JPS63287346A - Single-phase synchronous generator - Google Patents
Single-phase synchronous generatorInfo
- Publication number
- JPS63287346A JPS63287346A JP12078987A JP12078987A JPS63287346A JP S63287346 A JPS63287346 A JP S63287346A JP 12078987 A JP12078987 A JP 12078987A JP 12078987 A JP12078987 A JP 12078987A JP S63287346 A JPS63287346 A JP S63287346A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- rotor
- magnetomotive force
- synchronous generator
- winding
- 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.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 34
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、単相同期発電機の固定子巻線に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a stator winding of a single-phase synchronous generator.
一般に従来の高電圧大容量の同期発電機に例えば第２図
および第３図に示すように構成されでいる。すなわち、
第２図は同期発電機の軸方向に沿って切欠し友断面図で
、第３図区回転子部の断面図である。図において、１は
固定子巻線、２に回転子巻線、乙に固定子コア、４は回
転子コア、５に銅板等の短絡環、６は軸、７に制動巻線
である。Generally, a conventional high-voltage, large-capacity synchronous generator is configured as shown in FIGS. 2 and 3, for example. That is,
FIG. 2 is a sectional view cut away along the axial direction of the synchronous generator, and FIG. 3 is a sectional view of the rotor section. In the figure, 1 is a stator winding, 2 is a rotor winding, B is a stator core, 4 is a rotor core, 5 is a short-circuit ring such as a copper plate, 6 is a shaft, and 7 is a brake winding.
しかして、三相２極同期発電機の固定子巻線（電機子巻
線）は、第４図に示すように結線されている。第４図中
１ａ＋１ｂ、１ｃにそれぞれ固定子巻線１のＵ相帯、Ｖ
相帯、Ｗ相帯を示す。The stator windings (armature windings) of the three-phase, two-pole synchronous generator are connected as shown in FIG. In Fig. 4, 1a+1b and 1c are the U phase band and V of stator winding 1, respectively.
The phase belt and W phase belt are shown.
次に動作について説明する。三相同期発電機において、
第４図に示すように固定子巻線１に電気角にて１２００
ずれた位置にあるコイル群（Ｕ相帯１ ａ ＊ Ｖ相帯
１ｂ、Ｗ相帯１ｃ）から構成されているが、このコイル
群に固定子コア３に形成されたスロット（図示せず）内
に挿入されている。−万、単相同期発電機に通常巻線の
利用率を高めるために固定子コア６に全スロットの約２
７３のスロット内に固定子巻線１ｔ−挿入し、残りの約
１／３のスロツ）４遊ばせておく。そのために単相同期
発電機を得る一手段として従来は第５図に示すように三
相同期発電機の一相帯を取り除く方法がとられていｆＣ
（図で扛ｖ相帯１ｂｔ−とり除いている）。すなわち、
三相同期発電機の出力にて、Ｕ相帯１ａ−Ｗ相帯１Ｃ間
のみを使用していることになる。Next, the operation will be explained. In a three-phase synchronous generator,
As shown in Fig. 4, the stator winding 1 has an electrical angle of 1200
It is composed of a group of coils (U phase band 1a * V phase band 1b, W phase band 1c) located at shifted positions, and this coil group has a slot (not shown) formed in the stator core 3. is inserted into. - 10,000, about 2 of the total slots in the stator core 6 to increase the utilization of the windings, which is usually used in single-phase synchronous generators.
Insert the stator winding 1t into the slot 73 and leave the remaining 1/3 slot idle. To this end, one way to obtain a single-phase synchronous generator is to remove the single-phase band of a three-phase synchronous generator, as shown in Figure 5.
(In the figure, the V-phase band 1b has been removed). That is,
With the output of the three-phase synchronous generator, only the U-phase band 1a to the W-phase band 1C is used.
ところで、単相同期発電機に負荷が接続されたとなる。By the way, a load is connected to the single-phase synchronous generator.
上式において第一項に回転子と反対方向に同期速度で回
転する起磁力を表わすが、この起磁力は回転子と相帯速
度會持つため、回転子磁極頭部に設けられ１両端を銅板
等の短絡環５にて短絡された制動巻線７に電流が流れ、
はとんど打ち消される。また、上式の第二項に回転子と
同方向に同期速度で回転する起磁力であり回転子との相
対速Ｉｆに零である。In the above equation, the first term represents the magnetomotive force that rotates at a synchronous speed in the opposite direction to the rotor, but since this magnetomotive force has a phase-band speed with the rotor, it is provided at the rotor magnetic pole head and has copper plates at both ends. A current flows through the damper winding 7 short-circuited by the short-circuit ring 5 such as
is almost canceled out. Further, the second term in the above equation is a magnetomotive force that rotates at a synchronous speed in the same direction as the rotor, and is zero at the relative speed If with the rotor.
従来の単相同期発電機に以上のように構成されているの
で１発電機に基本波電流が流れても回転子と反対方向に
同期速度で回転する起磁力（逆相回転磁界）１−発生す
るため、三相同期発電機に比べて制動巻線の寸法（断面
積）を大きくしたり。Since the conventional single-phase synchronous generator is configured as described above, even if a fundamental wave current flows through the generator, the magnetomotive force (negative phase rotating magnetic field) that rotates at a synchronous speed in the opposite direction to the rotor is generated. Therefore, the dimensions (cross-sectional area) of the damper winding are made larger than those of a three-phase synchronous generator.
短絡環の厚みを厚くしなげればならないなどの問題点が
あった。There were problems such as the need to increase the thickness of the shorting ring.
この発明に、上記のような問題点を解消するためになさ
れ友もので、制動巻線の寸法を小さくし、かつ短絡環の
厚みケ軽減できる単相同期発電機金得ること？目的とす
る。What has been accomplished in this invention to solve the above-mentioned problems, and to obtain a single-phase synchronous generator that can reduce the size of the damper winding and reduce the thickness of the short-circuit ring? purpose.
この発明に係る単相同期発電機にその固定子巻線を電気
角にて９０°位相のずれた２つの相帯（コイル群）から
構成したものである。The stator winding of the single-phase synchronous generator according to the present invention is composed of two phase bands (coil groups) that are out of phase by 90 degrees in electrical angle.
この発明における単相同期発電機に電気角にて９００位
相のずれた２つの相帯により固定子巻線全形成すること
にエリ負荷接続時に流れる電流により上記固定子巻線に
発生する起磁力のうち回転子と反対方向に同期速度で回
転する起磁力を軽減またに消滅させるようにする。In the single-phase synchronous generator of this invention, the stator winding is entirely formed by two phase bands that are out of phase by 900 electrical degrees. Of these, the magnetomotive force that rotates at a synchronous speed in the opposite direction to the rotor is reduced or eliminated.
以下、この発明の一実施例を図について説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図に単相２極同期発電機の固定子巻線中示す結線図
であり、図において、１ｄ、１ｅに固定子巻線１の相帯
で、この相帯１ｄ、１ｅｒＬ電気角にて９０°位相のず
れた位置に配置されている。なお、この単相２極同期発
電機の出力に、２つの相帯エリ個々に取り出すことにな
る。Fig. 1 is a wiring diagram showing the stator winding of a single-phase, two-pole synchronous generator. They are placed at positions 90° out of phase. Note that the output of this single-phase two-pole synchronous generator is taken out individually from two phase band areas.
矢に動作について説明する。Explain the action to the arrow.
第１図に示した固定子巻線１の２つの相帯１ｄ。Two phase bands 1d of the stator winding 1 shown in FIG.
１ｅにバランスした負荷が接続されたとぎ、それぞれの
巻線には、大きさが等しく９００位相のずれた電流が流
れる。このとき各巻線により作られるｃｏｓ（ωｔ−９
Ｑ ）３１ｆｌ（θ−９０）〕で表現される。これ金族
わち、回転子と反対方向に同期速度で回転する起磁力は
なくなり、回転子と同方向に同期速度で回転する起磁力
のみが存在することになる。但し。When a balanced load is connected to 1e, currents of equal magnitude and 900 degrees out of phase flow through each winding. At this time, cos(ωt-9
Q)31fl(θ-90)]. In this case, there is no magnetomotive force that rotates at a synchronous speed in the opposite direction to the rotor, and only a magnetomotive force that rotates at a synchronous speed in the same direction as the rotor exists. however.
負荷アンバランス時は、従来の単相発電機と同様回転子
と反転１同に回転する起磁力が発生するが、その大きさ
に、最大で従来の単相発電機の１／２ Ｋしかならない
。When the load is unbalanced, a magnetomotive force is generated that rotates the rotor and the rotor at the same time as in a conventional single-phase generator, but its maximum magnitude is only 1/2 K of that of a conventional single-phase generator. .
以上のように、この発明によれば、単相同期発電機の固
定子巻線全電気角にて９０°位相のずれた相帯により構
成したので、回転子磁極頭部に設けられる制動巻線の寸
法及び短絡環の厚みを軽減でき、１ｆＣ安価なものが得
られる効果がある。As described above, according to the present invention, since the stator winding of a single-phase synchronous generator is configured with phase bands that are out of phase by 90 degrees in the entire electrical angle, the damping winding provided at the rotor magnetic pole head is This has the effect of reducing the size of the short-circuit ring and the thickness of the short-circuit ring, resulting in an inexpensive 1fC product.
第１図はこの発明の一実施例にょる２極単相同期発電機
の固定子巻線を示す結線図、第２図は同期発電機の軸方
向に沿って切欠した断面図、第３図は回転子部分を示す
断面図、第４図に２極三相同期発電機の固定子巻線中示
す結線図、第５図は従来の２極単相同期発電機の固定子
巻線を示す結線図である。
１に固定子巻線、１ａ、１ｂ、１ｃは固定子巻線中のＵ
相帯、Ｖ相帯、Ｗ相帯、１ｄｉ固定子巻線中の相帯ａ１
ｅに相帯１ｄとに電気角にて９０’は軸、７に制動巻線
。
第４０
第６図Fig. 1 is a wiring diagram showing the stator winding of a two-pole single-phase synchronous generator according to an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the axial direction of the synchronous generator, and Fig. 3 is a sectional view showing the rotor part, Fig. 4 is a wiring diagram showing the stator winding of a two-pole three-phase synchronous generator, and Fig. 5 is a diagram showing the stator winding of a conventional two-pole single-phase synchronous generator. It is a wiring diagram. 1 is the stator winding, 1a, 1b, 1c are U in the stator winding.
Phase band, V phase band, W phase band, phase band a1 in 1di stator winding
90' is the shaft, and 7 is the damping winding. 40 Figure 6
Claims (1)
いて、上記固定子巻線を電気角にて９０°位相のずれた
相帯にて形成したことを特徴とする単相同期発電機。A single-phase synchronous generator in which the stator winding is a single-phase winding, characterized in that the stator winding is formed of phase bands that are out of phase by 90 degrees in electrical angle. Generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12078987A JPS63287346A (en) | 1987-05-18 | 1987-05-18 | Single-phase synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12078987A JPS63287346A (en) | 1987-05-18 | 1987-05-18 | Single-phase synchronous generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63287346A true JPS63287346A (en) | 1988-11-24 |
Family
ID=14795039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12078987A Pending JPS63287346A (en) | 1987-05-18 | 1987-05-18 | Single-phase synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63287346A (en) |
-
1987
- 1987-05-18 JP JP12078987A patent/JPS63287346A/en active Pending
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