巻線中央軸5のずらし角θを72°に選定して、電
機子巻線Bを構成している。電機子巻線Aと電機子巻線
Bの間の磁気的相互干渉はθが90°の場合と比較して
若干大きくなるが、製造上、実用上の見地から、このよ
うな構成も可能であることを示している。この場合も機
械振動の原因となる非対称磁気力は発生しない。
FIG. 6 shows a fourth embodiment of the present invention.
This figure shows another embodiment of the armature winding B in the third embodiment. Armature winding B1
A three-phase armature winding composed of coil windings of three poles per phase is provided. A winding central shaft 6 of the armature winding B1 and the armature winding A
The armature winding B is configured by selecting the shift angle θ of the winding central shaft 5 of the second arm at 72 °. The magnetic mutual interference between the armature winding A and the armature winding B is slightly larger than when θ is 90 °, but such a configuration is also possible from a manufacturing and practical viewpoint. It indicates that there is. Also in this case, no asymmetric magnetic force causing mechanical vibration is generated.
【0016】本発明は界磁方式を選ばないことは先に述
べた。図7は特殊な巻線界磁方式の一例となる回転子を
示しており、2極の界磁巻線8と、一方の極弧9を形成
する三つの凸部9aと二つの凹部9b、同様に他方の極
弧を形成する三つの凸部と二つの凹部とによって、凹部
9bが凸部9aの磁極に対して相対的に異極性となる効
果を利用して10極の界磁磁極を発生させるものであ
る。本発明の第3、第4の実施の形態の回転子を図7に
示す回転子に置換しても、本発明の目的は達成可能であ
る。
As described above, the present invention does not use a field method. FIG. 7 shows a rotor that is an example of a special winding field method, in which a two-pole field winding 8, three projections 9 a and two recesses 9 b forming one pole arc 9, Similarly, the three convex portions and the two concave portions forming the other pole arc form a 10-pole field magnetic pole utilizing the effect that the concave portion 9b has a different polarity relative to the magnetic pole of the convex portion 9a. To be generated. Even if the rotors according to the third and fourth embodiments of the present invention are replaced with the rotor shown in FIG. 7, the object of the present invention can be achieved.
【0017】本発明において、電機子巻線Aまたは電機
子巻線Bは、実施の形態で示したような三相に限るもの
ではない。すなわち、必要とされる機能に応じて、二
相、単相などが構成できる。また、両電機子巻線は、三
相スター結線に限ることなく、三相デルタ結線とするこ
と、さらに、コイル線輪を、実施の形態に示したような
集中巻に限ることなく、分布巻とすることなどは従来技
術の範囲内で実施可能である。
In the present invention, the armature winding A or the armature winding B is not limited to three phases as shown in the embodiment. That is, two-phase, single-phase, and the like can be configured according to the required functions. Further, the two armature windings are not limited to the three-phase star connection, but may be of the three-phase delta connection, and the coil winding is not limited to the concentrated winding as shown in the embodiment, but may be the distributed winding. And so on can be implemented within the scope of the prior art.
【0018】[0018]
【発明の効果】本発明は、請求項1に記載のように構成
したので、電機子巻線Aまたは電機子巻線Bの一方のみ
から出力を取り出す場合、または電機子巻線Aの出力と
電機子巻線Bの出力に大きさの差が生じる場合であって
も、界磁磁極との相互作用によって回転子の径方向に非
対称な磁気力を発生させるような電機子磁極は発生しな
いので、機械振動すなわち騒音が発生しない。また、電
機子巻線Aと電機子巻線Bとは少なくとも同相間で重な
らない領域が存在するため、両電機子巻線間の磁気的相
互干渉が軽減される結果、電機子巻線A,電機子巻線B
から、すなわち、1台の同期発電機から相互干渉の少な
い二つの独立した出力を取り出すことができる。
According to the present invention, the output is taken out from only one of the armature winding A and the armature winding B. Even if there is a difference in the magnitude of the output of the armature winding B, there is no armature magnetic pole that generates an asymmetric magnetic force in the radial direction of the rotor due to interaction with the field magnetic pole. No mechanical vibration, that is, no noise is generated. Further, since there is a region where the armature winding A and the armature winding B do not overlap at least in the same phase, magnetic mutual interference between the two armature windings is reduced, and as a result, the armature windings A, B Armature winding B
, That is, two independent outputs with little mutual interference can be extracted from one synchronous generator.
【図面の簡単な説明】[Brief description of the drawings]
【図1】(a),(b)は、本発明の同期発電機の第1
の実施の形態を示す断面図である。
1 (a) and 1 (b) show a first embodiment of a synchronous generator according to the present invention.
It is sectional drawing which shows embodiment.
【図2】本発明の電機子巻線A,Bの電機子電流対端子
電圧の特性グラフである。
FIG. 2 is a characteristic graph of armature current versus terminal voltage of armature windings A and B of the present invention.
【図3】本発明の同期発電機の回転子と電機子の磁極を
示した図である。
FIG. 3 is a diagram showing magnetic poles of a rotor and an armature of the synchronous generator of the present invention.
【図4】(a),(b)は、本発明の同期発電機の第2
の実施の形態を示す断面図である。
4 (a) and 4 (b) show a second embodiment of the synchronous generator according to the present invention.
It is sectional drawing which shows embodiment.
【図5】(a),(b)は、本発明の同期発電機の第3
の実施の形態を示す断面図である。
5 (a) and 5 (b) show a third embodiment of the synchronous generator according to the present invention.
It is sectional drawing which shows embodiment.
【図6】本発明の同期発電機の第4の実施の形態を示す
断面図である。
FIG. 6 is a sectional view showing a fourth embodiment of the synchronous generator of the present invention.
【図7】本発明の構成要素である回転子として、特殊な
巻線界磁方式の一例となる回転子を示す図である。
FIG. 7 is a diagram showing a rotor that is an example of a special winding field system as a rotor that is a component of the present invention.
【図8】(a),(b)は従来の同期発電機の断面図で
ある。
8A and 8B are cross-sectional views of a conventional synchronous generator.
【図9】従来の同期発電機の回転子と電気子の磁極を示
した図である。
FIG. 9 is a diagram showing magnetic poles of a rotor and an armature of a conventional synchronous generator.
【符号の説明】[Explanation of symbols]
1 電機子鉄心 2 回転子 3 渡り線 4 電機子巻線A1の巻線中央線 5 電機子巻線A2の巻線中央線 6 電機子巻線B1の巻線中央線 7 電機子巻線B2の巻線中央線 8 界磁巻線 9 極弧 9a 凸部 9b 凹部 A1 電機子巻線 A2 電機子巻線 B1 電機子巻線 B2 電機子巻線 REFERENCE SIGNS LIST 1 armature core 2 rotor 3 crossover 4 winding center line of armature winding A1 5 winding center line of armature winding A2 6 winding center line of armature winding B1 7 of armature winding B2 Winding center line 8 field winding 9 pole arc 9a convex part 9b concave part A1 armature winding A2 armature winding B1 armature winding B2 armature winding

Claims (4)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 回転子と電機子とからなり、回転子は巻
    線界磁または永久磁石界磁による界磁磁束源であり、電
    機子は、この界磁磁束源からの界磁磁束と鎖交して起電
    力を誘起する電機子巻線と、この電機子巻線が巻装され
    る電機子鉄心とからなる同期発電機において、 前記界磁磁束源は2(n+2) 〔n=1,2,3・・
    ・〕から選定される界磁磁極数Pを有し、 電機子鉄心(1)に、1相あたり1極分ないし隣接する
    (P/2−1)極分を選定範囲とするコイル線輪からな
    る電機子巻線A1を巻装し、この電機子巻線A1の電機
    子鉄心(1)の周方向の分布角度を2等分する巻線中央
    軸(4)から180°(機械角)ずらし位置に巻線中央
    軸(5)を有し、コイル線輪数、直列巻数、コイルピッ
    チおよび相数を電機子巻線A1と同じくする電機子巻線
    A2を巻装し、電機子巻線A1と電機子巻線A2を接続
    して電機子巻線Aを構成し、 前記電機子巻線A1または電機子巻線A2の巻線中央軸
    (4,5)からθ(機械角)ずらし位置に巻線中央軸
    (6)を有し、前記選定範囲に基づくコイル線輪数、直
    列巻数、コイルピッチおよび相数について新たに選定し
    た電機子巻線B1を巻装し、この電機子巻線B1の巻線
    中央軸(6)から180°(機械角)ずらし位置に巻線
    中央軸(7)を有し、コイル線輪数、直列巻数、コイル
    ピッチおよび相数を電機子巻線B1と同じくする電機子
    巻線B2を巻装し、電機子巻線B1と電機子巻線B2を
    接続して電機子巻線Bを構成し、 前記電機子巻線Aと電機子巻線Bのそれぞれから独立し
    た出力を取り出すようにしたことを特徴とする同期発電
    機。
    1. A rotor comprising a rotor and an armature, wherein the rotor is a field magnetic flux source based on a winding field or a permanent magnet field, and the armature is coupled with a field magnetic flux from the field magnetic flux source. In a synchronous generator including an armature winding that induces an electromotive force and an armature core around which the armature winding is wound, the field magnetic flux source is 2 (n + 2) [n = 1, 2,3 ...
    ···] from the coil wire which has one or more (P / 2-1) poles per phase in the armature core (1). The armature winding A1 is wound, and the armature winding A1 is shifted by 180 ° (mechanical angle) from the winding center axis (4), which divides the distribution angle of the armature core (1) in the circumferential direction into two equal parts. An armature winding A2 having a winding center axis (5) at the position and having the same number of coil wires, series windings, coil pitch, and number of phases as the armature winding A1 is wound. And the armature winding A2 to form an armature winding A. The armature winding A1 or the armature winding A2 is shifted from the winding center axis (4, 5) by θ (mechanical angle). A winding central axis (6), and a newly selected electric wire for the number of coil wires, the number of series windings, the coil pitch and the number of phases based on the selected range. The armature winding B1 is wound, and the armature winding B1 has a winding center axis (7) at a position shifted by 180 ° (mechanical angle) from the winding center axis (6). An armature winding B2 having the same winding number, coil pitch and number of phases as the armature winding B1 is wound, and the armature winding B1 and the armature winding B2 are connected to form an armature winding B. A synchronous generator, wherein independent outputs are taken from each of the armature windings A and B.
  2. 【請求項2】 前記電機子巻線Aおよび電機子巻線Bは
    両者とも多相巻線または単相巻線で構成されたことを特
    徴とする請求項1に記載の同期発電機。
    2. The synchronous generator according to claim 1, wherein both the armature winding A and the armature winding B are formed of a multi-phase winding or a single-phase winding.
  3. 【請求項3】 前記電機子巻線Aおよび電機子巻線B
    は、一方が単相巻線で、他方が多相巻線で構成されるこ
    とを特徴とする請求項1に記載の同期発電機。
    3. The armature winding A and the armature winding B.
    3. The synchronous generator according to claim 1, wherein one of the generators is a single-phase winding and the other is a multi-phase winding.
  4. 【請求項4】 前記巻線中央軸からのずらし角θは36
    0°/P≦θ≦90°(機械角)に定める範囲から選定
    されることを特徴とする請求項1に記載の同期発電機。
    4. The shift angle θ from the winding center axis is 36.
    The synchronous generator according to claim 1, wherein the synchronous generator is selected from a range defined by 0 ° / P ≦ θ ≦ 90 ° (mechanical angle).
JP2000128584A 2000-03-27 2000-03-27 Synchronous generator Expired - Fee Related JP4596342B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034509B2 (en) * 2003-12-19 2006-04-25 Alexander Kusko Multiple voltage generating
WO2015005375A1 (en) * 2013-07-09 2015-01-15 Fukuyanagi Hisayoshi Large output, high efficiency, single phase, multi-polar power generator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50139207U (en) * 1974-04-30 1975-11-17
JPS60124276U (en) * 1984-01-30 1985-08-21
JPH09149613A (en) * 1995-11-24 1997-06-06 Sawafuji Electric Co Ltd Engine generator
JPH09285195A (en) * 1996-04-15 1997-10-31 Taiyo Denki Seisakusho:Kk Generator for welding
JP2000308294A (en) * 1999-04-19 2000-11-02 Kokusan Denki Co Ltd Stator for revolving magnetic field type single-phase synchronous motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50139207U (en) * 1974-04-30 1975-11-17
JPS60124276U (en) * 1984-01-30 1985-08-21
JPH09149613A (en) * 1995-11-24 1997-06-06 Sawafuji Electric Co Ltd Engine generator
JPH09285195A (en) * 1996-04-15 1997-10-31 Taiyo Denki Seisakusho:Kk Generator for welding
JP2000308294A (en) * 1999-04-19 2000-11-02 Kokusan Denki Co Ltd Stator for revolving magnetic field type single-phase synchronous motor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7034509B2 (en) * 2003-12-19 2006-04-25 Alexander Kusko Multiple voltage generating
WO2015005375A1 (en) * 2013-07-09 2015-01-15 Fukuyanagi Hisayoshi Large output, high efficiency, single phase, multi-polar power generator
JP2015019459A (en) * 2013-07-09 2015-01-29 久慶 ▲ふく▼楊 Large-output high-efficiency shingle-phase multipolar generator
CN105531913A (en) * 2013-07-09 2016-04-27 福杨久庆 Large output, high efficiency, single phase, multi-polar power generator
TWI647896B (en) * 2013-07-09 2019-01-11 福楊久慶 Large output and high efficiency single phase multipole generator

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