JPS594950B2 - Regenerative chopper circuit for series-wound DC motor - Google Patents
Regenerative chopper circuit for series-wound DC motorInfo
- Publication number
- JPS594950B2 JPS594950B2 JP1116180A JP1116180A JPS594950B2 JP S594950 B2 JPS594950 B2 JP S594950B2 JP 1116180 A JP1116180 A JP 1116180A JP 1116180 A JP1116180 A JP 1116180A JP S594950 B2 JPS594950 B2 JP S594950B2
- Authority
- JP
- Japan
- Prior art keywords
- series
- diode
- motor
- regenerative
- capacitor
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor
- H02P3/14—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by regenerative braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
Description
【発明の詳細な説明】
本発明は一旦停止後に回転したときでも回生可１０能な
直巻直流モータ用の回生チョッパ回路に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a regenerative chopper circuit for a series-wound DC motor that is capable of regenerating even when the motor rotates after once stopping.
従来のこの種の回路では、回生運転中、一旦停止すると
、その後、再び回転したとき、直巻直流モータが界磁束
がないため発電せず、したがつて、１５回生運転ができ
ないことからモータに分巻界磁を設けて、この分巻界磁
に切替えて回生するようにしている。In conventional circuits of this type, once the motor is stopped during regenerative operation, when it starts rotating again, the series-wound DC motor does not generate electricity because there is no field flux, and therefore the motor cannot perform regenerative operation. A shunt field is provided, and regeneration is performed by switching to this shunt field.
しかし、このように分巻界磁を設けて切替えを行うよう
にすると、その分だけコストアップとなる。■０ 本発
明は、この欠点を解消し、安価で、一旦停止後でも回生
可能な直巻直流モータ用の回生チョッパ回路を提供する
ことを目的とする。However, if switching is performed by providing a shunt field in this way, the cost will increase accordingly. (20) An object of the present invention is to eliminate this drawback and to provide a regenerative chopper circuit for a series-wound DC motor that is inexpensive and capable of regenerating even after a temporary stop.
以下、図示する実施例により本発明の構成及び作用を詳
細に説明する。EMBODIMENT OF THE INVENTION Hereinafter, the structure and operation of the present invention will be explained in detail with reference to illustrated embodiments.
図は本発明の実施例を示ノ５ す回路構成図である。図
中、Ｂは直流電源、ＳＣＲ＿、はチョッパー用主サイリ
スタ、Ｆは直巻直流モータの直巻巻線、Ａは直巻直流モ
ータの電機子、ＭＣは力行一回生切替用の開閉器、ＳＣ
Ｒ＿２は転流用サイリスタ、Ｌｏは転流用リアクトル、
Ｃｏノ０ は転流用コンデンサ、Ｒ１は転流コンデンサ
Ｃｏの充電用抵抗器、ＳＲ＿４は転流コンデンサＣｏの
充電用ダイオード、ＳＲ＿３は転流用ダイオード、ＳＲ
＿Ｉはフライホィール用ダイオード、ＳＲ＿２は回生用
ダイオード、Ｃｌは本発明により追加する１５回生用コ
ンデンサである。以上の構成により、まず力行時は、開
閉器ＭＣを投入した状態で運転される。The figure is a circuit configuration diagram showing an embodiment of the present invention. In the figure, B is the DC power supply, SCR_ is the main thyristor for the chopper, F is the series winding of the series DC motor, A is the armature of the series DC motor, MC is the switch for switching between power running and regeneration, SC
R_2 is a commutation thyristor, Lo is a commutation reactor,
Co0 is a commutating capacitor, R1 is a charging resistor for commutating capacitor Co, SR_4 is a charging diode for commutating capacitor Co, SR_3 is a commutating diode, SR
_I is a flywheel diode, SR_2 is a regeneration diode, and Cl is a 15 regeneration capacitor added according to the present invention. With the above configuration, during power running, the engine is operated with the switch MC closed.
その状態で主サイリスタＳＣＲｌをオンとすると、Ｂ−
ＳＣＲｌＦ−Ａ−ＭＣ−Ｂの経路でモータに電流が流れ
る。そして、一定時間後、転流用サイリスタＳＣＲ２を
オンとすると、それまでにＢ−ＬＯ−ＣＯＲｌ−ＳＲ４
−Ｂの経路で転流用コンデンサＣ。に充電されている電
荷が、ＣＯ−ＬＯ−ＳＣＲ，ＳＣＲ２−ＣＯの経路で放
電するが、ＣＯＬＯで共振回路が形成されているため、
その放電に続いてＣ。If the main thyristor SCRl is turned on in this state, B-
Current flows through the motor through the path SCRlF-A-MC-B. Then, after a certain period of time, when the commutation thyristor SCR2 is turned on, B-LO-CORl-SR4
- Commutation capacitor C in route B. The charges charged in the 2-CO are discharged along the CO-LO-SCR and SCR2-CO paths, but since a resonant circuit is formed in the COLO,
Following that discharge, C.
が、逆方向（ＬＯ側マイナス、ＳＲ３側プラス）に充電
され、引き続いて逆充電されたその電荷がＣ。−ＳＲ３
−ＳＣＲ，−ＬＯ−ＣＯの経路で放電される。したがつ
て主サイリスタＳＣＲｌがオフとなる。その後一定時間
後に再び主サイリスタＳＣＲ，がオンされる。以後同様
にしてＳＣＲｌがオン・オフされ、モータＦ，Ａがチヨ
ツパ一制御される。次に、回生時は開閉器ＭＣをオフし
た状態で運転される。モータＡが負荷により駆動される
状態（回生状態）になると、モータＡ，Ｆが発電機とな
り、Ａ−ＳＲ２−Ｂ一ＳＲｌ−Ｆ−Ａの経路で電源Ｂに
電力が回生される。こ＼で回転した状態で力行から回生
に移行する場合は直巻巻線Ｆが励磁されているためモー
タが発電機として電力を発生し得るが、回転が一旦停止
すると、直巻巻線Ｆの電流が零となり、その後負荷によ
りモータ電機子Ａが駆動された場合、初期励磁されない
ため、発電機として電力を発生せず、したがつて回生さ
れない。このため、本発明により回生用コンデンサＣ１
を付加したものである。すなわち、回転が停止しても主
サイリスタＳＣＲ，のオン・オフを続けると、オフ時に
Ｂ−Ｃ１−Ａ−Ｆ−ＳＣＲ２−Ｒ１−ＳＲ４−Ｂの経路
でコンデンサＣ１が充電され、オン時にその充電された
電荷がＣ１−ＳＣＲｌ−Ｆ−Ａ−Ｃ１の経路で充電され
るため直巻巻線Ｆが励磁され、回生可能となる。こ＼で
、コンデンサＣ，への突入電流を防止するためインピー
ダンスをコンデンサＣ１へ直列に挿入することも考えら
れる。is charged in the opposite direction (LO side negative, SR3 side positive), and the charge that is subsequently reversely charged is C. -SR3
-SCR, -LO-CO is discharged. Therefore, main thyristor SCRl is turned off. Thereafter, the main thyristor SCR is turned on again after a certain period of time. Thereafter, SCR1 is turned on and off in the same manner, and motors F and A are controlled in a choppy manner. Next, during regeneration, the engine is operated with the switch MC turned off. When motor A is driven by a load (regeneration state), motors A and F become generators, and electric power is regenerated to power supply B along the path A-SR2-B-SRl-FA. When the motor shifts from power running to regeneration while rotating, the motor can generate electricity as a generator because the series winding F is excited, but once the rotation stops, the series winding F When the current becomes zero and the motor armature A is subsequently driven by the load, it is not initially excited and therefore does not generate electric power as a generator, and therefore is not regenerated. Therefore, according to the present invention, the regenerative capacitor C1
is added. In other words, if the main thyristor SCR continues to be turned on and off even when the rotation stops, the capacitor C1 will be charged through the path B-C1-A-F-SCR2-R1-SR4-B when it is off, and its charging will continue when it is on. Since the electric charge thus generated is charged through the path C1-SCR1-F-A-C1, the series winding F is excited and regeneration becomes possible. In this case, it may be possible to insert an impedance in series with the capacitor C1 to prevent a rush current from flowing into the capacitor C1.
以上述べたように本発明により一旦回転停止後でも再生
可能な直巻直流モータ用の回生チヨツパ回路が安価に得
られるという効果がもたらされる。As described above, the present invention has the effect that a regenerative chopper circuit for a series-wound DC motor that can be regenerated even after rotation has stopped can be obtained at a low cost.
図は本発明の実施例を示す回路構成図である。 The figure is a circuit configuration diagram showing an embodiment of the present invention.
Claims (1)
ＳＣＲ＿１−直巻直流モータＦ、Ａ−開閉器ＭＣ−上記
直流電源Ｂ、よりなる第１の閉回路；上記直流電源Ｂ−
転流リアクトルＬ＿０と転流コンデンサＣ＿０との直列
接続−抵抗器Ｒ＿１と記載順に対し順極性のダイオード
ＳＲ＿４との直列接続−上記直流電源Ｂ、よりなる第２
の閉回路；上記転流リアクトルＬ＿０又は上記転流コン
デンサＣ＿０と上記抵抗器Ｒ＿１又は上記ダイオードＳ
Ｒ＿４との接続点と、上記主サイリスタＳＣＲ＿１のカ
ソードとの間に接続された記載順に対し、逆極性の転流
用サイリスタＳＣＲ＿２；上記転流サイリスタＳＣＲ＿
２に逆極性に並列接続されたダイオードＳＲ＿３；上記
直流モータＦ、Ａと上記開閉器ＭＣとの直列接続に並列
接続された記載順に対し、逆極性のフライホイール用ダ
イオードＳＲ＿１；上記直流モータＦ、Ａと上記開閉器
ＭＣとの接続点と、上記直流電源Ｂのプラス端子との間
に接続された、記載順に対し順極性の回生用ダイオード
ＳＲ＿２；上記回生用ダイオードＳＲ＿２に並列接続さ
れた回生用コンデンサＣ＿１又は、突入電流防止用イン
ピーダンスと回生用コンデンサＣ＿１との直列接続；で
回路構成されたことを特徴とする直巻直流モータ用回生
チョッパ回路。1 DC power supply B - main thyristor with forward polarity SCR_1 in the order of description - series DC motor F, A - switch MC - the above DC power supply B, the first closed circuit; the above DC power supply B -
Series connection of commutating reactor L_0 and commutating capacitor C_0 - series connection of resistor R_1 and diode SR_4 of forward polarity in the order of description - the second DC power supply B, consisting of
closed circuit; the commutating reactor L_0 or the commutating capacitor C_0 and the resistor R_1 or the diode S
Commutation thyristor SCR_2 of opposite polarity with respect to the order of description connected between the connection point with R_4 and the cathode of the main thyristor SCR_1; the commutation thyristor SCR_
Diode SR_3 connected in parallel with the reverse polarity to the DC motors F, A and the switch MC; a flywheel diode SR_1 with a reverse polarity to the listed order connected in parallel to the series connection of the DC motors F, A and the switch MC; A regenerative diode SR_2 of forward polarity in the order of description, connected between the connection point of A and the switch MC and the positive terminal of the DC power supply B; a regenerative diode SR_2 connected in parallel to the regenerative diode SR_2. A regenerative chopper circuit for a series-wound DC motor, characterized in that the circuit is configured by a capacitor C_1 or a series connection of an inrush current prevention impedance and a regenerative capacitor C_1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116180A JPS594950B2 (en) | 1980-01-31 | 1980-01-31 | Regenerative chopper circuit for series-wound DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1116180A JPS594950B2 (en) | 1980-01-31 | 1980-01-31 | Regenerative chopper circuit for series-wound DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56110489A JPS56110489A (en) | 1981-09-01 |
| JPS594950B2 true JPS594950B2 (en) | 1984-02-01 |
Family
ID=11770306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1116180A Expired JPS594950B2 (en) | 1980-01-31 | 1980-01-31 | Regenerative chopper circuit for series-wound DC motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS594950B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416196U (en) * | 1987-07-15 | 1989-01-26 |
-
1980
- 1980-01-31 JP JP1116180A patent/JPS594950B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56110489A (en) | 1981-09-01 |
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