JPS5815449A - Shaft generating device - Google Patents

Shaft generating device

Info

Publication number
JPS5815449A
JPS5815449A JP56111418A JP11141881A JPS5815449A JP S5815449 A JPS5815449 A JP S5815449A JP 56111418 A JP56111418 A JP 56111418A JP 11141881 A JP11141881 A JP 11141881A JP S5815449 A JPS5815449 A JP S5815449A
Authority
JP
Japan
Prior art keywords
generator
stator
shaft
rotor
revolutions
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
Application number
JP56111418A
Other languages
Japanese (ja)
Inventor
Kunio Imai
邦夫 今井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IHI Corp
Original Assignee
IHI Corp
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 IHI Corp filed Critical IHI Corp
Priority to JP56111418A priority Critical patent/JPS5815449A/en
Publication of JPS5815449A publication Critical patent/JPS5815449A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

PURPOSE:To always obtain generating power with a fixed frequency by a method wherein a stator is rotated by other driving source so that the number of relative revolutions may become the number of synchronous revolutions when the rotor of a generator is rotated by a driving shaft varying the number of revolutions. CONSTITUTION:When the rotor 19b of an AC generator 19 is driven by a driving shaft varying the number of revolutions like a propeller driving shaft 10, the number of relative revolutions of the rotor 19b and the stator 19a is formed to be the number of synchronous revolutions by rotating the stator 19a of the AC generator 19 by other driving source 10 like a DC motor. In this way, power with a fixed frequency can be obtained from the AC generator 19 in spite of a variation in the number of revolutions of the propeller shaft 10 and energy can efficiently convert to AC power.

Description

【発明の詳細な説明】 本発明は船舶のプロペラ軸のように回転変動する駆動軸
の機械動力を利用して発電する軸発電装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shaft power generator that generates electricity by using the mechanical power of a rotating drive shaft such as a propeller shaft of a ship.

従来この種の軸発電装置は、第１図に示すよう疋プロペ
ラ軸１にギヤ２．３からなる増速機を設け、原動機４か
らプロペラ軸１１増速槻ヲ介して加わる駆動力によって
直接交流発電機５を駆動するように構成されている。し
たがって、プロペラ軸１の速度変動による影響を受ける
ため、交流発電機５はプロペラ軸１の限定さｎた回転数
範囲以外では使用することができなかった。Conventionally, this type of shaft power generator has been equipped with a speed increaser consisting of gears 2.3 on the propeller shaft 1 as shown in FIG. It is configured to drive a generator 5. Therefore, since it is affected by speed fluctuations of the propeller shaft 1, the alternator 5 cannot be used outside the limited rotational speed range of the propeller shaft 1.

また、プロペラ軸１の速度変動による影響を除去するた
めに、第２図に示すようにプロペラ軸１に交流発電機５
を直結し、ここで原動機４からプロペラ＠１（交流発電
機軸）に加わる駆動力によって発電し、発電した交流電
流を整流器６で直流電流に変換し、この直流電流を直流
モータ７および交流発電機５によって再び交流電流に変
換するようにした軸発電装置がある。しかし、かかる軸
発電装置は、装置が犬がかりになシ総合コストが高く、
また直流電流を交流電流に変換する過程を経るため、エ
ネルギ変換効率がよくないという欠点があった。In addition, in order to eliminate the influence of speed fluctuations of the propeller shaft 1, an alternating current generator 5 is connected to the propeller shaft 1 as shown in FIG.
Here, power is generated by the driving force applied from the prime mover 4 to the propeller@1 (alternating current generator shaft), the generated alternating current is converted to direct current by the rectifier 6, and this direct current is passed to the direct current motor 7 and the alternating current generator. There is a shaft power generation device which converts the current into alternating current again. However, such shaft power generators require high total cost because the equipment is complicated.
Furthermore, since it involves a process of converting direct current to alternating current, it has the disadvantage of poor energy conversion efficiency.

本発明は上記実情に鑑みてなさｎたもので、ブロベラ軸
の有するエネルギを有効にオ］］用し、プロペラ軸の回
転数変動に影響されずに一定周波数の交流電流を発生す
ることができる軸発電装置を提供することを目的とする
。The present invention has been developed in view of the above circumstances, and it is possible to effectively use the energy of the propeller shaft to generate alternating current at a constant frequency without being affected by fluctuations in the rotation speed of the propeller shaft. The purpose is to provide a shaft power generator.

この発明によ扛ば、プロペラ軸の機械動力を利用して発
電機の回転子を回転させるとともに、前記発電機の固定
子を他の駆動装置により回転させ、前記回転子と固定子
との相対的な回転数を常に同期回転数に保持し、一定周
波数の交流電流を発生させるようにしている。According to the present invention, the rotor of the generator is rotated using the mechanical power of the propeller shaft, and the stator of the generator is rotated by another drive device, so that the rotor and the stator are rotated relative to each other. The rotational speed is always maintained at a synchronous rotational speed, and an alternating current with a constant frequency is generated.

以下本発明を添附図面全参照して詳＃ｌｆｌに説明する
。The present invention will be described in detail below with reference to the accompanying drawings.

第３図は本発明による軸発電装置の一実施例を示す概略
構成図である。この軸発電装置は、プロペラ軸１０に設
けられたギヤ１２〜１４からなる増速機１５、プロペラ
軸１０から増速機１５、クラッチ１６を介して回転力が
伝達される回転軸１７にそれぞれ直結さ扛る励磁機１８
および交流発電機１９、励磁機１８および交流発電機１
９の固定子１８ａおよび１９ａを回転させるための直流
モータ２０お、［びギヤ２１〜２４、交流今市１＋幾１
９の固定子１９ａを停止させるためのブレーキ２５、ク
ラッチ２６を介して回転軸１７に直結されるディーゼル
エンジン２７から構成されている。FIG. 3 is a schematic configuration diagram showing an embodiment of the shaft power generator according to the present invention. This shaft power generation device is directly connected to a speed increaser 15 consisting of gears 12 to 14 provided on a propeller shaft 10 and a rotating shaft 17 to which rotational force is transmitted from the propeller shaft 10 via the speed increaser 15 and clutch 16. Exciter 18
and alternator 19, exciter 18 and alternator 1
DC motor 20 for rotating the stators 18a and 19a of 9, [and gears 21 to 24, AC Imaichi 1 + Imaichi 1]
The diesel engine 27 is directly connected to the rotating shaft 17 via a brake 25 and a clutch 26 for stopping the stator 19a of the engine 9.

次に、この軸発電装置の動作につＶ）て説明する。Next, V) the operation of this shaft power generator will be explained.

原ｒｌａｔ＆２ｓはプロペラｉｌｌ＋　１０に回転力を
伝達し、この回転力はギヤ１１．２９．３０．３１から
なる減速機３２で減速されプロペラ３３を回転させる。The original rlat&2s transmits rotational force to the propeller ill+ 10, and this rotational force is reduced by a reduction gear 32 consisting of gears 11, 29, 30, 31, and rotates a propeller 33.

一方、このときクラン′ｆ−１６はオンし、クラッチ１
７はオフさ扛て（八るため、前ｄ己プロペラ輔１０の回
転力はギヤ１１．１２．１３．１４からなる増速機１５
で増速され、クラッチ１６を介して回転軸１７を回転さ
せる。この回転軸１７には励磁機１８および交流発電機
１９の回転子１８ｂおよび１９ｂが直結さ五ているため
、励磁機１８では交流発電機１９界磁（回転子１９ｂ）
に直流電圧を加え、交流発電機１９では交流電流を発生
する。On the other hand, at this time, the crank 'f-16 is turned on and the clutch 1
7 is turned off (8), so the rotational force of the front propeller 10 is transferred to a speed increaser 15 consisting of gears 11, 12, 13, and 14.
The speed is increased, and the rotating shaft 17 is rotated via the clutch 16. Since the rotors 18b and 19b of the exciter 18 and the alternator 19 are directly connected to this rotating shaft 17, the exciter 18 is connected to the field of the alternator 19 (rotor 19b).
A DC voltage is applied to the AC generator 19, and an AC generator 19 generates an AC current.

ここで、プロペラ軸１０の回転数をＮ。、増速機１５の
増速率をｋとすると、回転軸１７の回転数　　□Ｎｏ／
′ｉ、次式 ％式％ となる。一方、発電機同期、；１度をＮ８とすると上記
回転数Ｎ。ｒ↓、次式 ％式％ に書き替えらｎる。ただし、Ｎはプロペラ軸１００回転
数Ｎ。に応じて変動する回転数である。したがって、交
流発電機１９の回転数を同期回転速度Ｎ８に保持するた
めには、交流発電機１９の固定子１９ａを回転させ、十
Ｎの回転数を与えればよい。この場合の交流発電機１９
の回転子１９ｂと固定子１９ａとの相対速度ｅＮ。ｌと
すると、相対速度Ｎ。ｌけ次式、 Ｎｏ／　＝Ｎｏ王Ｎ＝（Ｎ８±Ｎ）壬Ｎ＝Ｎ　。Here, the number of revolutions of the propeller shaft 10 is N. , if the speed increase rate of the speed increaser 15 is k, then the rotation speed of the rotating shaft 17 is □No/
′i, the following formula % formula % is obtained. On the other hand, when synchronous with the generator, if 1 degree is N8, then the rotation speed is N. r↓, rewrite it as the following formula. However, N is the propeller shaft 100 revolutions N. The rotation speed varies depending on the Therefore, in order to maintain the rotational speed of the alternator 19 at the synchronous rotational speed N8, the stator 19a of the alternator 19 may be rotated to provide a rotational speed of 10N. AC generator 19 in this case
The relative speed eN between the rotor 19b and the stator 19a. If l, then relative velocity N. The following formula: No/=No Wang N=(N8±N)壬N=N.

となり、この相対速度Ｎ。Ｉは同期回転速度Ｎ８に一致
する。Then, this relative speed N. I corresponds to the synchronous rotational speed N8.

すなわち、交流発を機１９の回転子１９ｂの回転数Ｎ。That is, the rotation speed N of the rotor 19b of the AC generator 19.

と同期回転速度Ｎ８とが不一致であっても交流発電機１
９の固定子１９ａを回転させることによシ回転子１９ｂ
と固定子１９ａとの相対回転数を常に同期回転速度Ｎ８
にすることができ、交流発電機１９はプロペラ軸１００
回転数に影響されずに常に一定周波数の電力を発生する
ことが可能になる。Even if the synchronous rotational speed N8 and N8 do not match, the AC generator 1
By rotating the stator 19a of 9, the rotor 19b
and the stator 19a are always kept at the synchronous rotation speed N8.
The alternator 19 can be connected to the propeller shaft 100.
It becomes possible to always generate power at a constant frequency without being affected by the rotation speed.

第４図では、直流モ〜り２０からギヤ２１．２２．２３
を介して交流発電機１９の固定子１９ａに所定の回転力
を伝達し、回転子１９ｂと固定子１９ａとの相対回転数
を常に同期回転速度Ｎ３にしている。また、励磁機１８
につｌ／）でも交流発電機１９と同様にその固定子１９
ａに直流モータ２０からギヤ２１．２２．２３．２４を
介して回転力を伝達し、所定電圧を発生するようにして
いる。In Figure 4, from DC motor 20 to gear 21, 22, 23
A predetermined rotational force is transmitted to the stator 19a of the alternating current generator 19 via the AC generator 19, and the relative rotational speed between the rotor 19b and the stator 19a is always kept at the synchronous rotational speed N3. In addition, the exciter 18
Similarly to the alternator 19, the stator 19 of
The rotational force is transmitted from the DC motor 20 to the gears 21, 22, 23, and 24 to generate a predetermined voltage.

なお、回転軸】７が定格速度（交流発電機１９の同期回
転速度）で回転している時は固定子１９ａは静止してい
ればよく、この時にはブレーキ２５によって固定子１９
ａｆ：停止させる。同様に励磁機につ（八でもブレーキ
２５′により停止させる。Note that when the rotating shaft [7] is rotating at the rated speed (synchronous rotational speed of the alternator 19), the stator 19a only needs to be stationary.
af: Stop. Similarly, the exciter is also stopped by the brake 25'.

また、停泊時には原＃機２８が停止し、プロペラ軸１０
は回転しないが、この場合にはクラッチ１６をオフにし
、クラッチ２６をオンにしてディーゼルエ／；＞ン゛４
７の出力によって回転ｎ（４＋　１７を回転させ、ｌ’
Ｌ　ＩｚＪ’　、１ｍい。Also, when at anchor, the original aircraft 28 stops and the propeller shaft 10
does not rotate, but in this case, turn off the clutch 16 and turn on the clutch 26 to start the diesel engine.
The output of 7 rotates n(4+17, l'
L IzJ', 1m long.

１ブζ、”ｊ！　４図は本発明による軸発電、装置の他
の′１６施例を示す概略構成図で、プロペラ軸４０に直
接励磁機４１および交流発電機４２を結合させた場合に
関して産している。この場合、原動機４３けプロペラ軸
４０に回転力を云媚し、プロペラ伺を回転させるととも
に、ぞれそ′れ励磁機４１および交流発電機４２０回転
子４１ｂおよび４２ｂを回転さゼ−る。−奢た、直流モ
ータ４５け上記実施例と同村）にギヤ４６および４７を
介してそれぞれ交流発電機４２および励磁機４１の固定
子４２ａ１４１ａを適宜回転させ、回転子４２ｂと固定
子４２ａとの相別回転数が交流発電機４２の同期回転速
度になるようにする。Figure 4 is a schematic configuration diagram showing another embodiment of the shaft power generator and device according to the present invention, in which an exciter 41 and an alternator 42 are directly connected to the propeller shaft 40. In this case, a rotational force is applied to the propeller shaft 40 of the prime mover 43 to rotate the propeller shaft, and also rotate the exciter 41 and the rotors 41b and 42b of the alternator 420, respectively. - A DC motor 45 (same as in the above embodiment) is used to appropriately rotate the alternator 42 and the stator 42a 141a of the exciter 41 via gears 46 and 47, respectively, and the rotor 42b and stator The rotational speed of the alternating current generator 42 is set to be the same as the rotational speed of the alternator 42a.

次に、固定子の回転数制御について説明する。Next, stator rotation speed control will be explained.

固定子が静止してｖするとき、交流発電機から発生する
電流の周波数をｆ１定格周波数をｆｓとすると、周波数
ｆは定格周波数ｆ、と他の周波数ｆ′に分解でき、次式
、 ｆ＝ｆ　　±ｆ′ で表わすことができる。この周波数ｆ′をＯにするよう
に、即ち固定子に＋ｆ’の回転を与えるように直流モー
タを自動制御すれは定格周波数ｆ８の交流電流が得ら扛
る。When the stator is stationary and moves v, the frequency of the current generated from the alternator is f1, and the rated frequency is fs, then the frequency f can be decomposed into the rated frequency f and another frequency f', and the following equation, f= It can be expressed as f ±f'. If the DC motor is automatically controlled so that this frequency f' becomes O, that is, to give +f' rotation to the stator, an AC current of the rated frequency f8 is obtained.

したがって、直流モータを自動制御する場合は、定格周
波数ｆｓに対応する電圧を予め設定するとともに、周波
数ｆに対応する直圧を例えば回転子の回転軸に設けられ
る回転数検出器によって検出し、両者の偏差を適宜増幅
してこれを直流モータの駆動電圧にすればよい。Therefore, when automatically controlling a DC motor, the voltage corresponding to the rated frequency fs is set in advance, and the direct pressure corresponding to the frequency f is detected, for example, by a rotation speed detector provided on the rotating shaft of the rotor. The deviation may be appropriately amplified and used as the drive voltage of the DC motor.

すなわち、交流発電機の固定子の回転数制御は、全く電
気的処理によって行なうことができる。That is, the rotational speed control of the stator of the alternator can be performed entirely by electrical processing.

なお、−上記実施例は船舶のプロペラ軸の軸エネルギを
利用するようにしたが、これに限らず回転数が変動する
他の駆動軸の軸エネルギを利用するようにしてもよい。Although the above embodiment utilizes the axial energy of the propeller shaft of the ship, the present invention is not limited to this, and the axial energy of another drive shaft whose rotational speed varies may be utilized.

捷だ固定子駆動用モータは直流機以外の可変速電動機を
使用できることはいうまでもない。It goes without saying that a variable speed electric motor other than a DC motor can be used as the motor for driving the rotary stator.

以上説明したように本発明によれば、プロペラ軸の回転
数に応じて交流発電機の固定子を適宜回転させているた
め、プロペラ軸の回転数変動に影響さｎずに一定周波数
の１１”し力を発生させることができる。−手だ、構造
が簡単であるとともに、プロペラ軸エネルギを効率よく
交流電流に変換することができる。As explained above, according to the present invention, since the stator of the alternator is rotated appropriately according to the rotation speed of the propeller shaft, the constant frequency of 11" is maintained without being affected by the rotation speed fluctuation of the propeller shaft. - It has a simple structure and can efficiently convert propeller shaft energy into alternating current.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図および第２図は従来の軸発電装置を示す概略構成
図、第３図は本発明による軸発電装置の−実Ｍ！ｊ　１
３１１ｕを示す概略構成図、第４図は本発明による軸発
電装置の他の実施例を示す概略構成図である。 １．１０．４０・・・プロペラ軸、４．２８．４３・・
・原動機、５．１９．４２・・・交流発電機、６・・・
整流器；　７．２０．４５・・・直流モータ、１５・・
・増速機、１６．２６・・・クラッチ、１７・・・回転
軸、１８．４１　・・・励磁機、１８ａ、１９ａ−同定
子、１８ｂ１１９ｂ・・・回転子、２５．２５′・・・
ブレーキ。1 and 2 are schematic configuration diagrams showing a conventional shaft power generation device, and FIG. 3 is a diagram showing the actual shaft power generation device according to the present invention. j 1
311u, and FIG. 4 is a schematic diagram showing another embodiment of the shaft power generator according to the present invention. 1.10.40...propeller shaft, 4.28.43...
・Prime mover, 5.19.42...AC generator, 6...
Rectifier; 7.20.45...DC motor, 15...
- Speed increaser, 16.26...Clutch, 17...Rotating shaft, 18.41...Exciter, 18a, 19a-identifier, 18b119b...Rotor, 25.25'...
brake.

Claims (2)

【特許請求の範囲】[Claims] （１）　　回転変動する駆動軸の機械ＱｊＩＩ力を利用
１．て発電機の回転子を回転させるとともに、前記発電
機の固定子を他の駆動装置により回転させ、前記回転子
と固定子との相対的な回転数を常に同期回転数に保持す
るようにした軸発電装置。(1) Using the mechanical QjII force of the drive shaft whose rotation fluctuates1. The rotor of the generator is rotated by the rotor, and the stator of the generator is also rotated by another drive device, so that the relative rotational speed of the rotor and the stator is always maintained at a synchronous rotational speed. Shaft generator. （２）前記発電機の固定子は、定格回転数と前記発電機
の回転子回転数との偏差に応じて回転数制御されるもの
である特許請求の範囲第（１）項記載の軸発電装置。(2) The shaft power generator according to claim 1, wherein the rotation speed of the stator of the generator is controlled according to the deviation between the rated rotation speed and the rotor rotation speed of the generator. Device.
JP56111418A 1981-07-16 1981-07-16 Shaft generating device Pending JPS5815449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56111418A JPS5815449A (en) 1981-07-16 1981-07-16 Shaft generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56111418A JPS5815449A (en) 1981-07-16 1981-07-16 Shaft generating device

Publications (1)

Publication Number Publication Date
JPS5815449A true JPS5815449A (en) 1983-01-28

Family

ID=14560667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56111418A Pending JPS5815449A (en) 1981-07-16 1981-07-16 Shaft generating device

Country Status (1)

Country Link
JP (1) JPS5815449A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63501469A (en) * 1984-10-09 1988-06-02 リヴキン　ジヤツク Generator set for construction site

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63501469A (en) * 1984-10-09 1988-06-02 リヴキン　ジヤツク Generator set for construction site

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