JPS6225849A - Self-excited type generator - Google Patents
Self-excited type generatorInfo
- Publication number
- JPS6225849A JPS6225849A JP60165315A JP16531585A JPS6225849A JP S6225849 A JPS6225849 A JP S6225849A JP 60165315 A JP60165315 A JP 60165315A JP 16531585 A JP16531585 A JP 16531585A JP S6225849 A JPS6225849 A JP S6225849A
- Authority
- JP
- Japan
- Prior art keywords
- output
- winding
- voltage
- magnetic path
- wound
- 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
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- Control Of Eletrric Generators (AREA)
- Synchronous Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
艮権光互
本発明は泊励弐発電機に係り、特に自動電圧調整器（Ａ
ＶＲ）付きの集中巻型による自励式発電機に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power generator, particularly an automatic voltage regulator (A
This invention relates to a concentrated winding type self-excited generator with VR).
盗】Ｕ１権
従来、第４図に示すように、回転子１に対して偏移させ
た固定子鉄心２部分における同一側に出力巻線３と励磁
巻線４とを同相になるように集中巻きにした自励式発電
機が周知となっているが、このような構造のものにあっ
ては、負荷電流の増減による出力電圧の変動が比較的大
きくなってしまっている。特にこのような自励式発電機
をエンジンにより駆動する場合、負荷変動によってエン
ジン自体の回転数が変動してしまうという影響が相乗し
て出力電圧の変動が大きくなる。U1 right Conventionally, as shown in FIG. 4, the output winding 3 and the excitation winding 4 were concentrated on the same side of the stator core 2 portion shifted relative to the rotor 1 so as to be in phase. Although self-excited generators with wound coils are well known, such structures have relatively large fluctuations in output voltage due to increases and decreases in load current. Particularly, when such a self-excited generator is driven by an engine, variations in the engine's rotational speed due to load variations are compounded, resulting in large variations in output voltage.
したがってこのような自励式発電機において、第５図に
示すように、ＡＶＲ６により発電機の界磁巻線５に供給
する励磁電流を発電機の出力電圧Ｖｏに応じてフィード
バック制御することにより出力電圧Ｖｏの安定化を図る
ようにする場合、第６図に示すように、負荷が増大する
と出力電圧ＶＯが急激に低下する特性をもっているため
、ＡＶＲ６自体の電源電圧も低下してしまうものになっ
ている。Therefore, in such a self-excited generator, as shown in FIG. 5, the output voltage is adjusted by feedback-controlling the excitation current supplied to the field winding 5 of the generator by the AVR 6 according to the output voltage Vo of the generator. When trying to stabilize Vo, as shown in Figure 6, the output voltage VO has the characteristic of dropping rapidly when the load increases, so the power supply voltage of the AVR6 itself will also drop. There is.
そのため従来では、回転子１に補助励磁用のマグネット
を埋設したり、駆動エンジン側における点火用等の磁石
発電機の出力の一部をとり出して他励磁源として加え、
それにより第６図中点線で示すような特性に改善してＡ
ＶＲの電源をある程度補償するようにしているが、その
対策が充分なものとはなっていない。Therefore, in the past, a magnet for auxiliary excitation was buried in the rotor 1, or a part of the output of a magnet generator for ignition on the drive engine side was taken out and added as another excitation source.
As a result, the characteristics are improved to those shown by the dotted line in Figure 6, and A
Although efforts are being made to compensate the VR power supply to some extent, the countermeasures are not sufficient.
また従来、第７図に示すように、負荷時における電機子
反作用による主磁束の減磁の影響を受けることがないよ
うに、固定子鉄心２部分に回転子１を挟んで出力巻線３
が巻装されている側とは反対側に第２の磁路を並設し、
その第２の磁路部分に出力巻線３と１８０°の位相差を
もって励磁巻線４を集中的に巻装させて出力巻線に流れ
る負荷電流に応じた発生磁束による誘起電圧をとり出す
ようにしたものが開発されている（実開昭５９−１５５
８７１号公報参照）。Conventionally, as shown in FIG. 7, the rotor 1 is sandwiched between the stator core 2 so that the output winding 3 is not affected by demagnetization of the main magnetic flux due to armature reaction during load.
A second magnetic path is installed in parallel on the side opposite to the side on which is wound,
The excitation winding 4 is intensively wound around the second magnetic path portion with a phase difference of 180° from the output winding 3, and an induced voltage due to the magnetic flux generated according to the load current flowing through the output winding is extracted. A new version was developed that was
(See Publication No. 871).
しかしこのようなものでは、前述とは逆に無負荷時にな
ると鉄心断面積が小さな励磁巻線４部分にはほとんど磁
束が通らなくなり、第８図に示すように、ＡＶＲ６を用
いて出力電圧ｖＯの安定化を図る場合、無負荷時にＡＶ
Ｒ６の電源電圧が低下して回転子１への界磁電流供給に
支障をきたすおそれが有る。However, in such a device, contrary to the above, when there is no load, almost no magnetic flux passes through the excitation winding 4 portion, which has a small cross-sectional area of the iron core, and as shown in Fig. 8, the output voltage vO is For stabilization, AV at no load
There is a risk that the power supply voltage of R6 will drop and the supply of field current to the rotor 1 will be hindered.
旦煎
本発明は以上の点を考慮してなされたもので、無負荷時
、過負荷時の如何にかかわらず常にＡＶＲの電源電圧を
確保して自動電圧調整機能を充分に発輝することができ
るようにした集中巻型の自励式発電機を提供するもので
ある。The present invention has been made in consideration of the above points, and it is possible to always ensure the power supply voltage of the AVR regardless of whether it is under no load or overload, so that the automatic voltage adjustment function can fully shine. The present invention provides a concentrated winding type self-excited generator that enables this.
１腹
本発明はその目的達成のため、固定子鉄心における第１
の磁路部分に出力巻線と第１の励磁巻線とを同相になる
ように集中巻きに巻装するとともに、第１の磁路に対し
て並列になるように設けられた第２の磁路部分に出力巻
線とは１８０°の位相差をもって第２の励磁巻線を集中
的に巻装させ、第１の励磁巻線出力と第２の励磁巻線出
力とを重畳させてＡＶＲに加えるようにしている。1. In order to achieve the object, the present invention provides the first
The output winding and the first excitation winding are wound in concentrated windings in the magnetic path part so that they are in phase, and the second magnetic field is provided in parallel with the first magnetic path. A second excitation winding is centrally wound around the output winding with a phase difference of 180° from the output winding, and the first excitation winding output and the second excitation winding output are superimposed to generate an AVR. I try to add it.
以下、添付図面を参照して本発明の一実施例について詳
述する。Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.
本発明による自励式発電機にあっては、第１図に示すよ
うに、固定子鉄心２における第１の磁路７部分に出力巻
線３と第１の励磁巻線４とを同相になるように集中巻き
に巻装するとともに、第１の磁路７に対して回転子ｌを
挟んで対向するように並列に設けられた第２の磁路８部
分に出力巻線とは１８０°の位相差をもって第２の励磁
巻線９を集中的に巻装させ、第１の励磁巻線出力を整流
器ＲＥＦＩにより余波整流し、第２の励磁巻線出力を整
流器ＲＥＦ２により全波整流し、それら各整流出力をコ
ンデンサＣにより平滑した電圧を重畳させてＡＶＲ６に
与え、そのＡＶＲ６によって出力電圧ｖＯが一定になる
ように制御されたをブラシＢを介して界磁巻線５に与え
るようにしている。なお第２の励磁巻線９は、充分な励
磁電力が得られるように過剰気味となるようにその仕様
を決めることができる。無負荷時においては、主磁束Φ
０は、界磁巻線５に界磁電流を流すことによって固定子
鉄心２に発生する磁束であり、第２の励磁巻線９が巻装
されている第２の磁路８の断面積が出力巻線３および第
１の励磁巻Ｉａ４が巻装されている第１の磁路７のそれ
よりも小さくて磁気抵抗が大きいために、は、とんと第
２の磁路８部分には通らない。In the self-excited generator according to the present invention, as shown in FIG. The output winding is wound in a concentrated winding manner as shown in FIG. The second excitation winding 9 is wound intensively with a phase difference, the output of the first excitation winding is subjected to rectification by the rectifier REFI, the output of the second excitation winding is subjected to full-wave rectification by the rectifier REF2, and these Each rectified output is superimposed with a voltage smoothed by a capacitor C and applied to the AVR 6, and the AVR 6 controls the output voltage vO to be constant and applies it to the field winding 5 via a brush B. . Note that the specifications of the second excitation winding 9 can be determined so that the excitation power is slightly excessive so as to obtain sufficient excitation power. At no load, the main magnetic flux Φ
0 is the magnetic flux generated in the stator core 2 by passing a field current through the field winding 5, and the cross-sectional area of the second magnetic path 8 around which the second excitation winding 9 is wound is Since the magnetic resistance is smaller than that of the first magnetic path 7 around which the output winding 3 and the first excitation winding Ia4 are wound, and the magnetic resistance is larger, it does not pass through the second magnetic path 8 portion. .
しかしてこのように構成されたものでは、負荷時に、第
２図に示すように、出力巻線３に負荷ｌＯを接続すると
、そのときの出力電流に応じて固定子鉄心２に磁束Φｒ
が電機子反作用として主磁。However, with this configuration, when a load lO is connected to the output winding 3 as shown in FIG. 2, a magnetic flux Φr is applied to the stator core 2 according to the output current at that time.
is the main magnet as an armature reaction.
束Φ０を打ち消す方向に発生する。It occurs in a direction that cancels out the bundle Φ0.
その際、Ｖｏ＝−Ｕ−ｄΦ／ｄｔの式から（Φは界磁巻
線５により回転子１に発生する磁束）、出力巻線３下に
おける磁束はΦ０に維持されていなければ出力電圧Ｖｏ
を保つことができなくなる。At that time, from the formula Vo=-U-dΦ/dt (Φ is the magnetic flux generated in the rotor 1 by the field winding 5), if the magnetic flux under the output winding 3 is not maintained at Φ0, the output voltage Vo
become unable to maintain
したがって、負荷電流が増大するほど電機子反作用が大
きくなり、その分界磁巻線５に供給する電流量を増大さ
せる必要がある。Therefore, as the load current increases, the armature reaction becomes larger, and it is necessary to increase the amount of current supplied to the field winding 5.
しかして本発明によるものでは、負荷電流に応じて発生
した磁束Φｒが第２の磁路８部分に通り。However, in the present invention, the magnetic flux Φr generated according to the load current passes through the second magnetic path 8 portion.
それにより負荷電流に比例して第２の励磁巻ｍ９に誘起
され、かつ整流器ＲＥＦ２により全波整流された出力と
、第１の磁路７において電機子反作用により減磁された
磁束（Φ０−Φｒ）に応じて第１の励磁巻、ｓ４に誘起
され、かつ整流器ＲＥＦ２により余波整流された出力と
が重畳されてＡＶＲ６に与えられ、充分な電源電圧のも
とでＡＶＲ６による自動電圧調整がなされて出力電圧Ｖ
ｏを一定に保持させるべく制御された電流が界磁巻線５
に与えられるようになる。As a result, an output is induced in the second excitation winding m9 in proportion to the load current and full-wave rectified by the rectifier REF2, and a magnetic flux (Φ0-Φr ), the output induced in the first excitation winding s4 and the output rectified by the rectifier REF2 are superimposed and given to the AVR6, and automatic voltage adjustment is performed by the AVR6 under a sufficient power supply voltage. Output voltage V
A current controlled to keep o constant flows through the field winding 5.
will be given to
その際、特に負荷が大きくなった場合には、第１の励磁
巻線４の誘起電圧がほとんど零になり。At this time, especially when the load becomes large, the induced voltage in the first excitation winding 4 becomes almost zero.
その分食荷電流の増大にしたがって大きな電圧が誘起さ
れる第２の励磁巻線９の出力に応じた出力が主としてＡ
ＶＲ６に与えられるが、それによってＡＶＲ６の電源電
圧が充分確保されるようになっている。Accordingly, the output corresponding to the output of the second excitation winding 9 where a large voltage is induced as the eroding current increases is mainly A.
This voltage is applied to VR6, thereby ensuring a sufficient power supply voltage for AVR6.
このように負荷が急激に増大するようなことがあっても
、その増大分に応じたＡＶＲ６の電源電圧の確保が第２
の励磁巻４１９の出力によって充分補償されるようにな
る。Even if the load suddenly increases like this, the second step is to ensure the AVR6 power supply voltage according to the increase.
is sufficiently compensated by the output of the excitation winding 419.
また無負荷時には、第３図に示すように、外部からの初
期励磁または回転子１の残°留磁気を利用した自己励磁
によって無負荷電圧Ｖ ｏ ’ （Ｖ ｏ ’＝−Ｕ
−ｄΦｏ’／ｄｔ）が立ち上ると、そのとき第１の磁路
７に発生する主磁束Φ０′により第１の励磁巻ＮｊＡ４
に誘起される出力でＡＶＲ６により制御をかけながら、
そのＡＶＲ６の出力電流を界磁巻！１５に供給する。そ
の際、前述のように第２の磁路８には主磁束Φ０′がほ
とんど通らず、したがって第２の励磁巻線９は励磁源と
はならないが、この場合には第１の励磁巻線４の出方電
圧のみによって無負荷電圧Ｖ ｏ ’の保持を行なわせ
るだけのＡＶＲ６の電源電圧を確保されるようになる。In addition, when there is no load, as shown in Fig. 3, the no-load voltage Vo'(Vo'=-U
-dΦo'/dt) rises, the main magnetic flux Φ0' generated in the first magnetic path 7 at that time causes the first excitation winding NjA4
While controlling by AVR6 with the output induced by
Field wind the output current of that AVR6! 15. At that time, as mentioned above, almost no main magnetic flux Φ0' passes through the second magnetic path 8, so the second excitation winding 9 does not serve as an excitation source, but in this case, the first excitation winding The power supply voltage of the AVR 6, which is sufficient to maintain the no-load voltage V o ', can be secured only by the output voltage of the output voltage V o '.
１ｕ長
以上、本発明による自励式発電機にあっては、固定子鉄
心における第１の磁路部分に出力巻線と第１の励磁巻線
とを同相になるように集中巻きに巻装するとともに、第
１の磁路に対して並列になるように設けられた第２の磁
路部分に出力巻線とは１８０°の位相差をもって第２の
励磁巻線を集中的に巻装させ、第１の励磁巻線出力と第
２の励磁巻線出力とを重畳させて出力電圧を一定に保持
すべく界磁電流を調整する自動電圧調整器に与えるよう
にしたもので、無負荷時、過負荷時の如何にかかわらず
常に出力電圧を一定に保持させるべくＡＶＲの電源電圧
を確保することができ、またその電源電圧自体が安定す
るために、安定した自動電圧調整機能を充分に発輝する
ことができるという優れた利点を有している。In the self-excited generator according to the present invention with a length of 1 μ or more, the output winding and the first excitation winding are wound in concentrated winding in the first magnetic path portion of the stator core so that they are in phase. At the same time, a second excitation winding is intensively wound around a second magnetic path portion provided in parallel with the first magnetic path with a phase difference of 180° from the output winding, The first excitation winding output and the second excitation winding output are superimposed and applied to an automatic voltage regulator that adjusts the field current to keep the output voltage constant. The AVR power supply voltage can be secured to keep the output voltage constant regardless of overload conditions, and since the power supply voltage itself is stable, the stable automatic voltage adjustment function is fully utilized. It has the great advantage of being able to
第１図は本発明による自励式発電機の一実施例を示す電
気的結線図、第２図は同実施例における負荷時の磁束発
生状態を示す図、第３図は同実施例における無負荷時の
磁束発生状態を示す図、第４図は従来の集中巻線型の自
励式発電機の構造を示す図、第５図はその電気系統の回
路構成図、第６図はその負荷時における出力電圧特性を
示す図、第７図は従来の他の集中巻線型の自励式発電機
の構造を示す図、第８図はその電気系統の回路構成図で
ある。
１・・・回転子 ２・・・固定子鉄心 ３・・・出力巻
線 ４・・・第１の励磁巻Ｍ５・・・界磁巻線 ６・・
・ＡＶＲ７・・・第１の磁路 ８・・・第２の磁路 ９
・・・第２の励磁巻線 １０・・・負荷Fig. 1 is an electrical wiring diagram showing an embodiment of the self-excited generator according to the present invention, Fig. 2 is a diagram showing the state of magnetic flux generation under load in the same embodiment, and Fig. 3 is an unloaded diagram in the same embodiment. Figure 4 is a diagram showing the structure of a conventional concentrated winding type self-excited generator, Figure 5 is a circuit diagram of its electrical system, and Figure 6 is its output under load. FIG. 7 is a diagram showing the voltage characteristics, FIG. 7 is a diagram showing the structure of another conventional concentrated winding type self-excited generator, and FIG. 8 is a circuit configuration diagram of the electrical system. 1... Rotor 2... Stator core 3... Output winding 4... First excitation winding M5... Field winding 6...
・AVR7...First magnetic path 8...Second magnetic path 9
...Second excitation winding 10...Load
Claims (1)
励磁巻線とを同相になるように集中巻きに巻装するとと
もに、第１の磁路に対して並列になるように設けられた
第２の磁路部分に出力巻線とは１８０°の位相差をもっ
て第２の励磁巻線を集中的に巻装させ、第１の励磁巻線
出力と第２の励磁巻線出力とを重畳させて、出力電圧を
一定に保持すべく界磁電流を調整する自動電圧調整器に
与えるように構成した自励式発電機。An output winding and a first excitation winding are wound in a concentrated winding in a first magnetic path portion of the stator core so that they are in phase, and are arranged in parallel to the first magnetic path. The second excitation winding is intensively wound around the second magnetic path portion with a phase difference of 180° from the output winding, and the output of the first excitation winding and the output of the second excitation winding are A self-excited generator configured to superimpose the voltage and feed it to an automatic voltage regulator that adjusts the field current to maintain a constant output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60165315A JPH0691724B2 (en) | 1985-07-26 | 1985-07-26 | Self-excited generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60165315A JPH0691724B2 (en) | 1985-07-26 | 1985-07-26 | Self-excited generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6225849A true JPS6225849A (en) | 1987-02-03 |
| JPH0691724B2 JPH0691724B2 (en) | 1994-11-14 |
Family
ID=15809993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60165315A Expired - Fee Related JPH0691724B2 (en) | 1985-07-26 | 1985-07-26 | Self-excited generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0691724B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104772U (en) * | 1984-12-14 | 1986-07-03 |
-
1985
- 1985-07-26 JP JP60165315A patent/JPH0691724B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61104772U (en) * | 1984-12-14 | 1986-07-03 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0691724B2 (en) | 1994-11-14 |
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