JPS596757A - Field unit for synchronous motor - Google Patents

Field unit for synchronous motor

Info

Publication number
JPS596757A
JPS596757A JP11536482A JP11536482A JPS596757A JP S596757 A JPS596757 A JP S596757A JP 11536482 A JP11536482 A JP 11536482A JP 11536482 A JP11536482 A JP 11536482A JP S596757 A JPS596757 A JP S596757A
Authority
JP
Japan
Prior art keywords
field
field winding
coil
synchronous motor
units
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
JP11536482A
Other languages
Japanese (ja)
Inventor
Koji Ozawa
幸司 小沢
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11536482A priority Critical patent/JPS596757A/en
Publication of JPS596757A publication Critical patent/JPS596757A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/02—Synchronous motors
    • H02K19/10—Synchronous motors for multi-phase current
    • H02K19/12—Synchronous motors for multi-phase current characterised by the arrangement of exciting windings, e.g. for self-excitation, compounding or pole-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

PURPOSE:To save the installing space of a synchronous motor and to reduce the cost of the motor by dividing a field coil into a plurality of coil units, winding the coil of partial coil unit at the armature side of a pole core, and winding the coil of other coil unit on an opposite armature side to be used as a discharging resistor. CONSTITUTION:A field coil 1 is divided into field coil units 2A, 2B connected in parallel with one another, the coil units 2A, 2B are composed of a plurality of field coils 2A1, 2A2..., 2B1, 2B2... connected in series with each other, the field coils 2A1, 2A2... of one field coil unit 2A are wound on the armature side part of the pole core 4, i.e., on the outer peripheral side, and the other field coil units 2B1, 2B2... are wound on the opposite armature side part of the pole core 4, i.e., on the inner peripheral side to be used as a discharging resistor. In this manner, the installing space can be reduced, and the cost can be decreased.

Description

【発明の詳細な説明】 本発明は同期電動機の界磁装置に係り、特にその放電抵
抗に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a field device for a synchronous motor, and particularly to a discharge resistor thereof.

自己始動する同期電動機では、始動時にその界磁巻線に
高圧の交流電圧が誘起される。そこで、第１図に示すよ
うに、界磁巻線２と並列に放電抵抗３を接続することに
より、前記高圧交流電圧を放電して界磁巻線２を高圧か
ら保護している。なお、１は同期電動機の電機子である
。In a self-starting synchronous motor, a high alternating current voltage is induced in its field winding at the time of starting. Therefore, as shown in FIG. 1, a discharge resistor 3 is connected in parallel with the field winding 2 to discharge the high voltage AC voltage and protect the field winding 2 from the high voltage. Note that 1 is an armature of a synchronous motor.

ところで、前記放電抵抗３は同期電動機の始動時のみ必
要で、通常の運転時には不必要なものである。また、同
期電動機の容量が大きく彦れば、それに伴って放電抵抗
３も大形となる。したがって、このような放電抵抗３を
設けることは設置スペースや価格などの面で不利となる
。By the way, the discharge resistor 3 is necessary only when starting the synchronous motor, and is unnecessary during normal operation. Further, as the capacity of the synchronous motor increases, the discharge resistor 3 also increases accordingly. Therefore, providing such a discharge resistor 3 is disadvantageous in terms of installation space and cost.

本発明はこの点に鑑みてなされるもので、その目的は、
放電抵抗を省略して、その設置スペースを節約しかつ安
価に製作し得る同期電動機の界磁装置を提供することに
ある。The present invention has been made in view of this point, and its purpose is to
It is an object of the present invention to provide a field device for a synchronous motor that can save installation space and be manufactured at low cost by omitting a discharge resistor.

この目的を達成するため、本発明は、界磁巻線を互いに
並列接続された複数の界磁巻線単位に分割し、この複数
の界磁巻線単位のうち、一部の界磁巻線単位の各界磁線
輪を磁極鉄心の電機子側部分に巻装するとともに、他の
界磁巻線単位の各界磁線輪を磁極鉄心の反電機子側部分
に巻装して放電抵抗として兼用したことを特徴とする特
以下、本発明の一実施例を第２図および第３図について
説明する。In order to achieve this object, the present invention divides a field winding into a plurality of field winding units connected in parallel with each other, and among the plurality of field winding units, some of the field windings Each field wire ring of a unit is wound around the armature side part of the magnetic pole core, and each field wire ring of another field winding unit is wound around the anti-armature side part of the magnetic pole core to serve as a discharge resistor. Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 2 and 3.

この実施例では、界磁巻線２が互いに並列接続された２
つの界磁巻線単位２Ａ、２Ｂに分割されるとともに１従
来の放電抵抗３が省略され、その代りに１前記界磁巻線
単位２Ｂが放電抵抗として兼用されている。前記界磁巻
線単位２Ａ、２Ｂはそれぞれ互いに直列接続された複数
の界磁線輪２Ａｚ　、　２Ａ＊　、　２Ａｓ　ｅ”””
ｆ２Ｂｓ　ｔ　２Ｂｔ　＋　ｚＢ、。In this embodiment, the field windings 2 are connected in parallel to each other.
It is divided into two field winding units 2A and 2B, and one conventional discharge resistor 3 is omitted, and instead, one field winding unit 2B is also used as a discharge resistor. The field winding units 2A and 2B each include a plurality of field wire rings 2Az, 2A*, 2As e""" connected in series with each other.
f2Bs t 2Bt + zB,.

・・・・・・からなり、一方の界磁巻線単位２人の各界
磁線輪２Ａ、　、　２Ａ、　、　２ＡＡ　、・・・・・
・は各磁極鉄心４の電機子側部分、つまシ外周側に、他
方の界磁巻線単位２Ｂの各界磁線輪２Ｂ、　、　２Ｂ、
　、　２Ｂ、　、・・・・・・は各磁極鉄心４の反電機
子側部分、つまり内周側にそれぞれ巻装されている。. . ., one field winding unit consists of two field wire rings 2A, , 2A, , 2AA, . . .
・ indicates each field wire ring 2B of the other field winding unit 2B on the armature side portion of each magnetic pole core 4, on the outer periphery of the armature.
, 2B, .

したがって、同期電動機の始動時、各界磁線輪２Ａｓ　
＊　２４　ｅ　２Ａｓ　＋・・・・・・が各磁極鉄心４
の電機子側部分、つｔｂ電機様子に接近した部分に巻装
されている一方の界磁巻線単位２人には、電機子１側か
らの磁束の影響によって高圧の誘起電圧が発生するが、
各界磁線輪２Ｂ１　、２Ｂｘ　、　２Ｂｍ　−・・・・
・・が各磁極鉄心４の反電機子側部分、つまシミ様子１
から離れた部分に巻装されている他方の界磁巻線単位２
Ｂには、電機子１側からの磁束の影響が少なくて殆んど
誘起電圧が発生しないので、一方の界磁巻線単位２人に
発生した高電圧を、他方の界磁巻線単位２Ｂによって放
電し、界磁巻線２に異常電圧が発生するのを防ぐことが
できる。また、通常の運転時には、２つの界磁巻線単位
２Ａ。Therefore, when starting the synchronous motor, each field wire ring 2As
*24 e 2As +... is each magnetic pole core 4
A high induced voltage is generated in one of the two field winding units, which are wound on the armature side part and the part close to the electric machine, due to the influence of magnetic flux from the armature 1 side. ,
Each field wire ring 2B1, 2Bx, 2Bm ---
... is the anti-armature side part of each magnetic pole core 4, tab stain 1
The other field winding unit 2 is wound in a part away from the field winding unit 2.
Since the influence of the magnetic flux from the armature 1 side is small and almost no induced voltage is generated in B, the high voltage generated in the two field winding units on one side is transferred to the other field winding unit 2B. This can prevent abnormal voltage from being generated in the field winding 2 due to discharge. Also, during normal operation, two field winding units 2A.

２Ｂにそれぞれ励磁電流を流すことによシ、正規の界磁
磁束を得ることができる。A normal field magnetic flux can be obtained by passing an exciting current through each of the 2Bs.

以上説明したように、本発明によれば、界磁巻線の一部
を放電抵抗として兼用することＫよυ、放電抵抗を省略
したので、その設置スペースを節約し得るとともに、装
置を安価に製作することができる。As explained above, according to the present invention, a part of the field winding can also be used as a discharge resistor, and since the discharge resistor is omitted, the installation space can be saved and the device can be made at low cost. It can be manufactured.

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

第１図は従来の同期電動機の電気回路図、第２図は本発
明の一実施例に係る同期電動機の電気回路図、第３図は
本発明の一実施例に係る同期電動機の磁極部分を示す展
開図である。 １・・・電機子、２・・・界磁巻線、２Ａ、２Ｂ・・・
界磁巻線単位、２Ａ１〜２Ａ、、２Ｂ１〜２Ｂ４・・・
界磁線輪、第　　ｌ　　国 第　２　目Fig. 1 is an electric circuit diagram of a conventional synchronous motor, Fig. 2 is an electric circuit diagram of a synchronous motor according to an embodiment of the present invention, and Fig. 3 is a magnetic pole part of a synchronous motor according to an embodiment of the present invention. FIG. 1... Armature, 2... Field winding, 2A, 2B...
Field winding unit, 2A1 to 2A, 2B1 to 2B4...
Field wire ring, 1st country, 2nd

Claims (1)

【特許請求の範囲】[Claims] １、複数個の磁極鉄心に界磁巻線の互いに直列接続され
た各界磁線輪をそれぞれ巻装して各磁極を構成し、かつ
前記界磁巻線に並列に放電抵抗を接続したものにおいて
、前記界磁巻線を互いに並列接続された複数の界磁巻線
単位に分割し、この複数の界磁巻線単位のうち、一部の
界磁巻線単位の各界磁線輪を前記磁極鉄心の電機子側部
分に巻装するとともに、他の界磁巻線単位の各界磁線輪
を前記磁極鉄心の反軍磁子側部分に巻装して前記放電抵
抗として兼用したことを特徴とする同期電動機の界磁装
置。1. Each magnetic pole is formed by winding each field wire ring connected in series with a field winding around a plurality of magnetic pole iron cores, and a discharge resistor is connected in parallel to the field winding. , the field winding is divided into a plurality of field winding units connected in parallel with each other, and each field wire ring of some field winding units among the plurality of field winding units is connected to the magnetic pole. It is characterized in that it is wound around the armature side portion of the iron core, and each field wire ring of another field winding unit is wound around the anti-magnetic side portion of the magnetic pole core so that it also serves as the discharge resistor. Field device for synchronous motor.
JP11536482A 1982-07-05 1982-07-05 Field unit for synchronous motor Pending JPS596757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11536482A JPS596757A (en) 1982-07-05 1982-07-05 Field unit for synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11536482A JPS596757A (en) 1982-07-05 1982-07-05 Field unit for synchronous motor

Publications (1)

Publication Number Publication Date
JPS596757A true JPS596757A (en) 1984-01-13

Family

ID=14660691

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11536482A Pending JPS596757A (en) 1982-07-05 1982-07-05 Field unit for synchronous motor

Country Status (1)

Country Link
JP (1) JPS596757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012119872A3 (en) * 2011-03-08 2013-08-15 Siemens Aktiengesellschaft Rotor for a superconducting synchronous machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012119872A3 (en) * 2011-03-08 2013-08-15 Siemens Aktiengesellschaft Rotor for a superconducting synchronous machine

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