JPH09261994A - Motor speed control device - Google Patents
Motor speed control deviceInfo
- Publication number
- JPH09261994A JPH09261994A JP8062304A JP6230496A JPH09261994A JP H09261994 A JPH09261994 A JP H09261994A JP 8062304 A JP8062304 A JP 8062304A JP 6230496 A JP6230496 A JP 6230496A JP H09261994 A JPH09261994 A JP H09261994A
- Authority
- JP
- Japan
- Prior art keywords
- bidirectional thyristor
- electric motor
- speed
- speed control
- winding
- 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
Links
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
(57)【要約】
【課題】 本発明の目的は、電動機の巻線を太くし、巻
数を減少させ、断線を少なくして信頼性を向上するとと
もに、騒音を削減し、広範囲の速度制御を可能とした電
動機の速度制御装置を提供することにある。
【解決手段】 交流電源６の一端を第一の双方向サイリ
スタ５ａの一端に接続し、同双方向サイリスタの他端を
コンデンサ４及び主巻線２の一端に接続し、同主巻線の
他端を第二の双方向サイリスタ５ｂの一端に接続し、同
第二の双方向サイリスタの他端と前記コンデンサの他端
を補助巻線３の一端に接続し、同補助巻線の他端を前記
交流電源６の他端に接続して直列相結線方式の電動機を
構成し、前記第一の双方向サイリスタと第二の双方向サ
イリスタによる位相制御により、中速運転、高速回転、
低速回転時の速度の制御手段を設ける。
(57) [Summary] The object of the present invention is to increase the thickness of windings of an electric motor, reduce the number of windings, reduce disconnection, improve reliability, reduce noise, and control speed over a wide range. An object of the present invention is to provide a speed control device for an electric motor that is enabled. SOLUTION: One end of an AC power supply 6 is connected to one end of a first bidirectional thyristor 5a, the other end of the bidirectional thyristor is connected to one end of a capacitor 4 and a main winding 2, and the other main winding is connected. The end is connected to one end of the second bidirectional thyristor 5b, the other end of the second bidirectional thyristor and the other end of the capacitor are connected to one end of the auxiliary winding 3, and the other end of the auxiliary winding is connected. By connecting to the other end of the AC power source 6 to form a serial phase connection type electric motor, phase control by the first bidirectional thyristor and the second bidirectional thyristor enables medium speed operation, high speed rotation,
A means for controlling the speed at low speed rotation is provided.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は電動機の速度制御装
置に係り、その構成要素の接続方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speed control device for an electric motor, and relates to a method of connecting its constituent elements.
【０００２】[0002]
【従来の技術】双方向サイリスタによる位相制御にて、
電動機のトルクを変えて同電動機の速度を制御する電動
機の速度制御装置において、図３の接続図に示す如く、
電動機１の速度制御装置は、交流電源６の一端に双方向
サイリスタ５の一端を接続し、同双方向サイリスタの他
端に主巻線２及び補助巻線３の一端を接続し、同補助巻
線の他端にコンデンサ４の一端を接続し、同コンデンサ
の他端と前記主巻線の他端を並列に、前記交流電源の他
端に接続すると共に、トリガー回路７を設け、図４のタ
イミング図に示す如く、前記双方向サイリスタによる位
相制御による速度の制御手段を設けていた。しかしなが
ら、電源電圧が２００−２４０Ｖの場合、巻線の線径が
細くなり、巻数が多くなって材料費及び加工費が増加
し、断線も起こり易くなり品質を低下させる一方、騒音
が大きく、また広範囲に速度制御出来ない問題があっ
た。2. Description of the Related Art Phase control by a bidirectional thyristor
In a speed control device for an electric motor that controls the speed of the electric motor by changing the torque of the electric motor, as shown in the connection diagram of FIG.
The speed control device for the electric motor 1 connects one end of the bidirectional thyristor 5 to one end of the AC power supply 6, connects one end of the main winding 2 and the auxiliary winding 3 to the other end of the bidirectional thyristor, and connects the auxiliary winding. One end of the capacitor 4 is connected to the other end of the wire, the other end of the capacitor and the other end of the main winding are connected in parallel to the other end of the AC power source, and the trigger circuit 7 is provided. As shown in the timing chart, the speed control means is provided by the phase control by the bidirectional thyristor. However, when the power supply voltage is 200 to 240 V, the wire diameter of the winding becomes thin, the number of windings increases, the material cost and the processing cost increase, and the disconnection easily occurs and the quality deteriorates, while the noise is large, and There was a problem that speed could not be controlled over a wide range.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、電動
機の巻線を太くし、巻数を減少させ、断線を少なくして
信頼性を向上するとともに、騒音を削減し、広範囲の速
度制御を可能とした電動機の速度制御装置を提供するこ
とにある。SUMMARY OF THE INVENTION It is an object of the present invention to increase the thickness of windings of a motor, reduce the number of windings, reduce disconnections, improve reliability, reduce noise, and control a wide range of speeds. An object of the present invention is to provide a speed control device for an electric motor that is enabled.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、交流電源の一端を第一の双方向サイリスタ
の一端に接続し、同双方向サイリスタの他端をコンデン
サ及び主巻線の一端に接続し、同主巻線の他端を第二の
双方向サイリスタの一端に接続し、同第二の双方向サイ
リスタの他端と前記コンデンサの他端を補助巻線の一端
に接続し、同補助巻線の他端を前記交流電源の他端に接
続して直列相結線方式の電動機を構成し、前記第一の双
方向サイリスタと第二の双方向サイリスタによる位相制
御による速度の制御手段を設けるようにする。また、前
記第一の双方向サイリスタによる位相制御と、前記第二
の双方向サイリスタによる位相制御とを前記交流電源の
半周期の中で連動し、所定の中速回転に制御する。ある
いは、高速回転時に、前記第一の双方向サイリスタを連
続ＯＮとし、前記第二の双方向サイリスタによる位相制
御のみで制御する。そして、低速回転時に、前記第一の
双方向サイリスタ、及び前記第二の双方向サイリスタに
よる位相制御により同時制御する。一方、運転開始時
に、前記第一の双方向サイリスタを連続ＯＮとし、前記
第二の双方向サイリスタによる位相制御のみで制御す
る。そして、前記第一の双方向サイリスタによる位相制
御を、前記第二の双方向サイリスタによる位相制御より
も先行する。さらに、前記電動機の主巻線の電流と補助
巻線の電流との位相差を、略π／２となるようにする。
そして、前記速度の制御手段が、前記主巻線と前記補助
巻線のアンペアタ−ンを一定にするようにして制御す
る。あるいは、前記速度の制御手段が、前記主巻線と前
記補助巻線の電流の比を、前記補助巻線と前記主巻線の
有効巻線比とほぼ等しくなるように制御する。他方、前
記双方向サイリスタを、前記電動機本体に内蔵してなる
ようにする。In order to solve the above-mentioned problems, the present invention connects one end of an AC power supply to one end of a first bidirectional thyristor, and connects the other end of the bidirectional thyristor to a capacitor and a main winding. , The other end of the main winding is connected to one end of the second bidirectional thyristor, and the other end of the second bidirectional thyristor and the other end of the capacitor are connected to one end of the auxiliary winding. Then, the other end of the auxiliary winding is connected to the other end of the AC power source to form a serial phase connection type electric motor, and the speed is controlled by the phase control by the first bidirectional thyristor and the second bidirectional thyristor. Control means should be provided. Further, the phase control by the first bidirectional thyristor and the phase control by the second bidirectional thyristor are interlocked in a half cycle of the AC power supply to control to a predetermined medium speed rotation. Alternatively, at the time of high speed rotation, the first bidirectional thyristor is continuously turned on, and control is performed only by phase control by the second bidirectional thyristor. Then, at the time of low speed rotation, simultaneous control is performed by phase control by the first bidirectional thyristor and the second bidirectional thyristor. On the other hand, when the operation is started, the first bidirectional thyristor is continuously turned on, and the second bidirectional thyristor controls only the phase control. The phase control by the first bidirectional thyristor precedes the phase control by the second bidirectional thyristor. Further, the phase difference between the current in the main winding and the current in the auxiliary winding of the electric motor is set to be approximately π / 2.
Then, the speed control means controls the main winding and the auxiliary winding so as to keep the ampere turn constant. Alternatively, the speed control means controls the current ratio between the main winding and the auxiliary winding to be substantially equal to the effective winding ratio between the auxiliary winding and the main winding. On the other hand, the bidirectional thyristor is built in the motor body.
【０００５】[0005]
【発明の実施の形態】交流電源の一端を第一の双方向サ
イリスタの一端に接続し、同双方向サイリスタの他端を
コンデンサ及び主巻線の一端に接続し、同主巻線の他端
を第二の双方向サイリスタの一端に接続し、同第二の双
方向サイリスタの他端と前記コンデンサの他端を補助巻
線の一端に接続し、同補助巻線の他端を前記交流電源の
他端に接続して直列相結線方式の電動機を構成し、前記
第一の双方向サイリスタと第二の双方向サイリスタによ
る位相制御による速度の制御手段を設けてなるように
し、電動機の巻線を太くし、巻数を減少させ、低騒音で
広範囲に速度制御が出来るようにする。BEST MODE FOR CARRYING OUT THE INVENTION One end of an AC power supply is connected to one end of a first bidirectional thyristor, the other end of which is connected to one end of a capacitor and a main winding, and the other end of the main winding is connected. Is connected to one end of a second bidirectional thyristor, the other end of the second bidirectional thyristor and the other end of the capacitor are connected to one end of an auxiliary winding, and the other end of the auxiliary winding is connected to the AC power supply. To form a serial phase connection type electric motor connected to the other end of the electric motor, and to provide a speed control means by phase control by the first bidirectional thyristor and the second bidirectional thyristor. Thicker, reduce the number of turns, and enable low speed noise control over a wide range.
【０００６】[0006]
【実施例】以下、図面に基づいて本発明による電動機の
速度制御装置の実施例を詳細に説明する。ここで、従来
例と同じ部分の符号は同一とする。図１は本発明による
電動機の速度制御装置の接続図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a motor speed control device according to the present invention will be described below in detail with reference to the drawings. Here, the same parts as those in the conventional example are denoted by the same reference numerals. FIG. 1 is a connection diagram of a motor speed control device according to the present invention.
【０００７】双方向サイリスタによる位相制御にて、電
動機のトルクを変えて同電動機の速度を制御する電動機
１の速度制御装置を構成する。ここで、交流電源６の一
端を第一の双方向サイリスタ５ａの一端に接続し、同双
方向サイリスタの他端をコンデンサ４及び主巻線２の一
端に接続し、同主巻線の他端を第二の双方向サイリスタ
５ｂの一端に接続し、同第二の双方向サイリスタの他端
と前記コンデンサの他端を補助巻線３の一端に接続し、
同補助巻線の他端を前記交流電源６の他端に接続して直
列相結線方式の電動機を構成する。それとともに、前記
第一の双方向サイリスタと第二の双方向サイリスタのゲ
ートに第一トリガー回路７ａと第二トリガー回路７ｂを
接続し、位相制御による速度の制御手段を設ける。次い
で、電動機の中速運転、高速回転、低速回転時の制御に
ついて説明する。また、前記第一の双方向サイリスタに
よる位相制御と、前記第二の双方向サイリスタによる位
相制御とを前記交流電源の半周期の中で連動し、所定の
中速回転に制御する。そして、高速回転時には、前記第
一の双方向サイリスタを連続ＯＮとし、前記第二の双方
向サイリスタによる位相制御のみで制御する。これは、
前記コンデンサ４に正弦波状に近い電流が流れ振動、騒
音の改善、及び効率の向上ができるためである。また、
低速回転時には、前記第一の双方向サイリスタ、及び前
記第二の双方向サイリスタによる位相制御により同時制
御する。このようにして、前記第一の双方向サイリスタ
と第二の双方向サイリスタによる位相制御による電動機
の速度制御装置を構成する。一方、運転開始直後に、前
記第一の双方向サイリスタを連続ＯＮとし、前記第二の
双方向サイリスタによる位相制御のみで制御する。これ
は、電動機の回転を素早く立ち上げるためである。そし
て、前記第一の双方向サイリスタによる位相制御を、前
記第二の双方向サイリスタによる位相制御よりも先行し
てなるようにする。さらに、前記電動機の主巻線の電流
と補助巻線の電流との位相差を、略π／２となるように
する。この位相制御は、図２に示すように、第一トリガ
ー回路と第二トリガー回路により行われる。そして、前
記速度の制御手段が、前記主巻線と前記補助巻線のアン
ペアタ−ンを一定にするようにして制御する。あるい
は、前記速度の制御手段が、前記主巻線と前記補助巻線
の電流の比を、前記補助巻線と前記主巻線の有効巻線比
とほぼ等しくする。他方、前記第一、第二の双方向サイ
リスタを、前記電動機本体１に内蔵するようにしてもよ
い。このようにして、騒音を削減し、広範囲の速度制御
を可能とした電動機の速度制御装置を提供する。A speed control device for the electric motor 1 is constructed which controls the speed of the electric motor by changing the torque of the electric motor by phase control by a bidirectional thyristor. Here, one end of the AC power supply 6 is connected to one end of the first bidirectional thyristor 5a, the other end of the bidirectional thyristor is connected to one end of the capacitor 4 and the main winding 2, and the other end of the main winding is connected. Is connected to one end of the second bidirectional thyristor 5b, and the other end of the second bidirectional thyristor and the other end of the capacitor are connected to one end of the auxiliary winding 3.
The other end of the auxiliary winding is connected to the other end of the AC power source 6 to form a serial phase connection type electric motor. At the same time, the first trigger circuit 7a and the second trigger circuit 7b are connected to the gates of the first bidirectional thyristor and the second bidirectional thyristor, and a speed control means by phase control is provided. Next, a description will be given of the control of the electric motor during medium speed operation, high speed rotation, and low speed rotation. Further, the phase control by the first bidirectional thyristor and the phase control by the second bidirectional thyristor are interlocked in a half cycle of the AC power supply to control to a predetermined medium speed rotation. Then, at the time of high speed rotation, the first bidirectional thyristor is continuously turned on and controlled only by the phase control by the second bidirectional thyristor. this is,
This is because a sinusoidal current flows through the capacitor 4 to improve vibration, noise, and efficiency. Also,
At the time of low speed rotation, simultaneous control is performed by phase control by the first bidirectional thyristor and the second bidirectional thyristor. Thus, the speed control device for the electric motor is constructed by the phase control by the first bidirectional thyristor and the second bidirectional thyristor. On the other hand, immediately after the start of operation, the first bidirectional thyristor is continuously turned on, and the phase is controlled only by the phase control by the second bidirectional thyristor. This is to quickly start the rotation of the electric motor. The phase control by the first bidirectional thyristor precedes the phase control by the second bidirectional thyristor. Further, the phase difference between the current in the main winding and the current in the auxiliary winding of the electric motor is set to be approximately π / 2. This phase control is performed by the first trigger circuit and the second trigger circuit, as shown in FIG. Then, the speed control means controls the main winding and the auxiliary winding so as to keep the ampere turn constant. Alternatively, the speed control means makes the ratio of the currents of the main winding and the auxiliary winding substantially equal to the effective winding ratio of the auxiliary winding and the main winding. On the other hand, the first and second bidirectional thyristors may be incorporated in the electric motor body 1. In this way, a speed control device for an electric motor that reduces noise and enables speed control over a wide range is provided.
【０００８】[0008]
【発明の効果】以上に説明したように、前記電動機の主
巻線と第一の双方向サイリスタとを直列に接続してなる
回路に、コンデンサを並列に接続し、その一端に直列に
第二の双方向サイリスタと他端に補助巻線を直列に接続
し、前記電動機に交流電源を印加すると共に、前記第一
の双方向サイリスタと第二の双方向サイリスタによる位
相制御による速度の制御手段を設けてなるので、電動機
の巻線を太くし、巻数を減少させ、断線を少なくして信
頼性を向上するとともに、騒音を削減し、広範囲に速度
制御が出来る電動機の速度制御装置を提供することがで
きる。As described above, the capacitor is connected in parallel to the circuit formed by connecting the main winding of the electric motor and the first bidirectional thyristor in series, and one end of the capacitor is connected in series. Of the bidirectional thyristor and an auxiliary winding connected in series to the other end of the bidirectional thyristor to apply an AC power supply to the electric motor, and to provide a speed control means by phase control by the first bidirectional thyristor and the second bidirectional thyristor. Since it is provided, the winding of the electric motor is thickened, the number of turns is reduced, the disconnection is reduced to improve reliability, noise is reduced, and the speed control device of the electric motor capable of speed control in a wide range is provided. You can
【図１】本発明による電動機の速度制御装置の一実施例
を示す接続図である。FIG. 1 is a connection diagram showing one embodiment of a motor speed control device according to the present invention.
【図２】本発明による電動機の速度制御装置の一実施例
を示すタイミング図である。FIG. 2 is a timing diagram showing an embodiment of a speed control device for an electric motor according to the present invention.
【図３】従来の電動機の速度制御装置の一例を示す接続
図である。FIG. 3 is a connection diagram showing an example of a conventional motor speed control device.
【図４】従来の電動機の速度制御装置の一例を示すタイ
ミング図である。FIG. 4 is a timing chart showing an example of a conventional motor speed control device.
１ 電動機本体 ２ 主巻線 ３ 補助巻線 ４ コンデンサ ５ａ 第一の双方向サイリスタ ５ｂ 第二の双方向サイリスタ ６ 交流電源 ７ａ 第一トリガ−回路 ７ｂ 第二トリガ−回路 1 Motor Main Body 2 Main Winding 3 Auxiliary Winding 4 Capacitor 5a First Bidirectional Thyristor 5b Second Bidirectional Thyristor 6 AC Power Supply 7a First Trigger-Circuit 7b Second Trigger-Circuit
Claims (7)
タの一端に接続し、同双方向サイリスタの他端をコンデ
ンサ及び主巻線の一端に接続し、同主巻線の他端を第二
の双方向サイリスタの一端に接続し、同第二の双方向サ
イリスタの他端と前記コンデンサの他端を補助巻線の一
端に接続し、同補助巻線の他端を前記交流電源の他端に
接続して直列相結線方式の電動機を構成し、前記第一の
双方向サイリスタと第二の双方向サイリスタによる位相
制御による速度の制御手段を設け、前記第一の双方向サ
イリスタによる位相制御と、前記第二の双方向サイリス
タによる位相制御とを前記交流電源の半周期の中で連動
し、所定の中速回転に制御し、高速回転時に、前記第一
の双方向サイリスタを連続ＯＮとし、前記第二の双方向
サイリスタによる位相制御のみで制御し、低速回転時
に、前記第一の双方向サイリスタ、及び前記第二の双方
向サイリスタによる位相制御により同時制御してなるこ
とを特徴とする電動機の速度制御装置。1. An AC power source is connected to one end of a first bidirectional thyristor, the other end of the bidirectional thyristor is connected to one end of a capacitor and a main winding, and the other end of the main winding is connected to a first end. The second bidirectional thyristor is connected to one end, the other end of the second bidirectional thyristor and the other end of the capacitor are connected to one end of the auxiliary winding, and the other end of the auxiliary winding is connected to the other side of the AC power supply. A serial phase connection type electric motor is configured by being connected to an end, a speed control means is provided by phase control by the first bidirectional thyristor and the second bidirectional thyristor, and the phase control by the first bidirectional thyristor is provided. And the phase control by the second bidirectional thyristor are interlocked within a half cycle of the AC power source to control to a predetermined medium speed rotation, and at the time of high speed rotation, the first bidirectional thyristor is continuously turned on. , The position of the second bidirectional thyristor A speed control device for an electric motor, which is controlled only by phase control, and is simultaneously controlled by phase control by the first bidirectional thyristor and the second bidirectional thyristor during low speed rotation.
スタを連続ＯＮとし、前記第二の双方向サイリスタによ
る位相制御のみで制御してなることを特徴とする請求項
１記載の電動機の速度制御装置。2. The speed of the electric motor according to claim 1, wherein the first bidirectional thyristor is continuously turned on at the start of operation, and is controlled only by phase control by the second bidirectional thyristor. Control device.
制御を、前記第二の双方向サイリスタによる位相制御よ
りも先行してなることを特徴とする請求項１記載の電動
機の速度制御装置。3. The speed control device for an electric motor according to claim 1, wherein the phase control by the first bidirectional thyristor precedes the phase control by the second bidirectional thyristor.
電流との位相差を、略π／２となるようにしてなること
を特徴とする請求項１記載の電動機の速度制御装置。4. The motor speed control device according to claim 1, wherein the phase difference between the current of the main winding and the current of the auxiliary winding of the motor is substantially π / 2. .
記補助巻線のアンペアタ−ンを一定にするようにして制
御してなることを特徴とする請求項１記載の電動機の速
度制御装置。5. The speed control of the electric motor according to claim 1, wherein the speed control means controls the main winding and the auxiliary winding so as to keep the ampere turn constant. apparatus.
記補助巻線の電流の比を、前記補助巻線と前記主巻線の
有効巻線比とほぼ等しくなるように制御してなることを
特徴とする請求項１記載の電動機の速度制御装置。6. The speed control means controls the ratio of the currents of the main winding and the auxiliary winding to be substantially equal to the effective winding ratio of the auxiliary winding and the main winding. The speed control device for an electric motor according to claim 1, wherein:
体に内蔵してなることを特徴とする請求項１記載の電動
機の速度制御装置。7. The motor speed control device according to claim 1, wherein the bidirectional thyristor is built in the motor body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8062304A JPH09261994A (en) | 1996-03-19 | 1996-03-19 | Motor speed control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8062304A JPH09261994A (en) | 1996-03-19 | 1996-03-19 | Motor speed control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09261994A true JPH09261994A (en) | 1997-10-03 |
Family
ID=13196272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8062304A Pending JPH09261994A (en) | 1996-03-19 | 1996-03-19 | Motor speed control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09261994A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870295B2 (en) | 2001-01-22 | 2005-03-22 | Lg Electronics Inc. | Oscillating motor and motor control apparatus and method |
| JP2007252049A (en) * | 2006-03-14 | 2007-09-27 | Toshiba Mitsubishi-Electric Industrial System Corp | Single-phase induction motor using magnetic energy regenerative current switch |
-
1996
- 1996-03-19 JP JP8062304A patent/JPH09261994A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6870295B2 (en) | 2001-01-22 | 2005-03-22 | Lg Electronics Inc. | Oscillating motor and motor control apparatus and method |
| JP2007252049A (en) * | 2006-03-14 | 2007-09-27 | Toshiba Mitsubishi-Electric Industrial System Corp | Single-phase induction motor using magnetic energy regenerative current switch |
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