JPH022396B2 - - Google Patents
Info
- Publication number
- JPH022396B2 JPH022396B2 JP58027708A JP2770883A JPH022396B2 JP H022396 B2 JPH022396 B2 JP H022396B2 JP 58027708 A JP58027708 A JP 58027708A JP 2770883 A JP2770883 A JP 2770883A JP H022396 B2 JPH022396 B2 JP H022396B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- motor
- capacitor
- regenerative power
- diode
- 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 - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 32
- 230000001172 regenerating effect Effects 0.000 claims description 31
- 238000007599 discharging Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 4
- 230000004913 activation Effects 0.000 description 1
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
- H02P3/12—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 short-circuit or resistive braking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stopping Of Electric Motors (AREA)
- Control Of Direct Current Motors (AREA)
Description
【発明の詳細な説明】
本発明は整流回路と電動機駆動回路の間に接続
して回生電力の放電を行う電動機駆動における回
生電力放電回路に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a regenerative power discharging circuit for driving a motor, which is connected between a rectifier circuit and a motor driving circuit to discharge regenerative power.
従来形の回生電力放電回路が第１図に示され
る。回生電力放電回路１２は整流回路１１と電動
機および電動機駆動回路１３の間に接続され、電
動機２６において電力を必要とする時には整流回
路１１からの整流された電流を駆動回路へ送電
し、逆に電動機２６から電力が放出される時に
は、その回生電力を消費する。電動機駆動回路に
おける４個のトランジスタは、そのベース回路が
制御回路（図示せず）から制御されて電動機２６
を正または逆方向に回転させる。 A conventional regenerative power discharge circuit is shown in FIG. The regenerative power discharge circuit 12 is connected between the rectifier circuit 11 and the motor and motor drive circuit 13, and when the motor 26 requires power, it transmits the rectified current from the rectifier circuit 11 to the drive circuit, and vice versa. When power is released from 26, the regenerated power is consumed. The four transistors in the motor drive circuit have their base circuits controlled by a control circuit (not shown) to drive the motor 26.
rotate in the forward or reverse direction.
回生電力放電回路１２は第１のキヤパシタ２
１、ダイオード２２、抵抗２３、トランジスタ２
４、および第２のキヤパシタ２５を具備する。キ
ヤパシタ２１は整流回路１１からの整流電圧の平
滑を行うため整流回路１１の出力端に接続され
る。ダイオード２２は整流回路１１と駆動回路を
接続する２本の電源供給線の一方に、整流回路１
１側から電動機２６へ電力を供給する際に順方向
となるよう挿入される。キヤパシタ２５は駆動回
路の両端に接続され、キヤパシタ２５に並列に、
抵抗２３とトランジスタ２４の直列回路が接続さ
れる。トランジスタ２４のベースは、ダイオード
２２の両端の電圧に対応して制御出力を供給する
放電制御回路（図示せず）に接続される。 The regenerative power discharge circuit 12 is connected to the first capacitor 2
1, diode 22, resistor 23, transistor 2
4, and a second capacitor 25. Capacitor 21 is connected to the output end of rectifier circuit 11 in order to smooth the rectified voltage from rectifier circuit 11 . The diode 22 connects the rectifier circuit 1 to one of the two power supply lines connecting the rectifier circuit 11 and the drive circuit.
It is inserted so that it is in the forward direction when power is supplied to the electric motor 26 from the first side. The capacitor 25 is connected to both ends of the drive circuit, and in parallel to the capacitor 25,
A series circuit of a resistor 23 and a transistor 24 is connected. The base of transistor 24 is connected to a discharge control circuit (not shown) that provides a control output in response to the voltage across diode 22 .
上述のような構成によつて、整流回路１１から
電動機２６へ電力が供給される時はダイオード２
２を介して行われ、電動機２６側から電力が供給
される時は、ダイオード２２の両端に電位差が生
じ、この電位差が或定められた値以上となると放
電制御回路の出力によりトランジスタ２４を導通
状態にして、抵抗２３を駆動回路に接続して電動
機２６からの回生電力を放電し消費する。 With the above configuration, when power is supplied from the rectifier circuit 11 to the motor 26, the diode 2
2, and when power is supplied from the motor 26 side, a potential difference is generated across the diode 22, and when this potential difference exceeds a certain value, the output of the discharge control circuit turns the transistor 24 into a conductive state. Then, the resistor 23 is connected to the drive circuit to discharge and consume the regenerated power from the motor 26.
前述の回生電力放電回路１２において、電動機
が軽負荷状態または電動機よりキヤパシタ２５へ
電力が回生されている状態であつて、整流回路１
１へ印加される交流入力に第２図にその波形が示
されるような雑音が含まれる時には、雑音電圧に
より、その尖頭値でキヤパシタ２１が充電され
る。回生電力放電回路１２はキヤパシタ２１の両
端の電圧とキヤパシタ２５の両端の電圧の差、す
なわちダイオード２２の両端の電圧に対応して作
動するようになつているから、上述のようにキヤ
パシタ２１の両端の電圧が上ると放電回路は動作
しないようになり、回生電力の消費がなされなく
なる。従つてキヤパシタ２５の両端の電圧は上昇
し続ける。電動機駆動回路には、印加電圧がキヤ
パシタおよびトランジスタ等の回路要素の耐圧を
超えることを防ぐため、或値以上にキヤパシタ２
５の両端の電圧が上昇すると警報回路（図示せ
ず）が動作し、電動機２６の制御を中断するよう
になつている。従つて前述のように交流電源に雑
音があると、頻繁に警報回路が動作し、電動機２
６の制御が中断されてしまうという問題点が生ず
る。 In the regenerative power discharge circuit 12 described above, when the motor is in a light load state or in a state where power is being regenerated from the motor to the capacitor 25, the rectifier circuit 1
When the AC input applied to the capacitor 1 includes noise whose waveform is shown in FIG. 2, the capacitor 21 is charged by the noise voltage at its peak value. The regenerative power discharging circuit 12 operates in response to the difference between the voltage across the capacitor 21 and the voltage across the capacitor 25, that is, the voltage across the diode 22. When the voltage increases, the discharge circuit will no longer operate, and no regenerative power will be consumed. Therefore, the voltage across capacitor 25 continues to rise. In order to prevent the applied voltage from exceeding the withstand voltage of circuit elements such as capacitors and transistors, the motor drive circuit is equipped with a capacitor 2 above a certain value.
When the voltage across the motor 5 increases, an alarm circuit (not shown) is activated and the control of the electric motor 26 is interrupted. Therefore, as mentioned above, if there is noise in the AC power supply, the alarm circuit will frequently operate and the motor 2
A problem arises in that the control of No. 6 is interrupted.
また第３図に示されるように、第１図と同様な
回路が複数個、同一の交流電源に接続された場合
であつて、例えば上側の電動機２６が回生状態に
なつた時には、回生電流が図中に示される矢印の
ように、電動機２６から、駆動回路のダイオー
ド、キヤパシタ２１、整流回路の整流器、電源
線、下側の回路の整流回路の整流器、駆動回路の
トランジスタ、電動機２６′、および電動機と接
地との間の標遊容量とトランジスタ・ブリツジと
電動機のケーブルの静電容量（破線で表示）を介
して電動機２６へ戻り閉ループを形成する。これ
によりキヤパシタ２１の両端の電圧が上昇し、前
述した交流電源に雑音が含まれる場合と同様な問
題をひき起す。なお第３図において、上側の回路
には第１図と同様な参照番号を用いているが、下
側の回路には区別するため対応する番号にダツシ
ユを付加している。 Furthermore, as shown in FIG. 3, when a plurality of circuits similar to those in FIG. As shown by the arrow in the figure, from the motor 26, the diode of the drive circuit, the capacitor 21, the rectifier of the rectification circuit, the power supply line, the rectifier of the rectification circuit of the lower circuit, the transistor of the drive circuit, the motor 26', and A closed loop is formed back to the motor 26 via the stray capacitance between the motor and ground and the capacitance of the transistor bridge and motor cable (represented by dashed lines). This causes the voltage across the capacitor 21 to rise, causing a problem similar to the case where noise is included in the AC power supply described above. In FIG. 3, the same reference numbers as in FIG. 1 are used for the upper circuits, but a dash is added to the corresponding numbers for the lower circuits to distinguish them.
本発明の目的は、前述の従来形の回路における
問題点にかんがみ、整流回路の出力の両端に抵抗
を接続することによつて、交流電源に含まれる雑
音および複数個の回生電力放電回路における標遊
容量とケーブルの静電容量に起因する回わり込み
電流による第１のキヤパシタの電圧上昇を防止
し、回生電力放電回路が適正な動作を行うように
し、警報装置の動作による電動機制御の中断を避
けることにある。 SUMMARY OF THE INVENTION In view of the above-mentioned problems in the conventional circuit, an object of the present invention is to reduce the noise contained in an AC power supply and the standard in a plurality of regenerative power discharge circuits by connecting a resistor to both ends of the output of a rectifier circuit. Prevents voltage rise in the first capacitor due to loop current caused by free capacitance and cable capacitance, ensures proper operation of the regenerative power discharge circuit, and prevents interruption of motor control due to alarm device operation. It's about avoiding.
本発明においては、交流電源を整流した整流回
路出力と電動機を駆動する電動機駆動回路の間を
一方は直接、他方はダイオードを介して接続し、
該整流回路出力側に第１のキヤパシタを接続し、
該電動機駆動回路側に第２のキヤパシタおよび前
記ダイオードの両端の電圧に対応して抵抗をオ
ン・オフして回生電力を消費させる回生電力消費
回路を設けた電動機駆動における回生電力放電回
路において、該整流回路力出側に該第１のキヤパ
シタと並列に他の１つの抵抗を接続したことを特
徴とする電動機駆動における回生電力放電回路が
提供される。 In the present invention, the output of a rectifier circuit that rectifies an AC power source and the motor drive circuit that drives the motor are connected directly, one through a diode, and the other through a diode.
Connecting a first capacitor to the output side of the rectifier circuit,
In a regenerative power discharging circuit for driving a motor, the regenerative power discharging circuit for driving a motor is provided with a second capacitor and a regenerative power consumption circuit for consuming regenerative power by turning on and off a resistor in accordance with the voltage across the diode. There is provided a regenerative power discharging circuit for driving a motor, characterized in that another resistor is connected in parallel to the first capacitor on the output side of the rectifier circuit.
本発明の一実施例としての電動機駆動における
回生電力放電回路の回路図が第４図に示される。
図中、第１図の回路と同一の要素には同一の参照
番号が付加されている。該電動機駆動における回
生電力放電回路３１は整流回路１１と電動機およ
び電動機駆動回路１３の間に接続され、電動機２
６において電力を必要とする時には整流回路１１
からの整流された電流を電動機２６側へ送電し、
逆に電動機２６から電力が放出される時には、そ
の回生電力を消費する。電動機および電動機駆動
回路１３は電動機２６および電動機駆動回路より
成る。電動機駆動回路における４個のトランジス
タは、そのベース回路が制御回路（図示せず）か
ら制御されて、電動機２６を正または逆方向に回
転させる。 A circuit diagram of a regenerative power discharging circuit for driving a motor as an embodiment of the present invention is shown in FIG.
In the figure, the same elements as in the circuit of FIG. 1 are given the same reference numerals. The regenerative power discharge circuit 31 for driving the motor is connected between the rectifier circuit 11 and the motor and motor drive circuit 13, and
When power is required in 6, the rectifier circuit 11
Transmits the rectified current from to the motor 26 side,
Conversely, when electric power is released from the electric motor 26, the regenerated electric power is consumed. The motor and motor drive circuit 13 consists of a motor 26 and a motor drive circuit. The base circuits of the four transistors in the motor drive circuit are controlled by a control circuit (not shown) to rotate the motor 26 in the forward or reverse direction.
回生電力放電回路３１は抵抗３２、第１のキヤ
パシタ２１、ダイオード２２、抵抗２３、トラン
ジスタ２４、および第２のキヤパシタ２５を具備
する。回生電力放電回路３１は前述の従来形回路
に比べ、抵抗３２が追加される以外同一である。
キヤパシタ２１は整流回路１１の出力端に接続さ
れる。ダイオード２２は整流回路１１と電動機駆
動回路を接続する２本の電源供給線の一方に、整
流回路１１側から電動機２６へ電力を供給する際
に順方向となるよう挿入される。電源供給線の他
方は直接接続される。キヤパシタ２５は電動機駆
動回路の入力側の両端に接続され、キヤパシタ２
５に並列に、抵抗２３とトランジスタ２４の直列
回路が接続される。トランジスタ２４のベース
は、ダイオード２２の両端の電圧に対応して制御
出力を供給する放電制御回路（図示せず）に接続
される。 The regenerative power discharge circuit 31 includes a resistor 32 , a first capacitor 21 , a diode 22 , a resistor 23 , a transistor 24 , and a second capacitor 25 . The regenerative power discharge circuit 31 is the same as the conventional circuit described above except for the addition of a resistor 32.
Capacitor 21 is connected to the output end of rectifier circuit 11 . The diode 22 is inserted into one of the two power supply lines connecting the rectifier circuit 11 and the motor drive circuit so that it is in the forward direction when power is supplied from the rectifier circuit 11 side to the motor 26 . The other power supply line is directly connected. The capacitor 25 is connected to both ends of the input side of the motor drive circuit.
A series circuit of a resistor 23 and a transistor 24 is connected in parallel to the transistor 5. The base of transistor 24 is connected to a discharge control circuit (not shown) that provides a control output in response to the voltage across diode 22 .
整流回路１１は交流電源からの送電を受け整流
器によつて直流に変換する回路である。 The rectifier circuit 11 is a circuit that receives power transmitted from an AC power source and converts it into DC using a rectifier.
本実施例においては、キヤパシタ２１に並列に
抵抗３２が設けられているから、前述の従来形回
路におけるキヤパシタ２１と異なり、充電された
電荷を抵抗３２を通して放電して、キヤパシタ２
１の両端の電圧の上昇を交流入力に雑音がない場
合の整流回路出力電圧に保持することができる。 In this embodiment, since the resistor 32 is provided in parallel with the capacitor 21, unlike the capacitor 21 in the conventional circuit described above, the charged electric charge is discharged through the resistor 32 and the capacitor 2
1 can be maintained at the rectifier circuit output voltage when there is no noise in the AC input.
本発明によれば、交流電源に含まれる雑音およ
び複数個の回生電力放電回路における標遊容量と
ケーブルの容量に起因する回わり込み電流による
第１のキヤパシタの電圧上昇を防止し、回生電力
放電回路が適正な動作を行うようにし、警報装置
の動作による電動機制御の中断を避けることがで
きる。 According to the present invention, it is possible to prevent the voltage increase of the first capacitor due to the noise contained in the AC power supply and the bypass current caused by the stray capacitance and cable capacity in the plurality of regenerative power discharge circuits, and to discharge the regenerative power. This allows the circuit to operate properly and prevents interruption of motor control due to activation of the alarm device.
第１図は従来形の回生電力放電回路を示す回路
図、第２図は雑音を有する交流入力波形を例示す
る波形図、第３図は従来形の回生電力放電回路を
２回路並記した回路図、および第４図は本発明の
一実施例としての電動機駆動における回生電力放
電回路を示す回路図である。
１１……整流回路、１２……回生電力放電回
路、１３……電動機および電動機駆動回路、２
１，２１′……第１のキヤパシタ、２２，２２′…
…ダイオード、２３，２３′……抵抗、２４，２
４′……トランジスタ、２５，２５′……第２のキ
ヤパシタ、２６，２６′……電動機、３１……電
動機駆動における回生電力放電回路、３２……抵
抗。
Figure 1 is a circuit diagram showing a conventional regenerative power discharge circuit, Figure 2 is a waveform diagram illustrating an AC input waveform with noise, and Figure 3 is a circuit in which two conventional regenerative power discharge circuits are arranged side by side. FIG. 4 and FIG. 4 are circuit diagrams showing a regenerative power discharging circuit for driving a motor as an embodiment of the present invention. 11... Rectifier circuit, 12... Regenerative power discharge circuit, 13... Motor and motor drive circuit, 2
1, 21'...first capacitor, 22, 22'...
...Diode, 23,23'...Resistor, 24,2
4'...Transistor, 25, 25'...Second capacitor, 26, 26'...Motor, 31...Regenerative power discharging circuit in motor drive, 32...Resistor.
Claims (1)
駆動する電動機駆動回路の間を一方は直接、他方
はダイオードを介して接続し、該整流回路出力側
に第１のキヤパシタを接続し、該電動機駆動回路
側に第２のキヤパシタおよび前記ダイオードの両
端の電圧に対応して抵抗をオン・オフして回生電
力を消費させる回生電力消費回路を設けた電動機
駆動における回生電力放電回路において、該整流
回路出力側に該第１のキヤパシタと並列に他の１
つの抵抗を接続したことを特徴とする電動機駆動
における回生電力放電回路。1 Connect the output of a rectifier circuit that rectifies the AC power source and the motor drive circuit that drives the motor, one directly and the other through a diode, connect a first capacitor to the output side of the rectifier circuit, and connect the motor drive circuit that drives the motor. In a regenerative power discharging circuit for driving a motor, the regenerative power discharging circuit for driving a motor is provided with a second capacitor and a regenerative power consumption circuit for consuming regenerative power by turning on and off a resistor in response to the voltage across the diode on the circuit side. another one in parallel with the first capacitor on the side
A regenerative power discharge circuit for driving a motor, characterized in that two resistors are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58027708A JPS59156175A (en) | 1983-02-23 | 1983-02-23 | Regenerative power discharging circuit in motor drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58027708A JPS59156175A (en) | 1983-02-23 | 1983-02-23 | Regenerative power discharging circuit in motor drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59156175A JPS59156175A (en) | 1984-09-05 |
| JPH022396B2 true JPH022396B2 (en) | 1990-01-17 |
Family
ID=12228492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58027708A Granted JPS59156175A (en) | 1983-02-23 | 1983-02-23 | Regenerative power discharging circuit in motor drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59156175A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02261798A (en) * | 1989-03-31 | 1990-10-24 | Kensetsusho Chubu Chiho Kensetsukyoku | Cargo shifting device and method therefor |
| JPH0678318U (en) * | 1991-03-29 | 1994-11-04 | 大塚化学株式会社 | Support structure for moving heavy objects |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019126242A (en) * | 2018-01-15 | 2019-07-25 | 株式会社フェニックス | Motor drive circuit |
-
1983
- 1983-02-23 JP JP58027708A patent/JPS59156175A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02261798A (en) * | 1989-03-31 | 1990-10-24 | Kensetsusho Chubu Chiho Kensetsukyoku | Cargo shifting device and method therefor |
| JPH0678318U (en) * | 1991-03-29 | 1994-11-04 | 大塚化学株式会社 | Support structure for moving heavy objects |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59156175A (en) | 1984-09-05 |
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