JPS6364546A - Current collector of rotary electric machine - Google Patents
Current collector of rotary electric machineInfo
- Publication number
- JPS6364546A JPS6364546A JP20370186A JP20370186A JPS6364546A JP S6364546 A JPS6364546 A JP S6364546A JP 20370186 A JP20370186 A JP 20370186A JP 20370186 A JP20370186 A JP 20370186A JP S6364546 A JPS6364546 A JP S6364546A
- Authority
- JP
- Japan
- Prior art keywords
- phase
- current collector
- phases
- neutral point
- current
- 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
Links
- 230000007935 neutral effect Effects 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 12
- 230000005284 excitation Effects 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract 3
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 abstract description 10
- 239000012212 insulator Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000020169 heat generation Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000006698 induction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、周波数変換装置ｔコより二次励磁周波数を可
変として速度制御をする回転電機に係り、特に中性点用
の集電環を備えた可変速発電機に好適な集電装置に関す
る。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a rotating electrical machine whose speed is controlled by varying the secondary excitation frequency from a frequency converter, and particularly to a rotating electrical machine that controls the speed of a rotating electrical machine by changing the secondary excitation frequency using a frequency converter. The present invention relates to a current collector suitable for a variable speed generator equipped with a variable speed generator.
従来、巻線形回転電機の二次側励磁−電流をサイリスタ
を使用した周波数変換装置（例えば、サイクロコンバー
タのような装置）により供給する集電装置では、三相電
力を供給するために各層に対応した集電環（スリップリ
ング）のみを取付けていた。即ち１例えば、第２図に示
すように、三相誘導機であればＵ、Ｖ、Ｗの各相に対し
、一つの集電環を準備していた。しかし、サイリスタを
使用した周波数変換装置２４を用いて可変周波の交流二
次電流を供給する場合、例えば、Ｕ相において電流が正
から負に切換わる際、サイリスタの性能上、無電流期間
をおかざるを得ず、他の■相またはＷ相が歪むことにな
り、これが系統に悪い影響を与えることが最近判明して
おり、この対策として第３図に示すように、二次巻線２
２の中性魚を引き出し、この中性点にも集電環を準備す
ることにより、Ｕ相の無電流期間でも、残りの■相。Conventionally, in a current collector that supplies the secondary excitation current of a wound rotary electric machine by a frequency conversion device (e.g., a device such as a cycloconverter) using a thyristor, a power collector is used to supply three-phase power to each layer. Only the current collector ring (slip ring) was installed. For example, as shown in FIG. 2, in the case of a three-phase induction machine, one current collection ring was prepared for each of the U, V, and W phases. However, when supplying a variable frequency AC secondary current using the frequency conversion device 24 using a thyristor, for example, when the current switches from positive to negative in the U phase, it is preferable to use a no-current period due to the performance of the thyristor. As a result, the other ■phase or W phase is inevitably distorted, and it has recently been found that this has a negative effect on the grid.As a countermeasure, as shown in Figure 3, the secondary winding 2
By pulling out the neutral fish of No. 2 and preparing a current collecting ring at this neutral point, even during the no-current period of the U phase, the remaining ■ phase can be maintained.
Ｗ相のサイリスタは、おのおの、中性点を経由して電流
を流せるようにし、正弦波交流を流せるようにする方法
が考案されている。しかし、中性点を引出し集電環を追
加した場合、その分力−ボンダストの発生量が増加し、
かつ、摺動面の発生熱量が増大する事になり集電装置全
体の性能を低下させる欠点があった。A method has been devised for each W-phase thyristor to allow current to flow through the neutral point, thereby allowing sinusoidal alternating current to flow. However, when the neutral point is drawn out and a current collector ring is added, the amount of force and bond dust generated increases.
In addition, the amount of heat generated on the sliding surface increases, resulting in a disadvantage that the performance of the entire current collector is degraded.
尚、第２図に示すような巻線形誘導機の集電装！！２１
は、技術評論社発行のサイリスタとパワーエレクトロニ
クス（平山勝己著）第９章などに示される。２３は一次
巻線、２５は系統である。In addition, the current collector of a wound induction machine as shown in Figure 2! ! 21
This is shown in Chapter 9 of Thyristors and Power Electronics (written by Katsumi Hirayama) published by Gijutsu Hyoronsha. 23 is a primary winding, and 25 is a system.
上記従来技術は、中性点相の定常状態での電流値や電圧
値について考慮がされておらず、ブラシから発生するカ
ーボンダストや摺動面における発生熱の他相への影響に
ついて問題があった。The above conventional technology does not take into consideration the current value and voltage value in the steady state of the neutral point phase, and there are problems with carbon dust generated from the brushes and the effect of heat generated on the sliding surface on other phases. Ta.
本発明の目的は、中性点相の集電環のａ適位置を与え、
カーボンダストや発生熱の影響が少ない集電装置を提供
することｔこある。The purpose of the present invention is to provide a suitable position of the current collecting ring of the neutral point phase,
It is an object of the present invention to provide a current collector that is less affected by carbon dust and generated heat.
上記目的は、中性点相の集電環を他の相のどの集電環よ
りも軸方向の下方に配置することにより達成される。The above object is achieved by arranging the neutral point phase current collection ring axially lower than any of the other phase current collection rings.
定常運転時における中性点相の電流値は他の各相の１／
ｉであり、電圧値は約１７１０程度である。そのため、
他の各相に比べて電流が少ないことから摺動時の発生熱
は少なく、また電圧値が低いことがら短線に対しても裕
度が大である。但し、相間短線トラブルが中性点相と他
の相に発生すると、他の相と同等な大きさの電流が流れ
るため、ブラシ数量は他の各相と同様としであるため、
回転によるカーボンダストの発生量は他の各相と同等と
言える。During steady operation, the current value of the neutral point phase is 1/1 of that of each other phase.
i, and the voltage value is about 1710. Therefore,
Since the current is small compared to other phases, less heat is generated during sliding, and the voltage value is low, so there is a large tolerance even for short wires. However, if a short wire problem between phases occurs between the neutral point phase and other phases, the same amount of current will flow as in the other phases, so the number of brushes will be the same as for each other phase.
It can be said that the amount of carbon dust generated due to rotation is equivalent to that of each other phase.
このような中性点相を他の各相より下方に設置したこと
により、他の各相からのカーボンダストや発生熱の影響
を他のどの相よりも強く受けるが上述したように、定常
状態では電流値・電圧値に裕度があり、この裕度分と相
殺され他の各相と同等の性能が維持できる。By placing such a neutral point phase below the other phases, it is more affected by carbon dust and generated heat from the other phases than any other phase, but as mentioned above, the steady state In this case, there is a margin in the current value and voltage value, and this margin can be offset to maintain the same performance as each other phase.
［実施例〕
以下、本発明の一実施例を第１図により説明する。交流
二次励磁巻線からのＵ、Ｖ、Ｗ、相及び中性点相のＮ相
を軸方向に順次配列し、Ｎ相での集電環６をＵ、Ｖ、Ｗ
相の集電環３，４，５の最下段にｍｌしたもので、各集
電環の冷部及びカーボンダストの排出ルートは上方がら
給気し、下方よりファン１１にて排出する。[Example] Hereinafter, an example of the present invention will be described with reference to FIG. The U, V, W phases from the AC secondary excitation winding and the N phases of the neutral point phase are arranged in sequence in the axial direction, and the current collecting ring 6 in the N phase is connected to the U, V, W phases from the AC secondary excitation winding.
ml is placed in the lowest stage of the current collecting rings 3, 4, and 5 of each phase, and the cold part of each current collecting ring and the exhaust route for carbon dust are supplied with air from above and discharged from below by a fan 11.
本実施例によれば、Ｕ、Ｖ、Ｗ相で発生したカーボンダ
ストや発生熱量の合成がＮ相に加えられるが、Ｎ相の電
流及び電圧に対する裕度が他のＵ。According to this embodiment, a combination of carbon dust and generated heat generated in the U, V, and W phases is added to the N phase, but the tolerance for the current and voltage of the N phase is different from that of the other U.
ｖ、Ｗ相よりはるかに高いため、最下段にＵ、Ｖ。Since it is much higher than the v and W phases, U and V are placed at the bottom.
Ｗ相のいずれかを設置した構造に比べて安定した集電装
置が得られる９図中１は回転軸、２は絶縁体、フないし
１０はブラシである。A more stable current collector can be obtained than a structure in which one of the W phases is installed.In Figure 9, 1 is a rotating shaft, 2 is an insulator, and F to 10 are brushes.
本発明によれば、最もカーボンダストが多く染まり、か
つ、熱量の多い部分の集電環に、電流・電圧に対し裕度
の高い集電環を配置できるので、性能的に安定した集電
装置が得られる。According to the present invention, it is possible to arrange a current collection ring with a high tolerance for current and voltage in the part where the most amount of carbon dust is stained and the amount of heat is the most, so the current collection device is stable in terms of performance. is obtained.
第１図は本発明の一実施例を示す集電装置の縦断面図、
第２図及び３図は、従来の巻線形誘導機の系統図である
。
３．４，５，６・・・集電環、２１・・・集電装置、２
２、・・二次巻線、２３・・・一次巻線、２４・・・周
波数変換装巴。
、／′−
代理人 弁理士 小川勝男” ｊ＋’ｌ ｊ−□□が
第 １ 図
／″
ｌ・・回転飾
５・・ ・
６ ・・
９・・ ７
／Ｑ・・ 今
ｔｌ ファン
秦 ２ 国
２１・・集電捉！
ｚ２・・・ニ ン〉＜、 巻線
Ｚ５−・永尉し。FIG. 1 is a longitudinal sectional view of a current collector showing an embodiment of the present invention;
FIGS. 2 and 3 are system diagrams of conventional wound induction machines. 3.4, 5, 6... Current collector ring, 21... Current collector, 2
2...Secondary winding, 23...Primary winding, 24...Frequency conversion device. ,/'- Agent Patent Attorney Katsuo Ogawa"j+'l j-□□ is the first figure/"l... Rotary decoration 5... 6... 9... 7 /Q... Now tl Fan Qin 2 country 21...Current capture! Z2...nin〉<, winding Z5-・long.
Claims (1)
サイリスタを使用した周波数変換装置を介して交流二次
励磁される巻線形回転電機で、前記周波数変換装置より
交流二次励磁電力を前記二次巻線に供給するための集電
環に中性点用の一相分を備えたものにおいて、 前記中性点用の集電環を他のどの相の前記集電環よりも
下方に配設した事を特徴とする回転電機の集電装置。 ２、特許請求の範囲第１項において、 冷却風を上から下に流し、前記冷却風の出口を他のどの
相の前記集電環より前記中性点用集電環の近くとした事
を特徴とする回転電機の集電装置。[Scope of Claims] 1. A wound rotary electric machine comprising a primary winding and a secondary winding, the secondary winding being subjected to AC secondary excitation via a frequency conversion device using a thyristor; In the current collector ring for supplying AC secondary excitation power from the converter to the secondary winding, one phase for the neutral point is provided, and the current collector ring for the neutral point is connected to any other one. A current collector for a rotating electrical machine, characterized in that it is disposed below the current collector ring of a phase. 2. In claim 1, the cooling air flows from top to bottom, and the outlet of the cooling air is located closer to the neutral point current collector ring than the current collector ring of any other phase. Characteristic current collector for rotating electrical machines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61203701A JPH0728515B2 (en) | 1986-09-01 | 1986-09-01 | Current collector for rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61203701A JPH0728515B2 (en) | 1986-09-01 | 1986-09-01 | Current collector for rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6364546A true JPS6364546A (en) | 1988-03-23 |
| JPH0728515B2 JPH0728515B2 (en) | 1995-03-29 |
Family
ID=16478417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61203701A Expired - Lifetime JPH0728515B2 (en) | 1986-09-01 | 1986-09-01 | Current collector for rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728515B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016054637A (en) * | 2010-10-08 | 2016-04-14 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Laminated sheet winding |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883975U (en) * | 1981-11-30 | 1983-06-07 | 株式会社明電舎 | Brush powder adhesion detection device for wound induction motors |
-
1986
- 1986-09-01 JP JP61203701A patent/JPH0728515B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5883975U (en) * | 1981-11-30 | 1983-06-07 | 株式会社明電舎 | Brush powder adhesion detection device for wound induction motors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016054637A (en) * | 2010-10-08 | 2016-04-14 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Laminated sheet winding |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728515B2 (en) | 1995-03-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |