JPS6188764A - Thyristor type ac power controller - Google Patents
Thyristor type ac power controllerInfo
- Publication number
- JPS6188764A JPS6188764A JP20973384A JP20973384A JPS6188764A JP S6188764 A JPS6188764 A JP S6188764A JP 20973384 A JP20973384 A JP 20973384A JP 20973384 A JP20973384 A JP 20973384A JP S6188764 A JPS6188764 A JP S6188764A
- Authority
- JP
- Japan
- Prior art keywords
- thyristor
- pulse
- gate
- supplied
- thyristors
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Power Conversion In General (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、サイリスタ式交流電力制御装置に係り、特に
、逆並列接続されたサイリスタ回路を多数個直列接続し
たサイリスタ式交流電力制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a thyristor-type AC power control device, and particularly to a thyristor-type AC power control device in which a large number of thyristor circuits connected in antiparallel are connected in series.
第４図は従来よく用いられる高電圧サイリスタ式交流制
御装置の主回路部分の回路図であり、第５図は各部の信
号を示すが簡単のため、二直列の場合で説明する。［東
芝レビュー（３７巻１０号）Ｐ８９６］
以下、各サイリスタにゲートパルスが伝送されるまでの
動作について説明する。大地電位に設置されたゲート制
御装置よυ、サイリスタ４−１゜４−３を点弧させるた
めの点弧信号（光信号）ａ−１をライトガイド８−１を
介して主回路電位に設置されたパルス増幅器６−１に伝
送し、パルス増幅器のホ）ｌ−ランジスタフ−１によυ
光／電気変換し、さらに、この点弧信号を増幅し、パル
ストランス５−１で絶縁してサイリスタ４−１．４−３
にゲートパルスｂ−１として供給する。サイリスタ４−
２．４−４についても同様である。FIG. 4 is a circuit diagram of the main circuit portion of a conventional high-voltage thyristor type AC control device, and FIG. 5 shows the signals of each part, but for the sake of simplicity, the case of two series circuits will be explained. [Toshiba Review (Vol. 37, No. 10) P896] The operation up to the time when a gate pulse is transmitted to each thyristor will be described below. The gate control device υ installed at the ground potential, the ignition signal (light signal) a-1 for firing the thyristors 4-1 and 4-3 is installed at the main circuit potential via the light guide 8-1. is transmitted to the pulse amplifier 6-1, and
After optical/electrical conversion, this firing signal is further amplified, insulated by a pulse transformer 5-1, and then connected to a thyristor 4-1.4-3.
is supplied as gate pulse b-1. Thyristor 4-
The same applies to 2.4-4.
従って、従来方式では逆並列接続されたサイリスタを夫
々点弧させるための二つのゲート点弧回路を必要として
いる。これは、逆並列接続されたサイリスタに共通のゲ
ートパルスを供給すると一方に順電圧が印加されている
時には他方には逆電圧が印加されておシ、逆電圧印加中
にゲートパルスを供給するとサイリスタを劣化させるた
めに別別のゲートパルスを供給する必要があるためであ
る。Therefore, the conventional system requires two gate firing circuits to respectively fire the anti-parallel connected thyristors. This means that when a common gate pulse is supplied to thyristors connected in antiparallel, when a forward voltage is applied to one, a reverse voltage is applied to the other, and when a gate pulse is supplied while a reverse voltage is being applied, the thyristors This is because it is necessary to supply another gate pulse to degrade the
本発明の目的は、部品点数の少ない信頼性の高いサイリ
スタ式交流電力制御装置を提供することにある。An object of the present invention is to provide a highly reliable thyristor-type AC power control device with a small number of parts.
本発明の要点は、逆並列接続されたサイリスタの点弧信
号として共通の一つの点弧信号を用い、サイリスタに印
加されている電圧が順方向の時にのみ導７通するスイッ
チをサイリスタのゲートに直列に挿入したことにある。The main point of the present invention is to use one common firing signal as the firing signal for the thyristors connected in antiparallel, and to attach a switch to the gate of the thyristor that conducts only when the voltage applied to the thyristor is in the forward direction. This is because they were inserted in series.
本発明の一実施例を第１図に、各部波形を第２図に示す
。本図は簡単化のため、サイリスター直列の場合につい
て示しである。An embodiment of the present invention is shown in FIG. 1, and waveforms of various parts are shown in FIG. 2. For simplicity, this figure shows the case of thyristors connected in series.
大地電位に設置されたゲート制御装置９よυ、逆並列接
続されたサイリスタ４−１．４−２に共通の点弧信号（
光信号）ａをライトガイド８を介して、主回路電位に設
置されたパルス増幅器６に伝送し、パルス増幅器６のホ
トトランジスタ７により光／電気変換し、さらに、この
信号を増幅し、パルストランス５で絶縁し、ゲートパル
スとしてパルストランス５の二次巻線まで供給する。こ
こでサイリスタ４−１に順電圧が印加されている場合に
は、抵抗器３によって制限される電流がダイオード１１
−２〜抵抗器３〜ホトカブラ１０−１の発光ダイオード
側へと流れ、ホトカプラ１〇−１のホトトランジスタ側
は導通となシ、パルストランス５の二次巻線まで供給さ
れたゲートパルスはホトカプラ１０−１を通過してサイ
リスタ４−１に供給される。サイリスタ４−２について
は、この時、逆電圧が印加されているため、ホトカプラ
１０−２のダイオード側には電流が流れず、従って、ホ
トトランジスタ側も導通しないため、パルストランス５
の二次巻線にまで供給されたゲートパルスはサイリスタ
４−２には供給されない。The gate control device 9 installed at ground potential and the ignition signal (
The optical signal a) is transmitted via the light guide 8 to the pulse amplifier 6 installed at the main circuit potential, optically/electrically converted by the phototransistor 7 of the pulse amplifier 6, and then this signal is amplified. 5 and supplies it to the secondary winding of the pulse transformer 5 as a gate pulse. Here, when a forward voltage is applied to the thyristor 4-1, the current limited by the resistor 3 flows through the diode 11.
-2~resistor 3~to the light emitting diode side of the photocoupler 10-1, the phototransistor side of the photocoupler 10-1 is not conductive, and the gate pulse supplied to the secondary winding of the pulse transformer 5 is passed through the photocoupler 10-1. It passes through 10-1 and is supplied to thyristor 4-1. As for the thyristor 4-2, since a reverse voltage is applied at this time, no current flows to the diode side of the photocoupler 10-2, and therefore, the phototransistor side is also not conductive, so the pulse transformer 5
The gate pulse that has been supplied to the secondary winding of is not supplied to the thyristor 4-2.
なお、フォトカプラーの受光側の電流容量が小さい場合
は、第３図に示すように受光信号を増巾して、大電流素
子１２−１．２を点弧後、サイリスタのゲートへ電流を
供給することも本発明内に含まれる。If the current capacity on the light receiving side of the photocoupler is small, the light receiving signal is amplified as shown in Figure 3, and after firing the large current element 12-1.2, the current is supplied to the gate of the thyristor. It is also included within the invention.
なお、図中１は抵抗器、２はコンデンダー、９はゲート
制御装置である。In the figure, 1 is a resistor, 2 is a capacitor, and 9 is a gate control device.
本発明によれば、多数の部品よυ宿成されているゲート
点弧回路、すなわち、ライトガイド、パルス増幅器、パ
ルストランスを一回路とすることができ、信頼性の高い
サイリスタ式交流電力制御装置を提供することができる
。According to the present invention, the gate ignition circuit, which is comprised of a large number of parts, that is, the light guide, the pulse amplifier, and the pulse transformer, can be integrated into one circuit, and a highly reliable thyristor-type AC power control device can be achieved. can be provided.
第１図は本発明の一実施例の主回路及びゲート点弧回路
図、第２図は第１図の各部の信号波形図、第３図は第２
図のホトカプラ出力を増幅した場合の回路図、第４図は
従来のサイリスタ式交流電力制御装置の主回路及びゲー
ト点弧回路図、第５図は第４図の各部の信号波形図であ
る。Fig. 1 is a main circuit and gate ignition circuit diagram of an embodiment of the present invention, Fig. 2 is a signal waveform diagram of each part of Fig. 1, and Fig. 3 is a diagram of the
FIG. 4 is a main circuit and gate ignition circuit diagram of a conventional thyristor-type AC power control device, and FIG. 5 is a signal waveform diagram of each part of FIG. 4.
Claims (1)
して成るアーム、このアームを点弧させる点弧信号を増
幅するパルス増幅器、このパルス増幅器の出力を絶縁し
て前記サイリスタに供給するパルストランスを備えたも
のに於いて、 前記アームの前記点弧信号を順、逆方向サイリスタで共
通として、前記サイリスタに印加される電圧の方向によ
り導通するスイッチを前記パルストランスの二次側に設
け、前記サイリスタに順方同電圧が印加されている場合
にのみ前記サイリスタにゲートパルスを供給することを
特徴とするサイリスタ式交流電力制御装置。[Claims] 1. An arm formed by connecting a plurality of circuits in which thyristors are connected in antiparallel in series, a pulse amplifier for amplifying the ignition signal for igniting this arm, and an output of the pulse amplifier isolated from the above. In the device equipped with a pulse transformer that supplies the thyristor, the ignition signal of the arm is common to the forward and reverse direction thyristors, and a switch that is made conductive depending on the direction of the voltage applied to the thyristor is connected to the two of the pulse transformers. A thyristor-type AC power control device provided on the next side and supplying a gate pulse to the thyristor only when the same forward voltage is applied to the thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973384A JPS6188764A (en) | 1984-10-08 | 1984-10-08 | Thyristor type ac power controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20973384A JPS6188764A (en) | 1984-10-08 | 1984-10-08 | Thyristor type ac power controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6188764A true JPS6188764A (en) | 1986-05-07 |
Family
ID=16577734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20973384A Pending JPS6188764A (en) | 1984-10-08 | 1984-10-08 | Thyristor type ac power controller |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6188764A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11255328B2 (en) | 2017-02-17 | 2022-02-22 | Leybold Gmbh | Multi-stage rotary lobe pump |
-
1984
- 1984-10-08 JP JP20973384A patent/JPS6188764A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11255328B2 (en) | 2017-02-17 | 2022-02-22 | Leybold Gmbh | Multi-stage rotary lobe pump |
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