JPH0817315A - Switch controller - Google Patents
Switch controllerInfo
- Publication number
- JPH0817315A JPH0817315A JP17610094A JP17610094A JPH0817315A JP H0817315 A JPH0817315 A JP H0817315A JP 17610094 A JP17610094 A JP 17610094A JP 17610094 A JP17610094 A JP 17610094A JP H0817315 A JPH0817315 A JP H0817315A
- Authority
- JP
- Japan
- Prior art keywords
- control
- switch
- voltage
- transistor
- electromagnetic coil
- 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.)
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Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、直流電気保持式の開閉
器の開閉を制御する開閉器制御装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch control device for controlling the opening / closing of a DC electric holding type switch.
【０００２】[0002]
【従来の技術】従来、この種電気保持式の開閉器は比較
的大きな投入電圧により投入されて閉成すると、その後
は印加電圧を保持電圧に減圧して閉成状態に保たれる。
したがって、この電気保持式の開閉器の開閉を制御する
従来の開閉器制御装置は、つぎに説明するように構成さ
れる。2. Description of the Related Art Conventionally, an electric holding type switch of this kind is closed by being applied with a relatively large applied voltage, and thereafter, the applied voltage is reduced to a holding voltage to be kept in a closed state.
Therefore, the conventional switch control device that controls the opening and closing of the electric holding type switch is configured as described below.
【０００３】つぎに、従来の開閉器制御装置につき、本
願発明の１実施例に対応する図１を参照して説明する。
図１はコンピュータのソフトウエア処理により開閉制御
する場合を示し、マイクロコンピュータ構成の制御部１
は、給電によりトリガされると、内部の演算処理部（Ｃ
ＰＵ）１ａがＲＯＭ１ｂに保持された開閉制御プログラ
ムをワーキング用及び情報記憶用のＲＡＭ１ｃを用いて
常時実行する。Next, a conventional switch control device will be described with reference to FIG. 1 corresponding to one embodiment of the present invention.
FIG. 1 shows a case in which opening / closing control is performed by software processing of a computer.
Is triggered by power supply, the internal processing unit (C
The PU) 1a constantly executes the open / close control program stored in the ROM 1b using the RAM 1c for working and storing information.
【０００４】この開閉制御プログラムは従来は図４に示
すステップＳ1 〜Ｓ9 により形成され、このプログラム
のステップＳ1 により制御部１は最初に指示指令
（「入」指令）の入力待ち（待機）になる。This opening / closing control program is conventionally formed by steps S 1 to S 9 shown in FIG. 4, and the control section 1 first waits for input of an instruction command (“ON” command) (waiting) by step S 1 of this program. )become.
【０００５】そして、ｔ１に交流しゃ断器等の制御対象
の開閉器２の投入操作が行われ、情報スイッチ３が押さ
れてこのスイッチ３の「入」指令の接点信号が制御部１
の入力インタフェース１ｄに与えられると、ステップＳ
1 を肯定（Ｙ）で通過してステップＳ2 の投入電圧制御
に移行し、出力インタフェース１ｄから絶縁分離用のホ
トカプラ４の発光ダイオード４ａに連続的にオン信号を
供給し、ダイオード４ａを点灯保持する。At time t1, the switch 2 to be controlled, such as an AC circuit breaker, is closed, the information switch 3 is pressed, and the contact signal of the "ON" command of the switch 3 is transmitted to the control unit 1.
When applied to the input interface 1d of
When 1 is affirmatively passed (Y), the process shifts to the control of the applied voltage in step S 2 , the ON signal is continuously supplied from the output interface 1d to the light emitting diode 4a of the photocoupler 4 for insulation separation, and the diode 4a is kept lit. To do.
【０００６】このダイオード４ａの点灯によりホトカプ
ラ４のホトトランジスタ４ｂがオンし、このとき、ダイ
オード５，６がオフしているため、例えば直流１５Ｖの
補助電源７が抵抗８，トランジスタ４ｂのコレクタ，エ
ミッタを介してこのトランジスタ４ｂにダーリントン接
続された駆動制御用のトランジスタ９のベースに与えら
れ、このトランジスタ９がオンする。When the diode 4a is turned on, the phototransistor 4b of the photocoupler 4 is turned on. At this time, the diodes 5 and 6 are turned off. Therefore, for example, the auxiliary power supply 7 of DC 15V is the resistor 8, the collector and emitter of the transistor 4b. Is supplied to the base of a drive control transistor 9 which is Darlington-connected to the transistor 4b through the transistor 4b, and the transistor 9 is turned on.
【０００７】さらに、ダイオード１０がオフしているた
め、補助電源７により図５に示すオンレベルの制御信号
Ｓ１が形成され、この制御信号Ｓ１が抵抗１１トランジ
スタ９のコレクタ，エミッタを介して開閉制御の半導体
スイッチ素子としての主トランジスタ１２のベースに印
加され、主トランジスタ１２がオンする。Further, since the diode 10 is off, the auxiliary power supply 7 forms an on-level control signal S1 shown in FIG. 5, and this control signal S1 is controlled to open / close via the collector and emitter of the resistor 11 transistor 9. Is applied to the base of the main transistor 12 as the semiconductor switching element of, and the main transistor 12 is turned on.
【０００８】このトランジスタ１２は、コレクタが例え
ば直流２００Ｖの主電源１３の正極に接続され、エミッ
タが平滑フィルタ１４の平滑リアクトル１５，開閉器２
の電磁コイル２ａ，開閉制御用の補助トランジスタ１６
のコレクタ，エミッタを介して主電源１３の負極に接続
され、主電源１３と電磁コイル２ａとの間に設けられ
る。The transistor 12 has a collector connected to the positive electrode of a main power source 13 of, for example, 200 V DC, and an emitter of the smoothing reactor 15 of the smoothing filter 14 and the switch 2.
Electromagnetic coil 2a, auxiliary transistor 16 for opening / closing control
Is connected to the negative electrode of the main power supply 13 via the collector and the emitter of, and is provided between the main power supply 13 and the electromagnetic coil 2a.
【０００９】そして、トランジスタ１２がオンすると、
ダイオード５，６，１０がオンしてトランジスタ４ｂ，
９の駆動電源が補助電源７から主電源１３に切換わり、
この電源１３に基づくオンレベルの制御信号Ｓ１により
トランジスタ１２はオンし続ける。When the transistor 12 is turned on,
When the diodes 5, 6 and 10 are turned on, the transistor 4b,
The drive power source of 9 is switched from the auxiliary power source 7 to the main power source 13,
The transistor 12 continues to be turned on by the on-level control signal S1 based on the power supply 13.
【００１０】また、リアクトル１５を介した主電源１３
が積分用のコンデンサ１７に注入されるとともにダイオ
ード１８，抵抗１９を介して時定数用のコンデンサ２０
に注入され、このコンデンサ２０の充電により、抵抗２
１を介してトランジスタ１６のベースに図５に示すオン
レベルの制御信号Ｓ２が与えられ、トランジスタ１６が
オンする。Further, the main power source 13 via the reactor 15
Is injected into the capacitor 17 for integration, and the capacitor 20 for time constant is supplied via the diode 18 and the resistor 19.
Is injected into the resistor 20 and the charging of this capacitor 20 causes resistance 2
The control signal S2 at the on level shown in FIG.
【００１１】そして、トランジスタ１６がオンすると、
リアクトル１５を介した主電源１３により電磁コイル２
ａが通電駆動される。When the transistor 16 is turned on,
Electromagnetic coil 2 by main power supply 13 via reactor 15
a is electrically driven.
【００１２】このとき、トランジスタ１２が連続的にオ
ンするため、図５に示すように電磁コイル２ａにほぼ主
電源１３の電圧に相当する比較的大きな投入電圧Ｅ1 が
印加され、この投入電圧Ｅ1 の印加により開閉器２はｔ
２に主回路接点２ｂが閉成して投入される。At this time, since the transistor 12 is continuously turned on, as shown in FIG. 5, a relatively large applied voltage E 1 corresponding to the voltage of the main power source 13 is applied to the electromagnetic coil 2a. Switch 2 is t by the application of 1
The main circuit contact 2b is closed and turned on at 2.
【００１３】また、主回路接点２ｂの閉成に連動して開
閉器２の補助接点２ｃが閉成し、この接点２ｃの閉成の
接点信号が開閉器２の投入完了信号として入力インタフ
ェース１ｄに供給される。The auxiliary contact 2c of the switch 2 is closed in conjunction with the closing of the main circuit contact 2b, and the contact signal for closing the contact 2c is input to the input interface 1d as a closing completion signal of the switch 2. Supplied.
【００１４】そして、制御部１は投入完了信号により開
閉器２の投入を確認すると、図４のステップＳ5 の保持
電圧制御に移行し、発光ダイオード４ａに供給する信号
を連続的なオン信号からパルス信号に変更し、トランジ
スタ１２のベースの制御信号Ｓ１を周期的なパルス信号
に切換える。When the controller 1 confirms the closing of the switch 2 by the closing completion signal, it shifts to the holding voltage control of step S 5 of FIG. 4 and changes the signal supplied to the light emitting diode 4a from the continuous ON signal. The signal is changed to a pulse signal, and the control signal S1 of the base of the transistor 12 is switched to a periodic pulse signal.
【００１５】この信号の切換えによりトランジスタ１２
は連続的なオンからスイッチングに移行し、このスイッ
チングにより主電源１３を断続する。By switching this signal, the transistor 12
Shifts from continuous ON to switching, and the main power supply 13 is interrupted by this switching.
【００１６】さらに、この断続により生じたトランジス
タ１２のエミッタのパルス出力がリアクトル１５，コン
デンサ１７により平滑されるとともに、トランジスタ１
２のオフ期間にリアクトル１５のエネルギがフライホイ
ルダイオード２２を介して放出され、開閉器２の投入状
態の維持に必要な例えば２４Ｖの保持電圧Ｅ2 （≪
Ｅ1 ）に減圧した直流電源が形成される。Further, the pulse output of the emitter of the transistor 12 caused by this interruption is smoothed by the reactor 15 and the capacitor 17, and the transistor 1
The energy of the reactor 15 is released through the flywheel diode 22 during the OFF period of 2, and the holding voltage E 2 (24 V, for example, which is necessary to maintain the closed state of the switch 2 is maintained.
A reduced voltage DC power supply is formed at E 1 ).
【００１７】そして、この保持電圧Ｅ2 の直流電源によ
り、トランジスタ１６がオン状態に保たれて電磁コイル
２ａの印加電圧が投入電圧Ｅ1 から保持電圧Ｅ2 に減圧
されて開閉器２が電気的に投入状態に保持される。The DC power supply of the holding voltage E 2 keeps the transistor 16 in the ON state and reduces the applied voltage of the electromagnetic coil 2a from the applied voltage E 1 to the holding voltage E 2 to electrically switch the switch 2. Is kept in the input state.
【００１８】つぎに、ｔ３に開放操作が行われて操作ス
イッチ３が押され、このスイッチ３の「切」指令の接点
信号が入力インタフェース１ｄに与えられると、制御部
１が図４のステップＳ6 を肯定で通過してステップＳ7
の開放制御に移行する。Next, when the opening operation is performed at t3 and the operation switch 3 is pushed, and the contact signal of the "off" command of this switch 3 is given to the input interface 1d, the control unit 1 causes the step S1 of FIG. Passing 6 in affirmative, step S 7
Shifts to the opening control of.
【００１９】この開放制御になると、制御部１は発光ダ
イオード４ａのオン信号供給を即時に停止し、トランジ
スタ４ｂ，９をオフして制御信号Ｓ１をオフレベルに固
定し、トランジスタ１２をオフする。In this opening control, the control unit 1 immediately stops the ON signal supply of the light emitting diode 4a, turns off the transistors 4b and 9 to fix the control signal S1 at the OFF level, and turns off the transistor 12.
【００２０】そして、このトランジスタ１２のオフによ
り、電磁コイル２ａの印加電圧がリアクトル１５，コン
デンサ１７，抵抗２３等に基づく時定数で低下して消失
し、主回路接点２ｂが開放して開閉器２が開放する。When the transistor 12 is turned off, the voltage applied to the electromagnetic coil 2a decreases and disappears due to the time constant based on the reactor 15, the capacitor 17, the resistor 23, etc., and the main circuit contact 2b opens and the switch 2 is opened. Opens.
【００２１】また、トランジスタ１２がオフすると、コ
ンデンサ２０の電荷がコンデンサ２０，抵抗２１，２４
等に基づく時定数で放電し、一定時限後にトランジスタ
１６がオフして電磁コイル２ａの通電路が開放され、開
閉器２の開放時限が規制される。When the transistor 12 is turned off, the electric charge of the capacitor 20 is changed to the capacitor 20, the resistors 21 and 24.
The discharge is performed with a time constant based on the above, and after a fixed time period, the transistor 16 is turned off to open the energization path of the electromagnetic coil 2a, and the opening time period of the switch 2 is regulated.
【００２２】さらに、開閉器２が開放すると、主回路接
点２ｂの開放に連動して補助接点２ｃが開放し、この接
点２ｃの開放の接点信号が開閉器２の開放完了信号とし
て入力インタフェース１ｄに供給される。Further, when the switch 2 is opened, the auxiliary contact 2c is opened in conjunction with the opening of the main circuit contact 2b, and the contact signal of the opening of this contact 2c is input to the input interface 1d as the opening completion signal of the switch 2. Supplied.
【００２３】そして、通常は「切」指令の発生直後に
「入」指令が発生しないため、制御部１は図４のステッ
プＳ8 を否定で通過してステップＳ9 に移行し、このス
テップＳ9 により前記の開放完了信号により開閉器２の
開放を確認すると、ステップＳ1 の指令待機に戻る。な
お、図１の２５〜２７は逆サージ防止等に用いられるダ
イオード、２８は限流用の抵抗である。[0023] Since usually the "OFF""ON" command is not generated immediately after the occurrence of the command, the control unit 1 proceeds to step S 9 through a negative step S 8 of FIG. 4, step S When the opening of the switch 2 is confirmed by the above-mentioned opening completion signal at 9 , the process returns to the command waiting in step S 1 . In FIG. 1, 25 to 27 are diodes used for reverse surge prevention and the like, and 28 is a current limiting resistor.
【００２４】[0024]
【発明が解決しようとする課題】前記従来の開閉器制御
装置の場合、「切」指令により開閉器２の開放制御が発
生すると、即時にトランジスタ１２をオフして電磁コイ
ル２ａの通電を停止する構成であるため、とくに、投入
電圧制御が行われる図５のｔ１〜ｔ２の投入期間中のｔ
ｘに「切」指令により開閉器２の開放制御が発生し、図
４のステップＳ3を肯定で通過してステップＳ7 の開放
制御に移行してトランジスタ１２がオフするときは、そ
の直前の電磁コイル２ａの印加電圧が大きな投入電圧Ｅ
1 であるため、電磁コイル２ａの蓄積エネルギ等に基づ
く過大な開放サージが発生し、このサージによりトラン
ジスタ１２，１６等の破損が発生して信頼性の向上等が
図れない問題点がある。In the case of the above-mentioned conventional switch control device, when the open control of the switch 2 is generated by the "off" command, the transistor 12 is immediately turned off and the energization of the electromagnetic coil 2a is stopped. Because of the configuration, in particular, t during the closing period of t1 to t2 in FIG. 5 in which the closing voltage control is performed.
When the opening control of the switch 2 is generated by the “off” command to x, the step S 3 of FIG. 4 is positively passed, the process shifts to the opening control of the step S 7 , and the transistor 12 is turned off. The applied voltage E of the electromagnetic coil 2a is large.
Since it is 1 , an excessive open surge is generated based on the accumulated energy of the electromagnetic coil 2a, and this surge causes damage to the transistors 12, 16 and the like, and there is a problem that reliability cannot be improved.
【００２５】本発明は、直流電気保持式の開閉器の投入
中に開放制御が発生したときの投入電圧の制御停止に伴
う過大な逆サージの発生を防止することを目的とする。An object of the present invention is to prevent the generation of an excessive reverse surge due to the stoppage of the control of the applied voltage when the open control is generated during the operation of the DC electric holding type switch.
【００２６】[0026]
【課題を解決するための手段】前記の目的を達成するた
めに、本発明の開閉制御装置においては、制御部に、投
入電圧制御中の開閉器の開放制御の発生により即時に投
入電圧制御から非常開放制御に切換える制御切換手段
と、、非常開放制御により，所定期間半導体スイッチ素
子をスイッチングして開閉器の電磁コイルの印加電圧を
ほぼ保持電圧まで減圧した後半導体スイッチ素子をオフ
して開閉器を開放する開放制御手段とを備える。In order to achieve the above-mentioned object, in the switching control device of the present invention, the control section immediately switches from the closing voltage control due to the occurrence of the opening control of the switch during the closing voltage control. Control switching means for switching to the emergency open control, and by the emergency open control, the semiconductor switch element is switched for a predetermined period of time to reduce the applied voltage of the electromagnetic coil of the switch to almost the holding voltage, and then the semiconductor switch element is turned off to switch the switch. And an opening control means for opening.
【００２７】[0027]
【作用】前記のように構成された本発明の開閉器制御装
置の場合、投入電圧制御により開閉器の電磁コイルに投
入電圧が印加される開閉器の投入中に開放制御が発生す
ると、制御切換手段により即時に投入電圧制御から非常
開放制御に切換わる。In the switch control device of the present invention configured as described above, when the opening control occurs during the closing of the switch in which the closing voltage is applied to the electromagnetic coil of the switch by the closing voltage control, the control is switched. The means immediately switches from the applied voltage control to the emergency open control.
【００２８】そして、この非常開放制御に切換わると、
開放制御手段により、所定期間半導体スイッチ素子をス
イッチングして電磁コイルの印加電圧をほぼ保持電圧ま
で減圧した後に、半導体スイッチ素子をオフして電磁コ
イルの給電を停止し、開閉器を開放する。When switching to this emergency opening control,
After the semiconductor switch element is switched by the opening control means for a predetermined period to reduce the applied voltage of the electromagnetic coil to approximately the holding voltage, the semiconductor switch element is turned off to stop the power supply to the electromagnetic coil and open the switch.
【００２９】したがって、半導体スイッチ素子がオフし
て開閉器が開放するときに、その直前の電磁コイルの印
加電圧が投入電圧より十分に低くなり、従来の過大な逆
サージの発生が防止される。Therefore, when the semiconductor switch element is turned off and the switch is opened, the voltage applied to the electromagnetic coil immediately before that is sufficiently lower than the applied voltage, and the conventional excessive reverse surge is prevented.
【００３０】[0030]
【実施例】１実施例について、図１ないし図３を参照し
て説明する。図１において、従来装置と異なる点は、制
御部１のＲＯＭ１ｂに保持された開閉制御プログラムを
変更し、制御部１に、投入電圧制御中の開閉器２の開放
制御の発生により即時に投入電圧制御から非常開放制御
に切換える制御切換手段と、非常開放制御により，所定
期間半導体スイッチ素子としてのトランジスタ１２をス
イッチングして電磁コイル２ａの印加電圧をほぼ保持電
圧Ｅ2 まで減圧した後トランジスタ１２をオフして開閉
器２を開放する開放制御手段とを備えた点である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment will be described with reference to FIGS. 1 is different from the conventional device in that the switching control program stored in the ROM 1b of the control unit 1 is changed so that the control unit 1 immediately generates the open voltage by generating the open control of the switch 2 during the supply voltage control. Control switching means for switching from control to emergency open control, and by the emergency open control, the transistor 12 as a semiconductor switch element is switched for a predetermined period to reduce the applied voltage of the electromagnetic coil 2a to approximately the holding voltage E 2 and then turn off the transistor 12. The opening control means for opening the switch 2 is provided.
【００３１】そして、制御部１は給電によりトリガされ
ると、ＲＯＭ１ｂの開閉制御プログラムを実行する。こ
のプログラムは図２のステップＳ１〜Ｓ１１により形成
され、通常は、図４のステップＳ1 〜Ｓ9 に対応するス
テップＳ１〜Ｓ９により、従来装置と同様の投入電圧制
御，保持電圧制御，開放制御を実行する。When the control unit 1 is triggered by power supply, it executes the opening / closing control program of the ROM 1b. This program is formed by the step S1~S11 in Figure 2, typically, in step S1~S9 corresponding to step S 1 to S 9 in FIG. 4, a conventional apparatus similar to put the voltage control, the holding voltage control, opening control To execute.
【００３２】つぎに、開閉器２の投入中に「切」指令に
基づく開放制御が発生した場合について説明する。ま
ず、従来装置と同様ｔ１に投入操作が行われると、スイ
ッチ３の「入」指令の操作信号に基づき、制御部１が図
２のステップＳ２の投入電圧制御に移行し、図３に示す
オンレベルの制御信号Ｓ１によりトランジスタ１２が連
続的にオンする。Next, the case where the opening control based on the "off" command is generated while the switch 2 is closed will be described. First, when the closing operation is performed at t1 similarly to the conventional device, the control unit 1 shifts to the closing voltage control of step S2 of FIG. 2 based on the operation signal of the “ON” command of the switch 3, and the ON state shown in FIG. The transistor 12 is continuously turned on by the level control signal S1.
【００３３】また、図３に示すオンレベルの制御信号Ｓ
２によりトランジスタ１６をオンする。そして、トラン
ジスタ１２，１５がオンして電磁コイル２ａに投入電圧
Ｅ1 が印加される開閉器２の投入中の図３のｔｘに、ス
イッチ３の「切」指令の操作信号が発生すると、制御切
換手段により、制御部１が投入電圧制御から非常開放制
御に即時に切換わり、図２のステップＳ３を肯定で通過
してステップＳ１０に移行する。Further, the on-level control signal S shown in FIG.
2 turns on the transistor 16. Then, when the operation signal of the “off” command of the switch 3 is generated at tx in FIG. 3 during the closing of the switch 2 in which the transistors 12 and 15 are turned on and the closing voltage E 1 is applied to the electromagnetic coil 2a, the control is performed. The switching unit causes the control unit 1 to immediately switch from the applied voltage control to the emergency opening control, and passes step S3 in FIG. 2 in the affirmative to proceed to step S10.
【００３４】このとき、制御部１は開放制御手段の非常
開放制御により、保持電圧制御の場合と同様、発光ダイ
オード４ａに供給する信号を保持パルス信号に変更し、
図３に示すように制御信号Ｓ１を周期的なパルス信号に
切換えてトランジスタ１２をスイッチングする。At this time, the control unit 1 changes the signal supplied to the light emitting diode 4a to the holding pulse signal by the emergency opening control of the opening control means, as in the case of the holding voltage control.
As shown in FIG. 3, the control signal S1 is switched to a periodic pulse signal to switch the transistor 12.
【００３５】そして、ステップＳ１０，Ｓ１１のタイマ
動作によりトランジスタ１２のスイッチングを予め設定
した減電圧期間Ｔ0 （所定期間）継続し、電磁コイル２
ａの印加電圧を図３に示すようにしてほぼ保持電圧Ｅ2
まで減圧する。Then, the switching of the transistor 12 is continued by the preset voltage reduction period T 0 (predetermined period) by the timer operation of steps S10 and S11, and the electromagnetic coil 2
As shown in FIG. 3, the applied voltage of a is almost equal to the holding voltage E 2
Depressurize to.
【００３６】なお、減電圧期間Ｔ0 は、電磁コイル２ａ
の直流抵抗成分，リアクタンス成分をＲｄ，Ｌｘとする
と、つぎの数１の放電特性の式から求められて設定され
る。In the voltage reduction period T 0 , the electromagnetic coil 2a
When the direct current resistance component and the reactance component of R are defined as Rd and Lx, they are obtained and set by the following equation of the discharge characteristic.
【００３７】[0037]
【数１】 [Equation 1]
【００３８】そして、減電圧期間Ｔ0 が経過して図３の
ｔｙになると、ステップＳ１１を肯定で通過してステッ
プＳ７に移行し、通常の開放制御の場合と同様、制御信
号Ｓ１をオフレベルに保ってトランジスタ１２をオフ
し、電磁コイル２ａの印加電圧を消失して開閉器２を開
放する。[0038] Then, at ty of 3 with the passage of reduced voltage period T 0, the process proceeds to step S7 through the step S11 in the affirmative, as in the case of normal opening control, the control signal S1 off level Then, the transistor 12 is turned off, the applied voltage to the electromagnetic coil 2a disappears, and the switch 2 is opened.
【００３９】したがって、投入中の開閉器２を開放する
ときに、電磁コイル２ａの印加電圧が投入電圧Ｅ1 より
十分低い保持電圧Ｅ2 程度になり、従来装置の場合のよ
うな過大な開放サージの発生が防止され、トランジスタ
１２，１６等の周辺回路部品の開放サージによる破損が
防止され、信頼性が向上する。Therefore, when the switch 2 being opened is opened, the applied voltage of the electromagnetic coil 2a becomes about the holding voltage E 2 which is sufficiently lower than the making voltage E 1 , resulting in an excessive opening surge as in the case of the conventional device. Is prevented, damage to peripheral circuit parts such as the transistors 12 and 16 due to an open surge is prevented, and reliability is improved.
【００４０】そして、減電圧期間Ｔ0 の制御信号Ｓ１の
パルス周期は、前記実施例のように一定周期に設定しす
る代わりに、時間とともに長周期に可変してもよく、こ
の場合は電磁コイル２ａの印加電圧が図３の破線に示
すように、実線の一定周期の場合より滑らかに減少変
化し、破損防止等が一層効果的に行える。The pulse period of the control signal S1 in the reduced voltage period T 0 may be changed to a long period with time instead of being set to a constant period as in the above embodiment. In this case, the electromagnetic coil is used. As shown by the broken line in FIG. 3, the applied voltage of 2a changes more smoothly than in the case where the solid line has a constant cycle, and the damage can be prevented more effectively.
【００４１】また、前記実施例では半導体スイッチ素子
をトランジスタにより形成したが、半導体スイッチ素子
がサイリスタ等の場合にも適用できるのは勿論である。Further, although the semiconductor switch element is formed of a transistor in the above embodiment, it is needless to say that the present invention can be applied to the case where the semiconductor switch element is a thyristor or the like.
【００４２】つぎに、前記実施例ではトランジスタ１２
を介した主電源に基づくコンデンサ２０の充放電によ
り、いわゆる自己バイアス制御でトランジスタ１６のス
イッチングを制御したが、例えば制御部１からトランジ
スタ１６のベースに制御信号を供給してトランジスタ１
６のスイッチングを制御してもよい。そして、構成の簡
素化等を図るときは、トランジスタ１６を省いてもよ
い。Next, in the above embodiment, the transistor 12
The switching of the transistor 16 is controlled by so-called self-bias control by charging and discharging the capacitor 20 based on the main power source via the transistor 1. For example, the control unit 1 supplies a control signal to the base of the transistor 16
6 switching may be controlled. The transistor 16 may be omitted when the configuration is simplified.
【００４３】つぎに、前記実施例においては、制御部１
をマイクロコンピュータにより形成し、いわゆるソフト
ウエア処理で開閉器２を開閉制御したが、例えば、制御
部１をゲート回路、タイマ回路等により形成し、いわゆ
るハードウエア処理により開閉器２を開閉制御するよう
にしてもよい。Next, in the above embodiment, the control unit 1
Is formed by a microcomputer and the switch 2 is controlled to be opened / closed by so-called software processing. For example, the control unit 1 is formed by a gate circuit, a timer circuit, etc. so that the switch 2 is controlled to be opened / closed by so-called hardware processing. You may
【００４４】また、平滑フィルタ１４等の構成は実施例
に限定されるものではない。そして、直流電気保持式の
種々の開閉器の制御に適用できるのは勿論であり、この
場合、主電源１３の電圧，減電圧期間Ｔ0 等は開閉器の
特性等に応じて設定すればよい。The configuration of the smoothing filter 14 and the like is not limited to the embodiment. And, of course, it can be applied to the control of various switches of the DC electric holding type, and in this case, the voltage of the main power source 13, the voltage reduction period T 0, etc. may be set according to the characteristics of the switch. .
【００４５】[0045]
【発明の効果】本発明は、以上説明したように構成され
るため、以下に記載する効果を奏する。制御部１の投入
電圧制御により開閉器２の電磁コイル２ａに投入電圧が
印加される開閉器２の投入中に開放制御が発生すると、
制御切換手段により即時に投入電圧制御から非常開放制
御に切換わり、開放制御手段により所定期間半導体スイ
ッチ素子（トランジスタ１２）をスイッチングして電磁
コイル２ａの印加電圧をほぼ保持電圧に減圧した後、半
導体スイッチ素子をオフして電磁コイル２ａの給電を停
止し、開閉器２を開放したため、半導体スイッチ素子が
オフして開閉器２が開放する直前の電磁コイル２ａの印
加電圧が投入電圧からほぼ保持電圧に減圧され、従来の
投入電圧に伴う過大な逆サージの発生が防止され、この
逆サージによる周辺部品の破損が防止されて信頼性が向
上する。Since the present invention is configured as described above, it has the following effects. When the opening control occurs during the closing of the switch 2 in which the closing voltage is applied to the electromagnetic coil 2a of the switch 2 by the closing voltage control of the control unit 1,
The control switching means immediately switches from the applied voltage control to the emergency open control, and the open control means switches the semiconductor switch element (transistor 12) for a predetermined period to reduce the applied voltage of the electromagnetic coil 2a to substantially the holding voltage. Since the switch element is turned off to stop the power supply to the electromagnetic coil 2a and the switch 2 is opened, the applied voltage of the electromagnetic coil 2a immediately before the semiconductor switch element is turned off and the switch 2 is opened is almost equal to the holding voltage from the applied voltage. It is decompressed to prevent the generation of an excessive reverse surge due to the conventional turn-on voltage, and damage to peripheral parts due to this reverse surge is prevented, thus improving reliability.
【図１】本発明の開閉器制御装置の１実施例の結線図で
ある。FIG. 1 is a connection diagram of an embodiment of a switch control device of the present invention.
【図２】図１の制御部の動作説明用のフローチャートで
ある。FIG. 2 is a flowchart for explaining the operation of the control unit in FIG.
【図３】図１の動作説明用のタイミングチャートであ
る。FIG. 3 is a timing chart for explaining the operation of FIG.
【図４】従来装置の制御部の動作説明用のフローチャー
トである。FIG. 4 is a flowchart for explaining the operation of the control unit of the conventional device.
【図５】従来装置の動作説明用のタイミングチャートで
ある。FIG. 5 is a timing chart for explaining the operation of the conventional device.
１ 制御部 ２ 開閉器 ２ａ 電磁コイル １２ 半導体スイッチ素子としてのトランジスタ １４ 平滑フィルタ 1 Controller 2 Switch 2a Electromagnetic coil 12 Transistor as semiconductor switch element 14 Smoothing filter
Claims (1)
磁コイルとの間に設けられ，制御部の駆動制御により前
記直流電源を断続する半導体スイッチ素子と、該スイッ
チ素子の断続出力を平滑して前記電磁コイルに供給する
平滑フィルタとを備え、 前記開閉器の投入時、前記制御部の投入電圧制御によ
り、前記半導体スイッチ素子を連続的にオンして前記電
磁コイルに投入電圧を印加し、 前記開閉器の閉成後、前記制御部を前記投入電圧制御か
ら保持電圧制御に切換え、 該保持電圧制御により、前記半導体スイッチ素子をスイ
ッチングして前記電磁コイルの印加電圧を保持電圧に減
圧し、 前記開閉器の開放制御が発生するまで前記電磁コイルに
前記保持電圧を印加して前記開閉器を閉成保持する開閉
器制御装置において、 前記制御部に、 前記投入電圧制御中の前記開閉器の開放制御の発生によ
り即時に前記投入電圧制御から非常開放制御に切換える
制御切換手段と、 前記非常開放制御により，所定期間前記半導体スイッチ
素子をスイッチングして前記電磁コイルの印加電圧をほ
ぼ前記保持電圧まで減圧した後前記半導体スイッチ素子
をオフして前記開閉器を開放する開放制御手段とを備え
た開閉器制御装置。1. A semiconductor switch element which is provided between a DC power source and an electromagnetic coil of a DC electric holding type switch, and which connects and disconnects the DC power source by drive control of a control unit, and an intermittent output of the switch element is smoothed. And a smoothing filter which supplies the electromagnetic coil to the electromagnetic coil. When the switch is turned on, the semiconductor switch element is continuously turned on by the applied voltage control of the control unit to apply the applied voltage to the electromagnetic coil. After the switch is closed, the control unit is switched from the applied voltage control to the holding voltage control, and the holding voltage control switches the semiconductor switch element to reduce the applied voltage of the electromagnetic coil to the holding voltage. In a switch control device that applies the holding voltage to the electromagnetic coil and closes and holds the switch until opening control of the switch occurs, The control switching means for immediately switching from the closing voltage control to the emergency opening control when the opening control of the switch is generated during the closing voltage control; and the semiconductor switching device is switched by the emergency opening control for a predetermined period. A switch control device comprising: an open control means for turning off the semiconductor switch element to open the switch after reducing the voltage applied to the coil to substantially the holding voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17610094A JP3551477B2 (en) | 1994-07-04 | 1994-07-04 | Switch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17610094A JP3551477B2 (en) | 1994-07-04 | 1994-07-04 | Switch control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0817315A true JPH0817315A (en) | 1996-01-19 |
| JP3551477B2 JP3551477B2 (en) | 2004-08-04 |
Family
ID=16007701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17610094A Expired - Fee Related JP3551477B2 (en) | 1994-07-04 | 1994-07-04 | Switch control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3551477B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006016400A1 (en) * | 2004-08-10 | 2006-02-16 | Mitsubishi Denki Kabushiki Kaisha | Drive circuit of dc voltage driven magnet contactor and power converter |
| JP2015505283A (en) * | 2011-12-27 | 2015-02-19 | コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツングＣｏｎｔｉｎｅｎｔａｌ Ａｕｔｏｍｏｔｉｖｅ ＧｍｂＨ | On-board power supply network system and operation method of on-board power supply network system |
-
1994
- 1994-07-04 JP JP17610094A patent/JP3551477B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006016400A1 (en) * | 2004-08-10 | 2006-02-16 | Mitsubishi Denki Kabushiki Kaisha | Drive circuit of dc voltage driven magnet contactor and power converter |
| GB2423653A (en) * | 2004-08-10 | 2006-08-30 | Mitsubishi Electric Corp | Semiconductor storage device |
| US7369391B2 (en) | 2004-08-10 | 2008-05-06 | Mitsubishi Denki Kabushiki Kaisha | Drive circuit of direct-current voltage-driven magnetic contactor and power converter |
| GB2423653B (en) * | 2004-08-10 | 2008-06-04 | Mitsubishi Electric Corp | Drive Circuit of Direct-Current Voltage-Driven Magnetic Contactor and Power Converter |
| JP2015505283A (en) * | 2011-12-27 | 2015-02-19 | コンチネンタル オートモーティヴ ゲゼルシャフト ミット ベシュレンクテル ハフツングＣｏｎｔｉｎｅｎｔａｌ Ａｕｔｏｍｏｔｉｖｅ ＧｍｂＨ | On-board power supply network system and operation method of on-board power supply network system |
| US9840149B2 (en) | 2011-12-27 | 2017-12-12 | Continental Automotive Gmbh | Vehicle electrical distribution system and method for operating a vehicle electrical distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3551477B2 (en) | 2004-08-04 |
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