JPS5837796B2 - Transient rectification spark prevention device for DC machines - Google Patents
Transient rectification spark prevention device for DC machinesInfo
- Publication number
- JPS5837796B2 JPS5837796B2 JP54108119A JP10811979A JPS5837796B2 JP S5837796 B2 JPS5837796 B2 JP S5837796B2 JP 54108119 A JP54108119 A JP 54108119A JP 10811979 A JP10811979 A JP 10811979A JP S5837796 B2 JPS5837796 B2 JP S5837796B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- load current
- prevention device
- commutator
- machines
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Dc Machiner (AREA)
Description
【発明の詳細な説明】
この発明は直流機の過渡および脈動時における整流火花
防止装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rectifying spark prevention device during transient and pulsation of a DC machine.
直流機の負荷電流が変動する場合、補極磁路にうず電流
が生じ、このため桶極磁束が負荷電流に追従できなくな
り整流火花が発生し機械を損傷する。When the load current of a DC machine fluctuates, eddy currents occur in the interpolation magnetic path, which makes it impossible for the bucket pole magnetic flux to follow the load current, causing rectification sparks and damaging the machine.
従来、この対策として補極および継鉄を積層構造とする
が、これによっても補極の磁束遅れを完全になくすこと
はできないし、特に継鉄を積層することにより構造が複
雑となり、寸法および重量も増加する欠点があった。Conventionally, as a countermeasure to this problem, the commutating pole and yoke are made of a laminated structure, but even with this, the magnetic flux delay of the commutating pole cannot be completely eliminated, and the structure becomes complicated, especially when the yoke is laminated, and the size and weight increase. There was also the disadvantage of increasing
この発明は直流機の継鉄を積層することなしに負荷電流
変動時においても整流火花の発生しない整流特性のすぐ
れた直流機を得ることを目的としている。The object of the present invention is to obtain a DC machine with excellent rectification characteristics that does not generate rectification sparks even when the load current fluctuates, without stacking the yoke of the DC machine.
この発明の第ｌ実施例を図面にもとづいて説明する。A first embodiment of the present invention will be described based on the drawings.
第１図において、負荷電流の微分検出器１は１次巻線Ｐ
および２次巻線Ｓよりなり、そのｌ次側Ｐは補極巻線５
ならびに電機子６に直列に接続されている。In FIG. 1, a load current differential detector 1 has a primary winding P
and a secondary winding S, whose primary side P is a commutator winding 5.
and is connected in series to the armature 6.
また、２次側Ｓは補償回路２、電力増巾器３を通して、
補極巻線５と同じ補極鉄心に施された補極補助巻線４に
接続されている。In addition, the secondary side S passes through a compensation circuit 2 and a power amplifier 3,
It is connected to a commutator auxiliary winding 4 provided on the same commutator core as the commutator winding 5.
なお、微分検出器１のｌ次側Ｐと２次側Ｓは逆極性、補
極補助巻線４は補極巻線５と同極性となるように構成さ
れている。It should be noted that the primary side P and the secondary side S of the differential detector 1 are configured to have opposite polarities, and the commutator auxiliary winding 4 has the same polarity as the commutator winding 5.
したがって、負荷電流が変化すると微分検出器１の２次
側Ｓに、その電流変化率に応じた大きさと極性の電圧が
生じ、これが補償回路２および電力増巾器３により補極
の磁束遅れ分に相当する電流に変換され、補極補助巻線
４に流れる。Therefore, when the load current changes, a voltage with a magnitude and polarity corresponding to the rate of change of the current is generated on the secondary side S of the differential detector 1. is converted into a current corresponding to , and flows into the commutator auxiliary winding 4.
補極補助巻線４の磁束は、負荷電流の増加時には補極巻
線５の磁束に加わる向きに、また、負荷電流の減少時に
は補極巻線５の磁束を減ずる向きに生じるから、いずれ
の場合にも補極磁束は負荷電流から遅れナくナる。The magnetic flux of the commutator auxiliary winding 4 is generated in a direction that adds to the magnetic flux of the commutator winding 5 when the load current increases, and in a direction that reduces the magnetic flux of the commutator winding 5 when the load current decreases. In this case, the interpole magnetic flux lags behind the load current.
このため直流機の補極磁束の時間遅れにもとづく整流火
花の発生をなくすことができる。Therefore, it is possible to eliminate the occurrence of rectification sparks due to the time delay of the commutating magnetic flux of the DC machine.
次に、この発明の第２実施例を第２図によって説明する
。Next, a second embodiment of the invention will be described with reference to FIG.
この実施例は前述の第１実施例の電力増巾器３を用いな
いもので、その他の構成は第１実施例と同じである。This embodiment does not use the power amplifier 3 of the first embodiment described above, and the other configurations are the same as those of the first embodiment.
このような構成によれば、第ｌ実施例に比べパワ容量の
大きい微分検出器１が必要になるが電力増巾器３を省く
ことができ、前述の第１実施例と同様な作用効果が得ら
れる。According to such a configuration, although the differential detector 1 with a larger power capacity is required than in the first embodiment, the power amplifier 3 can be omitted, and the same effects as in the first embodiment described above can be obtained. can get.
この発明は以上説明したように、補極補助巻線を施した
直流機に負荷電流の微分検出器および補償回路、電力増
巾器（第１図の場合）からなる簡単な補償装置を外部か
ら結合することにより、負荷電流に対する補極磁束の追
従特性を良くすることができ、したがって直流帰の過渡
および脈動時における整流火花の発生を防止する効果が
ある。As explained above, in this invention, a simple compensation device consisting of a load current differential detector, a compensation circuit, and a power amplifier (in the case of FIG. By coupling, it is possible to improve the follow-up characteristic of the commutating magnetic flux with respect to the load current, and it is therefore effective to prevent the occurrence of rectification sparks during transients and pulsations of DC return.
図面はこの発明の実施例に関し、第１図はその第ｌ実施
例の電気結線図、第２図はその第２実施例の電気結線図
である。
１・・・・・・負荷電流の微分検出器、２・・・・・・
補償回路、３・・・・・・電力増巾器、４・・・・・・
補極補助巻線、５・・・・・・補極巻線、６・・・・・
・電機子。The drawings relate to embodiments of the present invention; FIG. 1 is an electrical wiring diagram of the first embodiment, and FIG. 2 is an electrical wiring diagram of the second embodiment. 1...Load current differential detector, 2...
Compensation circuit, 3...Power amplifier, 4...
Commutating pole auxiliary winding, 5... Commuting pole winding, 6...
・Armature.
Claims (1)
て、前記補極巻線が施されている補極に補極補助巻線を
設け、前記電機子の回路中に負荷電流の微分検出器のｌ
次側を挿入し、その２次側を前記負荷電流の電流変化率
に応じた大きさと極性の電圧を発生する補償回路を介し
て前記補極補助巻線に接続したことを特徴とする直流機
の過渡整流火花防止装置。1. In a DC machine in which a commutating pole winding is connected in series to an armature, a commuting auxiliary winding is provided on the commutating pole to which the commutating pole winding is applied, and the load current is differentiated in the circuit of the armature. detector l
A direct current machine characterized in that the secondary side is connected to the commutator auxiliary winding via a compensation circuit that generates a voltage of a magnitude and polarity according to the current change rate of the load current. Transient rectifier spark prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54108119A JPS5837796B2 (en) | 1979-08-27 | 1979-08-27 | Transient rectification spark prevention device for DC machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP54108119A JPS5837796B2 (en) | 1979-08-27 | 1979-08-27 | Transient rectification spark prevention device for DC machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5635693A JPS5635693A (en) | 1981-04-08 |
| JPS5837796B2 true JPS5837796B2 (en) | 1983-08-18 |
Family
ID=14476394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54108119A Expired JPS5837796B2 (en) | 1979-08-27 | 1979-08-27 | Transient rectification spark prevention device for DC machines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5837796B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57129161A (en) * | 1981-02-04 | 1982-08-11 | Toshiba Corp | Direct current machine |
-
1979
- 1979-08-27 JP JP54108119A patent/JPS5837796B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5635693A (en) | 1981-04-08 |
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